Carrier 50HJQ004-016 Product Data page 123

ELECTRICAL DATA — 50HJQ (CONT)
50HJQ004-012 STANDARD MOTOR UNITS WITHOUT ELECTRICAL CONVENIENT OUTLET (CONT)
VOLTAGE
NOMINAL
UNIT
RANGE
VOLTAGE
50HJQ 50HJQ
(V-Ph-Hz) (V-Ph-Hz)
Min
208/230-3-60 187
008 008
1
(7 / Tons)
2
460-3-60 414
208/230-3-60 208/230 3 60 187 187
009 009
1 1
(8 (8 / / Tons) Tons)
2 2
460-3-60 460 3 60 414 414
208/230-3-60 187
012 012
(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 and 480 v.
If power distribution voltage to unit varies from rated heater voltage, heat-
er 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 pro-
tective 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 percent 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
COMPRESSOR OFM
(each) (each)
Max RLA LRA FLA
254 12.4 88.0 1.4
508 6.4 44.0 0.7
254 254 13 9 13.9 105 105 1 4 1.4
508 508 7.9 7 9 55 0 55.0 0 7 0.7
254 19.3 123.0 1.4
508 10.0 62.0 0.7
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 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 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
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
This amount of phase imbalance is satisfactory as it is below the maxi-
mum allowable 2%.
IMPORTANT:If the supply voltage phase imbalance is more
than 2%, contact your local electrical utility company
immediately.
POWER EXHAUST ELECTRICAL DATA
POWER EXHAUST
PART NO.
CRPWREXH030A01
CRPWREXH021A01
CRPWREXH022A01
CRPWREXH023A01
CRPWREXH028A01
CRPWREXH029A01
* Single or three phase
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 pow-
er exhaust should be 15 amps per NEC.
123
MINIMUM UNIT
POWER SUPPLY
MCA MOCP** FLA
40/ 40
38.2/ 38.2 40/ 40
70/ 70
65.3/ 69.5 65/ 69
80/ 90
79.8/ 86.3 79/ 85
110/125
100/109
117/129
125/150
142/158
150/175
20
19.2 20
45
40.1 39
45
44.0 43
61.0 70 59
68.8 66
70
82.0 78
90
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
60/ 60
56.8/ 56.8 60/ 60
90/ 90
84.0/ 88.1 85/ 89
100/110
98.5/105.0 98/104
150/175 136/148
161/177
175/200
180/198
200/200
30
28.7 30
60
53.5 53
80
70.5 69
78.3 80 76
91.5 88
100
88.8 99
100
452 + 464 + 455
3
1371
=
3
= 457
7
457
= 1.53%
APPLICATION MCA MCA MCA
USAGE (230v) (460v) (575v)
1.6
004--- 007* N/A 0.64
0.68 N/A
004--- 007* N/A
3.4
008--- 014* N/A 1.32
N/A
008--- 014* 1.4 N/A
1.7
ALL N/A 0.68
N/A
ALL 0.7 N/A
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
separate
power
source only)
15
15
15
15
15
15