SKM Air Cooled Condensing Units AUMR Series - R-410A R-410A … · 2017-12-07 · 3 SKM Air Cooled...

1

SKM Air Cooled Condensing UnitsAUMR Series - R-410A


Range 5 TR to 52 TR(17 kW to 183 kW)

R-410A

AUMR SeriesAir Cooled Condensing Units

Sharjah Economic Excellence Award winnerwww.skmaircon.com

@skmairconfacebook.com/skmaircon

2


Introduction

SKM AUMR series Air cooled condensing unit are designed for the use on systems with indoor units connected to remote condensing units located outside either on ground or on roof level.

SKM AUMR units are manufactured to meet the requirements of the gulf severe climatic conditions.

The AUMR Air Cooled Condensing unit are ideal for warehouses, large halls, schools, mosques, or wherever the requirement calls for a heavy duty unit with a scroll hermetic compressor.

AUMR Series Air cooled condensing unit (hermetic scroll) are available in 32 models covering nominal capacity ranges from 5 TR - 52 TR (17 kW to 183 kW) in 50Hz and 60Hz.

AUMR Air Cooled Condensing unit are rated in accordance with AHRI-365.

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

AUMR 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 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

- 5 1 008 Y

Air Cooled Condensing Unit

Power Supply 5 : 50Hz

Nominal Capacity (TR)

Nomenclature

Frequency 6 : 60Hz

Hermetic Scroll Compressor

No. of Refrigerant Circuits

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

ContentsLegend.............................................. 2Nomenclature ................................... 2Introduction ....................................... 2General Features.............................. 3Component Features ........................ 3Control Panel .................................... 4Microprocessor Controller..................4Optional Features ............................. 5Engineering Specification .............. 7-8Capacity Ratings ......................... 9-10Capacity Control Steps ....................11

Selection Procedure ........................11Field Connections............................12 Field Wiring Requirement Schematic..12 Typical Wiring Diagram................... 13Electrical Data ........................... 14-16Dimensional Data ...................... 17-19Loading Points ................................ 19Location & Space Requirements .... 20Typical Refrigerant Piping............... 21Recommended Line Sizes.............. 22Guide Specification.................... 23-24

U M RA

R-410A

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 700 psig (4826 kPa) under water. All standard coils are 2, 3 and 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 AUMR 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 AUMR condensing units perform efficiently and durably.

General FeaturesThe complete AUMR 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 AUMR series the pride of SKM products is the use of :

• High efficiency totally sealed hermetic scroll compressor.

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

Component Features

Compressor

Compressors used in AUMR Condensing unit series are hermetically sealed, compact scroll with the following features:

• • • • •

•

• • • • •

Condenser Coil

High efficiency.Quiet operation, low sound levels.Better debris handling.Self compensating of wear (“wear-in vs. wear-out”).70% fewer moving parts than comparably sizedreciprocating compressors.Internal motor protection / Advanced scroll temperatureprotection.Suction gas motor cooling.Suction screen.Disc type check valve.Centrifugal force for oil lubrication.Brazed fittings as standard, rotalock as an option.

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 w i red, us ing wi res 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.

Complete fan assembly is provided with suitable acrylic coated fan guard.

Casing/StructureDesigned for ease of handling and low cost to install. The AUMR Air cooled condensing Units are factory assembled and mounted on a rigid base. The unit casing used in AUMR 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. Acess panels are provided for easy service and maintainance

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

AUMR 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.

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, labelled, tagged and features 220V / 240V controls.

• All compressors are with DOL starting. • Individual compressor & condenser fan motor contactors.• Motor protector circuit breaker for condenser fan motors.• Voltage monitoring module for protection against under voltage, over voltage, phase loss, phase reversal and phase unbalance of the incoming voltage.

• Control circuit breaker.• Control circuit on/off switch.• Microprocessor control boards.• Control Relays.• Power and control terminal blocks.

Refrigerant Pipe work

SKM AUMR 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 thermostatic 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.

Installation of solenoid valve in the liquid line is recommended by SKM for proper operation of the unit.

Control Panel

Microprocessor Controller

All AUMR series condensing units are equipped with a full function microprocessor based controller as a standard feature. The controller is factory programmed for the control of AHU fan motor, compressors and condenser fans. The controller comes with a built in keypad and display for simple but meaningful man

Microprocessor Controller

Condenser Fan Motor

5



System Protection

The intelligent microprocessor based controller monitors all the safeties related to the unit and makes the necessary protections, by shutting down the entire unit or the effected circuit. The protection includes:

• Low suction pressure.• High discharge pressure. • High compressor motor temperature. (For compressors

with electronic module).• Compressor short cycling.

BMS Connectivity (Optional)

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

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.

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

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

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

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 controller comes with a loose supplied sleek and elegant design room unit for installing in the conditioned space. Communication between unit controller and room unit is through two wire interface. The communication cable should be 2 core, twisted pair, unscreened with stranded conductors (as per KNX specification) . Maximum distance between room unit and controller can be 700 meters. The room unit has a built in sensor for measuring the room temperature. It transmits room temperature, set point, unit operating mode, operating schedule etc. to the unit controller. Control of the compressors is based on room temperature and the set point, as standard. If unit control needs to be based on duct temperature, please specify during time of order.

The Main Features of the controller are as follows:

• Built in LCD display with back light.• Roll & push knob and 3 function buttons.• Battery backed up built in real time clock.• Multiple authorization level to provide tight security for the

control system.• Capacity control based on room temperature or return air

temperature.• Alarm history.• A sleek & elegant design room unit.

Display Information

SKM AUMR series condensing units offer LCD display which allows the operator to access different parameters of the unit. Operator can view and change the unit parameters. The display information includes:• Status• Outputs• Inputs• Alarms• Set points• Password

System Control Philosophy

Unit maybe enabled or disabled through the on/off switch in the unit control panel. Control is based on room temperature sensed by room unit. Compressors will be staged based on the set point and actual. room temperature. On an increase in room temperature, cooling stages will be added and on a decrease in room temperature, cooling stages will be removed from the system.

Room Unit

6


Suction Pressure read out Capability (SPC)Additional transducer in suction line to display suction pressure in microprocessor.

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.

Condenser Fan motors with anti-condensation heaters built-in (CFMA) Where application so requires.

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 the unit.

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

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 thermostatic expansion valve,suitable solenoid valve,filter drier,sight glass and one number shut-off per circuit.

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

Duct Temperature Sensor (DTS)In order to control the unit based on return / supply air duct temperature.

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.

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

Condenser Fans with polyglycoat coating (PGF) To provide protection against corrosion for condenser fan.

Rotalock Valves on compressors (RVC)For additional facilitation of maintenance of unit.

Hot Gas Bypass System (GBP)With solenoid valve to enable operation of a large sized unit at low loads, like during low ambients due to application requirements. (Highly recommended for 100% fresh air application).

Pump Down Facility (PD)The compressor will switch off each time with a Pump Down Cycle in order to prevent Liquid refrigerant migration to the compressor during off Cycle periods.With this option, each circuit will be provided with an additional discharge check valve (If required), to prevent Refrigerant Migration from High side to Low side when the compressor is off.

IP-55 Control Panel (ICP)Control Panel for special applications to meet IP55 requirements.

Low Ambient Operation Kit (LAO)For unit operation down to lower than normal gulf ambient. Please specify during the time of order.

Main Isolator (Without door interlock) (ISO)For main power isolation. (consult SKM)

Control Transformer (CXT)This option is necessary and available for AUMR models rated for 440V/3PH/50Hz or 460V/3PH/60Hz or power supplies without neutral. When ordering for these voltages, this option must be ordered.

Voltage Monitoring Module as per DEWA (DVM)Under voltage relay as per DEWA regulations. This option is available for Dubai, UAE only.

Circuit Breaker for Compressor (CBC)For those electrical specification calls for additional over load and short circuit protection.

External Overload Protection (EOP)For those electrical specification which require additional overload protection for the compressors.

Soft Starter (SFS)To reduce the starting current of compressors using reduced voltage starting method. Compressors will be started using electronic solid state soft starters that will ramp up the speed of the compressors to rated speed within few seconds thus reducing the mechanical & electrical stresses .

Options for Field Installations

7



ENGINEERING SPECIFICATIONS - 50 Hz

Table 1

1). Cooling capacity at 95°F (35°C) ambient temperature according to AHRI-365.2). 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.

AUMR

BTUH

W

BTUH

W

Type -

Quantity -

US Gal

Liter

Type -

ft²

m²

Type -

Code / Quantity -

cfm

l/s

Type -

Size / Quantity kW

lbs

kg

-

lbs

kg

AUMR

BTUH

W

BTUH

W

Type -

Quantity -

US Gal

Liter

Type -

ft²

m²

Type -

Code / Quantity -

cfm

l/s

Type -

Size / Quantity kW

lbs

kg

-

lbs

kg

2 2

679 717

1.5/3 1.5/31.5/2 1.5/2

897

4.0/4.0 5.28/5.28 5.28/5.282

11.63/11.63

3.7

8193 7740 11893

13.7/13.7

823/2

1497 1580 1979

36.11/36.118.8/8.8

Totally enclosed, air over Class F insulation, 6-pole, IP-551.5/3

2421 2704 2913

2.426.32.4

35.63.3

Air cooled 3 or 4 rows 14 FPI (1.8mm) fin spacing, Cu tubes, Al fins

5.9

218000 248000 280000

63892 72685 82063

2.9 3.6

299 319

1 1658

6.5 7.90.37/1 0.75/1

9.7 12.2

6620

0.9

2105

Propeller direct drive 960 RPM

4460

1.77 1.800.47 0.48

3.40

22274

65235

14462 19119

1 22

140885

Hermetic Scroll Compressor1

Number of Refrigerant Circuits

Unit Operating Weight

2

52019

702

51005 51007

58000 76000

16999

Oil Charge Ckt (A / B)0.9/0.9 1.22/0.9 1.22/1.22 1.8/1.22

220.9/0.93.4/3.4

2

52022

Cooling Capacity (1)

