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49-5000416 Rev. 0 9
Thermostat Installation
Wire Color Terminal Letter Terminal Connection
Black C Common
Red R 24V
Yellow Y Compressor
White W Heat
Orange O or B Reversing Valve
Green GH Fan High
Purple GL Fan Low
Brown AUX Occupancy
NOTE: If the PTAC unit has only one (1) fan speed,
connect both fan control wires – Green and Purple –
to the fan terminal (G).
Wiring Table – 24V AC
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