Carrier 50HJQ004-016 Product Data page 125

ELECTRICAL DATA — 50HJQ (CONT)
50HJQ004-012 — STANDARD MOTOR UNITS WITH ELECTRICAL CONVENIENCE 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
— Maximum Overcurrent Protection
MOCP
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
452 + 464 + 455
Average Voltage =
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
3
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/ 59.7 107.5/117.6
24.0/32.0 66.6/ 77.0 126.3/139.3
31.8/42.4 88.3/102.0 153.4/170.5
— —
13.9 16.7
16.5 19.8
3.4
27.8 33.4
33.0 39.7
41.7 50.2
— — 46.1/ 46.1
7.8/10.4 21.7/ 25.0 73.2/ 77.3
12.0/16.0 33.3/ 38.5 87.7/ 94.2
7.5 7 5
18.6/24.8 51.6/ 59.7 110.6/120.7
24.0/32.0 66.6/ 77.0 129.3/142.3
31.8/42.4 88.3/102.0 156.5/173.6
— —
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/ 38.5 103.3/109.8
10.6
24.0/32.0 66.6/ 77.0 144.9/157.9
31.8/42.4 88.3/102.0 172.0/189.1
37.6/50.0 104.4/120.3 192.1/181.9
— —
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 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.
125
MINIMUM UNIT
POWER SUPPLY
MCA MOCP** FLA
45/ 45
43.0/ 43.0 46/ 46
80/ 80
70.1/ 74.3 71/ 75
90/100
84.6/ 91.1 84/ 90
110/125 105/115
122/134
150/150
147/163
175/175
25
21.4 23
45
42.3 42
50
46.1 46
63.1 70 61
71.0 68
80
84.1 80
90
50/ 50 49/ 49
80/ 80 74/ 78
90/100 87/ 93
125/125 108/118
150/150 126/138
175/175 151/166
24.5 25 26
45.3 50 45
49.2 50 49
66.2 70 64
74.1 80 72
87.2 90 84
70/ 70
61.6/ 61.6 65/ 65
90/100
88.8/ 92.9 90/ 94
110/110
104/110
150/175 142/154
167/183
175/200
185/204
200/200
35
30.9 33
60
55.6 55
80
72.6 71
80.5 90 78
93.6 90
100
91.0 102
100
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
247/247
269/272
280/285††
298/307††
313/324††
335/349††
123
140
143
157
163
174
281/281
303/306
314/319††
332/341††
347/358††
369/383††
145
162
165
179
185
196
341/341
363/366††
375/380††
408/418††
430/443††
446/462††
172
191
205
211
222††
232††
MOCP
separate
power
source only)
15
15
15
15
15
15