Carrier 48HJD005-007 specifications age is greater than 2%. Use the following formula to determine

Page 10
Never operate a motor where a phase imbalance in supply volt-

Table 2A — 48HJ Electrical Data Standard Motor (Units Without Electrical Convenience Outlet)

 

 

NOMINAL

VOLTAGE

COMPRESSOR

OFM

IFM

COMBUSTION

POWER

MINIMUM UNIT

UNIT

SUPPLY

DISCONNECT

VOLTAGE

RANGE

FAN MOTOR

48HJ

 

 

 

 

WITH OUTLET

SIZE*

(V-Ph-Hz)

 

 

 

 

 

 

 

 

 

Min

Max

RLA

LRA

FLA

FLA

FLA

MCA

MOCP†

FLA

LRA

 

 

 

 

 

208/230-1-60

187

254

16.0

88.0

0.7

4.9

.57

25.6/25.6

35/35

25/25

101/101

004

 

208/230-3-60

187

254

10.3

77.0

0.7

4.9

.57

18.5/18.5

25/25

18/18

90/ 90

(3 Tons)

 

460-3-60

414

508

5.1

39.0

0.4

2.2

.30

9.0

15

9

46

 

 

575-3-60

518

632

4.2

31.0

0.4

2.2

.30

7.3

15

7

36

 

 

208/230-1-60

187

254

23.7

129.0

0.7

4.9

.57

35.2/35.2

45/45

34/34

142/142

005

 

208/230-3-60

187

254

13.5

99.0

0.7

4.9

.57

22.5/22.5

30/30

22/22

112/112

(4 Tons)

 

460-3-60

414

508

7.4

49.5

0.4

2.2

.30

11.9

15

12

56

 

 

575-3-60

518

632

5.8

40.0

0.4

2.2

.30

9.3

15

9

45

 

 

208/230-1-60

187

254

28.8

169.0

1.5

8.8

.57

46.3/46.3

60/60

45/45

216/216

006

 

208/230-3-60

187

254

17.3

123.0

1.5

5.8

.57

28.9/28.9

35/35

28/28

168/168

(5 Tons)

 

460-3-60

414

508

9.0

62.0

0.8

2.6

.30

14.7

20

14

84

 

 

575-3-60

518

632

7.1

50.0

0.8

2.6

.30

11.6

15

11

67

007

 

208/230-3-60

187

254

20.5

156.0

1.4

5.8

.57

32.8/32.8

40/40

32/32

200/200

 

460-3-60

414

508

9.6

70.0

0.6

2.6

.30

15.2

20

15

92

(6 Tons)

 

 

575-3-60

518

632

7.7

56.0

0.6

2.6

.30

12.2

15

13

78

 

 

Table 2B — 48HJ Electrical Data Standard Motor (Units With Electrical Convenience Outlet)

 

 

NOMINAL

VOLTAGE

 

 

 

 

COMBUSTION

POWER

MINIMUM UNIT

UNIT

COMPRESSOR

OFM

IFM

SUPPLY

DISCONNECT

VOLTAGE

RANGE

FAN MOTOR

48HJ

 

 

 

 

WITH OUTLET

SIZE*

(V-Ph-Hz)

 

 

 

 

 

 

 

 

 

Min

Max

RLA

LRA

FLA

FLA

FLA

MCA

MOCP†

FLA

LRA

 

 

 

 

 

208/230-1-60

187

254

16.0

88.0

0.7

4.9

.57

31.6/31.6

40/40

30/30

106/106

004

 

208/230-3-60

187

254

10.3

77.0

0.7

4.9

.57

24.5/24.5

30/30

24/24

95/95

(3 Tons)

 

460-3-60

414

508

5.1

39.0

0.4

2.2

.30

11.7

15

11

48

 

 

575-3-60

518

632

4.2

31.0

0.4

2.2

.30

9.5

15

9

38

 

 

208/230-1-60

187

254

23.7

129.0

0.7

4.9

.57

41.2/41.2

50/50

39/39

147/147

005

 

