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Controls
Main Board - Front Cover
MAIN BOARD
The new Zoneline series uses a MAIN board that contains the microprocessor. It processes the information
input from the USER interface or wall thermostat, the thermistors, and fan motors feedback. It then activates
the associated relays for the selected cycle. The MAIN board also has a DC power supply to provide the
needed DC voltage to run the indoor and outdoor fan motors.
Personality is programmed into the board at the time of manufacture.
Service MAIN boards will have two “dip” switches to allow it to be set-up for the proper Zoneline model it will
be installed in.
USER INTERFACE
12 pin
Unused
CDC
REMOTE
THERMOSTAT
RJ-45
HEATER PERSONALITY
AC input
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