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P1 is used will be on Air Handlers when Digit 15 in the Model Number is D
J5
J5-1 connects to J8-2 by a trace in the circuit board.
J5-2 is current limited to 300ma, Tech Support recommends not using this terminal for anything at this
time. Use J10-1.
24 VAC to J5-4 closes J11-1 to 2 and is the fan interlock to allow heat to work.
24 VAC to J5-5 does absolutely nothing
24 VAC to J5-6 closes J11-3 to 4
J5-7 connects to J1-1 by a trace in the circuit board
J5-8 connects to J1-3 by a trace in the circuit board
J6 - Some of the wiring diagrams are wrong for J6.
The diagram should be, J6-1 OUT to Unit B, J6-2 OUT to Unit A, J6-3 24 VAC IN.
When 24 VAC is applied to J6-3, the K5 and K7 relay will close outputting 24 volts from J6-1 and 2.
P9 is used on Air Handlers when Digit 15 in the Model Number is 1
J11 is used on Air Handlers when Digit 15 in the Model Number is C
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