ATTENTION INSTALLING PERSONNEL:

Prior to installation, thoroughly familiarize yourself with thisInstallation Manual. Observe all safety warnings. During in-stallation or repair, caution is to be observed.

It is your responsibility to install the product safely and toeducate the customer on its safe use.

RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.

These installation instructions cover the outdoor installation ofsingle package heating and cooling units. See the SpecificationSheet applicable to your model for information regarding acces-sories.

*NOTE: Please contact your distributor or our website for theapplicable Specification Sheet referred to in this manual.

This Forced Air Central Unit Design Complies With RequirementsEmbodied In The American National Standard / National Stan-dard of Canada Shown Below.

ANSI Z21.47•CSA-2.3 Central Furnaces

© 2013 - 20165151 San Felipe St., Suite 500, Houston, TX 77056

www.daikincomfort.com

Our continuing commitment to quality products may mean a change in specifications without notice.

DCG SERIESLIGHT COMMERCIAL PACKAGED GAS UNIT7.5 to 12.5 TON

IOD-1005G8/2016

INSTALLATION INSTRUCTIONS

IndexReplacement Parts ................................................................ 2Safety Instructions ................................................................ 2General Information ............................................................. 3Unit Location ........................................................................ 4Clearances ............................................................................ 5Roof Curb Post-Installation Checks ....................................... 6Roof Top Duct Connections ................................................... 6Rigging Details ...................................................................... 6Electrical Wiring .................................................................... 8Gas Supply Piping ............................................................... 10Propane Gas Installations ................................................... 11Circulating Air and Filters .................................................... 12Venting ............................................................................... 12Condensate Drain Connection ............................................ 12Startup, Adjustments, and Checks ...................................... 13Air flow Adjustments .......................................................... 14Motor Sheave Adjustments ................................................ 15Gas System Check ............................................................... 15Normal Sequence Of Operation .......................................... 18Maintenance ...................................................................... 20Troubleshooting .................................................................. 22Appendix A Blower Performance Data

Belt Drive - Standard Down Shot .................................... 24Appendix A Blower Performance Data

Belt Drive - Standard Horizontal ..................................... 25Appendix A Blower Performance Data

Belt Drive - Down Shot High Static ................................. 26Belt Drive - Horizontal High Static .................................. 27

Appendix A Economizer Pressure Drop................................28Appendix B Electrical Data .................................................. 29Appendix C Unit Dimensions ............................................... 30Appendix D Wiring Diagrams .............................................. 31Wiring Diagrams For Models with DDC Controls...................44Start-Up Checklist................................................................51

2

REPLACEMENT PARTS

ORDERING PARTS

When reporting shortages or damages, or ordering repairparts, give the complete unit model and serial numbers asstamped on the unit’s nameplate.

Replacement parts for this appliance are available throughyour contractor or local distributor. For the location of yournearest distributor, consult the white business pages, theyellow page section of the local telephone book or contact:

CONSUMER AFFAIRSDAIKIN NORTH AMERICA LLC

7401 SECURITY WAYHOUSTON, TEXAS 77040

855-770-5678

SAFETY INSTRUCTIONS

TO THE INSTALLER

Before installing this unit, please read this manual tofamiliarize yourself on the specific items which must beadhered to, including maximum external static pressure tounit, air temperature rise, minimum or maximum CFM andmotor speed connections.

Keep this literature in a safe place for future reference.

IF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTYDAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.

DO NOT TRY TO LIGHT ANY APPLIANCE.DO NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY PHONE IN YOUR BUILDING.IMMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S PHONE. FOLLOW THE GAS SUPPLIER’S INSTRUCTIONS.IF YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE DEPARTMENT.

INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

WHAT TO DO IF YOU SMELL GAS:

WARNING

SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE FURNACE BEFORE TURNING OFF THE ELECTRICAL SUPPLY.

WARNING

SHEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION.

CAUTION

DO NOT CONNECT TO OR USE ANY DEVICE THAT IS NOT DESIGN CERTIFIED BY DAIKIN FOR USE WITH THIS UNIT. SERIOUS PROPERTY DAMAGE, PERSONAL INJURY, REDUCED UNIT PERFORMANCE AND/OR HAZARDOUS CONDITIONS MAY RESULT FROM THE USE OF SUCH NON-APPROVED DEVICES.

WARNING

THIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALS WHICH MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH ARE KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.

WARNING

TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DO NOT USE THIS UNIT IF ANY PART HAS BEEN UNDER WATER. IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE FURNACE AND TO REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL HAVING BEEN UNDER WATER.

WARNING

THIS UNIT MUST NOT BE USED AS A “CONSTRUCTION HEATER” DURING THE FINISHING PHASES OF CONSTRUCTION ON A NEW STRUCTURE. THIS TYPE OF USE MAY RESULT IN PREMATURE FAILURE OF THE UNIT DUE TO EXTREMELY LOW RETURN AIR TEMPERATURES AND EXPOSURE TO CORROSIVE OR VERY DIRTY ATMOSPHERES.

WARNING

HIGH VOLTAGE !DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

TO PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE.

WARNING

3

ONLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL, ADJUST, SERVICE OR REPAIR (HEREINAFTER, “SERVICE”) THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD SERVICE THE EQUIPMENT. THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES. IF YOU SERVICE THIS UNIT, YOU ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY RESULT. IN ADDITION, IN JURISDICTIONS THAT REQUIRE ONE OR MORE LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL, ONLY LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT. IMPROPER INSTALLATION, ADJUSTMENT, SERVICING OR REPAIR OF THE EQUIPMENT SPECIFIED IN THIS MANUAL, OR ATTEMPTING TO INSTALL, ADJUST, SERVICE OR REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER TRAINING MAY RESULT IN PRODUCT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

GENERAL INFORMATION

For complete information and installation instructions for modelswith DDC controls, see manual DK-DDC-TGD-01A

TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE, EXPLOSIONS, SMOKE, SOOT, CONDENSATION, ELECTRIC SHOCK OR CARBON MONOXIDE, THIS UNIT MUST BE PROPERLY INSTALLED, REPAIRED, OPERATED AND MAINTAINED.

WARNING

This unit is approved for outdoor installation ONLY. Rated perfor-mance is achieved after 72 hours of operation. Rated performanceis delivered at the specified airflow. See outdoor unit specifica-tion sheet for split system models or product specification sheetfor packaged and light commercial models. Specification sheetscan be found at www.daikincomfort.com for Daikin brand prod-ucts. Within the website, please select the residential or com-mercial products menu and then select the submenu for the typeof product to be installed, such as air conditioners or heat pumps,to access a list of product pages that each contain links to thatmodel’s specification sheet.

To assure that your unit operates safely and efficiently, it must beinstalled, operated, and maintained in accordance with these in-stallation and operating instructions, all local building codes andordinances, or in their absence, with the latest edition of the Na-tional Fuel Gas Code NFPA54/ANSI Z223.1 and National Standardof Canada CAN/CSA B149 Installation Codes.

EPA REGULATIONS

IMPORTANT: THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (EPA)HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND DISPOSAL

OF REFRIGERANTS IN THIS UNIT. FAILURE TO FOLLOW THESE REGULATIONS MAY

HARM THE ENVIRONMENT AND CAN LEAD TO THE IMPOSITION OF SUBSTANTIAL

FINES. BECAUSE REGULATIONS MAY VARY DUE TO PASSAGE OF NEW LAWS, WE

SUGGEST A CERTIFIED TECHNICIAN PERFORM ANY WORK DONE ON THIS UNIT.SHOULD YOU HAVE ANY QUESTIONS PLEASE CONTACT THE LOCAL OFFICE OF THE

EPA.

NATIONAL CODES

This product is designed and manufactured to permit installationin accordance with National Codes. It is the installer’s responsibil-ity to install the product in accordance with National Codes and/or prevailing local codes and regulations.

The heating and cooling capacities of the unit should be greaterthan or equal to the design heating and cooling loads of the areato be conditioned. The loads should be calculated by an approvedmethod or in accordance with ASHRAE Guide or Manual J - LoadCalculations published by the Air Conditioning Contractors ofAmerica.

Obtain from:

American National Standards Institute25 West 43rd Street, 4th Floor

New York, NY 10036

System design and installation should also, where applicable, fol-low information presented in accepted industry guides such as theASHRAE Handbooks. The manufacturer assumes no responsibilityfor equipment installed in violation of any code or regulation. Themechanical installation of the packaged roof top units consists ofmaking final connections between the unit and building services;supply and return duct connections; and drain connections (if re-quired). The internal systems of the unit are completely factory-installed and tested prior to shipment.

4

Units are generally installed on a steel roof mounting curb assem-bly which has been shipped to the job site for installation on theroof structure prior to the arrival of the unit. The model numbershown on the unit’s identification plate identifies the various com-ponents of the unit such as refrigeration tonnage, heating inputand voltage.

Carefully inspect the unit for damage including damage to thecabinetry. Any bolts or screws which may have loosened in transitmust be re-tightened. In the event of damage, the receiver should:

1. Make notation on delivery receipt of any visible damageto shipment or container.

2. Notify carrier promptly and request an inspection.3. In case of concealed damage, carrier should be notified as

soon as possible-preferably within 5 days.4. File the claim with the following supporting documents:

a. Original Bill of Lading, certified copy, or indemnity bond.b. Original paid freight bill or indemnity in lieu thereof.c. Original invoice or certified copy thereof, showing trade

and other discounts or reductions.d. Copy of the inspection report issued by carrier

representative at the time damage is reported to thecarrier. The carrier is responsible for making promptinspection of damage and for a thorough investigationof each claim. The distributor or manufacturer will notaccept claims from dealers for transportation damage.

NOTE: When inspecting the unit for transportation damage, re-move all packaging materials. Recycle or dispose of the packagingmaterial according to local codes.

PRE-INSTALLATION CHECKS

Carefully read all instructions for the installation prior to installingunit. Ensure each step or procedure is understood and any specialconsiderations are taken into account before starting installation.Assemble all tools, hardware and supplies needed to complete theinstallation. Some items may need to be purchased locally.

UNIT LOCATION

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT.

WARNING

IMPORTANT NOTE: Remove wood shipping rails and metal ship-ping brace (if applicable) prior to installation of the unit on a roofcurb.

ALL INSTALLATIONS:

IMPORTANT NOTE: Unit should be energized 24 hours prior tocompressor start up to ensure crankcase heater has suffi-ciently warmed the compressors. Compressor damage mayoccur if this step is not followed.

NOTE: Appliance is shipped from factory for vertical ductapplication.Proper installation of the unit ensures trouble-free operation. Im-proper installation can result in problems ranging from noisyoperation to property or equipment damages, dangerous condi-

tions that could result in injury or personal property damage andthat are not covered by the warranty. Give this booklet to the userand explain it’s provisions. The user should retain these instruc-tions for future reference.

• For proper flame pattern within the heat exchanger andproper condensate drainage, the unit must be mountedlevel.

• The flue outlet must be at least 12 inches from any openingthrough which flue gases could enter a building, and atleast three feet above any forced air inlet located withinten feet. The economizer/manual fresh air intake/motorized fresh air intake and combustion air inletmounted on the unit are not affected by this restriction.

• To avoid possible corrosion of the heat exchanger, do notlocate the unit in an area where the outdoor air (i.e.combustion air for the unit) will be frequentlycontaminated by compounds containing chlorine orfluorine. Common sources of such compounds includeswimming pool chemicals and chlorine bleaches, paintstripper, adhesives, paints, varnishes, sealers, waxes (whichare not yet dried) and solvents used during constructionand remodeling. Various commercial and industrialprocesses may also be sources of chlorine/fluorinecompounds.

• To avoid possible illness or death of the building occupants,do NOT locate outside air intake device (economizer,manual fresh air intake, motorized fresh air intake) tooclose to an exhaust outlet, gas vent termination, orplumbing vent outlet. For specific distances required,consult local codes.

• Allow minimum clearances from the enclosure for fireprotection, proper operation, and service access (see unitclearances). These clearances must be permanentlymaintained.

• The combustion air inlet and flue outlet on the unit mustnever be obstructed. If used, do not allow the economizer/manual fresh air damper/ motorized fresh air damper tobecome blocked by snow or debris. In some climates orlocations, it may be necessary to elevate the unit to avoidthese problems.

• When the unit is heating, the temperature of the returnair entering the unit must be between 50° F and 100° F.

GROUND LEVEL INSTALLATIONS ONLY:

• When the unit is installed on the ground adjacent to thebuilding, a level concrete (or equal) base is recommended.Prepare a base that is 3” larger than the package unitfootprint and a minimum of 3” thick.

• The base should also be located where no runoff of waterfrom higher ground can collect in the unit.

ROOF TOP INSTALLATIONS ONLY:

• To avoid possible property damage or personal injury, theroof must have sufficient structural strength to carry theweight of the unit(s) and snow or water loads as requiredby local codes. Consult a structural engineer to determinethe weight capabilities of the roof.

5

• The unit may be installed directly on wood floors or onClass A, Class B, or Class C roof covering material.

• To avoid possible personal injury, a safe, flat surface forservice personnel should be provided.

• As indicated on the unit data plate, a minimum clearanceof 36” to any combustible material is required on thefurnace access side of the unit. All combustible materialsmust be kept out of this area.

• This 36” clearance must also be maintained to insureproper combustion air and flue gas flow. The combustionair intake and furnace flue discharge must not be blockedfor any reason, including blockage by snow.

• Adequate clearances from the furnace flue discharge toany adjacent public walkways, adjacent buildings, buildingopenings or openable windows must be maintained inaccordance with the latest edition of the National Fuel GasCode (ANSI Z223.1)

• Minimum horizontal clearance of 48” from the furnaceflue discharge to any electric meters, gas meters, regulatorsand relief equipment is required.

UNIT PRECAUTIONS

• Do not stand or walk on the unit.• Do not drill holes anywhere in panels or in the base frame

of the unit except where indicated. Unit access panelsprovide structural support.

• Do not remove any access panels until unit has beeninstalled on roof curb or field supplied structure.

• Do not roll unit across finished roof without prior approvalof owner or architect.

• Do not skid or slide on any surface as this may damageunit base. The unit must be stored on a flat, level surface.Protect the condenser coil because it is easily damaged.

ROOF CURB INSTALLATIONS ONLY:Curb installations must comply with local codes and should be donein accordance with the established guidelines of the National Roof-ing Contractors Association.

Proper unit installation requires that the roof curb be firmly andpermanently attached to the roof structure. Check for adequatefastening method prior to setting the unit on the curb.

Full perimeter roof curbs are available from the factory and areshipped unassembled. Field assembly, squaring, leveling andmounting on the roof structure are the responsibility of the in-stalling contractor. All required hardware necessary for the as-sembly of the sheet metal curb is included in the curb accessory.

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT.

WARNING

• Sufficient structural support must be determined prior tolocating and mounting the curb and package unit.

• Ductwork must be constructed using industry guidelines.The duct work must be placed into the roof curb before

mounting the package unit. Our full perimeter curbsinclude duct connection frames to be assembled with thecurb. Cantilevered type curbs are not available from thefactory.

• Curb insulation, cant strips, flashing and general roofingmaterial are furnished by the contractor.

The curbs must be supported on parallel sides by roof members.The roof members must not penetrate supply and return ductopening areas as damage to the unit might occur.

NOTE: The unit and curb accessories are designed to allow verticalduct installation before unit placement. Duct installation after unitplacement is not recommended.

ALL CURBS LOOK SIMILAR. TO AVOID INCORRECT CURB POSITIONING, CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGS ON CURB ASSEMBLY. INSTRUCTIONS MAY VARY IN CURB STYLES AND SUPERCEDE INFORMATION SHOWN.

CAUTION

See the manual shipped with the roof curb for assembly and in-stallation instructions.

CLEARANCES

36” Min.*

36”*Min.

36”Min.*

*In situations that have multiple units, a 48” minimum clearanceis required between the condenser coils.

UNIT CLEARANCES

Adequate clearance around the unit should be kept for safety, ser-vice, maintenance, and proper unit operation. A total clearanceof 75” on the main control panel side of the unit is recommendedto facilitate possible fan shaft, coil, electric heat and gas furnaceremoval. A clearance of 48” is recommended on all other sides ofthe unit to facilitate possible compressor removal, to allow ser-vice access and to insure proper ventilation and condenser air-flow. The unit must not be installed beneath any obstruction. Theunit should be installed remote from all building exhausts to in-hibit ingestion of exhaust air into the unit fresh air intake.

NOTE: If the 48” minimum is used on the control panel side of aDCG unit, a flue extension (MF# 220-GX-02) needs be to installedto prevent flue gas recirculation.

6

INSULATEDPANELS

ROOF CURB INSTALLATION

ROOF CURB POST-INSTALLATION CHECKSAfter installation, check the top of the curb, duct connection frameand duct flanges to make sure gasket has been applied properly.Gasket should be firmly applied to the top of the curb perimeter,duct flanges and any exposed duct connection frame. If gasket isloose, re-apply using strong weather resistant adhesive.

PROTRUSION

Inspect curb to ensure that none of the utility services (electric)routed through the curb protrude above the curb.

IF PROTRUSIONS EXIST, DO NOT ATTEMPT TO SET UNIT ON CURB. INFORMATION SHOWN.

CAUTION

ROOF TOP DUCT CONNECTIONS

Install all duct connections on the unit before placing the unit onrooftop.

HORIZONTAL DISCHARGE

Refer to IOD-7006 included in the literature pack for installing hori-zontal duct covers.

Flexible duct connectors between the unit and ducts are recom-mended. Insulate and weatherproof all external ductwork andjoints as required and in accordance with local codes.

SUPPLY12”

17” 7 3/8”

11” 4 7/8””

25”

6 3/16”

REMOVE COVERS

HORIZONTAL DISCHARGE DUCT CONNECTIONS

RIGGING DETAILS

TO PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT POSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FACILITATE LIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNIT IN AN ADEQUATE CABLE SLING.

WARNING

DO NOT LIFT UNITS TWO AT A TIME. PROVISIONS FOR FORKS HAVE BEEN INCLUDED IN THE UNIT BASE FRAME. MINIMUM FORK LENGTH IS 48” TO PREVENT DAMAGE TO THE UNIT.

CAUTION

Provisions for forks have been included in the unit base frame. Noother fork locations are approved.

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT.

WARNING

• Unit must be lifted by the four lifting holes located at thebase frame corners.

• Lifting cables should be attached to the unit with shackles.• The distance between the crane hook and the top of the

unit must not be less than 60”.• Two spreader bars must span over the unit to prevent

damage to the cabinet by the lift cables. Spreader barsmust be of sufficient length so that cables do not come incontact with the unit during transport. Remove woodstruts mounted beneath unit base frame before settingunit on roof curb. These struts are intended to protectunit base frame from fork lift damage. Removal isaccomplished by extracting the sheet metal retainers andpulling the struts through the base of the unit. Refer torigging label on the unit.

7

• Your unit may be equipped with a steel shipping bracelocated underneath the unit (under compressors). Ifinstalling on a roof curb, the brace MUST be removed.Follow the following instructions for removal.

WHEN UNIT IS SUSPENDED, BOARDS AND SHIPPING BRACE WILL DROP WHEN SCREWS ARE REMOVED. TO PREVENT PERSONAL INJURY, STAND CLEAR.REMOVE FORK HOLE BRACKETS, BOARDS AND SHIPPING BRACE FROM BOTTOMOF UNIT BEFORE PLACING UNIT ONTO CURB.

CAUTION

Before installing this unit on a roof curb:1. Remove wooden struts per installation instructions. These

are the struts that are located in the fork holes and areused to protect the unit from damage while lifting withforks.

2. Locate and remove the twelve (12) screws that attach theshipping brace to the side rails. There will be six (6) screwson each side of the unit and they are in a diagonal pattern.See following figure.

3. Lift unit per the “Rigging Details” section of the installationinstructions, observing all warnings and cautions. Lift theunit high enough off the ground to reach under and graspthe shipping brace.

4. Rotate the brace by tapping the ends until the brace fallsfree from the unit.

5. Dispose of the brace appropriately.

Important: If using bottom discharge with roof curb, ductworkshould be attached to the curb prior to installing the unit. Ductworkdimensions are shown in Roof Curb Installation Instructions.

Refer to the Roof Curb Installation Instructions for proper curbinstallation. Curbing must be installed in compliance with the Na-tional Roofing Contractors Association Manual.

Lower unit carefully onto roof mounting curb. While rigging unit,center of gravity will cause condenser end to be lower than supplyair end.

To assist in determining rigging requirements, unit weights areshown as follows:

CG

B D

A C

RETURN

SUPPLY

EVAPORATOR COILCOMPRESSOR 1

COMPRESSOR 2

Y

X

CORNER & CENTER OF GRAVITY LOCATIONS

090 102 120 150

Corner Weight - A 269 255 255 335

Corner Weight - B 297 321 321 390

Corner Weight - C 254 250 250 295

Corner Weight - D 280 314 314 345

Unit Shipping Weight 1175 1215 1215 1390

Unit Operating Weight 1100 1140 1140 1365

X (Inches) 48 49 49 47

Y (Inches) 32 34 34 33.5

DATADCG Weights (lbs)

TO PREVENT SEVERE DAMAGE TO THE BOTTOM OF THE UNIT, DO NOT FORK LIFT UNIT AFTER WOOD STRUTS HAVE BEEN REMOVED.

CAUTION

8

Bring condenser end of unit into alignment with the curb. Withcondenser end of the unit resting on curb member and using curbas a fulcrum, lower opposite end of the unit until entire unit isseated on the curb. When a rectangular cantilever curb is used,care should be taken to center the unit. Check for proper align-ment and orientation of supply and return openings with duct.

RIGGING REMOVAL

TO PREVENT DAMAGE TO THE UNIT, DO NOT ALLOW CRANE HOOKS AND SPREADER BARS TO REST ON THE ROOF OF THE UNIT.

CAUTION

Remove spreader bars, lifting cables and other rigging equipment.

ELECTRICAL WIRING

HIGH VOLTAGE !DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

HIGH VOLTAGE !TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, DO NOT TAMPER WITH FACTORY WIRING. THE INTERNAL POWER AND CONTROL WIRING OF THESE UNITS ARE FACTORY-INSTALLED AND HAVE BEEN THOROUGHLY TEST PRIOR TO SHIPMENT. CONTACT YOUR LOCAL REPRESENTATIVE IF ASSISTANCE IS REQUIRED.

WARNING

TO PREVENT DAMAGE TO THE WIRING, PROTECT WIRING FROM SHARP EDGES. FOLLOW NATIONAL ELECTRICAL CODE AND ALL LOCAL CODES AND ORDINANCES. DO NOT ROUTE WIRES THROUGH REMOVABLE ACCESS PANELS.

CAUTION

CONDUIT AND FITTINGS MUST BE WEATHER-TIGHT TO PREVENT WATER ENTRY INTO THE BUILDING.

CAUTION

For unit protection, use a fuse or HACR circuit breaker that is inexcess of the circuit ampacity, but less than or equal to the maxi-mum overcurrent protection device. DO NOT EXCEED THE MAXI-MUM OVERCURRENT DEVICE SIZE SHOWN ON UNIT DATA PLATE.

All line voltage connections must be made through weatherprooffittings. All exterior power supply and ground wiring must be inapproved weatherproof conduit.

The main power supply wiring to the unit and low voltage wiringto accessory controls must be done in accordance with these in-structions, the latest edition of the National Electrical Code (ANSI/NFPA 70), and all local codes and ordinances. All field wiring shallconform with the temperature limitations for Type T wire (63°F/35°C rise).

The main power supply shall be three-phase, three wire. The unitis factory wired for the voltage shown on the unit’s data plate.

NOTE: If supply voltage is 208V, all leads on primary of transformerTRANS1 must be moved from the 230V to the 208V tap.

Main power wiring should be sized for the minimum wire ampacityshown on the unit’s database. Size wires in accordance with theampacity tables in Article 310 of the National Electrical Code. Iflong wires are required, it may be necessary to increase the wiresize to prevent excessive voltage drop. Wires should be sized for amaximum of 3% voltage drop.

TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USE ONLY COPPER CONDUCTORS.

CAUTION

TO PREVENT IMPROPER AND DANGEROUS OPERATION DUE TO WIRING ERRORS, LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. VERIFY PROPER OPERATION AFTER SERVICING.

CAUTION

NOTE: A weather-tight disconnect switch, properly sized for theunit total load, must be field or factory installed. An external fieldsupplied disconnect may be mounted on the exterior panel.

Ensure the data plate is not covered by the field-supplieddisconnect switch.

• Some disconnect switches are not fused. Protect thepower leads at the point of distribution in accordance withthe unit data plate.

• The unit must be electrically grounded in accordance withlocal codes or, in the absence of local codes, with the latestedition of the National Electrical Code (ANSI-NFPA 70). Aground lug is provided for this purpose. Size groundingconductor in accordance with Table 250-95 of the NationalElectrical Code. Do not use the ground lug for connectinga neutral conductor.

• Connect power wiring to the middle contactor within themain control box or to electrical power block if equipped.

9

Thermostat Wiring

PowerWiring

POWER AND LOW VOLTAGE BLOCK LOCATIONS

FAILURE OF UNIT DUE TO OPERATION ON IMPROPER LINE VOLTAGE OR WITH EXCESSIVE PHASE UNBALANCE CONSTITUTES PRODUCT ABUSE AND IS NOT COVERED BY THE WARRANTY. IT MAY CAUSE SEVERE DAMAGE TO THE UNIT ELECTRICAL COMPONENTS.

WARNING

AREAS WITHOUT CONVENIENCE OUTLET

It is recommended that an independent 115V power source bebrought to the vicinity of the roof top unit for portable lights andtools used by the service mechanic.

NOTE: Refer to local codes for requirements. These outlets canalso be factory installed.

UNITS INSTALLED ON ROOF TOPS

Main power and low voltage wiring may enter the unit throughthe side or through the roof curb. Install conduit connectors atthe desired entrance locations. External connectors must beweatherproof. All holes in the unit base must be sealed (includingthose around conduit nuts) to prevent water leakage into build-ing. All required conduit and fittings are to be field supplied.

Supply voltage to roof top unit must not vary by more than 10% ofthe value indicated on the unit data plate. Phase voltage unbal-ance must not exceed 2%. Contact your local power company forcorrection of improper voltage or phase unbalance.

LOW VOLTAGE ENTRANCE

DIAMETER 7/8” HOLE

HIGH VOLTAGE ENTRANCE

10 3/16”

26 ½”

DIAMETER 3/8” HOLE

ELECTRICAL ENTRANCE LOCATIONS

Unit is equipped with a Low Voltage Terminal Block and has SinglePoint wiring to the contactor.

LOW VOLTAGE CONTROL WIRING

1. A 24V thermostat must be installed for unit operation. Itmay be purchased with the unit or field -supplied.Thermostats may be programmable or electromechanicalas required.

2. Locate thermostat or remote sensor in the conditionedspace where it will sense average temperature. Do notlocate the device where it may be directly exposed tosupply air, sunlight or other sources of heat. Followinstallation instructions packaged with the thermostat.

3. Use #18 AWG wire for 24V control wiring runs notexceeding 75 feet. Use #16 AWG wire for 24V control wiringruns not exceeding 125 feet. Use #14 AWG wire for 24Vcontrol wiring runs not exceeding 200 feet. Low voltagewiring may be National Electrical Code (NEC) Class 2 wherepermitted by local codes.

4. Route thermostat wires from sub-base terminals to theunit. Control wiring should enter through the duct panel(hole entrance locations) or through the roof curb. Connectthermostat and any accessory wiring to low voltageterminal block TB1 in the main control box.

NOTE: Field-supplied conduit may need to be installed dependingon unit/curb configuration. Use #18 AWG solid conductor wirewhenever connecting thermostat wires to terminals on sub-base.DO NOT use larger than #18 AWG wire. A transition to #18 AWGwire may be required before entering thermostat sub-base.

NOTE: Refer to unit wiring diagrams for thermostat hookups.

10

GAS SUPPLY PIPING

TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

WARNING

IMPORTANT NOTE: This unit is factory set to operate on naturalgas at the altitudes shown on the rating plate.

TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH WHEN EITHER USING PROPANE GAS ALONE OR AT HIGHER ALTITUDES, OBTAIN AND INSTALL THE PROPER CONVERSION KIT(S). FAILURE TO DO SO CAN RESULT IN UNSATISFACTORY OPERATION AND/OR EQUIPMENT DAMAGE. HIGH ALTITUDE KITS ARE FOR U.S. INSTALLATIONS ONLY AND ARE NOT APPROVED FOR USE IN CANADA.

WARNING

The rating plate is stamped with the model number, type of gasand gas input rating. Make sure the unit is equipped to operate onthe type of gas available. Conversion to propane (LP) gas is permit-ted with the use of the factory authorized conversion kit (see theunit Technical Manual for the appropriate kit). For High Altitudederates, refer to the latest edition of the National Fuel Gas CodeNFPA 54/ANSI Z223.1.

NATURAL Min. 5.0" W.C., Max. 10.0" W.C.

PROPANE Min. 11.0" W.C., Max. 14.0" W.C.

INLET GAS PRESSURE

Inlet Gas Pressure Must Not Exceed the Maximum Value Shown in Table Above.

The minimum supply pressure should not vary from that shown inthe table above because this could prevent the unit from havingdependable ignition. In addition, gas input to the burners mustnot exceed the rated input shown on the rating plate. Overfiringof the unit could result in premature heat exchanger failure.

PIPING

IMPORTANT NOTE: To avoid possible unsatisfactory operation orequipment damage due to under firing of equipment, do not un-dersize the natural/propane gas piping from the meter/tank to theunit. When sizing a trunk line, include all appliances on that linethat could be operated simultaneously.

The rating plate is stamped with the model number, type of gasand gas input rating. Make sure the unit is equipped to operate onthe type of gas available. The gas line installation must complywith local codes, or in the absence of local codes, with the latestedition of the National Fuel Gas Code NFPA 54/ANSI Z223.1.

Natural Gas Connection

1/2 3/4 1 1 1/4 1 1 /210 132 278 520 1050 160020 92 190 350 730 110030 73 152 285 590 98040 63 130 245 500 76050 56 115 215 440 67060 50 105 195 400 61070 46 96 180 370 56080 43 90 170 350 53090 40 84 160 320 490

100 38 79 150 305 460Pressure= .50 PSIG or less and Pressure Drop of 0.3" W.C.(Based on 0.60 Specific Gravity Gas)

Natural Gas Capacity of Pipein Cubic Feet of Gas Per Hour (CFH)

Nominal Black Pipe Size (inches)Length ofPipe in Feet

CFH = BTUH Furnace Input

Heating Value of Gas (BTU/Cubic Foot)Refer to the Proper Piping Practice drawing for the general layoutat the unit. The following rules apply:

1. Use black iron pipe and fittings for the supply piping. Theuse of a flex connector and/or copper piping is permittedas long as it is in agreement with local codes.

2. Use pipe joint compound on male threads only. Pipe jointcompound must be resistant to the action of the fuel used.

3. Use ground joint unions.4. Install a drip leg to trap dirt and moisture before it can

enter the gas valve. The drip leg must be a minimum ofthree inches long.

5. Use two pipe wrenches when making connection to thegas valve to keep it from turning.

6. Install a manual shut-off valve in a convenient location(within six feet of unit) between the meter and the unit.

7. Tighten all joints securely.8. The unit must be connected to the building piping by one

of the following methods:• Rigid metallic pipe and fittings• Semirigid metallic tubing and metallic fittings (Aluminum

alloy tubing must not be used in exterior locations)• Listed gas appliance connectors used in accordance with

the terms of their listing that are completely in the sameroom as the equipment

• In the prior two methods above the connector or tubingmust be protected from physical and thermal damage.Aluminum alloy tubing and connectors must be coatedto protect against external corrosion when in contact withmasonry, plaster or insulation or are subject to repeatedwettings by liquids (water - not rain water, detergents orsewage).

11

PROVIDE CLEARANCEFOR REMOVAL OFACCESS PANELS

MANUALSHUTOFF VALVE

DRIP LEG

DOOR

GROUND JOINTUNION

PROPER PIPING PRACTICE

NOTE: The unit gas supply entrance is factory sealed with plugs.Keep plugs in place until gas supply is ready to be installed. Onceready, replace the plugs with the supplied grommets and installgas supply line.

GAS PIPING CHECKS

TO PREVENT PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, THE FOLLOWING INSTRUCTIONS MUST BE PERFORMED REGARDING GAS CONNECTIONS AND PRESSURE TESTING: • THE UNIT AND ITS GAS CONNECTIONS MUST BE LEAK TESTED

BEFORE PLACING IN OPERATION. BECAUSE OF THE DANGER OF EXPLOSION OR FIRE, NEVER USE A MATCH OR OPEN FLAME TO TEST FOR LEAKS. NEVER EXCEED SPECIFIED PRESSURES FOR TESTING. HIGHER PRESSURE MAY DAMAGE GAS VALVE AND CAUSE OVERFIRING WHICH MAY RESULT IN PREMATURE HEAT EXCHANGE FAILURE.

• THIS UNIT AND ITS SHUT-OFF VALVE MUST BE DISCONNECTED FROM THE GAS SUPPLY DURING ANY PRESSURE TESTING OF THAT SYSTEM AT TEST PRESSURES IN EXCESS OF 1/2 PSIG (3.48 KPA).

• THIS UNIT MUST BE ISOLATED FROM THE GAS SUPPLY SYSTEM BY CLOSING ITS MANUAL SHUT-OFF VALVE DURING ANY PRESSURE TESTING OF THE GAS SUPPLY PIPING SYSTEM AT TEST PRESSURES EQUAL TO OR LESS THAN 1/2 PSIG (3.48 KPA).

CAUTION

TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY, BE SURE THERE IS IN THE VICINITY DURING AIR BLEEDING.NO OPEN FLAME

WARNING

There will be air in the gas supply line after testing for leaks on anew installation. Therefore, the air must be bled from the line byloosening the ground joint union until pure gas is expelled. Tightenunion and wait for five minutes until all gas has been dissipated inthe air. Be certain there is no open flame in the vicinity during airbleeding procedure. The unit is placed in operation by closing themain electrical disconnect switch for the unit.

PROPANE GAS INSTALLATIONS

TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE OR EXPLOSION CAUSED BY A PROPANE GAS LEAK, INSTALL A GAS DETECTING WARNING DEVICE. SINCE RUST CAN REDUCE THE LEVEL OF ODORANT IN PROPANE GAS, A GAS DETECTING WARNING DEVICE IS THE ONLY RELIABLE WAY TO DETECT A PROPANE GAS LEAK. CONTACT A LOCAL PROPANE GAS SUPPLIER ABOUT INSTALLING A GAS DETECTING WARNING DEVICE.

WARNING

IMPORTANT NOTE: Propane gas conversion kits must be installedto convert units to propane gas.

All propane gas equipment must conform to the safety standardsof the National Board of Fire Underwriters (See NBFU Manual 58).Line pressure 11.3 - 14” w.c.For satisfactory operation, propane gas manifold pressure mustbe within 9.7 - 10.3 inches w.c. for high fire and within 6.7 - 7.3inches w.c. low fire at the manifold with all gas appliances in op-eration. Maintaining proper gas pressure depends on three mainfactors:

1. Vaporization rate, which depends on (a) temperature ofthe liquid, and (b) wetted surface area of the container orcontainers.

2. Proper pressure regulation.3. Pressure drop in lines between regulators, and between

second stage regulator and the appliance. Pipe sizerequired will depend on length of pipe run and total loadof all appliances.

TANKS AND PIPING

Complete information regarding tank sizing for vaporization,recommended regulator settings and pipe sizing is availablefrom most regulator manufacturers and propane gas suppliers.Since propane gas will quickly dissolve white lead or moststandard commercial compounds, special pipe dope must beused. Shellac base compounds resistant to the actions ofliquefied petroleum gases such as Gasolac®, Stalactic®, Clyde’s®

or John Crane® are satisfactory.See the following figure for typical propane gas piping.

200 PSIGMaximum

5 to 15 PSIG(20 PSIG Max.)

Continuous11" W.C.

Second StageRegulator

First StageRegulator

TYPICAL PROPANE GAS PIPING

12

ROOF TOP LOCATION AND INSTALLATION

The gas supply piping location and installation for roof top unitsmust be in accordance with local codes or, in the absence of localscodes, with ordinances of the latest edition of the National FuelGas Code (ANSI Z223.1).

A manual gas shut off valve must be field installed external to theroof top unit. In addition, a drip leg must be installed near theinlet connection. A ground joint union connection is required be-tween the external shut off valve and the unit connection to thegas valve to permit removal of the burner assembly for servicing.

1. Route gas piping to unit so that it does not interfere withthe removal of access panels. Support and align piping toprevent strains or misalignment of the manifold assembly.

2. All units are furnished with standard female NPT pipeconnections. Connection pipe sizes for DCG090 through300 units is 3/4" NPT The size of the gas supply piping tothe unit must be based on length of run, number of unitson the system, gas characteristics, BTU requirement andavailable supply pressure. All piping must be done inaccordance with local codes or, in the absence of localcodes, with the latest edition of the National Fuel Gas Code(ANSI Z223.1).NOTE: The gas connection size at the unit does NOTestablish the size of the supply line.

3. These units are designed for either natural or propane(LP) gas and are specifically constructed at the factory foronly one of these fuels. The fuels are NOT interchangeable.However, the furnace can be converted in the field fromnatural gas to LP gas with the appropriate factory kit (seeunit Technical Manual for the appropriate kit). Only aqualified contractor, experienced with natural and propanegas systems, should attempt conversion. Kit instructionsmust be followed closely to assure safe and reliable unitoperation.

4. With all units on a common line operating under full fire,natural gas main supply pressure should be adjusted toapproximately 7.0" w.c., measured at the unit gas valve. Ifthe gas pressure at the unit is greater than 10.5" w.c., thecontractor must furnish and install an external typepositive shut off service pressure regulator. The unit willnot function satisfactorily if supply gas pressure is less than5.5" w.c. or greater than 10.5" w.c..NOTE: A minimum horizontal distance of 48" between theregulator and the furnace flue discharge is required.

5. With all units on a common line operating under full LPgas main supply pressure should be at least 11.0" w.c. andmust be no greater than 14.0" w.c., measured at the unitgas valve. Unit will not function satisfactorily if supply gaspressure is less than 11.0" w.c. or greater than 14.0" w.c..

6. All pipe connections should be sealed with a pipe threadcompound, which is resistant to the fuel used with thefurnace. A soapy water solution should be used to checkall joints for leaks. A 1/8" NPT plugged tap is located onthe entering side of the gas valve for test gauge connectionto measure supply (main) gas pressure. Another 1/8" tapis provided on the side of the manifold for checkingmanifold pressure.

THIS UNIT AND ITS INDIVIDUAL SHUTOFF VALVE MUST BE DISCONNECTED FROM THE GAS SUPPLY SYSTEM DURING ANY PRESSURE TESTING OF THAT SYSTEM AT TEST PRESSURES IN EXCESS OF 1/2 PSIG (13.8” W.C.).

WARNING

THIS UNIT MUST BE ISOLATED FROM THE GAS SUPPLY PIPING SYSTEM BY CLOSING ITS INDIVIDUAL MANUAL SHUTOFF VALVE DURING ANY PRESSURE TESTING EQUAL TO OR LESS THAN 1/2 PSIG.

CAUTION

7. There must be no obstruction to prevent the flow ofcombustion and ventilating air. A vent stack is not requiredand must never be used. The power venter will supply anadequate amount of combustion air as long as the airpassageways are kept free of any obstructions and therecommended external unit clearances are maintained.

CIRCULATING AIR AND FILTERSDUCTWORK

The supply duct should be provided with an access panel largeenough to inspect the air chamber downstream of the heat ex-changer. A cover should be tightly attached to prevent air leaks.

Ductwork dimensions are shown in the roof curb installationmanual.

If desired, supply and return duct connections to the unit may bemade with flexible connections to reduce possible unit operatingsound transmission.

VENTING

NOTE: Venting is self-contained.

The inductor motor on DCG units is a dual voltage motor. It is factorywired for 230 volts. If field supply power is 208V, the installer mustswap the connections of the black and red leads (located in theblower compartment) to ensure correct inductor motor operation.

CONDENSATE DRAIN CONNECTIONCONDENSATE DRAIN CONNECTION

A 3/4” female NPT drain connection is supplied on the end of theunit and bottom of the drain pan for condensate piping. An exter-nal trap must be installed for proper condensate drainage.

DRAINCONNECTION

UNIT 2" MINIMUM

FLEXIBLETUBING-HOSEOR PIPE

3" MINIMUM

A POSITIVE LIQUIDSEAL IS REQUIRED

DRAIN CONNECTION

Install condensate drain trap as shown. Use 3/4" drain line and fit-tings or larger. Do not operate without trap.

13

HORIZONTAL DRAIN

Drainage of condensate directly onto the roof may be acceptable;refer to local code. It is recommended that a small drip pad ofeither stone, mortar, wood or metal be provided to prevent anypossible damage to the roof.

CLEANING

Due to the fact that drain pans in any air conditioning unitwill have some moisture in them, algae and fungus willgrow due to airborne bacteria and spores. Periodic clean-ing is necessary to prevent this build-up from plugging thedrain.

STARTUP, ADJUSTMENTS, AND CHECKS

HIGH VOLTAGE!TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, BOND THE FRAME OF THIS UNIT TO THE BUILDING ELECTRICAL GROUND BY USE OF THE GROUNDING TERMINAL PROVIDED OR OTHER ACCEPTABLE MEANS. DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT.

WARNING

PRE-STARTUP INSTRUCTIONS - GENERAL

TO PREVENT PROPERTY DAMAGE OR PERSONAL INJURY, DO NOT START THE UNIT UNTIL ALL NECESSARY PRE-CHECKS AND TEST HAVE BEEN PERFORMED.

CAUTION

Prior to the beginning of Startup, Adjustments, and Checks proce-dures, the following steps should be completed in the building.

MOVING MACHINERY HAZARD!TO PREVENT POSSIBLE PERSONAL INJURY OR DEATH, DISCONNECT POWER TO THE UNIT AND PADLOCK IN THE “OFF” POSITION BEFORE SERVICING FANS.

WARNING

This unit is equipped with an electronic ignition device to auto-matically light the main burners. It also has a power vent blowerto exhaust combustion products.

On new installations, or if a major component has been replaced,the operation of the unit must be checked.

Check unit operation as outlined in the following instructions. Ifany sparking, odors, or unusual sounds are encountered, shut offelectrical power and recheck for wiring errors, or obstructions inor near the blower motors. Duct covers must be removed beforeoperating unit.

The Startup, Adjustments, and Checks procedure provides a step-by-step sequence which, if followed, will assure the proper startupof the equipment in the minimum amount of time. Air balancingof duct system is not considered part of this procedure. However,it is an important phase of any air conditioning system startup andshould be performed upon completion of the Startup, Adjustments,

and Checks procedure. The Startup, Adjustments, and Checks pro-cedure at outside ambients below 55°F should be limited to a readi-ness check of the refrigeration system with the required final checkand calibration left to be completed when the outside ambientrises above 55°F.

TEMPORARY HEATING OR COOLING

If the unit is to be used for temporary heating or cooling, a “Startup,Adjustments, and Checks” must first be performed in accordancewith this manual. Damage or repairs due to failure to comply withthese requirement are not covered under the warranty. After themachines are used for temporary heating or cooling, inspect thecoils, fans, and motors for unacceptable levels of construction dustand dirt and install new filters.

CONTRACTOR RESPONSIBILITY

The installing contractor must be certain that:

• All supply and return air ductwork is in place, properlysealed, and corresponds with installation instructions.

• All thermostats are mounted and wired in accordancewith installation instructions.

• All electric power, all gas, hot water or steam lineconnections, and the condensate drain installation havebeen made to each unit on the job. These main supplylines must be functional and capable of operating all unitssimultaneously.

• Requirements are met for venting and combution air.• Air filters are in place.• Input rate and temperature rise are adjusted per rating

plate.

ROOF CURB INSTALLATION CHECK

Inspect the roof curb for correct installation. The unit and curbassembly should be level. Inspect the flashing of the roof mount-ing curb to the roof, especially at the corners, for good workman-ship. Also check for leaks around gaskets. Note any deficiencies ina separate report and forward to the contractor.

OBSTRUCTIONS, FAN CLEARANCE AND WIRING

Remove any extraneous construction and shipping materials thatmay be found during this procedure. Rotate all fans manually tocheck for proper clearances and that they rotate freely. Check forbolts and screws that may have jarred loose during shipment tothe job site. Retighten if necessary. Re-tighten all electrical con-nections.

FIELD DUCT CONNECTIONS

Verify that all duct connections are tight and that there is no airbypass between supply and return.

FILTER SECTION CHECK

Remove filter section access panels and check that filters are prop-erly installed. Note airflow arrows on filter frames.

14

PRE-STARTUP PRECAUTIONS

Transformer and Induced Draft Motor

NOTE: On the 208/230 volt units only.

Ensure the transformer and induced draft motor are set on theappropriate voltage taps. Both the transformer tap and induceddraft motor are set on 230v from the factory. To change the in-duced draft motor voltage, remove the black induced draft motorwire from the unused terminal on the ignition control board andswap it with the red wire coming from the induced draft motor.

It is important to your safety that the unit has been properlygrounded during installation. Check ground lug connection in maincontrol box for tightness prior to closing circuit breaker or discon-nect switch. Verify that supply voltage on line side of disconnectagrees with voltage on unit identification plate and is within theutilization voltage range as indicated in Appendix B Electrical Data.

System Voltage - That nominal voltage value assigned to a circuitor system for the purpose of designating its voltage class.

Nameplate Voltage - That voltage assigned to a piece of equip-ment for the purpose of designating its voltage class and for thepurpose of defining the minimum and maximum voltage at whichthe equipment will operate.

Utilization Voltage - The voltage of the line terminals of the equip-ment at which the equipment must give fully satisfactory perfor-mance. Once it is established that supply voltage will be main-tained within the utilization range under all system conditions,check and calculate if an unbalanced condition exists betweenphases. Calculate percent voltage unbalance as follows:

Three Phase Models

3) PERCENT VOLTAGE UNBALANCE

2) MAXIMUM VOLTAGE DEVIATIONSFROM AVERAGE VOLTAGE

1) AVERAGE VOLTAGE

HOW TO USE THE FORMULA:EXAMPLE: With voltage of 220, 216, and 2131) Average Voltage = 220+216+213=649 / 3 = 2162) Maximum Voltage Deviations from Average Voltage = 220 - 216 = 4

3) Percent Voltage Unbalance = 100 x = = 1.8%

Percent voltage unbalance MUST NOT exceed 2%.

4216

400216

= 100 X

CONTROL VOLTAGE CHECK

With disconnect switch in the open “OFF” position, disconnectblue wire from low voltage transformer TRANS1. Close the discon-nect switch to energize TRANS1 control transformer. Check pri-mary and secondary (24V) of control transformer TRANS1.

AIR FLOW ADJUSTMENTS

NOTE: For 2 Speed Models, airflow adjustments must be made onhigh speed, i.e., 2nd stage cooling or in heat mode.The drive on the supply fan is typically set in the middle of theRPM range. The drive motor sheave pitch diameter is field adjust-

able for the required airflow. Refer to the following “DriveAdjustments” section.

When the final adjustments are complete, the current draw of themotor should be checked and compared to the full load currentrating of the motor. The amperage must not exceed the servicefactor stamped on the motor nameplate. The total airflow mustnot be less than that required for operation of the electric heatersor the furnace.

If an economizer is installed, check the unit operating balance withthe economizer at full outside air and at minimum outside air. Uponcompletion of the air flow balancing, we recommend replacingthe variable pitched motor sheave with a properly-sized fixedsheave. A matching fixed sheave will provide longer belt and bear-ing life and vibration free operation. Initially, it is best to have avariable pitched motor sheave for the purpose of airflow balanc-ing, but once the balance has been achieved, fixed sheaves main-tain alignment and minimize vibration more effectively. For directdrive units, move green wire for fan.

NOTE: Never run CFM below 300 CFM per ton. Evaporator freez-ing or poor unit performance is possible.

EVAPORATOR FAN ROTATION CHECK

Check that fan rotates clockwise when viewed from the drive sideof unit and in accordance with rotation arrow shown on blowerhousing. If it does not, reverse any two incoming power cables atSingle Point Power Block. In this case, repeat bearing check.

Do not attempt to change load side wiring. Internal wiring assuresall motors and compressors will rotate in correct direction onceevaporator fan motor rotation check has been made.

ELECTRICAL INPUT CHECK

Make preliminary check of evaporator fan ampere draw and verifythat motor nameplate amps are not exceeded. A final check ofamp draw should be made upon completion of air balancing ofthe duct system (see Appendix B).

SET EVAPORATOR FAN RPM

Actual RPM’s must be set and verified with a tachometer or strobelight. Refer to Appendex A for basic unit fan RPM. Refer also to“Airflow” section of this manual. With disconnect switch open,disconnect thermostat wires from terminals Y and W. This will pre-vent heating and mechanical cooling from coming on. Place ajumper wire across terminals R and G at TB1 terminal block. Closedisconnect switch; evaporator fan motor will operate so RPM canbe checked.

For gas heat units, the airflow must be adjusted so that the airtemperature rise falls within the ranges given stated on Data Plate(see Appendix A - Blower Performance).

BELT DRIVE MODELS ONLYThe drive on the supply fan is typically set in the middle of theRPM range. The drive motor sheave pitch diameter is field adjust-able for the required airflow. Refer to “Motor Sheave Adjustmens”section.

15

Upon completion of the air flow balancing, we recommend re-placing the variable pitched motor sheave with a properly-sizedfixed sheave. A matching fixed sheave will provide longer belt andbearing life and vibration free operation. Initially, it is best to havea variable pitched motor sheave for the purpose of airflow balanc-ing, but once the balance has been achieved, fixed sheaves main-tain alignment and minimize vibration more effectively. For directdrive units, move fan speed wire.

BEARING CHECK

Prior to energizing any fans, check and make sure that all setscrewsare tight so that bearings are properly secured to shafts.

TENSION AND ALIGNMENT ADJUSTMENT

Correct belt tension is very important to the life of your belt. Tooloose a belt will shorten its life; too tight, premature motor andbearing failure will occur. Check you belt drive for adequate “run-in” belt tension by measuring the force required to deflect thebelt at the midpoint of the span length. Belt tension force can bemeasured using a belt tension gauge, available through most beltdrive manufacturers.

SPAN LENGTH t*DEFLECTION

FORCE

h

C

dH

D

*Apply force to the center of the span.

t = Span length, inchesC = Center distance, inchesD = Larger sheave diameter, inchesd = Smaller sheave diameter, inchesh = Deflection height, inches

DRIVE BELT TENSION ADJUSTMENT

BELT DRIVE Used New

7.5 Ton 2.6 to 3.6 4.5 ± .5 5.5 ± .5 1/4 ± 1/16

8.5 2.6 to 3.6 4.5 ± .5 5.5 ± .5 1/4 ± 1/16

10 Ton 3.0 to 4.0 4.5 ± .5 5.5 ± .5 1/4 ± 1/16

1/4 ± 1/16

1/4 ± 1/16

Standard

MODELDEFLECTION

(in)

DEFLECTIONFORCE (lbs)

SHEAVEDIAMETER

(in)

TYPE

12.5 Ton 2.6 to 3.6 4.5 ± .5 5.5 ± .5

A, AX

RECOMMENDED POUNDS OF FORCE PER BELT

When new V-belts are installed on a drive the initial tension willdrop rapidly during the first few hours. Check tension frequentlyduring the first 24 hours of operation. Subsequent retensioningshould fall between the minimum and maximum force. To deter-mine the deflection distance from the normal position, use astraightedge or stretch a cord from sheave to sheave to use as areference line. On multiple belt drives, an adjacent undeflectedbelt can be used as a reference.

MOTOR SHEAVE ADJUSTMENTS

VL, VM & 2VP VARIABLE PITCH KEY TYPE MOTOR SHEAVES

The driving and driven motor sheaves should be in alignment witheach other and the shafts parallel.

VL & VM SHEAVES ADJUSTMENT

1. Loosen set screw “B” using a 5/32" Allen key.2. Making half or full turns from closed position, adjust

sheave pitch diameter for desired speed. DO NOT OPENMORE THAN SIX FULL TURNS.

3. Tighten set screw “B” securely over flat.4. Carefully put on belts and adjust belt tension. DO NOT

FORCE BELTS OVER GROOVES.5. Ensure all keys are in place and the set screws tight before

starting drive. Recheck set screws and belt tension after24 hours service.

NOTE: Future adjustments should be made by loosening the belttension and increasing or decreasing the pitch diameter of thesheave by half or full turns as required. Readjust belt tension beforestarting drive.

C

B

VL & VM

NOTE: Do not operate sheave with flange projecting beyond thehub end.

GAS SYSTEM CHECK

Pre-Operation Checks

1. Close the manual gas valve external to the unit.2. Turn off the electrical power supply to the unit.3. Set the room thermostat to its lowest possible setting.4. Remove the heat exchanger door on the side of the unit

by removing screws.5. This unit is equipped with an ignition device which

automatically lights the main burner. DO NOT try to lightburner by any other method.

16

6. Move the gas control valve switch to the OFF position. Donot force.

7. Wait five minutes to clear out any gas.8. Smell for gas, including near the ground. This is important

because some types of gas are heavier than air. If you havewaited five minutes and you do smell gas, immediatelyfollow the warnings on page 3 of this manual. If havingwaited for five minutes and no gas smell is noted, movethe gas control valve switch to the ON position.

9. Replace the heat exchanger door on the side of the unit.10. Open the manual gas valve external to the unit.11. Turn on the electrical power supply to the unit.12. Set the thermostat to desired setting.

GAS SUPPLY PRESSURES & REGULATOR ADJUSTMENTS

SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE UNIT BEFORE TURNING OFF THE ELECTRICAL SUPPLY.

WARNING

TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DO NOT FIRE GAS UNIT WITH FLUE BOX COVER REMOVED.

WARNING

NOTE: Except during brief periods when gas pressures are beingmeasured by qualified service personnel, the furnace access panelmust always be secured in place when the furnace is in operation.An inspection port in the access panel is provided to monitor theflame.The first step in checking out the gas-fired furnace is to test thegas supply piping to the unit for tightness and purge the system ofair using methods outlined in the latest edition of the NationalFuel Gas Code ANSI Z223.1. Verify that the disconnect switch is inthe “OFF” position. A soapy water solution should be used to checkfor gas leaks. Since the unit is subject to considerable jarring dur-ing shipment, it is extremely important that all gas connectionsand joints be tested for tightness. Gas piping downstream fromthe unit inlet should be checked for leaks during the subsequentsequence check.

The supply gas pressure should be adjusted to 7.0" w.c. on naturalgas and 11.0" on LP gas with the gas burners operating. If there ismore than one unit on a common gas line, the pressures shouldbe checked with all units under full fire. A supply pressure tap isprovided on the upstream side of the gas valve. A manifold pres-sure tap is provided on the manifold. The normal manifold pres-sure for full input is 3.5" w.c. on natural gas and 10.0" w.c. forpropane gas. Minimum gas supply pressure is 5.5" w.c. for naturalgas and 11.0" for propane gas. In order to obtain rating, gas supplypressure must be 11.0" w.c. for propane gas.

The pressure regulator on LP gas models is adjusted for 10.0" w.c.manifold pressure and is intended to prevent over-firing only. Donot attempt adjustment of the built-in pressure regulator unlessthe supply pressure is at least 7.0" w.c. on natural gas or 14.0" w.c.on propane gas. Check the location of the ignition electrode andthe flame sensor for correct gap setting.

NATURAL (Dia)

PROPANE (LP)(Dia)

210,000 6 35,000 #34 #52

GAS ORIFICESMAXIMUM INPUT (BTUH)

NUMBERof

BURNERS

MAXIMUMBTUH/BURNER

HEAT EXCHANGER AND BURNER ORIFICE SPECIFICATIONS

NOTE: Gas appliances located more than 2000 feet above sea levelmust be derated 4% per 1000 feet of total elevation and thatvariance in gas heating value and specific gravity require changein manifold pressure to obtain rating, it is mandatory that the inputbe adjusted at the installation site. All installations should be madeas outlined in the latest edition of the National Fuel Gas Code ANSIZ223.1, section “Procedures To Be Followed To Place An Appliancein Operation”. Refer also to the “User’s Information Manual”supplied with the unit for additional information on the gas furnace.

