air cooled condensing units - s.k.m air con · ed osy el ncl c m m. sai l s e toor toor r ar t oten...

AIR CONDITIONING EQUIPMENT

SKM Air Cooled Condensing UnitsACUV-N Series - R-134a


1

ACUV-N Series Air Cooled Condensing Units

Sharjah Economic Excellence Award winnerwww.skmaircon.comfacebook.com/skmaircon @skmaircon

R-134a

Range 101 TR to 334 TR (354 kW to 1174 kW)


2

Introduction

ACUV-N Series environment friendly (R-134a) Air Cooled Screw condensing unit are the latest innovation of SKM, designed and manufactured to provide utmost performance, efficiency, reliability, to meet the requirements and long life from Gulf’s severe climatic condition.

SKM ACUV-N units are manufactured to meet the requirements of the gulf severe climatic conditions.

SKM ACUV-N Air Cooled Condensing unit are ideal for warehouses, large halls, schools, mosques, or wherever the requirement calls for a heavy duty unit with screw semi-hermetic compressor.

ACUV-N series Air Cooled Condensing unit ( Semi-Hermetic Screw ) are available in 30 models covering nominal capacity ranges from 101 TR - 334 TR (354 kW to 1174 kW) in 50Hz and 60Hz.

SKM ACUV-N Air Cooled Condensing unit are rated in accordance with AHRI-365.

SKM ACUV-N series Air Cooled Condensing units are used for commercial and industrial applications where high efficient condensing units are needed to match an indoor central station AHUs or coils to get maximum performance advantages of split sytem with reasonable initial cost.

SKM ACUV-N series provide efficient operation, wide range of design flexibility coupled with packaged concept requiring least on-site work.

SKM provides qualified service and stock of replacement parts in all major cities of the G.C.C. countries, Egypt, Jordan, and Pakistan. See back cover for details or call SKM.

SKM Air Conditioning LLC

You name it.....We cool it

The following abbreviations are used throughout this manual:

BPF..... By-pass Factorcfm ..... Cubic feet per minuteEER .... Energy Efficiency RatioHz ....... Hertzinwg .... Inches of water gaugekW ...... Kilowattskg ......... kilogramlbs ........ Pounds weight ( British units )L/S ...... Liters per second

MBh.... BTUH x 1000Ph ....... PhasePa ....... PascalsPD ....... Pressure DropPI ......... Power InputRPM........Revolutions per MinuteTR ....... Tons of Refrigeration = 12 MBh V .......... Volt

Legend

ACU V - 5 2 100 N Y

Air Cooled Condensing Unit

Power Supply 5 : 50Hz

Nominal Capacity (TR)

Nomenclature

Semi hermetic Screw Compressor (R-134a)

Frequency 6 : 60Hz

V-Series

No. of Refrigerant Circuits

Power Supply CodeY: 380V-415V/3Ph/50HzP: 440V/3Ph/50HzR: 380V/3Ph/60HzE: 460V/3Ph/60HzT: 220V/3Ph/60Hz

ContentsIntroduction ....................................... 2Legend.............................................. 2Nomenclature ................................... 2General Features.............................. 3Component Features ........................ 3Control Panel .................................... 5Microprocessor Controller..................5Optional Features ............................. 6Engineering Specification .............. 8-9Capacity Ratings ....................... 10-13Selection Procedure ....................... 14

Field Connections............................15Field Wiring Requirement Schematic..15Typical Wiring Diagram................... 16Electrical Data ........................... 17-19Dimensional Data ...................... 20-21Loading Points ................................ 22Recommendations.......................... 23Typical Refrigerant Piping............... 24Recommended Line Sizes.............. 25Guide Specification.................... 27-28

SKM reserves the right to change, in part or in whole the specifications of its Air Conditioning Equipment at any time in order to add the latest technology. Therefore, the enclosed information may change without any prior notice.




3

Condensers

Condenser coils are manufactured of seamless copper tubes mechanically bonded to aluminum fins to ensure optimum heat transfer.

All coils are tested against leakage by air pressure of 450 psig (3100 kPa) under water. All standard coils are 3 or 4 rows/14 FPI, 3/8” (9.5 mm) O.D. tubes. An integral subcooling circuit is provided to increase the cooling capacity, without additional operating cost.

For different application requirements, other optional condenser fin materials are available:

• Copper fins.• Electrotinned Copper Fins.• Copper finned coils with electro-tinned after manufacturing.• Precoated Aluminum fins The pre-coated is hydrophobic polyurethane resin. This

option provides substantial corrosion protection beyond standard coil construction.

• Aeris Guard Coil Coating The Aeris Guard Coil is a self etching high performance

modified epoxy finish that is specifically designed to coat and protect Aluminum and Copper surfaces. In addition, the coating is ideal for the protection of ferrous and non ferrous materials.

SKM ACUV-N series, all models, are restricted to a 14 FPI (1.8 mm) fin spacing condenser coil. Gulf dust storms and the general level of available maintenance in Gulf countries ensures this condenser coil design shall provide long life and maintenance-free operation with the least possibility of operational blockage on the condenser. Ample condenser surface and sensible air flow across the condenser ensures a low temperature differential between condensing temperature and the high Gulf ambients making the ACUV-N condensing units perform efficiently and durably.

General FeaturesThe ACUV-N series is a modern, diversified and environment friendly series of air cooled condensing unit which use R - 134a as refrigerant.

The complete ACUV-N condensing unit provides an extremely rugged, heavy duty, long-life and energy efficient that will provide higher efficiency over a long and extended life. What makes ACUV-N series the pride of SKM products is the use of :

• Semi Hermetic Screw, heavy duty, energy efficient compressors.

• Totally enclosed, Class F insulated, IP55 protected condenser fan motor.

• Heavy duty condenser optimised in design for long-life maintenance free operation.

• Cabinet construction specifically designed for Gulf climates.• IP 54 Electrical panel.• Factory installed, advanced and user friendly microprocessor

based control system.• Interface capability with major BMS protocols (option).

The SKM ACUV-N series air cooled condensing units are durable, dependable, strong, reliable, versatile, quiet and energy efficient. Wherever a heavy duty condensing unit is required, the ACUV-N series should be an automatic choice.

Condenser Coil

Component Features

Compressor

ACUV-N Series air cooled condensing unit uses high performance and high efficiency screw compressors which are double walled and robust in construction and have very few moving parts. The lubrication circuit is designed as is typical for the screw compressor in which oil is separated by a three stage oil separator and a long life filter (10 μm mesh size) is used. Oil sight glass, oil fill / drain service valve, insertion type oil heater with sleeve, discharge shut - off valve and suction gas filter are availabe as standard. Additional features are as follows :

• Bearings are generously dimensioned to provide long life operation. Main elements are the roller bearings for the radial forces combined with robust axial bearings arranged in tandem configuration.• Down to 50% capacity control and automatic start unloading

are provided as standard.• The compressor is protected by different devices and systems.

Protection devices include check valve in the discharge gas outlet and differential pressure relief valve. The protection system includes motor internal thermal protection, phase sequence protection for direction of rotation, oil temperature protection and manual reset button.


4

Condenser Fans

Condenser fans are propeller type, aluminium alloy blades, directly driven by electric motors. Motors are Totally Enclosed Air Over (TEAO) six pole with class ‘F’ insulation and minimum IP55 protection. The TEAO and class ‘F’ insulation features ensure long life and are unique for SKM.

The motors are factory wired, using wires specially selected for high ambients operation, to unit control panel where the motor contactors are located to control the operation of these motors. The condenser fans are individually statically and dynamically balanced at the factory.

Casing/StructureDesigned for ease of handling and low cost to install. The ACUV-N Air cooled condensing Units are factory assembled and mounted on a rigid base. The unit casing used in ACUV-N condensing units is made of zinc coated galvanized steel sheets conforming to JIS-G3302 and ASTM A653 which is phosphatized then baked after an electrostatic powder coat of approximately 60 microns.

This finish and coating pass a 1000 hours in 5 % salt spray testing at 95°F (35°C) and 95% relative humidity as per ASTM B117.

The entire assembly comes complete with lifting holes on the base frame for rigging and installation.

Options available include hot dipped galvanized base frame and structural members aluminium/stainless steel panels are available, on request, as options.

Refrigerant Charge

Condensing units are shipped with nitrogen holding charge only.

Piping connections

ACUV-N air Cooled Condensing units piping connections come, as standard, terminated with sealed and soldered copper pipe ends.

Normal installation would require the cutting off (using roller-type tube cutters) of the ends prior to connections being resoldered and connected to the field supplied refrigerant pipework.

Refrigerant Pipe work

SKM ACUV-N series Condensing units are provided with all internal piping, using ACR grade copper tubing, between compressor and condenser.

Loose supplied liquid line refrigerant controls are available as an option for field installation (Please specify CRSP). When this option is ordered, the unit will be supplied with a correctly sized electronic expansion valve, liquid line solenoid valve, liquid line sight glass/moisture indicator and filter drier having flared or soldered ends isolatable with one shut-off valve.

Shut-off valve for the other side of the filter drier can be supplied , if option CXFV is specified.

whether or not, these options are included, installation of solenoid valve in the liquid line near the evaporator is mandatory for proper operation of the unit since the unit will switch off only after a pump down cycle. Solenoid valve is to be interlocked with controller as per terminals in the wiring diagram.

Oil separator

ACUV-N is incorporated with oil separator as standard to remove oil from the discharge gas and return it to thecompressor.

Oil separator




5

The unit mounted control panel enclosure is fabricated out of heavy gauge sheet steel in phosphatized powder coated baked finish. The enclosure conforms to IP54 as per guidelines in IEC 529. A hinged access door and key-fastener is provided for easy access and security. The panel is factory wired in accordance with NEC 430 & 440, labeled, tagged and features 220V / 240V controls.

• All compressors are with part winding start as standard.• Individual compressor and condenser fan motor contactors.

• Thermal magnetic circuit breakers for compressors and condenser fan motors.

• Voltage monitoring module for protection against under voltage, over voltage, phase loss, phase reversal and phase unbalance of the incoming voltage.

• Circuit breaker for control circuit.

• Microprocessor master board with graphical display.

• Microprocessor expansion boards as required.

• Control Relays.

• Control circuit on/off switch and pump down switches.

• Control terminal blocks and power terminal blocks/bus bars.

Control Panel

Electronic Expansion ValveACUV-N series should be incorporated with electronic expansion valve for precise control efrigerant mass flow. Our electronic expansionvalve improves EER (Energy Efficiency Ratio) at full & part-loadconditions. Also it improves temperature control & increases the range of operating conditions. precisely selected valve will be provided, if CRSP option is requested.

Electronic Expansion Valve

Microprocessor Controller

Microprocessor control system is available for ACUV-N series as a standard feature. Our high energy efficient unit has a full function microprocessor controller unit designed to keep the unit running at its most energy efficient level. It is a rugged microprocessor based controller that is designed for the hostile environment of HVAC industry.It provides flexibility with set points and control options that can be selected prior to commissioning a system or when the unit is live and functioning. Displays, alarms and other interfaces are accomplished in a clear and simple language that informs the user as to the status of the system. It is designed to safeguard the system that is being controlled, eliminate the need for manual intervention and to provide a simple but meaningful man-machine-interface.

This controller provides complete operational control for the unit and has built-in auto diagnostic capability that can signal normal operation or alarm conditions as well as shutting down the unit or system, if necessary.

The Main Features of the controller are as follows:

• A large graphical LCD Display (2.8˝ diagonal) with back-lit that can be seen in bright or dim lighting.

• A nine button generic keypad that is so user friendly, it rarely requires a reference manual.

• Multiple authorization levels to provide tight security of the control system.

• Two operating schedules per each day of the week and 8 holidays.

• The system provides ‘last time’ enabled & disabled, number of cycles, and total run hours.

• Pump-down at the beginning and end of every circuit cycle.

• Capacity control based on return air temperature. A special control zone based on return air temperature that reduces compressor cycling, and improves unit part load efficiency.


6

Display InformationSKM ACUV-N unit offer a graphics LCD display which allows the operator to access different parameters of the unit. Operator can view and change the set point of unit parameters. The graphical display has lot of features, trending is one of the key features of graphical display, which shows last 25 samples with an appropriate scale to allow it to fit on the display.

The well designed keypad with three function keys, four direction keys and two selection keys allows the operator to navigate through different Menu, such as:

• Status • Outputs• Inputs• Alarms• Graphs• Setpoint• Service tools

System Control PhilosophyThe unit may be enabled or disabled through the use of control circuit ON/OFF switch in the control panel.

Control is based on return air temperature. How fast the temperature changes is calculated and capacity decisions are based upon the rate, the current temperature, and the control temperature zone. Capacity is never added if the system is moving toward the temperature target at an acceptable rate. The unit will monitor all control functions and stage the compressor to maintain the required operating capacity.

Easy Accessible Measurements Include:• Status of the unit.• Status of each circuit/compressor.• Status of condenser fans.• Return air temperature.• Suction pressure and temperature for each refrigerant circuit.• Discharge pressure and temperature for each refrigerant circuit.• Suction and discharge superheat for each refrigerant circuit.• Ampere draw for each compressor.• All active set points.• Run time for each compressor.• Number of compressor starts.• Lockout and alarm status.• Status of voltage monitor, compressor internal motor protector, oil level switch, run/stop input and pump down

switches.

• Lockout Reset• Lockout Alarm• Password

• Log of last 100 alarms. • Date and time.• Graphs of all inputs and outputs.

