48Hj High-Static Motor Units Without Electrical Convenience Outlet; 48Hj High-Static Motor Units With Electrical Convenience Outlet - Carrier 48HJD005-007 Installation, Start-Up And Service Instructions Manual

Table 2C — 48HJ High-Static Motor Units Without Electrical Convenience Outlet
NOMINAL
UNIT
VOLTAGE
48HJ
(V-Ph-Hz)
208/230-3-60 187
004 460-3-60
575-3-60
208/230-3-60 187
005 460-3-60
575-3-60
208/230-3-60 187
006 460-3-60
575-3-60
208/230-3-60 187
007 460-3-60
575-3-60
Table 2D — 48HJ High-Static Motor Units With Electrical Convenience Outlet
NOMINAL
UNIT
VOLTAGE
48HJ
(V-Ph-Hz)
208/230-3-60
004 460-3-60
575-3-60
208/230-3-60
005 460-3-60
575-3-60
208/230-3-60
006 460-3-60
575-3-60
208/230-3-60
007 460-3-60
575-3-60
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.
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.
max voltage deviation from average voltage
= 100 x
average voltage
VOLTAGE COMPRESSOR
RANGE (each)
Min Max RLA LRA
254 10.3 77.0
414 508 5.1 39.0
518 632 4.2 31.0
254 13.5 99.0
414 508 7.4 49.5
518 632 5.8 40.0
254 17.3 123.0
414 508 9.0 62.0
518 632 7.1 50.0
254 20.5 156.0
414 508 9.6 70.0
518 632 7.7 56.0
VOLTAGE COMPRESSOR
RANGE (each)
Min Max RLA LRA
187 254 10.3 77.0
414 508 5.1 39.0
518 632 4.2 31.0
187 254 13.5 99.0
414 508 7.4 49.5
518 632 5.8 40.0
187 254 17.3 123.0
414 508 9.0 62.0
518 632 7.1 50.0
187 254 20.5 156.0
414 508 9.6 70.0
518 632 7.7 56.0
COMBUSTION
OFM IFM
FAN MOTOR
FLA FLA RLA
0.7 5.8 0.6
0.4 2.6 0.3
0.4 2.6 0.3
0.7 5.8 0.6
0.4 2.6 0.3
0.4 2.6 0.3
1.5 7.5 0.6
0.8 3.4 0.3
0.8 3.4 0.3
1.4 7.5 0.6
0.6 3.4 0.3
0.6 3.4 0.3
COMBUSTION
OFM IFM
FAN MOTOR
FLA FLA RLA
0.7 5.8 0.6
0.4 2.6 0.3
0.4 2.6 0.3
0.7 5.8 0.6
0.4 2.6 0.3
0.4 2.6 0.3
1.5 7.5 0.6
0.8 3.4 0.3
0.8 3.4 0.3
1.4 7.5 0.6
0.6 3.4 0.3
0.6 3.4 0.3
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
Average Voltage =
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.
% Voltage Imbalance= 100 x
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.
11
MINIMUM UNIT
POWER
DISCONNECT
SUPPLY
MCA MOCP† FLA
19.4/19.4 25/25 19/19
9.4 15 9
7.7 15 8
23.4/23.4 30/30 23/23
12.3 15 12
9.7 15 9
30.6/30.6 35/35 30/30
15.5 20 15
12.2 15 12
30.6/30.6 35/35 30/30
15.5 20 15
12.2 15 12
MINIMUM UNIT
POWER
DISCONNECT
SUPPLY
MCA MOCP† FLA
25.4/25.4 30/30 25
12.1 15 12
9.8 15 10
29.4/29.4 35/35 29
15.0 20 14
11.8 15 11
36.6/36.6 40/40 36
18.2 20 18
14.4 20 14
40.5/40.5 45/45 39
18.7 25 18
15.0 20 15
452 + 464 + 455
3
1371
=
3
= 457
7
457
= 1.53%
SIZE*
LRA
120/120
60
48
142/142
71
57
187/187
94
76
187/187
94
76
SIZE*
LRA
124/124
63
50
146/146
73
59
192/192
96
77
224/224
104
89