Gas Supply And Manifold Check

Gas supply pressure and manifold pressure with the burners oper-ating must be as specified on the rating plate.

Gas Inlet Pressure Check

Gas inlet pressure must be checked and adjusted in accordance tothe type of fuel being consumed.

With Power And Gas Off:

1. Connect a water manometer or adequate gauge to theinlet pressure tap of the gas valve.Inlet gas pressure can also be measured by removing thecap from the dripleg and installing a predrilled cap with ahose fitting.

With Power And Gas On:

2. Put unit into heating cycle and turn on all other gasconsuming appliances.

NATURAL Min. 5.0" W.C., Max. 10.0" W.C.

PROPANE Min. 11.0" W.C., Max. 14.0" W.C.

INLET GAS PRESSURE

NOTE: Inlet Gas Pressure Must Not Exceed the Maximum ValueShown.If operating pressures differ from above, make necessary pressureregulator adjustments, check piping size, etc., and/or consult withlocal utility.

17

Manifold Pressure Check

The gas valve has a tapped opening to facilitate measurement ofthe manifold pressure. A “U” Tube manometer having a scale rangefrom 0 to 12 inches of water should be used for this measure-ment. The manifold pressure must be measured with the burnersoperating.

To adjust the pressure regulator, remove the adjustment screw orcover on the gas valve. Turn out (counterclockwise) to decreasepressure, turn in (clockwise) to increase pressure. Only small varia-tions in gas flow should be made by means of the pressure regula-tor adjustment. In no case should the final manifold pressure varymore than plus or minus 0.3 inches water column from the speci-fied nominal pressure. Any major changes in flow should be madeby changing the size of the burner orifices. The measured inputrate to the furnace must not exceed the rating specified on theunit rating plate.

For natural gas, the manifold pressure must be between 3.2 and3.8 inches w.c. (3.5 nominal) for high fire and between 1.7 and 2.3inches w.c. (2.0 nominal) for low fire.

For propane gas, the manifold pressure must be between 9.7 and10.3 inches w.c. (10.0 nominal) for high fire and between 6.7 and7.3 inches w.c. (7.0 nominal) for low fire.

Gas Input (Natural Gas Only) Check

It is the responsibility of the contractor to adjust the gas input tothe unit.

To measure the gas input use a gas meter and proceed asfollows:1. Turn off gas supply to all other appliances except the unit.2. With the unit operating, time the smallest dial on the

meter for one complete revolution. If this is a 2 cubic footdial, divide the seconds by 2; if it is a 1 cubic foot dial, usethe seconds as is. This gives the seconds per cubic foot ofgas being delivered to the unit.

3. INPUT=GAS HTG VALUE x 3600 / SEC. PER CUBIC FOOTExample: Natural gas with a heating value of 1000 BTU per cubicfoot and 34 seconds per cubic foot as determined by Step 2, then:

Input = 1000 x 3600 / 34 = 106,000 BTU per Hour. NOTE:BTU content of the gas should be obtained from the gassupplier. This measured input must not be greater thanshown on the unit rating plate.

Adjust input rate by varying the adjustment of the gas pressureregulator on the gas valve. All adjustments must be made withfurnace operating at high fire and at normal operating tempera-ture. A manometer should be connected to the gas valve to verifypressure is within the specified range (see following figures formanometer connections). Clockwise rotation of the pressure regu-lator screw increases pressure and gas flow rate. Turn screw coun-terclockwise to decrease pressure and gas flow rate. After adjust-ment the furnace temperature rise must be within the range speci-fied on the unit data plate. NOTE: Thermal efficiency of the fur-nace is a product efficiency rating determined under continuousoperating conditions independent of any installed system.

Pressure RegulatorAdjustment

(Under Cap Screw)

Gas ValveOn/Off

SelectorSwitch

INLET OUTLET

Inlet PressureTap

Outlet PressureTap

WHITE-RODGERS 36G22 - SINGLE STAGE

InletPressure Boss

Low FireRegulator Adjust

Manometer

ManometerHose

High Fire RegulatorAdjust Regulator

VentOutlet

Pressure Boss

Open toAtmosphere

WHITE-RODGERS 36G54 (2-STAGE) CONNECTED TO MANOMETER

PRESSURE ADJUSTMENTS

TO CONNECT MANOMETER TO GAS VALVE:1. Back outlet pressure test screw (inlet/outlet pressure boss)

out one turn (counterclockwise, not more than one turn).2. Attach a hose and manometer to the outlet pressure boss

of the valve.TO REMOVE MANOMETER FROM GAS VALVE:

1. Remove manometer hose from outlet pressure boss.2. Turn outlet pressure test screw in to seal pressure port

(clockwise, 7 in-lb. minimum).3. Turn on electrical power and gas supply to the system.4. Turn on system power and energize valve.5. Using a leak detection solution or soap suds, check for

leaks at pressure boss screw. Bubbles forming indicate aleak. SHUT OFF GAS AND FIX ALL LEAKS IMMEDIATELY.

TO PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE GAS MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE. ONLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING THE GAS VALVE PRESSURE REGULATOR.

CAUTION

18

4. Relight all other appliances turned off in step 1. Be sure allpilot burners are operating.

Main Burner Flame Check

Flames should be stable, soft and blue (dust may cause orangetips but they must not be yellow) and extending directly outwardfrom the burner without curling, floating or lifting off.

Temperature Rise Check

Check the temperature rise through the unit by placing thermom-eters in supply and return air registers as close to the unit as pos-sible. Thermometers must not be able to sample temperature di-rectly from the unit heat exchangers, or false readings could beobtained.

1. All registers must be open; all duct dampers must be intheir final (fully or partially open) position and the unitoperated for 15 minutes on HIGH FIRE before takingreadings.

2. The temperature rise must be within the range specifiedon the rating plate.

NOTE: Air temperature rise is the temperature difference betweensupply and return air.With a properly designed system, the proper amount of tempera-ture rise will normally be obtained when the unit is operated atrated input with the recommended blower speed.

If the correct amount of temperature rise is not obtained, it maybe necessary to change the blower speed. A higher blower speedwill lower the temperature rise. A slower blower speed will in-crease the temperature rise.

NOTE: Blower speed MUST be set to give the correct airtemperature rise through the unit as marked on the rating plate.

NORMAL SEQUENCE OF OPERATION

NOTE: The ignition control board blower off delay is factory set at150 seconds. This factory setting can also be set to 120 or 135seconds by placing the jumper on the desired setting.

HEATING

This unit has one (RS) Manual Reset Limit Control Switch. Checkthe limit to make sure it has not tripped. The limit may arrive atthe job site tripped as a result of shipping shock.

If the ventor motor comes on, but the unit does not attempt igni-tion, check if the ALS (Automatic Reset High Limit Control Switch)requires resetting.

1. With electricity and gas turned on, the system switch inthe “HEAT” or “AUTO” position and the fan switch in the“AUTO” position, the thermostat will close the circuitbetween unit terminals R and W (R-W) when thetemperature falls below the thermostat setting.

2. D1 on IIC energizes relay IDMR.3. Relay IDMR energizes the ventor motor IDM.

4. Operation of the vent motor closes the pressure switch PSlocated in the burner compartment. the control theninitiates a 15-second pre-purge time delay. During thisperiod, the ventor motor will clear the combustionchamber of any residual gas.

5. After the pre-purge period, the ignition control energizesthe Wl-C gas valve and simultaneously initiates a “three(3)-try” spark ignition sequence.

6. When the burners are ignited, a minimum four (4) micro-amp DC current will flow through the flame between thesensor electrode and the grounded burner.

7. When the controller proves that the flame has beenestablished, it will keep the gas valve energized anddiscontinue the ignition spark. First stage manifoldpressure will be approximately 2.0" w.c. for natural gasand 7.0" w.c. for propane (LP).

8. If the control is unable to ignite the burners after its initialattempt, it will initiate another purge and spark sequence.A third purge and spark sequence will be initiated if thesecond attempt is unsuccessful. If the third attempt isunsuccessful, the controller will close the gas valve andlock itself out. It may be reset by momentarily interruptingpower. This may be accomplished by briefly lowering theroom thermostat set-point below room temperature, orby shutting off the main power to the unit. (See TP-105for more details.)

9. Integrated ignition control will close its normally opencontacts after a delay of approximately 30 seconds. Thisaction energizes contactor BC and starts the supply fanmotor. Operation of the supply fan circulates air acrossthe heat exchanger and delivers heated air to theconditioned space.

10. When the space temperature rises, the thermostat willopen R-W. Opening R-W will cause the gas valve to close,and the furnace to shut down.

11. The furnace has three high temperature limit controls,which can shut down the burner. They do not shut downthe ventor motor.

Unit Shutdown

1. Set the thermostat to lowest setting.2. Turn off the electrical power supply to the unit.3. Remove the heat exchanger door on the side of the unit

by removing screws.4. Move the gas control valve switch to the OFF position. Do

not force.5. Close manual gas shut off valve external to the unit.6. Replace the heat exchanger door on the unit.7. If cooling and/or air circulation will be desired, turn ON

the electrical power.

AUTOMATIC RESET HIGH LIMIT CONTROL (LS)Located in the burner compartment on the heat exchanger, its sens-ing element projects through the blower section bulkhead andsenses the temperature at the rear of the furnace. It will cycle thefurnace off if the temperature exceeds 100°F plus maximum rise.

19

AUXILIARY RESET HIGH LIMIT CONTROL (ALS)Located in the blower compartment on the blower housing, itsenses air temperature within the blower compartment and pro-tects the filters from excessive temperature. It will shut down thefurnace if it senses excessive temperatures.

Elevated temperatures at the control are normally caused by blowerfailure. The reason for the opening should be determined and re-paired prior to resetting.

MANUAL RESET FLAME ROLLOUT CONTROL (RS)Located in the burner compartment at the top of the burner as-sembly, it senses high temperature that could occur if the heatexchanger tubes were plugged and the flame was rolling out in-stead of entering the tubes. It has a manual push-button reset thatcannot be actuated until the limit control has cooled.

The reason for elevated temperatures at the control should bedetermined and repaired prior to resetting this manual reset con-trol.

TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE OR EXPLOSION, A QUALIFIED SERVICER MUST INVESTIGATE THE REASON FOR THE ROLLOUT PROTECTION DEVICE TO OPEN BEFORE MANUALLY RESETTING THE ROLLOUT PROTECTION DEVICE.

WARNING

REFRIGERATION SYSTEM CHECKS

This unit is equipped with a piston type metering device.

Ensure the hold-down bolts on the compressor are secure and havenot vibrated loose during shipment. Check that the vibration grom-mets have been installed and visually check all piping for damageand leaks and repair if necessary. The entire system has been fac-tory charged and tested, making it unnecessary to field charge.Factory refrigerant charge is shown on the unit’s nameplate.

To confirm charge levels or, if a leak occurs and charge needs to beadded to the system, it is recommended to evacuate the systemand recharge refrigerant to the unit’s nameplate specifications.This unit has been rated in the cooling mode at the AHRI ratedconditions of: indoor (80°F db/67°F wb) and outdoor (95°F db).While operating at this condition, the superheat should range from9°F to 11°F for each refrigeration circuit measured at the suctionservice port located near the compressor.

START-UP PROCEDURE AND CHECKLIST

Begin with power turned off at all disconnects.

1. Turn thermostat system switch to “Cool,” and fan switchto “Auto” and turn temperature setting as high as it willgo.

2. Inspect all registers and set them to the normal openposition.

3. Turn on the electrical supply at the disconnect.

4. Turn the fan switch to the “ON” position. The blowershould operate after a 7-second delay.

5. Turn the fan switch to “Auto” position. The blower shouldstop after a 65 second delay.

6. Slowly lower the cooling temperature until first stage COOL(LOW COOL) starts. The blower, both fans, and first stagecompressor should now be operating. Allow the unit torun 10 minutes, make sure cool air is being supplied bythe unit.

7. Lower the cooling temperature further until second stageCOOL (HIGH COOL) starts. The blower, both fans, and bothcompressors should now be operating. Allow the unit torun 10 minutes, make sure cool air is being supplied bythe unit.

8. Turn the temperature setting to the highest position,stopping the unit. The indoor blower will continue to runfor 65 seconds.

9. Turn the thermostat system switch to “OFF” anddisconnect all power when servicing the unit.

REFRIGERATION SEQUENCE CHECK

With the disconnect switch open, remove the field connected ther-mostat wire from terminal R on TB1 terminal block. Place a jumperacross terminals R and G, and across R and Y on TB1 terminal block.Close the disconnect switch. The following operational sequenceshould be observed.

1. Current through primary winding of transformer TRANS1energizes the 24-volt control circuit.

2. To simulate a mechanical call for cooling from the wallthermostat, place a jumper across terminals R and Y1 ofterminal block TB1.

3. UNIT WITH ECONOMIZER OPTION: The compressor circuitis interlocked through terminals 3 and 4 of the economizermodule. If the outdoor air enthalpy (temperature andhumidity) is not suitable for cooling, the economizerterminals will be closed permitting compressor to beenergized.

4. The belt drive blower contactor closes its contacts L1, L2and L3 to T1, T2 and T3 to provide power to the supply fanmotor.

5. Check supply fan rotation. If the supply fan is rotating inthe wrong direction, disconnect and lock off Single PointPower Block. Do not attempt to change load side wiring.Internal wiring is set at the factory to assure that the supplyfan and compressors all rotate in the proper direction.Verification of correct supply fan rotation at initial startupwill also indicate correct compressor rotation. Reconnectpower and check for proper operation.

6. Compressor contactor closes its contacts L1, L2 and L3 toT1, T2 and T3 to provide power to the compressor motorCOMP 1; COMP 2, if conditions are correct. In addition,contactor C1 closes its contact L3 to T3 , energizing thecondenser fan motor.

BURN HAZARD! DO NOT TOUCH! DISCHARGE LINE MAY BE HOT!

WARNING

20

7. Check that each compressor is operating correctly. Thescroll compressors in these units MUST operate in theproper rotation. To ensure the compressors are operatingin the correct direction, check the compressor dischargeline pressure or temperature after each compressor isstarted.The discharge pressure and discharge line temperatureshould increase. If this does not occur and the compressoris producing an exceptional amount of noise, perform thefollowing checks.• Ensure all compressors and the supply fan motor are

operating in the proper direction. If a single motor isoperating backwards, check the power wiring for thatmotor and correct any leads that have beeninterchanged at the contactor or at the motor.

• If all of the motors are operating backward, disconnectthe unit power supply and lock it in the “OFF” position.Switch two leads of the power supply at the unit SinglePoint Power Block. Reconnect power and check forcompressor and supply fan motor operation.

8. With all safety devices closed, the system will continuecooling operation until the thermostat is satisfied.

9. Disconnecting the jumper wire between R and Y1 and Y2and between R and G on TB1 terminal block will simulatea satisfied thermostat. The compressors will cycle off andIIC (pin 12) will initiate its time delay cycle. The compressorand the supply fan will cycle off.

10. After a time delay of approximately 3 minutes, thecompressor control circuits will be ready to respond to asubsequent call for cooling from the wall thermostat.

11. Open disconnect switch. Reconnect the field thermostatwire at terminal R on terminal block TB1.

START-UP PROCEDURE AND CHECKLIST FOR 2 SPEED MODELS:

Models with a V in the 11th position of the model number.

For 2 speed models, the indoor blower will operate on lowspeed when in “Fan Only” mode or while in first stage “Cooling”mode. Unit will operate on high speed in “Heating” mode andwhile in second stage “Cooling” mode.

The same start-up procedure should be followed as in Start-UpProcedure and Checklist with the understanding that in Step 6 theindoor blower will run at low speed (~1175 motor rpm) and in Step7 the indoor blower will operate at high speed (~1775 motor rpm).

NOTE: While in the Cooling Mode, to prevent frost from formingon the evaporator while the unit is operating in outdoortemperatures of 65°F or lower, it is recommended that a lowambient kit (LAKT-**) is used. This is strongly recommended for 2Speed models due to the lower airflow while in the first stagecooling. To further protect the compressor from damage duringlow ambient conditions, a Freezestat Kit (FSK01) can be added thatturns the compressor off when the evaporator temperature dropstoo low.

HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

REFRIGERATION PERFORMANCE CHECK

Check that compressor RLA corresponds to values shown in Ap-pendix B. RLA draw can be much lower than values listed at lowload conditions and low ambient condensing temperatures. Val-ues in Appendix B can slightly exceed at high load conditions andhigh ambient condensing temperatures.

FINAL SYSTEM CHECKS

1. Check to see if all supply and return air grilles are adjustedand the air distribution system is balanced for the bestcompromise between heating and cooling.

2. Check for air leaks in the ductwork. See Sections on AirFlow Adjustments.

3. Make sure the unit is free of “rattles”, and the tubing inthe unit is free from excessive vibration. Also make suretubes or lines are not rubbing against each other or sheetmetal surfaces or edges. If so, correct the trouble.

4. Set the thermostat at the appropriate setting for coolingand heating or automatic change over for normal use.

5. Be sure the Owner is instructed on the unit operation, filter,servicing, correct thermostat operation, etc.

MAINTENANCE

HIGH VOLTAGE !DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

WARNING

SHEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION.

CAUTION

21

Preventive maintenance is the best way to avoid unnecessary ex-pense and inconvenience. Have this system inspected at regularintervals by qualified service personnel, at least twice a year. Rou-tine maintenance should cover the following items:

1. Tighten all belts, set screws, and wire connections.2. Clean evaporator and condenser coils mechanically or with

cold water, if necessary. Usually any fouling is only mattedon the entering air face of the coil and can be removed bybrushing.

3. Lubricate motor bearings.4. Align or replace belts as needed.5. Replace filters as needed (see Filters section).6. Check for blockage of condensate drain.7. Check power and control voltages.8. Check running amperage.9. Check operating temperatures and pressures.

10. Check and adjust temperature and pressure controls.11. Check and adjust damper linkages.12. Check operation of all safety controls.13. Examine gas furnaces (see below and the User ’s

Information Manual).14. Check condenser fans and tighten set screws.

FILTERS

TO PREVENT PROPERTY DAMAGE DUE TO FIRE AND LOSS OF EQUIPMENT EFFICIENCY OR EQUIPMENT DAMAGE DUE TO DUST AND LINT BUILD UP ON INTERNAL PARTS, NEVER OPERATE UNIT WITHOUT AN AIR FILTER INSTALLED IN THE RETURN AIR SYSTEM.

CAUTION

Every application may require a different frequency of replace-ment of dirty filters. Filters must be replaced at least every three(3) months during operating seasons.

Dirty filters are the most common cause of inadequate heating orcooling performance. Filter inspection should be made at leastevery two months; more often if necessary because of local condi-tions and usage.

Dirty throwaway filters should be discarded and replaced with anew, clean filter.

Disposable return air filters are supplied with this unit. See theunit Specification Sheet or Technical Manual for the correct sizeand part number. To remove the filters, remove the filter accesspanel on return side of the unit.

CABINET FINISH MAINTENANCE

Use a fine grade automotive wax on the cabinet finish to maintainthe finish’s original high luster. This is especially important in in-stallations with extended periods of direct sunlight.

CONDENSER AND INDUCED DRAFT MOTORS

Bearings on the condenser fan motors and the combustion fanmotor are permanently lubricated. No additional oiling is required.

LUBRICATION

The fan shaft bearings and the supply fan motor have grease fit-tings that should be lubricated during normal maintenance checks.

CLEAN OUTSIDE COIL (QUALIFIED SERVICER ONLY)The coil with the outside air flowing over it should be inspectedannually and cleaned as frequently as necessary to keep the finnedareas free of lint, hair and debris.

FLAME SENSOR (QUALIFIED SERVICER ONLY)A drop in the flame current can be caused by a nearly invisiblecoating on the flame sensor. This coating, created by the fuel orcombustion air supply, can be removed by carefully cleaning theflame sensor with steel wool.

NOTE: After cleaning, the microamp signal should be stable and inthe range of 4 - 6 microamps DC.

FLUE PASSAGES (QUALIFIED SERVICER ONLY)At the start of each heating season, inspect and, if necessary, cleanthe unit flue passage.

INSPECTION & CLEANING

All flue product carrying areas of the furnace, its vent system, andmain burners should be examined by a qualified service agencybefore the start of each heating season. This examination is nec-essary for continued safe operation. Particular attention shouldbe given to deterioration from corrosion or other sources. Thisexamination is accomplished in the following manner.

1. Disconnect power to the unit and remove furnace sectionaccess panel.

2. Remove burner assembly:a. Disconnect the three wires from the gas valve after noting

which wires are connected to each terminal.b. Disconnect wires from the flame rod and ignition

electrode.c. Disconnect the gas piping at the union.d. The entire burner assembly can now be removed from

the unit.

NOTE: Use all screws that were removed; they are necessary forsafe and proper operation of the unit.

3. Inspect and periodically clean the vent outlet (bird screen)on the access panel.

NOTE: Periodic observation of the flame and a log of C02measurements are recommended. This will aid in determiningwhether the furnace is operating efficiently or if the furnacerequires cleaning.Flames should be stable, soft and blue (dust may cause orangetips but must not be yellow). The flames must extend directly out-ward from the burner without curling, floating or lifting off.

22

BURNER FLAME

TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK, DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT. CONTACT A QUALIFIED SERVICER AT ONCE IF AN ABNORMAL FLAME SHOULD DEVELOP.

WARNING

At least once a year, prior to or during the heating season, make avisual check of the burner flames.

NOTE: This will involve removing and reinstalling the heat exchangerdoor on the unit, which is held by two screws. If you are uncertainabout your ability to do this, contact a qualified servicer.If a strong wind is blowing, it may alter the airflow pattern withinthe unit enough that an inspection of the burner flames is notpossible.

FUNCTIONAL PARTS

Refer to the unit Parts Catalog for a list of functional parts. Partsare available from your distributor.

TROUBLESHOOTING

IGNITION CONTROL ERROR CODES

The following presents probable causes of questionable unit op-eration. Refer to Diagnostic Indicator Chart for an interpretationof the signal and to this section for an explanation.

Remove the control box access panel and note the number of di-agnostic LED flashes. Refer to Diagnostic Indicator Chart for aninterpretation of the signal and to this section for an explanation.

Internal Control Failure

If the integrated ignition control in this unit encounters an inter-nal fault, it will go into a “hard” lockout and turn off the diagnosticLED. If diagnostic LED indicates an internal fault, check power sup-ply to unit for proper voltage, check all fuses, circuit breakers andwiring. Disconnect electric power for five seconds. If LED remainsoff after restoring power, replace control.

ABNORMAL OPERATION - HEATING CODES

External Lockout (1 FLASH CODE)

An external lockout occurs if the integrated ignition control deter-mines that a measurable combustion cannot be established withinthree (3) consecutive ignition attempts. If flame is not establishedwithin the seven (7) second trial for ignition, the gas valve isdeenergized, 15 second inter-purge cycle is completed, and igni-tion is reattempted. The control will repeat this routine three timesif a measurable combustion is not established. The control willthen shut off the induced draft blower and go into a lockout state.

If flame is established but lost, the control will energize the circu-lator blower at the heat speed and then begin a new ignition se-quence. If flame is established then lost on subsequent attempts,the control will recycle for four (4) consecutive ignition attempts(five attempts total) before locking out.

The diagnostic fault code is 1 flash for a lockout due to failed igni-tion attempts or flame dropouts. The integrated control will auto-matically reset after one hour, or it can be reset by removing thethermostat signal or disconnecting the electrical power supply forover five seconds. If the diagnostic LED indicates an external lock-out, perform the following checks:

• Check the supply and manifold pressures• Check the gas orifices for debris• Check gas valve for proper operation• Check secondary limit

A dirty filter, excessive duct static, insufficient air flow,a faulty limit, or a failed circulator blower can causethis limit to open. Check filters, total external ductstatic, circulator blower motor, blower motor speed tap(see wiring diagram), and limit. An interruption inelectrical power during a heating cycle may also causethe auxiliary limit to open. The automatic resetsecondary limit is located on top of the circulatorblower assembly.

• Check rollout limitIf the burner flames are not properly drawn into theheat exchanger, the flame rollout protection device willopen. Possible causes are restricted or blocked fluepassages, blocked or cracked heat exchanger, a failedinduced draft blower, or insufficient combustion air.The rollout protection device is a manual reset limitlocated on the burner bracket. The cause of the flamerollout must be determined and corrected beforeresetting the limit.

• Check flame sensorA drop in flame signal can be caused by nearly invisiblecoating on the sensor. Remove the sensor and carefullyclean with steel wool.

• Check wiringCheck wiring for opens/shorts and miswiring.

IMPORTANT: If you have to frequently reset your gas/electricpackage unit, it means that a problem exists that should becorrected. Contact a qualified servicer for further information.

23

Pressure Switch Stuck Open (2 FLASH CODE)

A pressure switch stuck open can be caused by a faulty pressureswitch, faulty wiring, a disconnected or damaged hose, a blockedor restricted flue, or a faulty induced draft blower.

If the control senses an open pressure switch during the pre-purgecycle, the induced draft blower only will be energized. If the pres-sure switch opens after ignition has begun the gas valve isdeenergized, the circulator blower heat off cycle begins, and theinduced draft blower remains on. The diagnostic fault code is twoflashes.

Pressure Switch Stuck Closed (3 FLASH CODE)

A stuck closed pressure switch can be caused by a faulty pressureswitch or faulty wiring. If the control encounters a pressure switchstuck closed, the induced draft blower remains off. The diagnosticLED code for this fault is three (3) flashes.

Open Thermal Protection Device (4 FLASH CODE)

If the primary limit switch opens, the gas valve is immediatelydeenergized, the induced draft and air circulating blowers are en-ergized. The induced draft and air circulator blowers remain en-ergized until the limit switch recloses. The diagnostic fault codefor an open limit is four (4) flashes.

A primary limit will open due to excessive supply air temperatures.This can be caused by a dirty filter, excessive duct static, insuffi-cient air flow, or a faulty limit. Check filters, total external ductstatic, blower motor, blower motor speed tap (see wiring diagram),and limit. This limit will automatically reset once the temperaturefalls below a preset level.

Flame Detected with Gas Valve Closed (5 FLASH CODE)

If flame is detected with the gas valve deenergized, the combus-tion and air circulator blowers are energized. The diagnostic faultcode is five (5) flashes for this condition. The control can be resetby removing the power supply to the unit or it will automaticallyreset after one hour. Miswiring is the probable cause for this fault.

ABNORMAL OPERATION - COOLING CODES

Short Cycle Compressor Delay (6 FLASH CODE)

The automatic ignition control has a built-in feature that preventsdamage to the compressor in short cycling situations. In the eventof intermittent power losses or intermittent thermostat operation,the ignition control will delay output to the compressor contactorfor three minutes from the time power is restored. (Compressoris off a total of three minutes). The diagnostic LED will flash six (6)times to indicate the compressor contactor output is being de-layed.

NOTE: Some electronic thermostats also have a built-in compressorshort cycle timer that may be longer than the three minute delaygiven above. If you are using an electronic thermostat and thecompressor has not started after three minutes, wait an additionalfive minutes to allow the thermostat to complete its short cycledelay time.

TO PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE GAS MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE. ONLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING THE GAS VALVE PRESSURE REGULATOR.

CAUTION

24

APPENDIX A BLOWER PERFORMANCE DATABELT DRIVE - STANDARD DOWN SHOT

NOTE: Unit factory shipped at 2.5 turns open. Tables represent dry coil without filter.

To compensate for filter, add 0.08" to measured E.S.P. SCFM correction for wet coil = 4%.

