Carrier Technical Specifications and Features for the 38AKS012 Model

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Table 1A — Physical Data — 50/60 Hz (English)

 

UNIT 38

AK007

 

AK008

 

AK012

 

 

 

AKS008

 

AKS009

 

 

 

AKS012

OPERATING WEIGHT (lb)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Aluminum Coils (Standard)

340

 

392

 

426

 

 

 

510

 

564

 

 

 

564

Copper Coils (Optional)

386

 

460

 

503

 

 

 

578

 

632

 

 

 

632

RIGGING WEIGHT (lb)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Aluminum Coils (Standard)

390

 

442

 

476

 

 

 

560

 

614

 

 

 

614

Copper Coils (Optional)

436

 

510

 

553

 

 

 

628

 

682

 

 

 

682

REFRIGERANT*

 

 

 

 

R-22

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

Bristol, Reciprocating

 

Copeland, Scroll

 

Copeland, Scroll

 

 

Reciprocating, Semi-Hermetic

Quantity...Type

1...H26A72Q

 

1...ZR94KC

 

1...ZR125KC

 

 

1...06DA818

 

1...06DA824

 

 

1...06DH824

 

 

 

 

 

 

 

(See Note)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Quantity Cylinders

2

 

 

 

 

 

4

 

 

 

6

Speed (rpm) — 60 Hz

3500

 

3500

 

3500

 

 

 

1750

 

 

1750

 

— 50 Hz

 

 

 

 

 

 

 

 

1460

 

 

1460

Oil Charge (oz)

65

 

85

 

110

 

 

 

88

 

 

128

CONDENSER FAN — 60 Hz

 

 

 

Propeller; Direct Drive

 

 

 

 

 

 

Quantity...Rpm

1...850

 

 

 

 

 

1...1100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diameter (in.)

26

 

 

 

 

 

26

 

 

 

 

 

 

Motor Hp (NEMA)

1/

 

 

 

 

 

3/

 

 

 

 

 

 

Nominal Airflow (cfm)

3

 

 

 

 

 

4

 

 

 

 

 

 

3800

 

6500

 

7000

 

 

 

6500

 

6500

 

 

 

6500

CONDENSER FAN — 50 Hz

 

 

 

Propeller; Direct Drive

 

 

 

 

 

 

Quantity...Rpm

 

 

 

1...960

 

 

 

 

 

 

 

 

 

Diameter (in.)

 

 

 

26

 

 

 

 

 

 

 

 

 

 

Motor Hp (NEMA)

 

 

 

1/

 

 

 

 

 

 

 

 

 

 

Nominal Airflow (cfm)

 

 

 

3

 

 

 

 

 

 

 

 

 

 

3150

 

5400

 

5800

 

 

 

5400

 

5400

 

 

 

5400

CONDENSER COIL

 

 

Enhanced Copper Tubes, Aluminum Lanced Fins

 

 

 

 

 

 

Face Area (sq ft)

12.24

 

15.75

 

20.5

 

 

 

18.0

 

18.0

 

 

 

18.0

 

 

 

 

 

 

 

Storage Capacity (lb)†

11.26

 

14.88

 

18.87

 

 

 

16.56

 

16.56

 

 

 

16.56

CONNECTIONS (sweat)

11/8

 

11/8

 

11/8

 

 

 

11/8

 

11/8

 

 

 

11/8

Suction (in.)

 

 

 

 

 

 

 

 

 

Liquid (in.)

1/

 

1/

 

5/

 

 

 

1/

 

5/

 

 

 

5/

 

 

2

 

2

 

8

 

 

 

2

 

8

 

 

 

8

CONTROLS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressurestat Settings (psig)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High

Cutout

 

 

 

426 ±

7

 

 

 

 

 

 

 

 

 

 

Cut-in

 

 

 

320 ± 20

 

 

 

 

 

 

 

 

 

Low

Cutout

 

 

 

7 ±

3

 

 

 

 

 

 

 

 

 

 

Cut-in

 

 

 

22 ±

5

 

 

 

 

 

 

 

 

 

LEGEND

NEMA — National Electrical Manufacturing Association

*Unit is factory supplied with holding charge only.

†Storage capacity of condenser coil with coil 80% full of liquid R-22 at 124 F.

NOTE: Unit 38AKS012 has one step of unloading. Full load is 100% capacity, and one step of unloading is 67% capacity. Unit 38AKS012 has the following unloader settings: load is 70 ± 1 psig and unload is 60 ± 2 psig.

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Contents Installation ContentsSafety Considerations Refrigerant Compressor Physical Data 50/60 Hz EnglishUnit Condenser CoilPhysical Data 50/60 Hz SI Refrigerant Piping Sizes 60 Hz Weight DistributionRig and Mount the Unit Refrigerant Piping Sizes 50 HzDimensions ft-in Liquid Line Data 50 Hz Make Electrical ConnectionsLiquid Line Data 60 Hz MAX Liquid Line Unit AllowableElectrical Data Field Control Wiring Raceway 38AKS Unit Shown Length Insulation Size Rating C AWGSTART-UP Preliminary ChecksLow-Pressure/Loss-of-Charge Switch LPS Cooling Charging Chart 38AK008,012 38AKS008,009,012 60 HzOil Charge Tables 1A and 1B ServiceCondenser-Fan Adjustment Fig LubricationCondenser-Fan Adjustment Troubleshooting Guide Symptom Cause RemedyGND CAPCLO OFCII. Pre-Start-Up START-UP ChecklistPreliminary Information III. Start-Up Check Voltage Imbalance
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