Table 2 -- Electrical Data
UNIT
50HJ
015
(Standard
IFM)
015
(Optional
IFM)
017
NOMINAL VOLTAGE COMPRESSOR OFM IFM POWER ELECTRIC
VOLTAGE RANGE No. 1 No, 2 EXHAUST HEAT*
(3 Ph, 60 Hz) Min Max RLA LRA RLA LRA Qty Hp FLA (ea) Hp FLA FLA LRA kW FLA
208/230 187 253 20.7 156 20.7 156 3 0.5 1.7 2.9
460 414 506 10 75 10 75 3 0.8 0.8 2.9 4.2
575 518 633 8.2 54 8.2 54 3 0.5 0.75 3.0 3.9
POWER
SUPPLY
MCA MOCPt
-- -- 60/60 80/80
4.6 18.8 -- -- 65/65 80/80
14/19 39/45 60/67 70/70
8.8/ 4.6 18.8 14/19 39/48 66/73 80/80
8.4 26/34 71/82 100/113 100/125
4.6 18.8 26/34 71/82 106/119 110/125
42/56"* 117/135 157/146 175/175
4.6 18.8 42/56"* 117/135 163/151 175/175
-- -- 29 35
2.3 6.0 -- -- 31 40
15 18 29 35
2.3 6.0 15 18 31 40
32 39 54 60
2.3 6.0 32 39 57 60
55** 66 71 80
2,3 6,0 55** 66 74 80
-- -- 25 30
2.1 4.8 -- -- 27 30
37** 37 51
2.1 4.8 37** 37 54
208/230 187 253 20.7 156 20.7 156 3 0.5 1.7 3.7
60
60
-- -- 62/63 80/80
4.6 18.8 -- -- 67/67 80/80
14/19 39/45 62/70 80/80
10.5/ 4.6 18.8 14/19 39/45 68/76 80/80
11.0 26/34 71/82 102/116 110/125
4.6 18.8 26/34 71/82 108/122 110/125
42/56"* 117/135 189/149 178/175
4.6 18.8 42/56"* 117/135 165/155 175/175
460 414 506 10 75 10 75 3 0.5 0.8 3.7 4.8
2.3 6.0 --
15
2.3 6.0 15
32
2.3 6.0 32
55**
2.3 6.0 55**
-- 30 35
-- 32 40
18 30 35
18 32 40
39 55 60
39 58 60
66 72 80
66 75 80
-- -- 82/82 110/110
4.6 18.8 -- -- 86/86 110/110
26/34 71/82 109/122 110/125
15.8/ 4.6 18.8 26/34 71/82 114/128 125/150
15.8 42/56 117/135 166/155 175/175
4.6 18.8 42/56 117/135 172/161 175/175
56/75"* 156/180 176/200 200/225
4.6 18.8 56/75"* 156/180 182/206 200/225
208/230 187 253 32.1 195 20.7 156 3 0.5 1.7 5.0
460 414 508 16.4 95 10 70 3 0.5 0.8 5.0 7.9
575 518 633 12 80 8.2 54 3 0.5 0.75 5.0 6.0
-- -- 41 50
2.3 6.0 -- -- 43 50
32 39 59 60
2.3 6.0 32 39 62 70
55 66 76 90
2.3 6.0 55 66 79 90
80** 96 106 128
2.3 6.0 80** 96 109 125
-- -- 31 40
2.1 4.8 -- -- 34 40
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
OPM -- Outdoor (Condenser) Fan Motor
RLA -- Rated Load Amps
c t u,
_ISTE_
EXAMPLE: Supply voltage is 460-3-60.
AB = 452 v
A a c BC = 464 v
(_ AC = 455 v
Average Voltage =
452 + 464 + 455
3
1371
=--
3
= 457
*Heater capacity (kW) is based on heater voltage of 208 v, 240 v, 480 v, and
575 v. Heaters are rated at 240 v, 480 v, or 875 v. If power distribution volt-
age to unit varies from rated heater voltage, heater kW will vary accordingly.
l-Fuse or HACR circuit breaker.
**Heaters are field installed only.
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. Canadian 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
o
greater than 2_. Use the following formula to determine the percent of volt-
age imbalance,
% Voltage Imbalance
= 100 x max voltage deviation from average voltage
average voltage
Determine maximum deviation from average voltage.
(AB) 457 - 452 = 5 v
(BC) 464 -487 = 7 v
(AC) 457 - 455 = 2 v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
7
% Voltage Imbalance = 100x
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maximum
allowable 2%.
I IMPORTANT: If the supply voltage phase imbalance is more than ]2%, contact your local electric utility company immediately.
J
3. MCA calculation for units with electric heaters over 80 kW = (1.25 x IFM
amps) + (1.00 x heater FLA).
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