Cooling Capacity (2) 183515 208690 235250

53785 61164 68948

52024

1721711695

823/4823/332040

410

26160

0.9/0.93.4/3.4

15121

Condenser Motor

Face Area

Model

Air Flow Rate

Refrigerant Operating Charge Ckt (A / B)

904

12346

3/9283/328

0.37/20.37/2

3.40

0.37/2

1.8

Condenser Motor

3124

1.1

628/1 723/1

1 1 2

421089204210

628/2 628/2

10.90

8.6 12.9 6.63/6.63 13.0

276460 315195 355595

433

5.9

52036

3.9 5.9 3.01/3.01

464

Condenser Fan

52044

153869

403050 450750

Condenser Coil


973 1098 1227 1321 1401



22144 3089

2 2 2 293.21/93.2181.9/81.922.6/22.6 94.01/23.2131.6/21.8

17.92/13.52 20.23/20.23 27.16/23.14 27.33/27.33

1

132107

470000 525000

137749

1024

121630

415000

104219 11812781026 92378

2

3.4/3.4 4.6/3.4

94959 108441

52028

324000 370000

1.8/1.84.6/4.6

24780

64.06.7

42880


0.9/0.93.4/3.4

26.3

51012

126000

36928

106120

52010

116000112000

32825

95260

21956

0.47/0.47

628/289208920

19.4 19.4

51008

82000

24033

71690

0.71

33998

98685

51009Model

Condenser Coil


Compressor

Oil Charge Ckt (A / B)

49345

Face Area


0.37/2

21011

19.4

Condenser Fan

Air Flow Rate

Totally enclosed, air over Class F insulation, 6-pole, IP-556249

Air cooled 2, 3 or 4 rows 14 FPI (1.8mm) fin spacing, Cu tubes, Al fins1.77/1.77

27919

4361

723/213240 13400

1.8

92404210

2.7/2.7

723/2

164000

1.819.4

1.8

28923 31102

52013 52015

26.3

38240 41291

152000

44549 48066

130475

1.8/1.8

3.68/3.68

6324

3.87/3.87

24.4

2

8.11/8.11

2.4

0.75/2 0.75/2

2.3

72.03.7 5.0

982445

1

52032

22 2

6.8/4.6


1226

8.53/8.53

2

20237

1405

40.0 40.0 53.3

823/2 823/317360 16400 25200

1.5/41.5/41.5/3

829/436480

Compressor

6.8/6.8

52040

0.71/0.71

628/2

0.48/0.482.70

0.90

556 637

AUMR

BTUH

W

BTUH

W

Type -

Quantity -

US Gal

Liter

Type -

ft²

m²

Type -

Code / Quantity -

cfm

l/s

Type -

Size / Quantity kW

lbs

kg

-

lbs

kg

AUMR

BTUH

W

BTUH

W

Type -

Quantity -

US Gal

Liter

Type -

ft²

m²

Type -

Code / Quantity -

cfm

l/s

Type -

Size / Quantity kW

lbs

kg

-

lbs

kg

2 2

679 717

1.5/3 1.5/31.5/2 1.5/2

897

4.0/4.0 5.28/5.28 5.28/5.282

11.63/11.63

3.7

8193 7740 11893

13.7/13.7

823/2

1497 1580 1979

36.11/36.118.8/8.8

Totally enclosed, air over Class F insulation, 6-pole, IP-551.5/3

2421 2704 2913

2.426.32.4

35.63.3


5.9

218000 248000 280000

63892 72685 82063

2.9 3.6

299 319

1 1658

6.5 7.90.37/1 0.75/1

9.7 12.2

6620

0.9

2105


4460

1.77 1.800.47 0.48

3.40

22274

65235

14462 19119

1 22

140885

Hermetic Scroll Compressor1



2

52019

702

51005 51007

58000 76000

16999

Oil Charge Ckt (A / B)0.9/0.9 1.22/0.9 1.22/1.22 1.8/1.22

220.9/0.93.4/3.4

2

52022


Cooling Capacity (2) 183515 208690 235250

53785 61164 68948

52024

1721711695

823/4823/332040

410

26160

0.9/0.93.4/3.4

15121

Condenser Motor

Face Area

Model

Air Flow Rate


904

12346

3/9283/328

0.37/20.37/2

3.40

0.37/2

1.8

Condenser Motor

3124

1.1

628/1 723/1

1 1 2

421089204210

628/2 628/2

10.90

8.6 12.9 6.63/6.63 13.0

276460 315195 355595

433

5.9

52036

3.9 5.9 3.01/3.01

464

Condenser Fan

52044

153869

403050 450750

Condenser Coil


973 1098 1227 1321 1401



22144 3089

2 2 2 293.21/93.2181.9/81.922.6/22.6 94.01/23.2131.6/21.8

17.92/13.52 20.23/20.23 27.16/23.14 27.33/27.33

1

132107

470000 525000

137749

1024

121630

415000

104219 11812781026 92378

2

3.4/3.4 4.6/3.4

94959 108441

52028

324000 370000

1.8/1.84.6/4.6

24780

64.06.7

42880


0.9/0.93.4/3.4

26.3

51012

126000

36928

106120

52010

116000112000

32825

95260

21956

0.47/0.47

628/289208920

19.4 19.4

51008

82000

24033

71690

0.71

33998

98685

51009Model

Condenser Coil


Compressor

Oil Charge Ckt (A / B)

49345

Face Area


0.37/2

21011

19.4

Condenser Fan

Air Flow Rate

Totally enclosed, air over Class F insulation, 6-pole, IP-556249

Air cooled 2, 3 or 4 rows 14 FPI (1.8mm) fin spacing, Cu tubes, Al fins1.77/1.77

27919

4361

723/213240 13400

1.8

92404210

2.7/2.7

723/2

164000

1.819.4

1.8

28923 31102

52013 52015

26.3

38240 41291

152000

44549 48066

130475

1.8/1.8

3.68/3.68

6324

3.87/3.87

24.4

2

8.11/8.11

2.4

0.75/2 0.75/2

2.3

72.03.7 5.0

982445

1

52032

22 2

6.8/4.6


1226

8.53/8.53

2

20237

1405

40.0 40.0 53.3

823/2 823/317360 16400 25200

1.5/41.5/41.5/3

829/436480

Compressor

6.8/6.8

52040

0.71/0.71

628/2

0.48/0.482.70

0.90

556 637

8


Table 2

ENGINEERING SPECIFICATIONS - 60 Hz

1). Cooling capacity at 95°F (35°C) ambient temperature according to AHRI-365.2). 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.

AUMR

BTUH

W

BTUH

W

Type -

Quantity -

US Gal

Liter

Type -

ft²

m²

Type -

Code / Quantity -

cfm

l/s

Type -

Size / Quantity kW

lbs

kg

-

lbs

kg

AUMR

BTUH

W

BTUH

W

Type -

Quantity -

US Gal

Liter

Type -

ft²

m²

Type -

Code / Quantity -

cfm

l/s

Type -

Size / Quantity kW

lbs

kg

-

lbs

kg

2942 3116685 721 907 983 1108 1237 1335 1413

2 2 2

Unit Operating Weight1511 1591 2001 2166 2443 2728

Number of Refrigerant Circuits 2 2 2 2 2

27.33/27.334.0/4.0 5.28/5.28 5.28/5.28 6.22/6.22 8.12/6.13 9.18/9.18 12.32/10.49 12.39/12.39

2.2/4 2.2/4

Refrigerant Operating Charge Ckt (A / B)8.8/8.8 11.63/11.63 11.63/11.63 13.7/13.7 17.92/13.52 20.23/20.23 27.16/23.14

20954 24428

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

2.2/2 2.2/2 2.2/3 2.2/3 2.2/3 2.2/3

9977 9448 14498 15036 14258 18264

829/4

Air Flow Rate21140 20020 30720 31860 30210 38700 44400 51760

6.7

Condenser Fan

Propeller direct drive 1150 RPM823/2 823/2 823/3 823/3 823/3 829/3 823/4

53.3 64.0 72.02.4 2.4 3.3 3.7 3.7 5.0 5.9

6.8/4.6 6.8/6.8

Condenser Coil


Face Area26.3 26.3 35.6 40.0 40.0

3.4/3.4 3.4/3.4 3.4/3.4 3.4/3.4 4.6/3.4 4.6/4.6

2

Oil Charge Ckt (A / B)0.9/0.9 0.9/0.9 0.9/0.9 0.9/0.9 1.22/0.9 1.22/1.22 1.8/1.22 1.8/1.8

156536

Compressor

Hermetic Scroll Compressor2 2 2 2 2 2 2

421790 478350 534100

63258 72167 81202 95479 109612 123620 140196Cooling Capacity (2)

215835 246235 277060 325775 373995

560000 625000

75615 86166 97304 112544 127491 143611 164127 183177

62042

Cooling Capacity (1) 258000 294000 332000 384000 435000 490000

83026 23026 82026 52026 22026ledoM

1244 1417300 322 413 445 437 464 564 642

1 2 2



8.53/8.532.9 3.6 3.9 5.9 3.01/3.01 5.9 3.68/3.68 3.87/3.87

1.1/2 1.1/2

Refrigerant Operating Charge Ckt (A / B)6.5 7.9 8.6 12.9 6.63/6.63 13.0 8.11/8.11

