Disconnect - Carrier COBRA 48/50HJ004-014 Installation And Service

Table 1E — Electrical Data (COBRA™ Energy Recovery 48HJ008-014 Units with 62AQ200)
NOMINAL
UNIT
V-PH-HZ
208/230-3-60
48HJ008
460-3-60
208/230-3-60
48HJ009
460-3-60
208/230-3-60
48HJ012
460-3-60
208/230-3-60
48HJ014
460-3-60
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
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.
max voltage deviation from average voltage
= 100 x
average voltage
IFM CONV
TYPE OUTLET
STD NO
STD YES
HIGH STATIC NO
HIGH STATIC YES
STD NO
STD YES
HIGH STATIC NO
HIGH STATIC YES
STD NO
STD YES
HIGH STATIC NO
HIGH STATIC YES
STD NO
STD YES
HIGH STATIC NO
HIGH STATIC YES
STD NO
STD YES
HIGH STATIC NO
HIGH STATIC YES
STD NO
STD YES
HIGH STATIC NO
HIGH STATIC YES
STD NO
STD YES
STD NO
STD YES
21
POWER SUPPLY
62AQ
FUSE OR
FLA
MCA
HACR BKR
21.9 60.1 70
21.9 66.1 70
21.9 63.2 70
21.9 69.2 80
10.2 29.4 35
10.2 32.1 35
10.2 30.8 35
10.2 33.5 35
21.9 62.1 70
21.9 68.1 70
21.9 65.2 70
21.9 65.2 70
10.2 31.7 35
10.2 34.4 40
10.2 33.1 35
10.2 35.8 40
21.9 74.9 80
21.9 80.9 90
21.9 79.3 90
21.9 85.3 90
10.2 35.1 40
10.2 37.8 40
10.2 37.7 40
10.2 40.4 45
21.9 82.5 90
21.9 88.5 100
10.2 39.3 45
10.2 42.0 45
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
= 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.
DISCONNECT SIZE*
FLA LRA
66 366
71 371
69 391
75 395
32 184
34 186
34 197
36 199
68 400
73 405
71 425
71 425
34 206
37 208
36 219
38 221
81 465
87 469
86 488
92 493
38 234
40 236
41 245
43 247
89 550
95 555
43 270
45 272
452 + 464 + 455
3
1371
=
3
= 457
7
457