DCG090 STANDARD BELT DRIVE DOWN SHOT INCLUDES 2 SPEED MODELS AT HIGH SPEED

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.1 3522 750 1.14 3228 706 0.94 2964 661 0.730.3 3337 800 1.19 3102 756 1 2800 706 0.76 2504 661 0.590.5 3387 844 1.32 2834 806 0.99 2603 757 0.80.7 3453 893 1.5 2903 850 1.120.9 2957 899 1.29

DCG102 STANDARD BELT DRIVE DOWN SHOT INCLUDES 2 SPEED MODELS AT HIGH SPEED

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.1 3372 747 1.11 3078 703 0.91 2814 658 0.700.3 3187 797 1.16 2952 753 0.97 2650 703 0.730.5 3237 841 1.29 2684 803 0.96 2453 754 0.770.7 3303 890 1.47 2753 847 1.090.9 2807 896 1.26

DCG120 DOWN SHOT, STANDARD BELT DRIVE INCLUDES 2 SPEED MODELS AT HIGH SPEED

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP0.2 4316 780 1.57 4118 738 1.36 3771 687 1.08 3376 644 0.850.4 4282 830 1.76 3928 786 1.4 3595 740 1.130.6 4232 874 1.87 3872 830 1.52 3444 786 1.20.8 3839 880 1.64 3367 836 1.271 3326 885 1.4

1.2

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

DCG150 DOWN SHOT, STANDARD BELT DRIVE INCLUDES 2 SPEED MODELS AT HIGH SPEED

CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP

0.2 5514 2.92 5604 3.22 5064 2.16 4775 1.81 4514 1.49 4271 1.23

0.4 5279 2.74 5110 2.40 4696 1.94 4447 1.63 4123 1.31

0.6 5185 2.67 4813 2.20 4352 1.74 4039 1.43

0.8 4766 2.37 4526 2.02

1.0 4223 2.01

5

TURNS OPEN

ESP , In H20

0 1 2 3 4

25

NOTE: Unit factory shipped at 2.5 turns open. Tables represent dry coil without filter.

To compensate for filter, add 0.08" to measured E.S.P. SCFM correction for wet coil = 4%.

DCG090 HORIZONTAL STANDARD BELT DRIVE INCLUDES 2 SPEED MODELS AT HIGH SPEED

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.1 3381 703 0.99 3078 659 0.780.3 3560 796 1.26 3271 747 1.02 2946 703 0.82 2604 659 0.630.5 3492 841 1.36 3159 799 1.09 2819 752 0.860.7 3453 891 1.5 3094 846 1.180.9 2964 896 1.29 2524 852 0.961.1 2537 902 1.08

DCG102 HORIZONTAL STANDARD BELT DRIVE INCLUDES 2 SPEED MODELS AT HIGH SPEED

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.1 3231 700 0.96 2928 656 0.750.3 3410 793 1.23 3121 744 0.99 2796 700 0.790.5 3342 838 1.33 3009 796 1.06 2669 749 0.830.7 3303 888 1.47 2944 843 1.150.9 2814 893 1.26

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.2 4391 737 1.48 4054 693 1.22 3760 645 0.970.4 4314 781 1.61 3969 737 1.29 3534 693 10.6 4255 826 1.69 3894 781 1.38 3447 743 1.090.8 4234 876 1.85 3792 832 1.471.0 3724 877 1.591.2

DCG120 HORIZONTAL STANDARD BELT DRIVE INCLUDES 2 SPEED MODELS AT HIGH SPEED

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

APPENDIX A BLOWER PERFORMANCE DATABELT DRIVE - STANDARD HORIZONTAL

DCG150 STANDARD BELT DRIVE HORIZONTAL INCLUDES 2 SPEED MODELS AT HIGH SPEED

CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP

0.2 5762 3.08 5485 2.63 5140 2.21 4855 1.84 4513 1.48 4197 1.20

0.4 5550 2.91 5207 0 4857 2.03 4489 1.64 4100 1.29

0.6 5202 2.65 4922 2.25 4487 1.81 4113 1.45

0.8 4898 2.43 4515 1.99 4074 1.58

1.0 4549 2.20 4135 1.76

1.2 4258 2.01

TURNS OPEN ESP, In

H2O 0 1 2 3 4 5

26

NOTE: High Static airflow requires installation of High Static Kit (HSKT*), or factory-built High Static model. Unit factory shipped at 2.5 turns open.Tables represent dry coil without filter. To compensate for filter, add 0.08” to measured ESP SCFM correction for wet coil = 4%.

APPENDIX A BLOWER PERFORMANCE DATABELT DRIVE - HIGH STATIC DOWN SHOT

DCG090 DOWN SHOT, HIGH STATIC BELT DRIVE

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.7 3575 904 1.660.9 3258 925 1.56 3113 909 1.411.1 3580 1013 1.97 3001 948 1.42 2722 915 1.251.3 3616 1063 2.17 3247 1019 1.79 2646 959 1.31.5 3275 1069 2.05 2803 1025 1.681.7 3346 1118 2.24 2885 1074 1.971.9 3009 1125 2.052.1

DCG102 DOWN SHOT, HIGH STATIC BELT DRIVE

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP0.7 3425 901 1.63

0.9 3108 922 1.53 2963 906 1.38

1.1 3430 1010 1.94 2851 945 1.39 2572 912 1.22

1.3 3466 1060 2.14 3097 1016 1.76 2496 956 1.271.5 3125 1066 2.02 2653 1022 1.651.7 3196 1115 2.21 2735 1071 1.941.9 3251 1160 2.36 2859 1122 2.022.1 2914 1167 2.17

DCG120 DOWN SHOT, HIGH STATIC BELT DRIVE

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.8 4188 943 2.11 3793 889 1.671.0 4305 1002 2.39 3836 946 1.89 3416 893 1.451.2 4324 1053 2.63 3879 1003 2.11 3425 951 1.631.4 4428 1109 2.92 3973 1056 2.35 3434 1009 1.81.6 4465 1160 3.2 4088 1113 2.67 3506 1068 2.11.8 4129 1168 2.9 3625 1122 2.32.0 3694 1175 2.65

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

DO NOT OPERATE

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

DCG150 DOWN SHOT, HIGH STATIC BELT DRIVE

CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP

0.6 5515 3.21 5124 2.68

0.8 5840 4.06 5781 3.73 5344 3.07 4721 2.37

1.0 5908 4.49 5643 3.86 5369 3.36 4887 2.71 4365 2.13

1.2 5869 4.74 5542 4.11 5229 3.47 4853 2.92 4404 2.35 3986 1.88

1.4 5464 4.30 5180 3.75 4917 3.19 4584 2.71 4197 2.21

1.6 5229 4.05 4960 3.53 4397 2.75 4204 2.41

1.8 4961 3.78 4553 3.16

2.0 4790 3.61 4315 2.95

4 5 ESP, In

H20 0 1 2 3

TURNS OPEN

27

APPENDIX A BLOWER PERFORMANCE DATABELT DRIVE - HIGH STATIC HORIZONTAL

NOTE: High Static airflow requires installation of High Static Kit (HSKT*), or factory-built High Static model. Unit factory shipped at 2.5 turns open.Tables represent dry coil without filter. To compensate for filter, add 0.08” to measured ESP SCFM correction for wet coil = 4%.

DCG090 HORIZONTAL, HIGH STATIC BELT DRIVE

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.7 3567 903 1.580.9 3596 953 1.79 3145 906 1.391.1 3630 1007 1.97 3168 963 1.56 2675 909 1.181.3 3649 1063 2.19 3255 1021 1.8 2724 965 1.351.5 3316 1068 2 2823 1058 1.611.7 3287 1112 2.16 2869 1074 1.781.9 2970 1122 22.1 2644 1133 1.92

DCG102 HORIZONTAL, HIGH STATIC BELT DRIVE

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP0.7 3417 900 1.55

0.9 3446 950 1.76 2995 903 1.36

1.1 3480 1004 1.94 3018 960 1.53 2525 906 1.151.3 3499 1060 2.16 3105 1018 1.77 2574 962 1.321.5 3166 1065 1.97 2673 1055 1.581.7 3137 1109 2.13 2719 1071 1.751.9 3107 1154 2.28 2820 1119 1.972.1 2790 1164 2.12

DCG120 HORIZONTAL, HIGH STATIC BELT DRIVE

CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP

0.8 4408 885 2.021.0 4464 940 2.29 3929 891 1.761.2 4585 996 2.58 4026 946 2 3436 897 1.461.4 4697 1049 2.92 4141 1001 2.26 3509 951 1.71.6 4264 1056 2.58 3663 1007 1.961.8 4359 1105 2.85 3785 1061 2.222.0 3907 1114 2.49

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

DO NOT OPERATE

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

DO NOT OPERATE

ESP, In H2O

TURNS OPEN0 1 2 3 4 5

DCG150 HORIZONTAL, HIGH STATIC BELT DRIVE

CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP

0.6 5967 3.92 5451 3.16 5275 2.77

0.8 5628 3.61 5223 2.97 4959 2.54

1.0 5840 4.10 5385 3.39 4999 2.80 4635 2.31

1.2 5643 3.90 5003 3.06 4803 2.65 4160 1.99

1.4 6007 4.93 5740 4.32 5229 3.51 4576 2.71 4440 2.38

1.6 5752 4.64 5401 3.97 4917 3.23

1.8 5380 4.24 5033 3.61 4397 2.79

2.0 5065 3.91 4573 3.18

0 1 2 3 4 5

TURNS OPEN ESP, In

H2O

28

APPENDIX A ECONOMIZER PRESSURE DROP

Airflow Pressure Drop of Downflow Economizer for 7.5 to 12.5 Ton Rooftop Units (100% Return Air)SCFM 2000 2500 3000 3500 4000 4500 5000 5500in. WG 0.02 0.04 0.06 0.09 0.13 0.18 0.23 0.29

29

APPENDIX B ELECTRICAL DATA

MIN MAX Qty RLA LRA Qty HP FLA HP FLA HP FLA

208/230-60-3 187 253 2 13.1 83.1 2 1/4 1.40 BD STD STATIC 1.5 5.0 2.0 6.0

460-60-3 414 506 2 6.1 41.0 2 1/4 0.80 BD STD STATIC 1.5 2.5 2.0 2.9

575-60-3 518 633 2 4.4 33 2 1/4 0.55 BD STD STATIC 1.5 2.3 2.0 2.4

208/230-60-3 187 253 2 14.5 98.0 2 1/4 1.40 BD STD STATIC 2.0 7.8 2.0 6.0

460-60-3 414 506 2 6.3 55.0 2 1/4 0.80 BD STD STATIC 2.0 3.9 2.0 2.9

575-60-3 518 633 2 6.0 41.0 2 1/4 0.55 BD STD STATIC 2.0 2.5 2.0 2.4

208/230-60-3 187 253 2 16.0 110.0 2 1/3 2.40 BD STD STATIC 2.0 7.8 2.0 6.4

460-60-3 414 506 2 7.8 52.0 2 1/3 1.20 BD STD STATIC 2.0 3.9 2.0 3.0

575-60-3 518 633 2 6.4 38.9 2 1/3 0.67 BD STD STATIC 2.0 2.5 2.0 2.4

208/230-60-3 187 253 2 22.4 149.0 2 1/3 2.40 BD STD STATIC 3.0 9.4 3.0 9.1

460-60-3 414 506 2 10.6 75.0 2 1/3 1.20 BD STD STATIC 3.0 4.7 3.0 4.3

575-60-3 518 633 2 7.70 54.0 2 1/3 0.67 BD STD STATIC 3.0 4.2 3.0 3.5

7.5 TON

8.5 TON

10 TON

12.5 TON

ELECTRICAL DATA

MODELSVOLTAGE

(NAMEPLATE)

VOLTAGE LIMITATIONS

COMPRESSOR (ea) OD FAN MOTORS (ea) ID MOTOR APPL

ID FAN MOTOR (ea)

2 Speed ID Fan Motor (ea)

30

APPENDIX C UNIT DIMENSIONS

HORIZONTAL DISCHARGE

VERTICAL DISCHARGE (BOTTOM OF UNIT)

RETURN

SUPPLY13 7/8”

28 3/8” 7 3/8”

12 5/8”

6 1/4”

36 3/8”

5 7/8”

RETURN

SUPPLY5 3/8”

7 1/2”

6 1/2”

7.5 8.5 10 12.5

Y 52 7/8" 52 7/8" 52 7/8" 58 7/8"

NOTE

For horizontal discharge, remove the supply and return duct covers and place them over thevertical discharge return and supply openings. Install with insulation facing up, using thelonger screws provided in the literature package.

99 1/8”

61 3/4”

Y

31

APPENDIX D WIRING DIAGRAMS

32

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS DCG (090, 102,120, 150) 2103B* 208-230 / 3 / 60 1SP

BK

CM1

FC1

F C

CM2

PU

FC2

F C

COMP1

T2T3 T1

L3T3

CL2 L1

T2 T1 CC

1

YL

RD

BK

C

TR

24V

COMP 2

T2T3 T1

L3T3

CL2 L1

T2 T1

CC

2

YL

RD

BK

BL

BL

OR

OR

RD

RD

BK

BK

LPS

1

32222222 4

1

2CC

R1 3

2222222 41

2CC

R 2

LPS

2H

PS

2

EM

L3T3

CL2 L1

T2 T1 BC

RD

OR

RD

BK

BK

CO

LOR

CO

DE

BK --

------

------

- BLA

CK

BL

------

------

--- B

LUE

BR --

------

------

- BR

OW

NO

R --

------

------

- OR

AN

GE

PU --

------

------

- PU

RP

LER

D --

------

------

- RE

DW

H --

------

------

WH

ITE

YL

-----

------

----

YE

LLO

WPK

-----

------

----

PIN

KG

R---

------

------

- GR

EEN

GY

------

------

---- G

RE

Y

WIR

ING

CO

DE

FAC

TOR

Y W

IRI N

GH

IGH

VO

LTA

GE

LOW

VO

LTA

GE

OP

TIO

NA

L H

IGH

VO

LTA

GE

OP

TIO

NA

L LO

W V

OLT

AG

EFI

ELD

WIR

ING

HIG

H V

OLT

AG

ELO

W V

OLT

AG

E

S1

S2

RC

GW

1W

2Y

1Y

2O

3 2 1

96

8 745

PU

PK

PK

PU

WH

GR

BL

BL B

LW

HY

L

PU

BR

WH

WH

BL

BL

RD

BL

BK

BK

PU B

RB

KBR

BL

BL

GR

YL

OR

YL

VM

PU

RD

RD

BK

RD

BK

YL

HP

S1

YL

OR

RD

VM

R

3 1 BL

WH

OR

OR

OR

BL

BL

PLF

PK

PK

GV

RS

ALS

BR

PU

IIC

WH

RD

GR

OR

SE

EN

OTE

3

L2

UNUSED COOLHEAT

DIFS

L14 5 6

2 31

ECO

N 11

8

12

97

10

GR

BL

PU

PU

BR

YL YL

PU

RD

RD

WH

BK

BK

BK

YL

YL

YL

GR

GR

LS

PS

RD

RD

RD

FS

YL

PU

BR

IGN

RD

OR

YL

WH

WH

BL

BL

BL

BL

BL

BL

BL

BL

BL

WH

GR

RD R

D

RD

RD

RD

YL

PKYL

YLYL

GR

BL

BR

RD

RD

RD

WH

RD

PO

WE

R S

UP

PLY

208-

240/

3/60

SEE

NO

TE 4

PB

BK BK

RD

OR

YL

YL

GN

D

OR RD

BK

RD

OR

BL

YLR

DB

L

RD

RD

GR

RE

PLA

CE

JU

MP

ER

WIT

HSM

OKE

/FIR

E D

ETE

CTO

RS

EE

NO

TE 5

SE

E N

OTE

2

208240

RD

RD

GR

0140

L030

28-B

GR

BR

PU

++U

SE

N.E

.C. C

LAS

S 2

WIR

ETH

ER

MO

STA

T++

SE

E N

OTE

6

33

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS DCG (090, 102, 120, 150) 2103B* 208-230 / 3 / 60 1SP

208-240/3/60 0140L02572-A

VM

208-240/3/60SUPPLY VOLTAGE

CC1

L2

T3

COMP1 T2

FCM1

L1

CC1T1

C

CC1

T3

L3T2

FC2

CC2

T3

COMP2

T2

FCM2

CC2T1

C

CC2

T3

T2

SEE UNIT RATING PLATE FOR TYPE AND SIZE

COMPONENT LEGEND

OF OVER CURRENT PROTECTION

ALSBCBRCBCCCCRCMCOMPEMFFCFSGNDGVHPSIBRIICIGNLPSLSPLFPSRSTB1TRVMVMR

OPTIONAL HIGHVOLTAGE

HIGH VOLTAGE

FIELD WIRING

OR ORANGE

YL YELLOW

PU PURPLE

GR GREEN

PK PINK

RD REDWH WHITE

LOW VOLTAGE

BK BLACKWIRE CODE

BR BROWNBL BLUE

LINE VOLTAGE

FACTORY WIRING

LOW VOLTAGE

AUXILLARY LIMIT SWITCHBLOWER CONTACTORBLOWER RELAYCIRCUIT BREAKERCOMPRESSOR CONTACTORCOMPRESSOR CONTACTOR RELAYCONDENSER MOTORCOMPRESSOREVAPORATOR MOTORFUSEFAN CAPACITORFLAME SENSOREQUIPMENT GROUNDGAS VALVEHIGH PRESSURE SWITCHINDOOR BLOWER RELAYINTEGRATED IGNITION CONTROLIGNITORLOW PRESSURE SWITCHLIMIT SWITCHFEMALE PLUG/CONNECTORPRESSURE SWITCHROLLOUT SWITCHTERMINAL BLOCK (24V SIGNAL)TRANSFORMERVENT MOTORVENT MOTOR RELAY

3. L1 AND L2 ON IIC CONTROL IS 24V INPUT.

4. USE COPPER CONDUCTORS ONLY.++ USE NEC CLASS 2 WIRE.

5. FOR TWO STAGE OPERATION REMOVEW1 TO W2 JUMPER WIRE

2. ACCESSORY ECONOMIZER PLUG ADJACENTTO BLOWER HOUSING IN RETURN AIRCOMPARTMENT. REMOVE MALE PLUG ANDATTACH FEMALE PLUG TO THE ECONOMIZERACCESSORY.

1. REPLACEMENT WIRE MUST BE THE SAMESIZE AND TYPE OF INSULATION AS ORIGINAL.(USE COPPER CONDUCTOR ONLY).

NOTES

YL /PK YELLOW WITHPINK STRIP

BL /PK BLUE WITHPINK STRIP4 2

VMR

RD

W1

STAT

Y1

Y2

WH

C

G

YL

Y2

2 STAGE COOLING

R

C

G

R

W1

TB1

PK

GR

Y1

BL

W2BRW2

24V

TB1

VMR

FSIGN

NOTE 3L2

RSGV

PLF

NOTE 2

LS

H C

D1

FSF

5

4

L1 NOTE 3

ALS

ECON

3

6

9

IIC

7

CCR2

321

9 687 4

5

INSTALLER/SERVICEMAN

THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TOTROUBLESHOOTING THIS APPLIANCE. STATUS LIGHT CODES ARE AS FOLLOWS:

FALSE FLAME SENSED

OPEN LIMIT SWITCH

WITHOUT INDUCER ONPRESSURE SWITCH CLOSED

PRESSURE SWITCHOPEN

NORMAL OPERATION

3 BLINKS

6 BLINKS

4 BLINKS

5 BLINKSCOMPRESSOROUTPUT DELAY

OFF

ON

1 BLINK

2 BLINKS

STATUS LIGHT

OPEN AUX. LIMITSWITCH

IGNITION FAILURE

OPEN ROLLOUTSWITCH

NO POWER ORINTERNAL CONTROL

EQUIPMENT STATUS

CHECKPRESSURE SWITCH

MAIN LIMIT OPENBAD SWITCH

STICKING GAS VALVE3 MIN. COMP.

ANTI-CYCLE TIMER

CHECKPRESSURE SWITCH

GAS PRESSURE

FLAME ROLLOUT

AUX. LIMIT OPEN

FLAME SENSOR

BAD SWITCH

GAS VALVE

GAS FLOW

CHECK INPUT POWERCHECK FUSE ON CONTROL

REPLACE CONTROL

------

CHECK

TR

1

2

6. MOVE WIRE(S) TO APPROPRIATE INPUTVOLTAGE TERMINAL ON TRANSFORMER.

T1

FC1

LPS1HPS14 2 CC1

4 2 CC2CCR2

CCR1

EM

HC

11

CCR11210

BR2

BC

BC

HPS2 LPS2

BC

SEE NOTE 6

8PS

C

THERMOSTATFIELD WIRINGTHERMOSTATFIELD WIRING

TO THERMOSTAT

BC

++ NOTE 5

RO G CY1W1W2S2S1 RO G CY1W1W2 Y2S2S1

34

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS DCG (090, 102, 120, 150) 2104B*/ 7B* 460, 575 / 3 / 60 1SP

0140

L030

29-B

BK

CM1

FC1

F C

CM2

PU

FC2

F C

COMP1

T2T3 T1

L3T3

CL2 L1

T2 T1 CC

1

YL

RD

BK

C

TR

24V

COMP 2

T2T3 T1

L3T3

CL2 L1

T2 T1

CC

2

YL

RD

BK

BL

BL

OR

RD

BK

BK

EM

L3T3

CL2 L1

T2 T1 BC

RD

OR

RD B

K

BK

CO

L OR

CO

DE

BK

-----

------

---- B

LAC

KB

L ---

------

------

BLU

EB

R --

------

------

- BR

OW

NO

R --

------

------

- OR

ANG

EP

U --

------

------

- PU

RP

LER

D --

------

------

- RE

DW

H --

------

------

WH

ITE

YL

-----

------

----

YE

LLO

WP

K --

------

------

- P

INK

GR

------

------

---- G

RE

ENG

Y---

------

------

- GR

EY

WIR

ING

CO

D EFA

CTO

RY

WIR

ING

HIG

H V

OLT

AG

ELO

W V

OLT

AG

EO

PTI

ON

AL

HIG

H V

OLT

AG

EO

PTI

ON

AL

LOW

VO

LTA

GE

FIE

LD W

IRIN

GH

IGH

VO

LTA

GE

LOW

VO

LTA

GE

S1

S2

RC

GW

1W

2Y

1Y

2O

3 2 1

96

8 745

PU

PK

PK

WH

GR

BL

BL B

LW

HY

L

BR

WH

WH

BL

BL

RD B

K

BK

PU B

RB

KBR

BL

BL

GR

YL

OR

VM

PU

RD

RD

BK

OR

VM

R

3 1

BLW

H

PLF

PK

PK

GV

RS

ALS

BR

PU

IIC

WH

RD

GR

OR

SEE NO

TE 3

L2

UNUSED COOLHEAT

DIFS

L14 5 6

2 31

ECO

N 11

8

12

97

10G

R

BL

PU

PU

BR

YL YL

PU

RD

WH

BK

BK

BK

YL

YL

YL

GR

GR

LS

PS

RD

RD

RD

FS

YL

PU

BR

IGN

RD OR

WH

WH

BL

BL

BL

BL

BL

BL

BL

BL

WH

GR

GR

RD R

D

RD

RD

RD

YL

PKYL

YLYL

BR

RD

RD

WH

RD

RD

RD

GR

RE

PLA

CE

JU

MP

ER

WIT

HSM

OKE

/FIR

E D

ETE

CTO

RS

EE

NO

TE 5

SE

E N

OTE

2

460OR APPROPRIATEINPUT VOLTAGE

240

RD

SE

E N

OTE

6B

KB

K

BK

OR

OR

46O ORAPPROPRIATE

INPUTVOLTAGE

RD

RD

BK

LPS

1

32222222 4

1

2CC

R1 3

2222222 41

2CC

R 2

LPS

2H

PS

2

YL

HP

S1

YL

BL

BL

PB

BK BK

RD

OR

YL

YL

GN

D

OR RD

BK

RD

OR

BL

YLR

DB

L

PO

WE

R S

UP

PLY

460-

575/

3/60

SEE

NO

TE 4

BL

OR B

K

RD

RD

GR

PU

YL

PU

THE

RM

OS

TAT+

+++

US

E N

.E.C

. CLA

SS

2 W

IRE

35

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS DCG (090, 102, 120, 150) 2104B*/ 7B* 460, 575 / 3 / 60 1SP

460-575/3/60 0140L02570-A

460-575/3/60SUPPLY VOLTAGE

CC1

L2

T3

COMP1 T2

FCM1

L1

CC1T1

C

CC1

T3

L3T2

SEE UNIT RATING PLATE FOR TYPE AND SIZE

COMPONENT LEGEND

OF OVER CURRENT PROTECTION

ALSBCBRCBCCCCRCMCOMPEMFFCFSGNDGVHPSIBRIICIGNLPSLSPLFPSRSTB1TRVMVMR

OPTIONAL HIGHVOLTAGE

HIGH VOLTAGE

FIELD WIRING

OR ORANGE

YL YELLOW

PU PURPLE

GR GREEN

PK PINK

RD REDWH WHITE

LOW VOLTAGE

BK BLACKWIRE CODE

BR BROWNBL BLUE

LINE VOLTAGE

FACTORY WIRING

LOW VOLTAGE

AUXILLARY LIMIT SWITCHBLOWER CONTACTORBLOWER RELAYCIRCUIT BREAKERCOMPRESSOR CONTACTORCOMPRESSOR CONTACTOR RELAYCONDENSER MOTORCOMPRESSOREVAPORATOR MOTORFUSEFAN CAPACITORFLAME SENSOREQUIPMENT GROUNDGAS VALVEHIGH PRESSURE SWITCHINDOOR BLOWER RELAYINTEGRATED IGNITION CONTROLIGNITORLOW PRESSURE SWITCHLIMIT SWITCHFEMALE PLUG/CONNECTORPRESSURE SWITCHROLLOUT SWITCHTERMINAL BLOCK (24V SIGNAL)TRANSFORMERVENT MOTORVENT MOTOR RELAY

3. L1 AND L2 ON IIC CONTROL IS 24V INPUT.

4. USE COPPER CONDUCTORS ONLY.++ USE NEC CLASS 2 WIRE.

5. FOR TWO STAGE OPERATION REMOVEW1 TO W2 JUMPER WIRE

2. ACCESSORY ECONOMIZER PLUG ADJACENTTO BLOWER HOUSING IN RETURN AIRCOMPARTMENT. REMOVE MALE PLUG ANDATTACH FEMALE PLUG TO THE ECONOMIZERACCESSORY.

