One of my original PSG Signature thermostats was recently replaced with a RVComfort-PHP thermostat model 3536A336 purchased from Newell. I have made a wiring diagram showing how to connect the old to the new attached as a .jpg. Dwight with Newell helped with this.
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2001 Newell #579
tow a 2011 Honda Odyssey
1935 Mercedes 500K replica