Control Wiring For H/P Unit - Heat Controller RSGxxS-1D Series Installation, Operation & Maintenance Manual

TABLE 5: Wiring Gauge for H/P Systems.
Model(Btu/h)
Line Quantity
Outdoor Unit
Power Line
Line Diameter
(AWG )
Line Quantity
Outdoor-Indoor
Signal Line
Line Diameter
(AWG )
Line Quantity
Thermostat
Signal Line
Line Diameter
(AWG)
18000/24000 30000/36000
3 3
14 12
5 5
18 18
5
5
18 18
26
42000 48000/60000
3 3
12 10
5 5
18 18
5 5
18 18