1. REPLACEMENT WIRE MUST BE THE SAMESIZE AND TYPE OF INSULATION AS ORIGINAL.(USE COPPER CONDUCTOR ONLY).

NOTES

YL /PK YELLOW WITHPINK STRIP

BL /PK BLUE WITHPINK STRIP

RD

W1

STAT

Y1

Y2

WH

C

G

YL

Y2

2 STAGE COOLING

R

C

G

R

W1

TB1

PK

GR

Y1

BL

W2BRW2

24V

VMR

FSIGN

NOTE 3L2

RSGV

PLF

NOTE 2

LS

H C

D1

FSF

5

4

L1 NOTE 3

ALS

EC ON

3

6

9

IIC

7

CCR2

321

9 6

87 4

5

INSTALLER/SERVICEMAN

THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TOTROUBLESHOOTING THIS APPLIANCE. STATUS LIGHT CODES ARE AS FOLLOWS:

FALSE FLAME SENSED

OPEN LIMIT SWITCH

WITHOUT INDUCER ONPRESSURE SWITCH CLOSED

PRESSURE SWITCHOPEN

NORMAL OPERATION

3 BLINKS

6 BLINKS

4 BLINKS

5 BLINKSCOMPRESSOROUTPUT DELAY

OFF

ON

1 BLINK

2 BLINKS

STATUS LIGHT

OPEN AUX. LIMITSWITCH

IGNITION FAILURE

OPEN ROLLOUTSWITCH

NO POWER ORINTERNAL CONTROL

EQUIPMENT STATUS

CHECKPRESSURE SWITCH

MAIN LIMIT OPENBAD SWITCH

STICKING GAS VALVE

3 MIN. COMP.ANTI-CYCLE TIMER

CHECKPRESSURE SWITCH

GAS PRESSURE

FLAME ROLLOUT

AUX. LIMIT OPEN

FLAME SENSOR

BAD SWITCH

GAS VALVE

GAS FLOW

CHECK IN PUT P OWERCHECK FUSE ON CONTROL

REPLACE CONTROL

------

CHECK

TR

1

2

6. MOVE WIRE(S) TO APPROPRIATE INPUTVOLTAGE TERMINAL ON TRANSFORMER.

FC1

LPS1 HPS14 2 CC1

4 2 CC2CCR2

CCR1

HC

11

CCR11210

BR2

HPS2 LPS2

SEE NOTE 6

8PS

C

THERMOSTATFIELD WIRINGTHERMOSTATFIELD WIRING

TO THE RMOSTAT

BCBC

BC

EM

T1 T2

T3

CC2

C

T1 CC2

CM2F

T2

COMP2

T3

CC2

FC2

460V ORAPPROPRIATE

INPUTVOLTAGE

VMR

24

C

VM

++ NOTE 5

TB1

RO G CY1W1W2S2S1 RO G CY1W1W2 Y2S2S1

BC

36

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS DCG (090, 102) 2103V* 208-230 / 3 / 60 2SP

0140

L037

58-A

BK

CM1

FC1

F C

CM2

PU

FC2

F C

COMP1

T2T3 T1

L3T3

CL2 L1

T2 T1 CC

1

YL

RD

BK

C

TR

24V

COMP 2

T2T3 T1

L3T3

CL2 L1

T2 T1

CC

2

YL

RD

BK

BL

BL

OR

OR

RD

RD

BK

BK

LPS

1

322 22222 4

1

2CC

R1 3

22 22222 41

2CC

R 2

LPS

2H

PS

2

HIG

HE

MLO

W

L3T3

CL2 L1

T2 T1 BC

1

L3T3

CL2 L1

T2 T1

BC

2

RD

OR

RD

BK

BK

RD

BK

GR

COLO

RC

ODE

BK

----

----

----

--- B

LAC

KB

L --

----

----

----

- BLU

EB

R --

----

----

-----

BR

OW

NO

R --

----

----

-----

OR

AN

GE

PU

----

----

-----

-- P

UR

PLE

RD

----

-----

----

-- R

EDW

H --

----

----

----

WH

ITE

YL --

----

----

----

- Y

ELLO

WP

K --

----

----

----

- P

INK

GR

----

----

-----

--- G

RE

EN

GY

----

----

----

----

GR

EY

WIR

ING

CO

DEFA

CT O

RY

WIR

ING

HIG

H V

OLT

AG

ELO

W V

OLT

AGE

OP

TIO

NA

L H

IGH

VO

LTA

GE

F IEL

DW

IRIN

GH

IGH

VO

LTA

GE

S1

S2

RC

GW

1W

2Y

1Y

2O

3 2 1

96

8 745

PU

PK

PK

PU

WH

YL

WH

GR

BL

BL B

LW

HY

L

PU

YL

BR

WH

WH

BL

BL

RD

BL

BK

BK

PU B

RBKB

R

BL

BL

BL

BL

BL

GR

YL Y

L

BL

OR

YL

VM

PU

OR

RD

RD

BK

RD

BK

RD

YL

HP

S1

YL

OR BK

RD

VM

R

3 1 BLB

L

WH

OR

OR

OR

BL

BL

PLF

PU

PK

PK

WH

GV

RS

ALS

BR

PU

IIC

WH

RD

GR

OR

SE

EN

OTE

3

L2

UNUSED COOLHEAT

DIFS

L14 5 6

2 31

ECO

N 11

8

12

97

10G

R

BL

PU

PU

BR

YL YL

PU

RD

RD

WH

BLB

K

BK

BK

YL

YL

YL

GR

GR

LS

PS

RD

RD

RD

FS

YL

PU

BR

IGN

RD

OR

YL

WH

WH

BL

BL

BL

BL

BL

BL

BL

BL

BL

WH

GR

PU

RD R

D

RD

RD

RD

YL

PKYL

YLYL

GR

BL

GY

BL

YL

BR

RD

RD

RD

WH

RD

PO

WE

R S

UP

PLY

208-

240/

3/60

SE

E N

OTE

4

PB

BK BK

RD

OR

YL

YL

GN

D

OR RD

BKRD

OR

BL

YLR

DBL

RD

RD

GR

GR

BR

1

BR

2

53

21

4N

C

NO

GR

53

21

4N

C

NO

YL

BL

GY

YL

BKOR

REPLACE JUMPER WITH

SMOKE/FIRE DETECTOR

SEE NOTE 5

SEE NOTE 2

SEE NOTE 6

208240

BLW

HOR

BK B

KB

K

RD

RD

WH

WH

GR

37

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

DCG (090, 102) 2103V* 208-230 / 3 / 60 2SPWIRING DIAGRAMS

208-240/3/60 0140L03759-A

VM

208-240/3/60SUPPLY VOLTAGE

CC1

L2

T3

COMP1 T2

FCM1

L1

CC1T1

C

CC1

T3

L3T2

FC2

CC2

T3

COMP2

T2

FCM2

CC2T1

C

CC2

T3

T2

SEE UNIT RATING PLATE FOR TYPE AND SIZE

COMPONENT LEGEND

OF OVER CURRENT PROTECTION

ALSBCBRCBCCCCRCMCOMPEMFFCFSGNDGVHPSIBRIICIGNLPSLSPLFPSRSTB1TRVMVMR

OPTIONAL HIGHVOLTAGE

HIGH VOLTAGE

FIELD WIRING

OR ORANGE

YL YELLOW

PU PURPLE

GR GREEN

PK PINK

RD REDWH WHITE

LOW VOLTAGE

BK BLACKWIRE CODE

BR BROWNBL BLUE

LINE VOLTAGE

FACTORY WIRING

LOW VOLTAGE

AUXILLARY LIMIT SWITCHBLOWER CONTACTORBLOWER RELAYCIRCUIT BREAKERCOMPRESSOR CONTACTORCOMPRESSOR CONTACTOR RELAYCONDENSER MOTORCOMPRESSOREVAPORATOR MOTORFUSEFAN CAPACITORFLAME SENSOREQUIPMENT GROUNDGAS VALVEHIGH PRESSURE SWITCHINDOOR BLOWER RELAYINTEGRATED IGNITION CONTROLIGNITORLOW PRESSURE SWITCHLIMIT SWITCHFEMALE PLUG/CONNECTORPRESSURE SWITCHROLLOUT SWITCHTERMINAL BLOCK (24V SIGNAL)TRANSFORMERVENT MOTORVENT MOTOR RELAY

3. L1 AND L2 ON IIC CONTROL IS 24V INPUT.

4. USE COPPER CONDUCTORS ONLY.++ USE NEC CLASS 2 WIRE.

5. FOR TWO STAGE OPERATION REMOVEW1 TO W2 JUMPER WIRE

2. ACCESSORY ECONOMIZER PLUG ADJACENTTO BLOWER HOUSING IN RETURN AIRCOMPARTMENT. REMOVE MALE PLUG ANDATTACH FEMALE PLUG TO THE ECONOMIZERACCESSORY.

1. REPLACEMENT WIRE MUST BE THE SAMESIZE AND TYPE OF INSULATION AS ORIGINAL.(USE COPPER CONDUCTOR ONLY).

N OTES

YL /PK YELLOW WITHPINK STRIP

BL /PK BLUE WITHPINK STRIP4 2

VMR

RD

W1

STAT

Y1

Y2

WH

C

G

YL

Y2

2 STAGE COOLING

R

C

G

R

W1

TB1

PK

GR

Y1

BL

W2BRW2

24V

TB1

BC1IIC

VMR

FSIGN

NOTE 3L2

RSGV

PLF

NOTE 2

LS

H C

D1

FSF

5

4

L1 NOTE 3

ALS

ECON

3

6

9

IIC

7

CCR2

321

9 687 4

5

INSTALLER/SERVICEMAN

THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TOTROUBLESHOOTING THIS APPLIANCE. STATUS LIGHT CODES ARE AS FOLLOWS:

FALSE FLAME SENSED

OPEN LIMIT SWITCH

WITHOUT INDUCER ONPRESSURE SWITCH CLOSED

PRESSURE SWITCHOPEN

NORMAL OPERATION

3 BLINKS

6 BLINKS

4 BLINKS

5 BLINKSCOMPRESSOROUTPUT DELAY

OFF

ON

1 BLINK

2 BLINKS

STATUS LIGHT

OPEN AUX. LIMITSWITCH

IGNITION FAILURE

OPEN ROLLOUTSWITCH

NO POWER ORINTERNAL CONTROL

EQUIPMENT STATUS

CHECKPRESSURE SWITCH

MAIN LIMIT OPENBAD SWITCH

STICKING GAS VALVE3 MIN. COMP.

ANTI-CYCLE TIMER

CHECKPRESSURE SWITCH

GAS PRESSURE

FLAME ROLLOUT

AUX. LIMIT OPEN

FLAME SENSOR

BAD SWITCH

GAS VALVE

GAS FLOW

CHECK INPUT POWERCHECK FUSE ON CONTROL

REPLACE CONTROL

------

CHECK

TR

1

2

6. MOVE WIRE(S) TO APPROPRIATE INPUTVOLTAGE TERMINAL ON TRANSFORMER.

T1

FC1

LPS1 HPS14 2 CC1

4 2 CC2CCR2

CCR1

EM

HIGH SPEED

LOW SPEED

HC

BC2

2

5

4BR1

11

CCR11210

BR1

BR2

2

5

4BR2

BC2

BC1

BC1

BC2

HPS2 LPS2

BC2

BC1

SEE NOTE 6

8PS

C

THERMOSTATFIELD WIRINGTHERMOSTATFIELD WIRING

TO THERMOSTAT ++ NOTE 5

TB1

++

RO G CY1W1W2S2S1 RO G CY1W1W2 Y2S2S1

38

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

DCG (090, 102) 2104V*/ 7V* 460, 575 / 3 / 60 2SPWIRING DIAGRAMS

0140

L037

60-B

BK

CM1

FC1

F C

CM2

PU

FC2

F C

COMP1

T2T3 T1

L3T3

CL2 L1

T2 T1 CC

1

YL

RD

BK

C

TR

24V

COMP 2

T2T3 T1

L3T3

CL2 L1

T2 T1

CC

2

YL

RD

BK

BL

BL

OR

OR

RD

BK

BK

LPS1

322 22222 4

1

2CC

R1 3

22 22222 41

2CC

R 2

LPS

2H

PS

2

HIG

HE

MLO

W

L3T3

CL2 L1

T2 T1 BC

1

L3T3

CL2 L1

T2 T1

BC

2

RD

OR

RD

BK

BK R

D

BK

GR

COL O

RC

ODE

BK

----

----

----

--- B

LAC

KB

L --

----

----

----

- BLU

EB

R --

----

----

-----

BR

OW

NO

R --

----

----

----

- OR

ANG

EP

U --

----

----

-----

PU

RP

LER

D --

-----

----

----

RED

WH

----

----

----

-- W

HIT

EYL

----

----

----

---

YEL

LOW

PK

----

----

----

---

PIN

KG

R--

----

-----

----

- GR

EE

NG

Y--

----

----

----

-- G

RE

Y

WIR

ING

CO

DEFA

CTO

RY

WIR

ING

HIG

H V

OLT

AG

ELO

W V

OLT

AG

EO

PTIO

NA

L H

IGH

VO

LTAG

EF I

ELD

WIR

ING

HIG

H V

OLT

AG

E

S1

S2

RC

GW

1W

2Y

1Y

2O

3 2 1

96

8 745

PU

PK

PK

PU

WH

YL

WH

GR

BL

BLB

LW

HY

L

PU

YL

BR

WH

WH

BL

BL

RD

BL

BK

BK

PU B

RB

KBR

BL

BL

BL

BL

BL

GR

YL Y

L

BL

OR

YL

VM

PU

OR

RD

BK

RD

BK

RD

YL

HP

S1

YL

OR B

K

VM

R

3 1

BL

BL

WH

RD

RD

BL

BL

PLF

PU

PK

PK

GV

RS

ALS

BR

PU

IIC

WH

RD

GR

OR

SE

EN

OTE

3

L2

UNUSED COOLHEAT

DIFS

L14 5 6

2 31

ECO

N 11

8

12

97

10G

R

BL

PU

PU

BR

YL YL

PU

RD

RD

WH

BLBK

BK

BK

YL

YL

YL

GR

GR

LS

PS

RD

RD

RD

FS

YL

PU

BR

IGN

RD

OR

YL

WH

WH

BL

BL

BL

BL

BL

BL

BL

BL

BL

WH

GR

PU

RD R

D

RD

RD

RD

YL

PKYL

YLYL

GR

BL

GY

BL

YL

BR

RD

RD

RD

WH

RD

PB

BK BKRD

OR

YL

YL

GN

D

OR RD

BK

RD

OR

BL

YLR

DBL

RD

RD

GR

GR

BR

1

BR

2

53

21

4N

C

NO

GR

53

21

4N

C

NO

YL

BL

GY

YL

BKOR

REPLACE JUMPER WITH

SMOKE/FIRE DETECTOR

SEE NOTE 5

SEE NOTE 2

BLW

HOR

BK B

KB

K

460OR APPROPRIATEINPUT VOLTAGE

240

RD

SEE NOTE 6

RD

BK

BK

OR

OR

PO

WE

R S

UP

PLY

460-

575/

3/60

SE

E N

OTE

4

46O ORAPPROPRIATE

INPUTVOLTAGE

RD

RD

WH

WH

WH

GR

39

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

WIRING DIAGRAMS DCG (090, 102) 2104V* 7V* 460, 575 / 3 / 60 2SP

460-575/3/60 0140L03761-B

460-575/3/60SUPPLY VOLTAGE

CC1

L2

T3

COMP1 T2

FCM1

L1

CC1T1

C

CC1

T3

L3T2

SEE UNIT RATING PLATE FOR TYPE AND SIZE

COMPONENT LEGEND

OF OVER CURRENT PROTECTION

ALSBCBRCBCCCCRCMCOMPEMFFCFSGNDGVHPSIBRIICIGNLPSLSPLFPSRSTB1TRVMVMR

OPTIONAL HIGHVOLTAGE

HIGH VOLTAGE

FIELD WIRING

OR ORANGE

YL YELLOW

PU PURPLE

GR GREEN

PK PINK

RD REDWH WHITE

LOW VOLTAGE

BK BLACKWIRE CODE

BR BROWNBL BLUE

LINE VOLTAGE

FACTORY WIRING

LOW VOLTAGE

AUXILLARY LIMIT SWITCHBLOWER CONTACTORBLOWER RELAYCIRCUIT BREAKERCOMPRESSOR CONTACTORCOMPRESSOR CONTACTOR RELAYCONDENSER MOTORCOMPRESSOREVAPORATOR MOTORFUSEFAN CAPACITORFLAME SENSOREQUIPMENT GROUNDGAS VALVEHIGH PRESSURE SWITCHINDOOR BLOWER RELAYINTEGRATED IGNITION CONTROLIGNITORLOW PRESSURE SWITCHLIMIT SWITCHFEMALE PLUG/CONNECTORPRESSURE SWITCHROLLOUT SWITCHTERMINAL BLOCK (24V SIGNAL)TRANSFORMERVENT MOTORVENT MOTOR RELAY

3. L1 AND L2 ON IIC CONTROL IS 24V INPUT.

4. USE COPPER CONDUCTORS ONLY.++ USE NEC CLASS 2 WIRE.

5. FOR TWO STAGE OPERATION REMOVEW1 TO W2 JUMPER WIRE

2. ACCESSORY ECONOMIZER PLUG ADJACENTTO BLOWER HOUSING IN RETURN AIRCOMPARTMENT. REMOVE MALE PLUG ANDATTACH FEMALE PLUG TO THE ECONOMIZERACCESSORY.

1. REPLACEMENT WIRE MUST BE THE SAMESIZE AND TYPE OF INSULATION AS ORIGINAL.(USE COPPER CONDUCTOR ONLY).

NOTES

YL /PK YELLOW WITHPINK STRIP

BL /PK BLUE WITHPINK STRIP

RD

W1

STAT

Y1

Y2

WH

C

G

YL

Y2

2 STAGE COOLING

R

C

G

R

W1

TB1

PK

GR

Y1

BL

W2BRW2NOTE 5

24V

TB1

BC1IIC

VMR

FSIGN

NOTE 3L2

RSGV

PLF

NOTE 2

LS

H C

D1

FSF

5

4

L1 NOTE 3

ALS

ECON

3

6

9

IIC

7

CCR2

321

9 687 4

5

INSTALLER/SERVICEMAN

THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TOTROUBLESHOOTING THIS APPLIANCE. STATUS LIGHT CODES ARE AS FOLLOWS:

FALSE FLAME SENSED

OPEN LIMIT SWITCH

WITHOUT INDUCER ONPRESSURE SWITCH CLOSED

PRESSURE SWITCHOPEN

NORMAL OPERATION

3 BLINKS

6 BLINKS

4 BLINKS

5 BLINKSCOMPRESSOROUTPUT DELAY

OFF

ON

1 BLINK

2 BLINKS

STATUS LIGHT

OPEN AUX. LIMITSWITCH

IGNITION FAILURE

OPEN ROLLOUTSWITCH

NO POWER ORINTERNAL CONTROL

EQUIPMENT STATUS

CHECKPRESSURE SWITCH

MAIN LIMIT OPENBAD SWITCH

STICKING GAS VALVE3 MIN. COMP.

ANTI-CYCLE TIMER

CHECKPRESSURE SWITCH

GAS PRESSURE

FLAME ROLLOUT

AUX. LIMIT OPEN

FLAME SENSOR

BAD SWITCH

GAS VALVE

GAS FLOW

CHECK INPUT POWERCHECK FUSE ON CONTROL

REPLACE CONTROL

------

CHECK

TR

1

2

6. MOVE WIRE(S) TO APPROPRIATE INPUTVOLTAGE TERMINAL ON TRANSFORMER.

FC1

LPS1 HPS14 2 CC1

4 2 CC2CCR2

CCR1

HC

BC2

2

5

4BR1

11

CCR11210

BR1

BR2

2

5

4BR2

HPS2 LPS2

SEE NOTE 6

8PS

C

THERMOSTATFIELD WIRINGTHERMOSTATFIELD WIRING

TO THERMOSTAT ++

BC1

BC2

BC2

BC1

BC1

BC2LOW SPEED

HIGH SPEED

EM

T1 T2

T3

CC2

C

T1 CC2

CM2F

T2

COMP2

T3

CC2

FC2

460V ORAPPROPRIATE

INPUTVOLTAGE

VMR

24

C

VM

RO G CY1W1W2 Y2S2S1 RO G CY1W1W2S2S1

40

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS DCG(120, 150)2103V* 208-230 / 3 / 60 2 SP

0140

L037

62-A

BK

CM1

FC1

F C

CM2

PU

FC2

F C

COMP1

T2T3 T1

L3T3

CL2 L1

T2 T1 CC

1

YL

RD

BK

C

TR

24V

COMP 2

T2T3 T1

L3T3

CL2 L1

T2 T1

CC

2

YL

RD

BK

BL

BL

OR

OR

RD

RD

BK

BK

LPS

1

32222222 4

1

2CC

R1 3

2222222 41

2CC

R 2

LPS

2H

PS

2

HIG

HE

MLO

W

T1

L3

T2

L1

T3

L2

CB

1H

IGH

SP

EE

D

T1

L3

T2

L1

T3

L2

CB2

LOW

SPE

ED

L3T3

CL2 L1

T2 T1 BC

1

L3T3

CL2 L1

T2 T1

BC

2

RD

OR

RD

BK

BK R

D

BK

GR

CO

LOR

CO

DE

BK

----

-----

----

-- B

LAC

KB

L --

-----

----

----

BLU

EB

R --

----

----

-----

BR

OW

NO

R --

-----

----

----

OR

AN

GE

PU

----

----

-----

-- P

UR

PLE

RD

----

-----

----

-- R

ED

WH

----

-----

----

- WH

ITE

YL --

-----

----

----

YE

LLO

WP

K --

-----

----

----

PIN

KG

R--

-----

----

-----

GR

EE

NG

Y---

----

-----

----

GR

EY

WIR

ING

CO

D EFA

CT O

RY

WIR

ING

HIG

H V

OLT

AG

ELO

W V

OLT

AG

EO

PTI

ON

AL H

IGH

VO

LTA

GE

FIE

LD W

IRIN

GH

IGH

VO

LTA

GE

S1

S2

RC

GW

1W

2Y

1Y

2O

3 2 1

96

8 745

PU

PK

PK

PU

WH

YL

WH

GR

BL

BL B

LW

HY

L

PU

YL

BR

WH

WH

BL

BL

RD

BL

BK

BK

PU B

RBKB

R

BL

BL

BL

BL

BL

GR

YL Y

L

BL

OR

YL

VM

PU

OR

RD

RD

BK

RD

BKR

D

YL

HPS

1

YL

OR BK

RD

VM

R

3 1 BL

BL

WH

OR

OR

OR

BL

BL

PLF

PU

PK

PK

WH

GV

RS

ALS

BR

PU

IIC

WH

RD

GR

OR

SEE

NO

TE 3

L2

UNUSED COOLHEAT

DIFS

L14 5 6

2 31

ECO

N 11

8

12

97

10G

R

BL

PU

PU

BR

YL YL

PU

RD

RD

WH

BLB

K

BK

BK

YL

YL

YL

GR

GR

LS

PS

RD

RD

RD

FS

YL

PU

BR

IGN

RD

OR

YL

WH

WH

BL

BL

BL

BL

BL

BL

BL

BL

BL

WH

GR

PU

RD R

D

RD

RD

RD

YL

PKYL

YLYL

GR

BL

GY

BL

YL

BR

RD

RD

RD

WH

RD

POW

ER

SU

PPLY

208-

240/

3/60

SEE

NO

TE 4

PB

BK BK

RD

OR

YL

YL

GN

D

OR RD

BK

RD

OR

BL

YLR

DB

L

RD

RD

GR

GR

BR

1

BR

2

53

21

4N

C

NO

GR

53

21

4N

C

NO

YL

BL

GY

YL

BK

OR

REPLACE JUMPER WITH

SMOKE/FIRE DETECTOR

SEE NOTE 5

SEE NOTE 2

SEE NOTE 6

208240

BKB

KBK

YL Y

LY

L

RD

RD

WH

WH

GR

41

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS

208-240/3/60 0140L03763-A

VM

208-240/3/60SUPPLY VOLTAGE

CC1

L2

T3

COMP1 T2

FCM1

L1

CC1T1

C

CC1

T3

L3T2

FC2

CC2

T3

COMP2

T2

FCM2

CC2T1

C

CC2

T3

T2

SEE UNIT RATING PLATE FOR TYPE AND SIZE

COMPONENT LEGEND

OF OVER CURRENT PROTECTION

ALSBCBRCBCCCCRCMCOMPEMFFCFSGNDGVHPSIBRIICIGNLPSLSPLFPSRSTB1TRVMVMR

OPTIONAL HIGHVOLTAGE

HIGH VOLTAGE

FIELD WIRING

OR ORANGE

YL YELLOW

PU PURPLE

GR GREEN

PK PINK

RD REDWH WHITE

LOW VOLTAGE

BK BLACKWIRE CODE

BR BROWNBL BLUE

LINE VOLTAGE

FACTORY WIRING

LOW VOLTAGE

AUXILLARY LIMIT SWITCHBLOWER CONTACTORBLOWER RELAYCIRCUIT BREAKERCOMPRESSOR CONTACTORCOMPRESSOR CONTACTOR RELAYCONDENSER MOTORCOMPRESSOREVAPORATOR MOTORFUSEFAN CAPACITORFLAME SENSOREQUIPMENT GROUNDGAS VALVEHIGH PRESSURE SWITCHINDOOR BLOWER RELAYINTEGRATED IGNITION CONTROLIGNITORLOW PRESSURE SWITCHLIMIT SWITCHFEMALE PLUG/CONNECTORPRESSURE SWITCHROLLOUT SWITCHTERMINAL BLOCK (24V SIGNAL)TRANSFORMERVENT MOTORVENT MOTOR RELAY

3. L1 AND L2 ON IIC CONTROL IS 24V INPUT.

4. USE COPPER CONDUCTORS ONLY.++ USE NEC CLASS 2 WIRE.

5. FOR TWO STAGE OPERATION REMOVEW1 TO W2 JUMPER WIRE

2. ACCESSORY ECONOMIZER PLUG ADJACENTTO BLOWER HOUSING IN RETURN AIRCOMPARTMENT. REMOVE MALE PLUG ANDATTACH FEMALE PLUG TO THE ECONOMIZERACCESSORY.

1. REPLACEMENT WIRE MUST BE THE SAMESIZE AND TYPE OF INSULATION AS ORIGINAL.(USE COPPER CONDUCTOR ONLY).

NOTES

YL /PK YELLOW WITHPINK STRIP

BL /PK BLUE WITHPINK STRIP4 2

VMR

RD

W1

STAT

Y1

Y2

WH

C

G

YL

Y2

2 STAGE COOLING

R

C

G

R

W1

TB1

PK

GR

Y1

BL

W2BRW2

24V

TB1

BC1IIC

VMR

FSIGN

NOTE 3L2

RSGV

PLF

NOTE 2

LS

H C

D1

FSF

5

4

L1 NOTE 3

ALS

ECON

3

6

9

IIC

7

CCR2

321

9 687 4

5

INSTALLER/SERVICEMAN

THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TOTROUBLESHOOTING THIS APPLIANCE. STATUS LIGHT CODES ARE AS FOLLOWS:

FALSE FLAME SENSED

OPEN LIMIT SWITCH

WITHOUT INDUCER ONPRESSURE SWITCH CLOSED

PRESSURE SWITCHOPEN

NORMAL OPERATION

3 BLINKS

6 BLINKS

4 BLINKS

5 BLINKSCOMPRESSOROUTPUT DELAY

OFF

ON

1 BLINK

2 BLINKS

STATUS LIGHT

OPEN AUX. LIMITSWITCH

IGNITION FAILURE

OPEN ROLLOUTSWITCH

NO POWER ORINTERNAL CONTROL

EQUIPMENT STATUS

CHECKPRESSURE SWITCH

MAIN LIMIT OPENBAD SWITCH

STICKING GAS VALVE3 MIN. COMP.