System ProtectionThe following system protection controls will automatically act to insure system reliability and protection of the unit.• Low suction pressure protection.• High discharge pressure protection.• High discharge temperature protection.• Low discharge pressure protection.• Low superheat protection.• High compressor ampere protection.• Compressor internal thermal protection.• Under voltage, over voltage, phase loss, phase reversal and phase unbalance protection.• Air flow loss protection.• Sensor error protection.• Pump down.• Anti-recycle.• Time delay between stages. • 4-Levels of passwords to restrict the intentional mishandling.

BMS Connectivity (Optional)

Optional Features

Alternative Condenser MaterialMade of copper tubes and alternative fin material and/or protective coating. • For Pre Coated aluminum fins, specify (FAP).• For Aluminum Fins with Aeris Post Coat Protection, specify

(FAA).• For Copper Fins, specify (FC).• For Copper Fins with Aeris Post Coat Protection,specify

(FCA).• For electrotinned Copper Fins only, specify (CFT).• For Copper Finned Coils electrotinned post manufacturing,

specify (FCT).

Condenser Coil Guard (CGP)Galvanized wire mesh frame with painted finish for condensers. Recommended on ground level installations where coil needs to be protected against vandalism.

Volt free contacts for run status, common fault status, auto mode status and provision for remote on/off shall be provided as option if required.

In addition, the ACUVN microprocessor can support the major BMS protocols such as BACnet, Modbus & LON. Extra hardware may be required depending on the protocol.




7

Marine Paint (MP)To provide increased corrosion resistance coastal environments and offshore locations.

Galvanized Frame And Base (GFB) Steel frame and base which are hot dip galvanized after manufacturing process. This is recommended for highly corrosive environments.

Pressure Gauges (SDG1)Suction and discharge pressure indication of each refrigerant circuit. Gauges are mounted outside the Control Panel

Isolated Condenser Fan Motor (CMS)For elimination of extraneous noise and vibrations from condenser fan motor, the motors are individually isolated from the frame.

Low noise Fan and motor assembly (LNF)Can be provided for applications where minimal unit sound is required.

Pressure Relief Valve (PRV) To protect the condensing unit from being over-pressurized.

IP-55 Control Panel (ICP)IP55 enclosure for extra protection against elements.

Low Ambient Operation Kit (LAO)For operation down to lower than normal Gulf ambients. It is also required for special applications.

Voltage Monitoring Module as per DEWA (DVM)To meet DEWA Regulations, modified module with time delay relay. This option is available for Dubai, UAE only.

Star – Delta Starter for Compressors (SDS)To reduce the starting current of compressors using reduced voltage starting method. Compressors will be started in Star & after few seconds it will be changed over to Delta.

Main Isolator (ISO)For the main Power Isolation. (consult SKM)

Ammeter & Phase Selector Switch (AMPC)To indicate running AMPS of each compressor.

Ammeter & Phase Selector switch (AMPI)To indicate running AMPS on main incomer of a unit.

Voltmeter & Selector Switch (VSS)For incoming line voltage.

Options for Field Installations

Anti-vibration mounts (CAVM)Recommended for roof mounted units or other locations in the vicinity of occupied spaces, where noise/vibration may be objectionable.

Hi-Lo Gauges (CSDG1)Without piping or isolating pet cocks.

Liquid Line Controls (CRSP)Comprises of correctly sized electronic expansion valve,suitable solenoid valve,filter drier,sight glass and one number shut-off valve per circuit

Extra Shut Off Valve (CXFV)To fully isolate filter drier, an additional shut-off valve can be incorporated in the liquid line. Must be ordered, if required, with CRSP option.

Special custom built units incorporating specially required features like units with anti-condensation resistance heaters embedded in condenser motors and for off-shore application, special units with stainless steel panels can be manufactured as per customer requirement.

Contact SKM for all such applications or requirements.

BMS Interface Volt free Contacts (BMVF) Volt free contacts for run status, common fault status, auto mode status and provision for remote on/off shall be provided as option if required. For additional requirements, please contact SKM.

BMS Interface thru protocol (BMSP) For interfacing the units with major BMS protocols such as BACNet, Modbus or LON. Extra hardware may be required depending on the protocol.


8

ENGINEERING SPECIFICATIONS - 50 Hz

Table 11). Cooling capacity at 95°F (35°C) ambient temperature & 45°F (7.2°C) SST.2). Cooling capacity at Gulf conditions : 115°F (46.1°C) condenser entering air temperature & 45°F (7.2°C) SST.3). Operating charge is approximate for condensing unit only and does not include refrigerant lines and evaporator coil.4). Condensing units are shipped with nitrogen holding charge only.

ACUVBTUH

WBTUH

WType -Quantity -

Oil Charge US GalBSE 170P Ckt (A/B/C) Liter

Type -ft²m²

Type -Code / Quantity -

cfml/s

Type -Size / Quantity kW

lbskg-

lbskg

ACUVBTUH

WBTUH

WType -Quantity -

Oil Charge US GalBSE 170P Ckt (A/B/C/D) Liter

Type -ft²m²

Type -Code / Qty. -

cfml/s

Type -Size / Qty. kW

lbskg-

lbskg

5.8 / 44 / 4

53180-N 53190-N

8957

Cooling Capacity (1)

829/12829/12


2185000

22 / 22 / 22

360.0

2295000

485727

5.8 / 5.8 / 5.8

Compressor

Face Area 19.3

Refrigerant (R 134a) Operating Charge

Condenser Coil

Air Flow Rate

Per CircuitNumber of Refrigerant Circuits

3

365988

53205-N

Unit Operating Weight

Model

640387624400

4062

1.5/12

15616

38.6 44.6416.0

273124

4

823505

2

9384092080829/8

4428843457

365988

2

4264361248750

302726

457210

391413

5.8 / 5.8

3546311142450

2

168

2

391266

2

302726 334833

2Screw Compressor

2

92080

208.0208.0

35.8 / 5.8

312.022.319.3


95

1.5/8Condenser Motor

1831.5/8

76 76

1032900

Condenser Fan

Model1560000145500052130-N52100-N

121000052110-N


52120-N1335000

208.0

829/8

Totally enclosed, air over Class F insulation, 6-pole, IP-55

19.3240.0

13812065185

829/892080

829/8

53170-N

1335500

962778

29.0

20600006037511032900

5.8 / 5.8 / 4

3

Air cooled, 3 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins

782532

313124

360.0

86914

829/12

3

22 / 22 / 2222 / 22 / 22 22 / 22 / 15 / 15

480.0

669681

5.8 / 5.8 / 5.8 / 5.8

2809800

22 / 22 / 22 / 22

4

2284950

5.8 / 5.8 / 4 / 4

1.5/16273

166 191

1.5/12

166421

142313

7425 800635344

8024 915017693

16029

4191

4 421715 35469848 1608

187680

312.0

Condenser Motor

Face Area

66431

1.5/16

829/16829/16140760

88575

1248750

33.4

1657300

33.4

183001

5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8


366

65185

17653 20176

1.5/12 1.5/12

16372

1424

66431

29.0

138120

Number of Refrigerant Circuits 3 3 3 Per Circuit Refrigerant (R 134a) Operating Charge

Condenser FanAir Flow Rate

3

140760

708251214409

2670000 291500054275-N

5132

54240-N 54260-N

6385 6734

54220-N

9722 11292105514785

2

1681.5/8

43457

832091.5/8

22 / 22

Propeller direct drive 960 RPM

43457

15 / 15 22 / 15 22 / 22 22 / 22 / 15

829/12

Compressor

Condenser Coil

72098532850002460000

67262631200009144202671000

854338

184160

52140-N16400004806571404900411753

2

240.0

1.5/8209

5.8 / 5.822 / 22

22.3

829/8

1549350

416.038.6

829/16

2497550731990

45.8 / 5.8 / 5.8 / 5.822 / 22 / 22 / 22

44288

829/12138120 13812065185 65185

18416086914

1.5/16

829/12

952

11316

93840

53150-N 53160-N1815000 1940000531946 568581

312.0 312.0

15 / 15 / 15 22 / 15 / 15

516450454089 151363

3 34 / 4 / 4

29.0 29.0

5.8 / 4 / 4

1.5/12 1.5/12

124 124273 273

3 314079 14848

187680

480.0

22 / 22 / 22 / 22

782825

45.8 / 5.8 / 5.8 / 5.8

88575

1.5/16

Screw Compressor

366 421




44.6

829/16

ACUVBTUH

WBTUH

WType -Quantity -


Type -ft²m²


cfml/s


lbskg-

lbskg

ACUVBTUH

WBTUH

WType -Quantity -


Type -ft²m²

Type -Code / Qty. -

cfml/s


lbskg-

lbskg

5.8 / 44 / 4

53180-N 53190-N

8957


829/12829/12


2185000

22 / 22 / 22

360.0

2295000

485727

5.8 / 5.8 / 5.8

Compressor

Face Area 19.3


Condenser Coil

Air Flow Rate

Per CircuitNumber of Refrigerant Circuits

3

365988

53205-N


Model

640387624400

4062

1.5/12

15616

38.6 44.6416.0

273124

4

823505

2

9384092080829/8

4428843457

365988

2

4264361248750

302726

457210

391413

5.8 / 5.8

3546311142450

2

168

2

391266

2

302726 334833

2Screw Compressor

2

92080

208.0208.0

35.8 / 5.8

312.022.319.3


95


1831.5/8

76 76

1032900

Condenser Fan

Model1560000145500052130-N52100-N

121000052110-N


52120-N1335000

208.0

829/8


19.3240.0

13812065185

829/892080

829/8

53170-N

1335500

962778

29.0

20600006037511032900

5.8 / 5.8 / 4

3


782532

313124

360.0

86914

829/12

3

22 / 22 / 2222 / 22 / 22 22 / 22 / 15 / 15

480.0

669681

5.8 / 5.8 / 5.8 / 5.8

2809800

22 / 22 / 22 / 22

4

2284950

5.8 / 5.8 / 4 / 4

1.5/16273

166 191

1.5/12

166421

142313

7425 800635344

8024 915017693

16029

4191

4 421715 35469848 1608

187680

312.0

Condenser Motor

Face Area

66431

1.5/16

829/16829/16140760

88575

1248750

33.4

1657300

33.4

183001

5.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8


366

65185

17653 20176

1.5/12 1.5/12

16372

1424

66431

29.0

138120

Number of Refrigerant Circuits 3 3 3 Per Circuit Refrigerant (R 134a) Operating Charge