7391 7495


0.55/1 1.1/1 0.55/2 0.55/2 0.55/2 0.55/2

2553 3695 5286 5106 5106 5106

723/2

Air Flow Rate5410 7830 11200 10820 10820 10820 15660 15880

2.4

Condenser Fan


19.4 24.4 26.30.9 1.1 1.8 1.8 1.8 1.8 2.3

1.8/1.8 2.70

Condenser Coil

Air cooled 2, 3 or 4 rows 14 FPI (1.8mm) fin spacing, Cu tubes, Al fins

Face Area9.7 12.2 19.4 19.4 19.4

1.77 1.80 2.70 3.40 1.77/1.77 3.40

2

Oil Charge Ckt (A / B)0.47 0.48 0.71 0.90 0.47/0.47 0.90 0.48/0.48 0.71

49788

Compressor


125425 154065 169875


59670 77035 86485 112840 119340

180000 196000

20516 26377 29308 39273 41032 43376 52755 57444

61013 62014 62016


11026 11016 90016 80016 60016ledoM

62048 62052

AUMR

BTUH

W

BTUH

W

Type -

Quantity -

US Gal

Liter

Type -

ft²

m²

Type -

Code / Quantity -

cfm

l/s

Type -

Size / Quantity kW

lbs

kg

-

lbs

kg

AUMR

BTUH

W

BTUH

W

Type -

Quantity -

US Gal

Liter

Type -

ft²

m²

Type -

Code / Quantity -

cfm

l/s

Type -

Size / Quantity kW

lbs

kg

-

lbs

kg

2942 3116685 721 907 983 1108 1237 1335 1413

2 2 2



27.33/27.334.0/4.0 5.28/5.28 5.28/5.28 6.22/6.22 8.12/6.13 9.18/9.18 12.32/10.49 12.39/12.39

2.2/4 2.2/4

Refrigerant Operating Charge Ckt (A / B)8.8/8.8 11.63/11.63 11.63/11.63 13.7/13.7 17.92/13.52 20.23/20.23 27.16/23.14

20954 24428


2.2/2 2.2/2 2.2/3 2.2/3 2.2/3 2.2/3

9977 9448 14498 15036 14258 18264

829/4

Air Flow Rate21140 20020 30720 31860 30210 38700 44400 51760

6.7

Condenser Fan


53.3 64.0 72.02.4 2.4 3.3 3.7 3.7 5.0 5.9

6.8/4.6 6.8/6.8

Condenser Coil


Face Area26.3 26.3 35.6 40.0 40.0

3.4/3.4 3.4/3.4 3.4/3.4 3.4/3.4 4.6/3.4 4.6/4.6

2

Oil Charge Ckt (A / B)0.9/0.9 0.9/0.9 0.9/0.9 0.9/0.9 1.22/0.9 1.22/1.22 1.8/1.22 1.8/1.8

156536

Compressor


421790 478350 534100


215835 246235 277060 325775 373995

560000 625000

75615 86166 97304 112544 127491 143611 164127 183177

62042


83026 23026 82026 52026 22026ledoM

1244 1417300 322 413 445 437 464 564 642

1 2 2



8.53/8.532.9 3.6 3.9 5.9 3.01/3.01 5.9 3.68/3.68 3.87/3.87

1.1/2 1.1/2

Refrigerant Operating Charge Ckt (A / B)6.5 7.9 8.6 12.9 6.63/6.63 13.0 8.11/8.11

7391 7495


0.55/1 1.1/1 0.55/2 0.55/2 0.55/2 0.55/2

2553 3695 5286 5106 5106 5106

723/2

Air Flow Rate5410 7830 11200 10820 10820 10820 15660 15880

2.4

Condenser Fan


19.4 24.4 26.30.9 1.1 1.8 1.8 1.8 1.8 2.3

1.8/1.8 2.70

Condenser Coil

Air cooled 2, 3 or 4 rows 14 FPI (1.8mm) fin spacing, Cu tubes, Al fins

Face Area9.7 12.2 19.4 19.4 19.4

1.77 1.80 2.70 3.40 1.77/1.77 3.40

2

Oil Charge Ckt (A / B)0.47 0.48 0.71 0.90 0.47/0.47 0.90 0.48/0.48 0.71

49788

Compressor


125425 154065 169875


59670 77035 86485 112840 119340

180000 196000

20516 26377 29308 39273 41032 43376 52755 57444

61013 62014 62016


11026 11016 90016 80016 60016ledoM

62048 62052

9



Table 2

Table 3

IPIPIPI * * **P°F °C MBh kW kW MBh kW kW MBh kW kW MBh kW kW35 1.7 49.00 14.40 4.10 45.10 13.20 4.70 40.90 12.00 5.30 36.60 10.70 6.0040 4.4 53.70 15.70 4.20 49.40 14.50 4.80 45.00 13.20 5.40 40.50 11.90 6.0045 7.2 58.40 17.10 4.30 53.90 15.80 4.80 49.30 14.40 5.40 44.70 13.10 6.0050 10 63.30 18.60 4.30 58.60 17.20 4.90 53.70 15.80 5.50 49.00 14.40 6.1035 1.7 63.50 18.60 5.00 58.90 17.30 5.70 54.10 15.80 6.50 49.30 14.40 7.2040 4.4 69.50 20.40 5.10 64.50 18.90 5.80 59.40 17.40 6.60 54.30 15.90 7.3045 7.2 75.80 22.20 5.20 70.50 20.70 5.90 65.00 19.10 6.60 59.60 17.50 7.4050 10 82.60 24.20 5.30 76.90 22.50 6.00 71.10 20.80 6.80 65.30 19.10 7.5035 1.7 70.40 20.60 5.30 65.50 19.20 6.00 59.80 17.50 6.90 54.10 15.80 7.9040 4.4 76.90 22.50 5.30 71.50 20.90 6.10 65.50 19.20 7.00 59.50 17.40 8.0045 7.2 83.80 24.50 5.50 77.80 22.80 6.20 71.50 20.90 7.10 65.10 19.10 8.0050 10 91.00 26.70 5.60 84.60 24.80 6.40 77.90 22.80 7.20 71.30 20.90 8.0035 1.7 94.70 27.70 7.00 87.20 25.60 8.10 79.00 23.20 9.30 70.80 20.80 10.5040 4.4 103.60 30.40 7.10 95.60 28.00 8.20 86.80 25.50 9.40 78.20 22.90 10.6045 7.2 112.80 33.10 7.20 104.20 30.50 8.30 95.00 27.90 9.50 86.00 25.20 10.6050 10 122.40 35.90 7.30 113.30 33.20 8.40 103.70 30.40 9.60 94.30 27.60 10.7035 1.7 106.10 31.10 8.20 97.50 28.60 9.40 88.40 25.90 10.80 79.40 23.30 12.1040 4.4 115.90 34.00 8.30 106.60 31.20 9.60 96.90 28.40 10.90 87.40 25.60 12.2045 7.2 126.10 37.00 8.50 116.20 34.00 9.80 105.80 31.00 11.10 95.80 28.10 12.3050 10 136.80 40.10 8.70 126.20 37.00 10.00 115.30 33.80 11.30 104.80 30.70 12.5035 1.7 98.00 28.70 8.20 90.20 26.40 9.40 81.70 24.00 10.60 73.30 21.50 11.9040 4.4 107.30 31.50 8.40 98.90 29.00 9.50 89.90 26.30 10.80 81.00 23.70 12.0045 7.2 116.80 34.20 8.60 107.90 31.60 9.70 98.50 28.90 10.90 89.30 26.20 12.1050 10 126.60 37.10 8.70 117.20 34.30 9.90 107.50 31.50 11.10 98.00 28.70 12.3035 1.7 127.00 37.20 9.90 117.70 34.50 11.30 108.10 31.70 12.90 98.50 28.90 14.5040 4.4 138.90 40.70 10.10 129.00 37.80 11.50 118.80 34.80 13.10 108.60 31.80 14.7045 7.2 151.60 44.40 10.30 141.00 41.30 11.70 130.10 38.10 13.30 119.10 34.90 14.8050 10 165.20 48.40 10.50 153.90 45.10 12.00 142.20 41.70 13.50 130.60 38.30 15.0035 1.7 139.20 40.80 10.70 129.00 37.80 12.20 117.70 34.50 14.10 106.30 31.20 16.0040 4.4 151.80 44.50 10.90 140.70 41.20 12.40 128.70 37.70 14.40 116.90 34.30 16.2045 7.2 165.10 48.40 11.20 153.10 44.90 12.80 140.40 41.20 14.60 128.00 37.50 16.3050 10 179.30 52.50 11.60 166.40 48.80 13.10 153.00 44.90 14.80 140.00 41.00 16.4035 1.7 184.30 54.00 14.70 168.90 49.50 16.90 152.60 44.70 19.30 136.60 40.00 21.7040 4.4 201.20 59.00 15.00 184.80 54.20 17.20 167.50 49.10 19.60 150.70 44.20 21.8045 7.2 218.70 64.10 15.30 201.20 59.00 17.50 183.10 53.70 19.80 165.70 48.60 22.0050 10 237.00 69.50 15.50 218.50 64.00 17.70 199.60 58.50 20.10 181.70 53.20 22.2035 1.7 209.50 61.40 16.70 192.20 56.30 19.20 174.00 51.00 21.90 156.20 45.80 24.6040 4.4 228.60 67.00 17.10 210.00 61.60 19.60 190.80 55.90 22.30 172.00 50.40 24.8045 7.2 248.60 72.90 17.50 228.60 67.00 20.00 208.20 61.00 22.60 188.40 55.20 25.1050 10 269.40 79.00 17.90 248.20 72.70 20.50 226.60 66.40 23.10 206.10 60.40 25.5035 1.7 236.00 69.20 18.20 217.00 63.60 20.60 196.30 57.50 23.40 175.80 51.50 26.2040 4.4 257.70 75.50 18.60 237.00 69.50 21.10 214.90 63.00 23.80 193.20 56.60 26.5045 7.2 280.50 82.20 19.20 258.20 75.70 21.60 234.70 68.80 24.20 211.80 62.10 26.8050 10 304.60 89.30 19.90 280.60 82.20 22.20 255.60 74.90 24.70 231.50 67.90 27.1035 1.7 274.40 80.40 22.30 253.50 74.30 25.00 231.50 67.80 27.90 209.80 61.50 30.8040 4.4 299.00 87.60 22.90 276.40 81.00 25.60 253.00 74.10 28.40 230.00 67.40 31.2045 7.2 325.30 95.30 23.60 300.90 88.20 26.20 275.90 80.90 28.90 251.60 73.80 31.5050 10 352.60 103.40 24.50 326.50 95.70 26.90 299.90 87.90 29.30 274.40 80.40 31.7035 1.7 311.00 91.20 25.40 287.50 84.30 28.60 263.30 77.20 32.30 239.30 70.10 35.7040 4.4 339.70 99.60 26.10 314.20 92.10 29.30 288.10 84.40 32.90 262.50 76.90 36.2045 7.2 370.10 108.50 26.90 342.60 100.40 30.20 314.50 92.20 33.50 287.10 84.20 36.7050 10 401.90 117.80 27.90 372.20 109.10 31.00 342.30 100.30 34.20 313.20 91.80 37.2035 1.7 348.80 102.20 28.40 322.90 94.60 32.10 296.40 86.90 36.40 270.00 79.10 40.5040 4.4 381.80 111.90 29.10 353.50 103.60 32.90 324.70 95.20 37.10 296.20 86.80 41.1045 7.2 416.70 122.10 30.00 385.90 113.10 33.90 354.80 104.00 38.00 324.10 95.00 41.8050 10 453.10 132.80 31.10 419.90 123.10 34.90 386.50 113.30 38.90 353.70 103.70 42.6035 1.7 396.10 116.10 32.00 366.80 107.50 36.10 336.40 98.60 40.70 306.20 89.80 45.2040 4.4 433.10 126.90 32.70 401.20 117.60 36.80 368.30 107.90 41.40 335.90 98.40 45.8045 7.2 472.10 138.40 33.50 437.50 128.20 37.70 402.10 117.90 42.30 367.40 107.70 46.6050 10 513.20 150.40 34.20 475.80 139.50 38.60 437.80 128.30 43.30 400.70 117.50 47.5035 1.7 443.50 130.00 35.60 411.00 120.50 40.00 376.70 110.40 44.90 342.60 100.40 49.8040 4.4 484.50 142.00 36.30 449.10 131.60 40.70 412.10 120.80 45.70 375.70 110.10 50.5045 7.2 527.70 154.70 36.90 489.30 143.40 41.50 449.70 131.80 46.60 410.80 120.40 51.4050 10 573.60 168.10 37.30 531.90 155.90 42.20 489.40 143.40 47.60 447.90 131.30 52.40