ANTI-CYCLE TIMER

CHECKPRESSURE SWITCH

GAS PRESSURE

FLAME ROLLOUT

AUX. LIMIT OPEN

FLAME SENSOR

BAD SWITCH

GAS VALVE

GAS FLOW

CHECK INPUT POWERCHECK FUSE ON CONTROL

REPLACE CONTROL

------

CHECK

TR

1

2

6. MOVE WIRE(S) TO APPROPRIATE INPUTVOLTAGE TERMINAL ON TRANSFORMER.

T1

FC1

LPS1 HPS14 2 CC1

4 2 CC2CCR2

CCR1

EM

HIGH SPEED

LOW SPEED

HC

BC2

2

5

4BR1

11

CCR11210

BR1

BR2

2

5

4BR2

BC2

BC1

CB2

CB1

CB1BC1

CB2BC2

HPS2 LPS2

BC2CB2

BC1CB1

SEE NOTE 6

8PS

C

THERMOSTATFIELD WIRINGTHERMOSTATFIELD WIRING

TO THERMOSTAT ++ NOTE 5

TB1

++

RO G CY1W1W2S2S1 RO G CY1W1W2 Y2S2S1

DCG (120, 150) 2103V* 208-230 / 3 / 60 2SP

42

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS

0140

L037

64-A

BK

CM1

FC1

F C

CM2

PU

FC2

F C

COMP1

T2T3 T1

L3T3

CL2 L1

T2 T1 CC

1

YL

RD

BK

C

TR

24V

COMP 2

T2T3 T1

L3T3

CL2 L1

T2 T1

CC

2

YL

RD

BK

BL

BL

OR

OR

RD

BK

BK

LPS1

32222222 4

1

2CC

R1 3

22 22222 41

2CC

R 2

LPS

2H

PS

2

HIG

HE

MLO

W

T1

L3

T2

L1

T3

L2

CB

1H

IGH

SP

EE

D

T1

L3

T2

L1

T3

L2

CB

2LO

WS

PE

ED

L3T3

CL2 L1

T2 T1 BC

1

L3T3

CL2 L1

T2 T1

BC

2

RD

OR

RD

BK

BK R

D

BK

GR

CO

L OR

CO

DE

BK

-----

----

-----

- BLA

CK

BL

-----

----

-----

- BLU

EB

R --

------

------

- BR

OW

NO

R --

-----

-----

--- O

RA

NG

EP

U --

-----

-----

--- P

UR

PLE

RD

----

----

-----

-- R

ED

WH

-----

----

-----

WH

ITE

YL --

-----

-----

---

YELL

OW

PK

-----

----

-----

- P

INK

GR

----

-----

----

--- G

RE

EN

GY-

----

-----

-----

- GR

EY

WIR

ING

CO

DEFA

CT O

RY

WIR

ING

HIG

H V

OLT

AG

ELO

W V

OLT

AG

EO

PTIO

NAL

HIG

H V

OLT

AG

EFI

ELD

WIR

ING

HIG

H V

OLT

AG

E

S1

S2

RC

GW

1W

2Y1

Y2O

3 2 1

96

8 745

PU

PK

PK

PU

WH

YL

WH

GR

BL

BL B

LW

HY

L

PU

YL

BR

WH

WH

BL

BL

RD

BL

BK

BK

PU B

RB

KBR

BL

BL

BL

BL

BL

GR

YL Y

L

BL

OR

YL

VM

PU

OR

RD

BK

RD

BK

RD

YL

HP

S1

YL

OR B

K

VM

R

3 1

BL

BL

WH

RD

RD

BL

BL

PLF

PU

PK

PK

WH

GV

RS

ALS

BR

PU

IIC

WH

RD

GR

OR

SEE NO

TE 3

L2

UNUSED COOLHEAT

DIFS

L14 5 6

2 31

ECO

N 11

8

12

97

10G

R

BL

PU

PU

BR

YL YL

PU

RD

RD

WH

BLB

K

BK

BK

YL

YL

YL

GR

GR

LS

PS

RD

RD

RD

FS

YL

PU

BR

IGN

RD

OR

YL

WH

WH

BL

BL

BL

BL

BL

BL

BL

BL

BL

WH

GR

PU

RD R

D

RD

RD

RD

YL

PKYL

YLYL

GR

BL

GY

BL

YL

BR

RD

RD

RD

WH

RD

PB

BK BK

RD

OR

YL

YL

GN

D

OR RD

BK

RD

OR

BL

YLR

DB

L

RD

RD

GR

GR

BR

1

BR

2

53

21

4N

C

NO

GR

53

21

4N

C

NO

YL

BL

GY

YL

BK

OR

REPLACE JUMPER WITH

SMOKE/FIRE DETECTOR

SEE NOTE 5

SEE NOTE 2

BKB

KBK

YL Y

LY

L

460OR APPROPRIATEINPUT VOLTAGE

240

RD

SEE NOTE 6

RD

BK

BK

OR

OR

POW

ER S

UPP

LY46

0-57

5/3/

60SE

E N

OTE

4

46O ORAPPROPRIATE

INPUTVOLTAGE

RD

RD

WH

WH

GR

DCG (120, 150) 2104V*/ 7V* 460, 575 / 3 / 60 2SP

43

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

WIRING DIAGRAMS

460-575/3/60 0140L03765-A

460-575/3/60SUPPLY VOLTAGE

CC1

L2

T3

COMP1 T2

FCM1

L1

CC1T1

C

CC1

T3

L3T2

SEE UNIT RATING PLATE FOR TYPE AND SIZE

COMPONENT LEGEND

OF OVER CURRENT PROTECTION

ALSBCBRCBCCCCRCMCOMPEMFFCFSGNDGVHPSIBRIICIGNLPSLSPLFPSRSTB1TRVMVMR

OPTIONAL HIGHVOLTAGE

HIGH VOLTAGE

FIELD WIRING

OR ORANGE

YL YELLOW

PU PURPLE

GR GREEN

PK PINK

RD REDWH WHITE

LOW VOLTAGE

BK BLACKWIRE CODE

BR BROWNBL BLUE

LINE VOLTAGE

FACTORY WIRING

LOW VOLTAGE

AUXILLARY LIMIT SWITCHBLOWER CONTACTORBLOWER RELAYCIRCUIT BREAKERCOMPRESSOR CONTACTORCOMPRESSOR CONTACTOR RELAYCONDENSER MOTORCOMPRESSOREVAPORATOR MOTORFUSEFAN CAPACITORFLAME SENSOREQUIPMENT GROUNDGAS VALVEHIGH PRESSURE SWITCHINDOOR BLOWER RELAYINTEGRATED IGNITION CONTROLIGNITORLOW PRESSURE SWITCHLIMIT SWITCHFEMALE PLUG/CONNECTORPRESSURE SWITCHROLLOUT SWITCHTERMINAL BLOCK (24V SIGNAL)TRANSFORMERVENT MOTORVENT MOTOR RELAY

3. L1 AND L2 ON IIC CONTROL IS 24V INPUT.

4. USE COPPER CONDUCTORS ONLY.++ USE NEC CLASS 2 WIRE.

5. FOR TWO STAGE OPERATION REMOVEW1 TO W2 JUMPER WIRE

2. ACCESSORY ECONOMIZER PLUG ADJACENTTO BLOWER HOUSING IN RETURN AIRCOMPARTMENT. REMOVE MALE PLUG ANDATTACH FEMALE PLUG TO THE ECONOMIZERACCESSORY.

1. REPLACEMENT WIRE MUST BE THE SAMESIZE AND TYPE OF INSULATION AS ORIGINAL.(USE COPPER CONDUCTOR ONLY).

NOTES

YL /PK YELLOW WITHPINK STRIP

BL /PK BLUE WITHPINK STRIP

RD

W1

STAT

Y1

Y2

WH

C

G

YL

Y2

2 STAGE COOLING

R

C

G

R

W1

TB1

PK

GR

Y1

BL

W2BRW2NOTE 5

24V

TB1

BC1IIC

VMR

FSIGN

NOTE 3L2

RSGV

PLF

NOTE 2

LS

H C

D1

FSF

5

4

L1 NOTE 3

ALS

ECON

3

6

9

IIC

7

CCR2

321

9 687 4

5

INSTALLER/SERVICEMAN

THE STATUS LIGHT ON THE FURNACE CONTROL MAY BE USED AS A GUIDE TOTROUBLESHOOTING THIS APPLIANCE. STATUS LIGHT CODES ARE AS FOLLOWS:

FALSE FLAME SENSED

OPEN LIMIT SWITCH

WITHOUT INDUCER ONPRESSURE SWITCH CLOSED

PRESSURE SWITCHOPEN

NORMAL OPERATION

3 BLINKS

6 BLINKS

4 BLINKS

5 BLINKSCOMPRESSOROUTPUT DELAY

OFF

ON

1 BLINK

2 BLINKS

STATUS LIGHT

OPEN AUX. LIMITSWITCH

IGNITION FAILURE

OPEN ROLLOUTSWITCH

NO POWER ORINTERNAL CONTROL

EQUIPMENT STATUS

CHECKPRESSURE SWITCH

MAIN LIMIT OPENBAD SWITCH

STICKING GAS VALVE3 MIN. COMP.

ANTI-CYCLE TIMER

CHECKPRESSURE SWITCH

GAS PRESSURE

FLAME ROLLOUT

AUX. LIMIT OPEN

FLAME SENSOR

BAD SWITCH

GAS VALVE

GAS FLOW

CHECK INPUT POWERCHECK FUSE ON CONTROL

REPLACE CONTROL

------

CHECK

TR

1

2

6. MOVE WIRE(S) TO APPROPRIATE INPUTVOLTAGE TERMINAL ON TRANSFORMER.

FC1

LPS1 HPS14 2 CC1

4 2 CC2CCR2

CCR1

HC

BC2

2

5

4BR1

11

CCR11210

BR1

BR2

2

5

4BR2

HPS2 LPS2

SEE NOTE 6

8PS

C

THERMOSTATFIELD WIRINGTHERMOSTATFIELD WIRING

TO THERMOSTAT ++

CB1 BC1

CB2 BC2

BC2 CB2

BC1 CB1

CB1

CB2

BC1

BC2LOW SPEED

HIGH SPEED

EM

T1 T2

T3

CC2

C

T1 CC2

CM2F

T2

COMP2

T3

CC2

FC2

460V ORAPPROPRIATE

INPUTVOLTAGE

VMR

24

C

VM

RO G CY1W1W2 Y2S2S1 RO G CY1W1W2S2S1

DCG (120, 150) 2104V*/ 7V* 460, 575 / 3 / 60 2SP

44

WIRING DIAGRAMS FOR MODELS WITH DDC CONTROLSFor complete information and installation instructions for models with DDC controls,

see manual DK-DDC-TGD-01A

45

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

10

BM

T3L3

T1T2

L1L2C

OM

P1

CF1

BR

BK

BK

BC

CC

1

RD

OR BK

RDYL

BK

014

0L05

758-

A

BR

T3L3

T1T2

L1L2

CF2

BRPU

PU

FC2

BR

T3L3

T1T2

L1L2

CC

2

YL

RD BK

RD

CO

MP

2

BL

BL

RD

T1

T2

T3T3

T2

T1

BL

OR BK

BK

PU

PU

FC1

RD

RD

RD

BK R

D

BL

BK

BL

BL

PU

BK

BK

XS(C

LAS

S2)

BK

DA

BC

S

OA

T

ES

PS

C STB

1T 1

24V

AC

CFS

RS

S

LDS

CO

2

T 2T 3

T 4T 5

SM

K/E

MG

2

BK

PK

PK

GY

BL/

PK

BL/

PK

GY

LPS

1

HP

S2

YL

HP

S1

LPS

2

PU

BL/

PK

BL/

PKY

L/P

K

YL/

PK

YL/

PK

YL/

PK

PK

BK

BK

YL

PU

YL

GN

D24

VA

COA

HV

OU

T (D

C)

GN

D24

VA

C ( C

OM

)24

VA

C

VO

UT

(DC

)

VO

UT

DC

24 V

ACIAH G

ND

BI8

BI5

121110

1

CO

M3-

8R

LY8

BI1

BI2

BI3

BI4

BI7 GN

D

24V

AC

BR

RD

CO

M3-

8

RLY

7R

LY6

RLY

5R

LY4

RLY

3

CO

M1

BL

PU

PU

(OA

T)

(CFS

)

(EM

ER

)(F

AN

PR

OV

)(HE

AT

2)(H

EA

T 1)

YL

BI6

(SH

ED

)

RLY

1R

LY2

CO

M2

(24V

IN)

(EC

ON

PW

R)

(EXF

)(A

LRM

)

(EC

ON

DM

PR

)

(OA

H)

(ISO

L G

ND

)

(SP

C T

MP)

(CO

2)

2345678 12

1 2 3 4 5 6 7 8 9

DD

C (

CLA

SS

2)

(EC

ON

FB)

C

GR

(CLA

SS

2)TB

2

DA

T -t�

(CO

MP

2 O

UT)

(CO

MP

1 O

UT)

(CO

MP

1 IN

)

(CO

MP

2 IN

)

YL YL

2121

HTR

PLF

1H

TR P

LM1

EC

ON

654321 A

O1

AO

2 A

O3

AO

4G

ND

GN

D

WH

AG

SP

CTE

MP TE

MP

GN

DS

TPT

OFF

SE

T

GR

BR

BR

BK

BK

PU

PU

GR

GRBR

BR

BR

GR

BR

BR

GR

RD

RD

RD

BL

BL

BL

BL

PU

PKPK

PU

YL

BK

RD

BK

BK

BK

BL/

PK

BL/

PK

PU

PU YL

PU

PU

RD

YL

PU BK

BKYL

WH

PK

WH

WH

PK

WH

BR

ALR

M-

+

EXF

-+

GR

GR

8 7 6 5 4 3 2 19 A

I3

AI8

AI7

AI6

AI5

AI4

AI1

AI2

AG

ND

AG

ND

10

GR

WH

WH

PU

BK

PU

PK

PLF

WH

BL

TR1

5

RD

RD

PB

GN

D

BK

RD

OR

OR

BL

PU

4

BK

YL

RD

GR

GR

EE

N

WIR

E CO

DE

BL

BLU

E

PU

PU

RP

LEP

K

P

INK

WH

WH

ITE

BK

BLA

CK

RD

RE

D

BR

BR

OW

N

OR

OR

AN

GE

YL

YEL

LOW

GY

GR

AY

-t�

3

BA

C N

ET

3T-

21(B

AC

NET

)R

+S

H

BLO

WE

R C

ON

TAC

TOR

BC

CO

MPR

ES

SO

R C

ON

TAC

TOR

CO

MPR

ES

SO

R

EC

ON

OM

IZER

HIG

H P

RE

SSU

RE

SW

ITC

H

PO

WE

R D

ISTR

IBU

TIO

N B

LOC

KFE

MA

LE P

LUG

/CO

NN

ECTO

R

TER

MIN

AL

BLO

CK

(24V

SIG

NA

L)

CC

CO

MP

EC

ON

HP

S

PB

PLF

TB

CO

MPO

NENT

LEG

END

CIR

CU

IT B

RE

AK

ER

CB

TRGN

D

BC

SB

LOW

ER

CU

RR

ENT

SW

ITC

HB

MB

LOW

ER

MO

TOR

CFS

CLO

GG

ED

FIL

TER

SW

ITC

HC

FC

ON

DEN

SER

FA

N

DA

TD

ISC

HAR

GE

AIR

TE

MP

ER

ATU

RE

SE

NS

OR

DD

CD

IRE

CT

DIG

ITA

L C

ON

TRO

L

CO

2C

ARB

ON

DIO

XID

E S

EN

SO

R

FCFA

N C

AP

ACIT

OR

EQ

UIP

ME

NT

GR

OU

ND

GV

GA

S V

ALV

E

EXF

EXH

AUST

FA

N

IAH

IND

OO

R A

IR H

UM

IDIT

Y S

EN

SO

R

LOW

PR

ES

SU

RE

SW

ITC

HLP

S

RS

SR

EM

OTE

STA

RT/

STO

P

OA

TO

UTD

OO

R A

IR T

EM

PE

RAT

UR

E S

EN

SO

RO

AH

OU

TDO

OR

AIR

HU

MID

ITY

SE

NS

OR

LDS

LOA

D S

HED

DIN

G

SP

CTE

MP

SP

AC

E T

EM

PE

RAT

UR

E S

EN

SO

R

TRAN

SFO

RM

ER

YL/

PK

YE

LLO

W W

ITH

PIN

K S

TRIP

EB

L/PK

B

LUE

WIT

H

P

INK

STR

IPE

+-

HG

RH

BL

BR

OR

BK

ALR

MA

LAR

M

HG

RH

HO

T G

AS

RE

HE

AT

SM

KS

MO

KE

DE

TEC

TOR

BL

BL

PU

PU

GR

GR

BK

BK

BK

BK

GR

L1 L2 L3

LIN

E V

OLT

AG

E

BL

BL

BL

BL

BL

BL

RD

IIC

PS

ALS

LS

RS

1ST

STG

CO

M

GV

FS

VM

R

RD

RD

RD

3A

24 V

AC

PW

R1 2 3 4 5 6 8

24 V

AC

CO

MG

V O

UT

TMP

LM

T O

UT

TMP

LM

T IN

PR

ESS

SW

INP

RE

SS S

W O

UT

HE

AT

INFL

AM

E S

EN

SE

IGN

ITO

R

PU

PU

24 V

AC

PW

RL1 L1

RD

RD

RD

YL

L2 L2 L2 L2

BL

PK

YL

PU

BL

BR GY

GY

BL

D1

BL

PK

PK

PK

BL

PU

BL

2ND

STG

24 V

AC

CO

M

VE

NT

MTR

F1 F1

HE

AT

BK

PK

WH

YL

65

43

21

BR

WH

WH

BL

BL

BL

GY

YL

BL

BL

BK

WH

BK

BR

WH

BK

BR

WH

BR

BR

BR

BR

BR

BR

BR

WH

BR

BR

WH

BR

WH

WH

BK

BK

BK

BK

BK

BK

WH

WH

BK

BK

PU

BK

BLB

L

PK

PK

PK

H

IGH

VO

LTA

GE

FIEL

D W

IRIN

G

L

OW

VO

LTA

GE

FACT

ORY

WIR

ING

OPT

IONA

L AC

CESS

ORIE

S O

R F

IELD

SU

PPLI

EDCO

MPO

NENT

S

OP

TIO

NA

L L

OW

VO

LTA

GE

NO

TES

:

1. R

EP

LAC

EM

EN

T W

IRE

MU

ST

BE

SA

ME

SIZ

E A

ND

TY

PE

O

F IN

SU

LATI

ON

AS

OR

IGIN

AL

(AT

LEAS

T 10

5� C

).

US

E C

OP

PE

R C

ON

DU

CTO

RS

ON

LY.

U

SE

N.E

.C. C

LAS

S 2

WIR

E F

OR

ALL

LO

W V

OLT

AG

E

FIE

LD C

ON

NE

CTI

ON

S.

I

F O

PTI

ON

AL

SM

OK

E D

ETE

CTO

R IS

INS

TALL

ED

,

RE

MO

VE

RE

D J

UM

PE

R W

IRE

CO

NN

EC

TIO

NS

T

B1-

XS T

O T

B1-

ES

.

D

ISC

HA

RG

E A

IR T

EM

PE

RA

TUR

E S

EN

SO

R S

HIP

PE

D

WIT

H U

NIT

IN C

ON

TRO

L B

OX.

IN

STA

LL A

ND

CO

NN

EC

T

PE

R T

HE

ATT

AC

HE

D IN

STR

UC

TIO

NS

/WIR

ING

DIA

GR

AM

.

I

F O

PTI

ON

AL

EC

ON

OM

IZE

R IS

INS

TALL

ED

, CO

NN

EC

T

EC

ON

PLF

TO

EC

ON

OM

IZE

R.

EC

ON

OM

IZE

R P

LUG

LO

CA

TED

I

N T

HE

RE

TUR

N A

IR C

OM

PA

RTM

EN

T.

R

ED

/BLA

CK

WIR

ES

CO

NN

EC

TED

TO

AP

PR

OP

RIA

TE H

IGH

V

OLT

AG

E (4

60V

OR

575

V) I

NP

UT

TER

MIN

AL

ON

PR

IMA

RY

S

IDE

OF

TR1.

2 3 4 5

PKR

D

RD

RD

PK

PK

BL

RD

VM

WH

WH

31

VM

R

OR

ALS

AU

XILI

AR

Y L

IMIT

SW

ITC

H

IICIN

TIG

RA

TED

IGN

ITIO

N C

ON

TRO

LLS

LIM

IT S

WIT

CH

PS

PR

ES

SUR

E S

WIT

CH

RS

RO

LL-O

UT

SW

ITC

H

FSFL

AM

E S

EN

SE

VM

BL

VE

NT

MO

TOR

VM

RV

EN

T M

OTO

R R

ELA

Y

IIC

UN

US

ED

BR

BR

BR

WH

BL

BL

BL

24V

CN

TLV

OLT

AG

E

TR3

CO

M

230V

460V

OR

575V

OR

RD

LIN

EV

OLT

AG

E

OR

BK

RD

BK B

K RD

OR

BK

RD

RD

RD

BK

OR

OR

RD

RD

BK

RD

OR

OR

OR

OR

RD

BK

BK

L3

RD

OR

BK

RD

OR

OR

BL

BK

BL

BL

BL

BL

BK

RD

L2L1

RD

RD

OR

BKO

R

RD

RD

BK

BK

BK

H

IGH

VO

LTA

GE

L

OW

VO

LTA

GE

OR

OR

OR

POW

ER

& C

ON

TRO

L W

IRIN

G D

IAG

RAM

DC

G(0

90-1

50) *

**(4

,7)B

DD

C

RD

BK

WH

BR

RD

BL

BL

BL

(SP

C T

MP)

(SU

PP

LY A

IR T

MP)

(MO

D H

GR

H)

(SP

C H

UM

)

(CO

MP

PR

ESS

1)

(BLO

WE

R S

TAG

E 1

)

(CO

MP

PR

ESS

2)

(SP

C S

LID

E A

DJ)

(RM

T S

TRT/

STP

)

DCG 090*/ 102*/ 120*/ 150* 460, 575 / 3 / 60 1SPWIRING DIAGRAMS

46

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

FC1

10

BM

T3L3

T1T2

L1L2C

OM

P1

CF1

BR

BK

BK

BC

CC

1

RD

OR BK

RDYL

BK

014

0L05

764-

A

BR

T3L3

T1T2

L1L2

CF2

BRPU

PU

FC2

BR

T3L3

T1T2

L1L2

CC

2

YL

RD BK

RD

CO

MP

2

BL

BL

RD

T1

T2

T3T3

T2

T1

BL

OR

BK

BK

PU

PU

RD

RD

RD

BK R

D

BL

BK

BL

BL

PU

BK

BK

XS(C

LAS

S2)

BK

DA

BC

S

OA

T

ES

PS

C STB

1T 1

24V

AC

CFS

RS

S

LDS

CO

2

T 2T 3

T 4T 5

SM

K/E

MG

2

BK

PK

PK

GY

BL/

PK

BL/

PK

GY

LPS

1

HP

S2

YL

HP

S1

LPS

2

PU

BL/

PK

BL/

PK

YL/

PK

YL/

PK

YL/

PK

YL/

PK

PK

BK

BK

YL

PU

YL

GN

D24

VA

COAH

VO

UT

(DC

)

GN

D24

VA

C (C

OM

)24

VA

C

VO

UT

(DC

)

VO

UT

DC

24 V

ACIAH G

ND

BI8

BI5

121110

1

CO

M3-

8R

LY8

BI1

BI2

BI3

BI4

BI7 GN

D

24V

AC

BR

RD

CO

M3-

8

RLY

7R

LY6

RLY

5R

LY4

RLY

3

CO

M1

BL

PU

PU

(OA

T)

(CFS

)

(EM

ER)

(FA

N P

RO

V)(HE

AT

2)(H

EA

T 1)

YL

BI6

(SH

ED

)

RLY

1R

LY2

CO

M2

(24V

IN)

(EC

ON

PW

R)

(EXF

)(A

LRM

)

(EC

ON

DM

PR)

(OAH

)

(ISO

L G

ND

)

(SPC

TM

P)(C

O2)

2345678 12

1 2 3 4 5 6 7 8 9

DD

C (

CLA

SS

2)

(EC

ON

FB)

C

GR

(CLA

SS

2)TB

2

DA

T -t�

(CO

MP

2 O

UT)

(CO

MP

1 O

UT)

(CO

MP

1 IN

)

(CO

MP

2 IN

)

YL YL

2121

HTR

PLF

1H

TR P

LM1

ECO

N

654321 A

O1

AO

2 A

O3

AO

4G

ND

GN

D

WH

AG

SP

CTE

MP TE

MP

GN

DS

TPT

OFF

SE

T

GR

BR

BR

BK

BK

PU

PU

GR

GRBR

BR

BR

GR

BR

BR

GR

RD

RD

RD

BL

BL

BL

BL

PU

PKPK

PU

YL

BK

RD

BK

BK

BK

BL/

PK

BL/

PK

PU

PU YL

PU

PU

RD

YL

PU BK

BK

YL

WH

PK

WH

WH

PK

WH

BR

ALR

M-

+

EXF

-+

GR

GR

8 7 6 5 4 3 2 19 A

I3

AI8

AI7

AI6

AI5

AI4

AI1

AI2

AG

ND

AG

ND

10

GR

WH

WH

PU

BK

PU

PK

PLF

WH

BL

BL

TR1

5

RD

RD

PB

GN

D

BK

RD

OR

BL

PU

4

BK

YL

RD

GR

GR

EEN

WIR

E C

OD

E

BL

BLU

E

PU

PU

RP

LEP

K

P

INK

WH

WH

ITE

BK

BLA

CK

RD

RED

BR

BR

OW

N

OR

OR

ANG

E

YL

YE

LLO

W

GY

GR

AY

-t�

3

BA

C N

ET

3T-

21(B

ACN

ET)

R+

SH

BLO

WE

R C

ON

TAC

TOR

BC

CO

MP

RES

SO

R C

ON

TAC

TOR

CO

MP

RE

SS

OR

EC

ON

OM

IZE

R

HIG

H P

RES

SU

RE

SW

ITC

H

PO

WE

R D

ISTR

IBU

TIO

N B

LOC

KFE

MAL

E P

LUG

/CO

NN

EC

TOR

TER

MIN

AL B

LOC

K (2

4V S

IGN

AL)

CC

CO

MP

EC

ON

HP

S

PB

PLF

TB

COM

PONE

NT

LEG

END

CIR

CU

IT B

RE

AKE

RC

B

TRGN

D

BC

SB

LOW

ER

CU

RR

EN

T S

WIT

CH

BM

BLO

WE

R M

OTO

R

CFS

CLO

GG

ED

FIL

TER

SW

ITC

HC

FC

ON

DE

NS

ER

FA

N

DA

TD

ISC

HA

RG

E A

IR T

EMP

ER

ATU

RE

SE

NS

OR

DD

CD

IRE

CT

DIG

ITA

L C

ON

TRO

L

CO

2C

AR

BO

N D

IOXI

DE

SE

NS

OR

FCFA

N C

APA

CIT

OR

EQ

UIP

ME

NT

GR

OU

ND

GV

GA

S V

ALV

E

EXF

EXH

AUST

FA

N

IAH

IND

OO

R A

IR H

UM

IDIT

Y S

EN

SO

R

LOW

PR

ESS

UR

E S

WIT

CH

LPS

RS

SR

EM

OTE

STA

RT/

STO

P

OA

TO

UTD

OO

R A

IR T

EM

PER

ATU

RE

SE

NS

OR

OA

HO

UTD

OO

R A

IR H

UM

IDIT

Y S

EN

SO

R

LDS

LOA

D S

HE

DD

ING

SP

CTE

MP

SP

AC

E T

EMP

ER

ATU

RE

SE

NS

OR

TRA

NS

FOR

ME

R

YL/

PK

YE

LLO

W W

ITH

PIN

K S

TRIP

EB

L/P

K

BLU

E W

ITH

PIN

K S

TRIP

E

+-

HG

RH

BL

BR

OR

BK

ALR

MA

LAR

M

HG

RH

HO

T G

AS

RE

HE

AT

SM

KS

MO

KE D

ETE

CTO

R

BL

BL

PU

PU

GR

GR

BK

BK

BK

BK

GR

L1 L2 L3

LIN

E V

OLT

AG

E

BL

BL

BL

BL

BL

BL

RD

IIC

PS

ALS

LS

RS

1ST

STG

CO

M

GV

FS

VM

R

RD

RD

RD

3A

24 V

AC

PW

R1 2 3 4 5 6 8

24 V

AC

CO

MG

V O

UT

TMP

LM

T O

UT

TMP

LM

T IN

PR

ES

S S

W IN

PR

ES

S S

W O

UT

HE

AT

INFL

AM

E S

ENS

E

IGN

ITO

R

PU

PU

24 V

AC

PW

RL1 L1

RD

RD

RD

YL

L2 L2 L2 L2

BL

PK

YL

PU

BL

BR GY

GY

BL

D1

BL

PK

PK

PK

BL

PU

BL

2ND

STG

24 V

AC

CO

M

VE

NT

MTR

F1 F1

HE

AT

BK

PK

WH

YL

65

43

21

BR

WH

WH

BL

BL

BL

GY

YL

BL

BL

BK

WH

BK

BR

WH

BK

BR

WH

BRB

R

BR

BR

BR

BR

BR

WH

BR

BR

WH

BR

WH

WH

BK

BK

BK

BK

BK

BK

WH

WH

BK

BK

PU

BK

BLB

L

PK

PK

PK

H

IGH

VO

LTA

GE

FIEL

D W

IRIN

G

L

OW

VO

LTA

GE

FACT

OR

Y W

IRIN

G

OPT

ION

AL

AC

CESS

OR

IES

OR

FIE

LD S

UPPL

IED

CO

MPO

NEN

TS

OP

TIO

NA

L L

OW

VO

LTA

GE

NO

TES

:

1. R

EPL

AC

EM

ENT

WIR

E M

US

T B

E S

AM

E S

IZE

AN

D T

YP

E

OF

INS

ULA

TIO

N A

S O

RIG

INA

L (A

T LE

AS

T 10

5� C

).

US

E C

OPP

ER C

ON

DU

CTO

RS

ON

LY.