Condenser FanAir Flow Rate

3

140760

708251214409

2670000 291500054275-N

5132

54240-N 54260-N

6385 6734

54220-N

9722 11292105514785

2

1681.5/8

43457

832091.5/8

22 / 22


43457

15 / 15 22 / 15 22 / 22 22 / 22 / 15

829/12

Compressor

Condenser Coil

72098532850002460000

67262631200009144202671000

854338

184160

52140-N16400004806571404900411753

2

240.0

1.5/8209

5.8 / 5.822 / 22

22.3

829/8

1549350

416.038.6

829/16

2497550731990

45.8 / 5.8 / 5.8 / 5.822 / 22 / 22 / 22

44288

829/12138120 13812065185 65185

18416086914

1.5/16

829/12

952

11316

93840

53150-N 53160-N1815000 1940000531946 568581

312.0 312.0

15 / 15 / 15 22 / 15 / 15

516450454089 151363

3 34 / 4 / 4

29.0 29.0

5.8 / 4 / 4

1.5/12 1.5/12

124 124273 273

3 314079 14848

187680

480.0

22 / 22 / 22 / 22

782825

45.8 / 5.8 / 5.8 / 5.8

88575

1.5/16

Screw Compressor

366 421




44.6

829/16




9

Table 1 ends

ACUVBTUH

WBTUH

WType -Quantity -


Type -ft²m²


cfml/s


lbskg-

lbskg

ACUVBTUH

WBTUH

WType -Quantity -


Type -ft²m²

Type -Code / Qty. -

cfml/s


lbskg-

lbskg


44.6

829/16

4 4

2.2/16

216000162000829/16829/16

381000011166473266600

22923 24738

221120

957386

45.8 / 5.8 / 5.8 / 5.8

Screw Compressor

3 314952 15722

159 159351 351

76455 76455

2.2/12 2.2/12

162000

15 / 15 / 15 22 / 15 / 15

29.0 29.0

829/12 829/12

630300554191 184730

3 35.8 / 4 / 4

216000101941

829/16Propeller direct drive 1150 RPM

22 / 22 / 22 / 22

52179

1212

162000

63180-N 63195-N2210000 2365000

38.6

3053800895018

45.8 / 5.8 / 5.8 / 5.822 / 22 / 22 / 22

Air cooled, 4 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins416.0312.0

11922

5.8 / 5.822 / 22

22.3

829/8110560


267

312.0

10260

2.2/8

62170-N20050005876321719550

Compressor

Condenser Coil

88218140150003010000

8206332800000 3260000 3560000

1043376

165840

22 / 22


50970

15 / 15 22 / 15 22 / 22 22 / 22 / 15

829/12

312.0

1189811089

829/8108000

94972

2162.2/8

50970Totally enclosed, air over Class F insulation, 6-pole, IP-55

64270 N63250-N

5029 74785396 6781 7130

64335-N

5407

64295-N 64315-N

78268

29.0

Number of Refrigerant Circuits


Condenser Motor

Face Area

829/12

3182401 465

76455

18630 21384

2.2/12 2.2/12

17245

182

78268

2.2/16

1526900

33.4

2024050

33.4

369461

360.0

3

447509

22 / 22 / 22

3

4

11239

4243211

10396 11219

221120104357101941

7821 844924782

8467 969818670

104357

2.2/16351

211 243

2.2/12536536

2.2/16465401

3 3

2791300955451

360.0

3

22 / 22 / 2222 / 22 / 225.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8

480.0

818083

5.8 / 5.8 / 5.8 / 5.8

3439050

4

22 / 22 / 15 / 155.8 / 5.8 / 4 / 4

480.0

22 / 22 / 22 / 22

63210-N

1633300

1176729

29.0

2520000738570763450

5.8 / 5.8 / 4

3

3

312.0208.0

829/8

19.3240.022.319.3

240.0

16200076455

Model1905000178000062160-N62120-N

147500062135-N


62150-N1630000477726 521688

Condenser Fan

Condenser Coil

1526900

Air Flow Rate 108000

208.0208.0


25.8 / 5.8

121


2322.2/8

98 982672.2/8

Per Circuit2

216

447509

2

50970

2105

829/8

Screw Compressor2

223754

558324

478693

5.8 / 5.8

503971

2

647714 6931421890900

4 / 4 / 4

369461 409042

2

43229813956501260600

110560108000829/8

52179

2.2/12

16489

38.6 44.6416.0

351159

4

1007928

2

Model

7825321260600

4307

63220-N2670000

63235-N

4653


593215

5.8 / 5.8 / 5.8

5.8 / 44 / 4Compressor

Face Area 19.3



Per Circuit


829/12829/12


Refrigerant (R 134a) Operating Charge159

Condenser FanAir Flow Rate 165840

ENGINEERING SPECIFICATIONS - 60 HzACUVBTUH

WBTUH

WType -Quantity -


Type -ft²m²


cfml/s


lbskg-

lbskg

ACUVBTUH

WBTUH

WType -Quantity -


Type -ft²m²

Type -Code / Qty. -

cfml/s


lbskg-

lbskg


44.6

829/16

4 4

2.2/16

216000162000829/16829/16

381000011166473266600

22923 24738

221120

957386

45.8 / 5.8 / 5.8 / 5.8

Screw Compressor

3 314952 15722

159 159351 351

76455 76455

2.2/12 2.2/12

162000

15 / 15 / 15 22 / 15 / 15

29.0 29.0

829/12 829/12

630300554191 184730

3 35.8 / 4 / 4

216000101941

829/16Propeller direct drive 1150 RPM

22 / 22 / 22 / 22

52179

1212

162000

63180-N 63195-N2210000 2365000

38.6

3053800895018

45.8 / 5.8 / 5.8 / 5.822 / 22 / 22 / 22

Air cooled, 4 rows, 14 FPI (1.8mm) fin spacing, Hi X-Cu tubes, Al fins416.0312.0

11922

5.8 / 5.822 / 22

22.3

829/8110560


267

312.0

10260

2.2/8

62170-N20050005876321719550

Compressor

Condenser Coil

88218140150003010000

8206332800000 3260000 3560000

1043376

165840

22 / 22


50970

15 / 15 22 / 15 22 / 22 22 / 22 / 15

829/12

312.0

1189811089

829/8108000

94972

2162.2/8

50970Totally enclosed, air over Class F insulation, 6-pole, IP-55

64270 N63250-N

5029 74785396 6781 7130

64335-N

5407

64295-N 64315-N

78268

29.0



Condenser Motor

Face Area

829/12

3182401 465

76455

18630 21384

2.2/12 2.2/12

17245

182

78268

2.2/16

1526900

33.4

2024050

33.4

369461

360.0

3

447509

22 / 22 / 22

3

4

11239

4243211

10396 11219

221120104357101941

7821 844924782

8467 969818670

104357

2.2/16351

211 243

2.2/12536536

2.2/16465401

3 3

2791300955451

360.0

3

22 / 22 / 2222 / 22 / 225.8 / 5.8 / 5.8 5.8 / 5.8 / 5.8

480.0

818083

5.8 / 5.8 / 5.8 / 5.8

3439050

4

22 / 22 / 15 / 155.8 / 5.8 / 4 / 4

480.0

22 / 22 / 22 / 22

63210-N

1633300

1176729

29.0

2520000738570763450

5.8 / 5.8 / 4

3

3

312.0208.0

829/8

19.3240.022.319.3

240.0

16200076455

Model1905000178000062160-N62120-N

147500062135-N


62150-N1630000477726 521688

Condenser Fan

Condenser Coil

1526900

Air Flow Rate 108000

208.0208.0


25.8 / 5.8

121


2322.2/8

98 982672.2/8

Per Circuit2

216

447509

2

50970

2105

829/8

Screw Compressor2

223754

558324

478693

5.8 / 5.8

503971

2

647714 6931421890900

4 / 4 / 4

369461 409042

2

43229813956501260600

110560108000829/8

52179

2.2/12

16489

38.6 44.6416.0

351159

4

1007928

2

Model

7825321260600

4307

63220-N2670000

63235-N

4653


593215

5.8 / 5.8 / 5.8

5.8 / 44 / 4Compressor

Face Area 19.3



Per Circuit


829/12829/12


Refrigerant (R 134a) Operating Charge159

Condenser FanAir Flow Rate 165840

1). Cooling capacity at 95°F (35°C) ambient temperature & 45°F (7.2°C) SST.2). Cooling capacity at Gulf conditions : 115°F (46.1°C) condenser entering air temperature & 45°F (7.2°C) SST.3). Operating charge is approximate for condensing unit only and does not include refrigerant lines and evaporator coil.4). Condensing units are shipped with nitrogen holding charge only.


10

Table 2

PI* PI* PI* PI*°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW35 1.7 985.7 288.9 76.9 912.2 267.4 85.7 835.2 244.8 95.7 758.2 222.2 105.640 4.4 1093.6 320.5 79.7 1013 296.9 88.6 929.2 272.3 98.6 846 248 108.345 7.2 1208.7 354.3 82.7 1120.5 328.4 91.8 1029.6 301.8 101.7 940.1 275.5 111.250 10 1330.9 390.1 86 1234.8 361.9 95.3 1136.6 333.1 105.1 1040.5 305 114.335 1.7 1094.6 320.8 87.6 1013.4 297 97.9 929 272.3 109.4 845.5 247.8 120.640 4.4 1210.4 354.8 90.9 1121.8 328.8 101.4 1030.6 302.1 112.8 941 275.8 123.745 7.2 1333.7 390.9 94.4 1237.3 362.6 105.1 1139 333.8 116.4 1043.1 305.7 126.950 10 1464.4 429.2 98.4 1359.9 398.6 109.2 1254.3 367.6 120.3 1152.2 337.7 130.435 1.7 1200.5 351.9 98.8 1111.5 325.8 110.8 1020.1 299 123.8 930.3 272.7 136.140 4.4 1323.8 388 102.7 1227.3 359.7 114.8 1128.9 330.9 127.7 1033.2 302.8 139.545 7.2 1454.9 426.4 106.9 1350.4 395.8 119.2 1245.1 364.9 131.8 1143.4 335.1 143.150 10 1593.6 467.1 111.5 1481.1 434.1 123.9 1368.6 401.1 136.2 1260.9 369.6 146.835 1.7 1283.9 376.3 105.8 1188.7 348.4 118.6 1090.9 319.7 132.5 994.9 291.6 145.640 4.4 1415.8 415 109.8 1312.5 384.7 122.9 1207.4 353.9 136.6 1105 323.9 149.345 7.2 1555.9 456 114.3 1444.2 423.3 127.5 1331.5 390.3 141.1 1222.7 358.4 153.250 10 1704.3 499.5 119.3 1583.9 464.2 132.6 1463.6 429 145.7 1348.4 395.2 157.135 1.7 1354.3 396.9 114.4 1252.7 367.2 128.2 1149 336.8 143 1047.8 307.1 156.740 4.4 1492.3 437.4 118.9 1382.2 405.1 132.9 1270.9 372.5 147.5 1163.2 340.9 160.745 7.2 1638.7 480.3 123.9 1519.8 445.5 138.1 1400.8 410.6 152.3 1286.6 377.1 164.850 10 1793.4 525.6 129.5 1665.6 488.2 143.6 1538.9 451 157.4 1418.3 415.7 168.935 1.7 1478.6 433.4 115.4 1368.3 401.1 128.5 1252.8 367.2 143.5 1137.3 333.3 158.540 4.4 1640.4 480.8 119.5 1519.5 445.4 132.9 1393.8 408.5 147.8 1269 371.9 162.545 7.2 1813 531.4 124 1680.8 492.6 137.7 1544.4 452.7 152.5 1410.1 413.3 166.750 10 1996.4 585.1 129 1852.2 542.9 142.9 1704.8 499.7 157.6 1560.8 457.5 171.435 1.7 1588 465.4 126 1470 430.8 140.7 1347.1 394.8 157.2 1225 359.1 173.440 4.4 1757.8 515.2 130.6 1628.8 477.4 145.6 1495.7 438.4 162 1364.4 399.9 177.845 7.2 1938.6 568.2 135.7 1798.1 527 150.9 1654.4 484.9 167.2 1513.7 443.7 182.550 10 2130.6 624.5 141.3 1978 579.7 156.7 1823.2 534.4 172.7 1673 490.4 187.535 1.7 1695.4 496.9 136.9 1569.6 460.1 153.2 1439.5 421.9 171.2 1311.1 384.3 188.640 4.4 1872.9 548.9 142.1 1735.9 508.8 158.7 1595.6 467.7 176.6 1458 427.3 193.445 7.2 2061.7 604.3 147.8 1913.1 560.7 164.6 1762.1 516.5 182.2 1615.3 473.4 198.450 10 2261.9 663 154 2101.1 615.8 171 1939.2 568.4 188.3 1783.2 522.7 203.8

52140-N

53150-N

53160-N

53170-N

125°F (52°C)

52110-N

52120-N

52130-N

Model ACUV

SSTCondenser Entering Air Temperature

Total Capacity

52100-N

Total Capacity Total Capacity Total Capacity95°F (35°C) 105°F (40°C) 115°F (46°C)

* Power input mentioned in this page should not be used for cable or fuse selection. MCA and MFA values given in the electrical data pages (17-19) should be referred for the same.

Computer Print outs for matched ratings with SKM Air Handling Units are available.

Notes :

CAPACITY RATINGS - 50 Hz




11

Table 2 ends


PI* PI* PI* PI*°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW35 1.7 1800.7 527.8 148.2 1667.3 488.7 166.2 1530.1 448.5 185.7 1395.5 409 204.140 4.4 1985.7 582 154 1840.9 539.6 172.3 1693.4 496.3 191.5 1549.9 454.3 209.345 7.2 2182.3 639.6 160.3 2025.6 593.7 178.8 1867.6 547.4 197.7 1715 502.7 214.750 10 2390.5 700.6 167.2 2221.6 651.2 185.8 2052.9 601.7 204.3 1891.3 554.4 220.335 1.7 1890.2 554 154.4 1750.6 513.1 173.1 1606.9 471 193.5 1465.6 429.6 212.940 4.4 2084.9 611.1 160.3 1933.3 566.7 179.4 1778.7 521.3 199.6 1627.9 477.1 218.445 7.2 2291.8 671.7 166.8 2127.8 623.7 186.1 1962 575.1 206 1801.6 528.1 22450 10 2511.1 736 174 2334.2 684.2 193.4 2157.1 632.3 212.9 1987.1 582.4 229.835 1.7 2031.5 595.4 171.6 1879.1 550.8 192.4 1723.5 505.1 214.5 1571.7 460.7 23540 4.4 2238.4 656.1 178.3 2073.3 607.7 199.4 1906.3 558.7 221.3 1744.8 511.4 24145 7.2 2458 720.4 185.8 2279.7 668.2 207.1 2101.2 615.9 228.5 1929.9 565.7 247.250 10 2690 788.5 194.3 2498.4 732.3 215.4 2308.3 676.6 236 2127.5 623.6 253.435 1.7 2189.2 641.7 175.2 2026.7 594 195.9 1858.1 544.6 218.9 1691 495.6 241.340 4.4 2420.8 709.5 181.7 2243.5 657.6 202.8 2061.2 604.1 225.7 1881.9 551.6 247.445 7.2 2667.3 781.8 188.9 2474.5 725.3 210.3 2278 667.7 232.9 2086.3 611.5 253.950 10 2928.8 858.4 196.8 2719.8 797.2 218.4 2508.7 735.3 240.6 2304.5 675.4 260.835 1.7 2401 703.7 197.6 2223 651.6 221.6 2040.1 598 247.6 1860.6 545.4 272.140 4.4 2647.6 776 205.3 2454.5 719.4 229.7 2257.9 661.8 255.4 2066.5 605.7 279.145 7.2 2909.7 852.8 213.8 2700.8 791.6 238.4 2490.2 729.9 263.6 2286.7 670.2 286.250 10 3187.3 934.2 223 2962.2 868.2 247.7 2737.2 802.3 272.4 2521.8 739.1 293.735 1.7 2567.9 752.6 211.5 2377.5 696.8 237.2 2181.8 639.5 264.9 1989.9 583.2 291.240 4.4 2831.7 830 219.6 2625.1 769.4 245.7 2414.7 707.8 273.3 2210 647.7 298.745 7.2 3111.9 912.1 228.7 2888.4 846.6 255 2663.1 780.5 282.1 2445.5 716.8 306.350 10 3408.6 999.1 238.7 3167.8 928.5 265.1 2927.3 858 291.5 2696.9 790.5 314.235 1.7 2708.6 793.9 228.7 2505.4 734.3 256.5 2297.9 673.5 285.9 2095.6 614.2 313.340 4.4 2984.6 874.8 237.7 2764.5 810.3 265.9 2541.8 745 295 2326.4 681.9 321.445 7.2 3277.3 960.6 247.8 3039.7 890.9 276.1 2801.6 821.2 304.6 2573.2 754.2 329.650 10 3586.7 1051.3 259 3331.2 976.4 287.2 3077.8 902.1 314.7 2836.7 831.4 337.8

