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