programming cg-svp01b-en troubleshooting guide the manual literature change history cg-svp01b-en ......

Trane has a policy of continuous product and product dataimprovement and reserves the right to change design andspecifications without notice. Only qualified technicians shouldperform the installation and servicing of equipment referred toin this publication.

Programming CG-SVP01B-ENTroubleshootingGuide

Library Service Literature

Product Section Refrigeration

Product Hermetic Scroll Liquid Chillers, Air Cooled

Model CG

Literature Type Programming, Trouble Shooting Guide

Sequence 01B

Date January 2005

File No. SV-RF-CG-SVP01B-EN 1/05

Supersedes CG-SVP01A-EN 4/03

IntelliPak��Air-Cooled Cold Generator

Models"H" and Later Design Sequence CGAF-C20 CGAF-C40 CGAF-C25 CGAF-C50 CGAF-C30 CGAF-C60

With 3-DTM Scroll Compressors

��2005 American Standard Inc. All rights reservedhttp://www.trane.com

2

About The ManualLiterature Change History

CG-SVP01B-EN (January 2005)Original issue of this manual; provides specific program-ming, diagnostic, and troubleshooting information CGAFunits with “K” and later design sequence.

Overview of Manual

Note: One copy of this document ships inside thecontrol panel of each unit and is customerproperty. It must be retained by the unit’smaintenance personnel.

These units are equipped with electronic control moduleswhich provides operating functions that are significantly dif-ferent than conventional units.

The manual is divided into 6 sections. Each section pro-vides the operator with specific information about the sys-tem operating parameters and their related screens. Bycarefully following the screen layout within this manualwhile scrolling through the Human Interface, the operatorcan monitor operating status, set specific operating param-eters, and diagnose system problems.

Before attempting to operate or service this equipment, re-fer to the “Start-Up” and “Test Mode” procedures in the ap-plicable Installation, Operation and Maintenance manual,listed on the unit nameplate.

Note: The procedures discussed in this manualshould only be performed by qualified, experiencedHVAC technicians.

Refer to the Table of Contents and Index for specific topicscontained in this manual and supporting manuals.

3

Table of ContentsAbout The Manual

Literature Change History ....................................................... 2Overview of Manual ................................................................. 2

General InformationModel Number Description ...................................................... 4Unit Nameplate ........................................................................ 4Hazard Identification ................................................................ 4Commonly Used Acronyms ..................................................... 4Glossary of Terms .................................................................... 5UCM Control System ............................................................... 6UCM Module ............................................................................ 6Compressor Module ................................................................ 6Interprocessor Communications Bridge Module ..................... 6Trane Communications Interface Module ............................... 6Generic BAS Module ............................................................... 6Power Disconnecting Switches ............................................... 6Manual Disconnect Switch ...................................................... 6115V Control Circuit Switch (1S1) ........................................... 624 Transformer Switch (1S70) ................................................ 6Human Interface Module ......................................................... 7General Operation ................................................................... 7Menu Keys ............................................................................... 8Data Manipulation Keys .......................................................... 8Unit Operation Keys ................................................................ 9General Status Display .......................................................... 10Unit "Off" or "Stopped" .......................................................... 10Unit "On" ................................................................................ 10No Configuration .................................................................... 10Factory Presets ..................................................................... 11Password Protected Screens ................................................ 14

1 Status Menu1.1 <top level status screen> ................................................. 151.2 Active Leaving Solution Setpoint or Active Ice Build Terminate STP ........................................ 151.3 Compressor Status Submenu ......................................... 15

Compressor Relay K11 ......................................................... 16Compressor Relay K12 ......................................................... 16Compressor Relay K3 ........................................................... 16Compressor Relay K4 ........................................................... 16Compressor Module Ckt 1, Saturated Condensor Temperature16Refrigerant Ckt 1, Suction andSat Liquid Temperatures ....................................................... 16Refrigerant Ckt 1, Suction and Liquid Pressures ................. 16Refrigerant Ckt 1, Superheat andSubcooling Temperatures ...................................................... 16Compressor Module Ckt 2, SaturatedCondensor Temperature ........................................................ 16Refrigerant Ckt 2, Suction andSat Liquid Temperatures ....................................................... 17Refrigerant Ckt 2, Suction and Liquid Pressures ................. 17Refrigerant Ckt 2, Superheat andSubcooling Temperatures ...................................................... 17Ckt 1 and 2 Liquid Line Solenoid Valve ................................ 17Compressor 1A Currents, Phase A and B ............................. 17Compressor 1B Currents, Phase A and C ............................ 17Compressor 2A Currents, Phase B and C ............................ 17Compressor 2B Currents, Phase A and C ............................ 17

1.4 General System Status Submenu ................................... 17CGM Evap Solution Pump Relay and Evap Soln FlowSwitch Proving ....................................................................... 17MCM Heat Tape Control Relay ............................................. 18CGM Hot Gas Bypass Control Relay .................................... 18CGM Ice Building Control Relay ........................................... 18Setpoint Value Measured, CGM Ext Leaving Soln STP ....... 18

1.5 Controlling Setpoint Status Submenu ........................... 18Active Leaving Solution Setpoint, and source ...................... 18Active Ice Build Termination Setpoint, and source ............... 18Active Hot Start Load Limit Setpt, and source ...................... 19Active Capacity Limit Setpoint, and source .......................... 19

1.6 Temperature Input Status Submenu .............................. 19Temp Measured by Sensor Connected ToCGM Entering Soln Temp Input ............................................ 19

Temp Measured by Sensor Connected ToCGM Leaving Soln Temp Input ............................................. 19Temp Measured by Sensor Connected ToCGM Outside Air Temp Input ................................................ 19Compressor Module Ckt 1 SaturatedCondenser Temperature ........................................................ 19Refrigerant Ckt 1, Suction andLiquid Line Temperatures ...................................................... 19Compressor Module Ckt 2 SaturatedCondenser Temperature ........................................................ 19Refrigerant Ckt 2, Suction andLiquid Line Temperatures ...................................................... 20Temp Measured by Sensor Connected ToCGM Zone Temp Input .......................................................... 20Temp Measured by Sensor Connected ToCGM ICS Temp Input ............................................................ 20

1.7 Misc Input Status Submenu ............................................ 20CGM Ice Build Command Input ............................................ 20CGM Evap Soln Flow Switch Input ....................................... 20Refrigerant Ckt 1, Suction and Liquid Pressures ................. 20Refrigerant Ckt 2, Suction and Liquid Pressures ................. 20Compressor 1A Current, Phase A and B .............................. 20Compressor 1B Current, Phase A and C .............................. 20Compressor 2A Current, Phase B and C .............................. 21Compressor 2B Current, Phase A and C .............................. 21

1.8 GBAS 0-5VDC Module Status Submenu ........................ 21GBAS 0-5VDC Analog Input 1, Voltage and Assignment ..... 21GBAS 0-5VDC Analog Input 2, Voltage and Assignment ..... 21GBAS 0-5VDC Analog Input 3, Voltage and Assignment ..... 21GBAS 0-5VDC Analog Input 4, Voltage and Assignment ..... 21GBAS 0-5VDC Demand Limit Input Status ........................... 21GBAS 0-5VDC Binary Output 1, Status and Assignment ..... 21GBAS 0-5VDC Binary Output 2, Status and Assignment ..... 21GBAS 0-5VDC Binary Output 3, Status and Assignment ..... 21GBAS 0-5VDC Binary Output 4, Status and Assignment ..... 21GBAS 0-5VDC Binary Output 5, Status and Assignment ..... 21

1.9 GBAS 0-10VDC Module Status Submenu ...................... 21GBAS 0-10VDC Analog Input 1, Voltage and Assignment ... 21GBAS 0-10VDC Analog Input 2, Voltage and Assignment ... 21GBAS 0-10VDC Analog Input 3, Voltage and Assignment ... 21GBAS 0-10VDC Analog Input 4, Voltage and Assignment ... 21GBAS 0-10VDC Demand Limit Input Status ......................... 22GBAS 0-10VDC Binary Output 1, Status and Assignment ... 22GBAS 0-10VDC Analog Output 1, Voltage and Assignment 22GBAS 0-10VDC Analog Output 2, Voltage and Assignment 22GBAS 0-10VDC Analog Output 3, Voltage and Assignment 22GBAS 0-10VDC Analog Output 4, Voltage and Assignment 22GBAS 0-10VDC Analog Output 5, Voltage and Assignment 22

2 Setpoints MenuHI Leaving Solution Setpoint ................................................. 34HI Ice Build Terminate Setpoint ............................................. 34Low Solution Cutout Temp .................................................... 34Heat Tape Temperature Setpoint .......................................... 34Hot Start Load Limit Setpoint ................................................ 34Low Ambient Pump Override Temp....................................... 34Low Ambient Comp Lockout Temp ........................................ 34Leaving Solution Setpoint Source ......................................... 34Ice Building Terminate Setpoint Source ................................ 35Hot Start Load Limit Setpoint Source ................................... 35Capacity Limit Setpoint Source ............................................. 35

3 Setup Menu ........................................................ 233.1 Language Selection and Unit of Measure ...................... 233.2 Local/Remote Control and Unit Address ....................... 233.3 General Unit Functions Setup Submenu ....................... 23

Reduce Multi-Unit Startup Power Demand, AfterPower-Up, Delay Unit Start ................................................... 23Demand Limit Definition ........................................................ 24Compressor Lead/Lag Function Enable/Disable .................. 24Hot Gas Bypass Function Enable/Disable ............................ 24Hot Gas Bypass Max Run Time ............................................ 24Hot Start Time Interval ........................................................... 24

4

Table of ContentsCkt 1 Suction Line Pressure Transducer, 0 PSIG and 100PSIG Voltages ....................................................................... 32Ckt 1 Liquid Line Pressure Transducer, 0 PSIG and 400 PSIGVoltages ................................................................................. 32Ckt 1 Suction Line Pressure Transducer, 0 PSIG and 400PSIG Voltages ....................................................................... 32Ckt 2 Liquid Line Pressure Transducer, 0 PSIG and 400 PSIGVoltages ................................................................................. 32Ckt 2 Suction Line Pressure Transducer, 0 PSIG and 400PSIG Voltages ....................................................................... 32

3.10 Control Algorithm Tuning Parameters ......................... 32Comfort Cooling, Design Delta Temperature Setpoint ......... 32Comfort Cooling, Control Response Setpoint ....................... 33Process Cooling Control Gains, Proportional and Reset Time 33Process Cooling Control Gains, Proport Bias and Max CycleRate ....................................................................................... 33Low Ambient Fan Control Gain, Proportional and Reset Time . 33Low Ambient Fan Control Gain, Rate Time .......................... 33

4 Configuration Menu .......................................... 36Configuration - Model Num Digit 5,6,7 Capacity (tonnage) .. 36Configuration - Model Num Digit 8 Line Voltage .................. 36Configuration - Model Num Digit 11 Ice Building Control ..... 36Configuration - Model Num Digit 11 Leaving SolutionSetpoint Range ...................................................................... 36Configuration - Model Num Digit 13+ Hot Gas Bypass Option ... 36Configuration - Model Num Digit 13+ Voltage/Phase Monitor ..... 36Configuration - Model Num Digit 13+ GBAS 0-5VDC Module .... 36Configuration - Model Num Digit 13+ GBAS 0-10VDC Module .. 36Configuration - Model Num Digit 13+Superheat/Subcool Module ........................................................... 37Configuration - Model Num Digit 13+ Current Sensing Module .. 37Configuration - Model Num Digit 13+ TCICommunications Module ............................................................... 37Configuration - Model Num Digit 13+ Remote Human Interface 37Software Revision Number Report, Cold Generator Module(CGM) .................................................................................... 37Software Revision Number Report, Single CompressorModule (SCM) ........................................................................ 37Software Revision Number Report, Multiple CompressorModule (MCM) ....................................................................... 37Software Revision Number Report, GBAS 0-5VDC Module 37Software Revision Number Report, GBAS 0-10VDC Module37Software Revision Number Report, Superheat/SubcoolModule (SSM) ........................................................................ 37Software Revision Number Report, Current Sensing Module(CSM) ..................................................................................... 38Software Revision Number Report, Unit Human Interface (HI)38Software Revision Number Report, Remote Human Interface(RHI) ...................................................................................... 38Software Revision Number Report, TCI4 CommunicationsModule (TCI) .......................................................................... 385 Service Mode Menu ....................................... 39�� Liquid Line Solenoid Valve Ctrl Relays, Ckt 1 and Ckt 2 ...... 39Low Ambient LPC Bypass Relay(s), Ckt 1 and Ckt 2 ........... 39CGM Hot Gas Bypass Control Relay .................................... 39Compressor Relays, K11 and K12 or K11,K12, K3 and K4 .. 40Condenser Fan Outputs, 1A, 1B and 1C .............................. 40Condenser Fan Outputs, 2A, 2B and 2C .............................. 40Condenser Fan Speed, Ckt 1 and Ckt 2 ............................... 40CGM Alarm Output ................................................................ 40MCM Heater Tape Relay K13 ................................................ 40CGM Ice Build Relay Output ................................................. 41GBAS 0-5VDC Module Relay Outputs 1-5 ........................... 41GBAS 0-10VDC Module Relay Output ................................. 41GBAS 0-10VDC Module Analog Outputs 1 and 2 Voltages . 41GBAS 0-10VDC Module Analog Outputs 3 and 4 Voltages . 41CGM ICS Controlled Relay ................................................... 41

Index .......................................................................................... 65

Hot Operation Response Option ........................................... 24Pumpdown Function Enable/Disable .................................... 24Default Chiller Solution Pump Mode ..................................... 24Evap Soln Pump Off Delay Time ........................................... 25Loop Stabilization Time ......................................................... 25Low Ambient Compressor Lockout Enable/Disable .............. 25Leaving Solution Reset Type ................................................ 25Reset Start and End Temperatures ....................................... 25Reset Maximum Amount Applied .......................................... 25Chiller Application (Comfort or Process Cooling) ................. 25

3.4 Ice Building Control Functions Submenu ..................... 26Ice Building Function Enable/Disable and Ice Building Mode(Once or Continuous) ............................................................ 26Ice Build Delay Time (Between Cycles) ................................ 26

3.5 Head Pressure Ctrl Setup Submenu .............................. 26Saturated Condenser Temp Control Band, Lowerand Upper Limits ................................................................... 26Saturated Condenser Temp Control Band, Temporary LowLimit Suppression .................................................................. 27Saturated Condenser Temperature, Efficiency Check Point 27Saturated Condenser Temperature,Low Ambient Control Point .................................................... 27Saturated Condenser Temperature, Low Ambient ControlDeadband .............................................................................. 27Saturated Condenser Temperature, OA Temp SupressionSetpoint .................................................................................. 27

3.6 GBAS 0-5VDC Module I/O Assignment .......................... 27GBAS (0-5VDC) Analog Input 1 Assignment ........................ 27GBAS (0-5VDC) Analog Input 2 Assignment ........................ 27GBAS (0-5VDC) Analog Input 3 Assignment ........................ 27GBAS (0-5VDC) Analog Input 4 Assignment ........................ 27GBAS (0-5VDC) Binary Output 1 Definition ......................... 28GBAS (0-5VDC) Output 1 Alarm Assignments ..................... 28Assign Diag to GBAS (0-5V) Output 1 .................................. 28GBAS (0-5VDC) Binary Output 2 Definition ......................... 29GBAS (0-5VDC) Output 2 Alarm Assignments ..................... 29Assign Diag to GBAS (0-5V) Output 2 .................................. 29GBAS (0-5VDC) Binary Output 3 Definition ......................... 29GBAS (0-5VDC) Output 3 Alarm Assignments ..................... 29Assign Diag to GBAS (0-5V) Output 3 .................................. 29GBAS (0-5VDC) Binary Output 4 Definition ......................... 29GBAS (0-5VDC) Output 4 Alarm Assignments ..................... 29Assign Diag to GBAS (0-5V) Output 4 .................................. 29GBAS (0-5VDC) Binary Output 5 Definition ......................... 29GBAS (0-5VDC) Output 5 Alarm Assignments ..................... 29Assign Diag to GBAS (0-5V) Output 5 .................................. 29

3.7 GBAS 0-10VDC Module I/O Assignment ........................ 29GBAS (0-10VDC) Analog Input 1 Assignment ...................... 29GBAS (0-10VDC) Analog Input 2 Assignment ...................... 29GBAS (0-10VDC) Analog Input 3 Assignment ...................... 29GBAS (0-10VDC) Analog Input 4 Assignment ...................... 29GBAS (0-10VDC) Binary Output Definition .......................... 29GBAS (0-10VDC) Output Alarm Assignments ...................... 29Assign Diag to GBAS (0-10V) Output ................................... 30GBAS (0-10VDC) Analog Output 1 Definition ....................... 30GBAS (0-10VDC) Analog Output 2 Definition ....................... 30GBAS (0-10VDC) Analog Output 3 Definition ....................... 30GBAS (0-10VDC) Analog Output 4 Definition ....................... 30GBAS (0-10VDC) Analog Output 5 Definition ....................... 30

3.8 CGM Alarm Output Disagnostic Assignments .............. 30Assign Diagnostic to CGM Alarm Output .............................. 30

3.9 Device Characteristics Setup Definitions ...................... 31Actuator Setup, Ckt 1 Low Ambient Output, Max Stroke Time 31Actuator Setup, Ckt 1 Low Ambient Output, Min Voltage ..... 31Actuator Setup, Ckt 1 Low Ambient Output, Max Voltage .... 31Actuator Setup, Ckt 1 Low Ambient Output,Direct/Reverse Acting ............................................................ 31Actuator Setup, Ckt 2 Low Ambient Output, Max Stroke Time 31Actuator Setup, Ckt 2 Low Ambient Output, Min Voltage ..... 31Actuator Setup, Ckt 2 Low Ambient Output, Max Voltage .... 31Actuator Setup, Ckt 2 Low Ambient Output,Direct/Reverse Acting ............................................................ 32

5

General InformationModel Number Description

All Trane products are identified by a multiple-charactermodel number that precisely identifies a particular type ofunit. An explanation of the alphanumeric identification codeis provided below. Its use will enable the owner/operator, in-stalling contractors, and service engineers to define the op-

eration, specific components, and other options for any spe-cific unit.

When ordering replacement parts or requesting service, besure to refer to the specific model number, serial number,and DL number (if applicable) stamped on the unit name-plate.

Sample Model Number: CGAF - C30 4 A A B 0 D etc.Digit Number: 1,2,3,4 5,6,7 8 9 10 11 12 13 +

Digit 1,2 - Unit Function Digit 9 - Heating Capacity Digit 13, etc. MiscellaneousCG = Cold Generator A = Standard A = Communications Interface (TCI)

B = No Unit Heat Tape (50 Hz Units Only)Digit 3 - Unit Type Digit 10 - Design Sequence C = Compressor Current Sensing (CSM)A = Air-Cooled Condenser H = Brazed Plate Chiller D = Non-Fused Unit-Mounted Disconnect

E = *Unit Isolators - Neoprene P/SDigit 4 - Development Sequence Digit 11 - Leaving Water Setpoint F = *Unit Isolators - Spring P/SF = Sixth A = 40 - 50 F w/o Ice Machine G = Superheat / Subcooling

B = 30 - 39 F w/o Ice Machine H = Hot Gas BypassDigit 5,6,7 - Nominal Capacity D = 51 - 65 F w/o Ice Machine J = Generic BAS Module 0-5 VDC Input, Binary O.PC20 = 20 Tons E = 20 - 29 F w/o Ice Machine K = Stock UnitC25 = 25 Tons 1 = 40 - 50 F w Ice Machine L = LonTalk® Communication Interface ModuleC30 = 30 Tons 2 = 30 - 39 F w Ice Machine M = *Remote Human InterfaceC40 = 40 Tons 3 = 51 - 65 F w Ice Machine N = Generic BAS Module 0-10 VDC Analog OutputC50 = 50 Tons 4 = 20 - 29 F w Ice Machine P = Remote Setpoint Potentiometer P/SC60 = 60 Tons S = Special Q = *Zone Sensor (Chilled Solution Reset) P/S

S = SpecialDigit 8 - Power Supply V = Copper Fin Condenser Coil E = 200/60/3 P/S*** W = **Electronic Low Ambient Dampers P/S F = 230/60/3 Y = *Inter-Processor Comm Bridge (IPCB)4 = 460/60/3 P/S*** 9 = Packed Stock Unit5 = 575/50/3 Digit 12 - Agency Approval * = Field Installed Options9 = 380/50/3 0 = None ** = Factory or Field Installed OptionD = 415/50/3 1 = UL/CSA *** Available on Pack Stock UnitsS = Special

Unit NameplateOne Mylar unit nameplate is located on the outside upperleft corner of the control panel door. It includes the unitmodel number, serial number, electrical characteristics,weight, refrigerant charge, as well as other pertinent unitdata. A small metal nameplate with the Model Number, Se-rial Number, and Unit Weight is located just above the Mylarnameplate, and a third nameplate is located on the inside ofthe control panel door.

Hazard Identification

WARNING – Indicates a potentially hazardoussituation which, if not avoided, could result in death orserious injury.

CAUTION – Indicates a potentially hazardoussituation which, if not avoided, may result in minor ormoderate injury. It may also be used to alert againstunsafe practices.

CAUTION - Indicates a situation that may result inequipment or propertydamage only accidents.

Commonly Used Acronyms

For convenience, a number of acronyms and abbreviationsare used throughout this manual. These acronyms are al-phabetically listed and defined below.

A/D = Analog/DigitalBAS = Building Automation SystemCAR = Circuit shuwdown - Auto ResetCf = Evaporator limit control integratorCGA = Air cooled - Cold GeneratorUCM = Cold generator module. Contains I/O for most

chilled solution functions.Comp(s) = compressor(s)Cond = condenserCkt = circuitCLE = Chilled solution flow integratorCMR = Circuit shutdown - Manual ResetCRS = Control response setpointCSA = Canadian Standards AssociationCCW = counterclockwiseCW = clockwiseDBZ = Width of Dead Band ZoneDDT = Design Delta-T setpointDelta T = The temperature difference between EST & LSTDiag = diagnosticsEST = Entering solution temperatureEnt = Entering

Echelon, LON, LONWORKS, LonBuilder, NodeBuilder, LonManager, LonTalk, LonUsers, Neuron, 3120, 3150, the Echelon logo, and the LonUsers logo aretrademarks of Echelon Corporation registered in the United States and other countries. LonLink, LonResponse, LonSupport, LonMaker, and LonPoint aretrademarks of Echelon Corporation.

6

General InformationEvap = EvaporatorExt = ExternalGBAS = Generic Building Automation System Modulegfm = gallons per minuteHGBP = Hot gas bypassHI = Human InterfaceHO = History OnlyHSLLS = Hot Start Load Limit setpointHVAC = Heating, Ventilation and Air ConditioningIAR = Information only Auto ResetIBTS = Ice Build Terminate SetpointICS = Integrated Comfort SystemIFW = Informational WarningINFO = Information Only [Diagnostic]I/O = Inputs/outputsIOM = installation/operation/maintenance manualIPC = Interprocessor communicationsIPCB Module = Interprocessor communications bridge

moduleIRDT = Ice Rebuild Delay TimerLCD = Liquid Crystal DisplayLCI = LonTalk® Communication InterfaceLCI-I = LonTalk® Communication Interface for IntellipakLED = Light Emitting DiodeLH = left-handLonTalk = An open, device networking communications

protocol for controls. This protocol is defined in ANSIapproved standard EIA/CEA-709.1-A-1999.

LSC = Low Solution Temperature Cutout SetpointLPC = Low Pressure Cutout [Switch]LST = Leaving solution temperatureMAR = Machine shutdown - Auto ResetMax = maximumMCM = Multiple circuit compressor moduleMin = minimumMisc = miscellaneousMMR = Machine shutdown - Manual ResetMod = moduleMon = monitorNCS = Number of capacity stepsnum = numberOA = Outdoor airOAT = Outdoor air TemperaturePAR = Partial System Disable, Auto Reset [Diagnostic]PMR = Partial System Disable, Manual Reset [Diagnostic]PRT = Pump Run TimerPSIG = pounds-per-square-inch gauge pressurePWM = Pulse width modulatedRAM = Random Access MemoryRTM = rooftop moduleROM = Read Only MemoryS/W = SoftwareSat - saturatedSCM = single circuit compressor moduleSCT = Saturated Condensing TemperatureSoln = solutionSTP = setpointTCI Module = Trane communications interface moduleTemp = temperatureUCM = Unit Control ModulesUL = Underwriter's LaboratoriesVFD = Variable Frequency Drivew.c. = water columnXL = across-the-line start

Glossary of TermsCarefully review these definitions since they are usedthroughout this document and the I.O.M.. Knowledge ofthese terms is essential in gaining an understanding of howthese units operate.

Active SetpointThe setpoint which is currently being used for control bythe setpoint source selection.

Comm3Trane proprietary network communication protocol.

Comm5Trane’s implementation of LonTalk (an open networkcommunication protocol.)

Chilled Solution Temperature ResetA function that shifts the Leaving Solution Temp Setpointan amount based on the value of another parameter—typically ZoneTemp, Entering Solution Temp or OutdoorAir Temp. The purpose of this function is to lower unit ca-pacity to better meet load requirements.