54275-N

53180-N

53190-N

53205-N

54220-N

54240-N

54260-N

125°F (52°C) Model ACUV

SSTCondenser Entering Air Temperature

Total CapacityTotal Capacity Total Capacity Total Capacity95°F (35°C) 105°F (40°C) 115°F (46°C)



Notes :


12

Table 3


PI* PI* PI* PI*°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW35 1.7 1199.4 351.5 91.7 1111.1 325.7 102.1 1018 298.4 114.1 924.4 271 126.340 4.4 1331.6 390.3 94.9 1234.6 361.9 105.5 1133.2 332.1 117.5 1032 302.5 129.545 7.2 1472.8 431.7 98.5 1366.7 400.6 109.3 1256.5 368.3 121.2 1147.3 336.3 132.950 10 1623.1 475.7 102.3 1507.3 441.8 113.3 1388 406.8 125.1 1270.7 372.4 136.435 1.7 1333.1 390.7 104.3 1235.4 362.1 116.6 1133.4 332.2 130.4 1031.8 302.4 144.140 4.4 1475.3 432.4 108 1368.6 401.1 120.6 1258.1 368.7 134.4 1148.8 336.7 147.845 7.2 1626.9 476.8 112.1 1510.6 442.8 124.9 1391.3 407.8 138.6 1274.2 373.5 151.650 10 1787.9 524 116.7 1661.6 487 129.6 1533.2 449.4 143.1 1408.2 412.8 155.635 1.7 1463.5 428.9 117.5 1356.4 397.6 131.7 1245.6 365.1 147.4 1136.2 333 162.540 4.4 1615.2 473.4 121.8 1498.8 439.3 136.3 1379.4 404.3 151.9 1262.5 370 166.645 7.2 1776.6 520.7 126.6 1650.4 483.7 141.3 1522.3 446.2 156.8 1397.7 409.7 170.950 10 1947.8 570.9 131.9 1811.5 531 146.7 1674.4 490.8 161.9 1542.1 452 175.435 1.7 1565.5 458.9 125.7 1451 425.3 140.9 1332.4 390.5 157.7 1215.4 356.2 173.940 4.4 1727.8 506.4 130.3 1603.2 469.9 145.8 1475.5 432.5 162.6 1350.5 395.8 178.445 7.2 1900.4 557 135.4 1765.4 517.5 151.2 1628.3 477.3 167.8 1495.1 438.2 18350 10 2083.5 610.7 141.1 1937.7 568 157 1791.1 525 173.3 1649.6 483.5 187.635 1.7 1652.6 484.4 135.8 1530.2 448.5 152.3 1404.4 411.6 170.2 1280.9 375.4 187.140 4.4 1822.6 534.2 140.9 1689.7 495.3 157.7 1554.4 455.6 175.5 1422.6 417 19245 7.2 2003.2 587.1 146.6 1859.4 545 163.7 1714.4 502.5 181.2 1574.2 461.4 196.950 10 2194.4 643.2 153 2039.5 597.8 170 1884.7 552.4 187.1 1736.3 508.9 201.835 1.7 1799.1 527.3 137.6 1666.6 488.5 153.1 1526.9 447.5 171.1 1386.7 406.4 189.440 4.4 1997.4 585.4 142.4 1852 542.8 158.3 1699.8 498.2 176.3 1548 453.7 194.345 7.2 2209.2 647.5 147.7 2050 600.9 163.9 1884.8 552.4 181.8 1721 504.4 199.350 10 2434.7 713.6 153.5 2260.9 662.7 169.9 2082 610.2 187.6 1906.1 558.7 204.535 1.7 1933.4 566.7 150.1 1791.5 525.1 167.5 1642.9 481.5 187.4 1494.5 438 207.240 4.4 2141.7 627.7 155.4 1986.5 582.3 173.2 1825.3 535 193.1 1665.3 488.1 212.545 7.2 2364 692.9 161.3 2194.6 643.2 179.4 2020.2 592.1 199.1 1848.4 541.8 21850 10 2600.2 762.1 167.7 2416 708.1 186.1 2227.9 653 205.5 2044.2 599.2 223.735 1.7 2065.5 605.4 163 1914.2 561 182.3 1756.7 514.9 204 1600.4 469.1 225.340 4.4 2283.5 669.3 168.8 2118.6 621 188.6 1948.4 571.1 210.2 1780.6 521.9 23145 7.2 2515.9 737.4 175.3 2336.5 684.8 195.4 2153.1 631.1 216.9 1973.6 578.5 23750 10 2762.6 809.7 182.5 2568.1 752.7 202.8 2371.1 695 224 2179.9 638.9 243.2

Total Capacity Total Capacity

Condenser Entering Air TemperatureSST

Total Capacity

62120-N

Model ACUV

95°F (35°C) 105°F (40°C) 115°F (46°C) 125°F (52°C)Total Capacity

62135-N

62150-N

62160-N

62170-N

63180-N

63195-N

63210-N



Notes :




13

Table 3


Table 3 ends



Notes :

PI* PI* PI* PI*°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW35 1.7 2195.2 643.4 176.3 2034.6 596.3 197.6 1868.4 547.6 221.1 1704.3 499.5 243.740 4.4 2422.7 710.1 182.7 2248.1 658.9 204.5 2069.1 606.5 227.9 1893.7 555.1 25045 7.2 2664.9 781.1 189.9 2475.6 725.6 212 2283.4 669.3 235.2 2096.5 614.5 256.450 10 2921.7 856.3 197.8 2717.3 796.4 220.1 2511.6 736.2 242.9 2313.2 678 26335 1.7 2304.1 675.3 183.6 2136.2 626.1 205.8 1962.1 575.1 230.4 1789.9 524.6 254.340 4.4 2543.5 745.5 190.2 2360.9 692 212.9 2173.2 637 237.5 1989.1 583 260.845 7.2 2798.4 820.2 197.6 2600.4 762.2 220.7 2398.8 703.1 245.1 2202.4 645.5 267.550 10 3068.8 899.5 205.9 2854.8 836.8 229.1 2639 773.5 253.1 2430.3 712.3 274.435 1.7 2478.9 726.6 203.7 2295.4 672.8 228.4 2106.6 617.4 255.2 1921.3 563.1 280.740 4.4 2733.9 801.3 211.3 2534.6 742.9 236.6 2331.6 683.4 263.3 2133.8 625.4 28845 7.2 3004.7 880.7 219.9 2789.2 817.5 245.5 2571.6 753.7 271.8 2361.4 692.1 295.350 10 3291.6 964.8 229.5 3059.2 896.7 255.1 2827 828.6 280.6 2604.4 763.3 302.735 1.7 2666.3 781.5 208.6 2470.8 724.2 233.1 2266.8 664.4 260.8 2063.5 604.8 288.240 4.4 2950.6 864.8 216.1 2737.1 802.3 241.1 2516.1 737.5 268.8 2297.6 673.4 295.645 7.2 3253.7 953.7 224.3 3021.2 885.5 249.8 2782.6 815.6 277.3 2548.4 746.9 303.350 10 3575.7 1048 233.4 3323.3 974.1 259.1 3066.5 898.8 286.2 2816.4 825.5 311.235 1.7 2927 857.9 235 2712.8 795.1 263.5 2491.2 730.2 294.8 2272.4 666.1 32540 4.4 3230.3 946.8 243.6 2997.5 878.6 272.6 2758.8 808.6 303.9 2525 740.1 333.345 7.2 3553.1 1041.4 253.1 3300.8 967.5 282.6 3044.6 892.4 313.5 2795.4 819.3 341.950 10 3895.5 1141.8 263.8 3623 1061.9 293.5 3348.8 981.5 323.8 3084.2 904 350.735 1.7 3131.1 917.7 251.4 2901.9 850.5 281.9 2664.8 781.1 315.4 2430.8 712.5 347.840 4.4 3455.5 1012.8 260.6 3206.4 939.8 291.7 2951.1 865 325.2 2700.9 791.6 356.745 7.2 3800.8 1114 270.8 3530.9 1034.9 302.4 3256.7 954.5 335.6 2990.1 876.4 365.950 10 4167 1221.4 282.2 3875.5 1135.9 314 3582.1 1049.9 346.5 3299.2 967 375.235 1.7 3305.2 968.8 271.6 3060.5 897 304.6 2808.8 823.3 340.3 2561.7 750.8 374.240 4.4 3645.2 1068.4 281.8 3379.5 990.5 315.5 3108.8 911.2 351.1 2845.1 833.9 38445 7.2 4006.3 1174.3 293.2 3718.9 1090 327.3 3428.8 1005 362.4 3148.5 922.8 393.850 10 4388.8 1286.4 306 4079 1195.6 340.1 3769.3 1104.8 374.2 3472.5 1017.8 403.5

Total Capacity Total Capacity

Condenser Entering Air TemperatureSST

Total Capacity Model

ACUV95°F (35°C) 105°F (40°C) 115°F (46°C) 125°F (52°C)

Total Capacity

64295-N

64315-N

64335-N

63220-N

63235-N

63250-N

64270 N


14

Selection Procedure Example

The following information should be determined:

1. Required total capacity = 2459 MBh (720 kW)2. Saturated suction temperature = 50°F (10°C) 3. Condenser entering air temperature = 115°F (46°C)4. Power Supply (V/Ph/Hz) = 380/3/50

Enter capacity ratings from Table 2 at 115°F (46°C) condenser entering air temperature and select model ACUV 54220-N having a cooling capacity of 2508.7 MBh (735.3 kW) at 50°F (10°C) saturated suction temperature, compressor motor power input is 240.6 kW. For further details refer to physical data and specifications sheets.

Capacity ratings are based on sea level operation. Above sea level, apply the following corrections method.

Actual capacity (at level) = Sea level capacity x altitude correction factor (from Table 4).

Altitude Correction Factors

The unit ratings are based on sea level. Above sea level apply the following correction factors:

feet meter0 0 1 1

2000 610 0.99 1.014000 1219 0.98 1.026000 1829 0.97 1.038000 2438 0.96 1.04

10000 3048 0.95 1.05

Altitude Capacity Multiplier

PowerMultiplier

Table 4




15

Field ConnectionsACUV-N series self-contained heavy duty air cooled condensing units are designed for minimum field interaction.

Power hook-ups for AHU starter and fan interlock and control wiring of room thermostat and duct sensor as per Electrical hook-up diagram is all that is required to electrically connect any model of ACUV-N series .

Every ACUV-N series condensing unit requires, at most, field installed fused disconnect switches or circuit breakers, thermostat / sensorRefer below for a schematic representation of required field electrical hook-ups for a standard ACUV-N series condensing unit.

All field wiring must be done in accordance with applicable local and national codes.

For maximum recommended fuse sizes and minimum circuit amps for cable sizing, see Page 17~19 of this bulletin.

The ACUV-N series is then ready to provide cooling, on demand.

Field Wiring Requirement Schematic

CIRCUIT BREAKEROR FUSED

3 WIRE SYSTEM440V/3PH/50HZ

4 WIRE SYSTEM380-415V/3PH/50HZ380V/3PH/60HZL1

L2L3N

E

GROUND

L1 L2 L3 N

ACUV N-SERIES

3 PHASE,

DISCONNECT SWITCH

3 PHASE,

CONTROL PANEL

(NOT BY SKM)

220V/3PH/60HZ

L2L1

L N**

FAN INTERLOCK FROM AHUDOL/STAR DELTA

AIR HANDLING UNIT

WVU

E

~3M

(CONTACTOR, OVERLOADRELAY & ON/OFF CONTROL etc.)

CUSTOMER SUPPLIEDAND INSTALLEDFIELD ACCESSORY

380V/3PH/60HZ380-415V/3PH/50HZ

AHU STARTER BOX

4 WIRE SYSTEM

DISCONNECT SWITCH

CIRCUIT BREAKER

(NOT BY SKM)

3 PHASE,

L2L1 L3 N

OR FUSED

FIELD WIRING

FIELD WIRINGLOW VOLTAGE

LINE VOLTAGE

REFER ACTUAL WIRING DIAGRAMFURNISHED WITH THE UNIT FOREXACT IDENTIFICATION OF WIRE NUMBERS.

EFM STARTER INTERLOCK TO AHU

460V/3PH/60HZ

ACUV N SERIES UNITS RATED FOR 440V/3PH/50HZ, 460V/3PH/60HZ, OR POWER SUPPLIES WITH OUT NEUTRALREQUIRE SEPARATE SOURCE OF CONTROL POWER SUPPLY THRU FIELD SUPPLIED & INSTALLED 15A/220V FUSEDCONTROL DISCONNECT SWITCH OR ORDER WITH FACTORY BUILT IN OPTION ' CXT '.

