Electrical Data - Carrier WEATHERMASTER 50HJQ004-016 Product Data

Electrical data — 50HJQ (cont)
50HJQ004-012 STANDARD MOTOR UNITS WITHOUT ELECTRICAL CONVENIENT OUTLET (cont)
VOLTAGE
NOMINAL
UNIT
RANGE
VOLTAGE
50HJQ
(V-Ph-Hz)
Min
208/230-3-60 187
008
1
(7 / Tons)
2
460-3-60 414
208/230-3-60 187
009
(8 1 / Tons)
2
460-3-60 414
208/230-3-60 187
012
(10 Tons)
460-3-60 414
LEGEND
FLA — Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
IFM — Indoor-Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
NEC — National Electrical Code
OFM — Outdoor-Fan Motor
RLA — Rated Load Amps
*Heater capacity (kW) is based on heater voltage of 208 v, 240 v, or 480 v. If
power distribution voltage to unit varies from rated heater voltage, heater kW
will vary accordingly.
†Heaters are field installed only.
**Fuse or HACR circuit breaker.
††Electrical disconnect cannot be used if electric heater is installed.
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.
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
max voltage deviation from average voltage
= 100 x
average voltage
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
Average Voltage =
132
COMPRESSOR OFM
(each) (each)
Max RLA LRA FLA
254 12.4 88.0 1.4
508 6.4 44.0 0.7
254 13.9 105 1.4
508 7.9 55.0 0.7
254 19.3 123.0 1.4
508 10.0 62.0 0.7
452 + 464 + 455
3
1371
=
3
= 457
IFM ELECTRIC HEAT*
FLA kW† FLA
— —
7.8/10.4 21.7/ 25.0
12.0/16.0 33.3/ 38.5
7.5
18.6/24.8 51.6/ 59.7 102.7/112.8
24.0/32.0 66.6/ 77.0 121.5/134.5
31.8/42.4 88.3/102.0 148.6/165.7
— —
13.9 16.7
16.5 19.8
3.4
27.8 33.4
33.0 39.7
41.7 50.2
— —
7.8/10.4 21.7/ 25.0
12.0/16.0 33.3/ 38.5
7.5
18.6/24.8 51.6/ 59.7 105.8/115.9
24.0/32.0 66.6/ 77.0 124.5/137.5
31.8/42.4 88.3/102.0 151.7/168.8
— —
13.9 16.7
16.5 19.8
3.4
27.8 33.4
33.0 39.7
41.7 50.2
— —
7.8/10.4 21.7/ 25.0
12.0/16.0 33.3/ 38.5
10.6
24.0/32.0 66.6/ 77.0 140.1/153.1
31.8/42.4 88.3/102.0 167.2/184.3
37.6/50.0 104.4/120.3 187.3/177.1
— —
16.5 19.8
27.8 33.4
4.8
33.0 39.7
41.7 50.2
50.0 60.1
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
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.
→
POWER EXHAUST ELECTRICAL DATA
POWER EXHAUST
PART NO.
CRPWREXH021A01
CRPWREXH022A01
CRPWREXH023A01
CRPWREXH028A01
CRPWREXH029A01
CRPWREXH030A01
N/A — Not available
NOTE: If a single power source is to be used, size wire to include power exhaust
MCA and MOCP.
Check MCA and MOCP when power exhaust is powered through the unit. Deter-
mine the new MCA including the power exhaust using the following formula:
MCA New = MCA unit only + MCA of Power Exhaust
For example, using a 50TFQ006---5 unit with MCA = 35.6 and MOCP = 40, with
CRPWREXH030A01 power exhaust.
MCA New = 35.6 amps + 1.6 amps = 37.2 amps
If the new MCA does not exceed the published MOCP, then MOCP would not
change. The MOCP in this example is 40 amps and the MCA New is below 40;
therefore the MOCP is acceptable. If "MCA New" is larger than the published
MOCP, raise the MOCP to the next larger size. In all cases, the MOCP for the
power exhaust should be 15 amps per NEC.
205
MINIMUM UNIT
POWER SUPPLY
MCA MOCP FLA
38.2/ 38.2 40/ 40** 40/ 40
65.3/ 69.5 70/ 70** 65/ 69
79.8/ 86.3 80/ 90 79/ 85
110/125 100/109
125/150 117/129
150/175 142/158
19.2 20** 20
40.1 45** 39
44.0 45** 43
61.0 70 59
68.8 70 66
82.0 90 78
41.3/ 41.3 45/ 45** 43/43
68.4/ 72.5 70/ 80** 68/72
82.9/ 89.4 90/ 90 82/88
110/125 103/112
125/150 120/132
175/175 145/161
22.3 25** 23
43.2 45** 43
47.0 50** 46
64.0 70 62
71.9 80 69
85.0 90 81
56.8/ 56.8 60/ 60** 60/ 60
84.0/ 88.1 90/ 90 85/ 89
98.5/105.0 100/110 98/104
150/175 136/148
175/200 161/177
200/200 180/198
28.7 30** 30
53.5 60** 53
70.5 80 69
78.3 80 76
91.5 100 88
88.8 100 99
7
457
= 1.53%
MCA MCA MCA
(230 v) (460 v) (575 v)
N/A 0.68 N/A
3.4 N/A 1.32
N/A 1.4 N/A
1.7 N/A 0.68
N/A 0.7 N/A
1.6 N/A 0.64
DISCONNECT
SIZE
LRA
242/242
264/267
275/281††
294/302††
309/319††
330/344††
121
138
141
155
161
171
276/276
298/301
309/315††
328/336††
343/353††
364/378††
143
160
163
177
183
193
337/337
358/362††
370/375††
403/414††
425/439††
441/457††
170
189
203
209
220††
230††
MOCP
(for separate
power source)
15
15
15
15
15
15