Johnson Controls YORK YMSFXH018BAAK Series Installation Manual page 23

Wiring gauge for H/P systems
Lines
Gauge
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.
These units must be wired and installed in accordance with all National and
Local Safety Codes.
22
Model(Btu/h)
Power
Input Current Fuse
Indoor Unit Power
Line
Outdoor Unit Power
Line
Outdoor -Indoor
Signal Line
Thermostat Signal
Line
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
208/230V, 60Hz
15A 15A 15A
3 3 3
14 14 14
3 3 3
14 12 10
4 4 4
18 18 18
5 5 5
18 18 18
60
15A
3
14
3
10
4
18
5
18