Compressor Protection SwitchA pressure switch installed on the suction line that pre-vents compressor operation below the switch's setpoint.

Control BandThe range of temperatures or pressures which wouldnormally be maintained by the various control functions.

Control PointThe value of a setpoint that an algorithm is using at anygiven time.

DeadbandAs applied to LST control, this refers to a range of tem-peratures equally spaced above and below the CSS inwhich the control algorithm is satisfied. There is not ad-justment of machine capacity within the deadband.

Emergency StopUCM binary input. Can be used for emergency shutdownof the unit by field-installed contacts. A diagnostic is pro-duced when this input is open.

External Auto/StopA binary input on the UCM that allows the use of a field-supplied switch to perform normal unit on/off action.

Leaving Solution SetpointActive leaving solution setpoint. This setpoint is the con-trol setpoint for process and comfort cooling.

Leaving Solution Temperature Control PointThe revised temperature setpoint after chilled solutiontemp reset has been applied.

LonTalk©An open, device networking communications protocol forcontrols. This protocol is defined in ANSI approved stan-dard EIA/CEA-709.1-A-1999.

Low Ambient Compressor LockoutA function which prevents compressor operation at lowoutdoor ambient temperatures.

Remote Human InterfaceA human interface module designed to be mounted re-motely from the unit. There will be some functional differ-ences between a unit mounted and a remote mountedhuman interface module.

Reset Amount MaximumThe maximum amount of reset allowed.

Reset End TemperatureThe temperature at which the maximum reset amountwill occur.

Reset Start TemperatureThe temperature at which reset will begin.

Unit Control ModuleThis term is used to describe the set of electronic mod-ules which make up the unit control system.

7

General InformationUCM Control System

Trane Large Commercial Cold Generator Units are con-trolled by a microelectronic control system that consists of anetwork of modules and are referred to as Unit ControlModules (UCM).

The unit size, peripheral devices, options, etc... determinethe number and type of modules that a particular unit mayemploy.

The UCM receives analog and binary inputs, then pro-cesses this information and supplies outputs in the form ofmodulating voltages, contact closures, etc... to controldamper actuators, fan motors, compressors, valves, andother electrical devices in the system to maintain set tem-perature levels.

The UCM provides some equipment protection functionsboth directly and indirectly, such as chilled water flow andcompressor lockouts.

Listed below are the various modules that may be em-ployed in a UCM control system.

Cold Generator Module (1U48) (CGM - Standard)The Cold Generator Module (CGM) responds to cooling re-quests by energizing the proper unit components based oninformation received from other unit modules, sensors, re-mote panels, and customer supplied binary inputs. It ini-tiates unit operation based on that information.

Compressor Module (1U49) (MCM)The Compressor module, (Single Circuit & Multiple Circuit),upon receiving a request for mechanical cooling, energizesthe appropriate compressors and condenser fans. It moni-tors the compressor operation through feedback informationit receives from various protection devices. It also providesheat tape output control for heat exchanger protection.

Interprocessor Communications Board (1U55) (IPCB -used with Optional Remote Human Interface)The Interprocessor Communication Board expands commu-nications from the unit’s UCM network to a Remote HumanInterface Panel. DIP switch settings on the IPCB module forthis application should be; Switches 1 and 2 “Off”, Switch 3“On”.

Trane Communications Interface Module (1U54) (TCI -Optional - used with Trane ICS™)The Trane Communication Interface module expands com-munications from the unit’s UCM network to a Trane Tracer100™ or a Tracer Summit™ system and allows externalsetpoint adjustment and monitoring of status and diagnos-tics.

DIP Switch settings on the TCI module for these applica-tions should be:Switches 1, 2, and 3 are “Off”

Generic Building Automation System Module (1U51 =GBAS 0-5V, 1U98 = GBAS 0-10V) (Optional - used withNon-Trane Building Control System)The Generic Building Automation System (GBAS) moduleallows a non-Trane building control system to communicatewith the unit and accepts external setpoints in form of ana-log inputs (0 - 5 DCV or 0 - 10 DCV depending on the mod-ule selected) and a binary Input for demand limit. Five (5)binary outputs are available on 0 - 5 DCV modules. One (1)binary output and four (4) analog outputs are available onthe 0 - 10 DCV modules. Refer to the “Field Installed Con-trol Wiring” section for the control wiring to the GBAS mod-ule and the various desired setpoints with the correspond-ing DC voltage inputs.

Lontalk Communication Interface Module (1U54)(LCI Optional - used on units with Trane ICS™ or 3rd partyBuilding Automation Systems)The LonTalk Communication Interface module expandscommunications from the unit’s UCM network to a TraneTracer Summit™ or a 3rd party building automation system,that utilizes LonTalk, and allows external setpoint and con-figuration adjustment and monitoring of status and diag-nostics.

Current Sensing Module (1U90) (CSM - Optional)Current transformers located around two (2) of the mainpower leads for each compressor monitors the running cur-rent during compressor operation. The information is sent tothe UCM and can be accessed through the “CompressorStatus” submenu displayed at the Human Interface Module.

Superheat & Subcooling Module (1U91) (SSM -Optional)Monitors the system operating superheat and subcoolingthrough the use of pressure transducers, liquid line, andsuction line temperature sensors. The information is sent tothe SSM and can be accessed through the “CompressorStatus” submenu displayed at the Human Interface Module.

Power Disconnecting Switches

Manual Disconnect Switch(Optional 1S14) Manual disconnect switch 1S14, located inthe unit control panel, instead of the power terminal block1TB1, allows the operator to disconnect power from theunit's “high” voltage (200V-575V) section, the 115V section,and the 24V section without having to open the controlpanel door. A description of its features and operation aregiven in the Installation, Operation, & Maintanence manual.

115V Control Circuit Switch (1S1)Control circuit switch (1S1) is provided on all units and is lo-cated downstream of the 115V transformer 1T1. It allowsthe operator to disconnect power from the unit's 115V con-trol components by placing the switch in the "Off" position.

24V Transformer Switch (1S70)Transformer switch 1S70 is provided on all units and is lo-cated downstream of 24V transformers 1T2 and 1T3. It al-lows the operator to disconnect (24V) power from all of theunit's control modules by placing the switch in the "Off" po-sition.

For a complete description of the 24V components and op-eration, refer to the latest edition of the applicable Installa-tion, Operation and Maintenance manual listed on the unitnameplate.

8

General InformationGeneral Operation

At power-up, the Human Interface LCD will display one ofthree initial screens illustrated in the "General Status" sec-tion.

1. Unit Status (Unit Off or Stopped) (The unit is configuredand operational, but is not running). This screen showsstate, mode, and function information when the unit is offor stopped.

2. Unit Status (Unit On) (The unit is configured and opera-tional, and is running). This screen shows state, mode,and function information when the unit is on.

3. No Configuration (the unit needs to be configured). Thisscreen shows that required configuration data is missing.

The LCD screen has a backlight that makes the informationeasier to read. The light will go out if no keys are pressedfor 30 minutes. If it goes out, simply press the STATUS key.

Human Interface Module

(1U65 = Local 6U66 = Remote)The Human Interface (HI) Module illustrated in Figure 1 isthe device which enables the customer, building owner, orcontractor, to communicate to the unit the necessary pa-rameters for unit operation.

The local (unit mounted) Human Interface and the RemoteHuman Interface Panels’ functions are identical, except forService mode which is not available on the Remote HumanInterface Panel.

The local HI Module is located in the unit’s main controlpanel. A small door located in the unit’s control panel doorallows access to the HI Module’s keypad and display win-dow.

There is a 2 line by 40 character LCD screen which pro-vides status information for the various unit functions aswell as menus used to set or modify the operating param-eters. There is a 16 key keypad adjacent to the LCD screenwhich allows the operator to scroll through the variousmenus and make adjustments to the setpoints, etc...

The information displayed in the LCD window will be toplevel unit status information unless the operator initiatesother displays.

Figure 1Human Interface Module

9

General InformationMenu Keys

The six keys illustrated in Figure 2 in the MENU area (STA-TUS, SETPOINTS, SETUP, CONFIGURATION, DIAGNOS-TICS, and SERVICE MODE) are used to bring up the vari-ous interactive menus where the user inputs and accessesunit operating data. Pressing these keys will display the ini-tial screen for the menu designated by the key’s name. Thefollowing information describes the keys and their functionswhen viewing the various menus.

If no key is pressed for 30 minutes while the LCD is display-ing a menu screen, it will revert back to the unit operatingstatus screen.

Figure 2Human Interface Keypad

STATUS KeyPressing the STATUS key causes the LCD to display theoperating status screen; i.e. "On", "Unit Stop", "ExternalStop", "Emergency Stop", "Service Mode". Pressing theNEXT key allows the operator to scroll through the screenswhich provide information such as air and refrigerant tem-peratures, pump operation, compressor operation, as wellas active cooling and compressor lockout setpoints. Press-ing the STATUS key while viewing any of the data screenswill cause the LCD to go back to the operating statusscreen.

SETPOINTS KeyPressing the SETPOINTS key will cause the LCD screen todisplay the first of the setpoint screens where the operatorwill designate default temperature setpoints and setpointsource information. While scrolling through the setpointscreens, pressing this key again will cause the LCD to dis-play the first setpoint screen.

DIAGNOSTICS KeyPressing the DIAGNOSTICS key at any time will allow theoperator to view any unit function failures. The LCD screenwill display one of the diagnostic screens (depending onwhich diagnostic, if any, is present). If no key is pressed for30 minutes while the screen is displaying diagnostic infor-mation, it will revert back to the operating status display.

CONFIGURATION KeyPressing the CONFIGURATION key will cause the LCDscreen to display the first of the configuration screenswhere the operator will designate unit configuration datasuch as unit type, capacity, installed options, etc...

This information was programmed at the factory. Pressingthe configuration key at any level in the configuration menuwill display the first configuration screen.

Note: This key should be used if the unit'sconfiguration data is lost or new options are addedin the field, and to view current configuration.

SETUP KeyPressing the SETUP key will cause the LCD screen to dis-play screens where the operator will designate various op-erating parameters such as temperature ranges, limits, per-centages, etc. for the control of the unit’s various operatingmodes. Pressing the SETUP key at any level in the SETUPmenu will display the first SETUP screen.

SERVICE MODE KeyPressing the SERVICE MODE key causes the LCD to dis-play the first of the service test mode screens showing vari-ous unit components which may be turned on or off for theparticular test being performed. Once the status of thesecomponents is designated, the LCD will display screensthat allow the operator to designate the TEST START timedelay for each test.

Data Manipulation Keys

The six data manipulation keys illustrated inFigure 2, (EN-TER, CANCEL, + (Plus), - (Minus), PREVIOUS, and NEXTare used to modify the data within the screens (change val-ues, move the cursor, confirm choices, etc...)

ENTER KeyThis key will confirm the new values that were designatedby pressing the + (Plus) or - (Minus) keys at all edit points.When viewing status and diagnostics screens, it has nofunction.

CANCEL KeyAfter changing data, at an editable screen, but before con-firming it with the ENTER key, pressing the CANCEL keywill return the data to its previous value. This key shall alsofunction to clear active diagnostics.

10

General InformationSTOP KeyPressing the STOP key will cause the unit to transition tothe stop state. If the current display is editable, pressing theSTOP key will cancel the desired edit.

TEST START Key (SERVICE)Pressing this key while viewing any screen in the SERVICEMode menu will start the service test. When viewing status,setup, setpoint, and diagnostics screens, it has no function.

CUSTOM KeyThe Custom menu is simply a status menu that containsscreens that the user monitors most frequently. The Custommenu can only contain five status screens. To create theCustom menu, press the STATUS key, followed by theNEXT key (this brings up the initial status screen). If youwant to add this screen to the Custom menu, press the +(Plus) key, if not, press the Next key again until a statusscreen appears that you would like to add to the Custommenu. Pressing the + (Plus) key while viewing any of thevarious status screens will add that screen to the Custommenu. Once the Custom menu is programed it can be ac-cessed by pressing the CUSTOM key. To remove a statusscreen from the Custom menu, press the CUSTOM key,then press the NEXT key until the status screen that youwant to remove appears, then press the - (Minus) key.

+ (Plus) KeyWhen viewing a setpoint screen, this key will increase thetemperature or pressure value of the setpoint. When work-ing with a status menu, it will add the current status displayto the custom menu. When viewing the setup or service testscreens, it will increase setpoints or toggle choices On orOff at each edit point.

- (Minus) KeyThis key when viewing the setpoint screen will decrease thetemperature or pressure value of the setpoint. When view-ing the setup or service test screens, it will decreasesetpoints or toggle choices On or Off at each edit point.When viewing the custom menu, pressing the - (Minus) keywill remove the status screen from the custom menu. Whenviewing diagnostics screens it has no function.

PREVIOUS KeyPressing the PREVIOUS key causes the LCD to scrollbackwards through the various displays for each menu. Atdisplays with multiple edit points, it moves the cursor fromone edit point to another.

NEXT KeyPressing the NEXT key causes the LCD to scroll forwardthrough the various displays for each menu. At displayswith multiple edit points it moves the cursor from one editpoint to another.

Unit Operation Keys

AUTO KeyPressing the AUTO key at any time will cause the display togo to the top level status display and, if the unit is shut-down, will cause the unit to begin operation in the appropri-ate mode no matter what level in the menu structure is cur-rently being displayed. If the current display is an editabledisplay, the AUTO key will confirm the desired edit.

After adding a screen to the Custom menu, the followingscreen is displayed:

“Item Added to Custom Menu”

If the + (PLUS) key is pressed and the Custom menu is full,the following screen is displayed:

“Custom Menu Is Full”

After deleting a screen from the Custom Menu, the follow-ing screen is displayed:

“Item Deleted from Custom Menu”

If the CUSTOM key is pressed and there are no entries, thefollowing screen is displayed:

No items are selected for Custom Report See Operators Manual to select entries

11

General InformationGeneral Status Display

Anytime the unit is powered up, or the STATUS, AUTO, or STOP keys are pressed, the unit mounted Human Interface willdisplay one of the following three general status display screens. The operator will then be able to enter keystrokes whichwill allow him to navigate through a set of menus and submenus in order to provide/access various monitoring, setup, andconfiguration infromation. The Human Interface will not display screens or parts of screens for which the unit is not config-ured.

Unit "Off" or "Stopped"If at power up the unit is not running, the following display will appear on the Human Interface LCD screen. When this screenis being displayed, the only functional keys are the six menu keys (STATUS, SETPOINTS, DIAGNOSTICS, SETUP, CON-FIGURATION, AND SERVICE MODE), the AUTO key, the CUSTOM key, and the STOP key.

Mode of Operation(Blank)

(On)(Off)

Top Level State(External Stop)(Emergency Stop) Trouble Indicator(Unit Shutdown) (Diagnostics)(Unit Stop) (Blank)

_______________ Solution Pump _____

Unit "On"If the unit has entered an operating state (running), the following display will appear on the Human Interface LCD screen.When this screen is being displayed, the only functional keys are the six menu keys (STATUS, SETPOINTS, DIAGNOS-TICS, SETUP, CONFIGURATION, AND SERVICE MODE), the AUTO key, the CUSTOM key, and the STOP key.

Mode of Operation(Cool 0)

(Hot Gas Bypass)(Cool 1)(Cool 2) (On)(Cool 3) (Off)(Cool 4)

(Flow SW State Fail)*

Top Level State(Service Mode On) Ice Building Complete(Comfort Cooling) Ice Rebuild Delay Trouble Indicator(Process Cooling) Unit Standby (Diagnostics)(Ice Building) (Blank)(Loop Stabilization)

*Service Test Mode Only - Flow switch failed to open after solution pump turned off.

_______________ Solution Pump _____ ____________________ ____________________

No ConfigurationIf at power up the unit has not been programmed with the necessary configuration data for normal unit operation, the follow-ing display will appear on the Human Interface LCD screen. When this screen is being displayed, the only functional key isthe CONFIGURATION key.

No Configuration Present Press Configuration Key

Note: This screen will only appear when the CGM has been field replaced. Refer to the Configuration Menu.

12

General InformationFactory Presets

The CGM controlled unit has many operating functionswhose settings are preset at the factory, but may be modi-fied to meet the unique requirements of each job. The fol-lowing list identifies each of the unit's adjustable functionsand the value assigned to it. If these factory presets matchyour application's requirements and the"System Start-Upprocedures in the Installation, Operation & Maintyenancemanual has been completed, simply press the AUTO key atthe Human Interface module to begin unit operation.

If your application requires different settings, turn to thelisted page beside the function, press the designated func-tion menu key, then press and hold the NEXT or PREVI-OUS key until its screen appears on the LCD. Once theproper screen appears, simply follow the programming in-structions given below the applicable screen in this manual.

Note: Record any changes made to the factorypreset values in the corresponding space provided.

Factory Preset Changed See page... To adjustTo to adjust Press....

SetpointsLeaving Solution Setpoint 44 deg F 34 SETPOINTSLow Ambient Compressor Lockout Temperature Setpoint 40 deg F 34 SETPOINTSHeat Tape Temperature Setpoint 40 deg F 34 SETPOINTSHot Start Load Limit Setpoint 71 deg F 34 SETPOINTSIce Building Terminate Temperature 27 deg F 34 SETPOINTSLow Solution Cutout Temperature 35 deg F 34 SETPOINTSLow Ambient Pump Override Temperature 35 deg F 34 SETPOINTSUse Leaving Solution Setpoint From: HI STP Menu 34 SETPOINTSUse Ice Building Terminate Setpoint From: HI STP Menu 34 SETPOINTSUse Hot Start Load Limit Setpoint From: HI STP Menu 35 SETPOINTSUse Capacity Limit Setpoint From: No Source Selected 35 SETPOINTS

Information formatDisplay Text in English Language 23 SETUPDisplay Units in English 23 SETUPUnit Control Local 23 SETUPUnit Address 49 23 SETUP

General Unit Functions SetupDelay unit Start 0 Seconds 23 SETUPDemand Limit Definition None 24 SETUPHot Gas Bypass Function Disabled 24 SETUPHot Gas Bypass Max Run Time 30 Minutes 24 SETUPHot Start Time Interval 60 Minutes 24 SETUPHot Operation Response Option 50% Capacity

(Auto Reset Diag.) 24 SETUPPumpdown Function Disabled 24 SETUPCompressor Lead/Lag Function Disabled 24 SETUPDefault Chiller Solution Pump Mode Auto 24 SETUPEvaporator Solution Pump Off Delay Time 30 Seconds 25 SETUPLoop Stabilization Time 120 Seconds 25 SETUPLow Ambient Compressor Lockout Enabled 25 SETUPLeaving Solution Reset Type None 25 SETUPChiller Application Comfort 25 SETUPEvaporator Solution Flow Switch Proving Disabled 25 SETUPOA Temp Reset Type: Start Temp 70 deg F 25 SETUPOA Temp Reset Type: End Temp 50 deg F 25 SETUPOA Temp Reset Type: Max Amount of Reset 5 deg F 25 SETUPZone Temp Reset Type: Start Temp 78 deg F 25 SETUPZone Temp Reset Type: End Temp 75 deg F 25 SETUPZone Temp Reset Type: Max Amount of Reset 5 deg F 25 SETUPEntering Solution Temp Reset Type: Start Temp 45 deg F 25 SETUPEntering Solution Temp Reset Type: End Temp 40 deg F 25 SETUPEntering Solution Temp Reset Type: Max Amount 5 deg F 25 SETUP

13

General InformationFactory Presets (Continued)


Ice Building Control FuctionsIce Building Function Disabled 26 SETUPIce Building Mode One Time 26 SETUPIce Rebuild Delay Time 360 Minutes 26 SETUP

GBAS 0-5 VDC Module I/O AssignmentsGBAS (0-5 VDC) Analog Input 1 Assignment Not Assigned 27 SETUPGBAS (0-5 VDC) Analog Input 2 Assignment Not Assigned 27 SETUPGBAS (0-5 VDC) Analog Input 3 Assignment Not Assigned 27 SETUPGBAS (0-5 VDC) Analog Input 4 Assignment Not Assigned 27 SETUPGBAS (0-5 VDC) Binary Output 1 Definition Indicate any comp

is running 28 SETUPGBAS 0-5 V Output 1 Alarm Assignments Any active diagnostic 28 SETUPGBAS (0-5 VDC) Binary Output 2 Definition Indicate selected

diagnostics 29 SETUPGBAS 0-5 V Output 2 Alarm Assignments Comp protection LPC

Open Ckt 1 29 SETUPComp protection LPC

Open Ckt 2 (40-60 Ton) 29 SETUPCompressor Trip Ckt 1 29 SETUPCompressor Trip Ckt 2

(40 - 60 Ton) 29 SETUPComp Contactor Fail Ckt 1 29 SETUPComp Contactor Fail Ckt 2

(40 - 60 Ton) 29 SETUPLow Press Control

Open - Ckt 1 29 SETUPLow Press Control

Open - Ckt 2 (40-60 Ton) 29 SETUPGBAS (0-5 VDC) Binary Output 3 Definition Indicate Unit at

Max capacity 29 SETUPGBAS (0-5 VDC) Output 3 Alarm Assignments Any active diagnostic 29 SETUPGBAS (0-5 VDC) Binary Output 4 Definition Indicate selected

diag alarms 29 SETUPGBAS (0-5 VDC) Output 4 Alarm Assignments Any active diagnostic 29 SETUPGBAS (0-5 VDC) Binary Output 5 Definition Indicate selected

diag alarms 29 SETUPGBAS (0-5 VDC) Output 5 Alarm Assignments Any active diagnostic 29 SETUP

GBAS 0-10 VDC Module I/O AssignmentsGBAS (0-10 VDC) Analog Input 1 Assignment Not Assigned 29 SETUPGBAS (0-10 VDC) Analog Input 2 Assignment Not Assigned 29 SETUPGBAS (0-10 VDC) Analog Input 3 Assignment Not Assigned 29 SETUPGBAS (0-10 VDC) Analog Input 4 Assignment Not Assigned 29 SETUPGBAS (0-10 VDC) Binary Output Definition Indicate selected

diag alarms 29 SETUPGBAS (0-10 VDC) Output Alarm Assignments Any active diagnostic 30 SETUPGBAS (0-10 VDC) Analog Output 1 Assignment Leaving solution temp 30 SETUPGBAS (0-10 VDC) Analog Output 2 Assignment Entering solution temp 30 SETUPGBAS (0-10 VDC) Analog Output 3 Assignment Active cooling capacity 30 SETUPGBAS (0-10 VDC) Analog Output 4 Assignment Outside air temperature 30 SETUP

CGM alarm output definitions Any Active Diagnostic 30 SETUP

14

General InformationFactory Presets (Continued)


Actuator Setup DefinitionsNumber 1 Low Ambient Maximum Stroke 30 seconds 31 SETUPNumber 1 Low Ambient Minimum Voltage 2.0v 31 SETUPNumber 1 Low Ambient Maximum Voltage 10.0v 31 SETUPNumber 1 Low Ambient Acting Direct 31 SETUPNumber 2 Low Ambient Maximum Stroke 30 seconds 31 SETUPNumber 2 Low Ambient Minimum Voltage 2.0v 31 SETUPNumber 2 Low Ambient Maximum Voltage 10.0v 31 SETUPNumber 2 Low Ambient Acting Direct 31 SETUPCkt 1 Suction Line Pressure Transducer -- voltage at 0 PSIG 0.118 V 32 SETUPCkt 1 Suction Line Pressure Transducer -- voltage at 100 PSIG 4.847 V 32 SETUPCkt 2 Suction Line Pressure Transducer -- voltage at 0 PSIG 0.118 V 32 SETUPCkt 2 Suction Line Pressure Transducer -- voltage at 100 PSIG 4.847 V 32 SETUPCkt 1 Liquid Line Pressure Transducer -- voltage at 0 PSIG 0.118 V 32 SETUPCkt 1 Liquid Line Pressure Transducer -- voltage at 400 PSIG 4.847 V 32 SETUPCkt 2 Liquid Line Pressure Transducer -- voltage at 0 PSIG 0.118 V 32 SETUPCkt 2 Liquid Line Pressure Transducer -- voltage at 400 PSIG 4.847 V 32 SETUP

Head Pressure Control SetupSaturated condenser Temp Control Band (Lower Limit) 85 deg F 26 SETUPSaturated condenser Temp Control Band (Upper Limit) 125 deg F 26 SETUPSaturated condenser Temp Control Band (Temporary Low Limit Suppression) 10 deg F 27 SETUPSaturated condenser Temp (Efficiency Check Point) 110 deg F 27 SETUPSaturated condenser Temp (Low Ambient Control Point) 100 deg F 27 SETUPSaturated condenser Temp (Low Ambient Control Deadband) 4.0 deg F 27 SETUPSaturated condenser Temp (OA Temp Suppression Setpoint) 40 deg F 27 SETUP

15

General InformationPassword Protected Screens

Some of the operating displays on the Human Interface LCD screen are intended to be accessed by qualified users only,and require a password to change. The following screens display the various programming sections that require a passwordin order to view or to modify the preset operating parameters. The password for each screen is a different series of + (Plus)or - (Minus) key strokes in a predefined sequence. Shown below are the password protected screens, and the passwords foraccessing them.