**

(BY OTHERS)

THERMOSTAT

Ala rm

AU TO

SCHD

O FF

CS

ON

AUT O

M

Hea t

Ac tu al

Coo l

SYSTEM

SET

FAN

Gnd+ 12-+

DUCTSENSOR

2 CORE SHIELDCABLE (BY OTHERS)

2 CORE SHIELDCABLE (BY OTHERS)


16

Typical Wiring Diagram

CURR

ENT

TRAN

SFOR

MER

MAN

UAL

PUM

PDOW

NSW

ITCH

MOT

ORPR

OTEC

TOR

LEGE

ND

LOW

PRES

SURE

COND

ENSE

RFA

NM

OTOR

CONT

ROL

SWITC

HCO

NTRO

LRE

LAY

COM

PRES

SOR

MOT

OR

HIGH

PRES

SURE

POW

ERCI

RCUI

TFU

SE

CIRC

UIT

BREA

KER

CRAN

KCA

SEHE

ATER

CONT

ROL

FUSE

MIN

IATU

RECI

RCUI

TBR

EAKE

R

CCH CRF LPHPCSCFM CMCF

CONT

ACTO

RC CB

MCB

CT

S SS MP

SELE

CTOR

SWIT

CH

FIELD

WIR

ING

RPB

RESE

TPU

SHBU

TTON

OLS

OIL

LEVE

LSW

ITCH

DISC

ONNE

CTM

EANS

ASRE

QUIR

EDBY

LOCA

L&

NATI

ONAL

ELEC

TRIC

CODE

.PR

OVID

EOV

ERCU

RREN

T,EA

RTH

FAUL

TPR

OTEC

TION

,SHO

RTCI

RCUI

TAN

D**

ORV

OIL

RETU

RNVA

LVE

OSL

OIL

SEPA

RATO

RLE

VEL

SWIT

CH

14

N1

4N

121

2

NO

REL

AY-2

LSV1

LSV2

ORV

1

CR3

ORV2

SENS

OR

1

+5

DIGITAL INPUTS

DI4+5DI3

SI+

5Gn

d

Digit

alAn

alog

DIGITALINPUTS

+5 DI2+5 DI1

ANALOGOUTPUTS

A3 A4Gnd

5

Men

u8

74

6

Blue

485+

Purpl

eYe

llow

Black Red

ANALOGOUTPUTS

Gnd A2A1

KEYPAD

SCL +12VGNDSDA

Brow

n

REL

AY-1

485-

Com

NONC

ComC1

1414

SUC

TIO

NSU

CTI

ON

COM

P-2

COM

P-1

DIS

CH.

DIS

CH.

DIS

CH.

DIS

CH.

PRES

SURE

MP-

1

PRES

SURE

MP-

2

PRE

SSUR

EPR

ESSU

RETE

MP.

TEM

P.REL

AY-

9

230V

SEN

SOR

10

MAI

NBO

ARD

Digit

alAn

alog

Gnd

SEN

SOR

6SE

NSO

R4

SENS

OR3

SEN

SOR

5SE

NSOR

2

+5

11

+5

Gnd

SI

Digit

alAn

alog

+5

Gnd

SI

Digit

alAn

alog

11

+5

Gnd

SI

Digit

alAn

alog

+5

Gnd

SI

Digit

alAn

alog

SEN

SOR

7S

ENSO

R8

SENS

OR

9

Digi

talAn

alog

Digit

alAn

alog

Gnd

SI+

5Gn

dSI

+5

SISI

+5

Gnd

Digi

talAn

alog

SI+

5Gn

d

Digit

alAn

alog

MIC

ROPR

OCES

SOR

NO

REL

AY-4

NO

REL

AY-3

NCCo

mNC

Com

NC

RELA

Y-5

NOCo

mNC

NC

RELA

Y-6

Com

NONC

RELA

Y-7

Com

NO

C3

NC

RELA

Y-8

Com

NOCo

m

Gnd

+12Volts

SEN

SOR

12S

ENSO

R11 SI

+5

Gnd

Digit

alAn

alog

+5

Gnd

SI

Digit

alAn

alog

ETHE

RNET

MCSI/O

+Gnd -

RS-485

-Gnd ++12

L1

REL

AY-1

0

NCNO

Com

NCNO

L2Gn

d

RELA

Y-5 CO

M

RELA

Y-10

RELA

YOU

TPUT

EXPA

NSIO

NBO

ARD

COM

CFM-6

C10

NCNO

SPAR

EFU

SE

RELA

Y-6

EFMSTARTERINTERLOCK

CR4

COM

NCCO

MNO

NCNO

RELA

Y-7

RELA

Y-8

NONC

COM

NCNO

RELA

Y-9

NCCFM-1

RELA

Y-1

Com

NOC5

CFM-2

CFM-3

CFM-4

CFM-5

NCNC

Com RE

LAY-

2

NOCo

m RELA

Y-3

NOCo

mNO

RELA

Y-4

Com

NCNO

C6C7

C8C9

1

GND

-+M

CSI/

O

N

NCL1

FUSE

Gnd

POW

ER

L22

30

V

MCB1

**

L1N

L2 L3L1

I>

CFM3

C2

COMP-1B

1

SE-E

1

MP2

C4CR

1CR

2

L

OSL1

11

L

C2

FANINTERLOCKFROMAHUPANEL

11

OSL2

(BYOTHERS)

14

MP1

LN 12

11

SE-E

1R

PB1

3

L2L1

21

L3

4

14

SOL.VALVE(25%)

C1

SV1

5

1 1

1 2

N 12L1L3

L2

F11

2F2

F33

DISP

LAY/

KEYP

AD

COMP-1A

C1

SOL.VALVE(25%)

C3

L 11

RPB

2

2

3

4

5

1 1

SV4

1 2

93

T 1

T2

R2

C1

1 2

C2CM

1

M3~

7 8

CB1

CT1

CCH1 R1

C3CB2

CT2

POW

ERSU

PPLY

93

R2

T 1

T2

C4CM

2

M3~

217 8

R1CCH2

MPCB

3M

PCB2

MPCB

1 CFM1

I>

C5

I>I>

CFM

2

C6

I>I>

I>

C7

I>

LOADSOL.VALVESV2

UNLOADSOL.VALVE

LSV1

SV3

CR1

COMP-2A

COMP-2B

C3C4

LOADSOL.VALVESV5

UNLOADSOL.VALVE

LSV2

CR2

SV6

MPC

B7M

PCB5

MPCB

6

I>

CFM

5

I>

C9

I>I>

CFM6

I>

C10

I>I>

CFM

7

C11I>

I>I>

EFM

STAR

TER

INTE

RLO

CK

AHU

PANE

L

CR

4

VOLT

FREE

CONT

ACT

TO

N

S1

I>

CFM

4

MPC

B4 C8

I>I>

MPCB

8 CFM8

C12I>

I>I>

CFM-7

C11

CFM-8

C12

DUCT

SEN

SOR

NOCo

mNC

VMM

BA

C

F

CR3

(LO

OSE

SUPP

LY)

THER

MO

STAT

AlarmAU

TO

SCHDOFF

ONAUTO

Heat

Actua

lCo

ol

SYST

EMSET

FAN

-+-+

B A

AB

D C

CD

F E

SI Analo

gDi

gital

Digi

talAn

alog

+5

SENS

OR12

SENS

OR4

SENS

ORIN

PUT

EXPA

NSIO

NBO

ARD

SENS

OR1

SENS

OR3

SENS

OR2

SI

FUSE +

5SENS

OR9

Gnd

Digit

alAn

alog

SPAR

E

Analo

gDi

gital

SENS

OR10

Gnd

+5

SI

Digit

alAn

alog

Gnd

SENS

OR11

+5

SI

Digit

alAn

alog

Analo

gDi

gital

Analo

gDi

gital

+5

SIGn

d

L

OLS1

N

Gnd

SI+

5Gn

dSI

+5

L

OLS2

N

SENS

OR5

SENS

OR6

SENS

OR8

SENS

OR7

Gnd

SENS

OR14

Digi

talAn

alog

SENS

OR13

SIGn

d+

5SI

Gnd

+5Digit

alAn

alog

Analo

gDi

gital

Analo

gDi

gital

SI

SENS

OR15

+5

SIGn

d

Analo

gDi

gital

SENS

OR16

+5

SIGn

d

Digit

alAn

alog

Analo

gDi

gital

Analo

gDi

gital

Gnd

+5

Gnd

SI+

5Gn

dSI

+5

+5

Gnd

SISI

+5

Gnd

POW

ER2

30

V

ANAL

OGOU

TPUT

S

Gnd

A1A2

A2Gn

dA1

1

GND

MCS

I/O

+-

L2L1

N

FUSE

Gnd

+12

+12

Gnd

+12

Volts

MCB

2

COM

P-2

COM

P-1

AMPS

CT-1

CT-2

AMPS

COM

P-1

SUCT

ION

TEM

P.

COM

P-2

SUCT

ION

TEM

P.

COM

P.-1

COM

P.-2

COM

P.-2

COM

P.-1

VMM

CS RUN/STOP

S2VM

MVO

LTAG

EM

ONIT

ORIN

GM

ODUL

E

2COR

ESHI

ELD

CABL

E(B

YOT

HERS

)

2COR

ESHI

ELD

CABL

E(BY

OTHE

RS)

2COR

ESHI

ELD

CABL

E(BY

OTHE

RS)




17

Table 5

Table 6

hcaE ARLhcaE ALFYTQYTQFCIACMAFM51008 9.84.211701420451009 2.719.311741130551012 2.719.311261533651014 9.84.221681340852015 9.84.222421143652019 2.719.322071450852024 2.719.3229811600152025 2.719.3324919600152028 2.719.3328228752152034 2.719.33 1 + 18628852152039 2.719.3327727906152045 2.719.341 + 163331106152049 2.719.34254322100252051 2.719.342 + 218213106152055 2.719.34498283100252065 2.719.362 + 250356100252075 2.719.36426328105252080 2.719.363 + 171449105252085 2.719.362 + 227340205252090 2.719.381 + 344412251352095 2.719.384454132513

hcaE ARLhcaE ALFYTQYTQFCIACMAFM51008 9.78.111601320451009 616.311641030551012 616.311161433651014 9.78.121581140852015 9.78.122321043652019 616.322961350852024 616.322781160852025 616.3323918600152028 616.3327227752152034 616.331 + 17627852152039 616.3325726906152045 616.341 + 143321106152049 616.34234312100252051 616.342 + 297292106152055 616.34478273100252065 616.362 + 220336100252075 616.36495308105252080 616.363 + 141429105252085 616.362 + 296320205252090 616.381 + 314491251352095 616.384054822513

hcaE ARLhcaE ALFYTQYTQFCIACMAFM61009 6.91.311321820561011 5.713.511871733661014 5.713.511371340861017 6.91.3218424500162018 6.91.322441940862023 5.713.5227026600162028 5.713.5228021852162030 5.713.5326122952162034 5.713.5329929906162040 5.713.531 + 142381100262046 5.713.53293323100262053 5.713.541 + 198345105262060 5.713.54220476105262062 5.713.542 + 296307105262065 5.713.54467377105262080 5.713.562 + 220402251362090 5.713.56465494251362095 5.713.563 + 110566200462100 5.713.562 + 296497200462105 5.713.581 + 383530300462110 5.713.584155613004

hcaE ARLhcaE ALFYTQYTQFCIACMAFM61009 8.111.311011420461011 12511151230561014 12511661633661017 8.111.321091440862018 8.111.322821243662023 12522571650862028 125224914600162030 125321024700162034 125324321852162040 12531 + 14723906162046 1253238220106162053 12541 + 134391100262060 1254235392100262062 12542 + 298263106162065 1254469234100262080 12562 + 251337105262090 1256437319105262095 12563 + 182440205262100 12562 + 238341251362105 12581 + 385443251362110 12584864442513