208/230-3-60

187

254

13.5

99.0

0.7

4.9

.57

28.5/28.5

35/35

27/27

117/117

(4 Tons)

 

460-3-60

414

508

7.4

49.5

0.4

2.2

.30

14.6

20

14

58

 

 

575-3-60

518

632

5.8

40.0

0.4

2.2

.30

11.5

15

11

47

 

 

208/230-1-60

187

254

28.8

169.0

1.5

8.8

.57

52.3/52.3

60/60

50/50

221/221

006

 

208/230-3-60

187

254

17.3

123.0

1.5

5.8

.57

34.9/34.9

40/40

34/34

173/173

(5 Tons)

 

460-3-60

414

508

9.0

62.0

0.8

2.6

.30

17.4

20

17

86

 

 

575-3-60

518

632

7.1

50.0

0.8

2.6

.30

13.8

20

13

69

007

 

208/230-3-60

187

254

20.5

156.0

1.4

5.8

.57

38.8/38.8

45/45

37/37

205/205

 

460-3-60

414

508

9.6

70.0

0.6

2.6

.30

17.9

20

17

94

(6 Tons)

 

 

575-3-60

518

632

7.7

56.0

0.6

2.6

.30

14.3

20

15

79

 

 

LEGEND

FLA — Full Load Amps

HACR — Heating, Air Conditioning and Refrigeration

IFM — Indoor (Evaporator) Fan Motor

LRA — Locked Rotor Amps

MCA — Minimum Circuit Amps

MOCP— Maximum Overcurrent Protection

NEC — National Electrical Code

OFM — Outdoor (Condenser) Fan Motor

RLA — Rated Load Amps

UL — Underwriters’ Laboratories

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker.

NOTES:

1. In compliance with NEC requirements for multimotor and combi-

nation load equipment (refer to NEC Articles 430 and 440), the

overcurrent protective device for the unit shall be fuse or HACR

breaker. UL, Canada units may be fuse or circuit breaker.

Example: Supply voltage is 460-3-60.

AB = 452 v BC = 464 v AC = 455 v

Average Voltage = 452 + 464 + 455 3

1371

=

3

= 457

Determine maximum deviation from average voltage. (AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v (AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

2. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply volt-

% Voltage Imbalance= 100 x

7

age is greater than 2%. Use the following formula to determine

the percent of voltage imbalance.

= 100 x

max voltage deviation from average voltage

average voltage

 

457

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.

