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Section 11. Electrical - Low Voltage
11.1 Low Voltage Maximum Wire Length
Table 11.1 defines the maximum total length of low
voltage wiring from the outdoor unit, to the indoor
unit, and to the thermostat.
Table 11.1
24 VOLTS
WIRE SIZE MAX. WIRE LENGTH
18 AWG 150 Ft.
16 AWG 225 Ft.
14 AWG 300 Ft.
11.2 Low Voltage Hook-up Diagrams
Field provided bushing or strain relief is required at
the low voltage wire entry point.
Access
Panel
INDOOR UNIT
OUTDOOR UNIT
Control Wiring for A/C Systems.