U

SE

N.E

.C. C

LAS

S 2

WIR

E F

OR

ALL

LO

W V

OLT

AG

E

FIE

LD C

ON

NE

CTI

ON

S.

I

F O

PTI

ON

AL

SM

OK

E D

ETE

CTO

R IS

INS

TALL

ED

,

RE

MO

VE

RE

D J

UM

PER

WIR

E C

ON

NE

CTI

ON

S

TB

1-XS

TO

TB

1-E

S.

D

ISC

HA

RG

E A

IR T

EM

PER

ATU

RE

SE

NS

OR

SH

IPP

ED

W

ITH

UN

IT IN

CO

NTR

OL

BO

X. I

NS

TALL

AN

D C

ON

NE

CT

P

ER

TH

E A

TTA

CH

ED

INS

TRU

CTI

ON

S/W

IRIN

G D

IAG

RA

M.

I

F O

PTI

ON

AL

ECO

NO

MIZ

ER IS

INS

TALL

ED

, CO

NN

EC

T

EC

ON

PLF

TO

EC

ON

OM

IZER

. E

CO

NO

MIZ

ER P

LUG

LO

CA

TED

I

N T

HE

RE

TUR

N A

IR C

OM

PAR

TMEN

T.

T

R1

PRIM

ARY

(HIG

H V

OLT

AG

E) C

ON

NE

CTI

ON

S: R

ED

WIR

E

CO

NN

EC

TED

TO

240

V T

AP

AT

THE

FAC

TOR

Y.F

OR

208

V

SU

PPL

Y P

OW

ER

, MO

VE

RE

D W

IRE

FR

OM

240

V T

AP

TO

TH

E

208

V T

AP.

V

M W

IRED

FO

R 2

30V

SU

PP

LY P

OW

ER

. FO

R 2

08V

SU

PP

LY

PO

WE

R, D

ISC

ON

NE

CT

THE

RE

D V

M W

IRE

FR

OM

CC

1-L2

T

ER

MIN

AL.

CO

NN

EC

T TH

E R

ED

WIR

E R

EM

OVE

D F

RO

M C

C1-

L2

TO

IIC

UN

US

ED

TER

MIN

AL, T

HE

N D

ISC

ON

NE

CT

BLA

CK

WIR

E

FR

OM

IIC

-UN

US

ED

AN

D C

ON

NE

CT

TO C

C1-

L1.

2 3 4 5

PKR

D

RD

RD

PK

PK

BL

RD

VM

WH

WH

31

VM

R

OR

ALS

AU

XILI

AR

Y L

IMIT

SW

ITC

H

IICIN

TIG

RA

TED

IGN

ITIO

N C

ON

TRO

LLS

LIM

IT S

WIT

CH

PS

PR

ESS

UR

E S

WIT

CH

RS

RO

LL-O

UT

SW

ITC

H

FSFL

AM

E S

EN

SE

VM

BL

VE

NT

MO

TOR

VMR

VEN

T M

OTO

R R

ELA

Y

IIC

UN

US

ED

BR

BR

BR

WH

BL

BL

BL

24V

CN

TLV

OLT

AG

E

OR

RD

LIN

EV

OLT

AG

E

OR

BK

RD

BK B

K RD

OR

BK

RD

RD

BK

OR

OR

RD

RD

BK

RD

OR

OR

RD

L3

OR

BK

RDO

R

BL

BL

BL

BL

BL

BK

RD

L2L1

RD

RD

RD

RD

BK

BK

BK

H

IGH

VO

LTA

GE

L

OW

VO

LTA

GE

OR OR

OR

PO

WE

R &

CO

NTR

OL

WIR

ING

DIA

GR

AM

DC

G(0

90-1

50) *

**(3

)BD

DC

RD

BK

WH

BR

RD

RD

RD

OR

RD

6

6

6

BL

BL

(SPC

TM

P)

(SU

PP

LY A

IR T

MP)

(MO

D H

GR

H)

(SPC

HU

M)

(CO

MP

PR

ESS

1)

(BLO

WE

R S

TAG

E 1

)

(CO

MP

PR

ESS

2)

(SPC

SLI

DE

AD

J)

(RM

T S

TRT/

STP

)

DCG 090*/ 102*/ 120*/ 150* 208-230 / 3 / 60 1SPWIRING DIAGRAMS

47

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

10

T3L3

T1T2

L1L2C

OM

P1

CF1

BR

BK

BK

BC

1CC

1

RDYL

BK

014

0L05

771-

A

BR

T3L3

T1T2

L1L2

CF2

BRPU

PU

FC2

BR

T3L3

T1T2

L1L2

CC

2

YL

RD BK

RD

CO

MP

2

BL

BL

T1

T2

T3T3

T2

T1

BL

OR BK

BK

PU

PU

FC1

RD

RD

RD

BK

RD

BL

BK

BL

PU

BK

BK

XS(C

LAS

S2)

BK

DA

BC

S

OA

T

ES

PS

C STB

1T 1

24V

AC

CFSRS

S

LDS

CO

2

T 2T 3

T 4T 5

SM

K/E

MG

2

BK

PK

PK

GY

BL/

PK

BL/

PK

GY

LPS

1

HP

S2

YL

HP

S1

LPS

2

PU

BL/

PK

BL/

PK

YL/

PK

YL/

PK

YL/

PK

YL/

PK

PK

BK

BK

YL

PU

YL

GN

D24

VA

COA

HV

OU

T (D

C)

GN

D24

VA

C (C

OM

)24

VA

C

VO

UT

(DC

)

VO

UT

DC

24 V

ACIAH G

ND

BI8

BI5

121110

1

CO

M3-

8R

LY8

BI1

BI2

BI3

BI4

BI7 GN

D

24V

AC

BR

RD

CO

M3-

8

RLY

7R

LY6

RLY

5R

LY4

RLY

3

CO

M1

BL

PU

PU

(OA

T)

(CFS

)

(EM

ER)

(FAN

PR

OV

)(HE

AT

2)(H

EA

T 1)

YL

BI6

(SH

ED)

RLY

1R

LY2

CO

M2

(24V

IN)

(EC

ON

PW

R)

(EXF

)(A

LRM

)

(EC

ON

DM

PR)

(OAH

)

(ISO

L G

ND

)

(SPC

TM

P)

(CO

2)

2345678 12

1 2 3 4 5 6 7 8 9

DD

C (

CLA

SS

2)

(EC

ON

FB)

C

GR

(CLA

SS

2)TB

2

DA

T -t�

(CO

MP2

OU

T)(C

OM

P1 O

UT)

(CO

MP1

IN)

(CO

MP2

IN)

YL YL

2121

HTR

PLF

1H

TR P

LM1

EC

ON

654321 A

O1

AO

2 A

O3

AO

4G

ND

GN

D

WH

AG

SP

CTE

MP TE

MP

GN

DS

TPT

OFF

SE

T

GR

BR

BR

BK

BK

PU

PU

GR

GRBR

BR

BR

GR

BR

BR

GR

RD

RD

RD

BL

BL

BL

BL

PU

PKPK

PU

YL

BK

RD

BK

BK

BK

BL/

PK

BL/

PK

PU

PU YL

PU

PU

RD

YL

PU

BRYL

WH

PK

WH

WH

PK

WH

BR

ALR

M-

+

EXF

-+

GR

GR

8 7 6 5 4 3 2 19 A

I3

AI8

AI7

AI6

AI5

AI4

AI1

AI2

AG

ND

AG

ND

10

GR

WH

WH

PU

BK

PU

PK

PLF

WH

BL

TR1

5

RD

RD

PB

GN

D

BK

RD

OR

OR

BL

PU

4

BK

YL

GR

GR

EEN

WIR

E CO

DE

BL

BLU

E

PU

PU

RPL

EP

K

P

INK

WH

WH

ITE

BK

BLA

CK

RD

RED

BR

BR

OW

N

OR

OR

ANG

E

YL

YE

LLO

W

GY

GR

AY

-t�

3

BA

C N

ET

3T-

21(B

ACN

ET)

R+

SH

YL/

PK

YE

LLO

W W

ITH

PIN

K S

TRIP

EB

L/P

K

BLU

E W

ITH

PIN

K S

TRIP

E

+-

HG

RH

BR

OR

BK

BL

BL

PU

PU

GR

GR

BK

BK

BK

BK

GR

L1 L2 L3

LIN

E V

OLT

AG

E

BL

BL

BL

BL

BL

RD

IIC

PS

ALS

LS

RS

1ST

STG

CO

M

GV

FS

VM

R

RD

RD

RD

3A

24 V

AC

PW

R1 2 3 4 5 6 8

24 V

AC

CO

MG

V O

UT

TMP

LM

T O

UT

TMP

LM

T IN

PR

ES

S S

W IN

PR

ES

S S

W O

UT

HE

AT

INFL

AM

E S

EN

SE

IGN

ITO

R

PU

PU

24 V

AC

PW

RL1 L1

RD

RD

RD

YL

L2 L2 L2 L2

BL

PK

YL

PU

BL

BR GY

GY

BL

D1

BL

PK

PK

PK

BL

PU

BL

2ND

STG

24 V

AC

CO

M

VE

NT

MTR

F1 F1

HE

AT

BK

PK

WH

YL

65

43

21

BR

WH

WH

BL

BL

BL

GY

YL

BL

BL

BK

WH

BK

BR

WH

BK

BR

BR

BR

BR

BR

BR

BR

BR

WH

BR

BR

WH

BR

WH

WH

BK

BK

BK

BK BK

BK

WH

WH

BK

BK

PU

BK

PK

PK

PK

H

IGH

VO

LTA

GE

FIEL

D W

IRIN

G

L

OW

VO

LTA

GE

FACT

OR

Y W

IRIN

G

OP

TIO

NA

L L

OW

VO

LTA

GE

RD

RD

RD

PK

PK

BL

RD

VM

WH

WH

31

VM

R

OR

BL

IIC

UN

US

ED

BR

BR

BR

WH

BL

BL

24V

CN

TLV

OLT

AG

E

TR3

CO

M

230V

460V

OR

575V

OR

RD

LIN

EV

OLT

AG

E

OR

BK

RD

BK B

K RD

OR

BK

RD

RD

RD

BK

OR

OR

RD

RD

OR

OR

OR

OR

RD

BK

BK

L3

RD

OR

BK

RD

OR

OR

BL

BK

BL

BL

BL

BK

RD

L2L1

RD

OR

BKO

R

RD

BK

BK

BK

H

IGH

VO

LTA

GE

L

OW

VO

LTA

GE

OR

PO

WE

R &

CO

NTR

OL

WIR

ING

DIA

GR

AMD

CG

(090

-102

) ***

(4,7

)VD

DC

RD

WH

BR

BL

BL

BL

BL B

L

RD

RD

BC

2

T3L3

T1T2

L1L2

OR BK

RD

BLO

WE

R C

ON

TAC

TOR

BC

CO

MP

RE

SS

OR

CO

NTA

CTO

R

CO

MP

RE

SS

OR

EC

ON

OM

IZE

R

HIG

H P

RES

SU

RE

SW

ITC

H

PO

WE

R D

ISTR

IBU

TIO

N B

LOC

KFE

MA

LE P

LUG

/CO

NN

EC

TOR

TER

MIN

AL

BLO

CK

(24V

SIG

NAL

)

CC

CO

MP

EC

ON

HP

S

PB

PLF

TB

CO

MPO

NEN

T LE

GEN

D

CIR

CU

IT B

REA

KE

RC

B

TRGN

D

BC

SB

LOW

ER

CU

RR

EN

T S

WIT

CH

BM

BLO

WE

R M

OTO

R

CFS

CLO

GG

ED

FIL

TER

SW

ITC

HC

FC

ON

DE

NSE

R F

AN

DA

TD

ISC

HA

RG

E A

IR T

EM

PER

ATU

RE

SE

NS

OR

DD

CD

IRE

CT

DIG

ITA

L C

ON

TRO

L

CO

2C

AR

BO

N D

IOXI

DE

SE

NS

OR

FCFA

N C

APA

CIT

OR

EQ

UIP

ME

NT

GR

OU

ND

GV

GA

S V

ALV

E

EXF

EXH

AU

ST

FAN

IAH

IND

OO

R A

IR H

UM

IDIT

Y S

EN

SO

R

LOW

PR

ES

SU

RE

SW

ITC

HLP

S

RSS

RE

MO

TE S

TAR

T/S

TOP

OA

TO

UTD

OO

R A

IR T

EM

PE

RA

TUR

E S

EN

SO

RO

AH

OU

TDO

OR

AIR

HU

MID

ITY

SE

NS

OR

LDS

LOA

D S

HE

DD

ING

SP

CTE

MP

SPA

CE

TE

MPE

RA

TUR

E S

EN

SO

R

TRA

NS

FOR

ME

R

ALR

MAL

ARM

HG

RH

HO

T G

AS

RE

HE

AT

SM

KS

MO

KE D

ETE

CTO

R

NO

TES

:

1. R

EP

LAC

EM

ENT

WIR

E M

US

T B

E S

AM

E S

IZE

AN

D T

YP

E

OF

INS

ULA

TIO

N A

S O

RIG

INA

L (A

T LE

AS

T 10

5� C

).

USE

CO

PPER

CO

ND

UC

TOR

S O

NLY

.

US

E N

.E.C

. CLA

SS

2 W

IRE

FO

R A

LL L

OW

VO

LTA

GE

F

IELD

CO

NN

ECTI

ON

S.

I

F O

PTI

ON

AL

SM

OK

E D

ETE

CTO

R IS

INS

TALL

ED

,

RE

MO

VE

RED

JU

MP

ER W

IRE

CO

NN

ECTI

ON

S

TB

1-XS

TO

TB

1-E

S.

D

ISC

HAR

GE

AIR

TE

MP

ERA

TUR

E S

EN

SO

R S

HIP

PE

D

WIT

H U

NIT

IN C

ON

TRO

L B

OX.

IN

STA

LL A

ND

CO

NN

ECT

P

ER

TH

E A

TTA

CH

ED IN

STR

UC

TIO

NS

/WIR

ING

DIA

GR

AM

.

I

F O

PTI

ON

AL

EC

ON

OM

IZER

IS IN

STA

LLE

D, C

ON

NEC

T

EC

ON

PLF

TO

EC

ON

OM

IZER

. E

CO

NO

MIZ

ER P

LUG

LO

CA

TED

I

N T

HE

RE

TUR

N A

IR C

OM

PAR

TMEN

T.

R

ED

/BLA

CK

WIR

ES

CO

NN

ECTE

D T

O A

PP

RO

PRIA

TE H

IGH

V

OLT

AG

E (4

60V

OR

575

V) I

NPU

T TE

RM

INAL

ON

PR

IMAR

Y

SID

E O

F TR

1.

2 3 4 5

ALS

AU

XILI

AR

Y L

IMIT

SW

ITC

H

IICIN

TIG

RA

TED

IGN

ITIO

N C

ON

TRO

LLS

LIM

IT S

WIT

CH

PS

PR

ESS

UR

E S

WIT

CH

RS

RO

LL-O

UT

SW

ITC

H

FSFL

AM

E S

EN

SE

VMV

EN

T M

OTO

RVM

RV

EN

T M

OTO

R R

ELA

Y

BR

OR

BK

BR

BK

BL

BL

BR

BR

BR

BR

BK

BM

GY BL

YL

BL

BL

RD

BK

BKB

KO

R

RD BK

GY YL

BL

BL

WH

OR

OR BK

BL

OR

RD

BK

BK

RD

BK

OR

RD

OR

(SU

PPL

Y A

IR T

MP

)

(RM

T S

TRT/

STP

)

(MO

D H

GR

H)

(SP

C H

UM

)

(CO

MP

PR

ES

S 1

)

(BLO

WE

R S

TAG

E 1

)

(CO

MP

PR

ES

S 2

)

(BLO

WE

R S

TAG

E 2

)

(SP

C S

LID

E A

DJ)

OPT

ION

AL

AC

CES

SOR

IES

OR

FIE

LD S

UPP

LIED

CO

MPO

NEN

TS

DCG 090*/ 102* 460, 575 / 3 / 60 2SPWIRING DIAGRAMS

48

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

10

T3L3

T1T2

L1L2C

OM

P1

CF1

BR

BK

BK

BC

1CC

1

RDYL

BK

014

0L05

772-

A

BR

T3L3

T1T2

L1L2

CF2

BRPU

PU

FC2

BR

T3L3

T1T2

L1L2

CC

2

YL

RD BK

RD

CO

MP

2

BL

BL

T1

T2

T3T3

T2

T1

BL

OR

BK

BK

PU

PU

FC1

RD

RD

RD

BK RD

BL

BK

BL

PU

BKB

K

XS(C

LAS

S2)

BK

DA

BC

S

OA

T

ESP

SC S

TB1

T 124

VA

C

CFS

RS

S

LDS

CO

2

T 2T 3

T 4T 5

SM

K/E

MG

2

BK

PK

PK

GY

BL/

PK

BL/

PK

GY

LPS

1

HP

S2

YL

HP

S1

LPS2

PU

BL/

PK

BL/

PK

YL/

PK

YL/

PK

YL/

PK

YL/

PK

PK

BK

BK

YL

PU

YL

GN

D24

VA

COA

HV

OU

T (D

C)

GN

D24

VA

C (C

OM

)24

VA

C

VO

UT

(DC

)

VO

UT

DC

24 V

ACIAH G

ND

BI8

BI5

121110

1

CO

M3-

8R

LY8

BI1

BI2

BI3

BI4

BI7 GN

D

24VA

C

BR

RD

CO

M3-

8

RLY

7R

LY6

RLY

5R

LY4

RLY

3

CO

M1

BL

PU

PU

(OA

T)

(CFS

)

(EM

ER

)(F

AN

PR

OV

)(HE

AT

2)(H

EA

T 1)

YL

BI6

(SH

ED

)

RLY

1R

LY2

CO

M2

(24V

IN)

(EC

ON

PW

R)

(EXF

)(A

LRM

)

(EC

ON

DM

PR

)

(OA

H)

(ISO

L G

ND

)

(SP

C T

MP

)(C

O2)

2345678 12

1 2 3 4 5 6 7 8 9

DD

C (

CLA

SS2

)

(EC

ON

FB

)

C

GR

(CLA

SS2)

TB2

DA

T -t�

(CO

MP

2 O

UT)

(CO

MP

1 O

UT)

(CO

MP

1 IN

)

(CO

MP

2 IN

)

YL YL

2121

HTR

PLF

1H

TR P

LM1

EC

ON

654321 A

O1

AO

2 A

O3

AO

4G

ND

GN

D

WH

AG

SPC

TEM

P TEM

P

GN

DS

TPT

OFF

SE

T

GR

BR

BR

BK

BK

PU

PU

GR

GRBR

BR

BR

GR

BR

BR

GR

RD

RD

RD

BL

BL

BL

BL

PU

PKPK

PU

YL

BK

RD

BK

BK

BK

BL/

PKB

L/PK

PU

PU YL

PU

PU

RD

YL

PU

BRYL

WH

PK

WH

WH

PK

WH

BR

ALR

M-

+

EXF

-+

GR

GR

8 7 6 5 4 3 2 19 A

I3

AI8

AI7

AI6

AI5

AI4

AI1

AI2

AG

ND

AG

ND

10

GR

WH

WH

PU

BK

PU

PK

PLF

WH

BL

TR1

5

RD

RD

PB

GN

D

BKR

D

OR

OR

BL

PU

4

BK

YL

GR

GR

EEN

WIR

E CO

DE

BL

B

LUE

PU

PU

RPL

EP

K

P

INK

WH

WH

ITE

BK

BLA

CK

RD

RE

D

BR

BR

OW

N

OR

OR

AN

GE

YL

YE

LLO

W

GY

GR

AY

-t�

3

BA

C N

ET

3T-

21(B

AC

NE

T)R

+S

H

YL/

PK

YE

LLO

W W

ITH

PIN

K S

TRIP

EBL

/PK

BL

UE

WIT

H

P

INK

STR

IPE

+-

HG

RH

BR

OR

BK

BL

BL

PU

PU

GR

GR

BK

BK

BK

BK

GR

L1 L2 L3

LIN

E V

OLT

AG

E

BL

BL

BLBL

BL

RD

IIC

PS

ALS

LS

RS

1ST

STG

CO

M

GV

FS

VM

R

RD

RD

RD

3A

24 V

AC

PW

R1 2 3 4 5 6 8

24 V

AC

CO

MG

V O

UT

TMP

LM

T O

UT

TMP

LM

T IN

PR

ES

S S

W IN

PR

ES

S S

W O

UT

HE

AT

INFL

AM

E S

EN

SE

IGN

ITO

R

PU

PU

24 V

AC

PW

RL1 L1

RD

RD

RD

YL

L2 L2 L2 L2

BL

PK

YL

PU

BLBR GY

GY

BLD

1

BLPK

PK

PK

BL

PU

BL

2ND

STG

24 V

AC

CO

M

VE

NT

MTR

F1 F1

HE

AT

BKPK

WH

YL

65

43

21

BR

WH

WH

BL

BL

BL

GY

YL

BL

BL

BK

WH

BK

BR

WH

BK

BR

BR

BR

BR

BR

BR

BR

BR

WH

BR

BR

WH

BR

WH

WH

BKBK

BK

BK BK

BK

WH

WH

BK

BK

PU

BK

PK

PK

PK

H

IGH

VO

LTA

GE

FIEL

D W

IRIN

G

L

OW

VO

LTA

GE

FACT

OR

Y W

IRIN

G

OPT

IONA

L AC

CES

SOR

IES

OR

FIEL

D S

UPP

LIED

CO

MPO

NEN

TS

OP

TIO

NA

L L

OW

VO

LTA

GE

RD

RD

RD

PK

PK

BL

RD

VM

WH

WH

31

VM

R

OR

BL

IIC

UN

US

ED

BR

BR

BR

WH

BL

BL

24V

CN

TLV

OL T

AG

E

TR3

CO

M

230V

460V

OR

575V

OR

RD

LIN

EV

OLT

AG

E

OR

BK

RD

BK B

K RD

OR

BK

RD

RD

RD

BK

OR

OR

RD

RD

OR

OR

OR

OR

RD

BK

BK

L3

RD

OR

BK

RD

OR

OR

BL

BK

BL

BL

BL

BK

RD

L2L1

RD

OR

BKO

R

RD

BKB

K

BK

H

IGH

VO

LTA

GE

L

OW

VO

LTA

GE

OR

PO

WE

R &

CO

NTR

OL

WIR

ING

DIA

GR

AM

DC

G(1

20-1

50) *

**(4

,7)V

DD

C

RD

WH

BR

BL

BL

BL

BL B

L

RD

RD

BC

2

T3L3

T1T2

L1L2

BLO

WE

R C

ON

TAC

TOR

BC

CO

MP

RE

SS

OR

CO

NTA

CTO

R

CO

MP

RE

SS

OR

EC

ON

OM

IZE

R

HIG

H P

RE

SS

UR

E S

WIT

CH

PO

WE

R D

ISTR

IBU

TIO

N B

LOC

KFE

MA

LE P

LUG

/CO

NN

ECTO

R

TER

MIN

AL

BLO

CK

(24V

SIG

NA

L)

CC

CO

MP

EC

ON

HP

S

PB

PLF

TB

CO

MPO

NENT

LEG

END

CIR

CU

IT B

RE

AK

ER

CB

TRGN

D

BC

SB

LOW

ER

CU

RR

ENT

SW

ITC

HB

MB

LOW

ER

MO

TOR

CFS

CLO

GG

ED F

ILTE

R S

WIT

CH

CF

CO

ND

ENS

ER

FA

N

DA

TD

ISC

HAR

GE

AIR

TE

MP

ER

ATU

RE

SE

NSO

RD

DC

DIR

EC

T D

IGIT

AL

CO

NTR

OL

CO

2C

AR

BON

DIO

XID

E S

EN

SOR

FCFA

N C

AP

AC

ITO

R

EQ

UIP

ME

NT

GR

OU

ND

GV

GA

S V

ALV

E

EXF

EXH

AU

ST

FAN

IAH

IND

OO

R A

IR H

UM

IDIT

Y S

EN

SO

R

LOW

PR

ES

SU

RE

SW

ITC

HLP

S

RS

SR

EM

OTE

STA

RT/

STO

P

OA

TO

UTD

OO

R A

IR T

EM

PE

RA

TUR

E S

EN

SO

RO

AH

OU

TDO

OR

AIR

HU

MID

ITY

SE

NS

OR

LDS

LOA

D S

HE

DD

ING

SP

CTE

MP

SP

AC

E T

EM

PE

RA

TUR

E S

EN

SOR

TRA

NS

FOR

ME

R

ALR

MA

LAR

M

HG

RH

HO

T G

AS

RE

HE

AT

SM

KS

MO

KE

DE

TEC

TOR

NO

TES

:

1. R

EPL

AC

EM

EN

T W

IRE

MU

ST

BE

SA

ME

SIZ

E A

ND

TY

PE

OF

INS

ULA

TIO

N A

S O

RIG

INA

L (A

T LE

AST

105�

C).

U

SE

CO

PPE

R C

ON

DU

CTO

RS

ON

LY.

U

SE

N.E

.C. C

LASS

2 W

IRE

FO

R A

LL L

OW

VO

LTA

GE

F

IELD

CO

NN

EC

TIO

NS

.

I

F O

PTI

ON

AL

SM

OK

E D

ETE

CTO

R IS

INS

TALL

ED

,

RE

MO

VE

RE

D J

UM

PE

R W

IRE

CO

NN

EC

TIO

NS

T

B1-

XS T

O T

B1-

ES

.

D

ISC

HA

RG

E A

IR T

EM

PE

RA

TUR

E S

EN

SO

R S

HIP

PED

W

ITH

UN

IT IN

CO

NTR

OL

BO

X. I

NS

TALL

AN

D C

ON

NE

CT

P

ER

TH

E A

TTA

CH

ED

INS

TRU

CTI

ON

S/W

IRIN

G D

IAG

RA

M.

I

F O

PTI

ON

AL

EC

ON

OM

IZE

R IS

INS

TALL

ED

, CO

NN

EC

T

EC

ON

PLF

TO

EC

ON

OM

IZE

R.

EC

ON

OM

IZE

R P

LUG

LO

CA

TED

I

N T

HE

RE

TUR

N A

IR C

OM

PA

RTM

EN

T.

R

ED

/BLA

CK

WIR

ES

CO

NN

EC

TED

TO

AP

PR

OP

RIA

TE H

IGH

V

OLT

AG

E (4

60V

OR

575

V) I

NP

UT

TER

MIN

AL

ON

PR

IMA

RY

S

IDE

OF

TR1.