46 + 37 270 + 215

0319154132571828951

28 + 24 175 + 145

37 + 28 215 + 175

28 + 24 175 + 145

37 + 28 215 + 175

5529408385

85 + 58 460 + 380

560 + 460

380 + 225

110 + 85

58 + 49

85 + 58 460 + 380

110 + 85 560 + 46006458

110 560

110 + 85 560 + 460110 + 85 560 + 460

73204

47 + 37 270 + 215

2550838559103

28 + 25

37 + 28 215 + 175

175 + 145

110 560

08385

55133

06458

50346

47 + 37 270 + 215

37 + 28 215 + 175

0614255103

5326331181

07264

55103

46 + 37 270 + 215

57182

5127346 + 37 270 + 215

Model ACUSrotoM naF resnednoCrosserpmoC

POWER SUPPLY 440V/3PH/50HzUnit Characteristics

03191

07264

RLA Each LRA Each8951

270 + 215270 + 215

51273

46 + 3746 + 37

57182

46 + 37 270 + 215

51273

07264270 + 21546 + 37

54142

37 + 28 215 + 17557182

0319154132

571828951

130

Model ACUSUnit Characteristics

54132

07264

POWER SUPPLY 380V-415V/3PH/50HzrotoM naF resnednoCrosserpmoC


19

57182

5127337 + 28 215 + 175

5413254142

3118106142


RLA Each LRA EachUnit Characteristics

260 + 23551 + 36

64 + 51 305 + 260

36 + 33

51 + 36

235 + 155

260 + 23553263

06215



54132145

57182

895103191

5413257182

895103191


RLA Each LRA Each

215

07274

55264

5910373204

46

270 + 215270 + 215

25

51273

07274

57182

37

270 + 21546 + 37

64 + 51 305 + 260

53263

06215

50346

Unit CharacteristicsPOWER SUPPLY 460V/3PH/60Hz

POWER SUPPLY 220V/3PH/60Hz


64 + 5164 + 51

305 + 260305 + 260

47 + 3747 + 37






46 + 37 270 + 215

0319154132571828951

28 + 24 175 + 145

37 + 28 215 + 175

28 + 24 175 + 145

37 + 28 215 + 175

5529408385

85 + 58 460 + 380

560 + 460

380 + 225

110 + 85

58 + 49

85 + 58 460 + 380

110 + 85 560 + 46006458

110 560

110 + 85 560 + 460110 + 85 560 + 460

73204

47 + 37 270 + 215

2550838559103

28 + 25

37 + 28 215 + 175

175 + 145

110 560

08385

55133

06458

50346

47 + 37 270 + 215

37 + 28 215 + 175

0614255103

5326331181

07264

55103

46 + 37 270 + 215

57182

5127346 + 37 270 + 215



03191

07264


270 + 215270 + 215

51273

46 + 3746 + 37

57182

46 + 37 270 + 215

51273

07264270 + 21546 + 37

54142

37 + 28 215 + 17557182

0319154132

571828951

130


54132

07264



19

57182

5127337 + 28 215 + 175

5413254142

3118106142



260 + 23551 + 36

64 + 51 305 + 260

36 + 33

51 + 36

235 + 155

260 + 23553263

06215



54132145

57182

895103191

5413257182

895103191


RLA Each LRA Each

215

07274

55264

5910373204

46

270 + 215270 + 215

25

51273

07274

57182

37

270 + 21546 + 37

64 + 51 305 + 260

53263

06215

50346




64 + 5164 + 51

305 + 260305 + 260

47 + 3747 + 37

ELECTRICAL DATA

QTY RLA LRA QTY FLA LRA52100-N 500 311 591 2 124 423 8 3.96 16.552110-N 500 353 633 1 + 1 124 + 166 423 + 520 8 3.96 16.552120-N 630 405 730 2 166 520 8 3.96 16.552130-N 630 430 822 1 + 1 186 + 166 612 + 520 8 3.96 16.552140-N 800 450 842 2 186 612 8 3.96 16.553150-N 630 451 731 2 + 1 124 + 124 423 + 423 12 3.96 16.553160-N 800 503 828 1 + 2 166 + 124 520 + 423 12 3.96 16.553170-N 800 545 870 2 + 1 166 + 124 520 + 423 12 3.96 16.553180-N 800 587 912 2 + 1 166 + 166 520 + 520 12 3.96 16.553190-N 800 612 1004 1 + 2 186 + 166 612 + 520 12 3.96 16.553205-N 1000 652 1044 2 + 1 186 + 186 612 + 612 12 3.96 16.554220-N 1000 685 1010 2 + 2 166 + 124 520 + 423 16 3.96 16.554240-N 1000 769 1094 4 166 520 16 3.96 16.554260-N 1000 814 1206 2 + 2 186 + 166 612 + 520 16 3.96 16.554275-N 1250 854 1246 4 186 612 16 3.96 16.5

QTY RLA LRA QTY FLA LRA52100-N 500 287 545 2 115 391 8 14.752110-N 500 326 584 1 + 1 115 + 154 391 + 478 8 14.752120-N 630 375 671 2 154 478 8 3.5 14.752130-N 630 398 756 1 + 1 173 + 154 563 + 478 8 3.5 14.752140-N 630 417 775 2 173 563 8 3.5 14.753150-N 630 416 674 2 + 1 115 + 115 391 + 391 12 3.5 14.753160-N 630 465 761 1 + 2 154 + 115 478 + 391 12 3.5 14.753170-N 800 504 800 2 + 1 154 + 115 478 + 391 12 3.5 14.753180-N 800 543 839 2 + 1 154 + 154 478 + 478 12 3.5 14.753190-N 800 566 924 1 + 2 173 + 154 563 + 478 12 3.5 14.753205-N 800 604 962 2 + 1 173 + 173 563 + 563 12 3.5 14.754220-N 800 633 929 2 + 2 154 + 115 478 + 391 16 3.5 14.754240-N 1000 711 1007 4 154 478 16 3.5 14.754260-N 1000 753 1111 2 + 2 173 + 154 563 + 478 16 3.5 14.754275-N 1000 791 1149 4 173 563 16 3.5 14.7

QTY RLA LRA QTY FLA LRA62120-N 630 366 729 2 149 534 8 1962135-N 630 416 779 1 + 1 149 + 199 534 + 631 8 1962150-N 800 479 876 2 199 631 8 3.9 1962160-N 800 510 987 1 + 1 224 + 199 742 + 631 8 3.9 1962170-N 800 535 1012 2 224 742 8 3.9 1963180-N 800 531 894 2 + 1 149 + 149 534 + 534 12 3.9 1963195-N 800 594 991 1 + 2 199 + 149 631 + 534 12 3.9 1963210-N 1000 644 1041 2 + 1 199 + 149 631 + 534 12 3.9 1963220-N 1000 694 1091 2 + 1 199 + 199 631 + 631 12 3.9 1963235-N 1000 725 1202 1 + 2 224 + 199 742 + 631 12 3.9 1963250-N 1000 775 1252 2 + 1 224 + 224 742 + 742 12 3.9 1964270-N 1250 808 1206 2 + 2 199 + 149 631 + 534 16 3.9 1964295-N 1250 908 1306 4 199 631 16 3.9 1964315-N 1250 964 1442 2 + 2 224 + 199 742 + 631 16 3.9 1964335-N 1500 1014 1492 4 224 742 16 3.9 19


QTY RLA LRA QTY FLA LRA62120-N 1000 608 1211 2 246 885 8 6.80 3262135-N 1000 691 1294 1 + 1 246 + 329 885 + 1040 8 6.80 3262150-N 1250 795 1449 2 329 1040 8 6.8 3262160-N 1250 846 1633 1 + 1 370 + 329 1224 + 1040 8 6.8 3262170-N 1500 887 1674 2 370 1224 8 6.8 3263180-N 1250 881 1484 2 + 1 246 + 246 885 + 885 12 6.8 3263195-N 1500 985 1639 1 + 2 329 + 246 1040 + 885 12 6.8 3263210-N 1500 1068 1722 2 + 1 329 + 246 1040 + 885 12 6.8 3263220-N 1500 1151 1805 2 + 1 329 + 329 1040 + 1040 12 6.8 3263235-N 1250+800 846+438 1633+1092 1 + 2 370 + 329 1224 + 1040 12 6.8 3263250-N 1500+1000 887+490 1674+1276 2 + 1 370 + 370 1224 + 1224 12 6.8 3264270-N 1250+1000 795+608 1449+1211 2 + 2 329 + 246 1040 + 885 16 6.8 3264295-N 1250+1250 795+795 1449+1449 4 329 1040 16 6.8 3264315-N 1500+1250 887+795 1674+1449 2 + 2 370 + 329 1224 + 1040 16 6.8 3264335-N 1500+1500 887+887 1674+1674 4 370 1224 16 6.8 32

380~415/3/50

Unit Characteristic Compressor Condenser Fan Motor

MFA MCA ICF

ModelACUV

440/3/50


MFA MCA ICF

ModelACUV

380/3/60


MFA MCA ICF

Model ACUV

460/3/60


MFA MCA ICF

Model ACUV

220/3/60


MFA MCA ICF

Model ACUV

3.53.5

3.93.9

3.83.8






380~415/3/50


MFA MCA ICF

ModelACUV

440/3/50


MFA MCA ICF

ModelACUV

380/3/60


MFA MCA ICF

Model ACUV

460/3/60


MFA MCA ICF

Model ACUV

220/3/60


MFA MCA ICF

Model ACUV

3.53.5

3.93.9

3.83.8


18

ELECTRICAL DATA

Table 8






46 + 37 270 + 215

0319154132571828951

28 + 24 175 + 145

37 + 28 215 + 175

28 + 24 175 + 145

37 + 28 215 + 175

5529408385

85 + 58 460 + 380

560 + 460

380 + 225

110 + 85

58 + 49

85 + 58 460 + 380

110 + 85 560 + 46006458

110 560

110 + 85 560 + 460110 + 85 560 + 460

73204

47 + 37 270 + 215

2550838559103

28 + 25

37 + 28 215 + 175

175 + 145

110 560

08385

55133

06458

50346

47 + 37 270 + 215

37 + 28 215 + 175

0614255103

5326331181

07264

55103

46 + 37 270 + 215

57182

5127346 + 37 270 + 215



03191

07264


270 + 215270 + 215

51273

46 + 3746 + 37

57182

46 + 37 270 + 215

51273

07264270 + 21546 + 37

54142

37 + 28 215 + 17557182

0319154132

571828951

130


54132

07264



19

57182

5127337 + 28 215 + 175

5413254142

3118106142



260 + 23551 + 36

64 + 51 305 + 260

36 + 33

51 + 36

235 + 155

260 + 23553263

06215



54132145

57182

895103191

5413257182

895103191


RLA Each LRA Each

215

07274

55264

5910373204

46

270 + 215270 + 215

25

51273

07274

57182

37

270 + 21546 + 37

64 + 51 305 + 260

53263

06215

50346




64 + 5164 + 51

305 + 260305 + 260

47 + 3747 + 37






46 + 37 270 + 215

0319154132571828951

28 + 24 175 + 145

37 + 28 215 + 175

28 + 24 175 + 145

37 + 28 215 + 175

5529408385

85 + 58 460 + 380

560 + 460

380 + 225

110 + 85

58 + 49

85 + 58 460 + 380

110 + 85 560 + 46006458

110 560

110 + 85 560 + 460110 + 85 560 + 460

73204

47 + 37 270 + 215

2550838559103

28 + 25

37 + 28 215 + 175

175 + 145

110 560

08385

55133

06458

50346

47 + 37 270 + 215

37 + 28 215 + 175

0614255103

5326331181

07264

55103

46 + 37 270 + 215

57182

5127346 + 37 270 + 215



03191

07264


270 + 215270 + 215

51273

46 + 3746 + 37

57182

46 + 37 270 + 215

51273

07264270 + 21546 + 37

54142

37 + 28 215 + 17557182

0319154132

571828951

130


54132

07264



19

57182

5127337 + 28 215 + 175

5413254142

3118106142



260 + 23551 + 36

64 + 51 305 + 260

36 + 33

51 + 36

235 + 155

260 + 23553263

06215



54132145

57182

895103191

5413257182

895103191


RLA Each LRA Each

215

07274

55264

5910373204

46

270 + 215270 + 215

25

51273

07274

57182

37

270 + 21546 + 37

64 + 51 305 + 260

53263

06215

50346




64 + 5164 + 51

305 + 260305 + 260

47 + 3747 + 37

Table 7






380~415/3/50


MFA MCA ICF

ModelACUV

440/3/50


MFA MCA ICF

ModelACUV

380/3/60


MFA MCA ICF

Model ACUV

460/3/60


MFA MCA ICF

Model ACUV

220/3/60


MFA MCA ICF

Model ACUV

3.53.5

3.93.9

3.83.8






380~415/3/50


MFA MCA ICF

ModelACUV

440/3/50


MFA MCA ICF

ModelACUV

380/3/60


MFA MCA ICF

Model ACUV

460/3/60


MFA MCA ICF

Model ACUV

220/3/60


MFA MCA ICF

Model ACUV

3.53.5

3.93.9

3.83.8




19

Table 9






46 + 37 270 + 215

0319154132571828951

28 + 24 175 + 145

37 + 28 215 + 175

28 + 24 175 + 145

37 + 28 215 + 175

5529408385

85 + 58 460 + 380

560 + 460

380 + 225

110 + 85

58 + 49

85 + 58 460 + 380

110 + 85 560 + 46006458

110 560

110 + 85 560 + 460110 + 85 560 + 460

73204

47 + 37 270 + 215

2550838559103

28 + 25

37 + 28 215 + 175

175 + 145

110 560

08385

55133

06458

50346

47 + 37 270 + 215

37 + 28 215 + 175

0614255103

5326331181

07264

55103

46 + 37 270 + 215

57182

5127346 + 37 270 + 215



03191

07264


270 + 215270 + 215

51273

46 + 3746 + 37

57182

46 + 37 270 + 215

51273

07264270 + 21546 + 37

54142

37 + 28 215 + 17557182

0319154132

571828951

130


54132

07264



19

57182

5127337 + 28 215 + 175

5413254142

3118106142



260 + 23551 + 36

64 + 51 305 + 260

36 + 33

51 + 36

235 + 155

260 + 23553263

06215



54132145

57182

895103191

5413257182

895103191


RLA Each LRA Each

215

07274

55264

5910373204

46

270 + 215270 + 215

25

51273

07274

57182

37

270 + 21546 + 37

64 + 51 305 + 260

53263

06215

50346




64 + 5164 + 51

305 + 260305 + 260

47 + 3747 + 37

ELECTRICAL DATA






380~415/3/50


MFA MCA ICF

ModelACUV

440/3/50


MFA MCA ICF

ModelACUV

380/3/60


MFA MCA ICF

Model ACUV

460/3/60


MFA MCA ICF

Model ACUV

220/3/60


MFA MCA ICF

Model ACUV

3.53.5

3.93.9

3.83.8

Legend

MFA Maximum Fuse Amps (for fuse/circuit breaker sizing), complies with NEC Article 440-22 & 430-52.MCA Minimum Circuit Amps.(for wire sizing), complies with

NEC article 440-33.ICF Maximum Instantaneous Current Flow.

PWS Part Winding Start.

RLA Rated Load Amps. (at worst operating condition) .

LRA Locked Rotor Amps.

FLA Full Load Amps.

Note :

Voltage imbalance not to exceed ± 2 % of the rated voltage.

DOL Direct On-Line Start .


20

Dimensional Data ACUV Models: 52100-N , 52110-N , 52120-N & 62120-N , 62135-N , 62150-N

ACUV Models: 52130-N , 52140-N & 62160-N , 62170-N

MODELS : ACUV- 52100N, 52110N, 52120N & 62120N, 62135N, 62150N

MODELS : ACUV- 52130N, 52140N & 62160N, 62170N

3 COMPRESSOR4 CONTROL PANEL

LEGEND1 CONDENSER FAN2 CONDENSER COIL

ALL DIMENSIONS ARE IN INCHES [mm]

# CONDENSER FAN & UNIT HEIGHT WILL BE DIFFERENTFROM THE LAYOUT FOR THE POWER SUPPLY.* 440V/3Ph/50Hz

NOTE:

# FOR COMPRESSOR WITH SOUND ENCLOSUREUNIT HEIGHT WILL INCREASE BY 2 INCH.

175[4445]

A2

A1

A4

A3

A8

A74

12

G UARDS TEEL W IR E

VENTILATIONF ILTERED

D ETAC HAB LE

CAB LE ENTR YPLATE F OR

88[2235]

104.

