Carrier COBRA 48/50HJ004-014 - Manual (Page 15)

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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
50HJ005
(cont)
460-3-60
STD YES 9.2
NONE — 17.9 20 — — 21 75
006 7.2 18.8 25 — — 21 75
008 13.8 27.1 30 — — 21 75
009 16.8 30.8 35 — 025 32 75
008+008 27.7 44.4 45 — 025 44 75
HIGH STATIC NO 9.2
NONE — 15.6 20 — — 16 84
006 7.2 17.1 20 — — 16 85
008 13.8 25.4 30 — — 19 85
009 16.8 29.1 30 — — 28 85
008+008 27.7 42.7 45 — 025 40 85
HIGH STATIC YES 9.2
NONE — 18.3 20 — — 22 89
006 7.2 19.2 25 — — 22 90
008 13.8 27.5 30 — — 22 90
009 16.8 31.2 35 — 025 32 90
008+008 27.7 44.8 45 — 025 45 90
50HJ006
208/230-1-60
STD NO 9.2
NONE —/— 55.5/ 55.5 70/70 — — 56/ 56 250/250
002 23.5/27.1 55.5/ 55.5 — 70/ 70 004 56/ 56 250/250
003 31.4/36.3 59.5/ 65.5 — 70/ 70 004 57/ 62 250/250
002+002 46.9/54.2 78.9/ 87.9 — 80/ 90 005 75/ 83 250/250
003+003 62.8/72.5 98.7/110.8 — 100/125 005 93/104 250/250
004+004 75.8/87.5 115.0/129.6 — 125/150 005 108/121 250/250
STD YES 9.2
NONE —/— 61.5/ 61.5 70/70 — — 61/ 61 255/255
002 23.5/27.1 61.5/ 61.5 — 70/ 70 004 61/ 61 255/255
003 31.4/36.3 64.3/ 69.7 — 70/ 70 005 62/ 67 255/255
002+002 46.9/54.2 83.7/ 92.1 — 90/100 005 80/ 88 255/255
003+003 62.8/72.5 103.5/115.0 — 110/125 005 98/109 255/255
004+004 75.8/87.5 119.8/133.8 — 125/150 005 113/126 255/255
208/230-3-60
STD NO 9.2
NONE —/— 38.1/ 38.1 45/45 — — 39/ 39 202/202
002 13.6/15.6 38.1/ 38.1 45/45 — — 39/ 39 202/202
004 21.9/25.3 44.1/ 48.3 50/50 — — 42/ 46 202/202
005 33.4/38.5 58.4/ 64.9 — 60/ 70 002 56/ 62 202/202
004+004 43.8/50.5 71.5/ 79.9 — 80/ 80 003 68/ 75 202/202
004+005 55.2/63.8 85.8/ 96.4 — 90/100 003 81/ 91 202/202
STD YES 9.2
NONE —/— 44.1/ 44.1 50/50 — — 44/ 44 207/207
002 13.6/15.6 44.1/ 44.1 50/50 — — 44/ 44 207/207
004 21.9/25.3 48.9/ 52.5 60/60 — — 48/ 51 207/207
005 33.4/38.5 63.2/ 69.1 — 70/ 70 003 61/ 66 207/207
004+004 43.8/50.5 76.3/ 84.1 — 80/ 90 003 73/ 80 207/207
004+005 55.2/63.8 90.6/100.6 — 100/110 003 86/ 95 207/207
HIGH STATIC NO 9.2
NONE —/— 39.8/ 39.8 45/45 — — 41/ 41 221/221
002 13.6/15.6 39.8/ 39.8 45/45 — — 41/ 41 221/221
004 21.9/25.3 45.9/ 50.1 50/60 — — 44/ 48 221/221
005 33.4/38.5 60.3/ 66.7 — 70/ 70 003 58/ 63 221/221
004+004 43.8/50.5 73.3/ 81.7 — 80/ 90 003 70/ 77 221/221
004+005 55.2/63.8 87.6/ 98.3 — 90/100 003 83/ 93 221/221
HIGH STATIC YES 9.2
NONE —/— 45.8/ 45.8 50/50 — — 46/ 46 226/226
002 13.6/15.6 45.8/ 45.8 50/50 — — 46/ 46 226/226
004 21.9/25.3 50.7/ 54.3 60/60 — — 50/ 53 226/226
005 33.4/38.5 65.1/ 70.9 — 70/ 80 003 63/ 68 226/226
004+004 43.8/50.5 78.1/ 85.9 — 80/ 90 003 75/ 82 226/226
004+005 55.2/63.8 92.4/102.5 — 100/110 003 88/ 97 226/226
460-3-60
STD NO 9.2
NONE — 19.3 25 — — 20 101
006 7.2 19.3 25 — — 20 101
008 13.8 25.4 30 — — 20 101
009 16.8 29.1 30 — — 28 101
008+008 27.7 42.7 45 — 025 40 101
008+009 30.7 46.4 50 — 025 44 101
STD YES 9.2
NONE — 22.0 25 — — 25 106
006 7.2 22.0 25 — — 25 106
008 13.8 27.5 30 — — 25 106
009 16.8 31.2 35 — 025 32 106
008+008 27.7 44.8 45 — 025 45 106
008+009 30.7 48.5 50 — 025 48 106
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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