105°F (40.6°C) 115°F (46.1°C) 125°F (51.7°C)Total Capacity Total Capacity Total Capacity

52010

52013

52036

52040

SSTCondensing Temperature °F (°C)

52024

Total Capacity

51005

51007

51008

51009

51012

ModelAUMR

95°F (35°C)

52044

52015

52019

52022

52028

52032

* 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 (14 -16) should be referred for the same.

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

Shaded values are at 120ºF (49ºC) condenser entering air temperature. Notes :

CAPACITY RATINGS - 50 Hz (R-410A)

10


Table 4

CAPACITY RATINGS - 60 Hz (R-410A)

°C MBh kW kW MBh kW kW MBh kW kW MBh kW kW35 1.7 59.20 17.40 5.20 54.50 16.00 5.80 49.50 14.50 6.60 44.60 13.10 7.3040 4.4 64.60 18.90 5.20 59.50 17.50 5.90 54.30 15.90 6.60 49.20 14.40 7.3045 7.2 70.20 20.60 5.30 64.90 19.00 5.90 59.50 17.40 6.60 54.20 15.90 7.3050 10 76.30 22.40 5.40 70.70 20.70 6.00 65.00 19.10 6.70 59.50 17.40 7.4035 1.7 75.20 22.00 6.00 69.60 20.40 6.90 63.90 18.70 7.90 58.10 17.00 8.9040 4.4 82.30 24.10 6.10 76.30 22.40 7.00 70.10 20.60 8.00 64.00 18.80 9.0045 7.2 89.80 26.30 6.30 83.40 24.50 7.20 76.80 22.50 8.20 70.30 20.60 9.1050 10 97.80 28.70 6.50 91.00 26.70 7.40 83.90 24.60 8.30 77.00 22.60 9.2035 1.7 83.50 24.50 6.70 77.80 22.80 7.50 72.00 21.10 8.40 66.20 19.40 9.4040 4.4 91.40 26.80 6.80 85.20 25.00 7.60 78.90 23.10 8.60 72.60 21.30 9.5045 7.2 99.90 29.30 6.90 93.10 27.30 7.70 86.20 25.30 8.70 79.30 23.20 9.6050 10 108.80 31.90 7.00 101.50 29.80 7.90 94.10 27.60 8.80 86.70 25.40 9.7035 1.7 112.50 33.00 8.60 103.50 30.30 9.80 93.70 27.50 11.30 84.00 24.60 12.7040 4.4 123.00 36.10 8.70 113.30 33.20 10.00 102.90 30.20 11.40 92.60 27.10 12.8045 7.2 133.90 39.20 8.90 123.50 36.20 10.10 112.60 33.00 11.50 101.90 29.90 12.9050 10 145.30 42.60 9.00 134.30 39.40 10.30 122.80 36.00 11.70 111.70 32.70 13.0035 1.7 125.90 36.90 10.00 115.50 33.80 11.50 104.50 30.60 13.10 93.70 27.50 14.7040 4.4 137.30 40.20 10.30 126.20 37.00 11.70 114.60 33.60 13.40 103.40 30.30 14.9045 7.2 149.40 43.80 10.50 137.40 40.30 12.00 125.20 36.70 13.60 113.30 33.20 15.0050 10 162.00 47.50 10.80 149.20 43.70 12.30 136.20 39.90 13.80 123.80 36.30 15.3035 1.7 118.50 34.70 10.30 109.10 32.00 11.70 99.00 29.00 13.20 89.10 26.10 14.7040 4.4 129.10 37.80 10.40 119.10 34.90 11.80 108.70 31.90 13.20 98.40 28.90 14.7045 7.2 140.40 41.10 10.60 129.80 38.00 11.90 119.10 34.90 13.30 108.50 31.80 14.6050 10 152.60 44.70 10.70 141.40 41.40 12.10 130.00 38.10 13.50 118.90 34.90 14.8035 1.7 150.30 44.10 12.00 139.20 40.80 13.70 127.70 37.40 15.80 116.20 34.10 17.8040 4.4 164.50 48.20 12.30 152.60 44.70 14.00 140.30 41.10 16.00 128.10 37.50 18.0045 7.2 179.70 52.70 12.60 166.90 48.90 14.40 153.60 45.00 16.30 140.50 41.20 18.2050 10 195.60 57.30 13.00 181.90 53.30 14.80 167.80 49.20 16.70 154.10 45.20 18.4035 1.7 164.70 48.30 13.60 153.30 44.90 15.30 141.70 41.50 17.30 130.20 38.20 19.1040 4.4 180.10 52.80 13.90 167.70 49.20 15.60 155.10 45.50 17.50 142.60 41.80 19.3045 7.2 196.60 57.60 14.10 183.00 53.70 15.90 169.30 49.60 17.80 155.70 45.60 19.6050 10 213.90 62.70 14.40 199.40 58.40 16.20 184.60 54.10 18.10 170.10 49.90 19.8035 1.7 217.60 63.80 18.20 199.10 58.30 20.80 179.70 52.70 23.70 160.90 47.20 26.4040 4.4 237.50 69.60 18.50 217.60 63.80 21.20 197.00 57.70 24.00 177.40 52.00 26.5045 7.2 257.90 75.60 18.90 236.80 69.40 21.60 215.30 63.10 24.30 195.10 57.20 26.8050 10 279.30 81.90 19.40 257.00 75.30 22.10 234.70 68.80 24.80 213.90 62.70 27.1035 1.7 248.20 72.80 20.50 227.20 66.60 23.60 205.40 60.20 26.80 184.10 54.00 30.0040 4.4 270.50 79.30 21.00 248.10 72.70 24.10 225.20 66.00 27.30 203.10 59.50 30.2045 7.2 293.90 86.10 21.60 270.00 79.10 24.60 245.70 72.00 27.70 222.50 65.20 30.6050 10 318.40 93.30 22.20 292.90 85.80 25.20 267.20 78.30 28.30 243.10 71.20 31.0035 1.7 279.30 81.90 22.30 256.20 75.10 25.40 231.60 67.90 28.70 207.50 60.80 31.9040 4.4 304.80 89.30 22.80 279.70 82.00 25.90 253.30 74.30 29.10 227.70 66.70 32.3045 7.2 331.70 97.20 23.40 304.60 89.30 26.40 276.40 81.00 29.60 249.40 73.10 32.6050 10 359.80 105.50 24.00 330.70 96.90 27.00 300.80 88.20 30.20 272.60 79.90 33.0035 1.7 324.90 95.20 27.40 299.70 87.80 30.60 273.50 80.20 34.10 248.00 72.70 37.4040 4.4 353.60 103.60 28.10 326.50 95.70 31.40 298.70 87.60 34.80 271.90 79.70 38.0045 7.2 383.90 112.50 28.90 354.70 104.00 32.10 325.10 95.30 35.50 296.70 87.00 38.6050 10 415.60 121.80 29.60 384.30 112.60 32.90 352.80 103.40 36.20 322.90 94.60 39.3035 1.7 369.80 108.40 31.30 341.70 100.20 35.10 312.90 91.70 39.20 284.60 83.40 43.0040 4.4 403.60 118.30 32.20 373.20 109.40 36.00 342.30 100.30 40.00 312.20 91.50 43.7045 7.2 439.00 128.70 33.20 406.30 119.10 36.90 373.20 109.40 40.80 341.10 100.00 44.4050 10 476.10 139.60 34.20 440.90 129.20 37.90 405.70 118.90 41.70 371.60 108.90 45.2035 1.7 414.40 121.40 35.30 383.40 112.40 39.60 352.00 103.20 44.30 320.90 94.10 48.7040 4.4 453.20 132.80 36.40 419.60 123.00 40.70 385.60 113.00 45.20 352.10 103.20 49.4045 7.2 493.70 144.70 37.50 457.40 134.10 41.80 420.80 123.30 46.20 385.00 112.90 50.2050 10 536.10 157.10 38.80 497.10 145.70 43.00 458.00 134.20 47.30 419.90 123.10 51.1035 1.7 470.60 137.90 39.80 435.80 127.70 44.50 400.10 117.30 49.60 364.90 106.90 54.5040 4.4 514.20 150.70 40.90 476.30 139.60 45.60 437.70 128.30 50.60 399.90 117.20 55.4045 7.2 559.90 164.10 42.10 518.80 152.10 46.90 477.30 139.90 51.80 436.70 128.00 56.4050 10 607.60 178.10 43.60 563.40 165.10 48.30 519.00 152.10 53.20 475.70 139.40 57.6035 1.7 526.10 154.20 44.30 487.60 142.90 49.50 447.60 131.20 55.00 408.20 119.60 60.4040 4.4 574.40 168.40 45.50 532.40 156.00 50.70 489.20 143.40 56.10 446.90 131.00 61.4045 7.2 625.20 183.20 46.70 579.50 169.80 52.00 533.00 156.20 57.50 487.70 142.90 62.7050 10 678.10 198.70 48.40 628.70 184.30 53.80 579.00 169.70 59.30 530.70 155.50 64.30