The following screens display the various programming sections that require aspecific PASSWORD to be entered by a qualified operator in order to view or to modify the operating parameters.

The following screen will appear if the PASSWORD is not entered within approximately 15 seconds.

1. Press the NEXT key until the following screen is displayed.

2. Press the + or - keys in this sequence ( + - - - ) to access this restricted screen.3. Press the ENTER key to confirm the password and enter the menu.4. Press the NEXT key until the following screen is displayed.

1. Press the + or - keys in this sequence ( - + + ) to access this restricted screen.2. Press the ENTER key to confirm the password and Lock the definitions.3. Press the NEXT key until the following screen is displayed.

1. Press the + or - keys in this sequence ( - + + -) to access this restricted screen.2. Press the ENTER key to confirm the password and Lock the definitions.3. Press the NEXT key until the following screen is displayed.

Password Entry Time Limit Exceeded

Configuration is Password Protected Please Enter Pasword:

Diagnostic Reset is Password Protected Please Enter Pasword:

Diagnostic Log is Password Protected Please Enter Pasword: __________

16

System Operating StatusSTATUS Menu

The STATUS menu is used to view various operating condi-tions such as temperatures and humidity levels. It’s used toview unit component status such as fan, compressor,heater, and economizer operation, as well as setpoint sta-tus.

The screens shown in this section are for example only.Pressing the + (Plus) key while viewing any of the statusdisplay screens will add that screen to the Custom menu.When a status screen is displayed for 30 minutes without akey being pressed, the LCD screen will revert to the generaloperating status display. If this happens, press the STATUSkey again to return to the status menu. The following areexamples of status screens that may be viewed by pressingthe STATUS key.

Press the STATUS key to enter into the status menu. The"STATUS MODE" will automatically return to the power up screenafter 30 minutes, if no keys are pressed.

Used on Units: All UnitsPossible Values: See "General Status" Display Description

1. Press the NEXT key to scroll forward through the status screens.2. Press the PREVIOUS key to scroll backwards to view previously displayed status screens. 3. Press the + (Plus) key while viewing any status screen to add that screen to the custom menu. Refer to the custom menu for the creation and maintenance of customized menus.

Used on Units: All UnitsPossible Values: Active Solution Setpoint = 0 - 99 F Entering = 0 - 99.9 F

OR Leaving = 0 - 99.9 FThis screen is displayed when the unit is in Ice Building.

Used on Units: All UnitsPossible Values: Active Ice Build Terminate STP = 0 - 99 F Entering = 0 - 99.9 F Leaving = 0 - 99.9 F

Note: The range for all temperature inputs are 0 to 99.9 F. "ERR" will appear if the temperature is out of range.

Used on Units: All Units

1. Press the ENTER key to advance to the following screen. 2. Press the NEXT key to bypass this menu and advance to "General Status Submenu"

Cool 0 Solution Pump Off Standby Diagnostics

Active Leaving Solution Setpoint 55.0 F Temp: Entering 55.0 F Leaving 50.0 F

Compressor Status Submenu Press ENTER to View Data in This Submenu

Active Ice Build Terminate STP 55.0 F Temp: Entering 55.0 F Leaving 50.0 F

17

System Operating Status

The following screens are displayed for 20 through 60 Ton units.

Used on Units: 20 thru 60 Ton UnitsPossible Values: K3 - On, Off, Locked, K4 - On, Off, Locked,

1. Press the NEXT key until the following screen is displayed. K11 - On, Off, Locked, or K12 - On, Off, Locked


The following screens are displayed for 40 through 60 Ton units.


Disabled By:Bad Cond Temp Sensor Hot Start OperationBad Ent Soln Sensor Low Ambient LockoutBad Leav Soln Sensor Low Leav Soln CutoutCompressor Protection Low Pressure CutoutCompressor Protect LPC LPC DelayContactor Failure Minimum Off TimeDemand/Capacity Limit Over/Under VoltageEvap Flow Protection Phase Loss/ReversalEvap Limit Control Tracer Lockout


Used on Units: All UnitsPossible Values: -40 to 200 F

1. Press the NEXT key until the following screen is displayed. The following three screens are applicable when Superheat/ Subcool Module is installed.

Used on Units: With superheat/subcool modulePossible Values: -40 to 200 F


Used on Units: With superheat/subcool modulePossible Values: Suction range 0 - 100 PSIG Liquid range 0 - 400 PSIG

1. Press the NEXT key until the following screen is displayed. Comp Off

Used on Units: With superheat/subcool modulePossible Values: 0 - 99.9 F Comp Off


The following screens are displayed for 40 through 60 Ton units.Used on Units: 40 Thru 60 Ton UnitsPossible Values: -40 to 200 F

Compressor Relay K11 Off Enabled




Compressor Module Ckt 1 Saturated Condensor Temperature 81.0 F

Refrigerant Ckt 1 - Temperature Data Suction 75.0 F Sat Liquid 81.0 F

Refrigerant Ckt 1 - Pressure Data Suction 72 PSIG Liquid 265 PSIG

Refrigerant Circuit 1 Superheat 28.0 F Subcooling 18.0 F

Compressor Module Ckt 2 Saturated Condenser Temperature 97.0 F

18

System Operating Status1. Press the NEXT key until the following screen is displayed. The following three screens are applicable when Superheat/ Subcool Module is installed.

Used on Units: 40-60 Ton Units with superheat/subcool modulePossible Values: -40 to 200 F


Used on Units: 40-60 Ton Units with superheat/subcool modulePossible Values: Suction range 0 - 100 PSIG Liquid range 0 - 400 PSIG Comp Off


Used on Units: 40-60 Ton Units with superheat/subcool modulePossible Values: 0 - 99.9 F Comp Off

1. Press the NEXT key until the following screen is displayed. Used on Units: 20, 25 & 30 Ton UnitsPossible Values: Open, Closed

ORThe following screen is displayed for 40 through 60 Ton units.

Used on Units: 40 Thru 60 Ton UnitsPossible Values: Open, Closed


Used on Units: All Units with Current Sensing Module Possible Values: 0 - 255


Used on Units: All Units with Current Sensing Module Possible Values: 0 - 255

1. Press the NEXT key until the following screen is displayed. The following screens are displayed for 40 through 60 Ton units.

Used on Units: 40-60 Ton Units with Current Sensing Module Possible Values: 0 - 255

1. Press the NEXT key until the following screen is displayed. Used on Units: 40-60 Ton Units with Current Sensing Module Possible Values: 0 - 255


2. Pressing the NEXT key will display the beginning of the Submenu.3. Press the NEXT key again to advance to the following screen.

1. Press the ENTER key until the following screen is displayed. 2. Press the NEXT key to bypass this menu and advance to "Controlling Setpoint Status Submenu"

Used on Units: All UnitsPossible Values: CGM Evap Solution Pump Relay = On, Off Evap Soln Flow Switch Proving = Flow, No Flow


General System Status Submenu Press ENTER to View Data in This Submenu

CGM Evap Solution Pump Relay: OFF Evap Soln Flow Switch Proving: FLOW



Refrigerant Circuit 2 Superheat 28.0 F Subcooling 18.0 F

Ckt 1 Liquid Line Solenoid Valve: OPEN Ckt 2 Liquid Line Solenoid Valve: CLOSED

Compressor 1A Phase Currents - Amps Phase A 86 Phase B 84

Compressor 1B Phase Currents - Amps Phase A 81 Phase C 78

Compressor 2A Phase Currents - Amps Phase B 88 Phase C 90


End of Submenu (NEXT) to Re-enter STATUS

Ckt 1 Liquid Line Solenoid Valve: OPEN

19

System Operating StatusThis screen is displayed on units with Brazed Plate.

Used on Units: All Brazed Plate UnitsPossible Values: On, Off


This screen is displayed when Hot Gas Bypass is installed.Used on Units: With Hot Gas Bypass optionPossible Values: On, Off

1. Press the NEXT key until the following screen is displayed. Used on Units: With Ice Building ControlPossible Values: On, Off


This screen is displayed when Leaving Solution Setpoint Sourceis selected.

Used on Units: With CGM Ext Leaving Soln Setpoint

Source selectedPossible Values: 0 - 99



CGM Hot Gas Bypass Control Relay: OFF

End Of Sub-Menu (NEXT) To Re-enter STATUS

CGM Ice Building Control Relay: ON

Setpoint Value MeasuredCGM Ext Leaving Soln STP Input is 44.0 F

MCM Heat Tape Control Relay: OFF

1. Press the ENTER key until the following screen is displayed. 2. Press the NEXT key to bypass this menu and advance to "Temperature Input Status Submenu"

Used on Units: All UnitsPossible Values: Human Interface STP Menu, Ext Leaving Soln STP Input, GBAS 0-10 VDC Module, GBAS 0-5 VDC Module, BAS/NETWORK Setpoint Range = 0 - 99.9 F

1. Press the NEXT key until the following screen is displayed. This screen is displayed when Ice Building is enabled.

Used on Units: With Ice Building OptionPossible Values: Human Interface STP Menu, Ext Leaving Soln STP Input, GBAS 0-10 VDC Module, GBAS 0-5 VDC Module, BAS/NETWORK (Tracer) (TCI only) Setpoint Range = 0 - 99.9 F

Active Leaving Solution Setpoint From EXT LEAVING SOLN STP INPUT is 55.0 F

Active Ice Build Terminate Setpoint From HUMAN INTERFACE STP MENU is 33.0 F

Controlling Setpoint Status Submenu Press ENTER to View Data in This Submenu

20

System Operating Status1. Press the NEXT key until the following screen is displayed.

Used on Units: All UnitsPossible Values: Human Interface STP Menu, GBAS 0-10 VDC Module, GBAS 0-5 VDC Module, Setpoint Range = 0 - 99.9 F

1. Press the NEXT key until the following screen is displayed. Used on Units: With GBAS 5V or GBAS 10V or TCI or LCIPossible Values: No Source Selected, GBAS 0-10 VDC Module, GBAS 0-5 VDC Module, BAS/NETWORK Setpoint Range = 0 - 99.9 F Blank



1. Press the ENTER key until the following screen is displayed. 2. Press the NEXT key to bypass this menu and advance to "Misc Input Status Submenu"

Used on Units: All UnitsPossible Values: -40.0 to 200 F


Used on Units: All UnitsPossible Values: -40.0 to 200 F

1. Press the NEXT key until the following screen is displayed. Used on Units: All UnitsPossible Values: -40.0 to 200 F


1. Press the NEXT key until the following screen is displayed. Used on Units: With Superheat/Subcooling installedPossible Values: -40.0 to 200 F

1. Press the NEXT key until the following screen is displayed. The following screens are displayed for 40 through 60 Ton units.

Used on Units: 40 through 60 TonPossible Values: -40.0 to 200 F

Active Hot Start Load Limit Setpt From HUMAN INTERFACE STP MENU is 78.0 F

Active Capacity Limit Setpoint From HUMAN INTERFACE STP MENU is 63 %


Temperature Input Status Submenu Press ENTER to View Data in This Submenu

Temp Measured By Sensor Connected To CGM Entering Soln Temp Input 55 F

Temp Measured By Sensor Connected To CGM Leaving Soln Temp Input 50.0 F


Temp Measured By Sensor Connected To CGM Outside Air Temp Input 86.0 F



21

System Operating StatusUsed on Units: 40-60 Ton with Superheat/Subcooling Module installedPossible Values: -40.0 to 200 F


1. Press the NEXT key until the following screen is displayed. Used on Units: With TCI Module InstalledPossible Values: -40.0 to 200 F




Temp Measured By Sensor Connected To CGM Zone Temp Input 75.0 F

Temp Measured By Sensor Connected To CGM ICS Temp Input 62.0 F


Used on Units: With Ice Building Control OptionPossible Values: Off, Make Ice

1. Press the NEXT key until the following screen is displayed. Used on Units: All UnitsPossible Values: Flow, No Flow

1. Press the NEXT key until the following screen is displayed. Used on Units: All Units with Superheat/SubcoolingPossible Values: Suction = 0.0 to 100.0 PSIG Liquid = 0.0 to 400.0 PSIG Comp Off

1. Press the NEXT key until the following screen is displayed. Used on Units: 40 - 60 Ton Units with Superheat/CoolingPossible Values: Suction = 0.0 to 100.0 PSIG Liquid = 0.0 to 400.0 PSIG Comp Off

1. Press the NEXT key until the following screen is displayed. Used on Units: With Current Sensing ModulePossible Values: 0 to 255


Used on Units: With Current Sensing ModulePossible Values: 0 to 255

CGM Ice Build Command Input: OFF

CGM Evap Soln Flow Switch Input: FLOW



Compressor 1A Phase Currents - Amps Phase A 86 Phase B 84


1. Press the ENTER key until the following screen is displayed. 2. Press the NEXT key to bypass this menu and advance to "GBAS 0-5VDC Module Status Submenu"

Misc Input Status Submenu Press ENTER to View Data in This Submenu

22

System Operating Status1. Press the NEXT key until the following screen is displayed.

Used on Units: With Current Sensing Module on 40-60 TonPossible Values: 0 to 255


Used on Units: With Current Sensing Module on 40-60 TonPossible Values: 0 to 255



This screen is displayed when GBAS 0-5 VDC Module is installed

1. Press the ENTER key until the following screen is displayed. 2. Press the NEXT key to bypass this menu and advance to "GBAS 0-10VDC Module Status Submenu"

Used on Units: With GBAS 0-5VDC ModulePossible Values: Input = 0.00 to 5.00 VDC Assignment = Not Assigned

3. Press the NEXT key to display Generic BAS Analog Input Leaving Solution Setpoint screens 2, 3, & 4. Ice Build Terminate Setpoint4. Press the NEXT key to advance to the following screen. Hot Start Load Limit Setpoint

Capacity Limit Setpoint

Used on Units: With GBAS 0-5VDC ModulePossible Values: Open, Closed

1. Press the NEXT key until the following screen is displayed. Used on Units: With GBAS 0-5VDC ModulePossible Values: Output = On, Off Assignment = Output Is Not Assigned

2. Press the NEXT key to display Generic BAS Binary Output Indicate any comp is running screens 2, 3, 4 & 5. Indicate unit at max capacity3. Press the NEXT key to advance to the following screen. Indicate selected diag alarms



1. Press the ENTER key until the following screen is displayed. 2. Press the NEXT key to bypass this menu and advance to "General Status" Display Screen.

Used on Units: With GBAS 0-10 VDC ModulePossible Values: Output = 0.00 - 10.00 VDC Assignment = Output Is Not Assigned

3. Press the NEXT key to display Generic BAS Analog Input Leaving Solution Setpoint screens 2, 3 & 4. Ice Build Terminate Setpoint4. Press the NEXT key to advance to the following screen. Hot Start Load Limit Setpoint

Capacity Limit Setpoint

Compressor 2A Phase Currents - Amps Phase B 88 Phase C 90



GBAS 0-5VDC Module Status Submenu Press ENTER to View Data in This Submenu

GBAS 0-5VDC Analog Input 1 0.00 VDC Assigned: NOT ASSIGNED

GBAS (0-5VDC) Demand Limit Input Status OPEN

GBAS (0-5VDC) Binary Output 1 OFF Assigned: OUTPUT IS NOT ASSIGNED


GBAS 0-10VDC Module Status Submenu Press ENTER to View Data in This Submenu

GBAS 0-10VDC Analog Input 1 0.00 VDC Assigned: NOT ASSIGNED

23

System Operating StatusUsed on Units: With GBAS 0-10 VDC Module

Possible Values: Open, Closed

1. Press the NEXT key until the following screen is displayed. Used on Units: With GBAS 0-10 VDC ModulePossible Values: Output = On, Off Assignment = Output Is Not Assigned Indicate selected diag alarms Indicate unit at max capacity Indicate any comp is running

1. Press the NEXT key until the following screen is displayed. Used on Units: With GBAS 0-10 VDC Module

Possible Values: 0.0 to 10.0 VDC

Assignment = Leaving solution temperature Assignment = Ckt1 liquid line pressure Entering solution temperature Ckt2 liquid line pressure Ckt1 saturated condenser temp Ckt1 sat liquid temperature Ckt2 saturated condenser temp Ckt2 sat liquid temperature Ckt1 suction temperature ICS Defined temperature Ckt2 suction temperature Outside air temperature Ckt1 suction pressure Active Cooling Capacity Ckt2 suction pressure

2. Press the NEXT key to display Generic BAS Analog Output screens 2, 3 & 4. 3. Press the NEXT key to advance to the following screen.

4. Pressing the NEXT key will display the beginning of the Submenu.5. Press the AUTO or STOP key to return to the top level status information.

GBAS (0-10VDC) Demand Limit Input Status Open

GBAS (0-10VDC) Binary Output OFF Assigned: OUTPUT IS NOT ASSIGNED


GBAS 0-10VDC Analog Output 1 0.0 VDC Assigned: NOT ASSIGNED

24

System Programming SETUPAfter the unit is installed, the CGM must be programmedwith certain setup information (chilled solution setpoints, ONand OFF times, system defaults, setpoint sources, etc...) inorder to operate and function properly. The data necessaryfor unit operation will vary depending on certain factorssuch as unit size, type, and installed options.

This section of the manual provides step by step instruc-tions for programming this information. Also provided are in-structions for checking unit operating status, accessing andclearing diagnostics, and performing service tests.

Some of the displays shown in this manual may not appearon the Human Interface (HI) LCD screen during program-ing. Only the applicable screens for the specific unit optionsand operating parameters will be displayed.

Start with the first setup screen in the SETUP menu andprogram the necessary information by completing the stepslocated below each illustrated window. Information that per-tains to when the screens are applicable, the factory presetvalues, and the possible values that may be designated islocated to the right of each programmable screen.

Ignore the steps that do not apply to your unit and applica-tion, and move on to the next applicable set of instructionsin the manual. Continue this process until all applicablescreens are programmed with the required information.

SETUP Menu

The setup menu is used to input initial operating information such as control parameters, functions enable/disable, text dis-play (language), temperature display (C or F), and system tuning parameters. When a setup screen is displayed for 30 min-utes without a key being pressed, the LCD screen will revert to the appropriate power-up display. If this happens, press theSETUP key again to return to the setup menu.

1. Press the SETUP key to display the following screen.Used on Units: AllPossible Values: Text = English, French, Spanish Units = SI, English

2. Press the + or - key until the proper "language" is displayed.3. Press the ENTER key to confirm this choice.4. Press the NEXT key to advance the cursor to the "Units"5. Press the + or - key until the proper "language" is displayed.6. Press the ENTER key to confirm this choice.

Display Text in ENGLISH LANGUAGE Display Units in ENGLISH

7. Press the NEXT key until the following screen is displayed. Used on Units: All Units when TCI or LCI installedPossible Values: Control = Local, BAS/NETWORK Address: 33 to 63 (TCI only)

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "Address" (TCI only)4. Press the + or - key until the proper value is displayed. (TCI only)5. Press the ENTER key to confirm this choice. (TCI only)6. Press the NEXT key until the following screen is displayed.

1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to the "Ice Building Control Functions Submenu".

Used on Units: All UnitsPossible Values: 0 to 255 sec

2. Press the + or - key until the proper value is displayed.3. Press the ENTER key to confirm this choice.4. Press the NEXT key until the following screen is displayed.

Unit control: LOCAL Unit Address 49

General Unit Functions Setup Submenu Press ENTER to Review or Adjust

Reduce Multi-Unit Startup Power Demand. After Power-Up, Delay Unit Start 0 Sec

25

System Programming SETUP

Used on Units: All Units with GBAS5V, GBAS10V or TCIPossible Values: None - All Units

1. Press the + or - key until the proper value is displayed. 25% - 2 Ckt Only 2. Press the ENTER key to confirm this choice. 50% - All Units 3. Press the NEXT key until the following screen is displayed. 75% - 2 Ckt Only

100% - All UnitsUsed on Units: All UnitsPossible Values: Enabled, Disabled

OR Note: Lead\Lag can not be Enabled if Hot Gas Bypass is Enabled.


Used on Units: With Hot Gas Bypass Option installedPossible Values: Enabled, Disabled

1. Press the + or - key until the proper value is displayed. Note: Hot Gas Bypass can not be Enabled if2. Press the ENTER key to confirm this choice. Lead\Lag is Enabled.3. Press the NEXT key until the following screen is displayed.

Used on Units: With Hot Gas Bypass Option installedPossible Values: 10 to 120 minutes


Used on Units: All UnitsPossible Values: 10 to 120 minutes


Used on Units: All UnitsPossible Values: 50% Capacity per ckt (Auto Reset Diag)

1. Press the + or - key until the proper value is displayed. Allow normal operation 2. Press the ENTER key to confirm this choice. (Info Reset Diag)3. Press the NEXT key until the following screen is displayed. Shut off compressors

(Manual Reset Diag)Used on Units: All UnitsPossible Values: Enable, Disable


Used on Units: All UnitsPossible Values: On, Auto

OR

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.

Demand Limit Definition: NONE Reduce cooling capacity by this amount

Compressor Lead/Lag Function: DISABLED Stage Comp(s) Up/Down in Fixed Sequence

Capacity=50% if LST exceeds Hot Strt STP During Hot Start Time Interval: 60 Min

Hot Operation Response Option: 50% CAPACITY PER CKT, AUTO RESET DIAG

Pumpdown Function: DISABLED

Default Chiller Solution Pump Mode: ON Pump Always ON Except for Emergency STOP

Hot Gas Bypass Function: DISABLED Provides Cooling Level Less Than Cool 1

Hot Gas Bypass Max Run Time 30 Min Max HGBP Duration Until Shut Off Comp

Compressor Lead/Lag Function: ENABLED 1st On = Least Starts, 1st Off = Most Runtime

Default Chiller Solution Pump Mode: AUTO Turn Pump ON As Requested By CGM Module

26


Used on Units: All UnitsPossible Values: 30 to 600 seconds




Used on Units: All UnitsPossible Values: Enable, Disable


Used on Units: All UnitsPossible Values: None - No Reset Applied Outside Air Temp Reset

1. Press the + or - key until the proper value is displayed. Zone Temp Reset2. Press the ENTER key to confirm this choice. Entering Solution Temp Reset3. Press the NEXT key until the following screen is displayed.

The following two screens will display when either OA, Zone, orENT Soln Reset is selected.

1. Press the + or - key until the proper value is displayed. Used on Units: All Units with Leaving Solution Reset2. Press the ENTER key to confirm this choice. Possible Values:3. Press the NEXT key to advance the cursor to the "End Temp" Reset Type: Outside Air Temp Reset4. Press the + or - key until the proper value is displayed. Zone Temp Reset5. Press the ENTER key to confirm this choice. Entering Soln Temp Reset6. Press the NEXT key until the following screen is displayed. Start Temp OA: 46 - 125 F

Zone: 67 - 81 F ENT Soln Temp Reset: 6 - 80 F End Temp OA: 45 - 124 F

1. Press the + or - key until the proper value is displayed. Zone: 66 - 80 F2. Press the ENTER key to confirm this choice. ENT Soln Temp Reset: 5 - 79 F3. Press the NEXT key until the following screen is displayed. Max Amount (Zone, OA, ENT Soln Temp Reset): 3 - 16 F

1. Press the + or - key until the proper value is displayed. Used on Units: All Units2. Press the ENTER key to confirm this choice. Possible Values: Comfort Cooling, Process Cooling3. Press the NEXT key until the following screen is displayed.

Evap Soln Pump Off Delay time 30 Sec Delay Pump OFF Request By This Amount

Loop Stabilization Time: 120 Sec Run Pump To Allow Soln Temp To Stabilize

Low Ambient Compressor Lockout: ENABLED Use Low Ambient Compressor Lockout STP

Leaving Solution Reset Type: NONE - NO RESET APPLIED

Select Type of Cooling Control Based On Chiller Application: PROCESS COOLING

Reset Type: Outside Air Temp Reset Start Temp 70.0 F End Temp 50.0 F

Reset Type: Outside Air Temp Reset Maximum Amount of Reset Applied 5.0 F

27


1. Pressing the NEXT key will display the beginning of the Submenu.2. Press the NEXT key again to advance to the following screen.The following screens are displayed with Ice Building Control Option.

1. To view the factory preset or to modify the factory presets to meet specific application requirements, press the ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to the "Ice Building Control Functions Submenu".

2. Press the + or - key until the proper "Function" is displayed. Used on Units: Units with Ice Building Control Option3. Press the ENTER key to confirm this choice. Possible Values: Function = Enabled, Disabled4. Press the NEXT key to advance the cursor to the "Mode" Mode = One Time, Continuous5. Press the + or - key until the proper value is displayed.6. Press the ENTER key to confirm this choice.7. Press the NEXT key until the following screen is displayed.

1. Press the + or - key until the proper value is displayed. Used on Units: Units with Ice Building Control Option2. Press the ENTER key to confirm this choice. Factory Preset: 360 Min3. Press the NEXT key until the following screen is displayed. Possible Values: 30 to 1410 Minutes


1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to the "GBAS 0-5 VDC Module I/O Assignments"

2. Press the + or - key until the proper "LowerLimit" is displayed. Used on Units: All Units3. Press the ENTER key to confirm this choice. Possible Values: Lower Limit - 70 to 90 F4. Press the NEXT key to advance the cursor to the "Upper Limit" Upper Limit - 110 to 130 F5. Press the + or - key until the proper value is displayed.6. Press the ENTER key to confirm this choice.7. Press the NEXT key until the following screen is displayed.

