3 ms·
Wire them both up so that your cheap thermostat provides hard upper and lower limits. Your HVAC doesn't care where it gets a 24V signal. An open relay won't mi
by Scoundreller 2y ago
Wire them both up so that your cheap thermostat provides hard upper and lower limits.
Your HVAC doesn't care where it gets a 24V signal. An open relay won't mind being energized from the "wrong" direction. AFAIK, thermostats won't tattle.