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Snomas's avatar
Snomas
Explorer
May 25, 2013

How do you check zone 1 a/c to zone 2 a/c j11 connection

In zone 1 my front AC unit I have replaced the corroded thermostat 4 wire J11 plugs and connection from zone 1 AC to zone 2 AC. To be sure they are correct should there be 12 volts coming out towards ...
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Altern's avatar
Altern
Explorer
May 25, 2013
In the HVAC trade low voltage wire colors are fairly consistent - not so much with RV thermostat wiring.

But normally red wire is power
Yellow wire = compressor
Green wire = fan
Blk/Blu = common
White = heat
Orange = heat pump reversing valve

YMMV

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