Ice Building Control Functions Submenu Press ENTER to Review or Adjust

Ice Building Function: DISABLED Ice Building Mode: ONE TIME

Interval Between Ice Building Cycles. Ice Rebuild Delay Time 360 Min

End of Submenu (NEXT) to Re-enter SETUP

Head Pressure Ctrl Setup Submenu Press ENTER to Review or Adjust

Saturated Condenser Temp Control Band Lower Limit 85 F Upper Limit 125 F


28

System Programming SETUPUsed on Units: All Units

Possible Values: 0 to 20 F


Used on Units: All UnitsPossible Values: 95 to 115 F


Used on Units: All UnitsPossible Values: 80 to 110 F


Used on Units: All UnitsPossible Values: 2.0 to 10.0 F


Used on Units: All UnitsPossible Values: 25 to 66 F, Disabled




1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to "GBAS 0-10 VDC Module I/O Assignments"

Used on Units: With GBAS 0-5VDC ModulePossible Values: Leaving Solution Setpoint Ice Build Terminate Setpoint

2. Press the + or - key until the proper value is displayed. Hot Start Load Limit Setpoint3. Press the ENTER key to confirm this choice. Capacity Limit Setpoint4. Press the NEXT key to display Generic BAS Analog Input 2 screen. 5. Press the + or - key until the proper value is displayed.6. Press the ENTER key to confirm each choice.7. Repeat steps 1 - 4 to display Generic BAS Analog Input screens 2, 3 & 4. 8. Press the NEXT key to advance to the following screen.

Saturated Condenser Temp Control Band Temporary Low Limit Suppression 10 F

Saturated Condenser Temperature Efficiency Check Point 110 F

Saturated Condenser Temperature Low Ambient Control Point 100 F


GBAS 0-5VDC Module I/O Assignment Press ENTER to Review or Adjust

GBAS (0-5VDC) Analog Input 1 Assignment NOT ASSIGNED

Saturated Condenser Temperature Low Ambient Control Deadband 4.0 F

Saturated Condenser Temperature OA Temp Supression Setpoint 40 F

29


1. Press the + or - key until the proper value is displayed. Used on Units: With GBAS 0-5VDC Module2. Press the ENTER key to confirm this choice. Possible Values: Not Assigned3. Press the NEXT key until the following screen is displayed. Indicate Selected Diag Alarms

Indicate Unit at Max CapacityThe following screens will display if "Indicate selected diagnostics Indicate any comp is runningalarms" is assigned to any of the 5 Binary Output Definitions.

1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key. If no adjustments are required, press the NEXT key to advance to the following screen.

2. Press the + or - key until the proper value is displayed. If "YES"

is assigned to "Any Active Diagnostic", pressing the NEXT key Used on Units: With GBAS 0-5VDC Module will advance to the Binary Output 2 Definition screen. Assigning Possible Values: Yes, No "NO" to the "Any Active Diagnostic" will advance to the selectable diagnostic screens.3. Press the ENTER key to confirm each choice.4. Press the NEXT key to scroll through each Active Diagnostic.

Active DiagnosticsCGM ICS Temperature Sensor Fail Liquid Pressure Sensor Fail Ckt 1CGM Module Data Storage Error Liquid Pressure Sensor Fail Ckt 2CGM OA Temp Sensor Failure Low Ambient Evap Soln Pump OverrideCGM Zone Temp Sensor Failure Low Soln Cutout Temp (Man)Ckt 1 Pumpdown Terminated by Time Low Soln Cutout Temp (Auto)Ckt 2 Pumpdown Terminated by Time Low Press Control Open - Ckt 1Comp Contactor Fail - Ckt 1 Low Press Control Open - Ckt 2Comp Contactor Fail - Ckt 2 LSS Adjusted To Maintain Min DiffCompressor Trip - Ckt 1 EST/LST Low Temperature IndicationCompressor Trip - Ckt 2 MCM Communications FailureComp Protection LPC Open - Ckt 1 Sat Liquid Temp Sensor Fail Ckt 1Comp Protection LPC Open - Ckt 2 Sat Liquid Temp Sensor Fail Ckt 2Cond Temp Sensor Failure - Ckt 1 SCM Communications FailureCond Temp Sensor Failure - Ckt 2 Suction Pressure Sensor Fail Ckt 1Current Sensor Module Comm Fail Suction Pressure Sensor Fail Ckt 2Emergency Stop Suction Temp Sensor Failure - Ckt 1Evap Entering Soln Temp Sensor Fail Suction Temp Sensor Failure - Ckt 2Evap Leaving Soln Temp Sensor Fail Superheat/Subcool Module Comm FailEvap Solution Flow Proving Switch BAS Module Comm FailureEvap Solution Flow Loss BAS/NETWORK Comm FailureExtern Leaving Soln STP Input Fail Unit HI Communications FailureGBAS 0-5VDC Module Comm FailureGBAS 0-10VDC Module Comm FailHot Start Load Limit (Auto)Hot Start Load Limit (Info)Hot Start Load Limit (Man)Hot Start Load Limit STP FailIBTS Adjusted To Maintain Min DiffIce Build Terminate Setpoint FailLeaving Solution Setpoint Fail

GBAS (0-5VDC) Binary Output 1 Definition OUTPUT IS NOT ASSIGNED

GBAS (0-5VDC) Output 1 Alarm Assignments Press ENTER to Review or Adjust

Assign Diag To GBAS (0-5V) Output #1 ? Any Active Diagnostic (No)

30

System Programming SETUP1. Press the NEXT key to display Generic BAS Binary Output 2 Definition screen.

2. Press the + or - key until the proper value is displayed. Used on Units: With GBAS 0-5VDC Module3. Press the ENTER key to confirm this choice. Possible Values: Output is Not Assigned4. Press the NEXT key to display Generic BAS Binary Output Indicate Selected Diag Alarms 3 screen. Indicate Unit at Max Capacity5. Press the + or - key until the proper value is displayed. Indicate any comp is running6. Press the ENTER key to confirm each choice.7. Repeat steps 1 - 4 to display Generic BAS Binary Output screens 3, 4 & 5. 8. Press the NEXT key to advance to the following screen.



1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key. If no adjustments are required, press the NEXT key to advance to the "CGM Alarm Output Diagnostic Assignments"

2. Press the + or - key until the proper value is displayed. Used on Units: With GBAS 0-10VDC Module3. Press the ENTER key to confirm this choice. Possible Values: Not Assigned4. Press the NEXT key to display Generic BAS Analog Input Leaving Solution Setpoint 2 screen. Ice Build Terminate Setpoint5. Press the + or - key until the proper value is displayed. Hot Start Load Limit Setpoint6. Press the ENTER key to confirm each choice. Capacity Limit Setpoint7. Repeat steps 1 - 4 to display Generic BAS Analog Input screens 2, 3 & 4. 8. Press the NEXT key to advance to the following screen.

1. Press the + or - key until the proper value is displayed. Used on Units: With GBAS 0-10VDC Module2. Press the ENTER key to confirm this choice. Possible Values: Output is Not Assigned3. Press the NEXT key until the following screen is displayed. Indicate Selected Diag Alarms

Indicate Unit at Max CapacityThe following screen will display if "Indicate selected diag Indicate any comp is runningalarms" is assigned.

1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to the GBAS Analog Output Assignment screen.


GBAS 0-10VDC Module I/O AssignmentsPress ENTER to Review or Adjust

GBAS (0-10VDC) Analog Input 1 Assignment NOT ASSIGNED

GBAS (0-10VDC) Binary Output Definition OUTPUT IS NOT ASSIGNED

GBAS (0-5VDC) Binary Output 2 DefinitionOUTPUT IS NOT ASSIGNED

GBAS (0-10VDC) Output Alarm Assignments Press ENTER to Review or Adjust

31


2. Press the + or - key until the proper value is displayed. If "YES" is assigned to "Any Active Diagnostic", pressing the NEXT key Used on Units: With GBAS 0-10VDC Module will advance to the "End of Submenu" screen. Possible Values: Yes, No Assigning "NO" to the "Any Active Diagnostic" will advance to the selectable diagnostic screens. See 0-5 active diagnostics list.3. Press the ENTER key to confirm each choice.4. Press the NEXT key to scroll through each Active Diagnostic.

1. Press the + or - key until the proper value is displayed. Used on Units: With GBAS 0-10VDC Module2. Press the ENTER key to confirm this choice.

Possible Values: Active Cooling Capacity Ckt 1 Liquid Line Pressure

Ckt 2 Liquid Line Pressure1. Press the + or - key until the proper value is displayed. Ckt 1 Sat Cond Temp2. Press the ENTER key to confirm this choice. Ckt 2 Sat Cond Temp3. Press the NEXT key until the following screen is displayed. Ckt 1 Sat Liquid Temp4. Press the NEXT key to display Generic BAS Analog Output Ckt 2 Sat Liquid Temp 3 screen. Ckt 1 Suction Pressure5. Press the + or - key until the proper value is displayed. Ckt 2 Suction Pressure6. Press the ENTER key to confirm each choice. Ckt 1 Suction Temperature7. Repeat steps 1 - 4 to display Generic BAS Analog Output Ckt 2 Suction Temperature screens 3 & 4. Entering Solution Temperature8. Press the NEXT key to advance to the following screen. ICS Defined Temperature

Leaving Solution Temperature Outside Air Temperature


1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to the "Device Characteristic Setup Definitions" screen.

2. Press the + or - key until the proper value is displayed. If "YES" Used on Units: All Units is assigned to "Any Active Diagnostic", pressing the NEXT key Possible Values: Yes, No will advance to the "End of Submenu" screen. Assigning "NO" to the "Any Active Diagnostic" will advance to the selectable diagnostic screens. See the active diagnostics list in the GBAS 0-5V section.3. Press the ENTER key to confirm this choice.4. Press the NEXT key until the following screen is displayed.



CGM Alarm Output Diagnostic AssignmentsPress ENTER to Review or Adjust

Assign Diagnostic to CGM Alarm Output? Any Active Diagnostic (No)


GBAS (0-10VDC) Analog Output 1 Assignment NOT ASSIGNED

Assign Diag To GBAS (0-10V) Output ? Any Active Diagnostic (No)

GBAS (0-10VDC) Analog Output 2 Assignment NOT ASSIGNED

32


1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to the "Control Algorithm Tuning Parameters".


Possible Values: 1 to 255 Seconds


Used on Units: All UnitsPossible Values: 0 - 10 VDC



Possible Values: 0 - 10 VDC



Possible Values: Direct Acting/Reverse Acting


Used on Units: 40 - 60 Ton UnitsPossible Values: 1 to 255 Seconds


Used on Units: 40 - 60 Ton Units

Possible Values: 0 - 10 VDC


Used on Units: 40 - 60 Ton UnitsPossible Values: 0 - 10 VDC


Used on Units: 40 - 60 Ton Units

Possible Values: Direct Acting/Reverse Acting


Device Characteristic Setup Definitions Press ENTER to Review or Adjust

Actuator Setup Ckt1 Low Ambient Output Max Stroke Time 60 Sec

Actuator Setup Ckt1 Low Ambient Output Min Voltage 2 VDC

Actuator Setup Ckt1 Low Ambient Output Max Voltage 10 VDC

Actuator Setup Ckt 1 Low Ambient Output Direct/Reverse Act DIRECT ACTING

Actuator Setup Ckt 2 Low Ambient Output Max Stroke Time 60 Sec

Actuator Setup Ckt 2 Low Ambient Output Min Voltage 2 VDC

Actuator Setup Ckt 2 Low Ambient Output Max Voltage 10 VDC

Actuator Setup Ckt 2 Low Ambient Output Direct/Reverse Act DIRECT ACTING

33

System Programming SETUPUsed on Units: With Superheat/Subcooling OptionPossible Values: 0 PSIG - 0.000 to 4.000 VDC 100 PSIG - 1.000 to 5.000 VDC

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "100 PSIG"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.

Used on Units: With Superheat/Subcooling OptionPossible Values: 0 PSIG - 0.000 to 4.000 VDC 400 PSIG - 1.000 to 5.000 VDC


Used on Units: 40-60 Ton With Superheat/SubcoolingPossible Values: 0 PSIG - 0.000 to 4.000 VDC 100 PSIG - 1.000 to 5.000 VDC


Used on Units: 40-60 Ton With Superheat/SubcoolingPossible Values: 0 PSIG - 0.000 to 4.000 VDC 400 PSIG - 1.000 to 5.000 VDC



1.To view the factory preset or to modified the factory presets to meet specific application requirements, press the ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to the beginning of the "Setup" menu.




Control Algorithm Tuning Parameters Press ENTER to Review or Adjust

Comfort Cooling Design Delta Temperature Setpoint 10.0 F

Ckt 1 Suction Line Pressure Transducer 0 PSIG= 0.118 VDC 100 PSIG= 4.847 VDC

Ckt 1 Liquid Line Pressure Transducer 0 PSIG= 0.118 VDC 400 PSIG= 4.847 VDC

Ckt 2 Suction Line Pressure Transducer 0 PSIG= 0.118 VDC 100 PSIG= 4.847 VDC

Ckt 2 Liquid Line Pressure Transducer 0 PSIG= 0.118 VDC 400 PSIG= 4.847 VDC

34

System Programming SETUP ENTER key to advance to the following screens. If no adjustments are required, press the NEXT key to advance to the beginning of the "Setup" menu.


Possible Values: 4.0 to 20.0 F



Possible Values: 1 to 128



Possible Values: Proportional 2.0 to 200.0 Reset Time 30 to 3600 Sec

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "Reset Time"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.


Possible Values: Proport Bias 0 to 400% Max Cy Rate - 1.5 to 20.0 cph

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "Max Cy Rate".4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.


Possible Values: Proportional 0.2 to 20.0 Reset Time 5 to 600 Sec

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "Reset Time"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.

Used on Units: All UnitsPossible Values: 0 to 50

1. Press the + or - key until the proper value is displayed.

Comfort Cooling Design Delta Temperature Setpoint 10.0 F

Comfort Cooling Control Response Setpoint 25

Process Cooling Control Gains Proportional 25 %/F Reset Time 90s

Process Cooling Control Gains Proport Bias 0% Max Cy Rate 15.0 cph

Low Ambient Fan Control Gain Proportional 2.0 %/F Reset Time 90 Sec

Low Ambient Fan Control Gain Rate Time 0 Sec

35

SETPOINTS Menu

The SETPOINTS menu is used to designate defaultsetpoints, low ambient compressor lockout setpoints andselect setpoint sources.

These setpoints will be active (in use) for the "SetpointSource Selection" designated as "DEFAULT" for these in-puts.

System Programming SETPOINTSWhen a setpoint screen is displayed for 30 minutes withouta key being pressed, the LCD screen will revert to the gen-eral operating status display. If this happens, press theSETPOINT key again to return to the setpoint menu.

Used on Units: All UnitsPossible Values: Based on Configured Leaving Solution STP Range: Range 51.0 - 65.0°F

1. Press the + or - key until the proper value is displayed. Range 40.0 - 50.0°F2. Press the ENTER key to confirm this choice. Range 30.0 - 39.0°F3. Press the NEXT key until the following screen is displayed. Range 20.0 - 29.0°F

Range 10.0 - 75.0°F (SPECIAL)Used on Units: Units with Ice Building Control OptionPossible Values: 20.0 to 31.0 F


Used on Units: All UnitsPossible Values: -10.0 to 60.0 FNote: Maximum setting may be limited by ’Hi Leaving

1. Press the + or - key until the proper value is displayed. Solution Setpoint’2. Press the ENTER key to confirm this choice.3. Press the NEXT key until the following screen is displayed.

Used on Units: All Brazed Plate UnitsPossible Values: 0 to 45.0 FNote: Maximum setting may be limited by ’Hi Leaving

1. Press the + or - key until the proper value is displayed. Solution Setpoint’2. Press the ENTER key to confirm this choice.3. Press the NEXT key until the following screen is displayed.



Used on Units: All UnitsPossible Values: -20.0 to 50.0 F


Used on Units: All UnitsPossible Values: -20.0 to 60.0 F


Used on Units: All UnitsPossible Values: Human Interface STP Menu GBAS 0-5VDC Module

1. Press the + or - key until the proper value is displayed. GBAS 0-10VDC Module2. Press the ENTER key to confirm this choice. Ext Leaving Soln STP Input

Stop Ice Making When Ent Soln Temp Below Hi Ice Build Terminate Setpoint: 27.0 F

Comp(s) OFF if Solution Temp Below Low Solution Cutout Temp: 35.0 F

HI Hot Start Load Limit Setpoint: 71.0 F

Request Pump ON When OA Temp Less Than Low Ambient Pump Override Temp: 35 F

Low Ambient Comp Lockout Temp: 40 F Comp(s) OFF if OA Temp Below This Value

Use Leaving Solution Setpoint From: HUMAN INTERFACE STP MENU

Heat Output ON When EST or LST Less Than Heat Tape Temperature Setpoint: 40.0 F

HI Leaving Solution Setpoint: 44 F

36

System Programming SETPOINTS

3. Press the NEXT key until the following screen is displayed. Used on Units: With Ice Building Control OptionPossible Values: Human Interface STP Menu GBAS 0-5VDC Module

1. Press the + or - key until the proper value is displayed. GBAS 0-10VDC Module2. Press the ENTER key to confirm this choice.3. Press the NEXT key until the following screen is displayed.

Used on Units: All UnitsPossible Values: Human Interface STP Menu GBAS 0-5VDC Module

1. Press the + or - key until the proper value is displayed. GBAS 0-10VDC Module2. Press the ENTER key to confirm this choice.3. Press the NEXT key until the following screen is displayed.

Used on Units: With GBAS5V or GBAS10VPossible Values: No Source Selected GBAS 0-5VDC Module

1. Press the + or - key until the proper value is displayed. GBAS 0-10VDC Module2. Press the ENTER key to confirm this choice.3. Pressing the NEXT key will return to the 1st SETPOINT screen. 4. Press the AUTO or STOP key to return to the top level status information screen.

Use Ice Building Terminate Setpoint From: HUMAN INTERFACE STP MENU

Use Hot Start Load Limit Setpoint From: HUMAN INTERFACE STP MENU

Use Capacity Limit Setpoint From: NO SOURCE SELECTED

37

System ConfigurationCONFIGURATION Menu

The CGM controlled unit has many operating functionswhose settings are preset at the factory. The following con-figuration programming steps are provided for those caseswhere the Human Interface module has been replaced afterthe unit has been in operation and must be reconfigured.

Refer to the Model number stamped on the unit nameplatelocated on the control panel door while scrolling through theconfiguraton screes. Certain digits of this alpha/numericmodel number provide information that must be entered atthe Human Interface (HI) in order for the CGM network tooperate properly.

Press the CONFIGURATION key to display the followingscreens. Check the unit model number and compare it to thedata that is displayed in the following screens

Used on Units: All UnitsPossible Values: 20, 25, 30, 40, 50, 60


Used on Units: All UnitsPossible Values: 200 VAC, 230 VAC, 380 VAC, 415 VAC, 460 VAC, 575 VAC,

1. Press the + or - key until the proper value is displayed. Special Voltage2. Press the ENTER key to confirm this choice.3. Press the NEXT key until the following screen is displayed.

Used on Units: All UnitsPossible Values: Installed, Not Installed


Used on Units: All UnitsPossible Values: 51-65 F, 40-50 F, 30-39 F, 20-29 F, Special










Configuration - Model Num Digit 5,6,7 Unit Capacity 50

Configuration - Model Num Digit 8 Line Voltage 460 VAC

Configuration - Model Num Digit 11 Ice Building Control INSTALLED

Configuration - Model Num Digit 11 Leaving Solution STP Range 40 - 50 F

Configuration - Model Num Digit 13+ Hot Gas Bypass Option INSTALLED

Configuration - Model Num Digit 13+GBAS 0-5VDC Module INSTALLED

Configuration - Model Num Digit 13+ GBAS 0-10VDC Module INSTALLED

Configuration - Model Num Digit 13+Superheat/Subcool Module INSTALLED

38

System Configuration3. Press the NEXT key until the following screen is displayed.







The following displays are not editable.Used on Units: All UnitsPossible Values: 1.0 or Greater

1. Press the NEXT key until one of the following screens is displayed. Used on Units: 20 to 30 Ton UnitsPossible Values: 1.0 or Greater

ORUsed on Units: 40 to 60 Ton UnitsPossible Values: 1.0 or Greater

1. Press the NEXT key until the following screen is displayed. Used on Units: With GBAS 5VDC ModulePossible Values: 1.0 or Greater

1. Press the NEXT key until the following screen is displayed. Used on Units: With GBAS 10VDC ModulePossible Values: 1.0 or Greater

1. Press the NEXT key until the following screen is displayed. Used on Units: With SSM ModulePossible Values: 1.0 or Greater

Configuration - Model Num Digit 13+ Current Sensing Module INSTALLED

Configuration - Model Num Digit 13+ BAS Communications Module INSTALLED

Configuration - Model Num Digit 13+ Remote Human Interface INSTALLED

Software Revision Number Report: Cold Generator Module (CGM) 1.00

Software Revision Number Report: Multiple Compressor Module (MCM) 1.00

Software Revision Number Report: GBAS 0-5VDC Module 1.00

Software Revision Number Report: GBAS 0-10VDC Module 1.00

Software Revision Number Report: Superheat/Subcool Module (SSM) 1.00

Software Revision Number Report: Single Compressor Module (SCM) 1.00

39

System Configuration1. Press the NEXT key until the following screen is displayed.

Used on Units: With CSM ModulePossible Values: 1.0 or Greater

1. Press the NEXT key until the following screen is displayed. Used on Units: All UnitsPossible Values: 1.0 or Greater

1. Press the NEXT key until the following screen is displayed. Used on Units: With Remote Human Interface ModulePossible Values: 1.0 or Greater

1. Press the NEXT key until the following screen is displayed. Used on Units: With TCI or LCI ModulePossible Values: Comm3 (with TCI module) Comm5 (with LCI module)

1. Pressing the NEXT key will return to the 1st Possible Values: 1.0 or Greater CONFIGURATION screen. 2. Press the AUTO or STOP key to return to the top level status information screen.

Software Revision Number Report: Current Sensing Module (CSM) 1.00

Software Revision Number Report: Unit Human Interface (HI) 1.00

Software Revision Number Report: BAS Communications: Comm3 1.00

Software Revision Number Report: Remote Human Interface (RHI) 1.00

40

System Testing & Troubleshooting

To operate the system in the TEST MODE, press the SERVICEMODE key to enter into the service mode menu and scroll through all of the system outputs and selectively turn them"On" or "Off".

Used on Units: All UnitsPossible Values: On, Off



1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "Ckt 2"Circuit 2 is used for 40 through 60 Ton units only.4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.


1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "Ckt 2"Circuit 2 is used for 40 through 60 Ton units only.4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.

Used on Units: With Hot Gas Bypass OptionPossible Values: On, Off


Used on Units: 20 to 30 TonPossible Values: On, Off

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "K11"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.

CGM Evap Solution Pump Relay: OFF

Liquid Line Solenoid Valve Ctrl Relays: Ckt 1 ON Ckt 2 OFF

CGM Hot Gas Bypass Control Relay: OFF

Low Ambient LPC Bypass Relay(s) Ckt 1 ON Ckt 2 OFF

Compressor Relays K11 OFF K12 OFF

SERVICE MODE Menu

The SERVICE MODE menu is used to input operating pa-rameters for unit operation during a service test. Dependingon the particular test being conducted, the user will cyclethrough all unit outputs (compressors, fans, pump, etc...)and selectively turn them On or Off for the test. After desig-nating the operating status for each unit component, the op-erator will designate the "TEST START" delay time.

When a service mode screen is displayed for 30 minuteswithout a key being pressed, the LCD screen will revert tothe general operating status display. If this happens, pressthe SERVICE MODE key again to return to the servicemenu.

41

System Testing & TroubleshootingOR

The following screen will display on 40 to 60 Ton units.Used on Units: 40 to 60 TonPossible Values: On, Off

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "K12"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key to advance the cursor to the "K3"7. Press the + or - key until the proper value is displayed.8. Press the ENTER key to confirm this choice.9. Press the NEXT key to advance the cursor to the "K4"10. Press the + or - key until the proper value is displayed.11. Press the ENTER key to confirm this choice.12. Press the NEXT key until the following screen is displayed.

Used on Units: All UnitsPossible Values: On, Off, Auto

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "1B"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.7. Press the + or - key until the proper value is displayed.8. Press the ENTER key to confirm this choice.9. Press the NEXT key to advance the cursor to the "2B"

The following screen will display on 40 to 60 Ton units.Used on Units: 40 to 60 TonPossible Values: On, Off, Auto

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "1B"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key to advance the cursor to the "2A"7. Press the + or - key until the proper value is displayed.8. Press the ENTER key to confirm this choice.9. Press the NEXT key to advance the cursor to the "2B"

Used on Units: All UnitsPossible Values: Auto, 0 to 100%Note: This is the low ambient damper position

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.Circuit 2 is used for 40 through 60 Ton units only.3. Press the NEXT key to advance the cursor to the "Ckt 2"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.