83[2

663]

10[254]

67.5[1714]

67.5[1714]

10[254]

1[25]

12[305]

5.91

[150

]3

A6

A5

20[508]

SUC TIONØ x 2Nos .

LIQ UIDØ x 2Nos.

CSH8553110Y

CSH8553110Y

199[5055]

A1

A2

A3

A4

A5

A6

A7

A8

4 2 1

G UARDS TEEL WIRE R IG G ING H OLES

4x Ø 1 1/4

VENTILATIONFILTER ED

DETACH AB LE

CAB LE ENTRYP LATE F OR

20[508]

59.5[1511]

40[1016]

59.5[1511]

20[508]

1[25]

12[305]

88[2235]

104.

83[2

663]

3

CSH8563125Y

SUC TIONØ x 2Nos.

LIQ UIDØ x 2Nos .

CSH8563125Y

5.91

[150

]

# SUC. & LIQ. LINES ARE BASED ON 100f

t

EQUIVALENT LENGTH

[32]

R IG G ING H OLES4 x Ø 1 1/ 4 [32]

MODELS : ACUV- 52100N, 52110N, 52120N & 62120N, 62135N, 62150N

MODELS : ACUV- 52130N, 52140N & 62160N, 62170N


LEGEND1 CONDENSER FAN2 CONDENSER COIL



NOTE:


175[4445]

A2

A1

A4

A3

A8

A74

12

G UARDS TEEL W IR E

VENTILATIONF ILTERED

D ETAC HAB LE

CAB LE ENTR YPLATE F OR

88[2235]

104.

83[2

663]

10[254]

67.5[1714]

67.5[1714]

10[254]

1[25]

12[305]

5.91

[150

]3

A6

A5

20[508]

SUC TIONØ x 2Nos .

LIQ UIDØ x 2Nos.

CSH8553110Y

CSH8553110Y

199[5055]

A1

A2

A3

A4

A5

A6

A7

A8

4 2 1

G UARDS TEEL WIRE R IG G ING H OLES

4x Ø 1 1/4

VENTILATIONFILTER ED

DETACH AB LE

CAB LE ENTRYP LATE F OR

20[508]

59.5[1511]

40[1016]

59.5[1511]

20[508]

1[25]

12[305]

88[2235]

104.

83[2

663]

3

CSH8563125Y

SUC TIONØ x 2Nos.

LIQ UIDØ x 2Nos .

CSH8563125Y

5.91

[150

]

# SUC. & LIQ. LINES ARE BASED ON 100f

t

EQUIVALENT LENGTH

[32]

R IG G ING H OLES4 x Ø 1 1/ 4 [32]




21

Dimensional Data

ACUV Models: 54220-N , 54240-N , 54260-N , 54275-N & 64270-N , 64295-N , 64315-N , 64335-N

ACUV Models: 53150-N , 53160-N , 53170-N , 53180-N , 53190-N , 53205-N & 63180-N , 63195-N ,63210-N , 63220-N , 63235-N , 63250-N

MODELS : ACUV- 53150N, 53160N, 53170N, 53180N, 53190N, 53205N &63180N, 63195N, 63210N, 63220N, 63235N, 63250N

MODELS : ACUV- 54220N, 54240N, 54260N, 54275N &64270N, 64295N, 64315N, 64335N

88[2235]

106.

79[2

713]

C ABLE ENTR Y

G UARDSTEEL WIR E4-NOS.

FILTER EDVENTILATION

PLATE FOR

JUNC TIONB OX

L1[25]

14[356]

4

A

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

D ETAC HAB LE

12

B

20[508]

40[1016]

40[1016]

20[508]

3SUC TIONØ x 3Nos.

LIQUIDØ x 3Nos .

R IG G ING H OLES8x Ø 1 1/4

C SH 85 5311 0Y

CSH8553110Y

C SH 855 311 0Y

7.87

[200

]

MODEL-ACUV

LAB

53150N/63180N

53170N /63210N

53205N/DIMENSIONS

[6909]272

[4445]175

[2464]97


NOTE:


# SUC. & LIQ. LINES ARE BASED ON 100fEQUIVALENT LENGTH

63250N53160N/63195N

53180N/63220N

53190N/63235N

[7823]308

[2769]109

[5055]199

[2464]97

[4445]175

[6909]272

[4445]175

[2464]97

[4445]175

[2464]97

[6909]272

[6909]272

[7823]308

[5055]199

[2769]109

[32]

C ABLE ENTR Y

G UAR DSTEEL WIR E

4-NO S.


PLATE FOR

JUNCTIONBO X

L1[25]

14[356]

88[2235]

108.

76[2

763]

RIG GING HO LES

12.2

[310

]

4

BA

20[508]

12A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

40[1016]

40[1016]

40[1016]

20[508]

D ETAC HAB LE

3

SUC TIONØ x 4Nos.

LIQUIDØ x 4Nos .

C SH 856 312 5Y

CSH8563125Y

C SH 85 6312 5Y

CSH8563125Y

9.84

[250

]

MODEL- ACUV

L

A

B

54220N /64270N

54240N /64295N

54260N /64315N

54275N /DIMENSIONS

[8890]350

[10109]398

[4445]175

[5055]199

64335N

[4445]175

[8890]350

[4445]175

[4445]175

[5055]199

[10109]398

[5055]199

[5055]199


LEGEND

1 CONDENSER FAN2 CONDENSER COIL



NOTE:



8x Ø 1 1/4 [32]

MODELS : ACUV- 53150N, 53160N, 53170N, 53180N, 53190N, 53205N &63180N, 63195N, 63210N, 63220N, 63235N, 63250N

MODELS : ACUV- 54220N, 54240N, 54260N, 54275N &64270N, 64295N, 64315N, 64335N

88[2235]

106.

79[2

713]

C ABLE ENTR Y

G UARDSTEEL WIR E4-NOS.


PLATE FOR

JUNC TIONB OX

L1[25]

14[356]

4

A

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

D ETAC HAB LE

12

B

20[508]

40[1016]

40[1016]

20[508]

3SUC TIONØ x 3Nos.

LIQUIDØ x 3Nos .

R IG G ING H OLES8x Ø 1 1/4

C SH 85 5311 0Y

CSH8553110Y

C SH 855 311 0Y

7.87

[200

]

MODEL-ACUV

LAB

53150N/63180N

53170N /63210N

53205N/DIMENSIONS

[6909]272

[4445]175

[2464]97


NOTE:



63250N53160N/63195N

53180N/63220N

53190N/63235N

[7823]308

[2769]109

[5055]199

[2464]97

[4445]175

[6909]272

[4445]175

[2464]97

[4445]175

[2464]97

[6909]272

[6909]272

[7823]308

[5055]199

[2769]109

[32]

C ABLE ENTR Y

G UAR DSTEEL WIR E

4-NO S.


PLATE FOR

JUNCTIONBO X

L1[25]

14[356]

88[2235]

108.

76[2

763]

RIG GING HO LES

12.2

[310

]

4

BA

20[508]

12A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

40[1016]

40[1016]

40[1016]

20[508]

D ETAC HAB LE

3

SUC TIONØ x 4Nos.

LIQUIDØ x 4Nos .

C SH 856 312 5Y

CSH8563125Y

C SH 85 6312 5Y

CSH8563125Y

9.84

[250

]

MODEL- ACUV

L

A

B

54220N /64270N

54240N /64295N

54260N /64315N

54275N /DIMENSIONS

[8890]350

[10109]398

[4445]175

[5055]199

64335N

[4445]175

[8890]350

[4445]175

[4445]175

[5055]199

[10109]398

[5055]199

[5055]199


LEGEND

1 CONDENSER FAN2 CONDENSER COIL



NOTE:



8x Ø 1 1/4 [32]


22

LOADING POINTS - 50Hz

LOADING POINTS - 60HzTable 10

Table 11

Dimensional Data

A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16Ib. 1559 1235 1189 865 865 1189 865 1189 - - - - - - - - 8957Kg. 707 560 539 392 392 539 392 539 - - - - - - - - 4062Ib. 1846 1331 1476 961 865 1190 865 1190 - - - - - - - - 9723Kg. 837 603 669 436 392 539 392 539 - - - - - - - - 4409Ib. 1854 1339 1484 969 969 1484 969 1484 - - - - - - - - 10552Kg. 841 607 673 439 439 673 439 673 - - - - - - - - 4785Ib. 1953 1431 1583 1061 1058 1574 1058 1574 - - - - - - - - 11291Kg. 886 649 718 481 480 714 480 714 - - - - - - - - 5121Ib. 1953 1431 1583 1061 1061 1583 1061 1583 - - - - - - - - 11315Kg. 886 649 718 481 481 718 481 718 - - - - - - - - 5132Ib. 1793 1469 1244 919 919 1244 919 1244 1244 919 1244 919 - - - - 14078Kg. 813 666 564 417 417 564 417 564 564 417 564 417 - - - - 6385Ib. 2080 1565 1531 1015 920 1244 920 1244 1244 920 1244 920 - - - - 14848Kg. 943 710 694 461 417 564 417 564 564 417 564 417 - - - - 6734Ib. 2081 1565 1531 1016 1016 1531 1016 1531 1245 920 1245 920 - - - - 15616Kg. 944 710 694 461 461 694 461 694 564 417 564 417 - - - - 7082Ib. 2080 1564 1530 1015 1015 1530 1015 1530 1530 1015 1530 1015 - - - - 16372Kg. 943 709 694 460 460 694 460 694 694 460 694 460 - - - - 7425Ib. 2194 1672 1644 1123 1120 1635 1120 1635 1635 1120 1635 1120 - - - - 17653Kg. 995 758 746 509 508 742 508 742 742 508 742 508 - - - - 8006Ib. 2193 1671 1644 1122 1122 1644 1122 1644 1644 1122 1644 1122 - - - - 17692Kg. 995 758 745 509 509 745 509 745 745 509 745 509 - - - - 8024Ib. 2082 1566 1536 1020 1020 1536 1020 1536 1249 925 1249 925 945 1310 945 1310 20176Kg. 944 710 697 463 463 697 463 697 567 419 567 419 429 594 429 594 9150Ib. 2082 1567 1537 1021 1021 1537 1021 1537 1537 1021 1537 1021 1041 1597 1041 1597 21715Kg. 944 711 697 463 463 697 463 697 697 463 697 463 472 724 472 724 9848Ib. 2195 1673 1645 1124 1124 1645 1124 1645 1636 1121 1636 1121 1144 1706 1144 1706 23391Kg. 995 759 746 510 510 746 510 746 742 508 742 508 519 774 519 774 10608Ib. 2195 1673 1645 1124 1124 1645 1124 1645 1645 1124 1645 1124 1147 1715 1147 1715 23437Kg. 995 759 746 510 510 746 510 746 746 510 746 510 520 778 520 778 10629


TOTALWEIGHTUNIT

54220-N

53205-N

ACUV-LOADING POINTS

LOADING POINTS

53180-N

53190-N

TOTALWEIGHT

62120-N

52100-N

52110-N

52120-N

52140-N

53150-N

53160-N

UNIT

63210-N

63195-N

62150-N

62160-N

62170-N

63180-N

52130-N

64315-N

62135-N

63250-N

64270-N

ACUV-

53170-N

54240-N

54260-N

54275-N

63220-N

63235-N

64335-N

64295-N



TOTALWEIGHTUNIT

54220-N

53205-N

ACUV-LOADING POINTS

LOADING POINTS

53180-N

53190-N

TOTALWEIGHT

62120-N

52100-N

52110-N

52120-N

52140-N

53150-N

53160-N

UNIT

63210-N

63195-N

62150-N

62160-N

62170-N

63180-N

52130-N

64315-N

62135-N

63250-N

64270-N

ACUV-

53170-N

54240-N

54260-N

54275-N

63220-N

63235-N

64335-N

64295-N




23

(3099)122"

(2083)82"

60"(1524)

60"(1524)

END

(1524)60"COIL SIDE

COIL SIDE

82"

(208

3)

(1524)60"

END

82"

(208

3)

SINGLE UNIT INSTALLATION

MULTIPLE UNIT INSTALLATION

Location and Space Requirements

RecommendationsIt is a necessity that the units are installed with adequate free space around them to ensure proper circulation of air that is rejected by the condensers and to provide adequate space for unit access for servicing and maintenance. There is a possibility of recycling of air if the rejected air from condenser encounters any obstacles leading to an increase in the ambient air temperature surrounding the units.

Air distribution across the entire heat exchange area will be impaired if the air outlet is obstructed. These conditions lead to a reduction in the heat exchange capacity of the coils causing an increase in discharge pressure of the compressors. This leads to a loss of capacity & increase in compressor power input.

• If there are walls on one or two adjacent sides of the unit. The walls may be of any height. If there are walls on more than two adjacent sides of the unit. The walls should not be higher than the unit.

• Do not locate outside air intakes near exhaust vents or other sources of contaminated air.

• If the unit is installed where windy conditions are common, install wind screens around the unit.

• Units surrounded by screens or solid walls must have no over head obstructions over any part of the unit.

• The area above the condenser must be installed unobstructed to allow vertical air discharge.

