Carrier COBRA 48/50HJ004-014 - Manual (Page 23)

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Table 1F — Electrical Data (COBRA™ Energy Recovery 50HJ008-014 Units with 62AQ200) (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 circuit 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 allowable 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
50HJ012
208/230-3-60
STD NO 21.9
NONE —/— 74.9/ 74.9 — 80/ 80 † 81/ 81 465/465
017 21.7/ 25.0 74.9/ 74.9 — 80/ 80 † 81/ 81 465/465
010 33.4/ 38.5 77.6/ 84.0 — 90/ 90 † 81/ 82 465/465
012 66.7/ 77.0 119.3/132.1 — 125/150 † 114/126 465/465
012+017 88.4/102.0 146.4/163.4 — 150/175 † 139/155 465/465
010+012 104.2/120.3 166.2/156.2 — 175/175 † 157/176 465/465
STD YES 21.9
NONE —/— 80.9/ 80.9 — 90/ 90 † 87/ 87 469/469
017 21.7/ 25.0 80.9/ 80.9 — 90/ 90 † 87/ 87 469/469
010 33.4/ 38.5 82.4/ 88.2 — 90/100 † 87/ 87 469/469
012 66.7/ 77.0 124.1/136.3 — 125/150 † 120/131 469/469
012+017 88.4/102.0 151.2/167.6 — 175/175 † 145/160 469/469
010+012 104.2/120.3 171.0/160.4 — 175/175 † 163/181 469/469
HIGH STATIC NO 21.9
NONE —/— 79.3/ 79.3 — 90/ 90 † 86/ 86 488/488
017 21.7/ 25.0 79.3/ 79.3 — 90/ 90 † 86/ 86 488/488
010 33.4/ 38.5 82.3/ 88.8 — 90/100 † 86/ 87 488/488
012 66.7/ 77.0 124.0/136.9 — 125/150 † 119/131 488/488
012+017 88.4/102.0 151.1/168.2 — 175/175 † 144/160 488/488
010+012 104.2/120.3 170.9/160.9 — 175/200 † 162/181 488/488
HIGH STATIC YES 21.9
NONE —/— 85.3/ 85.3 — 90/ 90 † 92/ 92 493/493
017 21.7/ 25.0 85.3/ 85.3 — 90/ 90 † 92/ 92 493/493
010 33.4/ 38.5 87.1/ 93.0 — 100/100 † 92/ 92 493/493
012 66.7/ 77.0 128.8/141.1 — 150/150 † 125/136 493/493
012+017 88.4/102.0 155.9/172.4 — 175/175 † 150/165 493/493
010+012 104.2/120.3 175.7/165.1 — 200/200 † 168/186 493/493
460-3-60
STD NO 10.2
NONE — 35.1 40.0 — — 38.0 233.0
016 16.7 37.5 40.0 — 011 38.0 234.0
013 19.8 41.4 45.0 — 011 40.0 234.0
015 39.7 66.2 — 70.0 014 63.0 234.0
014+016 50.2 79.3 — 80.0 016 75.0 234.0
013+015 60.1 76.7 — 90.0 016 86.0 234.0
STD YES 10.2
NONE — 37.8 40.0 — — 40.0 235.0
016 16.7 39.6 45.0 — 011 40.0 236.0
013 19.8 43.5 45.0 — 011 42.0 236.0
015 39.7 68.3 — 70.0 014 65.0 236.0
014+016 50.2 81.4 — 90.0 016 77.0 236.0
013+015 60.1 78.8 — 90.0 016 89.0 236.0
HIGH STATIC NO 10.2
NONE — 37.7 40.0 — — 41.0 245.0
016 16.7 40.3 45.0 — 011 41.0 245.0
013 19.8 44.3 50.0 — 011 43.0 245.0
015 39.7 69.1 — 70.0 014 66.0 245.0
014+016 50.2 82.1 — 90.0 016 78.0 245.0
013+015 60.1 79.6 — 90.0 016 89.0 245.0
HIGH STATIC YES 10.2
NONE — 40.4 45.0 — — 43.0 247.0
016 16.7 42.4 50.0 — 011 43.0 247.0
013 19.8 46.4 50.0 — 011 45.0 247.0
015 39.7 71.2 — 80.0 014 68.0 247.0
014+016 50.2 84.2 — 90.0 016 80.0 247.0
013+015 60.1 81.7 — 90.0 016 92.0 247.0
50HJ014
208/230-3-60
STD NO 21.9
NONE —/— 82.5/ 82.5 — 90/ 90 † 89/ 89 550/550
017 21.7/ 25.0 82.5/ 82.5 — 90/ 90 † 89/ 89 550/550
010 33.4/ 38.5 82.3/ 88.8 — 90/100 † 89/ 89 550/550
012 66.7/ 77.0 124.0/136.9 — 125/150 † 119/131 550/550
012+017 88.4/102.0 151.1/168.2 — 175/175 † 144/160 550/550
010+012 104.2/120.3 170.9/160.9 — 175/200 † 162/181 550/550
STD YES 21.9
NONE —/— 88.5/ 88.5 — 100/100 † 95/ 95 555/555
017 21.7/ 25.0 88.5/ 88.5 — 100/100 † 95/ 95 555/555
010 33.4/ 38.5 87.1/ 93.0 — 100/100 † 95/ 95 555/555
012 66.7/ 77.0 128.8/141.1 — 150/150 † 125/136 555/555
012+017 88.4/102.0 155.9/172.4 — 175/175 † 150/165 555/555
010+012 104.2/120.3 175.7/165.1 — 200/200 † 168/186 555/555
460-3-60
STD NO 10.2
NONE — 39.3 45.0 — — 43.0 260.0
016 16.7 40.3 45.0 — 011 43.0 260.0
013 19.8 44.3 50.0 — 011 43.0 260.0
015 39.7 69.1 — 70.0 016 66.0 260.0
014+016 50.2 82.1 — 90.0 016 78.0 260.0
013+015 60.1 79.6 — 90.0 016 89.0 260.0
STD YES 10.2
NONE — 42.0 45.0 — — 45.0 262.0
016 16.7 42.4 50.0 — 011 45.0 262.0
013 19.8 46.4 50.0 — 011 45.0 262.0
015 39.7 71.2 — 80.0 016 68.0 262.0
014+016 50.2 84.2 — 90.0 016 80.0 262.0
013+015 60.1 81.7 — 90.0 016 92.0 262.0
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