62052

SSTCondensing Temperature °F (°C)

62025

62032

62038

62042

62048

Total Capacity

62011

62014

62016

62022

62028

Total Capacity

61006

61008

61009

61011

61013

125°F (51.7°C)Total Capacity Total Capacity

ModelAUMR

95°F (35°C) 105°F (40.6°C) 115°F (46.1°C)IPIPIPI * * **P

°F

* 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 (14 -16) should be referred for the same.

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

Shaded values are at 120ºF (49ºC) condenser entering air temperature. Notes :

11



Standard Number of steps

51005 61006 10-001

51007 61008 10-001

51008 61009 10-00151009 61011 10-00152010 62011 20-05-00151012 61013 10-00152013 62014 20-05-00152015 62016 20-05-00152019 62022 20-05-00152022 62025 20-05-00152024 62028 20-05-00152028 62032 20-05-00152032 62038 20-65-00152036 62042 20-05-00152040 62048 20-55-00152044 62052 20-05-001

ModelAUMR

Capacity Control Steps

The Standard Capacity Control Steps are shown below.

Table 5

Selection Procedure Example

The following information should be determined:

1. Required total capacity = 430 MBh (125.9 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 5 at 115°F (46°C) condenser entering air temperature and select model AUMR 52040 having a cooling capacity of 437.8 MBh (128.3 kW) at 50°F (10°C) saturated suction temperature, compressor motor power input is 43.3 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 6).

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 6

12


Field ConnectionsAUMR 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 unit as per Electrical hook-up diagram is all that is required to electrically connect any model of AUMR series .

Every AUMR series condensing unit requires, at most, field installed fused disconnect switches or circuit breakers, and room unit.

Refer below for a schematic representation of required field electrical hook-ups for a standard AUMR 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 14 - 16 of this bulletin.

The AUMR 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

AUMR -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

~۳M

(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

AUMR 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 '.

**

-CE+

+CE-

ROOM UNIT(LOOSESUPPLY)

2 CORE UNSCREENED TWISTED PAIR CABLE

(BY OTHERS)

AS PER KNX SPECIFICATION (BY OTHERS)

CE+

CE-

13



Typical Wiring Diagram

MAT

CHIN

GAH

UFO

R

CR5

INTE

RLOC

KEF

MST

ARTE

R

VOLT

FREE

CONT

ACT

TO

MPC

B4

24V= Q73

ETFR

220~240V

24V

COMP.-1 C1

COMP.-2 C2

CFM2

CFM1 C3C4

MIC

ROPR

OCES

SSORM T10

CONT

ROLL

ER

G0

_ 24~T8

Q12T9

Q11Q14

M

T1B1

B3MB2

T2X1

Q43

Q24Q21Q22

Q33Q34

Q53

Q44T11

Q54Q64

X4

24V=5V=

X2

X3M

M

T3X5

5V=X6

MCB

2

MCB

1

N** L1 L3L2

NL1

DISC.PRESSURE-1IGCR

2

DISC.PRESSURE-2IGCR

1

LPS-1

LPS-2

CFM

1

C3

CFM2

C4

CFM

3

C5

POW

ERSU

PPLY

MPC

B1

I>I>

MPC

B2

I>I>

I>I>

I>

MPC

B3

I>I>

PBRS

485

_24

~

C2

CCH2

CFM3

CFM4

C5C6

EFM CR5

HPS-2

HPS-1

CCH1

T6T-IP

D02

T12

Q74Q84

CD01

DN

T13DL1

DL2

ESC

M

MX7

T4X8

D1

INFO

T5DU1

D2

DU2DG

T-HI

C1

CE-

OK

REF

A+B-

CE+T7

ASPE

RKN

XSP

ECIFI

CATO

N

2COR

EUN

SCRE

ENED

TWIS

TED

PAIR

CABL

E

CFM4

C6

+-

ROOM

UNIT

(LOO

SESU

PPLY

)

I>I>

I>

CSCR

6

RUN/STOP

FANINTERLOCK

CR3LSV-1

LSV-2 CR4

FANINTERLOCK

CR6

(BYOTHERS)

LSV-

1LS

V-2

CR4

CR3

(BY

OTHE

RS)

CR1

MPM

1

T21

T1M

1S2

M2S

CM1

21L

L3L

C1

CR2

CM2L

MPM

2

T2M

T12

1M

21S

S

1L

C2

23L

**

ComVM

MC

BA NC

NO

F

VMM

380/3

/60,4

wire

powe

rsup

plies

.Ty

pical

wirin

gdiag

ramgiv

enhe

reis

forun

itswi

th38

0~41

5/3/50

orNO

TE:-

* Wirin

gdiag

ramsf

or44

0/3/5

0,22

0/3/6

0or4

60/3/

60* po

wers

uppli

esare

avail

able

onreq

uest.

CXTo

ption

isam

ust.

For4

40/3/

50or

460/

3/60o

rpow

ersu

pplie

swith

outn

eutra

l,* CM

CONT

ROL

RELA

YCR

COM

PRES

SOR

MOT

OR

HIGH

PRES

SURE

SWITC

HLO

WPR

ESSU

RESW

ITCH

HPS

LPS

FIELD

WIR

ING

TRAN

SFOR

MER

CONT

ACTO

RCO

NTRO

LSW

ITCH

MINI

ATUR

ECI

RCUI

TBRE

AKER

CRAN

KCA

SEHE

ATER

COND

ENSE

RFA

NM

OTOR

C MCB

CFM

CCH

TFR

CS

LIQUI

DLIN

ESOL

ENOI

DVA

LVE

MOT

ORPR

OTEC

TOR

CIRC

UTBR

EAKE

ROV

ERLO

ADRE

LAY

EVAP

ORAT

ORFA

NMOT

OR

MOT

ORPR

OTEC

TOR

MOD

ULE

OL LSV

EFM

LE

GE

ND

MPM

MPC

B

MPM

Modu

leis

nota

vaila

blein

some

small

comp

resso

rs.*

VOLT

AGE

MON

ITOR

ING

MOD

ULE

VMM

14


Table 7

Table 8

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 LRA51005 32 16.1 78 1 12 74 1 1.1 3.951007 40 19.9 110 1 14 101 1 2.4 8.951008 40 22.2 100 1 16 95 2 1.1 3.951009 50 27.2 123 1 20 118 2 1.1 3.952010 50 29.2 91 1 + 1 12 + 12 74 + 74 2 1.1 3.951012 50 28.45 123 1 21 118 2 1.1 3.952013 50 36.3 126 1 + 1 14 + 14 101 + 101 2 2.4 8.952015 63 40.8 122 1 + 1 16 + 16 95 + 95 2 2.4 8.952019 80 52.8 159 1 + 1 20 + 20 118 + 118 2 3.9 17.252022 80 55.05 160 1 + 1 21 + 21 118 + 118 2 3.9 17.252024 100 67.95 190 1 + 1 25 + 25 140 + 140 3 3.9 17.252028 125 76.95 228 1 + 1 29 + 29 174 + 174 3 3.9 17.252032 125 83.2 279 1 + 1 34 + 29 225 + 174 3 3.9 17.252036 125 88.2 284 1 + 1 34 + 34 225 + 225 3 3.9 17.252040 160 108.35 335 1 + 1 47 + 34 272 + 225 4 3.9 17.252044 200 121.35 348 1 + 1 47 + 47 272 + 272 4 3.9 17.2

er Supply: 380V-415V/3PH/50Hz

Unit Characteristic Compressor Condenser Fan Motor

MFA MCA ICF

ModelAUMR

ELECTRICAL DATA

ELECTRICAL DATA

QTY RLA LRA QTY FLA LRA51005 32 15.95 77 1 12 74 1 0.95 3.451007 40 19.6 109 1 14 101 1 2.1 7.651008 40 21.9 99 1 16 95 2 0.95 3.451009 50 26.9 122 1 20 118 2 0.95 3.452010 50 28.9 90 1 + 1 12 + 12 74 + 74 2 0.95 3.451012 50 28.15 122 1 21 118 2 0.95 3.452013 50 35.7 125 1 + 1 14 + 14 101 + 101 2 2.1 7.652015 63 40.2 121 1 + 1 16 + 16 95 + 95 2 2.1 7.652019 80 52 156 1 + 1 20 + 20 118 + 118 2 3.5 14.752022 80 54.25 157 1 + 1 21 + 21 118 + 118 2 3.5 14.752024 100 66.75 187 1 + 1 25 + 25 140 + 140 3 3.5 14.752028 125 75.75 225 1 + 1 29 + 29 174 + 174 3 3.5 14.752032 125 82 276 1 + 1 34 + 29 225 + 174 3 3.5 14.752036 125 87 281 1 + 1 34 + 34 225 + 225 3 3.5 14.752040 160 106.75 331 1 + 1 47 + 34 272 + 225 4 3.5 14.752044 200 119.75 344 1 + 1 47 + 47 272 + 272 4 3.5 14.7