2 3 4 5

ALS

AU

XILI

AR

Y LI

MIT

SW

ITC

H

IICIN

TIG

RA

TED

IGN

ITIO

N C

ON

TRO

LLS

LIM

IT S

WIT

CH

PS

PR

ES

SU

RE

SW

ITC

HR

SR

OLL

-OU

T S

WIT

CH

FSFL

AM

E S

EN

SE

VM

VE

NT

MO

TOR

VM

RV

EN

T M

OTO

R R

ELA

Y

BR

OR

BK

BR

BK

BL

BL

BR

BR

BR

BR

BK

BM

BL

BL

BL

RD

YLY

L

GY YL

BK

BK

BK

OR BK

BL

T1L1

CB

1(H

I SP

D) T2

L2

T3L3

BK

RD

OR

T1L1

CB

2(L

O S

PD

) T2L2

T3L3

BL

GY

OR

RD

BK

BK

OR

OR R

D

BKR

D

YL

YL

(SU

PPL

Y A

IR T

MP

)

(RM

T S

TRT/

STP

)

(MO

D H

GR

H)

(SP

C H

UM

)

(CO

MP

PR

ES

S 1

)

(BLO

WE

R S

TAG

E 1

)

(CO

MP

PR

ESS

2)

(BLO

WE

R S

TAG

E 2

)

(SP

C S

LID

E A

DJ)

DCG 120*/ 150* 460, 575 / 3 / 60 2SPWIRING DIAGRAMS

49

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

FC1

10

T3L3

T1T2

L1L2C

OM

P1

CF1

BR

BK

BK

BC

1CC

1

RDYL BK

014

0L05

773-

A

BR

T3L3

T1T2

L1L2

CF2

BRPU

PU

FC2

BR

T3L3

T1T2

L1L2

CC

2

YL RD BK

RD

CO

MP

2

BL

BL

RD

T1

T2

T3T3

T2

T1

BL

BKBK

PU

PU

RD

RD

RD

BK

BL

BK

BL

PU

BK

BK

XS(C

LASS

2)

BK

DA

BC

S

OA

T

ES

PS

C STB

1T 1

24VA

C

CFS

RS

S

LDS

CO

2

T 2T 3

T 4T 5

S MK/

E MG

2

BK

PK

PK

GY

BL/

PK

BL/

PK

GY

LPS

1

HP

S2

YL

HP

S1

LPS

2

PU

BL/

PK

BL/

PKYL

/PK

YL/P

K

YL/P

K

YL/P

K

PK

BK

BK

YL

PU

YL

GN

D24

VA

COA

HVO

UT

(DC

)

GN

D24

VA

C (C

OM

)24

VA

C

VO

UT

(DC

)

VO

UT

DC

24 V

ACIAH G

ND

BI8

BI5

121110

1

CO

M3-

8R

LY8

BI1

BI2

BI3

BI4

BI7 GN

D

24VA

C

BR

RD

CO

M3-

8

RLY

7R

LY6

RLY

5R

LY4

RLY

3

CO

M1

BL

PU

PU

(OAT

)

(CFS

)

(EM

ER

)(F

AN

PR

OV

)(HE

AT

2)(H

EA

T 1)

YL

BI6

(SH

ED

)

RLY

1R

LY2

CO

M2

(24V

IN)

(EC

ON

PW

R)

(EXF

)(A

LRM

)

(EC

ON

DM

PR

)

(OA

H)

(ISO

L G

ND

)

(SP

C T

MP

)(C

O2)

2345678 12

1 2 3 4 5 6 7 8 9

DD

C (

CLA

SS

2)

(EC

ON

FB

)

C

GR

(CLA

SS2)

TB2

DA

T -t�

(CO

MP

2 O

UT)

(CO

MP

1 O

UT)

(CO

MP

1 IN

)

(CO

MP

2 IN

)

YL YL

2121

HTR

PLF

1H

TR P

LM1

EC

ON

654321 A

O1

AO

2 A

O3

AO

4G

ND

GN

D

WH

AG

SP

CTE

MP TE

MP

GN

DST

PT

OFF

SE

T

GR

BR

BR

BK

BK

PU

PU

GR

GRBR

BR

BR

GR

BR

BR

GR

RD

RD

RD

BL

BL

BL

BL

PU

PKPK

PU

YL

BK

RD

BK

BK

BK

BL /

PK

BL/

PK

PU

PU YL

PU

PU

RD

YL

PU

BRYL

WH

PK

WH

WH

PK

WH

BR

ALR

M-

+

EXF

-+

GR

GR

8 7 6 5 4 3 2 19 A

I3

AI8

AI7

AI6

AI5

AI4

AI1

AI2

AG

ND

AG

ND

10

GR

WH

WH

PU

BK

PU

PK

PLF

WH

BL

BL

TR1

5

RD

RD

PB

GN

D

BK

RD

OR

BL

PU

4

BK

YL

RD

GR

GR

EEN

WIR

E C

OD

E

BL

BLU

E

PU

PU

RP

LEP

K

P

INK

WH

WH

ITE

BK

B

LAC

K

RD

RE

D

BR

BR

OW

N

OR

OR

AN

GE

YL

Y

ELL

OW

GY

GR

AY

-t�

3

BA

C N

ET3

T-21

(BA

CN

ET)

R+

SH

BLO

WE

R C

ON

TAC

TOR

BC

CO

MP

RE

SS

OR

CO

NTA

CTO

R

CO

MP

RE

SS

OR

EC

ON

OM

IZE

R

HIG

H P

RE

SS

UR

E S

WIT

CH

PO

WE

R D

ISTR

IBU

TIO

N B

LOC

KFE

MA

LE P

LUG

/CO

NN

EC

TOR

TER

MIN

AL

BLO

CK

(24V

SIG

NA

L)

CC

CO

MP

EC

ON

HP

S

PB

PLF

TB

COM

PON

ENT

LEG

END

CIR

CU

IT B

RE

AK

ER

CB

TRGN

D

BC

SB

LOW

ER

CU

RR

EN

T S

WIT

CH

BM

BLO

WE

R M

OTO

R

CFS

CLO

GG

ED

FIL

TER

SW

ITC

HC

FC

ON

DEN

SE

R F

AN

DA

TD

ISC

HAR

GE

AIR

TE

MP

ER

ATU

RE

SE

NS

OR

DD

CD

IRE

CT

DIG

ITA

L C

ON

TRO

L

CO

2C

AR

BO

N D

IOXI

DE

SE

NS

OR

FCFA

N C

AP

AC

ITO

R

EQ

UIP

ME

NT

GR

OU

ND

GV

GA

S V

ALV

E

EXF

EXH

AU

ST

FAN

IAH

IND

OO

R A

IR H

UM

IDIT

Y S

EN

SO

R

LOW

PR

ES

SU

RE

SW

ITC

HLP

S

RS

SR

EM

OTE

STA

RT/

STO

P

OA

TO

UTD

OO

R A

IR T

EM

PE

RA

TUR

E S

EN

SO

RO

AH

OU

TDO

OR

AIR

HU

MID

ITY

SE

NS

OR

LDS

LOA

D S

HE

DD

ING

SP

CTE

MP

SP

AC

E T

EM

PE

RAT

UR

E S

EN

SO

R

TRA

NS

FOR

ME

R

YL/P

K Y

ELL

OW

WIT

H

P

INK

STR

IPE

BL/

PK

BLU

E W

ITH

PIN

K S

TRIP

E

+-

HG

RH

BL

BR

OR

BK

ALR

MA

LAR

M

HG

RH

HO

T G

AS

RE

HE

AT

SM

KS

MO

KE

DE

TEC

TOR

BL

BL

PU

PU

GR

GR

BK

BK

BK

GR

L1 L2 L3

LIN

E V

OLT

AG

E

BL

BL

BL

BL

BL

RD

IIC

PS

ALS

LS

RS

1ST

STG

CO

M

GV

FS

VM

R

RD

RD

RD

3A

24 V

AC

PW

R1 2 3 4 5 6 8

24 V

AC

CO

MG

V O

UT

TMP

LMT

OU

TTM

P LM

T IN

PR

ESS

SW

INP

RES

S S

W O

UT

HE

AT IN

FLA

ME

SEN

SE

IGN

ITO

R

PU

PU

24 V

AC

PW

RL1 L1

RD

RD

RD

YL

L2 L2 L2 L2

BL

PK

YL

PU

BL

BR GY

GY

BL

D1

BL

PK

PK

PK

BL

PU

BL

2ND

STG

24 V

AC

CO

M

VE

NT

MTR

F1 F1

HE

ATBKPKW

HYL

65

43

21

BR

WH

WH

BL

BL

BL

GY

YL

BL

BL

BK

WH

BK

BR

WH

BK

BR

BR

BR

BR

BR

BR

BR

BR

WH

BR

BR

WH

BR

WH

WH

BK

BK

BK

BK

BK

BK

WH

WH

BK

BK

PU

BK

PK

PK

PK

H

IGH

VO

LTA

GE

FIEL

D W

IRIN

G

L

OW

VO

LTA

GE

FAC

TORY

WIR

ING

OP

TIO

NAL

LO

W V

OLT

AG

E

PK

RD

RD

RD

PK

PK

BL

RD

VMW

H3

1V

MR

OR

ALS

AU

XILI

AR

Y L

IMIT

SW

ITC

H

IICIN

TIG

RA

TED

IGN

ITIO

N C

ON

TRO

LLS

LIM

IT S

WIT

CH

PS

PR

ES

SU

RE

SW

ITC

HR

SR

OLL

-OU

T S

WIT

CH

FSFL

AM

E S

EN

SE

VM

VE

NT

MO

TOR

VM

RV

EN

T M

OTO

R R

ELA

Y

IIC

UN

US

ED

BR

BR

BR

WH

BL

24V

CN

TLV

OLT

AG

E

OR

RD

LIN

EV

OLT

AG

E

OR

BK

RD

BK BK

RD

OR

BK

RD

RD

BK

OR

OR

RD

RD

OR

OR

RD

L3

OR

RD

OR

BL

BL

BK

RD

L2L1

RD

RD

RD

BK

BK

H

IGH

VO

LTA

GE

L

OW

VO

LTAG

E

OR

PO

WE

R &

CO

NTR

OL

WIR

ING

DIA

GR

AM

DC

G(0

90-1

02) *

**(3

)VD

DC

RD

BK

WH

BR

RD

OR

RD

6

6

BL

NO

TES

:

1. R

EPLA

CEM

EN

T W

IRE

MU

ST B

E SA

ME

SIZE

AN

D T

YPE

O

F IN

SU

LATI

ON

AS

OR

IGIN

AL (A

T LE

AST

105�

C).

U

SE C

OP

PER

CO

ND

UC

TOR

S O

NLY

.

USE

N.E

.C. C

LAS

S 2

WIR

E FO

R A

LL L

OW

VO

LTAG

E

FIE

LD C

ON

NE

CTI

ON

S.

I

F O

PTIO

NAL

SM

OKE

DET

EC

TOR

IS IN

STA

LLE

D,

R

EMO

VE R

ED

JU

MPE

R W

IRE

CO

NN

EC

TIO

NS

T

B1-

XS T

O T

B1-

ES.

D

ISC

HA

RG

E A

IR T

EM

PER

ATU

RE

SE

NSO

R S

HIP

PE

D

WIT

H U

NIT

IN C

ON

TRO

L BO

X. I

NST

ALL

AN

D C

ON

NE

CT

P

ER

TH

E A

TTA

CH

ED

INST

RU

CTI

ON

S/W

IRIN

G D

IAG

RAM

.

I

F O

PTIO

NAL

EC

ON

OM

IZE

R IS

INST

ALL

ED

, CO

NN

EC

T

EC

ON

PLF

TO

EC

ON

OM

IZE

R.

EC

ON

OM

IZE

R P

LUG

LO

CAT

ED

I

N T

HE

RET

UR

N A

IR C

OM

PA

RTM

EN

T.

T

R1

PR

IMA

RY

(HIG

H V

OLT

AG

E) C

ON

NE

CTI

ON

S: R

ED

WIR

E

CO

NN

EC

TED

TO

240

V T

AP

AT

THE

FA

CTO

RY.

FOR

208

V

SU

PPLY

PO

WE

R, M

OV

E R

ED

WIR

E FR

OM

240

V T

AP

TO T

HE

2

08V

TA

P.

V

M W

IRE

D F

OR

230

V S

UPP

LY P

OW

ER

. FO

R 2

08V

SU

PPLY

P

OW

ER

, DIS

CO

NN

EC

T TH

E R

ED

VM

WIR

E FR

OM

CC

1-L2

T

ER

MIN

AL. C

ON

NE

CT

THE

RE

D W

IRE

REM

OV

ED

FR

OM

CC

1-L2

T

O II

CU

NU

SE

D T

ER

MIN

AL, T

HE

N D

ISC

ON

NE

CT

BLA

CK

WIR

E

FR

OM

IIC

-UN

US

ED

AN

D C

ON

NE

CT

TO C

C1-

L1.

2 3 4 5 6

BK

BR

RD

WH

T3L3

T1T2

L1L2

BL

BL

BL B

L

RD

RD

BC

2B

R

BR

BL

BL

BL

BK

BM

GY BL

YL

BL

BL

RD

YLYL

YLO

R

RD BK

GY

YLBL

BK

BK

BK

OR BK

BL

OR

RD

BK

BK

RD

BK

RD

OR OR

RD

OR

BR

BR

BL

OR

(SU

PPL

Y A

IR T

MP

)

(RM

T ST

RT/

STP

)

(MO

D H

GR

H)

(SP

C H

UM

)

(CO

MP

PR

ESS

1)

(BLO

WE

R S

TAG

E 1

)

(CO

MP

PR

ESS

2)

(BLO

WE

R S

TAG

E 2)

(SP

C S

LID

E A

DJ)

OPT

ION

AL A

CCE

SSO

RIES

OR

FIE

LD S

UPP

LIED

CO

MPO

NEN

TS

DCG 090* / 102* 208-230 / 3 / 60 2SPWIRING DIAGRAMS

50

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

HIG

H V

OLT

AG

E!

DIS

CO

NN

ECT

ALL

PO

WE

R B

EFO

RE

SER

VIC

ING

OR

INS

TALL

ING

TH

ISU

NIT

. M

ULT

IPLE

PO

WER

SO

UR

CES

MAY

BE

PR

ESEN

T. F

AIL

UR

E TO

DO

SO

MAY

CA

US

E PR

OP

ERTY

DA

MA

GE,

PER

SON

AL

INJU

RY

OR

DE

ATH

.

FC1

10

T3L3

T1T2

L1L2C

OM

P1

CF1

BR

BK

BK

BC

1CC

1

RDYL

BK

014

0L05

774-

A

BR

T3L3

T1T2

L1L2

CF2

BRPU

PU

FC2

BR

T3L3

T1T2

L1L2

CC

2

YL

RD BK

RD

CO

MP

2

BL

BL

RD

T1

T2

T3T3

T2

T1

BL

BK

BK

PU

PU

RD

RD

RD

BK

BL

BK

BL

PU

BK

BK

XS(C

LAS

S2)

BK

DA

BC

S

OA

T

ES

PS

C STB

1T 1

24V

AC

CFS

RS

S

LDS

CO

2

T 2T 3

T 4T 5

SM

K/E

MG

2

BK

PK

PK

GY

BL/

PK

BL/

PK

GY

LPS

1

HP

S2

YL

HP

S1

LPS

2

PU

BL/

PK

BL/

PK

YL/

PK

YL/

PK

YL/

PK

YL/

PK

PK

BK

BK

YL

PU

YL

GN

D24

VA

COA

HVO

UT

(DC

)

GN

D24

VA

C (C

OM

)24

VA

C

VOU

T (D

C)

VOU

T D

C

24 V

ACIAH G

ND

BI8

BI5

121110

1

CO

M3-

8R

LY8

BI1

BI2

BI3

BI4

BI7 GN

D

24V

AC

BR

RD

CO

M3-

8

RLY

7R

LY6

RLY

5R

LY4

RLY

3

CO

M1

BL

PU

PU

(SU

PP

LY A

IR T

MP)

(OA

T)

(CFS

)

(EM

ER)

(FA

N P

RO

V)

(RM

T S

TRT/

STP

)

(HE

AT

2)(H

EA

T 1)

YL

BI6

(SH

ED)

RLY

1R

LY2

CO

M2

(24V

IN)

(EC

ON

PW

R)

(MO

D H

GR

H)

(EXF

)(A

LRM

)

(EC

ON

DM

PR)

(OAH

)

(ISO

L G

ND

)

(SP

C T

MP)

(CO

2)

2345678 12

1 2 3 4 5 6 7 8 9

DD

C (

CLA

SS

2)

(SP

C H

UM

)

(EC

ON

FB)

(CO

MP

PR

ES

S 1

)

C

GR

(CLA

SS

2)TB

2

DA

T -t�

(CO

MP

2 O

UT)

(CO

MP

1 O

UT)

(CO

MP

1 IN

)

(CO

MP

2 IN

)

YL YL

2121

HTR

PLF

1H

TR P

LM1

EC

ON

654321 A

O1

AO

2 A

O3

AO

4G

ND

GN

D

WH

AG

SP

CTE

MP TE

MP

GN

DS

TPT

OFF

SE

T

GR

BR

BR

BK

BK

PU

PU

GR

GRBR

BR

BR

GR

BR

BR

GR

RD

RD

RD

BL

BL

BL

BL

PU

PKPK

PU

YL

BK

RD

BK

BK

BK

BL/

PK

BL/

PK

PU

PU YL

PU

PU

RD

YL

PU

BRYL

WH

PK

WH

WH

PK

WH

BR

ALR

M-

+

EXF

-+

GR

GR

8 7 6 5 4 3 2 19 A

I3

AI8

AI7

AI6

AI5

AI4

AI1

AI2

AG

ND

AG

ND

10

GR

WH

WH

PU

BK

PU

PK

PLF

WH

BL

BL

TR1

5

RD

RD

PB

GN

D

BK

RD

OR

BL

PU

4

BK

YL

RD

GR

GR

EE

N

WIR

E C

OD

E

BL

BLU

E

PU

PU

RP

LEP

K

P

INK

WH

WH

ITE

BK

BLA

CK

RD

RE

D

BR

BR

OW

N

OR

OR

AN

GE

YL

YE

LLO

W

GY

GR

AY

-t�

3

BA

C N

ET

3T-

21(B

AC

NET

)R

+S

H

BLO

WE

R C

ON

TAC

TOR

BC

CO

MPR

ES

SO

R C

ON

TAC

TOR

CO

MP

RE

SSO

R

EC

ON

OM

IZE

R

HIG

H P

RE

SSU

RE

SW

ITC

H

PO

WER

DIS

TRIB

UTI

ON

BLO

CK

FEM

ALE

PLU

G/C

ON

NE

CTO

R

TER

MIN

AL

BLO

CK

(24V

SIG

NA

L)

CC

CO

MP

EC

ON

HP

S

PB

PLF

TB

CO

MPO

NEN

T LE

GEN

D

CIR

CU

IT B

RE

AKER

CB

TRGN

D

BCS

BLO

WE

R C

UR

REN

T S

WIT

CH

BM

BLO

WE

R M

OTO

R

CFS

CLO

GG

ED F

ILTE

R S

WIT

CH

CF

CO

ND

EN

SER

FA

N

DA

TD

ISC

HA

RG

E A

IR T

EM

PER

ATU

RE

SE

NS

OR

DD

CD

IRE

CT

DIG

ITA

L C

ON

TRO

L

CO

2C

AR

BO

N D

IOXI

DE

SEN

SO

R

FCFA

N C

AP

ACIT

OR

EQ

UIP

MEN

T G

RO

UN

DG

VG

AS

VA

LVE

EXF

EXH

AUS

T FA

N

IAH

IND

OO

R A

IR H

UM

IDIT

Y S

ENS

OR

LOW

PR

ESS

UR

E S

WIT

CH

LPS

RS

SR

EM

OTE

STA

RT/

STO

P

OAT

OU

TDO

OR

AIR

TE

MP

ERA

TUR

E S

ENS

OR

OAH

OU

TDO

OR

AIR

HU

MID

ITY

SEN

SO

R

LDS

LOA

D S

HED

DIN

G

SPC

TEM

PS

PAC

E T

EM

PER

ATU

RE

SEN

SO

R

TRA

NSF

OR

MER

YL/

PK

Y

ELL

OW

WIT

H

P

INK

STR

IPE

BL/

PK

B

LUE

WIT

H

P

INK

STR

IPE

+-

HG

RH

BL

BR

OR

BK

ALR

MA

LAR

M

HG

RH

HO

T G

AS

RE

HE

AT

SM

KS

MO

KE D

ETE

CTO

R

BL

BL

PU

PU

GR

GR

BK

BK

BK

GR

L1 L2 L3

LIN

E V

OLT

AG

E

BL

BL

BL

BL

BL

RD

IIC

PS

ALS

LS

RS

1ST

STG

CO

M

GV

FS

VM

R

RD

RD

RD

3A

24 V

AC

PW

R1 2 3 4 5 6 8

24 V

AC

CO

MG

V O

UT

TMP

LM

T O

UT

TMP

LM

T IN

PR

ES

S S

W IN

PR

ES

S S

W O

UT

HE

AT

INFL

AM

E S

EN

SE

IGN

ITO

R

PU

PU

24 V

AC

PW

RL1 L1

RD

RD

RD

YL

L2 L2 L2 L2

BL

PK

YL

PU

BL

BR GY

GY

BL

D1

BL

PK

PK

PK

BL

PU

BL

2ND

STG

24 V

AC

CO

M

VE

NT

MTR

F1 F1

HE

AT

BK

PK

WH

YL

65

43

21

BR

WH

WH

BL

BL

BL

GY

YL

BL

BL

BK

WH

BK

BR

WH

BK

BR

BR

BR

BR

BR

BR

BR

BR

WH

BR

BR

WH

BR

WH

WH

BK

BK

BK

BK

BK

BK

WH

WH

BK

BK

PU

BK

PK

PK

PK

H

IGH

VO

LTA

GE

FIEL

D W

IRIN

G

L

OW

VO

LTA

GE

FAC

TORY

WIR

ING

OP

TIO

NA

L L

OW

VO

LTA

GE

PKR

D

RD

RD

PK

PK

BL

RD

VM

WH

31

VM

R

OR

ALS

AUXI

LIA

RY

LIM

IT S

WIT

CH

IICIN

TIG

RA

TED

IGN

ITIO

N C

ON

TRO

LLS

LIM

IT S

WIT

CH

PS

PR

ESS

UR

E S

WIT

CH

RS

RO

LL-O

UT

SW

ITC

H

FSFL

AM

E S

ENS

E

VM

VEN

T M

OTO

RV

MR

VEN

T M

OTO

R R

ELA

Y

IIC

UN

USE

D

BR

BR

BR

WH

BL

24V

CN

TLV

OLT

AG

E

OR

RD

LIN

EV

OLT

AG

E

OR

BK

RD

BK B

K RD

OR

BK

RD

RD

BK

OR

OR

RD

RD

OR

OR

RD

L3

OR

RD

OR

BL

BL

BK

RD

L2L1

RD

RD

RD

BK

BK

H

IGH

VO

LTA

GE

L

OW

VO

LTA

GE

OR

PO

WE

R &

CO

NTR

OL

WIR

ING

DIA

GR

AMD

CG

(120

-150

) ***

(3)V

DD

C

RD

BK

WH

BR

RD

OR

RD

6

6

BL

NO

TES:

1. R

EP

LAC

EM

ENT

WIR

E M

US

T B

E S

AM

E S

IZE

AN

D T

YP

E

OF

INS

ULA

TIO

N A

S O

RIG

INA

L (A

T LE

AS

T 10

5� C

).

US

E C

OP

PE

R C

ON

DU

CTO

RS

ON

LY.

U

SE

N.E

.C. C

LAS

S 2

WIR

E F

OR

ALL

LO

W V

OLT

AG

E

FIE

LD C

ON

NE

CTI

ON

S.

I

F O

PTI

ON

AL

SM

OK

E D

ETE

CTO

R IS

INS

TALL

ED

,

RE

MO

VE

RE

D J

UM

PE

R W

IRE

CO

NN

EC

TIO

NS

T

B1-

XS T

O T

B1-

ES

.

D

ISC

HA

RG

E A

IR T

EM

PER

ATU

RE

SE

NS

OR

SH

IPP

ED

W

ITH

UN

IT IN

CO

NTR

OL

BO

X. I

NS

TALL

AN

D C

ON

NE

CT

P

ER

TH

E A

TTA

CH

ED

INS

TRU

CTI

ON

S/W

IRIN

G D

IAG

RAM

.

I

F O

PTI

ON

AL

EC

ON

OM

IZE

R IS

INS

TALL

ED

, CO

NN

EC

T

EC

ON

PLF

TO

EC

ON

OM

IZE

R.

EC

ON

OM

IZE

R P

LUG

LO

CA

TED

I

N T

HE

RE

TUR

N A

IR C

OM

PA

RTM

EN

T.

T

R1

PR

IMAR

Y (H

IGH

VO

LTA

GE

) CO

NN

EC

TIO

NS

: RE

D W

IRE

C

ON

NE

CTE

D T

O 2

40V

TA

P A

T TH

E F

AC

TOR

Y.F

OR

208

V

SU

PP

LY P

OW

ER

, MO

VE

RE

D W

IRE

FR

OM

240

V T

AP

TO

TH

E

208

V T

AP

.

V

M W

IRE

D F

OR

230

V S

UP

PLY

PO

WE

R. F

OR

208

V S

UP

PLY

P

OW

ER

, DIS

CO

NN

EC

T TH

E R

ED

VM

WIR

E F

RO

M C

C1-

L2

TE

RM

INA

L. C

ON

NE

CT

THE

RE

D W

IRE

RE

MO

VE

D F

RO

M C

C1-

L2

TO

IIC

UN

US

ED

TE

RM

INA

L, T

HE

N D

ISC

ON

NE

CT

BLA

CK

WIR

E

FR

OM

IIC

-UN

US

ED

AN

D C

ON

NE

CT

TO C

C1-

L1.

2 3 4 5 6

BK

BR

RD

WH

T3L3

T1T2

L1L2

BL

BL

BL B

L

RD

RD

BC

2B

RB

R

BL

BL BL

BK

BM

BL

BL

BL

RD

YL

GY

YL

BK

OR BK

BL

OR

RD

BK

BK

RD

BKR

D

OR

OR

RD

OR

BR

BR

BL

OR

T1L1

CB

1(H

I SPD

) T2L2

T3L3

OR

RD BK

T1L1

CB

2(L

O S

PD

) T2L2

T3L3

BL

GY YL

YL

YL B

KB

K

(BLO

WE

R S

TAG

E 1

)

(CO

MP

PR

ES

S 2

)

(BLO

WE

R S

TAG

E 2

)

(SP

C S

LID

E A

DJ)

OPT

ION

AL A

CC

ESSO

RIE

S O

R F

IELD

SU

PPLI

EDC

OM

PON

ENTS

DCG 120* / 150* 208-230 / 3 / 60 2SPWIRING DIAGRAMS

51

Start-up Checklist*Store in job file

Pre Start-Up(Check each item as completed)

Verify all packaging material has been removed.

Remove all shipping brackets per installation instructions.

Verify the job site voltage agrees with the unit serial plate.

Verify condensate connection is installed per installation instructions.

Verify proper clearance around the unit for safety, service, maintenance and proper unit operation.

Verify proper weatherproofing of all ductwork, roof curbs and electrical connections.

Check that the flue screen is in place.

Check gas piping for leaks.

Verify gas pressure to the unit is within the range specified on the serial plate.

Check to ensure that all fans, pulleys and wheels are secure.

Check for proper belt tension and alignment per installation instructions.

Check refrigerant piping for rubbing and leaks. Repair if necessary.

Check unit wiring to ensure it is not in contact with refrigerant piping or sharp metal edges.

Check all electrical connections and terminals. Tighten as needed.

Verify that the crankcase heaters have been energized for 24 hours.

Verify the scroll compressor(s) are rotating in the right direction.

Verify all accessories are installed and operating correctly.

Check filters and replace if necessary.

Verify the installation of the thermostat.

9/2014

Date: ___________________________________

Model Number: ___________________________________

Serial Number: ___________________________________

Technician: ___________________________________

Location: __________________________________________

__________________________________________

__________________________________________

Unit #: __________________________________________

52

Start-up Checklist

L1 - L2 L2 - L3 L3 - L1

L1 L2 L3

L1 L2 L3

L1 L2 L3

Fan 1 Fan 2 Fan 3

IN. W.C.

IN. W.C.

IN. W.C.

RPM

DB WB

DB WB

DB WB

DB

IN. W.C.

IN. W.C. (Low Fire) IN. W.C. (High Fire)

PSIG °F

°F

PSIG °F

°F

PSIG °F

°F

PSIG °F

°F

PSIG °F

PSIG °F

PSIG °F

PSIG °F

BLOWER EXTERNAL STATIC PRESSURE

Return Air Static Pressure

Supply Air Static Pressure

Supply Voltage

Circuit 1 Compressor Amps

Circuit 2 Compressor Amps

Blower Amps

Condenser Fan Amps

ELECTRICAL

Total External Static Pressure

Blower Wheel RPM

TEMPERATURES

Outdoor Air Temperature

Return Air Temperature

Cooling Supply Air Temperature

Discharge Circuit 1

Heating Supply Air Temperature

PRESSURES

Gas Inlet Pressure

Gas Manifold Pressure

Suction Circuit 1

Suction Circuit 2

Discharge Circuit 2

Superheat (Orifice System)

Superheat (Orifice System)

Subcooling (TXV System)

Subcooling (TXV System)

Discharge Circuit 1

Discharge Circuit 2

(HEAT PUMP ONLY)

Suction Circuit 1

Suction Circuit 2

Start-Up(Insert the values as each item is completed.)