Carrier 50HJQ004-016 Product Data page 127

ELECTRICAL DATA — 50HJQ (CONT)
50HJQ004-012 — HIGH-STATIC MOTOR UNITS WITHOUT ELECTRICAL CONVENIENCE OUTLET (CONT)
VOLTAGE
NOMINAL
UNIT
RANGE
VOLTAGE
50HJQ 50HJQ
(V-Ph-Hz) (V-Ph-Hz)
Min
208/230-3-60 187
008
1 1
(7 (7 / / Tons) Tons)
2
460-3-60 414
208/230 3 60 208/230-3-60 187 187
009 009
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
10.6
18.6/24.8 51.6/ 59.7 105.8/115.9
24.0/32.0 66.6/ 77.0 124.6/137.6
31.8/42.4 88.3/102.0 151.7/168.8
— —
13.9 16.7
16.5 19.8
4.8
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 10.6
18.6/24.8 51.6/ 59.7 108.9/119.0
24.0/32.0 66.6/ 77.0 127.6/140.6
31.8/42.4 88.3/102.0 154.8/171.9
— —
13.9 16.7
16.5 19.8
4 8 4.8
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/ 38.5 102.9/109.4
15.0
24.0/32.0 66.6/ 77.0 144.5/157.5
31.8/42.4 88.3/102.0 171.6/188.7
37.5/50.0 104.4/120.3 191.7/181.5
— —
16.5 19.8
27.8 33.4
7.4
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.
127
MINIMUM UNIT
POWER SUPPLY
MCA MOCP** FLA
45/ 45
41.3/ 41.3 44/ 44
70/ 80
68.4/ 72.6 69/ 73
90/ 90
82.9/ 89.4 82/ 88
110/125 103/113
121/132
125/150
145/169
175/175
20.6 25 22
41.5 45 41
45.4 50 45
62.4 70 60
70.2 80 68
83.4 90 80
44.4/ 44.4 45/ 45 47/ 47
71.5/ 75.6 80/ 80 72/ 76
86.0/ 92.5 90/100 85/ 91
110/125 106/116
150/150 124/136
175/175 149/164
23.7 25 25
44.6 45 44
48.4 50 48
65.4 70 63
73.3 80 71
86.4 90 83
61.2/ 61.2 70/ 70 65/ 65
88.4/ 92.5 90/100 90/ 94
110/110 103/109
150/175 141/153
175/200 166/182
200/200 185/203
35
31.3 33
60
56.1 56
80
73.1 72
80.9 90 79
94.1 91
100
96.4 102
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
267/267
288/292
300/305††
318/336††
333/344††
355/369††
134
150
153
167
173
184
301/301
322/326
334/339††
352/360††
367/378††
389/403††
156
172
175
189
195
206
360/360
382/385††
393/399††
427/437††
448/462††
464/480††
181
201
215
221
231††
241††
MOCP
separate
power
source only)
15
15
15
15
15
15