Carrier COBRA 48/50HJ004-014 - Manual (Page 16)

16
Table 1B — Electrical Data (COBRA™ Energy Recovery 50HJ004-007 Units with 62AQ060) (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
HIGH STATIC NO 9.2
NONE — 20.1 25 — — 20 110
006 7.2 20.1 25 — — 20 111
008 13.8 26.2 30 — — 20 111
009 16.8 29.9 30 — — 29 111
008+008 27.7 43.5 45 — 025 41 111
008+009 30.7 47.2 50 — 025 44 111
HIGH STATIC YES 9.2
NONE — 22.8 25 — — 26 115
006 7.2 22.8 25 — — 26 116
008 13.8 28.3 30 — — 26 116
009 16.8 32.0 35 — 025 33 116
008+008 27.7 45.6 50 — 025 46 116
008+009 30.7 49.3 50 — 025 49 116
50HJ007
208/230-3-60
STD NO 9.2
NONE —/— 42.0/ 42.0 50/50 — — 42/42 234/234
002 13.6/15.6 42.0/ 42.0 50/50 — — 42/42 234/234
004 21.9/25.3 44.1/ 48.3 50/50 — — 42/46 234/234
005 33.4/38.5 58.4/ 64.9 — 60/ 70 002 56/62 234/234
004+004 43.8/50.5 71.5/ 79.9 — 80/ 80 003 68/75 234/234
004+005 55.2/63.8 85.8/ 96.4 — 90/100 003 81/91 234/234
STD YES 9.2
NONE —/— 48.0/ 48.0 60/60 — — 48/48 239/239
002 13.6/15.6 48.0/ 48.0 60/60 — — 48/48 239/239
004 21.9/25.3 48.9/ 52.5 60/60 — — 48/51 239/239
005 33.4/38.5 63.2/ 69.1 — 70/ 70 003 61/66 239/239
004+004 43.8/50.5 76.3/ 84.1 — 80/ 90 003 73/80 239/239
004+005 55.2/63.8 90.6/100.6 — 100/110 003 86/95 239/239
HIGH STATIC NO 9.2
NONE —/— 43.7/ 43.7 50/50 — — 44/44 253/253
002 13.6/15.6 43.7/ 43.7 50/50 — — 44/44 253/253
004 21.9/25.3 45.9/ 50.1 50/60 — — 44/48 253/253
005 33.4/38.5 60.3/ 66.7 — 70/ 70 003 58/63 253/253
004+004 43.8/50.5 73.3/ 81.7 — 80/ 90 003 70/77 253/253
004+005 55.2/63.8 87.6/ 98.3 — 90/100 003 83/93 253/253
HIGH STATIC YES 9.2
NONE —/— 49.7/ 49.7 60/60 — — 50/50 258/258
002 13.6/15.6 49.7/ 49.7 60/60 — — 50/50 258/258
004 21.9/25.3 50.7/ 54.3 60/60 — — 50/53 258/258
005 33.4/38.5 65.1/ 70.9 — 70/ 80 003 63/68 258/258
004+004 43.8/50.5 78.1/ 85.9 — 80/ 90 003 75/82 258/258
004+005 55.2/63.8 92.4/102.5 — 100/110 003 88/97 258/258
460-3-60
STD NO 9.2
NONE — 19.8 25 — — 20 114
006 7.2 19.8 25 — — 20 114
008 13.8 25.4 30 — — 20 114
009 16.8 29.1 30 — — 28 114
008+008 27.7 42.7 45 — 025 40 114
008+009 30.7 46.4 50 — 025 44 114
STD YES 9.2
NONE — 22.5 25 — — 26 118
006 7.2 22.5 25 — — 26 119
008 13.8 27.5 30 — — 26 119
009 16.8 31.2 35 — 025 32 119
008+008 27.7 44.8 45 — 025 45 119
008+009 30.7 48.5 50 — 025 48 119
HIGH STATIC NO 9.2
NONE — 20.6 25 — — 21 123
006 7.2 20.6 25 — — 21 124
008 13.8 26.2 30 — — 21 124
009 16.8 29.9 30 — — 29 124
008+008 27.7 43.5 45 — 025 41 124
008+009 30.7 47.2 50 — 025 44 124
HIGH STATIC YES 9.2
NONE — 23.3 30 — — 26 128
006 7.2 23.3 30 — — 26 128
008 13.8 28.3 30 — — 26 128
009 16.8 32.0 35 — 025 33 128
008+008 27.7 45.6 50 — 025 46 128
008+009 30.7 49.3 50 — 025 49 128
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
457