
Table2A-- Electrical Data -- Units Without Optional Convenience Outlet
UNIT NOMINAL
50PG POWER SUPPLY
Volts-Ph-Hz
03 208/230-1-60
04 208/230-1-60
VOLTAGE COMPRESSOR
RANGE
OFM POWER ELECTRIC HEAT POWER SUPPLY
FLA IFM EXHAUST IFM
FLA FLA FLA TYPE Nominal
Min Max RLA LRA Qty (ea) (ea) FLA kW*
187 253 12.8 60 1 1.0 4.9
1.4
1.4
DISCONNECT
SIZE
187 283 18.4 83 1 1.0 4.9
MCA MOCPt FLA LRA
-- -- 21.9/21.9 25/25 22/22 74/74
10,8/12.5 2,3/ 3.0 21.9/21,9 28/28 22/22 74/74
STD 17.3/20.0 3.8/ 5.0 27.8/31.1 30/35 26/29 74/74
26.0/30.0 5.6/ 7.8 38.6/43.6 40/45 36/40 74/74
34.7/40.0 7.5/10.0 49.5/56.1 80/60 46/52 74/74
-- -- 21.9/21.9 25/25 22/22 74/74
10.8/12.5 2.3/ 3.0 21.9/21.9 28/25 22/22 74/74
ALT 17.3/20.0 3.8/ 5.0 27.8/31.1 30/35 26/29 74/74
26.0/30.0 5.6/ 7.8 38.6/43.6 40/45 36/40 74/74
34.7/40.0 7.5/10.0 49.5/56.1 80/60 46/52 74/74
-- -- 23.3/23.3 28/25 23/23 76/76
10.8/12.5 2.3/ 3.0 23.3/23.8 28/28 23/23 76/76
STD 17.3/20.0 3.8/ 5.0 29.5/32.9 30/35 27/30 76/76
26,0/30.0 8,6/ 7,8 40.4/48,4 45/80 37/42 76/76
34.7/40.0 7.5/10.0 51.3/57.9 60/60 47/53 76/76
-- -- 23.3/23.3 28/25 23/23 76/76
10.8/12.5 2.3/ 3.0 23.3/23.8 28/25 23/23 76/76
ALT 17.3/20.0 3.8/ 8.0 29.5/32.9 30/35 27/30 76/76
26.0/30.0 8.6/ 7.8 40.4/48.4 45/80 37/42 76/76
34.7/40.0 7.5/10.0 51.3/57.9 60/60 47/53 76/76
-- -- 28.2/25.2 30/30 24/24 97/97
10.8/12.5 2.3/ 3.0 28.2/28.2 30/30 24/24 97/97
STD 17.3/20.0 3.8/ 8.0 27.8/31.1 30/35 26/29 97/97
26.0/30.0 8.6/ 7.5 38.6/43.6 40/48 36/40 97/97
34.7/40.0 7.8/10.0 49.5/56.1 50/60 46/52 97/97
52.0/60.0 11.3/15.0 71.1/81.1 80/90 65/75 97/97
-- -- 28.2/25.2 30/30 24/24 97/97
10.8/12.5 2.3/ 3.0 25.2/25.2 30/30 24/24 97/97
17.3/20.0 3.8/ 8.0 27.8/31.1 30/35 26/29 97/97
ALT 26.0/30.0 8.6/ 7.5 38.6/43.6 40/48 36/40 97/97
34.7/40.0 7.5/10.0 49.5/86.1 50/60 46/82 97/97
52.0/60.0 11.3/15.0 71.1/81.1 80/90 65/75 97/97
-- -- 26.6/26.6 30/30 26/26 99/99
10.8/12.5 2.3/ 3.0 26.6/26.6 30/30 26/26 99/99
17.3/20.0 3.8/ 8.0 29.5/32.9 30/35 27/30 99/99
STD 26.0/30.0 5.6/ 7.5 40.4/45.4 45/80 37/42 99/99
34.7/40.0 7.5/10.0 51.3/87.9 60/60 47/53 99/99
52.0/60.0 11.3/18.0 72.9/82.9 80/90 67/76 99/99
-- -- 26.6/26.6 30/30 26/26 99/99
10.8/12.5 2.3/ 3.0 26.6/26.6 30/30 26/26 99/99
17.3/20.0 3.8/ 5.0 29.5/32.9 30/35 27/30 99/99
ALT 26.0/30.0 5.6/ 7.5 40.4/48.4 45/50 37/42 99/99
34.7/40.0 7.5/10.0 51.3/87.9 60/60 47/53 99/99
52.0/60.0 11.3/15.0 72.9/82.9 80/90 67/76 99/99
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
OFM -- Outdoor (Condenser) Fan Motor
RLA -- Rated Load Amps
*Heater capacity (kW) is based on heater voltage of 208 v, 240 v, 480 v or
600 v. If power distribution voltage to unit varies from rated heater voltage,
heater kW will vary accordingly.
tFuse or HACR circuit breaker.
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
greater than 2%. Use the following formula to determine the percent of
voltage imbalance.
% Voltage Imbalance
= 100 x max voltage deviation from average voltage
average voltage
Example: Supply voltage is 230-3-60.
A a c AB = 224 v
(_ BC = 231 v
AC = 226 v
Average Voltage -
224 + 231 + 226
3
681
=--
3
= 227
Determine maximum deviation from average voltage.
(AB) 227 = 224 = 3 v
(BC) 231 = 227 = 4 v
(AC) 227 = 226 = 1 v
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
4
% Voltage Imbalance = 100 x 22"_7-
= 1.76%
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%, 1
contact the local electric utility company immediately.
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