542J

PHYSICAL DATA — 542J150,180

UNIT SIZE 542J

 

150

 

180

 

203/230 V, 460 V

 

575 V

 

 

 

 

NOMINAL CAPACITY (tons)

 

12.5

 

15

OPERATING WT (lb)

 

 

 

 

 

Unit

 

1615

 

1925

EconoMi$erIV

 

90

 

90

EconoMi$er2

 

85

 

85

Roof Curb*

 

200

 

200

COMPRESSOR

 

 

Semi-Hermetic

 

Model Number (Quantity)

 

06D-328 (1)

 

06D-818 (2)

Cylinders

 

6

 

4

Capacity Staging (%)

 

0,66,100

 

0,50,100

Oil Change (oz)

 

115

 

88 (each)

REFRIGERANT TYPE

 

 

 

R-22

 

Charge (lb)

 

26.0

 

16.5

System 1

 

 

System 2

 

 

16.5

OUTDOOR COIL

 

3/8 in. Enhanced Copper Tubes, Aluminum Lanced or Copper

Plate Fins

Rows

 

3

 

3

Fins/in.

 

15

 

15

Total Face Area (sq ft)

 

21.7

 

21.7

OUTDOOR FAN

 

Propeller Type, Direct Drive

 

Nominal Cfm

 

9,000

 

9,000

Number...Diameter (in.)

 

3...22

 

3...22

Motor Hp (1075 Rpm)

 

1/2

 

1/2

Watts Input (Total)

 

1090

 

1090

INDOOR COIL

 

3/8-in. Enhanced Copper Tubes, Aluminum Double Wavy or Copper

Plate Fins, Face Split

Rows

 

3

 

3

Fins/in.

 

15

 

15

Total Face Area (sq ft)

 

17.5

 

17.5

INDOOR FAN

 

Centrifugal, Adjustable Pitch Belt Drive

 

Quantity...Size (in.)

 

2...10 x 10

 

2...10 x 10

2...12 x 12

Nominal Cfm

 

5000

 

5000

6000

Maximum Continuous Bhp

STD

4.25

 

3.45

5.90

Fan Rpm Range

891-1179

 

1159-1429

817-1038

Motor Nominal Rpm

ALT

1227-1559

 

1082-1303

 

1725

 

1550

1745

Maximum Allowable Rpm

STD

1550

 

1550

Motor Pulley Pitch Diameter (in.)

3.1-4.1

 

4.3-5.3

3.7-4.7

Fan Pulley Pitch Diameter (in.)

ALT

3.7-4.7

 

4.9-5.9

STD

6.0

 

6.4

7.9

Belt, Quantity...Type...Length (in.)

ALT

5.2

 

7.9

STD

1...BX...42

 

1...BX...45

1...BX...46

Pulley Center Line Distance (in.)

ALT

1...BX...42

 

1...BX...50

 

13.5-15.5

 

13.5-15.5

13.3-14.8

Factory Setting

STD

3.5

 

3.5

3.5

Factory Speed Setting

1035

 

1296

934

Motor Hp (Service Factor)

ALT

1389

 

1199

 

3.7 (1.15)

 

3.0 (1.15)

5 (1.15)

Motor Frame Size

 

56H

 

56H

184T

Motor Efficiency

 

0.86

 

0.82

0.875

HIGH-PRESSURE SWITCH

 

 

 

426

 

Cutout (psig)

 

 

 

 

Reset (psig)

 

 

 

320

 

LOW-PRESSURE/LOSS-OF-CHARGE SWITCH

 

 

 

7

 

Cutout (psig)

 

 

 

 

Reset (psig)

 

 

 

22

 

FREEZE PROTECTION THERMOSTAT (F)

 

 

 

30 ± 5

 

Opens

 

 

 

 

Closes

 

 

 

45 ± 5

 

OUTDOOR AIR INLET SCREENS

 

 

Cleanable

 

Economizer, Quantity...Size (in.)

 

 

2...20 x 25 x 1

 

 

 

1...20 x 20 x 1

 

 

 

 

 

RETURN-AIR FILTERS (Type)

 

10% Efficient — 2-in. Throwaway Fiberglass

 

Quantity...Size (in.)

 

 

4...20 x 20 x 2

 

 

 

4..16 x 20 x 2

 

 

 

 

 

POWER EXHAUST

 

1/2 Hp 208/230 or 460 V Motor, Direct Drive Propeller Fan (Factory Wired for 460 V)

LEGEND

 

 

 

 

 

Al — Aluminum Cu — Copper

*Weight of 14 in. roof curb.

140

Page 140
Image 140
Bryant 549C manual Physical Data 542J150,180, Unit Size 542J, Alt Std