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

Table 1C — Electrical Data (COBRA™ Energy Recovery 48HJ004-007 Units with 62AQ100)
NOMINAL
UNIT
V-PH-Hz
208/230-1-60
208/230-3-60
48HJ004
460-3-60
208/230-1-60
208/230-3-60
48HJ005
460-3-60
208/230-1-60
208/230-3-60
48HJ006
460-3-60
208/230-3-60
48HJ007
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
— Underwriters' Laboratories
UL
*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
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
HIGH STATIC NO
HIGH STATIC YES
STD NO
STD YES
HIGH STATIC NO
HIGH STATIC YES
STD NO
STD 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
POWER SUPPLY
62AQ
FUSE OR
FLA
MCA
HACR BKR
15.1 40.7/40.7 45/45
15.1 46.7/46.7 50/50
15.1 33.6/33.6 40/40
15.1 39.6/39.6 45/45
15.1 34.5/34.5 40/40
15.1 40.5/40.5 45/45
15.1 16.5
15.1 19.2
15.1 16.9
15.1 19.6
15.1 50.3/50.3 60/60
15.1 56.3/56.3 70/70
15.1 37.6/37.6 45/45
15.1 43.6/43.6 50/50
15.1 38.5/38.5 45/45
15.1 44.5/44.5 50/50
15.1 18.2
15.1 20.9
15.1 18.6
15.1 21.3
15.1 61.4/61.4 70/70
15.1 67.4/67.4 80/80
15.1 44.0/44.0 50/50
15.1 50.0/50.0 60/60
15.1 45.7/45.7 60/60
15.1 51.7/51.7 60/60
15.1 22.2
15.1 24.9
15.1 23.0
15.1 25.7
15.1 47.9/47.9 60/60
15.1 53.9/53.9 60/60
15.1 49.6/49.6 60/60
15.1 55.6/55.6 60/60
15.1 22.8
15.1 25.5
15.1 23.6
15.1 26.3
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
= 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.
17
DISCONNECT SIZE*
FLA LRA
42/42 161/161
48/48 166/166
36/36 150/150
41/41 155/155
37/37 180/180
42/42 184/184
20 18
20 23
20 18
25 24
51/51 199/199
57/57 204/204
39/39 166/166
45/45 171/171
40/40 196/196
46/46 200/200
20 19
25 25
25 19
25 25 102
62/62 276/276
68/68 281/281
46/46 228/228
51/51 233/233
48/48 247/247
53/53 252/252
25 23 114
30 28 119
30 24 123
30 29 128
49/49 260/260
55/55 265/265
51/51 279/279
57/57 284/284
30 23 127
30 29 131
30 24 136
30 30 141
452 + 464 + 455
3
1371
=
3
= 457
7
457
76
80
90
95
83
88
97