Used on Units: All Brazed Plate UnitsPossible Values: On, Off



Compressor Relays K11 OFF K12 OFF K3 OFF K4 OFF

Condenser Fan Outputs 2A OFF 2B OFF 2C OFF

Condenser Fan SpeedCkt 1 0 % Ckt 2 0%

CGM Alarm Output: OFF

Condenser Fan Outputs 1A OFF 1B OFF 1C OFF

MCM Heater Tape Relay K13: OFF Relay ON: Heat Off, Relay OFF: Heat On

42

System Testing & Troubleshooting3. Press the NEXT key until the following screen is displayed.

Used on Units: With Ice Building Control OptionPossible Values: On, Off


Used on Units: With GBAS 5VDC Module OptionPossible Values: On, Off

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "#2 Output"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Repeat steps 1 - 4 for Outputs 3, 4 & 5.7. Press the NEXT key until the following screen is displayed.

Used on Units: With GBAS 10VDC Module OptionPossible Values: On, Off


Used on Units: With GBAS 10VDC Module OptionPossible Values: 0.0 to 10.0 VDC

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "#2 Output"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.

Used on Units: With GBAS 10VDC Module OptionPossible Values: 0.0 to 10.0 VDC

1. Press the + or - key until the proper value is displayed.2. Press the ENTER key to confirm this choice.3. Press the NEXT key to advance the cursor to the "#4 Output"4. Press the + or - key until the proper value is displayed.5. Press the ENTER key to confirm this choice.6. Press the NEXT key until the following screen is displayed.

Used on Units: With TCI Module Option (For Future Use)Possible Values: On, Off


CGM Ice Build Relay Output : OFF

GBAS 0-5VDC Module Relay Outputs #1 OFF #2 OFF #3 OFF #4 OFF #5 OFF

GBAS 0-10VDC Module Relay Output: OFF

GBAS 0-10VDC Module Analog Outputs Out #1 0.2 VDC Out #2 0.4 VDC

GBAS 0-10VDC Module Analog Outputs Out #3 0.6 VDC Out #4 0.8 VDC

CGM ICS Controlled Relay: OFF

43

System Testing & Troubleshooting3. Press the NEXT key until the following screen is displayed.



The following screen will be displayed after pressing the "TESTSTART" key if a SERVICE MODE screen has been displayedduring the previous 60 minutes.


Possible Values: 120 to 0 Seconds

If a screen has not been displayed during the SERVICE MODEprocedure for 60 minutes and the TEST START key is pressed, the following screen will be displayed.


When the START TEST timer expires, this screen will be displayedat the unit mounted Human Interface and at the remote mountedHuman Interface, if installed.


Note: There is no time-out period when the unit is operating in theSERVICE TEST mode. Press the "STOP" or "AUTO" key todiscontinue the Service Test. Only the STATUS, CUSTOM, SERVICE MODE, DIAGNOSTICS, and STOP keys are functionalonce the TEST START key has been pressed.

After pressing the STOP or AUTO key, the following screen is displayed

and then the following screen is displayed:

and then the top level status screen is displayed.

Start Test in 5 Sec Press TEST START To Begin, STOP To Halt

Test Start In 5 Sec Press STOP To Halt

Press SERVICE MODE To Review Selections

Service Test Is Active Press STOP To Halt

Service Mode, STOP SYSTEM Restart Communicating With Unit. Please Wait

Updating Unit Data. Please Wait TRANE INTELLIPAK

44

System Testing & TroubleshootingDIAGNOSTICS Menu

The DIAGNOSTICS menu is used to view diagnostics thathave resulted from system failures within the unit. There aretwo lists where diagnostics reside; the Active list, and theDiagnostic Event Log.

The Active list is used for viewing all active diagnostics andfor clearing manually resetable diagnostics. This list of diag-nostics are displayed after pressing the DIAGNOSTICS keyif active diagnostics are present.

Active manual diagnostics can be cleared in batch form atthe unit mounted Human Interface. When an Active diag-nostic is manually or automatically cleared, it is removedfrom this buffer. Automatically resetting diagnostics can notbe reset by the Human Interface, because the conditionwhich caused the diagnostic has to be corrected for the di-agnostic to clear.

The word “MORE” is displayed on all screens if more thanone diagnostic exists, except for the last diagnostic. Uponreaching the last diagnostic, the word “MORE” disappears.Pressing the NEXT key at this point causes the display toadvance to the first diagnostic in the Diagnostic Event Log.

The Diagnostic Event Log screens are displayed afterscrolling through the Active list or after pressing theDIAGNOSTICS key when no active diagnostics are present.It’s used to view the past 20 diagnostics. Diagnostics in this

log are stacked in inverse chronological order, with the firstdiagnostic screen being the most recently reported diagnos-tic.

When a new diagnostic is displayed, the words “NOTVIEWED” are displayed with it. After viewing the lastunviewed diagnostic, the words "NOT VIEWED" change to"VIEWED" for every diagnostic in the log. The diagnosticwill remain this way as long as it is in the log. This allowsthe operator to distinquish between old and new diagnosticsin the Event Log.

Pressing the NEXT key after reaching the last diagnostic inthe Event Log advances the display to the first diagnostic inthe Active list if any exist. If not, the display reverts back tothe first Event Log diagnostic. If the Diagnostic Event Log isfull (20 events), and another diagnostic occurs, the oldestdiagnostic is pushed off the end of the list. If all 20 diagnos-tics in the list are active when the 21st occurs, then the old-est Active diagnostic is pushed off the end of the list. Whenan Active diagnostic is automatically or manually cleared inthe Active buffer, its status in the Diagnostic Log changesfrom Active to History. If the operator does not clear an ac-tive diagnostic in the Active log, its status will still show asActive in the Diagnostic Log.

When a diagnostic screen is displayed for more than fourhours without a key being pressed, the screen will return tothe operating status display.

One of the following screens will be the first screen displayed whenthe DIAGNOSTIC" key is pressed.

OR

1. If there are active diagnostics, pressing the "CANCEL" key to clear the diagnostics will prompt the following screen.

Used on Units: All UnitsPossible Values: + (Plus) and - (Minus)

1. Press the + (Plus) or - (Minus) keys to enter the password2. Press the ENTER key to confirm this choice. When the correct password is entered, the following screen will be displayed.

Diagnostic Reset Is Password Protected Please Enter Password:

Diagnostic Menu ---- Info No Active Diagnostics (NEXT) History Log

Press CANCEL to Clear All Active Manual Diagnostics, or Press NEXT to View

45


and then the following screen will be displayed

and then the following screen will be displayed

OR3. Pressing the "NEXT" key to view the diagnostics will prompt the following screen if a "MANUAL RESET" failure has occurred.


The word MORE will only appear if more than one failure hasoccurred.

Possible Values:Comp Contactor Fail - Ckt 1 Evap Leaving Solution Temp Sensor FailComp Contactor Fail - Ckt 2 Evap Entering Solution Temp Sensor FailComp Prot - LPC Open (Ckt 1) Evap Solution Flow LossComp Prot - LPC Open (Ckt 2) Hot Start Load Limit (Man)Compressor Trip - Ckt 1 Low Solution Cutout Temp (Man)Compressor Trip - Ckt 2 Low Pressure Control Open - Ckt 1Emergency Stop Low Pressure Control Open - Ckt 2

Resetting Active Manual Diagnostics Updating Unit Data, Please Wait

Resetting Active Manual Diagnostics Sending Reset Request

Active Diagnostic ---- Info "Please Wait . . . Unit Is In Reset Mode"

Active Diagnostic ---- Manual Reset More

ORPressing the "NEXT" key to view the diagnostics will prompt the Used on Units: All Unitsfollowing screen if an "AUTO RESET" failure has occurred.

The word MORE will only appear if more than one failure has occurred.

Possible Values: CGM OA Temp Sensor Failure, IBTS Adjusted to Maintain Min DiffCGM Zone Temp Sensor Failure, Ice Build Terminate Setpoint FailCond Temp Sensor Failure - Ckt 1, Leaving Solution Setpoint FailCond Temp Sensor Failure - Ckt 2, Low Ambient Evap Solution Pump OverrideCurrent Sensing Module Comm Fail Low Solution Cutout Temp (Auto)Evap Solution Flow Proving Switch LSS Adjusted to Maintain Min DiffExt. Leaving Solution STP Input Fail MCM Communications FailureGBAS 0-5V Module Comm Failure SCM Communications FailureGBAS 0-10V Module Comm Fail BAS Module Comm FailureHot Start Load Limit (Auto) BAS/NETWORK Comm FailureHot Start Load Limit STP Fail Unit HI Communications Failure

ORPressing the "NEXT" key to view the diagnostics will prompt the following screen if an "Information Only" failure has occured.

Active Diagnostic ---- Auto Reset More

46

System Testing & TroubleshootingUsed on Units: All Units

The word MORE will only appear if more than one failure hasoccured.If additional active diagnostics are present, pressing the NEXT key will display them.Possible Values:CGM ICS Temperature Sensor Fail Sat Liquid Temp Sensor Fail Ckt 1CGM Module Data Storage Error Sat Liquid Temp Sensor Fail Ckt 2EST/LST Low Temperature Indication Suction Pressure Sensor Fail Ckt 1Hot Start Load Limit (Info) Suction Pressure Sensor Fail Ckt 2Liquid Pressure Sensor Fail Ckt 1 Suction Temp Sensor Fail Ckt 1Liquid Pressure Sensor Fail Ckt 2 Suction Temp Sensor Fail Ckt 2Pumpdown Terminated By Time Ckt 1 Superheat/Subcool Module FailPumpdown Terminated By Time Ckt 2

After viewing all active diagnostics, pressing the NEXT key will display the following screenUsed on Units: All UnitsPossible Values: Log Number 1-20, Viewed orNot Viewed, Active or History, Manual, Auto,or Info., Any diagnostic listed under the previous

Pressing the NEXT key will display each successive log entry. screens associated with the type of diagnostic.

1. Pressing the "CANCEL" key to clear the diagnostics log will display the following screen.

Used on Units: All UnitsPossible Values: + (Plus) and - (Minus)

1. Press the + (Plus) or - (Minus) keys to enter the password2. Press the ENTER key to confirm this choice. When the correct password is entered, the following screen will be displayed.


Possible Values: Manual, Auto, or Info

If the "DIAGNOSTIC LOG" is empty when the "CANCEL" key ispressed, the following screen will be displayed.


Possible Values: Manual, Auto, or Info

Press the AUTO or STOP key to return to the top level status screen.

Active Diagnostic ---- Info More

Log 1 __________

Diagnostic Log Is Password Protected Please Enter Password:

Active Diagnostics ____________________ "Please Wait . . . Updating Diagnostic Log"

Active Diagnostics ---- Info"Diagnostic Buffer Is Already Empty !"

Failure Modes

When any condition results in the unit's unability to performa normal function, it is said to have entered a failure mode.There are two types of failure modes.

1. An "Analog input out of range" failure mode.

This failure mode occurs when a sensing device such as atemperature sensor begins to transmit information that isoutside its allowable range.

2. A "Fault recognition by input logic" failure mode.This failure mode occurs when the UCM receives informa-tion that does not "make sense" or does not conform to itspredefined logic.

47

Communications Link Problems If one of these messages appear on the Human Interface screen,that Human Interface is not communicating with the unit.

Used With: All Units with Local HIProblem: The Unit Mounted (Local) Human interface has lost communications with the CGM. See "Fail Diagnostic" for additional information.Check: Wiring between Unit Mounted (Local) Human Interface and CGM. Verify crimping and polarity of communications wiring. There should be no loose connections or crimps on wire insulation.

ORUsed With: All Units with Remote Human InterfacePossible Values: Unit Number 1 through 4Problem: The Remote Human Interface has lost communications with the unit whose number is specified (#3 in this example).Check: Field/unit wiring between Remote Human Interface and the IPCB on the unit number specified. Also, verify wiring between the IPCB and CGM of the unit whose number is specified. Verify crimping and polarity of communications wiring. There should be no loose connections or crimps on wire insulation.

If one of these messages appear on the Human Interface screen,the link is noisy or there is another Human Interface of the sametype on the link.

Used With: All Units with Local HIProblem: Noisy Communications link or a second Local HI has been installed on the link.Check: Wiring between Unit Mounted (Local) Human Interface and CGM. Verify crimping of communications wiring. There should be no loose connections or crimps on wire insulation. If a Remote HI was installed, verify that a Local HI was not installed by mistake.

ORUsed With: All Units with Remote Human InterfaceProblem: Noisy Communications link or a second Remote HI has been installed on the link.Check: Field/Unit wiring between Remote Human Inter- face and the IPCB and CGM. Verify crimping of communications wiring. There should be no loose connections or crimps on wire insulation. Verify that no other Remote HI’s have been connected to the same communications link/unit.

The following Troubleshooting chart lists possible FailureModes and:

1. The Diagnostic Displayed on the Human Interface’s LCD screen and if it is a PMR, PAR, INFO or HO diagnostic.2. The condition which caused the failure mode to occur or the Reason for Diagnostic.3. The UCM’s Reaction to the failure mode.

LOCAL HI COMMUNICATIONS LOSSCHECK COMM LINK WIRING BETWEEN MODULES

REMOTE HI COMMUNICATIONS LOSS CHECK COMM LINK WIRING TO UNIT NUMBER 3

Improper Human Interface ConfigurationMore than one Local HI on link

Improper Human Interface Configuration More than one Remote HI on link


Diagnostics

There are four types of diagnostics:

1. (PMR) Partial System Disable, Manual Reset

2. (PAR) Partial System Disable, Auto Reset

3. (INFO) Information Only

4. (HO) History Only

48

System Testing & TroubleshootingD

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M.

The

Lea

ving

Sol

utio

n R

eset

type

se

lect

ed is

Zon

e T

emp

Res

et, a

nd th

e un

it is

rea

ding

a s

igna

l tha

t is

out o

f ra

nge

for

this

inpu

t (T

emp

< -

40 F

or

Tem

p >

200

F).

The

Res

et ty

pe r

ever

ts to

NO

NE

fo

r th

e du

ratio

n of

the

failu

re.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r th

e de

sign

ated

Zon

e T

empe

ratu

re s

igna

l ret

urns

to it

s al

low

able

ran

ge. I

n or

der

to p

reve

nt

rapi

d cy

clin

g of

the

Dia

gnos

tic,

ther

e is

a 1

0 se

cond

del

ay b

efor

e th

e au

tom

atic

res

et.

49


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DC

ircui

t 1 P

umpd

own

Ter

min

ated

by

Tim

e

Pro

blem

: Uni

t wen

t thr

ough

P

umpd

own

on C

ircui

t 1 a

nd L

PC

ne

ver

trip

ped.

Pum

pdow

n w

as

term

inat

ed a

fter

30 s

econ

ds.

Che

ck: C

heck

circ

uit 1

pum

pdow

n so

leno

id v

alve

and

low

pre

ssur

e sw

itch

to v

erify

pro

per

oper

atio

n.

Uni

t rem

aine

d in

pum

pdow

n fo

r 30

se

cond

s w

ithou

t the

occ

urre

nce

of

an L

PC

eve

nt. P

umpd

own

sequ

ence

w

as te

rmin

ated

by

a 30

sec

ond

timer

.

No

Cha

nge

in u

nit o

pera

tion

occu

rs.

Thi

s di

agno

stic

is fo

r in

form

atio

n on

ly.

(IN

FO

) T

his

diag

nost

ic is

res

et w

hen

a co

mpr

esso

r on

Circ

uit 1

is s

tage

d on

due

to a

coo

ling

dem

and.

Crc

uit 2

Pum

pdow

n T

erm

inat

ed b

y T

ime

(Circ

uit #

2 40

-60

Ton

uni

ts o

nly)

Pro

blem

: Uni

t wen

t thr

ough

P

umpd

own

on C

ircui

t 2 a

nd L

PC

ne

ver

trip

ped.

Pum

pdow

n w

as

term

inat

ed a

fter

30 s

econ

ds.

Che

ck: C

heck

circ

uit 2

pum

pdow

n so

leno

id v

alve

and

low

pre

ssur

e sw

itch

to v

erify

pro

per

oper

atio

n.

Uni

t rem

aine

d in

pum

pdow

n fo

r 30

se

cond

s w

ithou

t the

occ

urre

nce

of

an L

PC

eve

nt. P

umpd

own

sequ

ence

w

as te

rmin

ated

by

a 30

sec

ond

timer

.

No

Cha

nge

in u

nit o

pera

tion

occu

rs.

Thi

s di

agno

stic

is fo

r in

form

atio

n on

ly.

(IN

FO

) T

his

diag

nost

ic is

res

et w

hen

a co

mpr

esso

r on

Circ

uit 2

is s

tage

d on

due

to a

coo

ling

dem

and.

Com

pres

sor

Con

tact

or F

ail -

Circ

uit 1

Pro

blem

: The

Com

pres

sor

Con

tact

or fo

r C

ircui

t #1

has

mal

func

tione

d.

The

circ

uit #

1 co

mpr

esso

r pr

ovin

g in

put o

n th

e S

CM

/MC

M is

det

ecte

d cl

osed

con

tinuo

usly

for

mor

e th

an 3

se

cond

s w

hile

nei

ther

com

pres

sor

outp

ut o

n C

ircui

t #1

is c

lose

d.

A "

Lock

out C

ircui

t #1"

req

uest

is

issu

ed to

the

Com

pres

sor

Sta

ging

C

ontr

ol fu

nctio

n. T

he C

ompr

esso

r R

elay

s, L

PC

Byp

ass

Rel

ay,

Liqu

id L

ine

Sol

enoi

d R

elay

, and

H

ot G

as B

ypas

s R

elay

for

C

ircui

t 1 a

re a

ll de

-ene

rgiz

ed

(PM

R)

A m

anua

l res

et is

req

uire

d af

ter

the

diag

nost

ic is

set

. It c

an b

e re

set b

y th

e H

I or

Tra

cer,

or

by

cycl

ing

pow

er to

the

CG

M.

Com

pres

sor

Con

tact

or F

ail -

Circ

uit 2

(Circ

uit #

2 40

-60

Ton

uni

ts o

nly)

Pro

blem

: The

Com

pres

sor

Con

tact

or fo

r C

ircui

t #2

has

mal

func

tione

d.

The

Circ

uit #

2 co

mpr

esso

r pr

ovin

g in

put o

n th

e M

CM

is d

etec

ted

clos

ed

cont

inuo

usly

for

mor

e th

an 3

se

cond

s w

hile

nei

ther

com

pres

sor

outp

ut o

n C

ircui

t #2

is c

lose

d.

A "

Lock

out C

ircui

t #2"

req

uest

is

issu

ed to

the

Com

pres

sor

Sta

ging

C

ontr

ol fu

nctio

n. T

he

Com

pres

sor

Rel

ays,

LP

C

Byp

ass

Rel

ay, a

nd L

iqui

d Li

ne

Sol

enoi

d R

elay

for

Circ

uit 2

are

al

l de-

ener

gize

d

PM

R)

A m

anua

l res

et is

req

uire

d af

ter

the

diag

nost

ic is

set

. It c

an b

e re

set b

y th

e H

I or

Tra

cer,

or

by

cycl

ing

pow

er to

the

CG

M.

50


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DC

ompr

esso

r P

rote

ctio

n -

LPC

Ope

n -

Circ

uit 1

Pro

blem

: Sta

te o

f ref

riger

ant c

harg

e fo

r ci

rcui

t #1

is lo

w.

Whi

le th

e C

ircui

t 1 L

PC

Byp

ass

Rel

ay w

as e

nerg

ized

, the

7 P

SIG

LP

C s

witc

h: a

) w

as o

pen

at th

e tim

e a

com

pres

sor

was

req

uest

ed to

st

art,

or b

) th

e sw

itch

open

ed 4

tim

es

afte

r a

com

pres

sor

on C

ircui

t 1 w

as

star

ted

but p

rior

to a

ccum

ulat

ing

3 co

ntin

uous

min

utes

of r

un ti

me.

A “

Lock

out C

ircui

t #1”

req

uest

is

issu

ed to

the

Com

pres

sor

Sta

ging

C

ontr

ol fu

nctio

n. T

he C

ompr

esso

r R

elay

s, L

PC

Byp

ass

Rel

ay,

Liqu

id L

ine

Sol

enoi

d R

elay

, and

H

ot G

as B

ypas

s R

elay

for

C

ircui

t 1 a

re a

ll de

-ene

rgiz

ed.

(PM

R)

A m

anua

l res

et is

req

uire

d an

ytim

e af

ter

the

Dia

gnos

tic is

set

. T

he D

iagn

ostic

can

be

rese

t by

the

Hum

an In

terf

ace

or T

race

r, o

r by

cy

clin

g po

wer

to th

e C

GM

.

Com

pres

sor

Pro

tect

ion

- LP

C O

pen

-C

ircui

t 2

(Circ

uit #

2 40

-60

Ton

uni

ts

only

)

Pro

blem

: Sta

te o

f ref

riger

ant c

harg

e fo

r ci

rcui

t #2

is lo

w.

Whi

le th

e C

ircui

t 2 L

PC

Byp

ass

Rel

ay w

as e

nerg

ized

, the

7 P

SIG

LP

C s

witc

h: a

) w

as o

pen

at th

e tim

e a

com

pres

sor

was

req

uest

ed to

st

art,

or b

) th

e sw

itch

open

ed 4

tim

es

afte

r a

com

pres

sor

on C

ircui

t 2 w

as

star

ted

but p

rior

to a

ccum

ulat

ing

3 co

ntin

uous

min

utes

of r

un ti

me.

A “

Lock

out C

ircui

t #2”

req

uest

is

issu

ed to

the

Com

pres

sor

Sta

ging

C

ontr

ol fu

nctio

n. T

he

Com

pres

sor

Rel

ays,

LP

C

Byp

ass

Rel

ay, a

nd L

iqui

d Li

ne

Sol

enoi

d R

elay

for

Circ

uit 2

are

all

de-e

nerg

ized

.

(PM

R)

A m

anua

l res

et is

req

uire

d an

ytim

e af

ter

the

Dia

gnos

tic is

set

. T

he D

iagn

ostic

can

be

rese

t by

the

Hum

an In

terf

ace

or T

race

r, o

r by

cy

clin

g po

wer

to th

e C

GM

.

Com

pres

sor

Trip

- C

ircui

t 1

Pro

blem

: The

Com

pres

sor

Circ

uit #

1 ha

s tr

ippe

d.

The

Circ

uit #

1 C

ompr

esso

r pr

ovin

g in

put i

s de

tect

ed o

pen

cont

inuo

usly

fo

r m

ore

than

3 s

econ

ds w

hen

eith

er

or b

oth

com

pres

sor

outp

uts

on

Circ

uit #

1 ar

e en

ergi

zed

(as

desc

ribed

in th

e C

ompr

esso

r P

rote

ctio

n fu

nctio

n).

A “

Lock

out C

ircui

t #1”

req

uest

is

issu

ed to

the

Com

pres

sor

Sta

ging

C

ontr

ol fu

nctio

n. T

he

Com

pres

sor

Rel

ays,

LP

C

Byp

ass

Rel

ay, L

iqui

d Li

ne

Sol

enoi

d R

elay

, and

Hot

Gas

B

ypas

s R

elay

for

Circ

uit 1

are

all

de-e

ner g

ized

.

(PM

R)

A m

anua

l res

et is

req

uire

d af

ter

this

dia

gnos

tic o

ccur

s. T

he

Dia

gnos

tic c

an b

e re

set b

y th

e un

it m

ount

ed H

uman

Inte

rfac

e M

odul

e or

T

race

r, o

r by

cyc

ling

pow

er to

the

CG

M.

Com

pres

sor

Trip

- C

ircui

t 2(C

kt #

2 40

-60

Ton

uni

ts o

nly)

Pro

blem

: The

Com

pres

sor

Circ

uit #

2 ha

s tr

ippe

d.

The

Circ

uit #

2 C

ompr

esso

r pr

ovin

g in

put i

s de

tect

ed o

pen

cont

inuo

usly

fo

r m

ore

than

3 s

econ

ds w

hen

eith

er

or b

oth

com

pres

sor

outp

uts

on

Circ

uit #

2 ar

e en

ergi

zed

(as

desc

ribed

in th

e C

ompr

esso

r P

rote

ctio

n fu

nctio

n).

A “

Lock

out C

ircui

t #2”

req

uest

is

issu

ed to

the

Com

pres

sor

Sta

ging

C

ontr

ol fu

nctio

n. T

he

Com

pres

sor

Rel

ays,

LP

C

Byp

ass

Rel

ay, L

iqui

d Li

ne

Sol

enoi

d R

elay

for

Circ

uit 2

are

all

de-e

nerg

ized

(PM

R)

A m

anua

l res

et is

req

uire

d af

ter

this

dia

gnos

tic o

ccur

s. T

he

Dia

gnos

tic c

an b

e re

set b

y th

e un

it m

ount

ed H

uman

Inte

rfac

e M

odul

e or

T

race

r, o

r by

cyc

ling

pow

er to

the

CG

M.

