GEAppliances AZ75E09DAC, Technical Service Manual

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Remote Thermostat Control
The unit is controlled by an externally mounted, remote thermostat.
The Zoneline thermostat connections provide 24 VAC only. If using a digital/electronic wall thermostat, it
must be set to the 24 VAC setting. Refer to the thermostat installation instructions for details.
Note: Some thermostats can be programmed to energize the reversing valve in heating mode or cool
mode. If the thermostat is not programmed correctly, the unit will heat when the thermostat is set to
cool and cool when the thermostat is set to heat. Refer to the instructions provided with the thermostat
for thermostat programming procedures. Also refer to the Reversing Valve section of the Components
chapter for more information.
Central Desk Control (CDC)
Red–24 V AC only
Green–Low Speed Fan
Green–High Speed Fan
Black–Reversing Valve
Yellow–Compressor
White–Heater
Common–Ground
Red - 24 VAC Only
Green - Low Fan Speed
Green - High Fan Speed
Unused
Yellow - Cool Signal
White - Heat Signal
Common - Ground
MAIN
BOARD
13
14
15
11
10
9
12
24 V
FAN (L)
FAN (H)
COOL
HEAT
COM
CLASS 2 REMO
TE
THERMOST
A
T
GEA01248