Disconnect - Carrier COBRA 48/50HJ004-014 Installation And Service

Table 1B — Electrical Data (COBRA™ Energy Recovery 50HJ004-007 Units with 62AQ060) (cont)
NOMINAL IFM
UNIT
V-PH-Hz TYPE
STD
50HJ005
460-3-60 HIGH STATIC
(cont)
HIGH STATIC
STD
208/230-1-60
STD
STD
STD
50HJ006 208/230-3-60
HIGH STATIC
HIGH STATIC
STD
460-3-60
STD
LEGEND
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
*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.
max voltage deviation from average voltage
= 100 x
average voltage
HEAT
HEATER
CONV 62AQ
CRHEATER
OUTLET FLA
---A00
NONE
006
YES 9.2
008
009
008+008
NONE
006
NO 9.2
008
009
008+008
NONE
006
YES 9.2
008
009
008+008
NONE —/—
002 23.5/27.1
003 31.4/36.3
NO 9.2
002+002 46.9/54.2
003+003 62.8/72.5
004+004 75.8/87.5
NONE —/—
002 23.5/27.1
003 31.4/36.3
YES 9.2
002+002 46.9/54.2
003+003 62.8/72.5
004+004 75.8/87.5
NONE —/—
002 13.6/15.6
004 21.9/25.3
NO 9.2
005 33.4/38.5
004+004 43.8/50.5
004+005 55.2/63.8
NONE —/—
002 13.6/15.6
004 21.9/25.3
YES 9.2
005 33.4/38.5
004+004 43.8/50.5
004+005 55.2/63.8
NONE —/—
002 13.6/15.6
004 21.9/25.3
NO 9.2
005 33.4/38.5
004+004 43.8/50.5
004+005 55.2/63.8
NONE —/—
002 13.6/15.6
004 21.9/25.3
YES 9.2
005 33.4/38.5
004+004 43.8/50.5
004+005 55.2/63.8
NONE
006
008
NO 9.2
009
008+008
008+009
NONE
006
008
YES 9.2
009
008+008
008+009
POWER SUPPLY
FUSE OR
FLA MCA
HACR BKR
— 17.9 20
7.2 18.8 25
13.8 27.1 30
16.8 30.8 35
27.7 44.4 45
— 15.6 20
7.2 17.1 20
13.8 25.4 30
16.8 29.1 30
27.7 42.7 45
— 18.3 20
7.2 19.2 25
13.8 27.5 30
16.8 31.2 35
27.7 44.8 45
55.5/ 55.5 70/70
55.5/ 55.5 —
59.5/ 65.5 —
78.9/ 87.9 —
98.7/110.8 —
115.0/129.6 —
61.5/ 61.5 70/70
61.5/ 61.5 —
64.3/ 69.7 —
83.7/ 92.1 —
103.5/115.0 —
119.8/133.8 —
38.1/ 38.1 45/45
38.1/ 38.1 45/45
44.1/ 48.3 50/50
58.4/ 64.9 —
71.5/ 79.9 —
85.8/ 96.4 —
44.1/ 44.1 50/50
44.1/ 44.1 50/50
48.9/ 52.5 60/60
63.2/ 69.1 —
76.3/ 84.1 —
90.6/100.6 —
39.8/ 39.8 45/45
39.8/ 39.8 45/45
45.9/ 50.1 50/60
60.3/ 66.7 —
73.3/ 81.7 —
87.6/ 98.3 —
45.8/ 45.8 50/50
45.8/ 45.8 50/50
50.7/ 54.3 60/60
65.1/ 70.9 —
78.1/ 85.9 —
92.4/102.5 —
— 19.3 25
7.2 19.3 25
13.8 25.4 30
16.8 29.1 30
27.7 42.7 45
30.7 46.4 50
— 22.0 25
7.2 22.0 25
13.8 27.5 30
16.8 31.2 35
27.7 44.8 45
30.7 48.5 50
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
Average Voltage =
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%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact
your local electric utility company immediately.
15
SINGLE DISCONNECT SIZE*
POINT BOX
CRSINGLE
MOCP FLA
---A00
— — 21
— — 21
— — 21
— 025 32
— 025 44
— — 16
— — 16
— — 19
— — 28
— 025 40
— — 22
— — 22
— — 22
— 025 32
— 025 45
— — 56/ 56
70/ 70 004 56/ 56
70/ 70 004 57/ 62
80/ 90 005 75/ 83
100/125 005 93/104
125/150 005 108/121
— — 61/ 61
70/ 70 004 61/ 61
70/ 70 005 62/ 67
90/100 005 80/ 88
110/125 005 98/109
125/150 005 113/126
— — 39/ 39
— — 39/ 39
— — 42/ 46
60/ 70 002 56/ 62
80/ 80 003 68/ 75
90/100 003 81/ 91
— — 44/ 44
— — 44/ 44
— — 48/ 51
70/ 70 003 61/ 66
80/ 90 003 73/ 80
100/110 003 86/ 95
— — 41/ 41
— — 41/ 41
— — 44/ 48
70/ 70 003 58/ 63
80/ 90 003 70/ 77
90/100 003 83/ 93
— — 46/ 46
— — 46/ 46
— — 50/ 53
70/ 80 003 63/ 68
80/ 90 003 75/ 82
100/110 003 88/ 97
— — 20
— — 20
— — 20
— — 28
— 025 40
— 025 44
— — 25
— — 25
— — 25
— 025 32
— 025 45
— 025 48
452 + 464 + 455
3
1371
=
3
= 457
7
457
LRA
75
75
75
75
75
84
85
85
85
85
89
90
90
90
90
250/250
250/250
250/250
250/250
250/250
250/250
255/255
255/255
255/255
255/255
255/255
255/255
202/202
202/202
202/202
202/202
202/202
202/202
207/207
207/207
207/207
207/207
207/207
207/207
221/221
221/221
221/221
221/221
221/221
221/221
226/226
226/226
226/226
226/226
226/226
226/226
101
101
101
101
101
101
106
106
106
106
106
106