Con

d T

emp

Sen

sor

Fai

lure

- C

ircui

t 1

Pro

blem

: The

Sat

urat

ed C

onde

nser

T

empe

ratu

re In

put i

s ou

t of r

ange

for

Circ

uit #

1.

Che

ck: S

enso

r re

sist

ance

bet

wee

n 83

0 oh

ms

(200

F)

and

345.

7Koh

ms

(-

40 F

). I

f so,

che

ck fi

eld/

unit

wiri

ng

betw

een

Sen

sor

and

MC

M/S

CM

.

The

uni

t is

read

ing

a si

gnal

that

is o

ut

of r

ange

for

the

circ

uit #

1 S

atur

ated

C

onde

nser

Tem

pera

ture

sen

sor.

(T

emp

< -

40 F

or

Tem

p >

200

F).

A “

Lock

out C

ircui

t # 1

” re

ques

t is

issu

ed to

the

Com

pres

sor

Sta

ging

C

ontr

ol fu

nctio

n. T

he

Com

pres

sor

Rel

ays,

LP

C

Byp

ass

Rel

ay, L

iqui

d Li

ne

Sol

enoi

d R

elay

, and

Hot

Gas

B

ypas

s R

elay

for

Circ

uit 1

are

all

de-e

nerg

ized

.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r th

e #1

Con

dens

er T

empe

ratu

re

inpu

t ret

urns

to it

s al

low

able

ran

ge

with

in 1

0 se

cond

s.

51


IAG

NO

STIC

DIS

PLA

YED

REA

SON

FO

R D

IAG

NO

STIC

UC

M’S

REA

CTI

ON

RES

ET R

EQU

IRED

Con

d Te

mp

Sens

or F

ailu

re -

Circ

uit 2

(Circ

uit #

2 40

-60

Ton

units

onl

y)

Prob

lem

: The

Sat

urat

ed C

onde

nser

Te

mpe

ratu

re In

put i

s ou

t of r

ange

for

Circ

uit #

2.

Che

ck: S

enso

r res

ista

nce

betw

een

830

ohm

s (2

00 F

) and

345

.7Ko

hms

(-4

0 F)

. If

so,

The

unit

is re

adin

g a

sign

al th

at is

out

of

rang

e fo

r the

circ

uit #

2 Sa

tura

ted

Con

dens

er T

empe

ratu

re s

enso

r. (T

emp

< -4

0 F

or T

emp

> 20

0 F)

.

A “L

ocko

ut C

ircui

t #2”

requ

est i

s is

sued

to th

e C

ompr

esso

r Sta

ging

C

ontro

l fun

ctio

n. T

he C

ompr

esso

r R

elay

s, L

PC B

ypas

s R

elay

, and

Li

quid

Lin

e So

leno

id R

elay

for

Circ

uit 2

are

all

de-e

nerg

ized

.

(PAR

) An

auto

mat

ic re

set o

ccur

s af

ter

the

#2 C

onde

nser

Tem

p in

put r

etur

ns

to it

s al

low

able

rang

e w

ithin

10

seco

nds.

Cur

rent

Sen

sing

Mod

ule

Com

m F

ail

Prob

lem

: The

CG

M h

as lo

st

com

mun

icat

ions

with

the

Cur

rent

Se

nsin

g M

odul

e (C

SM)..

Che

ck: C

heck

fiel

d/un

it w

iring

bet

wee

n C

GM

and

CSM

.

The

CG

M h

as lo

st c

omm

unic

atio

ns

with

the

CSM

.N

o C

hang

e in

uni

t ope

ratio

n oc

curs

. Th

e C

urre

nt S

ensi

ng

Mod

ule

is u

sed

for m

onito

ring

purp

oses

onl

y, a

nd d

oes

not a

ffect

un

it op

erat

ion.

Thi

s di

agno

stic

is

for i

nfor

mat

ion

only

.

(PAR

) An

auto

mat

ic re

set o

ccur

s af

ter

com

mun

icat

ion

has

been

rest

ored

.

Emer

genc

y St

op

Prob

lem

: The

Em

erge

ncy

Stop

inpu

t on

the

CG

M is

ope

n.

An o

pen

circ

uit h

as o

ccur

red

on th

e Em

erge

ncy

Stop

inpu

t cau

sed

eith

er

by a

Hig

h D

uct T

emp

T-st

at tr

ip, o

r the

op

enin

g of

fiel

d-pr

ovid

ed c

onta

cts,

sw

itch,

etc

...

“OFF

or “

Clo

se” r

eque

sts

are

issu

ed a

s ap

prop

riate

to th

e fo

llow

ing

func

tions

;a.

Com

pres

sor S

tagi

ng c

ontro

l. (A

ll C

ompr

esso

r Rel

ays,

Liq

uid

Line

So

leno

id R

elay

s, L

PC B

ypas

s R

elay

, and

HG

BP R

elay

are

de

ener

gize

d).

b. E

vapo

rato

r Sol

utio

n Pu

mp

Con

trol.

(S

(PM

R) A

man

ual r

eset

is re

quire

d af

ter

the

Emer

genc

y St

op in

put r

eclo

ses.

Th

e D

iagn

ostic

can

be

rese

t by

the

Hum

an In

terfa

ce o

r Tra

cer o

r by

cycl

ing

pow

er to

the

CG

M.

EST/

LST

Low

Tem

pera

ture

Indi

catio

n

Prob

lem

: Eith

er th

e en

terin

g so

lutio

n te

mpe

ratu

re o

r the

leav

ing

solu

tion

tem

pera

ture

has

falle

n be

low

the

heat

ta

pe te

mpe

ratu

re s

etpo

int.

An a

bnor

mal

tem

pera

ture

read

ing

of

the

chill

ed s

olut

ion

exis

ts.

No

chan

ge in

the

unit

oper

atio

n.

This

dia

gnos

tic is

for i

nfor

mat

ion

only

.

(INFO

) An

auto

mat

ic re

set o

ccur

s af

ter

the

EST

and

LST

have

bot

h ris

en to

gr

eate

r tha

n 3o

F ab

ove

the

heat

tape

te

mpe

ratu

re s

etpo

int.

52


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DE

vap

ora

tor

En

teri

ng

So

lutio

n

Te

mp

era

ture

Se

nso

r F

ail

Pro

ble

m: T

he

Eva

po

rato

r E

nte

rin

g

So

lutio

n T

em

pe

ratu

re S

en

sor

inp

ut i

s o

ut o

f ra

ng

e.

Ch

eck

: Se

nso

r re

sist

an

ce b

etw

ee

n

83

0 o

hm

s (2

00

F)

an

d 3

45

.7K

oh

ms

(-4

0 F

). I

f so

, ch

eck

fie

ld/u

nit

wir

ing

b

etw

ee

n S

en

sor

an

d C

GM

.

Th

e u

nit

is r

ea

din

g a

sig

na

l th

at i

s o

ut

of r

an

ge

for

this

inp

ut o

n th

e C

GM

. (T

em

p <

-4

0 F

or

Te

mp

> 2

00

F).

Wh

en

this

dia

gn

ost

ic is

act

ive

:a

. A "

Lo

cko

ut C

kts"

re

qu

est

is s

en

t to

the

co

mp

ress

or

sta

gin

g fu

nct

ion

. A

ll C

om

pre

sso

r R

ela

ys, L

PC

B

ypa

ss r

ela

ys, a

nd

Liq

uid

Lin

e

So

len

oid

s w

ill b

e d

e-e

ne

rgiz

ed

. M

in O

n ti

me

s, H

GB

P, a

nd

P

um

pd

ow

n w

ill b

e b

ypa

sse

d.

b. I

f Le

avi

ng

So

lutio

n R

ese

t typ

e

sele

cte

d is

En

teri

ng

So

lutio

n R

ese

t, th

en

th

e R

ese

t typ

e r

eve

rts

to

NO

NE

for

the

du

ratio

n o

f th

e fa

ilure

.c.

Eva

po

rato

r S

olu

tion

Pu

mp

C

on

tro

l is

no

t affe

cte

d.

d. T

he

He

at T

ap

e r

ela

y o

utp

ut w

ill

en

erg

ize

.

(PM

R)

A m

an

ua

l re

set i

s

req

uir

ed

afte

r th

is d

iag

no

stic

o

ccu

rs. T

he

Dia

gn

ost

ic c

an

be

re

set b

y th

e u

nit

mo

un

ted

H

um

an

Inte

rfa

ce M

od

ule

or

Tra

cer,

or

by

cycl

ing

po

we

r to

th

e C

GM

.

Eva

po

rato

r L

ea

vin

g S

olu

tion

T

em

pe

ratu

re S

en

sor

Fa

il

Pro

ble

m: T

he

Eva

po

rato

r L

ea

vin

g

So

lutio

n T

em

pe

ratu

re s

en

sor

inp

ut i

s o

ut o

f ra

ng

e.

Ch

eck

: Se

nso

r re

sist

an

ce b

etw

ee

n

83

0 o

hm

s (2

00

F)

an

d 3

45

.7K

oh

ms

(-4

0 F

). I

f so

, ch

eck

fie

ld/u

nit

wir

ing

b

etw

ee

n S

en

sor

an

d C

GM

.

Th

e u

nit

is r

ea

din

g a

sig

na

l th

at i

s o

ut

of r

an

ge

for

this

inp

ut o

n th

e C

GM

(T

em

p <

-4

0 F

or

Te

mp

> 2

00

F).

Wh

en

this

dia

gn

ost

ic is

act

ive

:a

. A "

Lo

cko

ut C

kts"

re

qu

est

is s

en

t to

the

co

mp

ress

or

sta

gin

g fu

nct

ion

. A

ll C

om

pre

sso

r R

ela

ys, L

PC

B

ypa

ss r

ela

ys, a

nd

Liq

uid

Lin

e

So

len

oid

s w

ill b

e d

e-e

ne

rgiz

ed

. M

in O

n ti

me

s, H

GB

P, a

nd

P

um

pd

ow

n w

ill b

e b

ypa

sse

d.

b. T

he

follo

win

g fu

nct

ion

s w

ill b

e

dis

ab

led

: 1

) C

om

pre

sso

r S

tag

ing

, 2

) P

roce

ss/C

om

fort

Co

olin

g,

3)

Ice

Bu

ildin

g.

c. E

vap

ora

tor

So

lutio

n P

um

p

Co

ntr

ol i

s n

ot a

ffect

ed

.

d

. Th

e H

ea

t Ta

pe

re

lay

ou

tpu

t will

e

ne

rgiz

e.

(P

MR

) A

ma

nu

al r

ese

t is

req

uir

ed

afte

r th

is d

iag

no

stic

o

ccu

rs. T

he

Dia

gn

ost

ic c

an

be

re

set b

y th

e u

nit

mo

un

ted

H

um

an

Inte

rfa

ce M

od

ule

or

Tra

cer,

or

by

cycl

ing

po

we

r to

th

e C

GM

.

53


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DE

vap

ora

tor

So

lutio

n F

low

Lo

ss

Th

e s

witc

h c

on

ne

cte

d to

the

flo

w

pro

vin

g s

witc

h in

pu

t on

a u

nit

with

a

Bra

zed

Pla

te h

ea

t exc

ha

ng

er

ha

s fa

iled

CL

OS

ED

;

or

d

uri

ng

po

we

r-u

p, a

un

it w

ith a

B

raze

d P

late

he

at e

xch

an

ge

r h

as

de

tect

ed

tha

t old

er

vers

ion

s o

f co

ntr

ol m

od

ule

s a

re in

sta

lled

.

Un

its w

ith a

Bra

zed

Pla

te h

ea

t e

xch

an

ge

r re

qu

ire

a fl

ow

pro

vin

g s

witc

h

for

fre

eze

pro

tect

ion

fun

ctio

na

lity.

Th

is

flow

pro

vin

g s

witc

h in

pu

t wa

s d

ete

cte

d

clo

sed

(sh

ort

ed

) a

t th

e ti

me

the

so

lutio

n

pu

mp

wa

s co

mm

an

de

d O

N (

On

ly o

n

un

its w

ith "

Ch

ille

r S

olu

tion

Pu

mp

Mo

de

" se

t to

AU

TO

).

A

lso

, un

its w

ith B

raze

d P

late

he

at

exc

ha

ng

er

req

uir

e n

ew

er

vers

ion

s o

f co

ntr

ol b

oa

rds

for

pro

pe

r o

pe

ratio

n.

Du

rin

g p

ow

er-

up

, th

e u

nit

de

tect

ed

at

lea

st o

ne

re

pla

cem

en

t mo

du

le w

ith a

S

oftw

are

Ve

riso

n n

um

be

r le

ss th

an

wh

at

is r

eq

uir

ed

.

A "

Lo

cko

ut a

ll C

ircu

it" r

eq

ue

st

is is

sue

d to

the

co

mp

ress

or

sta

gin

g fu

nct

ion

. Co

mp

ress

or

Re

lays

, LP

C B

ypa

ss R

ela

ys,

Liq

uid

Lin

e S

ole

no

id R

ela

ys

an

d H

GB

P r

ela

y a

re a

ll d

e-

en

erg

ize

d.

(PM

R)

A m

an

ua

l re

set i

s re

qu

ire

d

afte

r th

is d

iag

no

stic

occ

urs

. Th

e

Dia

gn

ost

ic c

an

be

re

set b

y th

e u

nit

mo

un

ted

Hu

ma

n In

terf

ace

Mo

du

le

or

Tra

cer,

or

by

cycl

ing

po

we

r to

the

C

GM

.

Fo

r S

erv

ice

Pa

rts

Re

pla

cem

en

t, p

lea

se n

ote

:(a

) F

or

pro

pe

r o

pe

ratio

n o

f un

its w

ith

Bra

zed

Pla

te h

ea

t exc

ha

ng

ers

, p

lea

se in

sure

the

follo

win

g b

oa

rd is

in

sta

lled

:

Mu

ltip

le C

om

pre

sso

r M

od

ule

(M

CM

) -

So

ftwa

re V

ers

ion

nu

mb

er

gre

ate

r th

an

or

eq

ua

l to

10

.00

or

Sin

gle

Co

mp

ress

or

Mo

du

le(S

CM

) -

So

ftwa

re V

ers

ion

nu

mb

er

gre

ate

r th

an

or

eq

ua

l to

10

.00

(b)

To

elim

ina

te th

is d

iag

no

stic

w

he

n it

is d

ue

to a

n in

com

pa

tible

S

oftw

are

Ve

rsio

n n

um

be

r(s)

, ple

ase

in

sta

ll th

e a

pp

rop

ria

te b

oa

rd(s

) p

er

the

follo

win

g:

Co

ld G

en

era

tor

Mo

du

le (

CG

M)

- S

oftw

are

Ve

rsio

n n

um

be

r g

rea

ter

tha

n o

r e

qu

al t

o 3

.00

CG

Un

it H

um

an

Inte

rfa

ce (

HI)

-

So

ftwa

re V

ers

ion

nu

mb

er

gre

ate

r th

an

or

eq

ua

l to

27

.00

54


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DE

vap

So

lutio

n F

low

Pro

vin

g S

witc

h

Pro

ble

m: S

olu

tion

Flo

w S

witc

h is

op

en

afte

r th

e S

olu

tion

Pu

mp

is O

N.

Ch

eck

: Ve

rify

So

lutio

n P

um

po

pe

ratio

n a

nd

tha

t th

e E

vap

ora

tor

So

lutio

n F

low

Sw

itch

is w

ork

ing

pro

pe

rly.

Th

e d

iag

no

stic

ca

n o

ccu

r a

t an

y tim

ea

fter

the

Eva

po

rato

r S

olu

tion

Pu

mp

Re

lay

ha

s b

ee

n r

eq

ue

ste

d O

N, a

nd

the

So

lutio

n F

low

Sw

itch

inp

ut i

s d

ete

cte

dO

PE

N (

no

flo

w)

for

5 c

on

tinu

ou

sm

inu

tes.

Wh

en

the

So

lutio

n F

low

Sw

itch

inp

ut i

s d

ete

cte

d O

PE

N(n

o fl

ow

) fo

r 6

co

ntin

uo

us

seco

nd

s, th

e U

nit

will

de

-e

ne

rgiz

eth

e fo

llow

ing

re

lays

:C

om

pre

sso

r R

ela

ys, L

PC

Byp

ass

Re

lays

, Liq

uid

Lin

eS

ole

no

ids,

an

d H

GB

P R

ela

y.

(PA

R)

An

au

tom

atic

re

set

occ

urs

afte

r th

e E

vap

So

lutio

n F

low

Pro

vin

gS

witc

h h

as

de

tect

ed

So

lutio

n fl

ow

for

6co

ntin

uo

us

seco

nd

s.

Ext

ern

al L

ea

vin

g S

olu

tion

ST

P In

pu

t F

ail

Pro

ble

m: C

GM

is r

ece

ivin

g a

n

Ext

ern

al L

ea

vin

g S

olu

tion

Se

tpo

int

(LS

S)

Inp

ut s

ign

al w

hic

h is

ou

t of

ran

ge

. C

he

ck fi

eld

/un

it w

irin

g

be

twe

en

CG

M a

nd

Ext

ern

al

Le

avi

ng

So

lutio

n S

etp

oin

t p

ote

ntio

me

ter.

Th

e E

xte

rna

l Le

avi

ng

So

lutio

n S

etp

oin

t (L

SS

) is

de

sig

na

ted

as

the

Le

avi

ng

S

olu

tion

Se

tpo

int s

ou

rce

an

d it

is o

ut o

f ra

ng

e. O

ut o

f ra

ng

e is

de

fine

d a

s o

ne

of

the

follo

win

g:

a)

Ext

ern

al L

SS

> 6

5 d

eg

F o

r <

51

de

g

F fo

r u

nit

with

LS

S R

an

ge

51

-65

de

g F

.b

) E

xte

rna

l LS

S >

50

de

g F

or

< 4

0 d

eg

F

for

un

it w

ith L

SS

Ra

ng

e 4

0-5

0 d

eg

F.

c) E

xte

rna

l LS

S >

39

de

g F

or

< 3

0 d

eg

F

for

un

it w

ith L

SS

Ra

ng

e 3

0-3

9 d

eg

F.

d)

Ext

ern

al L

SS

> 2

9 d

eg

F o

r <

20

de

g

F fo

r u

nit

with

LS

S R

an

ge

20

-29

de

g F

.e

) E

xte

rna

l LS

S >

75

de

g F

or

< 1

0 d

eg

F

for

un

it w

ith L

SS

Ra

ng

e S

PE

CIA

L.

Wh

ile th

e d

iag

no

stic

is a

ctiv

e,

the

Le

avi

ng

So

lutio

n S

etp

oin

t w

ill r

eve

rt to

usi

ng

the

de

fau

lt (H

I) L

ea

vin

g S

olu

tion

Se

tpo

int.

(PA

R)

An

au

tom

atic

re

set o

ccu

rs

afte

r th

e E

xte

rna

l Le

avi

ng

So

lutio

n

Se

tpo

int r

etu

rns

to it

s a

llow

ab

le

ran

ge

. In

ord

er

to p

reve

nt r

ap

id

cycl

ing

of t

he

Dia

gn

ost

ic, t

he

re is

a

10

se

con

d d

ela

y b

efo

re th

e

au

tom

atic

re

set.

55


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DG

BA

S 0

-5V

DC

Mod

ule

Com

m

Fai

lure

Pro

blem

: The

CG

M h

as lo

st

com

mun

icat

ions

with

the

GB

AS

M

odul

e.

Che

ck: C

heck

fiel

d/un

it w

iring

be

twee

n C

GM

and

GB

AS

.

The

CG

M h

as lo

st c

omm

unic

atio

ns

with

the

GB

AS

Mod

ule.

The

UC

M w

ill in

itiat

e th

e fo

llow

ing

actio

ns;

a. If

the

Dem

and

Lim

it in

put w

as

clo

sed

prio

r to

com

mun

icat

ions

lo

ss, t

hen

the

Dem

and

Lim

it

com

man

ds is

sued

to

the

C

ompr

esso

r S

tagi

ng fu

nctio

n

will

be

canc

elle

d.b.

If a

ny o

f the

GB

AS

set

poin

t

con

trol

par

amet

ers

are

the

H

I-se

lect

ed s

etpo

int s

ourc

es,

th

en th

ose

setp

oint

s w

ill r

ever

t

to th

e de

faul

t HI s

etpo

ints

.c.

Any

act

ive

GB

AS

out

put

co

ntro

l par

amet

ers

will

be

ig

nore

d.d.

A fa

ilsaf

e fu

nctio

n in

the

GB

AS

m

odul

e w

ill c

ause

all

GB

AS

ou

tput

s to

be

zero

ed a

nd

de-e

ner g

ized

.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r co

mm

unic

atio

n ha

s be

en

rest

ored

.

GB

AS

0-5

VD

C M

odul

e C

omm

F

ailu

re

Pro

blem

: The

CG

M h

as lo

st

com

mun

icat

ions

with

the

GB

AS

M

odul

e.

Che

ck: C

heck

fiel

d/un

it w

iring

be

twee

n C

GM

and

GB

AS

.

The

CG

M h

as lo

st c

omm

unic

atio

ns

with

the

GB

AS

Mod

ule.

The

UC

M w

ill in

itiat

e th

e fo

llow

ing

actio

ns;

a. If

the

Dem

and

Lim

it in

put w

as

clo

sed

prio

r to

com

mun

icat

ions

lo

ss, t

hen

the

Dem

and

Lim

it

com

man

ds is

sued

to

the

C

ompr

esso

r S

tagi

ng fu

nctio

n

will

be

canc

elle

d.b.

If a

ny o

f the

GB

AS

set

poin

t

con

trol

par

amet

ers

are

the

H

I-se

lect

ed s

etpo

int s

ourc

es,

th

en th

ose

setp

oint

s w

ill r

ever

t

to th

e de

faul

t HI s

etpo

ints

.c.

Any

act

ive

GB

AS

out

put

co

ntro

l par

amet

ers

will

be

ig

nore

d.d.

A fa

ilsaf

e fu

nctio

n in

the

GB

AS

m

odul

e w

ill c

ause

all

GB

AS

ou

tput

s to

be

zero

ed a

nd

de-e

nerg

ized

.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r co

mm

unic

atio

n ha

s be

en

rest

ored

.

56


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DH

ot S

tart

Loa

d Li

mit

(Aut

o)

Pro

blem

: The

Lea

ving

Sol

utio

n T

empe

ratu

re is

too

hot.

Hot

Ope

ratio

n R

espo

nse

is s

et to

"50

%

CA

PA

CIT

Y P

ER

CK

T, A

UT

O R

ES

ET

D

IAG

". T

he L

eavi

ng S

olut

ion

Tem

p ex

ceed

ed th

e H

ot S

tart

Loa

d Li

mit

Set

poin

t afte

r th

e H

ot S

tart

Tim

e In

terv

al

expi

red.

Whi

le th

is d

iagn

ostic

is a

ctiv

e, th

e se

cond

com

pres

sor

on e

ach

refr

iger

ant c

ircui

t is

shut

off

and/

or p

reve

nted

from

sta

ging

O

N.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r th

e Le

avin

g S

olut

ion

Tem

pera

ture

de

crea

ses

5 de

g F

or

mor

e be

low

the

Hot

Sta

rt L

oad

Lim

it S

etpo

int.

Hot

Sta

rt L

oad

Lim

it (I

nfo)

Pro

blem

: The

Lea

ving

Sol

utio

n T

empe

ratu

re is

too

hot.

Hot

Ope

ratio

n R

espo

nse

is s

et to

"A

LLO

W N

OR

MA

L O

PE

RA

TIO

N, I

NF

O

RE

SE

T D

IAG

". T

he L

eavi

ng S

olut

ion

Tem

p ex

ceed

ed th

e H

ot S

tart

Loa

d Li

mit

Set

poin

t afte

r th

e H

ot S

tart

Tim

e In

terv

al

expi

red.

No

chan

ge in

uni

t ope

ratio

n oc

curs

. T

his

diag

nost

ic is

for

info

rmat

ion

only

.

(IN

FO

) A

n au

tom

atic

res

et o

ccur

s af

ter

the

Leav

ing

Sol

utio

n T

empe

ratu

re

decr

ease

s 5

deg

F o

r m

ore

belo

w th

e H

ot S

tart

Loa

d Li

mit

Set

poin

t.

Hot

Sta

rt L

oad

Lim

it (M

an)

Pro

blem

: The

Lea

ving

Sol

utio

n T

empe

ratu

re is

too

hot.

Hot

Ope

ratio

n R

espo

nse

is s

et to

"S

HU

T O

FF

CO

MP

RE

SS

OR

S,

MA

NU

AL

RE

SE

T D

IAG

". T

he L

eavi

ng

Sol

utio

n T

emp

exce

eded

the

Hot

Sta

rt

Load

Lim

it S

etpo

int a

fter

the

Hot

Sta

rt

Tim

e In

terv

al e

xpire

d.

A "

lock

out a

ll C

kts"

req

uest

is

issu

ed to

the

com

pres

sor

stag

ing

func

tion.

