Carrier COBRA 48/50HJ004-014 - Manual (Page 26)

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Table 1H — Electrical Data (COBRA™ Energy Recovery 50HJ008-014 Units with 62AQ300) (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 29.8
NONE —/— 82.8/ 82.8 — 90/ 90 † 90/ 90 519/519
017 21.7/ 25.0 82.8/ 82.8 — 90/ 90 † 90/ 90 519/519
010 33.4/ 38.5 86.4/ 92.8 — 100/110 † 90/ 91 519/519
012 66.7/ 77.0 128.1/140.9 — 150/150 † 123/135 519/519
012+017 88.4/102.0 155.2/172.2 — 175/175 † 148/164 519/519
010+012 104.2/120.3 175.0/165.0 — 175/200 † 166/185 519/519
STD YES 29.8
NONE —/— 88.8/ 88.8 — 100/100 † 96/ 96 523/523
017 21.7/ 25.0 88.8/ 88.8 — 100/100 † 96/ 96 523/523
010 33.4/ 38.5 91.2/ 97.0 — 110/110 † 96/ 96 523/523
012 66.7/ 77.0 132.9/145.1 — 150/150 † 129/140 523/523
012+017 88.4/102.0 160.0/176.4 — 175/200 † 154/169 523/523
010+012 104.2/120.3 179.8/169.2 — 200/200 † 172/190 523/523
HIGH STATIC NO 29.8
NONE —/— 87.2/ 87.2 — 100/100 † 95/ 95 542/542
017 21.7/ 25.0 87.2/ 87.2 — 100/100 † 95/ 95 542/542
010 33.4/3 8.5 90.8/ 97.2 — 100/110 † 95/ 96 542/542
012 66.7/ 77.0 132.5/145.3 — 150/150 † 128/140 542/542
012+017 88.4/102.0 159.6/176.6 — 175/200 † 153/169 542/542
010+012 104.2/120.3 179.4/169.4 — 200/200 † 171/190 542/542
HIGH STATIC YES 29.8
NONE —/— 93.2/ 93.2 — 100/100 † 101/101 547/547
017 21.7/ 25.0 93.2/ 93.2 — 100/100 † 101/101 547/547
010 33.4/ 38.5 95.6/101.4 — 110/110 † 101/101 547/547
012 66.7/ 77.0 137.3/149.5 — 150/150 † 134/145 547/547
012+017 88.4/102.0 164.4/180.8 — 175/200 † 159/174 547/547
010+012 104.2/120.3 184.2/173.6 — 200/200 † 177/195 547/547
460-3-60
STD NO 15.8
NONE — 40.7 45.0 — — 44.0 260.0
016 16.7 45.8 60.0 — 011 44.0 261.0
013 19.8 49.7 60.0 — 011 47.0 261.0
014 33.4 66.7 — 80.0 014 62.0 261.0
014+016 50.2 87.6 — 100.0 016 81.0 261.0
013+015 60.1 85.0 — 110.0 016 93.0 261.0
STD YES 15.8
NONE — 43.4 45.0 — — 47.0 262.0
016 16.7 47.9 60.0 — 014 47.0 263.0
013 19.8 51.8 60.0 — 011 49.0 263.0
014 33.4 68.8 — 80.0 014 65.0 263.0
014+016 50.2 89.7 — 100.0 016 84.0 263.0
013+015 60.1 87.1 — 110.0 016 95.0 263.0
HIGH STATIC NO 15.8
NONE — 43.3 50.0 — — 47.0 272.0
016 16.7 48.4 60.0 — 014 47.0 272.0
013 19.8 52.3 60.0 — 011 50.0 272.0
014 33.4 69.3 — 80.0 014 65.0 272.0
014+016 50.2 90.2 — 100.0 016 84.0 272.0
013+015 60.1 87.6 — 110.0 016 96.0 272.0
HIGH STATIC YES 15.8
NONE — 46.0 50.0 — 0.0 50.0 274.0
016 16.7 50.5 60.0 — 014 50.0 274.0
013 19.8 54.4 60.0 — 011 52.0 274.0
014 33.4 71.4 — 90.0 014 68.0 274.0
014+016 50.2 92.3 — 100.0 016 87.0 274.0
013+015 60.1 89.7 — 110.0 016 98.0 274.0
50HJ014 208/230-3-60
STD NO 29.8
NONE —/— 90.4/ 90.4 — 100/100 † 98/ 98 604/604
017 21.7/ 25.0 90.4/ 90.4 — 100/100 † 98/ 98 604/604
010 33.4/ 38.5 90.8/ 97.2 — 100/110 † 98/ 98 604/604
012 66.7/ 77.0 132.5/145.3 — 150/150 † 128/140 604/604
012+017 88.4/102.0 159.6/176.6 — 175/200 † 153/169 604/604
010+012 104.2/120.3 179.4/169.4 — 200/200 † 171/190 604/604
STD YES 29.8
NONE —/— 96.4/ 96.4 — 100/100 † 104/104 609/609
017 21.7/ 25.0 96.4/ 96.4 — 100/100 † 104/104 609/609
010 33.4/ 38.5 95.6/101.4 — 110/110 † 104/104 609/609
012 66.7/ 77.0 137.3/149.5 — 150/150 † 134/145 609/609
012+017 88.4/102.0 164.4/180.8 — 175/200 † 159/174 609/609
010+012 104.2/120.3 184.2/173.6 — 200/200 † 177/195 609/609
STD NO 15.8
NONE — 44.9 50.0 — — 49.0 287.0
016 16.7 48.4 60.0 — 014 49.0 287.0
013 19.8 52.3 60.0 — 011 50.0 287.0
016 16.7 48.4 — 70.0 014 49.0 287.0
014+016 50.2 90.2 — 100.0 016 84.0 287.0
013+015 60.1 87.6 — 110.0 016 96.0 287.0
STD YES 15.8
NONE — 47.6 50.0 — — 51.0 289.0
016 16.7 50.5 60.0 — 014 51.0 289.0
013 19.8 54.4 60.0 — 011 52.0 289.0
016 16.7 50.5 — 70.0 014 51.0 289.0
014+016 50.2 92.3 — 100.0 016 87.0 289.0
013+015 60.1 89.7 — 110.0 016 98.0 289.0
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
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