Power Supply: 440V/3PH/50Hz


MFA MCA ICF

ModelAUMR

15



ELECTRICAL DATA

Table 9

Table 10






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

ELECTRICAL DATA

QTY RLA LRA QTY FLA LRA61006 32 16.3 80 1 12 75 1 1.3 5.261008 40 20.6 112 1 14 100 1 3.1 11.861009 40 22.6 102 1 16 95 2 1.3 5.261011 50 27.6 132 1 20 125 2 1.3 5.262011 50 29.6 94 1 + 1 12 + 12 75 + 75 2 1.3 5.261013 50 28.85 132 1 21 125 2 1.3 5.262014 63 37.7 129 1 + 1 14 + 14 100 + 100 2 3.1 11.862016 63 42.2 126 1 + 1 16 + 16 95 + 95 2 3.1 11.862022 80 55 171 1 + 1 20 + 20 125 + 125 2 5 21.062025 80 57.25 172 1 + 1 21 + 21 125 + 125 2 5 21.062028 100 71.25 206 1 + 1 25 + 25 150 + 150 3 5 21.062032 125 80.25 239 1 + 1 29 + 29 179 + 179 3 5 21.062038 125 86.5 285 1 + 1 34 + 29 225 + 179 3 5 21.0

62042 160 91.5 290 1 + 1 34 + 34 225 + 225 3 5 21.062048 160 112.75 342 1 + 1 47 + 34 272 + 225 4 5 21.062052 200 125.75 355 1 + 1 47 + 47 272 + 272 4 5 21.0


ModelAUMR


MFA MCA ICF

ELECTRICAL DATA

QTY RLA LRA QTY FLA LRA61006 32 16.5 93 1 12 88 1 1.5 4.561008 40 23.1 104 1 16 94 1 3.1 9.661009 50 26.75 129 1 19 123 2 1.5 4.561011 63 35.5 151 1 26 145 2 1.5 4.562011 50 30 106 1 + 1 12 + 12 88 + 88 2 1.5 4.561013 63 35.5 151 1 26 145 2 1.5 4.562014 63 42.2 123 1 + 1 16 + 16 94 + 94 2 3.1 9.662016 80 48.95 155 1 + 1 19 + 19 123 + 123 2 3.1 9.662022 100 69.1 194 1 + 1 26 + 26 145 + 145 2 5.3 17.562025 100 69.1 194 1 + 1 26 + 26 145 + 145 2 5.3 17.562028 125 76.65 193 1 + 1 27 + 27 138 + 138 3 5.3 17.562032 160 101.4 262 1 + 1 38 + 38 196 + 196 3 5.3 17.562038 160 107.65 356 1 + 1 43 + 38 290 + 196 3 5.3 17.562042 160 112.65 361 1 + 1 43 + 43 290 + 290 3 5.3 17.562048 200 136.7 429 1 + 1 58 + 43 353 + 290 4 5.3 17.562052 250 151.7 444 1 + 1 58 + 58 353 + 353 4 5.3 17.5



MFA MCA ICF

ModelAUMR

16


Table 11

ELECTRICAL DATA ELECTRICAL DATA

QTY RLA LRA QTY FLA LRA61006 63 33.75 157 1 25 149 1 2.5 7.561008 80 40.4 181 1 28 164 1 5.4 16.761009 80 46.25 205 1 33 195 2 2.5 7.561011 100 51.25 249 1 37 239 2 2.5 7.562011 100 61.25 184 1 + 1 25 + 25 149 + 149 2 2.5 7.561013 160 72.5 255 1 54 245 2 2.5 7.562014 125 73.8 214 1 + 1 28 + 28 164 + 164 2 5.4 16.762016 125 85.05 250 1 + 1 33 + 33 195 + 195 2 5.4 16.762022 160 101.25 315 1 + 1 37 + 37 239 + 239 2 9 29.762025 200 139.5 338 1 + 1 54 + 54 245 + 245 2 9 29.762028 250 155.25 405 1 + 1 57 + 57 300 + 300 3 9 29.762032 250 166.5 450 1 + 1 62 + 62 340 + 340 3 9 29.762038 315 191.5 615 1 + 1 82 + 62 505 + 340 3 9 29.762042 315 211.5 635 1 + 1 82 + 82 505 + 505 3 9 29.762048 400 236.75 744 1 + 1 95 + 82 605 + 505 4 9 29.762052 400 249.75 757 1 + 1 95 + 95 605 + 605 4 9 29.7



MFA MCA ICF

ModelAUMR

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 .

17



Dimensional Data

[203]

AUMR-MODEL

61006

5100761008

51005

ALL DIMENSIONS ARE IN INCHESFOR LINE SIZES REFER TO PAGE NO :-

[152

]6

Ø.79 x 4 Nos.RIGGING HOLES

[20]

51.6

5[1

312]

[100

]3.

94

4

2

ACCESS

[415

]

[178

]

4[102]8

7

16.3

SUCTIONØ

LIQUIDØ

1

A2

L

A4

ModelsAUMR- 51005A, 51007A & 61006A, 61008A

[152

]

W

6A1 A3

4 COMPRESSOR

3

W

[mm]

34[864]

45[1143]

DIMENSIONSL W CONDENSER FAN

CONDENSER COILCONTROL PANEL3

2

LEGEND

1

FOR CABLE ENTRY

ACCESS

DETACHABLE PLATE

FILTEREDVENTILATIONON BOTH SIDES

[1422]5638

[965]

VENTILATIONON BOTH SIDES

PLATE FORCABLE ENTRY

DETACHABLE

FILTERED

4

3 1

LIQ.Ø

SUC.Ø

2

[20]

ACCESS

A2

A1

A4

A3

Ø0.79 4 Nos.RIGGING HOLES

10[254]

68[1727]

8[203]

7[1

78]

12 [305

]

51.6

5[1

312]

3.9

[100

]

45[1143]

10[254]LEGEND

COMPRESSORCONTROL PANELCONDENSER COILCONDENSER FAN

2

43

1


[mm]

CERTIFIED DRAWINGS AREAVAILABLE ON REQUEST

ModelsAUMR- 51008A, 51009A, 51012A & 61009A, 61011A, 61013A

AUMR Models: 51005 , 51007 & 61006 , 61008

[203]

AUMR-MODEL

61006

5100761008

51005


[152

]6


[20]

51.6

5[1

312]

[100

]3.

94

4

2

ACCESS

[415

]

[178

]

4[102]8

7

16.3

SUCTIONØ

LIQUIDØ

1

A2

L

A4

ModelsAUMR- 51005A, 51007A & 61006A, 61008A

[152

]

W

6A1 A3

4 COMPRESSOR

3

W

[mm]

34[864]

45[1143]

DIMENSIONSL W CONDENSER FAN

CONDENSER COILCONTROL PANEL3

2

LEGEND

1

FOR CABLE ENTRY

ACCESS

DETACHABLE PLATE

FILTEREDVENTILATIONON BOTH SIDES

[1422]5638

[965]

VENTILATIONON BOTH SIDES

PLATE FORCABLE ENTRY

DETACHABLE

FILTERED

4

3 1

LIQ.Ø

SUC.Ø

2

[20]

ACCESS

A2

A1

A4

A3

Ø0.79 4 Nos.RIGGING HOLES

10[254]

68[1727]

8[203]

7[1

78]

12 [305

]

51.6

5[1

312]

3.9

[100

]

45[1143]

10[254]LEGEND

COMPRESSORCONTROL PANELCONDENSER COILCONDENSER FAN

2

43

1


[mm]

CERTIFIED DRAWINGS AREAVAILABLE ON REQUEST

ModelsAUMR- 51008A, 51009A, 51012A & 61009A, 61011A, 61013AAUMR Models: 51008 , 51009 , 51012 & 61009 , 61011 , 61013

18


Dimensional Data

C

4[102]

4[102]

10[254]

10[254]

10[254]

10[254]

L

H

3.94

[100

]

88[2235]

A

7[1

78]

10[254]

4[102]

10[254]

4[102]

B


[20]

[20]RIGGING HOLESØ.79 x 4 Nos.

