Carrier 50PG03-07 Installation Instructions Manual page 17

Table 3 – Electrical Data - - Units With Optional Powered Convenience Outlet
VOLTAGE
NOMINAL
RANGE
UNIT POWER SUPPLY
50PG
Min Max
Volts-Ph-Hz
03
208/230-1-60 187 253
208/230-1-60 187 253
04
208/230-3-60 187 253
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 208v, 240v, 480v, or 600v. If power
distribution voltage to unit varies from rated heater voltage, heater kW will vary accord-
ingly.
{ Fuse 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 percentage of voltage imbalance.
% Voltage Imbalance = 100 x
COMPRESSOR
OFM
POWER
EXHAUST
FLA
FLA
RLA LRA
—
12.8 60 1.0
1.4
—
15.4 83 1.0
1.4
11.5 77 1.0 —
max voltage deviation from average voltage
average voltage
ELECTRIC HEAT
IFM
IFM
FLA
Nominal
TYPE
FLA
kW*
— —
10.8/12.5 2.3/ 3.0
17.3/20.0 3.8/ 5.0
Low
26.0/30.0 5.6/ 7.5
34.7/40.0 7.5/10.0
— —
10.8/12.5 2.3/ 3.0
17.3/20.0 3.8/ 5.0
High
26.0/30.0 5.6/ 7.5
34.7/40.0 7.5/10.0
4.9
— —
10.8/12.5 2.3/ 3.0
17.3/20.0 3.8/ 5.0
Low
26.0/30.0 5.6/ 7.5
34.7/40.0 7.5/10.0
— —
10.8/12.5 2.3/ 3.0
High 17.3/20.0 3.8/ 5.0
26.0/30.0 5.6/ 7.5
34.7/40.0 7.5/10.0
— —
10.8/12.5 2.3/ 3.0
17.3/20.0 3.8/ 5.0
Low
26.0/30.0 5.6/ 7.5
34.7/40.0 7.5/10.0
52.0/60.0 11.3/15.0
— —
10.8/12.5 2.3/ 3.0
17.3/20.0 3.8/ 5.0
High
26.0/30.0 5.6/ 7.5
34.7/40.0 7.5/10.0
52.0/60.0 11.3/15.0
4.9
— —
10.8/12.5 2.3/ 3.0
17.3/20.0 3.8/ 5.0
Low
26.0/30.0 5.6/ 7.5
34.7/40.0 7.5/10.0
52.0/60.0 11.3/15.0
— —
10.8/12.5 2.3/ 3.0
17.3/20.0 3.8/ 5.0
High
26.0/30.0 5.6/ 7.5
34.7/40.0 7.5/10.0
52.0/60.0 11.3/15.0
— —
6.3/ 7.2 2.3/ 3.0
10.0/11.5 3.8/ 5.0
Low
15.0/17.3 5.6/ 7.5
20.0/23.1 7.5/10.0
30.0/34.6 11.3/15.0
4.9
— —
6.3/ 7.2 2.3/ 3.0
10.0/11.5 3.8/ 5.0
High
15.0/17.3 5.6/ 7.5
20.0/23.1 7.5/10.0
30.0/34.6 11.3/15.0
Example: Supply voltage is 230 ---3 ---60
AB = 224 v
BC = 231 v
AC = 226 v
Average Voltage =
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.
% Voltage Imbalance = 100 x
= 1.76%
This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric
utility company immediately.
17
DISCONNECT
POWER SUPPLY
SIZE
MCA MOCP† FLA
26.7/26.7 30/30 27/27 79/79
26.7/27.8 30/30 27/27 79/79
33.8/37.1 35/40 31/34 79/79
44.6/49.6 45/50 41/46 79/79
55.5/62.1 60/70 51/57 79/79
26.7/26.7 30/30 27/27 79/79
26.7/27.8 30/30 27/27 79/79
33.8/37.1 35/40 31/34 79/79
44.6/49.6 45/50 41/46 79/79
55.5/62.1 60/70 51/57 79/79
28.1/28.1 30/30 29/29 81/81
28.1/29.5 30/30 29/29 81/81
35.5/38.9 40/40 33/36 81/81
46.4/51.4 50/60 43/47 81/81
57.3/63.9 60/70 53/59 81/81
28.1/28.1 30/30 29/29 81/81
28.1/29.5 30/30 29/29 81/81
35.5/38.9 40/40 33/36 81/81
46.4/51.4 50/60 43/47 81/81
57.3/63.9 60/70 53/59 81/81
30.0/30.0 30/30 30/30 102/102
30.0/30.0 30/30 30/30 102/102
33.8/37.1 35/40 31/34 102/102
44.6/49.6 45/50 41/46 102/102
55.5/62.1 60/70 51/57 102/102
77.1/87.1 80/90 71/80 102/102
30.0/30.0 30/30 30/30 102/102
30.0/30.0 30/30 30/30 102/102
33.8/37.1 35/40 31/34 102/102
44.6/49.6 45/50 41/46 102/102
55.5/62.1 60/70 51/57 102/102
77.1/87.1 80/90 71/80 102/102
31.4/31.4 35/35 32/32 104/104
31.4/31.4 35/35 32/32 104/104
35.5/38.9 40/40 33/36 104/104
46.4/51.4 50/60 43/47 104/104
57.3/63.9 60/70 53/59 104/104
78.9/88.9 80/90 73/82 104/104
31.4/31.4 35/35 32/32 104/104
31.4/31.4 35/35 32/32 104/104
35.5/38.9 40/40 33/36 104/104
46.4/51.4 50/60 43/47 104/104
57.3/63.9 60/70 53/59 104/104
78.9/88.9 80/90 73/82 104/104
25.1/25.1 30/30 26/26 96/96
25.1/25.1 30/30 26/26 96/96
25.1/26.5 30/30 26/26 96/96
30.9/33.8 35/35 28/31 96/96
37.1/41.0 40/45 34/38 96/96
49.6/55.4 50/60 46/51 96/96
25.1/25.1 30/30 26/26 96/96
25.1/25.1 30/30 26/26 96/96
25.1/26.5 30/30 26/26 96/96
30.9/33.8 35/35 28/31 96/96
37.1/41.0 40/45 34/38 96/96
49.6/55.4 50/60 46/51 96/96
224 + 231 + 226
3
681
=
3
=
227
4
227
LRA