Carrier 50CD/CH User Manual
Page 8
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WITHOUT ELECTRIC HEAT
UNIT CONTROL BOX
WITH
ELECTRIC
HEAT
SINGLE POINT BOX
C — Contactor
Comp — Compressor
Gn*d*^ — Equipment Ground
. Factory Wiring
. Field Power Wiring
. Field Splice
Fu
TB
— Fuse
— Terminal Block
Fig. 11 — Field Power Wiring Connections
Table 2 — Electrical Data
50CD/CH008
NOMINAL
V-PH-HZ
VOLTAGE
RANGE
COMPR
OFM
IFM
ELECTRIC HEATERS
POWER SUPPLY
50CD008
50CH008
50CD008
50CH008
Kw
FLA
Kw
FLA
Min Ckt
j
MOCP
Arr
Min Ckt
j
MOCP
)ps
Min
Max
RLA
LRA
FLA
Hp
FLA
208/230-3-60
187
254
32
5
183
29
1
80
—
—
55/55
60
/
60
*
55/55
60
/
60
*
9
3
20-23
93
20-23
55/55
60/60
55/55
60/60
186
40-46
158
33-38
60/70
60/70
55/60
60/60
28
1
59-68
31
5
68-76
85/95
80/90
95/105
90/100
460-3-60
414
508
15
2
91
1
1
5
1
2
9
—
—
25
35
*
25
35
*
9
7
11
7
97
11
7
25
35
25
35
160
193
160
19
3
30
35
30
35
194
23
4
31
5
37
9
40
35
55
45
29
6
35
7
50
45
1
FLA
— Full Load Amps
Hp
— Horsepower
IFM
— Indoor Fan Motor
LRA
— Locked Rotor Amps
MOCP — Maximum Overcurrent Protection
OFM — Outdoor Fan Motor
RLA — Rated Load Amps
‘Fuse only
Example; Supply voltage is 460-3-60.
ABC AB = 452 volts
BC = 464 volts
AC = 455 volts
Average Voltage
452 + 464 + 455
1371
3
= 457
Determine maximum deviation from average
voltage:
(AB) 457 - 452 = 5 volts
(BC) 464 - 457 = 7 volts
(AC) 457 - 455 = 2 volts
Maximum deviation is 7 volts
Determine % voltage unbalance:
% Voltage Unbalance = 100 x
7
457
= 1.53%
This amount of phase unbalance is satisfactory
as it is below the maximum allowable 2%.
t