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28
IFM
COMP1
12
1
/
BLK
12
3
/
BL
U
12
2
/
YE
L
11
8
/
BLK
12
0
/
BL
U
11
9
/
YE
L
C1
12
5
/
BLK
12
6
/
BLK
C
H
1
TB1
CL
O
1-Loo
p
10
3
/
BLK
10
4
/
YE
L
10
5
/
BL
U
10
6
/
BLK
10
7
/
YE
L
10
8
/
BL
U
10
9
/
GR
N
11
1
/
BLK
11
2
/
YE
L
11
3
/
BL
U
2
1
3
T2L2
T1L1
T3L3
15
0
/
BLK
15
1
/
YE
L
50
1
/
RED
50
0
/
BR
N
IF
C
/
IFR
DIS
C
1
L2
L3
L1
GN
D
10
0
/
BLK
10
1
/
BLK
10
2
/
BLK T3L3
T2L2
T1L1
11
4
BLK
11
5
/
YE
L
11
6
/
BL
U
11
7
/
GR
N
OFM
2
1
3
GND
12
4
/
GR
N
2
1
3
COMP2
13
0
/
BLK
13
2
/
BL
U
13
1
/
YE
L
12
7
/
BLK
12
9
/
BL
U
12
8
/
YE
L
C2
13
4
/
BLK
13
5
/
BLK
C
H
2
CL
O
2-Loo
p
T2L2
T1L1
T3L3
13
3
/
GR
N
2
1
3
15
2
/
BLK
15
3
/
YE
L
56
1
/
RED
56
0
/
BR
N
TB3
OF
C
/
OFR
T3L3
T2L2
T1L1
20
8
/
23
0
V
3
60 Hz
TRA
N
1
2
4
V
Class 2
20
8
V
24
0
V
COM
TRA
N
2
2
4
V
Class 2
20
8
V
24
0
V
COM
~
~
TO LOW
VOLTAGE
DIAGRAM
TO LOW
VOLTAGE
DIAGRAM
LEGEND
C—Compressor Contactor
CH — Crankcase Heater
CLO — Compressor Lockout
COMP — Compressor
DISC — Disconnect
GND — Ground
IFC — Indoor-Fan Contactor
IFM — Indoor-Fan Motor
IFR — Indoor-Fan Relay
OFC — Outdoor-Fan Contactor
OFM — Outdoor-Fan Motor
OFR — Outdoor-Fan Relay
TB — Terminal Block
TRAN — Transformer
Terminal Block Connection
Marked Terminal
Unmarked Terminal
Splice
Factory Wiring
Field Power Wiring
NOTES:
1. Fan motors are inherently thermally protected.
2. Three-phase motors are protected under primary
single phase conditions.
3. Use conductors suitable for at least 194 F (90 C)
when replacing factory wiring.
4. Use copper conductors only.
5. Wiring for field power supply must be rated at 165 F
(75 C) minimum.
LINE VOLTAGE DIAGRAM — 50XCA012-024, 208/230-3-60 UNITS SHOWN
a50-8504
Typical wiring schematic