• A flat concrete foundation or floor which can support the weight of the equipment must provided as the unit must be level for proper operation and functioning of controls.

• Under certain critical conditions it is recommended that vibration isolators of rubber-in-shear or spring type be installed under the base refer to loading points (Page 22).


24

Typical Refrigeration PipingLegend

1. Expansion Valve2. Sight Glass3. Solenoid Valve4. Filter Drier5. Shut Off Valve6. Liquid Line7. Suction Line

Refrigerant Piping

Correct design and size of refrigerant piping is necessary for proper operation. The refrigerant piping generally should be designed to accomplish the following:

a. To ensure proper refrigerant feed to the evaporator.

b. To provide practical refrigerant line sizes without excessive pressure drop.

c. To maintain uniform return of lubricating oil to the compressor.

d. To prevent liquid refrigerant from entering the compressor and causing compressor damage due to "slugging".

Field Expansion Valve Selection

The following recommendations should be taken into consideration when selecting expansion valves in field.

1. Expansion valves should be installed as close to the evaporator as possible, mounted directly to the distributor.

2. The following possible sources of pressure drop to be considered:

a. Friction losses through refrigerant lines.

b. Pressure drop across valves and controls.

c. Pressure drop due to vertical lift of liquid line for R-134a 1°F (0.55°C) sub cooling must be allowed for each 4.2 ft (1.3m) vertical rise in order to avoid flash gas forming due to the weight of the column of liquid refrigerant.

SKM ACUV-N Series units are designed with a sub cooling circuit enough to sub cool the liquid 12°F (6.6 °C), which gives the liquid maximum 50 ft (15m). lift without additional sub cooling. Liquid suction heat exchanger can be used for additional sub cooling in order to avoid flash gas forming.

Matching DX Coil Selection

For single circuit ACUV-N Series, the DX coil selection in a MAH or other air handler from SKM should be based on total capacity. For multiple circuits ACUV-N Series, extra care should be exercised and correspondingly split, by face area or number of rows to correspond and match the capacity split available in the dual circuited ACUV-N Series selected. For optimum matching the DX coil should be ordered from SKM as well.

SKM provides correct no. of feeds and circuits and properly sized distribution to ensure the correct split on the DX coil is made available to match the particular selected ACUV-N Series model.

AHU

1

AIRFLOW

CONDENSINGUNIT

DOUBLE SUCTION RISER

54

3

2

7

76

DOTTED IN CASE OF

6

AIR

AHU

FLOW

1

CONDENSINGUNIT

45

3

2




25

Recommended Refrigerant Line Sizes - 50 Hz

SKM ACUV-N Series Condensing Units are designed for satisfactory operation with single suction line.1. Suction Line sizing selection recommendation in Table 12 & 13 is based on 2ºF temperature drop.2. Double suction risers, for applications with systems having large variations in capacity , are recommended to ensure proper

oil flow up and return to compressor.

3. Liquid line sizing selection recommendation in table 12 & 13 is based on 2ºF temperature drop.

4. Recommended line sizes in Table 12 & 13 are for guidance only. For detailed proper piping, consult recognized piping references like ASHRAE Guide and Data Book for assistance.

5. Suction and liquid line sizes are based on equivalent lengths.

SKM is not responsible for faulty or improper design or sizing of refrigerant lines. The above recommendations do not incorporate necesarry slopes. etc. that may be required on horizontal risers, etc.

Table 13

25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft52100-N 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - - - - - -52110-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - - - - - -52120-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - - - - - -52130-N 1 3/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - - - - - -52140-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 - - - - - - - -53150-N 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - -53160-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - -53170-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 - - - -53180-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - -53190-N 1 3/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 - - - -53205-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 - - - -54220-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 3/8 1 3/8 1 1/8 1 3/8 1 3/8 1 3/854240-N 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/854260-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/8 1 1/8 1 3/8 1 5/8 1 5/854275-N 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8


ModelACUV Circuit 3 Circuit 4

ModelACUV Circuit 1 Circuit 2 Circuit 3

Liquid Line, Inches

Circuit 2Liquid Line, Inches

Circuit 1

Circuit 425ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft

52100-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -52110-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -52120-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -52130-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -

3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -52140-N53150-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -53160-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -53170-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -53180-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -53190-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -53205-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -54220-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/854240-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/854260-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/854275-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8

25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft62120-N62135-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -

3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -

62150-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -62160-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -62170-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -63180-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -63195-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -63210-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -63220-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -63235-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -63250-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -64270-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/864295-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/864315-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/864335-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8


ModelACUV

Suction Line, InchesCircuit 4Circuit 3Circuit 2

Suction Line, InchesCircuit 4Circuit 1

Circuit 1

Table 12


26

Recommended Refrigerant Line Sizes - 60 Hz

Table 15SKM ACUV-N Series Condensing Units are designed for satisfactory operation with single suction line.1. Suction Line sizing selection recommendation in Table 14 & 15 is based on 2ºF temperature drop.2. Double suction risers, for applications with systems having large variations in capacity , are recommended to ensure proper

oil flow up and return to compressor.

3. Liquid line sizing selection recommendation in table 14 & 15 is based on 2ºF temperature drop.

4. Recommended line sizes in Table 14 & 15 are for guidance only. For detailed proper piping, consult recognized piping references like ASHRAE Guide and Data Book for assistance.

5. Suction and liquid line sizes are based on equivalent lengths.

SKM is not responsible for faulty or improper design or sizing of refrigerant lines. The above recommendations do not incorporate necesarry slopes. etc. that may be required on horizontal risers, etc.




ModelACUV Circuit 1 Circuit 2 Circuit 3

Liquid Line, Inches

Circuit 2Liquid Line, Inches

Circuit 1

Circuit 425ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft52100-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -52110-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -52120-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -52130-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -

3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -52140-N53150-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -53160-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -53170-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -53180-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -53190-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -53205-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -54220-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/854240-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/854260-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/854275-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8

25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft62120-N62135-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -

3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - - - - - -

62150-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -62160-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -62170-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - - - - - -63180-N 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -63195-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -63210-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 - - - -63220-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -63235-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -63250-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 - - - -64270-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/8 3 1/864295-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/864315-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/864335-N 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8 3 1/8 3 5/8 3 5/8 3 5/8


ModelACUV

Suction Line, InchesCircuit 4Circuit 3Circuit 2

Suction Line, InchesCircuit 4Circuit 1

Circuit 1

Table 14




27

GENERAL FEATURESCondensing units shall be composed of compressor(s), fan(s), Coil(s), refrigerant piping, electrical components & enclosing cabinet in one piece.

Unit shall be factory assembled, internally wired, piping connections terminated with sealed and soldered copper pipe ends. Unit shall be shipped with nitrogen holding charge (actual charging with refrigerant R-134a should be done at site). Unit shall be capable to operate from 50°F (10°C) to 125°F (52°C) ambient temperature and shall be rated in accordance with AHRI-365 standard.

COIL(S)Coil shall be air cooled with integral sub-cooling circuit, constructed of seamless copper tubes 3/8" OD mechanically bonded to wavy Aluminium (Copper) fins with maximum14 FPI (1.8 mm) spacing. Coil shall be tested against leakage by pressurizing air at 450 psig (3100 kPa) in coil, under water, cleaned and dehydrated at the factory.

COMPRESSOR (S)Compressor shall be high performance and high efficiency screw type. The compressor shall be driven by an electric motor in a single housing. For stability and additional sound attenuation, the rotors (male and female) shall be mounted in a double wall housing. The compressor motor shall be refrigerant gas cooled. Each compressor shall be mounted on anti-vibration mounts to minimize vibration transmission.

Compressor shall have suction and discharge shut off valves, built in three- stage oil separator, long life fine oil filter 10u m mesh size, insertion type oil heater with sleeve, oil sight glass, oil filter & drain service valves and suction gas filter with large surface area and fi ne mesh.Compressor shall have inherent oil lubrication system in which oil pressure is maintained by compression ratio. Bearings shall be generously dimensioned to provide long life operation. Compressor shall have automatic start unloading and shall have infinite capacity control. Each compressor shall be provided with safety devices including check valve in discharge gas outlet, differential relief valve, thermal motor protection by integrated PTC sensors in each winding coil, phase sequence protection for direction of rotation, manual reset lock-out and oil temperature protection by PTC sensor.

CONDENSER FAN(S) & MOTOR(S)The machine shall be furnished with direct driven propeller type discharging air upward condenser fans. Fans shall be constructed of corrosion resistant blades such as heavy gauge aluminum. The fan and drive shall be held in proper alignment. Fan assemblies shall be provided with heavy gauge, rust resistant steel wire fan guard. All condenser fans shall be individually, statically, and dynamically balanced for vibration free operation.

Motors shall be Totally Enclosed Air Over (TEAO), 6 poles, with class ‘F’ insulation, minimum IP-55 protection and factory wired to unit control panel.

REFRIGERANT PIPINGThe refrigerant circuit piping shall be fabricated from ACR grade copper piping, with 2, 3 or 4 refrigeration circuits.The piping connections shall be terminated with sealed & soldered copper pipe ends,which give much simplicity & ease to the installation.

CASINGUnit casing shall be made of zinc coated galvanized steel sheets conforming to JIS-G3302 and ASTM A653 which shall be phosphatized and then electrostatically dry powder coated of approx.60 microns to provide an extremely tough, scratch resistance, excellent anti-corrosive protection that can pass 1000 hrs in 5% salt spray testing at 95°F (35°C) and 95% relative humidity as per ASTM B117.

CONTROL PANEL & CONTROLS

Control panel enclosure shall be fabricated out of heavy gauge steel in phosphatized, powder coated baked finish. The enclosure shall be conformed to IP54 as per guidelines in IEC 529. A hinged access door and key fastener shall be provided for easy access and security.The control panel shall be ventilated using louvers and filters. The panel shall be factory wired in accordance with NEC 430 & 440, labeled, tagged and have 1 phase, 220 / 240 V for controls.

Control Panel should include the following components as minimum :

• Individual compressor and condenser fan motor contactors.

• Circuit breakers for compressors and condenser fan motors.

• Control Circuit ON/OFF switch.

• MCB for control circuit.

• Power and control circuit terminal blocks.

• Microprocessor Control Boards.

GUIDE SPECIFICATIONS


28

GUIDE SPECIFICATIONSA Microprocessor must be provided to control the unit as standard. The controller shall provide the flexibility with set points and control options that can be selected prior to the commisioning. The microprocessor shall provide a complete operational control for the unit and shall have built-in auto diagnostic capability that can signal off normal operation or alarm conditions as well as shutting down the unit.

The main features of the Controller shall be as follows :

• A large graphical display with backlit that can be seen in bright or dim lighting..

• A user friendly generic keypad.

• A multiple level passwords for security.

• Pump down at the beginning and end of every circuit cycle.

• Capacity control based on return air temperature.

Easy Accessible Measurements shall include the following :

• Status of the unit.

• Status of each circuit/compressor.

• Status of condenser fans.

• Return air temperature.

• Suction pressure and temperature for each refrigerant circuit.

• Discharge pressure and temperature for each refrigerant circuit.

• Suction and discharge superheat for each refrigerant circuit.

• Ampere draw for each compressor.

• All active set points.

• Run time for each compressor.

• Number of compressor starts.

• Lockout and alarm status.

• Status of voltage monitor, compressor internal motor protector, oil level switch, run/stop input and pump down

switches.

The following system protection controls shall automatically act to ensure system reliability and protection of the unit thru the microprocessor:

• Low suction pressure protection.

• High discharge pressure protection.

• High discharge temperature protection.

• Low discharge pressure protection.

• Low superheat protection.

• High compressor ampere protection.

• Compressor internal thermal protection.

• Under voltage, over voltage, phase loss, phase reversal and phase unbalance protection.

• Air flow loss protection.

• Sensor error protection.

• Pump down.

• Anti-recycle.

• Time delay between stages.

• 4-Levels of passwords to restrict the intentional mishandling.

Volt free contacts for run status, common fault status, auto mode status and provision for remote on/off shall be available as option.

In addition, the unit microprocessor shall be able to support the major BMS protocols such as BACnet, Modbus & LON as option




29

NOTES


30

NOTES




31

NOTES


32

REGIONAL OFFICES

For SKM Distributors visit:

www.skmaircon.com

Email: [email protected]

Spare Parts DivisionEmail: [email protected]

Service Centre

HEAD OFFICEP.O Box: 6004Sharjah, United Arab EmiratesTel: +971 6 514 3333Fax: +971 6 514 3300Email: [email protected] Email: [email protected]

KuwaitDasmanP.O Box: 1215-PC 15463Tel: +965 2 2492200Fax: +965 2 2494400Email: [email protected]

SKM Air Conditioning Factory Eastern provinceAD Dammam2nd industrial cityAbqiq main road Hail StreetTel: +966 3 8123332 / 4 / 5Fax: +966 3 8123337 / +966 3 8123092Email: [email protected]

Saudi Arabia (Production Facility)

AlgeriaAissat Idir ( EX-ENMA) CityBldg1, Flat 2, Dar El Beida AlgiersTel: +213 21 508197Fax: +213 21 508197Email: [email protected]

Abu DhabiP.O Box: 27788Tel: +971 2 6445223Fax: +971 2 6445145Email: [email protected]

United Arab EmiratesDubaiP.O Box: 98822Tel: +971 4 2940900Fax: +971 4 2940029Email: [email protected]

Al AinTel: +971 3 7619921Fax: +971 3 7619941Email: [email protected]

103/2015Supersedes # 103/2013

air cooled condensing units - s.k.m air con · ed osy el ncl c m m. sai l s e toor toor r ar t oten...

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