The

Uni

t will

dee

nerg

ize

the

follo

win

g re

lays

: Com

pres

sor

Rel

ays,

LP

C B

ypas

s R

elay

s,

Liqu

id L

ine

Sol

enoi

ds, a

nd H

GB

P

Rel

ay.

Com

fort

/Pro

cess

Coo

ling,

an

d Ic

e B

uild

ing

are

term

inat

ed

and

prev

ente

d fr

om o

ccur

ring

until

the

diag

nost

ic c

ondi

tion

is

clea

red.

(PM

R)

A m

anua

l res

et is

req

uire

d af

ter

this

dia

gnos

tic o

ccur

s. T

he D

iagn

ostic

ca

n be

res

et b

y th

e un

it m

ount

ed

Hum

an In

terf

ace

Mod

ule

or T

race

r, o

r by

cyc

ling

pow

er to

the

CG

M.

Hot

Sta

rt L

oad

Lim

it S

etpo

int F

ail

Pro

blem

: The

Hot

Sta

rt L

oad

Lim

it S

etpo

int i

s ou

t of r

ange

.

Che

ck:

If H

ot S

tart

Loa

d Li

mit

Set

poin

t Sou

rce

is a

ssig

ned

to

eith

er G

BA

S m

odul

e, b

ut th

is

setp

oint

has

not

bee

n as

sign

ed to

on

e of

that

GB

AS

mod

ule’

s an

alog

inpu

ts, t

his

diag

nost

ic c

an

occu

r.

The

uni

t is

read

ing

a si

gnal

that

is o

ut o

f ra

nge

for

the

Hot

Sta

rt L

oad

Lim

it S

etpo

int.

The

def

ault

(HI)

Hot

Sta

rt L

oad

Lim

it S

etpo

int w

ill b

ecom

e th

e ac

tive

setp

oint

whi

le th

is

diag

nost

ic is

act

ive.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r th

e de

sign

ated

Hot

Sta

rt L

oad

Lim

it S

etpo

int s

ourc

e se

nds

a si

gnal

that

is

with

in r

ange

for

10 c

ontin

uous

sec

onds

, or

afte

r a

diffe

rent

set

poin

t sou

rce

is

user

-def

ined

.

57


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DIB

TS

Adj

uste

d to

Mai

ntai

n M

in D

iff

Pro

blem

: The

act

ive

Ice

Bui

ld

Ter

min

ate

Set

poin

t (IB

TS

) is

cl

oser

to th

e Le

avin

g S

olut

ion

Cut

out T

emp

Set

poin

t tha

n th

e ca

lcul

ated

Min

imum

Diff

eren

tial.

The

act

ive

Ice

Bui

ld T

erm

inat

e S

etpo

int

and

the

Leav

ing

Sol

utio

n C

utou

t Tem

p S

etpo

int a

re to

o cl

ose

toge

ther

for

prop

er

unit

oper

atio

n.

The

act

ive

Ice

Bui

ld T

erm

inat

e S

etpo

int i

s se

t to

the

Leav

ing

Sol

utio

n C

utou

t Tem

p S

etpo

int

plus

the

larg

er o

f 1)

calc

ulat

ed

Min

imum

Diff

eren

tial v

alue

, or

2) 6

.5 d

eg F

.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r th

e di

ffere

nce

betw

een

the

activ

e Ic

e B

uild

Ter

min

ate

Set

poin

t and

the

Leav

ing

Sol

utio

n C

utou

t Tem

p S

etpo

int

mee

ts th

e m

inim

um d

iffer

ence

re

quire

men

t.

Ice

Bui

ld T

erm

inat

e S

etpo

int F

ail

Pro

blem

: The

Ice

Bui

ld T

erm

inat

e S

etpo

int i

s ou

t of r

ange

.

Che

ck:

If Ic

e B

uild

Ter

min

ate

Set

poin

t Sou

rce

is a

ssig

ned

to

eith

er G

BA

S m

odul

e, b

ut th

is

setp

oint

has

not

bee

n as

sign

ed to

on

e of

that

GB

AS

mod

ule’

s an

alog

in

puts

, thi

s di

agno

stic

can

occ

ur.

The

uni

t is

read

ing

a si

gnal

that

is o

ut o

f ra

nge

for

the

Ice

Bui

ld T

erm

inat

e S

etpo

int.

The

def

ault

(HI)

Ice

Bui

ld

Ter

min

ate

Set

poin

t will

bec

ome

the

activ

e se

tpoi

nt w

hile

this

di

agno

stic

is a

ctiv

e.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r th

e de

sign

ated

Ice

Bui

ld T

erm

inat

e S

etpo

int s

ourc

e se

nds

a si

gnal

that

is

with

in r

ange

for

10 c

ontin

uous

sec

onds

, or

afte

r a

diffe

rent

set

poin

t sou

rce

is

user

-def

ined

.

Leav

ing

Sol

utio

n S

etpo

int F

ail

Pro

blem

: The

des

igna

ted

Leav

ing

Sol

utio

n S

etpo

int i

s ou

t of r

ange

.

If ei

ther

GB

AS

mod

ule

is

desi

gnat

ed a

s th

e Le

avin

g S

olut

ion

Set

poin

t sou

rce,

ver

ify th

at G

BA

S

mod

ule

has

this

inpu

t ass

igne

d to

on

e of

it’s

ana

log

inpu

ts.

The

des

igna

ted

Leav

ing

Sol

utio

n S

etpo

int

sour

ce is

out

of r

ange

. O

ut o

f ran

ge is

de

fined

as

one

of th

e fo

llow

ing:

a) L

SS

> 6

5 de

g F

or

< 5

1 de

g F

for

unit

with

LS

S R

ange

51-

65 d

eg F

.b)

LS

S >

50

deg

F o

r <

40

deg

F fo

r un

it w

ith L

SS

Ran

ge 4

0-50

deg

F.

c) L

SS

> 3

9 de

g F

or

< 3

0 de

g F

for

unit

with

LS

S R

ange

30-

39 d

eg F

.d)

LS

S >

29

deg

F o

r <

20

deg

F fo

r un

it w

ith L

SS

Ran

ge 2

0-29

deg

F.

e) L

SS

> 7

5 de

g F

or

< 1

0 de

g F

for

unit

with

LS

S R

ange

SP

EC

IAL.

Whi

le th

e di

agno

stic

is a

ctiv

e,

the

Leav

ing

Sol

utio

n S

etpo

int

will

rev

ert t

o us

ing

the

defa

ult

(HI)

Lea

ving

Sol

utio

n S

etpo

int.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r th

e de

sign

ated

Lea

ving

Sol

utio

n S

etpo

int r

etur

ns to

its

allo

wab

le r

ange

. In

ord

er to

pre

vent

rap

id c

yclin

g of

the

Dia

gnos

tic, t

here

is a

10

seco

nd d

elay

be

fore

the

auto

mat

ic r

eset

.

Liqu

id P

ress

ure

Sen

sor

Fai

l

Circ

uit 1

Pro

blem

: Circ

uit 1

Sat

urat

ed L

iqui

d Li

ne P

ress

ure

sens

or in

put i

s ou

t of

ran

ge.

Che

ck: C

heck

fiel

d/un

it w

iring

be

twee

n S

enso

r an

d S

SM

.

The

uni

t is

read

ing

a si

gnal

that

is o

ut o

f ra

nge

for

the

Circ

uit 1

Sat

urat

ed L

iqui

d Li

ne P

ress

ure

Sen

sor

inpu

t on

the

SS

M.

(Pre

ssur

e <

0 P

SIG

or

Pre

ssur

e >

400

P

SIG

).

The

Sup

erhe

at/S

ubco

ol

calc

ulat

ion

is in

valid

and

the

vaiu

es a

re s

et to

zer

o. N

o ot

her

chan

ge in

uni

t ope

ratio

n oc

curs

. T

his

diag

nost

ic is

for

info

rmat

ion

only

.

(IN

FO

) A

n au

tom

atic

res

et o

ccur

s af

ter

the

Circ

uit 1

Sat

urat

ed L

iqui

d P

ress

ure

Sen

sor

inpu

t ret

urns

to it

s al

low

able

ra

nge.

In

orde

r to

pre

vent

rap

id c

yclin

g of

the

Dia

gnos

tic, t

here

is a

10

seco

nd

dela

y be

fore

the

auto

mat

ic r

eset

.

58


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DL

iqu

id P

res

su

re S

en

so

r F

ail

Cir

cuit

2(C

ircu

it #

2 4

0-6

0 T

on

un

its o

nly

)

Pro

ble

m: C

ircu

it 2

Sa

tura

ted

Liq

uid

L

ine

Pre

ss

ure

se

ns

or

inp

ut i

s o

ut o

f ra

ng

e.

Ch

eck

: Ch

eck

fie

ld/u

nit

wir

ing

b

etw

ee

n S

en

so

r a

nd

SS

M.

Th

e u

nit

is r

ea

din

g a

sig

na

l th

at i

s o

ut

of r

an

ge

for

the

Cir

cuit

2 S

atu

rate

d

Liq

uid

Lin

e P

res

su

re S

en

so

r in

pu

t on

th

e S

SM

. (P

res

su

re <

0 P

SIG

or

Pre

ss

ure

> 4

00

PS

IG).

Th

e S

up

erh

ea

t/Su

bco

ol

calc

ula

tion

is in

valid

an

d th

e

vaiu

es

are

se

t to

ze

ro.

No

oth

er

cha

ng

e in

un

it o

pe

ratio

n o

ccu

rs.

Th

is d

iag

no

stic

is fo

r in

form

atio

n

on

ly.

(IN

FO

) A

n a

uto

ma

tic r

es

et o

ccu

rs

afte

r th

e C

ircu

it 2

Sa

tura

ted

Liq

uid

P

res

su

re S

en

so

r in

pu

t re

turn

s to

its

a

llow

ab

le r

an

ge

. In

ord

er

to p

reve

nt

rap

id c

yclin

g o

f th

e D

iag

no

stic

, th

ere

is

a 1

0 s

eco

nd

de

lay

be

fore

the

a

uto

ma

tic r

es

et.

Lo

w A

mb

ien

t Eva

po

rato

r S

olu

tion

P

um

p O

verr

ide

Pro

ble

m: O

uts

ide

Air

Te

mp

too

low

, re

qu

es

t So

lutio

n P

um

p to

ru

n to

ke

ep

So

lutio

n m

ovi

ng

.

Th

e O

uts

ide

Air

(A

mb

ien

t)

tem

pe

ratu

re is

be

low

the

Lo

w

Am

bie

nt E

vap

Pu

mp

Ove

rrid

e T

em

p

Se

tpo

int.

Th

e E

vap

ora

tor

So

lutio

n P

um

p

Re

lay

is e

ne

rgiz

ed

wh

ile th

is

con

diti

on

exi

sts

.

(PA

R)

An

au

tom

atic

re

se

t occ

urs

a

fter

the

Ou

tsid

e A

ir T

em

p

incr

ea

se

s 5

de

g F

or

mo

re a

bo

ve

the

Lo

w A

mb

ien

t Eva

po

rato

r P

um

p

Ove

rrid

e T

em

p S

etp

oin

t.

Lo

w S

olu

tion

Cu

tou

t Te

mp

era

ture

(A

uto

)

Pro

ble

m: T

he

Eva

po

rato

r L

ea

vin

g o

r E

nte

rin

g S

olu

tion

Te

mp

era

ture

is to

o

low

.

Wh

ile n

o c

om

pre

ss

ors

we

re r

un

nin

g,

the

Eva

po

rato

r S

olu

tion

T

em

pe

ratu

re(s

) w

en

t be

low

the

Lo

w

So

lutio

n C

uto

ut T

em

p S

etp

oin

t.

Wh

ile th

is d

iag

no

stic

is a

ctiv

e,

Co

mp

res

so

rs a

re p

reve

nte

d

fro

m s

tag

ing

on

. T

he

Un

it w

ill

de

en

erg

ize

the

follo

win

g:

Co

mp

res

so

r R

ela

ys, L

PC

B

ypa

ss

Re

lays

, Liq

uid

Lin

e

So

len

oid

s, a

nd

HG

BP

Re

lay.

(PA

R)

An

au

tom

atic

re

se

t occ

urs

a

fter

the

Eva

po

rato

r S

olu

tion

T

em

pe

ratu

re(s

) ri

se

s 4

de

g F

or

mo

re a

bo

ve th

e L

ow

So

lutio

n C

uto

ut

Te

mp

era

ture

Se

tpo

int.

Lo

w S

olu

tion

Cu

tou

t Te

mp

era

ture

(M

an

)

Pro

ble

m: T

he

Eva

po

rato

r L

ea

vin

g o

r E

nte

rin

g S

olu

tion

Te

mp

era

ture

is to

o

low

.

Wh

ile c

om

pre

ss

ors

we

re r

un

nin

g, t

he

E

vap

ora

tor

So

lutio

n T

em

pe

ratu

re(s

) w

en

t be

low

the

Lo

w S

olu

tion

Cu

tou

t T

em

pe

ratu

re S

etp

oin

t.

A "

Lo

cko

ut a

ll C

ircu

its"

req

ue

st i

s

iss

ue

d to

the

Co

mp

res

so

r S

tag

ing

Fu

nct

ion

. C

om

pre

ss

ors

a

re p

reve

nte

d fr

om

sta

gin

g o

n

an

d th

e U

nit

will

de

-en

erg

ize

the

fo

llow

ing

re

lays

: Co

mp

res

so

r R

ela

ys, L

PC

Byp

as

s R

ela

ys,

Liq

uid

Lin

e S

ole

no

ids

, an

d

HG

BP

Re

lay.

(PM

R)

A m

an

ua

l re

se

t is

re

qu

ire

d

afte

r th

is d

iag

no

stic

occ

urs

. Th

e

Dia

gn

os

tic c

an

be

re

se

t by

the

un

it m

ou

nte

d H

um

an

Inte

rfa

ce M

od

ule

o

r T

race

r, o

r b

y cy

clin

g p

ow

er

to th

e

CG

M.

Lo

w P

res

su

re C

on

tro

l Op

en

-

Cir

cuit

1

Pro

ble

m: T

he

re

frig

era

nt i

n C

ircu

it 1

is

co

ld a

nd

ma

y ca

us

e th

e S

olu

tion

in

the

Ch

ille

r b

arr

el t

o b

eco

me

too

co

ld.

Als

o, t

he

re m

ay

be

a s

tate

of

cha

rge

iss

ue

with

Cir

cuit

1.

With

on

e o

r m

ore

co

mp

res

so

rs

run

nin

g, t

he

hig

he

r p

res

su

re o

f th

e

two

LP

C s

witc

he

s o

n C

ircu

it 1

ha

s

op

en

ed

6 ti

me

s w

ith th

e L

PC

Byp

as

s

rela

y d

e-e

ne

rgiz

ed

, or

it w

as

op

en

at

the

tim

e th

e L

PC

Byp

as

s R

ela

y d

e-

en

erg

ize

d.

On

a s

tan

da

rd u

nit

this

is

the

45

PS

IG L

PC

sw

itch

, bu

t ca

n b

e

20

PS

IG o

r lo

we

r o

n u

nits

with

a lo

we

r L

ea

vin

g S

olu

tion

Se

tpo

int r

an

ge

.

A “

Lo

cko

ut C

ircu

it #

1”

req

ue

st i

s

iss

ue

d to

the

Co

mp

res

so

r S

tag

ing

Co

ntr

ol f

un

ctio

n.

Th

e

Co

mp

res

so

r R

ela

ys, L

PC

B

ypa

ss

Re

lay,

Liq

uid

Lin

e

So

len

oid

Re

lay,

an

d H

ot G

as

B

ypa

ss

Re

lay

for

Cir

cuit

1 a

re a

ll d

e-e

ne

rgiz

ed

.

(PM

R)

A m

an

ua

l re

se

t is

re

qu

ire

d

an

ytim

e a

fter

the

Dia

gn

os

tic is

se

t. T

he

Dia

gn

os

tic c

an

be

re

se

t by

the

H

um

an

Inte

rfa

ce o

r T

race

r, o

r b

y cy

clin

g p

ow

er

to th

e C

GM

.

59


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DLo

w P

ress

ure

Con

trol

Ope

n -

C

ircui

t 2 (

Circ

uit #

2 40

-60

Ton

uni

ts

only

)

Pro

blem

: The

ref

riger

ant i

n C

ircui

t 2

is c

old

and

may

cau

se th

e S

olut

ion

in

the

Chi

ller

barr

el to

bec

ome

too

cold

. A

lso,

ther

e m

ay b

e a

stat

e of

cha

rge

issu

e w

ith C

ircui

t 2.

With

one

or

mor

e co

mpr

esso

rs

runn

ing,

the

high

er p

ress

ure

of th

e tw

o LP

C s

witc

hes

on C

ircui

t 2 h

as

open

ed 6

tim

es w

ith th

e LP

C B

ypas

s re

lay

de-e

nerg

ized

, or

it w

as o

pen

at

the

time

the

LPC

Byp

ass

Rel

ay d

e-en

ergi

zed.

On

a st

anda

rd u

nit t

his

is

the

45 P

SIG

LP

C s

witc

h, b

ut c

an b

e 20

PS

IG o

r lo

wer

on

units

with

a lo

wer

Le

avin

g S

olut

ion

Set

poin

t ran

ge.

A “

Lock

out C

ircui

t # 2

” re

ques

t is

issu

ed to

the

Com

pres

sor

Sta

ging

C

ontr

ol fu

nctio

n. T

he C

ompr

esso

r R

elay

s, L

PC

Byp

ass

Rel

ay, L

iqui

d Li

ne S

olen

oid

Rel

ay, a

nd H

ot G

as

Byp

ass

Rel

ay fo

r C

ircui

t 2 a

re a

ll de

-ene

rgiz

ed.

(PM

R)

A m

anua

l res

et is

req

uire

d an

ytim

e af

ter

the

Dia

gnos

tic is

set

. T

he D

iagn

ostic

can

be

rese

t by

the

Hum

an In

terf

ace

or T

race

r, o

r by

cyc

ling

pow

er to

the

CG

M.

LSS

Adj

uste

d to

Mai

ntai

n M

inim

um

Diff

eren

tial

Pro

blem

: The

act

ive

Leav

ing

Sol

utio

n S

etpo

int (

LSS

) is

clo

ser

to th

e Le

avin

g S

olut

ion

Cut

out T

emp

Set

poin

t tha

n th

e ca

lcul

ated

M

inim

um D

iffer

entia

l.

The

act

ive

Leav

ing

Sol

utio

n S

etpo

int

and

the

Leav

ing

Sol

utio

n C

utou

t T

empe

ratu

re S

etpo

int a

re to

o cl

ose

toge

ther

for

prop

er u

nit o

pera

tion.

The

act

ive

Leav

ing

Sol

utio

n S

etpo

int i

s se

t to

the

Leav

ing

Sol

utio

n C

utou

t Tem

pera

ture

S

etpo

int p

lus

the

calc

ulat

ed

Min

imum

Diff

eren

tial v

alue

.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r th

e di

ffere

nce

betw

een

the

activ

e Le

avin

g S

olut

ion

Set

poin

t an

d th

e Le

avin

g S

olut

ion

Cut

out

Tem

pera

ture

Set

poin

t mee

ts th

e m

inim

um d

iffer

ence

req

uire

men

t.

MC

M C

omm

unic

atio

ns F

ailu

re(4

0-60

Ton

uni

ts o

nly)

Pro

blem

: The

CG

M h

as lo

st

com

mun

icat

ions

with

the

MC

M.

Che

ck: C

heck

fiel

d/un

it w

iring

be

twee

n C

GM

and

MC

M.

The

CG

M h

as lo

st c

omm

unic

atio

ns

with

the

MC

M.

A “

Lock

out”

req

uest

is s

ent t

o th

e C

ompr

esso

r S

tagi

ng C

ontr

ol

func

tion.

The

Liq

uid

Line

Sol

enoi

d R

elay

s an

d LP

C B

yp-e

nerg

ized

.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r co

mm

unic

atio

n ha

s be

en

rest

ored

.

Sat

Liq

uid

Tem

pera

ture

Sen

sor

Fai

l C

ircui

t 1

Pro

blem

: Circ

uit 1

Sat

urat

ed L

iqui

d Li

ne T

empe

ratu

re s

enso

r in

put i

s ou

t of

ran

ge.

Che

ck: S

enso

r re

sist

ance

bet

wee

n 83

0 oh

ms

(200

F)

and

345.

7Koh

ms

(-

40 F

). I

f not

, che

ck fi

eld/

unit

wiri

ng

betw

een

Sen

sor

and

SC

M/M

CM

.

The

Sup

erhe

at/S

ubco

ol M

odul

e is

in

stal

led

and

the

unit

is r

eadi

ng a

si

gnal

that

is o

ut o

f ran

ge fo

r th

e C

ircui

t 1 S

atur

ated

Liq

uid

Line

T

empe

ratu

re S

enso

r in

put o

n th

e S

CM

/MC

M. (

Tem

p <

-55

F o

r T

emp

>

209

F).

The

Sup

erhe

at/S

ubco

ol c

alcu

latio

n is

inva

lid a

nd th

e va

lues

are

set

to

zero

. N

o ot

her

chan

ge in

uni

t op

erat

ion

occu

rs.

Thi

s di

agno

stic

is

for

info

rmat

ion

only

.

(IN

FO

) A

n au

tom

atic

res

et o

ccur

s af

ter

the

Circ

uit 1

Sat

urat

ed L

iqui

d T

empe

ratu

re S

enso

r in

put r

etur

ns

to it

s al

low

able

ran

ge.

In o

rder

to

prev

ent r

apid

cyc

ling

of th

e D

iagn

ostic

, the

re is

a 1

0 se

cond

de

lay

befo

re th

e au

tom

atic

res

et.

60


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DS

atur

ated

Liq

uid

Tem

pera

ture

S

enso

r F

ail -

Circ

uit 2

(Circ

uit #

2 40

-60

Ton

uni

ts o

nly)

Pro

blem

: Circ

uit 2

Sat

urat

ed L

iqui

d Li

ne T

empe

ratu

re s

enso

r in

put i

s ou

t of

ran

ge.

Che

ck: S

enso

r re

sist

ance

bet

wee

n 83

0 oh

ms

(200

F)

and

345.

7Koh

ms

(-

40 F

). I

f not

, che

ck fi

eld/

unit

wiri

ng

betw

een

Sen

sor

and

MC

M.

The

Sup

erhe

at/S

ubco

ol M

odul

e is

in

stal

led

and

the

unit

is r

eadi

ng a

si

gnal

that

is o

ut o

f ran

ge fo

r th

e C

ircui

t 2 S

atur

ated

Liq

uid

Line

T

empe

ratu

re S

enso

r in

put o

n th

e M

CM

. (T

emp

< -

40 F

or

Tem

p >

200

F

).

The

Sup

erhe

at/S

ubco

ol

calc

ulat

ion

is in

valid

and

the

valu

es a

re s

et to

zer

o. N

o ot

her

chan

ge in

uni

t ope

ratio

n oc

curs

. T

his

diag

nost

ic is

for

info

rmat

ion

only

.

(IN

FO

) A

n au

tom

atic

res

et o

ccur

s af

ter

the

Circ

uit 2

Sat

urat

ed L

iqui

d T

empe

ratu

re S

enso

r in

put r

etur

ns to

its

allo

wab

le r

ange

. In

ord

er to

pr

even

t rap

id c

yclin

g of

the

Dia

gnos

tic, t

here

is a

10

seco

nd

dela

y be

fore

the

auto

mat

ic r

eset

.

SC

M C

omm

unic

atio

ns F

ailu

re(2

0-30

Ton

uni

ts o

nly)

Pro

blem

: The

CG

M h

as lo

st

com

mun

icat

ions

with

the

SC

M.

Che

ck: C

heck

fiel

d/un

it w

iring

be

twee

n C

GM

and

SC

M.

The

CG

M h

as lo

st c

omm

unic

atio

ns

with

the

SC

M.

A “

Lock

out”

req

uest

is s

ent t

o th

e C

ompr

esso

r S

tagi

ng C

ontr

ol

func

tion.

The

Liq

uid

Line

S

olen

oid

Rel

ays

and

LPC

B

ypas

s R

elay

s ar

e de

-en

ergi

zed.

A fa

ilsaf

e fu

nctio

n in

th

e S

CM

will

cau

se a

ll S

CM

ou

tput

s to

be

zero

ed a

nd d

e-en

ergi

zed.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r co

mm

unic

atio

n ha

s be

en

rest

ored

.

Suc

tion

Tem

p S

enso

r F

ail -

Circ

uit 1

Pro

blem

: Circ

uit 1

Suc

tion

Line

Tem

p se

nsor

inpu

t is

out o

f ran

ge.

Che

ck: S

enso

r re

sist

ance

bet

wee

n 83

0 oh

ms

(200

F)

and

345.

7Koh

ms

(-

40 F

). I

f not

, che

ck fi

eld/

unit

wiri

ng

betw

een

Sen

sor

and

SC

M/M

CM

.

The

Sup

erhe

at/S

ubco

ol M

odul

e is

in

stal

led

and

the

unit

is r

eadi

ng a

si

gnal

that

is o

ut o

f ran

ge fo

r th

e C

ircui

t 1 S

uctio

n Li

ne T

emp

Sen

sor

inpu

t on

the

SC

M/M

CM

. (T

emp

< -

40 F

or

Tem

p >

200

F).

