Johnson Controls YORK YMSFXH018BAAK Series Installation Manual page 22

E L E C T R I C W I R I N G G A U G E
Wiring gauge for A/C systems
Model(Btu/h)
Power
Input Current Fuse
Indoor Unit Power
Line
Outdoor Unit Power
Lines
Line
Gauge
Outdoor -Indoor
Signal Line
Thermostat Signal
Line
NOTE: If indoor unit has auxiliary heating already installed and a different
auxiliary heating unit is required the indoor unit (A) and indoor line diameters
will be different.
Fig.10: Indoor Unit Wiring Diagram for Electric Heat.
Phase
Voltage/frequency
Indoor unit (A)
Line Quantity
Line Diameter(AWG)
Line Quantity
Line Diameter(AWG)
Line Quantity
Line Diameter(AWG)
Line Quantity
Line Diameter(AWG)
30/36
18/24 /42 48
Single
208/230, 60Hz
15A 15A 15A 15A
3 3 3
14 14 14
3 3 3
14 12 10
2 2 2
18 18 18
4 4 4
18 18 18
60
3
14
3
10
2
18
4
18
21