2

DETACHABLE PLATEFOR CABLE ENTRY

2

3

PLATE FORDETACHABLE

FILTERED

ON BOTH SIDESVENTILATION

FILTEREDVENTILATION

ON BOTH SIDES

51.6

5[1

312]

CABLE ENTRY

AUMR-

62011

52013

5201562016

62014

52010

MODEL

6202252019 12

[305]

[1473]

58[1473]

[1143]

58

45

[415][1930]

76[1930]

12[305]

[1727]

76

68[415]

16.3

16.3

LDIMENSIONS

W A

[254]

[203]

10

8

C

C

125202262025 [305]

[2133]84

[1473]58

[2133]84

[1473]58

[254]10

[254]10

[254]10

AVAILABLE ON REQUESTCERTIFIED DRAWINGS ARE

[305]12

[305]12

[305]12

[305]12

Models AUMR- 52010A, 52013A, 52015A, 52019A, 52022A &62011A, 62014A, 62016A, 62022A, 62025A

LEGEND

123

ACCESS

72.65[1845]


H

52.65

[1540]60.65

[1540]60.65

[1337]

805203662042 [2032]

MODEL

52024

62032

6203852032

52028

62028

AUMR-

80

[1930]76

[1930]76

[2032]

L

12.7112.71

[mm]

[323] [323]

12.71[323]

12[305]

DIMENSIONSA B

SUC.Ø#2

LIQ.Ø#2

SUC.Ø#2

LIQ.Ø#2

ACCESS

A2 A4

A1 A3

L

3.94

[100

]

W7

[178

]

A

Models AUMR- 52024A to 52036A & 62028A to 62042A

LIQ.Ø#1

SUC.Ø#1

4

A2

A1

1

A4

A3

FOR LINE SIZES REFER TO PAGE NO :-ALL DIMENSIONS ARE IN INCHES

4 COMPRESSOR

4

[mm]

13

LIQ.Ø#1

SUC.Ø#1

CONTROL PANELCONDENSER COILCONDENSER FAN

C

4[102]

4[102]

10[254]

10[254]

10[254]

10[254]

L

H

3.94

[100

]

88[2235]

A

7[1

78]

10[254]

4[102]

10[254]

4[102]

B


[20]

[20]RIGGING HOLESØ.79 x 4 Nos.

2

DETACHABLE PLATEFOR CABLE ENTRY

2

3

PLATE FORDETACHABLE

FILTERED


FILTEREDVENTILATION

ON BOTH SIDES

51.6

5[1

312]

CABLE ENTRY

AUMR-

62011

52013

5201562016

62014

52010

MODEL

6202252019 12

[305]

[1473]

58[1473]

[1143]

58

45

[415][1930]

76[1930]

12[305]

[1727]

76

68[415]

16.3

16.3

LDIMENSIONS

W A

[254]

[203]

10

8

C

C

125202262025 [305]

[2133]84

[1473]58

[2133]84

[1473]58

[254]10

[254]10

[254]10

AVAILABLE ON REQUESTCERTIFIED DRAWINGS ARE

[305]12

[305]12

[305]12

[305]12

Models AUMR- 52010A, 52013A, 52015A, 52019A, 52022A &62011A, 62014A, 62016A, 62022A, 62025A

LEGEND

123

ACCESS

72.65[1845]


H

52.65

[1540]60.65

[1540]60.65

[1337]

805203662042 [2032]

MODEL

52024

62032

6203852032

52028

62028

AUMR-

80

[1930]76

[1930]76

[2032]

L

12.7112.71

[mm]

[323] [323]

12.71[323]

12[305]

DIMENSIONSA B

SUC.Ø#2

LIQ.Ø#2

SUC.Ø#2

LIQ.Ø#2

ACCESS

A2 A4

A1 A3

L

3.94

[100

]

W7

[178

]

A

Models AUMR- 52024A to 52036A & 62028A to 62042A

LIQ.Ø#1

SUC.Ø#1

4

A2

A1

1

A4

A3


4 COMPRESSOR

4

[mm]

13

LIQ.Ø#1

SUC.Ø#1

CONTROL PANELCONDENSER COILCONDENSER FAN

AUMR Models: 52024 - 52036 & 62028 - 62042

AUMR Models: 52010 , 52013 , 52015 , 52019 , 52022 & 62011 , 62014 , 62014 , 62016 , 62022 , 62025

19



Dimensional Data

LIQ.Ø#1

SUC.Ø#1

Models AUMR- 52040A, 52044A & 62048A, 62052A

4

A2

2

1

A4

A1 A3

SUC.Ø# 2

LIQ.Ø#2


ACCESS

[mm]

DIM ENSIONSM ODELAUM R-

62048

5204462052

52040[1972]

85.63[2175]

77.63

H CONDENSER FANCONDENSER COILCONTROL PANELCOMPRESSOR

LE GEND

2

43

1

88[2235]

84[2 134]

4[1 02]

8[2

03]

13.7

[348

]

10[254]

13.7

[348

]

4[102 ]

10[254]

8[2

03]

10[254]

10[254]

[20]Ø.79 4 Nos.RIGGING HOLES

4.92

[125

]H

CABLE ENTRY

DETACHABLEPLATE FOR

FILTERED


3

AUMR Models: 52040 , 52044 & 62048 , 62052

LOADING POINTS - 50Hz LOADING POINTS - 60Hz

Table 12 Table 13

4A3A2A1A4A3A2A1A166361891931161.bI856161891931161.bI00347093637.gK99237093637.gK807081422431961.bI207971222231961.bI223282011677.gK913181010677.gK119091403091722.bI409781203781722.bI3146883168301.gK0145873158301.gK189702223702542.bI289702223702542.bI5444964149111.gK5444964149111.gK469302813302142.bI659102613102832.bI7342944129901.gK3341934119801.gK3201212443212652.bI4201212443212652.bI

4646965169611.gK4646965169611.gK4421762993762113.bI6221262593262603.bI

465121181121141.gK655911971911931.gK7141533314533333.bI5041333804333133.bI

246251781251151.gK736151581151051.gK1151263234263553.bI7941753034753353.bI

586461691461161.gK976261591261061.gK1951183254283573.bI0851973054973273.bI

127371502371071.gK717271402271961.gK1002074074184085.bI9791564564574475.bI

709312312812362.gK798112112512062.gK6612705705725526.bI4412305305025816.bI389032032932482.gK379822822632182.gK3442646855285756.bI1242246355675056.bI 8011392352462892.gK8901192152162592.gK8272017017406307.bI4072607607895596.bI7321223223472913.gK7221023023172613.gK2492747527666408.bI3192937917956697.bI5331933923203563.gK1231533623992163.gK6113457457407409.bI9803747747796798.bI3141243243913014.gK1041933933613704.gK

52024

51005

52010

51007

52015

52019

52022

51012

52013

TOTALWEIGHT

LOADING POINTS TOTALWEIGHT

ModelAUMR

61011

61013

61006

61008

LOADING POINTS

52044

52028

52032

UNIT

52040

52036

ModelAUMR

51008

51009

61009

62014

62016

62022

62032

62052

62011

62038

62042

62048

62025

62028

UNIT4A3A2A1A4A3A2A1A

166361891931161.bI856161891931161.bI00347093637.gK99237093637.gK807081422431961.bI207971222231961.bI223282011677.gK913181010677.gK119091403091722.bI409781203781722.bI3146883168301.gK0145873158301.gK189702223702542.bI289702223702542.bI5444964149111.gK5444964149111.gK469302813302142.bI659102613102832.bI7342944129901.gK3341934119801.gK3201212443212652.bI4201212443212652.bI

4646965169611.gK4646965169611.gK4421762993762113.bI6221262593262603.bI

465121181121141.gK655911971911931.gK7141533314533333.bI5041333804333133.bI

246251781251151.gK736151581151051.gK1151263234263553.bI7941753034753353.bI

586461691461161.gK976261591261061.gK1951183254283573.bI0851973054973273.bI

127371502371071.gK717271402271961.gK1002074074184085.bI9791564564574475.bI

709312312812362.gK798112112512062.gK6612705705725526.bI4412305305025816.bI389032032932482.gK379822822632182.gK3442646855285756.bI1242246355675056.bI 8011392352462892.gK8901192152162592.gK8272017017406307.bI4072607607895596.bI7321223223472913.gK7221023023172613.gK2492747527666408.bI3192937917956697.bI5331933923203563.gK1231533623992163.gK6113457457407409.bI9803747747796798.bI3141243243913014.gK1041933933613704.gK

52024

51005

52010

51007

52015

52019

52022

51012

52013

TOTALWEIGHT

LOADING POINTS TOTALWEIGHT

ModelAUMR

61011

61013

61006

61008

LOADING POINTS

52044

52028

52032

UNIT

52040

52036

ModelAUMR

51008

51009

61009

62014

62016

62022

62032

62052

62011

62038

62042

62048

62025

62028

UNIT

20


61006 ,61008 AUMR -51008- 52022 & 61009 - 62025 AUMR -52024 - 52036 & 62028 - 62042

SPACING FOR SERVICE AND ACCESS

AA

B B

BB

A A B B

A

SPACING FOR AIR FLOW

BB

C

MULTIPLE UNIT INSTALLATION

A

C

B

A B B

AUMR -51005 , 51007 & 61006, 61008

61009 -62052AUMR -51008 -52044 &

AA B B

62048 , 62052AUMR -52040 , 52044 &

AUMR - 51005, 51007 &

SINGLE UNIT INSTALLATION

Location and Space Requirements

Location and Space RequirementsDue to the vertical air flow discharge condenser design, it is recommended that certain precautions are to be taken before installation. There should be no obstruction on the air flow.

Orient the unit so that prevailing winds blow parallel to the unit length thus minimizing the effects on condensing pressure. If it is not practical to orient the unit in this manner, a wind deflecting shield should be considered.

It is also necessary to provide adequate clearance on all sides of the unit for service access and satisfactory performance. This will prevent excessive condensing temperatures and enhance system performance and operating economy.

A flat concrete foundation or floor which can support the weight of the equipment must be 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.

The isolators must be designed for the operating weight of the unit. For operating load points refer to Loading Points Data (page No.19).Correct selection of types of isolators depends upon application and structure.

51005 61006 4251007 61008 5051008 61009

51009 61011

52010 62011

51012 61013

52013 62014 5052015 62016

52019 62022

52022 62025

52024 62028 7052028 62032

52032 62038

52036 62042 60 70 9052040 62048 64 9652044 62052 72 108

78

42

60

A B C

40

54

48 66 72

ModelAUMR

Table 14

21


SKM Air Cooled Condensing UnitsAUMR Series - R-410ATypical Refrigeration PipingLegend

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

Single Circuit Unit Shown. For Dual circuit units, piping of second circuit is similar.

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 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-410A 1°F (0.55°C) sub cooling must be allowed for each 10 ft (3m) vertical rise in order to avoid flash gas forming due to the weight of the column of liquid refrigerant.

