Table 1D — Electrical Data (COBRA™ Energy Recovery 50HJ004-007 Units with 62AQ100) (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
50HJ006
STD
208/230-3-60
HIGH STATIC
HIGH STATIC
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
HEATER
CONV
62AQ
CRHEATER
OUTLET
FLA
---A00
NONE
006
YES
15.1
008
009
008+008
NONE
006
NO
15.1
008
009
008+008
NONE
006
YES
15.1
008
009
008+008
NONE
002
23.5/27.1
003
31.4/36.3
NO
15.1
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
15.1
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
15.1
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
15.1
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
15.1
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
15.1
005
33.4/38.5
004+004
43.8/50.5
004+005
55.2/63.8
NONE
006
008
NO
15.1
009
008+008
008+009
HEAT
POWER SUPPLY
FUSE OR
FLA
MCA
HACR BKR
—
20.9
25
7.2
22.2
30
13.8
30.5
35
16.8
34.2
40
27.7
47.7
50
—
18.6
25
7.2
20.5
25
13.8
28.8
35
16.8
32.5
35
27.7
46.0
50
—
21.3
25
7.2
22.6
30
13.8
30.9
35
16.8
34.6
40
27.7
48.1
50
—/—
61.4/ 61.4
70/70
61.4/ 61.4
—
65.8/ 71.8
—
85.2/ 94.2
—
105.1/117.2
—
121.3/135.9
—
—/—
67.4/ 67.4
80/80
67.4/ 67.4
—
70.6/ 76.0
—
90.0/ 98.4
—
109.9/121.4
—
126.1/140.1
—
—/—
44.0/ 44.0
50/50
44.0/ 44.0
50/50
50.9/ 55.1
60/60
65.2/ 71.6
—
78.2/ 86.7
—
92.6/103.2
—
—/—
50.0/ 50.0
60/60
50.0/ 50.0
60/60
55.7/ 59.3
—
70.0/ 75.8
—
83.0/ 90.9
—
97.4/107.4
—
—/—
45.7/ 45.7
60/60
45.7/ 45.7
60/60
52.6/ 56.8
—
66.9/ 73.3
—
79.9/ 88.4
—
94.3/104.9
—
—/—
51.7/ 51.7
60/60
51.7/ 51.7
60/60
57.4/ 61.0
—
71.7/ 77.5
—
84.7/ 92.6
—
99.1/109.1
—
—
22.2
25
7.2
22.2
25
13.8
28.8
35
16.8
32.5
35
27.7
46.0
50
30.7
49.8
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.
19
SINGLE
DISCONNECT SIZE*
POINT BOX
CRSINGLE
MOCP
FLA
---A00
—
—
25
—
—
25
—
025
25
—
025
35
—
025
48
—
—
19
—
—
19
—
025
19
—
025
31
—
025
43
—
—
25
—
—
25
—
025
25
—
025
36
—
025
48
—
—
62/ 62
70/ 70
004
62/ 62
70/ 80
004
64/ 69
90/100
005
81/ 90
110/125
005
100/111
125/150
005
115/128
—
—
68/ 68
80/ 80
004
68/ 68
80/ 80
005
69/ 74
90/100
005
87/ 95
110/125
005
105/116
150/150
005
120/133
—
—
46/ 46
—
—
46/ 46
—
—
49/ 53
70/ 80
002
62/ 68
80/ 90
003
74/ 82
100/110
003
88/ 97
—
—
51/ 51
—
—
51/ 51
70/ 70
002
55/ 58
80/ 80
003
68/ 73
90/100
003
80/ 87
100/110
003
93/102
—
—
48/ 48
—
—
48/ 48
60/ 70
002
51/ 55
70/ 80
002
64/ 70
80/ 90
003
76/ 84
100/110
003
90/ 99
—
—
53/ 53
—
—
53/ 53
70/ 70
002
57/ 60
80/ 80
003
70/ 75
90/100
003
82/ 89
100/110
003
95/104
—
—
23
—
—
23
—
025
23
—
025
31
—
025
43
—
025
47
452 + 464 + 455
3
1371
=
3
= 457
7
457
LRA
88
88
88
88
96
97
98
98
98
108
102
103
103
103
110
276/276
276/276
276/276
276/276
276/276
276/276
281/281
281/281
281/281
281/281
281/281
281/281
228/228
228/228
228/228
228/228
228/228
228/228
233/233
233/233
233/233
233/233
233/233
233/233
247/247
247/247
247/247
247/247
247/247
247/247
252/252
252/252
252/252
252/252
252/252
252/252
114
114
114
114
114
114