10

Page 9 Page 11
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Page 9 Page 11
Contents INSTALLATION CONTENTSSAFETY CONSIDERATIONS Step 1 - Provide Unit SupportFig. 1 - Roof Curb Details 1′-4″Fig. 2 - Unit Leveling Tolerances Fig. 3 - Condensate Drain PanStep 7 - Make Electrical Connections Table 1 - Physical Data Table 1 - Physical Data cont 1/2″ Fig. 5 - Base Unit Dimensions - 48HJ004-0073/4″ Thru-the-Curb Service Connections Step 8 - Adjust Factory-Installed OptionsFig. 7 - Gas Piping Guide With Accessory Fig. 6 - Flue Hood DetailsFig. 10 - Field Control Wiring Raceway Fig. 8 - Power Wiring ConnectionsFig. 9 - Low-Voltage Connections With or Without Economizer age is greater than 2%. Use the following formula to determine Never operate a motor where a phase imbalance in supply voltthe percent of voltage imbalance Table 2C - 48HJ High-Static Motor Units Without Electrical Convenience Outlet Fig. 11 - Accessory Field-Installed Humidistat 208/230-V Unit ShownFig. 16 - Horizontal Durablade Economizer Installation Fig. 13 - Typical Access Panel LocationsFig. 15 - Durablade Economizer Installed in Unit Fig. 14 - Outdoor-Air Hood DetailsFig. 19B - Durablade Economizer Minimum Position Damper Setting Wiring HarnessFig. 19A - Durablade Economizer Damper Minimum Position Setting Fig. 20 - Outdoor-Air Thermostat Enthalpy Control InstallationFig. 25 - Exhaust Air Hood Assembly Relief Damper CharacteristicsFig. 24 - Typical Access Panel Locations Fig. 22 - Durablade Economizer BarometricFig. 27 - Completed Hood Assembly Fig. 28 - Rear EconoMi$er Flange InstallationFig. 26 - Outdoor-Air Hood Assembly Fig. 29 - EconoMi$er InstalledFig. 32 - Wiring Diagram for Power Exhaust System Fig. 31 - EconoMi$er Sensor WiringFig. 33 - Typical Access Panel Locations POWER EXHAUST SYSTEM HIGH VOLTAGEFig. 35 - EconoMi$er Control Adjustment Fig. 34 - Supply-Air Sensor PlacementTable 4 - Default Potentiometer Settings Potentiometers Factory SettingsFig. 38 - Evaporator-Fan Pulley Adjustment Step 9 - Adjust Evaporator-Fan Speed - AdFig. 37 - Belt-Drive Motor Mounting Table 6 - Evaporator-Fan Motor Data - Standard Motor Table 5A - 48HJ Fan Rpm at Motor Pulley Setting With Standard MotorTable 7 - Evaporator-Fan Motor Data - High-Static Motors Table 9 - Outdoor Sound Power Total Unit Table 8 - Motor Nominal HorsepowerBels Table 12 - 48HJ005 Fan Performance - Vertical Discharge Units With Standard Motor Single-Phase Units 3-Phase UnitsTable 16 - 48HJ007 Fan Performance - Vertical Discharge Units With Standard Motor Table 18 - 48HJ004 Fan Performance - Horizontal Discharge Units With Standard Motor Table 20 - 48HJ005 Fan Performance - Horizontal Discharge Units With Standard Motor 3-Phase Units Table 27 - FIOP MoistureMiser Dehumidification FIOP - Factory-Installed OptionTable 26 - Economizer Static Pressure Drop in. wg Package Static Pressure Drop in. wgPRE-START-UP START-UPOperating Sequence HeatingTable 28 - Altitude Compensation When the supply-air temperature falls between 57 F and Fig. 39 - MoistureMiser Option Operation Fig. 40 - Cleaning Condenser Coil Fig. 41 - Propping Up Top Panel SERVICELubrication Fig. 42 - Separating Coil SectionsFig. 44 - Cooling Charging Chart Standard 48HJ004 Fig. 43 - Condenser-Fan AdjustmentFig. 45 - Cooling Charging Chart Standard 48HJ005 Fig. 46 - Cooling Charging Chart Standard 48HJ006 Fig. 47 - Cooling Charging Chart Standard 48HJ007Fig. 48 - Cooling Charging Chart, 48HJ004 with Optional MoistureMiser Dehumidification Package Table 29 - LED Error Code Description Fig. 52 - Burner Section Details Fig. 53 - Burner Tray DetailsMEDIUM AND HIGH HEAT 48HJE005-007, 48HJF004 - 115,000 BTUH INPUT Fig. 54 - Spark Gap AdjustmentLOW HEAT 48HJE004, 48HJD005-007 - 72,000 BTUH INPUT 48HJF005-007 - 150,000 BTUH INPUTTROUBLESHOOTING Table 30 - LED Error Code Service AnalysisTable 31 - Heating Service Analysis Table 32 - Durablade Economizer Service AnalysisTable 33 - EconoMi$er Flash Code Identification Table 34 - EconoMi$er TroubleshootingCritical Table 35 - MoistureMiser Dehumidification Subcooler Service Analysis Table 36 - Cooling Service Analysis Compressor operates continuouslyFig. 55 - Typical Wiring Schematic and Component Arrangement 208/230 3-Phase Unit ShownLEGEND AND NOTES FOR FIG NOTES FOR FIGReplaces 48HJ-17SI Page II. PRE-START-UP insert checkmark in box as each item is completed START-UP CHECKLIST Remove and Store in Job FileI. PRELIMINARY INFORMATION III. START-UP
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