SKM AUMR Series units are designed with a sub cooling circuit enough to sub cool the liquid 10°F (5.55 °C), which gives the liquid maximum 100 ft. (30m) 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 AUMR Series, the DX coil selection in a MAH or other air handler from SKM should be based on total capacity. For dual circuit AUMR 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 AUMR 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 AUMR Series model.

4

7

5

6

DOUBLE SUCTION RISERDOTTED IN CASE OF

3

2

1

AHU

AIRFLOW

UNIT (AUMR )CONDENSING

3

6

7

5

4

AHU

FLOWAIR

2

1

CONDENSINGUNIT (AUMR )

22


Recommended Refrigerant Line Sizes - 50Hz & 60HZ

SKM AUMR Series Condensing Units are designed for satisfactory operation with single suction line.1. Suction Line sizing selection recommendation in Table 15 & 16 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 15 & 16 is based on 2ºF temperature drop.4. Recommended line sizes in Table 15 & 16 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.

ModelAUMR

ModelAUMR

25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft51005 8/78/78/78/72/12/12/18/351007 8/1 18/1 18/78/72/12/12/18/351008 8/1 18/1 18/78/72/12/12/12/151009 8/1 18/1 18/1 18/78/58/52/12/152010 3/8 1/2 1/2 1/2 3/8 1/2 1/2 1/2 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/851012 8/3 18/3 18/3 18/3 18/58/52/12/152013 3/8 1/2 1/2 1/2 3/8 1/2 1/2 1/2 7/8 7/8 1 1/8 1 1/8 7/8 7/8 1 1/8 1 1/852015 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 7/8 7/8 1 1/8 1 1/8 7/8 7/8 1 1/8 1 1/852019 1/2 1/2 5/8 5/8 1/2 1/2 5/8 5/8 7/8 1 1/8 1 1/8 1 1/8 7/8 1 1/8 1 1/8 1 1/852022 1/2 1/2 5/8 5/8 1/2 1/2 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/852024 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/852028 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/852032 5/8 5/8 7/8 7/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 3/852036 5/8 5/8 7/8 7/8 5/8 5/8 7/8 7/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/852040 5/8 7/8 7/8 7/8 5/8 5/8 7/8 7/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/852044 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8

25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft61006 8/1 18/1 18/78/72/12/12/18/361008 8/1 18/1 18/1 18/72/12/12/18/361009 8/1 18/1 18/1 18/78/52/12/12/161011 8/3 18/1 18/1 18/1 18/58/58/52/162011 3/8 1/2 1/2 1/2 3/8 1/2 1/2 1/2 7/8 7/8 1 1/8 1 1/8 7/8 7/8 1 1/8 1 1/861013 8/3 18/3 18/3 18/3 18/58/58/52/162014 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 7/8 1 1/8 1 1/8 1 1/8 7/8 1 1/8 1 1/8 1 1/862016 1/2 1/2 1/2 5/8 1/2 1/2 1/2 5/8 7/8 1 1/8 1 1/8 1 1/8 7/8 1 1/8 1 1/8 1 1/862022 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 1/8 1 1/8 1 1/8 1 3/8 1 1/8 1 1/8 1 1/8 1 3/862025 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/862028 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/862032 5/8 5/8 5/8 7/8 5/8 5/8 5/8 7/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/862038 5/8 7/8 7/8 7/8 5/8 5/8 5/8 7/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 3/8 1 3/862042 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/862048 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1 3/8 1 5/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/862052 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1 3/8 1 5/8 1 5/8 1 5/8 1 3/8 1 5/8 1 5/8 1 5/8

2 tiucriC1 tiucriC2 tiucriC1 tiucriC

1 tiucriC2 tiucriC1 tiucriC Liquid Line, InchesMode sehcnI ,eniL noitcuS1 tiucriC l

Liquid Line, InchesMode sehcnI ,eniL noitcuS1 tiucriC l

Circuit 2ModelAUMR

ModelAUMR

25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft51005 8/78/78/78/72/12/12/18/351007 8/1 18/1 18/78/72/12/12/18/351008 8/1 18/1 18/78/72/12/12/12/151009 8/1 18/1 18/1 18/78/58/52/12/152010 3/8 1/2 1/2 1/2 3/8 1/2 1/2 1/2 7/8 7/8 7/8 7/8 7/8 7/8 7/8 7/851012 8/3 18/3 18/3 18/3 18/58/52/12/152013 3/8 1/2 1/2 1/2 3/8 1/2 1/2 1/2 7/8 7/8 1 1/8 1 1/8 7/8 7/8 1 1/8 1 1/852015 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 7/8 7/8 1 1/8 1 1/8 7/8 7/8 1 1/8 1 1/852019 1/2 1/2 5/8 5/8 1/2 1/2 5/8 5/8 7/8 1 1/8 1 1/8 1 1/8 7/8 1 1/8 1 1/8 1 1/852022 1/2 1/2 5/8 5/8 1/2 1/2 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/852024 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/852028 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/852032 5/8 5/8 7/8 7/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 3/852036 5/8 5/8 7/8 7/8 5/8 5/8 7/8 7/8 1 3/8 1 3/8 1 3/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/852040 5/8 7/8 7/8 7/8 5/8 5/8 7/8 7/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 3/8 1 5/852044 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/8

25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft 25ft 50ft 75ft 100ft61006 8/1 18/1 18/78/72/12/12/18/361008 8/1 18/1 18/1 18/72/12/12/18/361009 8/1 18/1 18/1 18/78/52/12/12/161011 8/3 18/1 18/1 18/1 18/58/58/52/162011 3/8 1/2 1/2 1/2 3/8 1/2 1/2 1/2 7/8 7/8 1 1/8 1 1/8 7/8 7/8 1 1/8 1 1/861013 8/3 18/3 18/3 18/3 18/58/58/52/162014 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 7/8 1 1/8 1 1/8 1 1/8 7/8 1 1/8 1 1/8 1 1/862016 1/2 1/2 1/2 5/8 1/2 1/2 1/2 5/8 7/8 1 1/8 1 1/8 1 1/8 7/8 1 1/8 1 1/8 1 1/862022 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 1/8 1 1/8 1 1/8 1 3/8 1 1/8 1 1/8 1 1/8 1 3/862025 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/862028 1/2 5/8 5/8 5/8 1/2 5/8 5/8 5/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/862032 5/8 5/8 5/8 7/8 5/8 5/8 5/8 7/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/8 1 3/862038 5/8 7/8 7/8 7/8 5/8 5/8 5/8 7/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 3/8 1 3/862042 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1 3/8 1 3/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/862048 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1 3/8 1 5/8 1 5/8 1 5/8 1 3/8 1 3/8 1 5/8 1 5/862052 5/8 7/8 7/8 7/8 5/8 7/8 7/8 7/8 1 3/8 1 5/8 1 5/8 1 5/8 1 3/8 1 5/8 1 5/8 1 5/8

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Liquid Line, InchesMode sehcnI ,eniL noitcuS1 tiucriC l

Circuit 2

Table 16

Table 15

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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-410A should be done at site). Unit shall be capable to operate from 50°F (10°C) to 120°F (48.9°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 700 psig (4826 kPa) in coil, under water, cleaned and dehydrated at the factory.

Compressor shall be hermetic scroll, refrigerant gas cooled furnished with internal overload protection device, crankcase heater, and shall be mounted on rubber isolators.

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 1or 2, 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.

Unit casing shall be provided with access panels for easy service and maintenance of all units parts.

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

• All compressors shall be with DOL starting.• Individual compressor and condenser fan motor contactors.• Motor protector circuit breaker for condenser fan motors.• Voltage monitoring module for protection against under voltage, over voltage, phase loss, phase reversal and phase unbalance of the incoming voltage. • Control circuit breaker.• Control circuit on/off switch.• Microprocessor control boards.• Control Relays.• Power and control terminal blocks.

GUIDE SPECIFICATIONS

COMPRESSOR(S)

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MICROPROCESSOR CONTROLLERCondensing units shall be equipped with a full function microprocessor based controller as a standard feature. The controller shall be factory programmed for the control of AHU fan motor, compressors and condenser fans. The controller shall come with a built in keypad and display for simple but meaningful man machine interface. This controller shall provide complete operational control for the unit and shall have 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 controller shall come with a loose supplied sleek and elegant design room unit for installing in the conditioned space. Communication between unit controller and room unit shall be through two wire interface. The communication cable shall be 2 core, twisted pair, unscreened with stranded conductors. Maximum distance between room unit and controller shall be 700 meters. The room unit shall have a built in sensor for measuring the room temperature. It shall transmit room temperature, set point, unit operating mode, operating schedule etc. to the unit controller. Control of the compressors shall be based on room temperature and the set point, as standard. Control based on duct temperature shall be available if required.

The Main Features of the controller shall be as follows:

• Built in LCD display with back light.• Built in keypad.• Battery backed up built in real time clock.• Multiple authorization level to provide tight security for the control system.• Capacity control based on room temperature or return air temperature.• Alarm history.• A sleek & elegant design room unit.

GUIDE SPECIFICATIONSDISPLAY INFORMATIONCondensing units shall offer an LCD display which will allow the operator to access different parameters of the unit. Operator shall be able to view and change the unit parameters. The display information shall include:

• Status• Outputs• Inputs• Alarms• Set points• Password

The intelligent microprocessor based controller shall monitor all the safeties related to the unit and makes the necessary protections, by shutting down the entire unit or the effected circuit. The protections shall include:

• Low suction pressure.• High discharge pressure.• High compressor motor temperature.• Compressor short cycling.

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

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NOTES

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NOTES

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NOTES

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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)

Algeria

Aissat 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 Emirates

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

115 / 2015Supersedes # 115 / 2014

SKM Air Cooled Condensing Units AUMR Series - R-410A R-410A … · 2017-12-07 · 3 SKM Air Cooled...

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