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CONTROL BOARD PIN DEFINITIONS
CONNECTOR
PIN
INPUT OUTPUT
FUNCTION
J9
1
VAC
Switched L1 voltage to the defrost circuit - 120 VAC. A timer (main
control software), counts how long this circuit is energized and
uses this information to determine if the next defrost cycle is
adaptive or nonadaptive.
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
PIN
INPUT OUTPUT
FUNCTION
J11
1
VAC
Constant L1 voltage to control board circuits - 120 VAC input
potential for switched L1 terminals.
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
PIN
INPUT OUTPUT
FUNCTION
J15
1
VDC
Output voltage to the compressor inverter - 4 to 6 VDC from J15
pin 1 to J15 pin 2. (Only used on inverter compressor models.)
J15
2
VDC
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
PIN
INPUT OUTPUT
FUNCTION
J12
1
VAC
Switched L1 voltage to the duct heater - 120 VAC.
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