Carrier 48/50HJ004-014 specifications Type Outlet FLA, FLA LRA Hacr BKR

Page 21

Table 1E — Electrical Data (COBRA™ Energy Recovery 48HJ008-014 Units with 62AQ200)

 

NOMINAL

IFM

CONV

62AQ

POWER SUPPLY

DISCONNECT SIZE*

UNIT

 

FUSE OR

 

 

V-PH-HZ

TYPE

OUTLET

FLA

MCA

FLA

LRA

 

HACR BKR

 

 

 

 

 

 

 

 

 

 

STD

NO

21.9

60.1

70

66

366

 

208/230-3-60

STD

YES

21.9

66.1

70

71

371

 

HIGH STATIC

NO

21.9

63.2

70

69

391

 

 

48HJ008

 

HIGH STATIC

YES

21.9

69.2

80

75

395

 

STD

NO

10.2

29.4

35

32

184

 

 

 

460-3-60

STD

YES

10.2

32.1

35

34

186

 

HIGH STATIC

NO

10.2

30.8

35

34

197

 

 

 

 

HIGH STATIC

YES

10.2

33.5

35

36

199

 

 

STD

NO

21.9

62.1

70

68

400

 

208/230-3-60

STD

YES

21.9

68.1

70

73

405

 

HIGH STATIC

NO

21.9

65.2

70

71

425

 

 

48HJ009

 

HIGH STATIC

YES

21.9

65.2

70

71

425

 

STD

NO

10.2

31.7

35

34

206

 

 

 

460-3-60

STD

YES

10.2

34.4

40

37

208

 

HIGH STATIC

NO

10.2

33.1

35

36

219

 

 

 

 

HIGH STATIC

YES

10.2

35.8

40

38

221

 

 

STD

NO

21.9

74.9

80

81

465

 

208/230-3-60

STD

YES

21.9

80.9

90

87

469

 

HIGH STATIC

NO

21.9

79.3

90

86

488

 

 

48HJ012

 

HIGH STATIC

YES

21.9

85.3

90

92

493

 

STD

NO

10.2

35.1

40

38

234

 

 

 

460-3-60

STD

YES

10.2

37.8

40

40

236

 

HIGH STATIC

NO

10.2

37.7

40

41

245

 

 

 

 

HIGH STATIC

YES

10.2

40.4

45

43

247

 

208/230-3-60

STD

NO

21.9

82.5

90

89

550

 

STD

YES

21.9

88.5

100

95

555

48HJ014

 

460-3-60

STD

NO

10.2

39.3

45

43

270

 

 

STD

YES

10.2

42.0

45

45

272

 

 

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

UL — Underwriters’ Laboratories

*Used to determine minimum disconnect per NEC.

†Single point box CRSINGLE017A00 is part of base unit.

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.

2.Unbalanced 3-Phase Supply Voltage

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

 

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.

7

% Voltage Imbalance = 100 x 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.

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Contents Contents Safety ConsiderationsGeneral Installation Duct Opening SizesSide View END View Side View Connector ALT GAS Power Control PKG. Accy Drain Hole Roof Curb Unit Size Accessory CRRFCURB001A00CRRFCURB002A00 CRBTMPWR002A00 Roof Curb Unit Size AccessoryCRBTMPWR003A00 CRBTMPWR004A00Part Number Unit Size Equipment SupportRear Right Left Side Front Right Side Page Page Page Make Electrical Connections MAX Weight48HJ008 w/62AQ200 Nominal IFM Conv Power Supply Disconnect Size UnitType Outlet FLA MCA Fuse or LRA Hacr BKR HacrSingle Disconnect Size HeaterPoint BOX Type30.8 025 Cont Power Supply Disconnect Size Unit Fuse or Nominal IFM ConvType Outlet FLA MCA LRA Hacr BKR 40.7 47.7 119 FLA LRA Hacr BKR Type Outlet FLA60.1 Crheater Fuse or Point BOX 68.0 420 68.0 82.8 519/519 017 21.7 25.0 Power Wiring Connections Low Voltage Connections Units with PremierLink Controls Set the Outdoor Cooling and Heat- ing Thermostats Height Width Depth Light Commercial Thermidistat AccessoryInstall Light Commercial Thermidistat Light Commercial Thermidistat Keypad To Test FAN Operational Information Service PRE-START-UPSTART-UP Unit Operation Flow Diagram Heating CoolingTroubleshooting Typical Wiring Schematic Standard Controls Typical Wiring Schematic with PremierLink Controls Problem Cause Remedy Heating and Cooling TroubleshootingCopyright 2002 Carrier Corporation Rooftop Unit RTU and Energy Recovery AQ START-UP Checklist Preliminary Information RTUIII. START-UP III. START-UP IV. Light Commercial Thermidistat Accessory