The

Sup

erhe

at/S

ubco

ol

calc

ulat

ion

is in

valid

and

the

valu

es a

re s

et to

zer

o. N

o ot

her

chan

ge in

uni

t ope

ratio

n oc

curs

. T

his

diag

nost

ic is

for

info

rmat

ion

only

.

(IN

FO

) A

n au

tom

atic

res

et o

ccur

s af

ter

the

Circ

uit 1

Suc

tion

Line

Tem

p S

enso

r in

put r

etur

ns to

its

allo

wab

le

rang

e. I

n or

der

to p

reve

nt r

apid

cy

clin

g of

the

Dia

gnos

tic, t

here

is a

10

sec

ond

dela

y be

fore

the

auto

mat

ic r

eset

.

Suc

tion

Tem

p S

enso

r F

ail

- C

ircui

t 2(C

kt #

2 40

-60

Ton

uni

ts o

nly)

Pro

blem

: Circ

uit 2

Suc

tion

Line

Tem

p se

nsor

inpu

t is

out o

f ran

ge.

Che

ck: S

enso

r re

sist

ance

bet

wee

n 83

0 oh

ms

(200

F)

and

345.

7Koh

ms

(-

40 F

). I

f not

, che

ck fi

eld/

unit

wiri

ng

betw

een

Sen

sor

and

MC

M.

The

Sup

erhe

at/S

ubco

ol M

odul

e is

in

stal

led

and

the

unit

is r

eadi

ng a

si

gnal

that

is o

ut o

f ran

ge fo

r th

e C

ircui

t 2 S

uctio

n Li

ne T

empe

ratu

re

Sen

sor

inpu

t on

the

MC

M. (

Tem

p <

-40

F o

r T

emp

> 2

00 F

).

The

Sup

erhe

at/S

ubco

ol

calc

ulat

ion

is in

valid

and

the

valu

es a

re s

et to

zer

o. N

o ot

her

chan

ge in

uni

t ope

ratio

n oc

curs

. T

his

diag

nost

ic is

for

info

rmat

ion

only

.

(IN

FO

) A

n au

tom

atic

res

et o

ccur

s af

ter

the

Circ

uit 2

Suc

tion

Line

T

empe

ratu

re S

enso

r in

put r

etur

ns to

its

allo

wab

le r

ange

. In

ord

er to

pr

even

t rap

id c

yclin

g of

the

Dia

gnos

tic, t

here

is a

10

seco

nd

dela

y be

fore

the

auto

mat

ic r

eset

.

61


IAG

NO

ST

IC D

ISP

LA

YE

DR

EA

SO

N F

OR

DIA

GN

OS

TIC

UC

M’S

RE

AC

TIO

NR

ES

ET

RE

QU

IRE

DS

uctio

n T

empe

ratu

re S

enso

r F

ail -

C

ircui

t 1

Pro

blem

: Circ

uit 1

Suc

tion

Line

T

empe

ratu

re s

enso

r in

put i

s ou

t of

rang

e.

Che

ck: S

enso

r re

sist

ance

bet

wee

n 83

0 oh

ms

(200

F)

and

345.

7Koh

ms

(-

40 F

). I

f not

, che

ck fi

eld/

unit

wiri

ng

betw

een

Sen

sor

and

SC

M/M

CM

.

The

Sup

erhe

at/S

ubco

ol M

odul

e is

in

stal

led

and

the

unit

is r

eadi

ng a

si

gnal

that

is o

ut o

f ran

ge fo

r th

e C

ircui

t 1 S

uctio

n Li

ne T

empe

ratu

re

Sen

sor

inpu

t on

the

SC

M/M

CM

. (T

emp

< -

40 F

or

Tem

p >

200

F).

The

Sup

erhe

at/S

ubco

ol

calc

ulat

ion

is in

valid

and

the

valu

es a

re s

et to

zer

o. N

o ot

her

chan

ge in

uni

t ope

ratio

n oc

curs

. T

his

diag

nost

ic is

for

info

rmat

ion

only

.

(IN

FO

) A

n au

tom

atic

res

et o

ccur

s af

ter

the

Circ

uit 1

Suc

tion

Line

T

empe

ratu

re S

enso

r in

put r

etur

ns to

its

allo

wab

le r

ange

. In

ord

er to

pr

even

t rap

id c

yclin

g of

the

Dia

gnos

tic, t

here

is a

10

seco

nd

dela

y be

fore

the

auto

mat

ic r

eset

.

Suc

tion

Tem

pera

ture

Sen

sor

Fai

l -

Circ

uit 2

(Ckt

#2

40-6

0 T

on u

nits

onl

y)

Pro

blem

: Circ

uit 2

Suc

tion

Line

T

empe

ratu

re s

enso

r in

put i

s ou

t of

rang

e.

Che

ck: S

enso

r re

sist

ance

bet

wee

n 83

0 oh

ms

(200

F)

and

345.

7Koh

ms

(-

40 F

). I

f not

, che

ck fi

eld/

unit

wiri

ng

betw

een

Sen

sor

and

MC

M.

The

Sup

erhe

at/S

ubco

ol M

odul

e is

in

stal

led

and

the

unit

is r

eadi

ng a

si

gnal

that

is o

ut o

f ran

ge fo

r th

e C

ircui

t 2 S

uctio

n Li

ne T

empe

ratu

re

Sen

sor

inpu

t on

the

MC

M. (

Tem

p <

-40

F o

r T

emp

> 2

00 F

).

The

Sup

erhe

at/S

ubco

ol

calc

ulat

ion

is in

valid

and

the

valu

es a

re s

et to

zer

o. N

o ot

her

chan

ge in

uni

t ope

ratio

n oc

curs

. T

his

diag

nost

ic is

for

info

rmat

ion

only

.

(IN

FO

) A

n au

tom

atic

res

et o

ccur

s af

ter

the

Circ

uit 2

Suc

tion

Line

T

empe

ratu

re S

enso

r in

put r

etur

ns to

its

allo

wab

le r

ange

. In

ord

er to

pr

even

t rap

id c

yclin

g of

the

Dia

gnos

tic, t

here

is a

10

seco

nd

dela

y be

fore

the

auto

mat

ic r

eset

.

Sup

erhe

at/S

ubco

ol M

odul

e C

omm

F

ail

Pro

blem

: The

CG

M h

as lo

st

com

mun

icat

ions

with

the

Sup

erhe

at/S

ubco

ol M

odul

e (S

SM

).

Che

ck: C

heck

fiel

d/un

it w

iring

be

twee

n C

GM

and

SS

M M

odul

e.

The

CG

M h

as lo

st c

omm

unic

atio

ns

with

the

SS

M.

No

Cha

nge

in u

nit o

pera

tion

occu

rs.

The

Sup

erhe

at/S

ubco

ol

Mod

ule

is u

sed

for

mon

itorin

g pu

rpos

es o

nly,

and

doe

s no

t af

fect

uni

t ope

ratio

n. T

his

diag

nost

ic is

for

info

rmat

ion

only

.

(PA

R)

An

auto

mat

ic r

eset

occ

urs

afte

r co

mm

unic

atio

n ha

s be

en

rest

ored

.

62


IAG

NO

ST

IC D

ISP

LA

YE

D

RE

AS

ON

FO

R D

IAG

NO

ST

IC

UC

M’S

RE

AC

TIO

N

RE

SE

T R

EQ

UIR

ED

B

AS

Mo

du

le C

om

mu

nic

atio

ns

Fa

ilure

CG

M h

as

lost

co

mm

un

ica

tion

sA

ll a

ctiv

e c

om

ma

nd

s a

nd

(PA

R)

An

au

tom

atic

re

set

with

the

TC

I or

LC

I Mo

du

le.

setp

oin

ts p

rovi

de

d b

y th

e n

etw

ork

occu

rs a

fter

com

mun

icat

ion

Pro

ble

m: T

he

RT

M h

as

lost

thro

ug

h th

e T

CI o

r L

CI

will

be

ha

s b

ee

n r

est

ore

d.

com

mu

nic

atio

ns

with

the

TC

I or

LC

I.ca

nce

lled

an

d/ o

r ig

no

red

. Wh

ere

th

e n

etw

ork

ha

s b

ee

n d

esi

gn

ate

d

Ch

eck

: Ch

eck

fie

ld/ u

nit

wir

ing

as

setp

oin

t so

urc

e, l

oca

l HI d

efa

ult

be

twe

en

RT

M a

nd

TC

I or

LC

I Mo

du

le.

setp

oin

ts w

ill b

e u

sed

.B

AS

/NE

TW

OR

K C

om

m F

ailu

reT

he

TC

I or

LC

I ha

s lo

st

All

act

ive

co

mm

an

ds

an

d(P

AR

) A

n a

uto

ma

tic r

ese

t occ

urs

com

mun

icat

ions

with

the

se

tpo

ints

pro

vid

ed

by

the

af

ter

com

unic

atio

ns w

ith t

he

Pro

ble

m: T

he

TC

I or

LC

I ha

s lo

stn

etw

ork

for

> 1

5 m

inu

tes.

ne

two

rk th

rou

gh

the

TC

I or

ne

two

rk a

nd

TC

I or

LC

I co

mm

un

ica

tion

s w

ith T

race

r.L

CI w

ill b

e c

an

celle

d a

nd

/h

as

be

en

re

sto

red

.o

r ig

no

red

. Wh

ere

the

ne

two

rk

Ch

eck

: Ne

two

rk (

Tra

cer

or

3rd

pa

rty

ha

s b

ee

n d

esi

gn

ate

d a

s se

tpo

int

bu

ildin

g c

on

tro

l pa

ne

l) is

po

we

red

up

so

urc

e, l

oca

l HI d

efa

ult

an

d r

un

nin

g p

rop

erl

y. If

so

, ch

eck

un

it se

tpo

ints

will

be

use

d.

wir

ing

be

twe

en

TC

I or

LC

I an

d n

etw

ork

(Tra

cer

or

3rd

pa

rty

bu

ildin

g c

on

tro

l pa

ne

l )

Un

it H

I Co

mm

un

ica

tion

s F

ailu

re

Th

e C

GM

ha

s lo

st

A fa

ilsa

fe fu

nct

ion

in th

e H

I will

; (I

NF

O)

An

au

tom

atic

re

set o

ccu

rs

com

mun

icat

ions

with

the

a. d

isa

llow

an

y in

tera

ctio

n

afte

r co

mm

un

ica

tion

ha

s b

ee

n

Pro

ble

m: T

he

CG

M h

as

lost

u

nit-

mo

un

ted

Hu

ma

n

b

etw

ee

n th

e H

I an

d th

ere

stor

ed b

etw

een

the

CG

Mco

mm

un

ica

tion

s w

ith th

e U

nit

Inte

rfa

ce.

C

GM

(o

r a

ny

oth

er

an

d th

e H

I. W

he

n th

e fa

ilure

m

ou

nte

d (

loca

l) H

um

an

Inte

rfa

ce

m

od

ule

s),

scre

en

is c

lea

red

, th

e

(HI)

. b

. re

nd

er

all

HI k

eys

tro

kes

Ge

ne

ral d

isp

lay

is r

est

ore

d

ine

ffect

ive

, an

d

an

d H

I in

tera

ctio

n w

ith th

e

Ch

eck

: Fie

ld/u

nit

wir

ing

be

twe

en

c.

ca

use

the

follo

win

g to

be

C

GM

is a

ga

in p

erm

itte

d.

CG

M a

nd

Lo

cal H

I.

dis

pla

yed

on

the

un

it-

m

ou

nte

d H

I dis

pla

y: L

OC

AL

HI

C

OM

MU

NIC

AT

ION

S

L

OS

S C

HE

CK

CO

MM

LIN

K

W

IRIN

G B

ET

WE

EN

M

OD

UL

ES

(If t

he

un

it h

as

a r

em

ote

HI

op

tion,

the

n on

the

rem

ote

H

I mo

du

le, t

his

dia

gn

ost

ic

will

be

re

po

rte

d a

nd

di

spla

yed

as a

ny o

ther

au

tom

atic

re

set d

iag

no

stic

).

63

Mo

du

le I/

O S

um

mar

yU

NIT

MO

DU

LE

AN

AL

OG

IN

PU

TS

AN

AL

OG

OU

TP

UT

SB

INA

RY

IN

PU

TS

BIN

AR

Y O

UT

PU

TS

Co

ld G

en

era

tor

• E

xte

rna

l Le

avi

ng

So

lutio

n S

etp

oin

t•

No

ne

• E

me

rge

ncy

Sto

p•

Liq

uid

Lin

e R

ela

y (C

kt #

1)

Mo

du

le (

CG

M)

• E

vap

En

teri

ng

So

lutio

n T

em

p•

Ext

ern

al A

uto

/Sto

p•

Liq

uid

Lin

e R

ela

y (C

kt #

2)

• E

vap

Le

avi

ng

So

lutio

n T

em

p•

Ice

Bu

ildin

g•

Ho

t Ga

s B

ypa

ss R

ela

y•

ICS

De

fine

d T

em

p•

Flo

w P

rovi

ng

• A

larm

Re

lay

• C

on

de

nse

r E

nte

rin

g S

olu

tion

Te

mp

• C

on

de

nse

r P

um

p

• L

ow

Am

bie

nt B

ypa

ss 1

Re

lay

• O

utd

oo

r A

ir T

em

p P

rovi

ng

• L

ow

Am

bie

nt B

ypa

ss 2

Re

lay

• C

on

de

nse

r L

ea

vin

g S

olu

tion

Te

mp

• S

olu

tion

Pu

mp

Re

lay

• Z

on

e T

em

pe

ratu

re•

Ice

Ma

kin

g R

ela

y•

ICS

Te

mp

era

ture

• IC

S R

ela

yC

urr

en

t Se

nsi

ng

• C

om

pre

sso

r A

, Ph

ase

A•

No

ne

• N

on

e•

No

ne

Mo

du

le (

CS

M)

• C

om

pre

sso

r A

, Ph

ase

B•

Co

mp

ress

or

B, P

ha

se A

• C

om

pre

sso

r B

, Ph

ase

C•

Co

mp

ress

or

C, P

ha

se B

• C

om

pre

sso

r C

, Ph

ase

C•

Co

mp

ress

or

D, P

ha

se A

• C

om

pre

sso

r D

, Ph

ase

CG

en

eri

c B

uild

ing

Fo

ur

inp

uts

, wh

ich

ca

n b

e a

ssig

ne

d:

• N

on

e•

De

ma

nd

Lim

itF

ive

ou

tpu

ts, w

hic

h c

an

A

uto

ma

tion

Sys

tem

0-

• O

cc Z

on

e C

oo

l Se

tpo

int

be

as

sig

ne

d:

5V

DC

(G

BA

S 0

-5V

)•

Un

occ

Zo

ne

Co

ol S

etp

oin

t•

Co

mp

ress

ors

ru

nn

ing

Mo

du

le•

Occ

Zo

ne

He

at S

etp

oin

t•

Ru

nn

ing

at m

axi

mu

m

• U

no

cc Z

on

e H

ea

t Se

tpo

int

ca

pa

city

• S

up

ply

Air

Co

olin

g S

etp

oin

t•

Se

lect

ed

dia

gn

ost

ics

• S

up

ply

Air

He

atin

g S

etp

oin

t m

ess

ag

es

• S

pa

ce S

tatic

Pre

ssu

re S

etp

oin

t•

SA

Sta

tic P

ress

ure

Se

tpo

int

• M

in O

A C

FM

Se

tpo

int

• L

ea

vin

g S

olu

tion

Se

tpo

int

• Ic

e B

uild

Te

rmin

ate

Se

tpo

int

• H

ot S

tart

Lo

ad

Lim

it S

etp

oin

t•

Ma

xim

um

Ca

pa

city

Le

vel S

etp

oin

t

64

Mo

du

le I/

O S

um

mar

yU

NIT

MO

DU

LE

AN

AL

OG

IN

PU

TS

AN

AL

OG

OU

TP

UT

SB

INA

RY

IN

PU

TS

BIN

AR

Y O

UT

PU

TS

Ge

ne

ric

Bu

ildin

gF

ou

r in

pu

ts, w

hic

h c

an

F

ou

r o

utp

uts

, wh

ich

ca

n

• D

em

an

d L

imit

On

e o

utp

ut,

wh

ich

A

uto

ma

tion

Sys

tem

0-

be

as

sig

ne

d:

be

as

sig

ne

d:

can

be

as

sig

ne

d:

10

VD

C (

GB

AS

0-1

0V

)•

Le

avi

ng

So

lutio

n S

etp

oin

t•

Le

avi

ng

So

ln T

em

p•

Co

mp

ress

ors

ru

nn

ing

Mo

du

le•

Ice

Bu

ild T

erm

ina

te S

etp

oin

t•

En

teri

ng

So

ln T

em

p•

Ru

nn

ing

at m

axi

mu

m

• H

ot S

tart

Lo

ad

Lim

it S

etp

oin

t•

Sa

t. C

on

d T

em

p C

kt1

ca

pa

cit y

• M

axi

mu

m C

ap

aci

ty L

eve

l•

Sa

t. C

on

d T

em

p C

kt2

• S

ele

cte

d d

iag

no

stic

s S

etp

oin

t•

Eva

p T

em

p C

kt1

m

ess

ag

es

• E

vap

Te

mp

Ckt

2•

ICS

De

fine

d T

em

p•

Liq

uid

Pre

ssu

re C

kt1

• S

uct

ion

Pre

ssu

re C

kt1

• L

iqu

id P

ress

ure

Ckt

2•

Su

ctio

n P

ress

ure

Ckt

2•

Act

ive

Co

olin

g C

ap

aci

ty•

Ou

tdo

or

Air

Te

mp

• S

atu

rate

d L

iqu

id T

em

p C

kt1

• S

atu

rate

d L

iqu

id T

em

p C

kt2

Hu

ma

n In

terf

ace

(H

I)•

No

ne

•

No

ne

•

No

ne

•

No

ne

Mo

du

leIn

terp

roce

sso

r•

No

ne

•

No

ne

•

No

ne

•

No

ne

Co

mm

un

ica

tion

sB

rid

ge

(IP

CB

) M

od

ule

Mu

ltip

le C

om

pre

sso

r•

Eva

p/S

uct

ion

Te

mp

era

ture

• C

on

de

nse

r F

an

Sp

ee

d•

Co

mp

ress

or

Pro

vin

g (

Ckt

#1

)•

Co

mp

ress

or

Re

lay

K1

1M

od

ule

(M

CM

) (

Ckt

#1

)(L

ow

Am

bie

nt C

kt #

1)

• C

om

pre

sso

r P

rovi

ng

(C

kt #

2)

• C

om

pre

sso

r R

ela

y K

12

• E

vap

/Su

ctio

n T

em

pe

ratu

re•

Co

nd

en

ser

Fa

n S

pe

ed

• L

ow

Pre

ssu

re C

uto

ut(

Ckt

#1

)•

Co

mp

ress

or

Re

lay

K3

(C

kt #

2)

(Lo

w A

mb

ien

t Ckt

#2

)•

Lo

w P

ress

ure

Cu

tou

t (C

kt #

2)

• C

om

pre

sso

r R

ela

y K

4•

Sa

tura

ted

Co

nd

en

ser

• H

igh

Pre

ssu

re C

on

tro

l (C

kt #

1)

• C

on

de

nse

r F

an

1A

Te

mp

era

ture

Se

nso

r (C

kt #

1)

• H

igh

Pre

ssu

re C

on

tro

l (C

kt #

2)

• C

on

de

nse

r F

an

1B

• S

atu

rate

d C

on

de

nse

r •

Co

nd

en

ser

Fa

n 1

C T

em

pe

ratu

re S

en

sor

(Ckt

#2

)•

Co

nd

en

ser

Fa

n 2

A•

Sa

tura

ted

Liq

uid

Te

mp

(C

kt #

1)

• C

on

de

nse

r F

an

2B

• S

atu

rate

d L

iqu

id T

em

p (

Ckt

#2

)•

Co

nd

en

ser

Fa

n 2

C•

He

ate

r T

ap

eS

ing

le C

om

pre

sso

r•

Eva

p/S

uct

ion

Te

mp

era

ture

• C

on

de

nse

r F

an

Sp

ee

d•

Co

mp

ress

or

Pro

vin

g•

Co

mp

ress

or

Re

lay

K1

1M

od

ule

(S

CM

)•

Sa

tura

ted

Co

nd

en

ser

(Lo

w A

mb

ien

t)•

Lo

w P

ress

ure

Cu

tou

t•

Co

mp

ress

or

Re

lay

K1

2 T

em

pe

ratu

re•

Hig

h P

ress

ure

Co

ntr

ol

• C

on

de

nse

r F

an

A•

Sa

tura

ted

Liq

uid

Te

mp

era

ture

• C

on

de

ns

er

Fa

n B

65

Mo

du

le I/

O S

um

mar

yU

NIT

MO

DU

LE

AN

AL

OG

IN

PU

TS

AN

AL

OG

OU

TP

UT

SB

INA

RY

IN

PU

TS

BIN

AR

Y O

UT

PU

TS

Su

pe

rhe

at/S

ub

coo

l•

Liq

uid

Pre

ssu

re C

kt #

1•

No

ne

• N

on

e•

No

ne

Mo

du

le (

SS

M)

• L

iqu

id P

ress

ure

Ckt

#2

• S

uct

ion

Pre

ssu

re C

kt #

1•

Su

ctio

n P

ress

ure

Ckt

#2

Tra

ne

Co

mm

un

ica

tion

• N

on

e•

No

ne

• N

on

e•

No

ne

Inte

rfa

ce (

TC

I)M

od

ule

LonT

alk

Com

mun

icat

ion

• N

one

• N

one

• N

one

• N

one

Inte

rface

(LC

I) M

odul

e

66

IndexH

Head Pressure Control ..........................................26HI module; See Human Interface ModuleHuman Interface Keypad ......................................... 8See Figure 2

Human Interface Module ......................................... 7See Figure 1

I

Ice Building ............................................................26Information Format ................................................23Interprocessor Communications Board ................... 6

Leaving Solution Setpoint ........................................ 5Leaving Solution Temperature Control Point ........... 5Literature Change History ........................................ 2Loop Stabilization ..................................................25Low Ambient Compressor Lock-out ......................... 5

L

LonTalk .............................................................. 4,5,6LonTalk Communication Interface

(LCI) module ........... 4,5,6,19,23,24,28,38,61,63

M

Manual disconnect switch 1S14 .............................. 6See Manual Disconnect Switch

Menu Keys ............................................................... 8microelectronic control system ................................ 6See UCM Control System

Model Number Description ...................................... 4Module I/O Summary .............................................62

N

NEXT Key ................................................................ 9No Configuration ...................................................... 7non-Trane building control systems; See Generic BAS

Module

Symbols

+ (Plus) Key...9+ (Plus) Key...10; See Data Manipulation Keys- (Minus) Key...9- (Minus) Key...10; See Data Manipulation Keys115V Control Circuit Switch (1S1)...7; See Power

Disconnecting Switches24V Transformer Switch (1S70)...7; See Power

Disconnecting Switches

A

Active Setpoint ......................................................... 5AUTO Key ................................................................ 9

C

CANCEL Key ........................................................... 8Cautions ................................................................... 4Cold Generator Module ........................................... 6Communications Link Problems ............................46Compressor Module ................................................ 6Compressor Protection Switch ................................ 5CONFIGURATION Key ............................................ 8CONFIGURATION Menu .......................................36Control Band ............................................................ 5Control circuit switch (1S1) ...................................... 6Control Parameters ................................................32Control Point ............................................................ 5Current Sensing Module .......................................... 6CUSTOM Key .......................................................... 9

D

Data Manipulation Keys ........................................... 8Deadband ................................................................ 5DIAGNOSTICS Key ................................................. 8Disconnect switch 1S14........................................... 6

E

Emergency Stop ...................................................... 5ENTER Key.............................................................. 8External Auto/Stop ................................................... 5

G

Generic Building Automation System ...................... 6

67

P

PREVIOUS Key ....................................................... 9

R

Remote Human Interface ........................................ 5See Interprocessor Communication Module

Reset Amount Maximum ......................................... 5Reset End Temperature ........................................... 5Reset Start Temperature .......................................... 5

S

SCM or MCM; See Compressor ModuleSERVICE MODE Key .............................................. 8SERVICE MODE Menu .........................................39Setpoint Source Selection .....................................34SETPOINTS Key ..................................................... 8SETUP Menu ........................................................23SETUP Key .............................................................. 8STATUS Key ............................................................ 8STATUS Menu .......................................................15STOP Key ................................................................ 9Superheat & Subcooling Module ............................. 6

T

TEST START Key (SERVICE) ...............................9Trane Communications Interface Module ..............6Trane integrated comfort systems; See Trane

Communications Interface ModuleTransformer switch 1S70 .......................................6

U

Unit Control Module ...............................................5Unit Nameplate ......................................................4Unit Operation Keys ...............................................9Unit Status (Unit Off or Stopped) ...........................7Unit Status (Unit On) ..............................................7

W

Warnings ................................................................4

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