Carrier 38HDR018-060, 38HDF018-036 specifications 38HDF Electrical Data

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Table 2 — 38HDF Electrical Data

38HDF

V-PH-Hz

VOLTAGE RANGE*

COMPRESSOR

OUTDOOR FAN MOTOR

MIN CKT

FUSE/HACR

UNIT SIZE

Min

Max

RLA

LRA

FLA

NEC Hp

kW Out

AMPS

BKR AMPS

 

018

208/230-1-60

187

253

10.0

48.0

0.80

0.125

0.09

13.3

20

024

208/230-1-60

187

253

14.3

58.3

0.80

0.125

0.09

18.7

30

030

208/230-1-60

187

253

15.7

73.0

0.80

0.125

0.09

20.4

35

 

208/230-1-60

187

253

20.0

112.0

1.45

0.25

0.19

26.5

45

036

208/230-3-60

187

253

14.7

88.0

1.45

0.25

0.19

19.8

30

 

460-3-60

414

506

6.6

44.0

0.80

0.25

0.19

9.1

15

 

LEGEND

FLA

Full Load Amps

HACR

Heating, Air Conditioning, Refrigeration

LRA

Locked Rotor Amps

NEC

National Electrical Code

RLA

Rated Load Amps (Compressor)

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 percentage of voltage imbalance:

*Permissible limits of the voltage range at which unit will operate satisfactorily.

% Voltage Imbalance = 100 x

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NOTES:

1.Control circuit is 24 v on all units and requires an external power source.

2.All motors and compressors contain internal overload protection.

3.In compliance with NEC (U.S.A. Standard) requirements for mul- timotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker.

4.Motor RLA values are established in accordance with UL (Under- writers’ Laboratories) Standard 465 (U.S.A. Standard).

5.38HDF,HDR018-030 units are only available in single-phase voltage.

6.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 percentage 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

452 + 464 + 455

Average Voltage =

3

1371

=

3

= 457

457

=1.53%

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

IMPORTANT: Contact your local electric utility company immedi- ately if the supply voltage phase imbalance is more than 2%.

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Contents Installation, Start-Up Service Instructions 38HDF,HDR Unit Dimensions Lifting Unit with Sling Rig and Mount Unit38HDF018-036 Physical Data Unit 38HDR 38HDR018-060 Physical DataTypical Control Circuit Connections Make Electrical Connections38HDF Electrical Data 38HDR 38HDR Electrical DataHPS CAPCcht GNDComp CLOEquip Condenser-Fan Mounting Positions Preliminary ChecksRefrigerant Charging Pressure Temperature Psig Pressure vs. Temperature Chart Puron Refrigerant R-410ALubrication Required Liquid Line Liquid Pressure Temperature FSubcooling Charging Table Troubleshooting the Cooling Cycle Copyright 2006 Carrier Corporation

38HDR018-060, 38HDF018-036 specifications

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