Carrier COBRA 48/50HJ004-014 - Manual (Page 20)

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Table 1D — Electrical Data (COBRA™ Energy Recovery 50HJ004-007 Units with 62AQ100) (cont)
LEGEND
*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 combination 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 cir-
cuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage is greater
than 2%. Use the following formula to determine the percent of voltage
imbalance.
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
= 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.
% Voltage Imbalance = 100 x
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maximum allow-
able 2%.
UNIT
NOMINAL
V-PH-Hz
IFM
TYPE
CONV
OUTLET
62AQ
FLA
HEATER
CRHEATER
---A00
HEAT POWER SUPPLY SINGLE
POINT BOX
CRSINGLE
---A00
DISCONNECT SIZE*
FLA MCA
FUSE OR
HACR BKR
MOCP FLA LRA
50HJ006
(cont)
460-3-60
STD YES 15.1
NONE — 24.9 30 — — 28 119
006 7.2 24.9 30 — — 28 119
008 13.8 30.9 35 — 025 28 119
009 16.8 34.6 40 — 025 36 119
008+008 27.7 48.1 50 — 025 48 119
008+009 30.7 51.9 60 — 025 52 119
HIGH STATIC NO 15.1
NONE — 23.0 30 — — 24 123
006 7.2 23.0 30 — — 24 124
008 13.8 29.6 35 — 025 24 124
009 16.8 33.3 35 — 025 32 124
008+008 27.7 46.8 50 — 025 44 124
008+009 30.7 50.6 60 — 025 48 124
HIGH STATIC YES 15.1
NONE — 25.7 30 — — 29 128
006 7.2 25.7 30 — — 29 129
008 13.8 31.7 35 — 025 29 129
009 16.8 35.4 40 — 025 37 129
008+008 27.7 48.9 50 — 025 49 129
008+009 30.7 52.7 60 — 025 53 129
50HJ007
208/230-3-60
STD NO 15.1
NONE —/— 47.9/ 47.9 60/60 — — 49/ 49 260/260
002 13.6/15.6 47.9/ 47.9 60/60 — — 49/ 49 260/260
004 21.9/25.3 50.9/ 55.1 60/60 — — 49/ 53 260/260
005 33.4/38.5 65.2/ 71.6 — 70/ 80 002 62/ 68 260/260
004+004 43.8/50.5 78.2/ 86.7 — 80/ 90 003 74/ 82 260/260
004+005 55.2/63.8 92.6/103.2 — 100/110 003 88/ 97 260/260
STD YES 15.1
NONE —/— 53.9/ 53.9 60/60 — — 55/ 55 265/265
002 13.6/15.6 53.9/ 53.9 60/60 — — 55/ 55 265/265
004 21.9/25.3 55.7/ 59.3 — 70/ 70 002 55/ 58 265/265
005 33.4/38.5 70.0/ 75.8 — 80/ 80 003 68/ 73 265/265
004+004 43.8/50.5 83.0/ 90.9 — 90/100 003 80/ 87 265/265
004+005 55.2/63.8 97.4/107.4 — 100/110 003 93/102 265/265
HIGH STATIC NO 15.1
NONE —/— 49.6/ 49.6 60/60 — — 51/ 51 279/279
002 13.6/15.6 49.6/ 49.6 60/60 — — 51/ 51 279/279
004 21.9/25.3 52.6/ 56.8 — 60/ 70 002 51/ 55 279/279
005 33.4/38.5 66.9/ 73.3 — 70/ 80 002 64/ 70 279/279
004+004 43.8/50.5 79.9/ 88.4 — 80/ 90 003 76/ 84 279/279
004+005 55.2/63.8 94.3/104.9 — 100/110 003 90/ 99 279/279
HIGH STATIC YES 15.1
NONE —/— 55.6/ 55.6 60/60 — — 57/ 57 284/284
002 13.6/15.6 55.6/ 55.6 60/60 — — 57/ 57 284/284
004 21.9/25.3 57.4/ 61.0 — 70/ 70 002 57/ 60 284/284
005 33.4/38.5 71.7/ 77.5 — 80/ 80 003 70/ 75 284/284
004+004 43.8/50.5 84.7/ 92.6 — 90/100 003 82/ 89 284/284
004+005 55.2/63.8 99.1/109.1 — 100/110 003 95/104 284/284
460-3-60
STD NO 15.1
NONE — 22.8 30 — — 23 127
006 7.2 22.8 30 — — 23 127
008 13.8 28.8 35 — 025 23 127
009 16.8 32.5 35 — 025 31 127
008+008 27.7 46.0 50 — 025 43 127
008+009 30.7 49.8 50 — 025 47 127
STD YES 15.1
NONE — 25.5 30 — — 29 131
006 7.2 25.5 30 — — 29 132
008 13.8 30.9 35 — 025 29 132
009 16.8 34.6 40 — 025 36 132
008+008 27.7 48.1 50 — 025 48 132
008+009 30.7 51.9 60 — 025 52 132
HIGH STATIC NO 15.1
NONE — 23.6 30 — — 24 136
006 7.2 23.6 30 — — 24 137
008 13.8 29.6 35 — 025 24 137
009 16.8 33.3 35 — 025 32 137
008+008 27.7 46.8 50 — 025 44 137
008+009 30.7 50.6 60 — 025 48 137
HIGH STATIC YES 15.1
NONE — 26.3 30 — — 30 141
006 7.2 26.3 30 — — 30 141
008 13.8 31.7 35 — 025 30 141
009 16.8 35.4 40 — 025 37 141
008+008 27.7 48.9 50 — 025 49 141
008+009 30.7 52.7 60 — 025 53 141
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
= 100 x
max voltage deviation from average voltage
average voltage
Average Voltage =
452 + 464 + 455
3
=
1371
3
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact
your local electric utility company immediately.
7
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