Compatible Residential Thermostats ????
Does anyone know if there is a residential (sticks & bricks) comparable thermostat for RV's ?? I have the RV Comfort Air (Coleman-Mach) P/N 8530-345 - i need to replace a bad one (see other thread)...
Forum Discussion
Dutch_12078 wrote:msturtz wrote:
While a residential thermostat may "work" they are designed for 24V AC not 12V DC. According to Coleman tech support the use of a residential thermostat can damage the control circuits over time which would require replacement. The thermostats are no longer simple switches. They strongly discourage the practice of replacing the thermostat with a residential unit. All RV HVAC equipment control circuits are 12V DC.
The Honeywell RTH2300 digital thermostats I installed work just fine using the two AAA batteries inside the case. I replace them annually. The specifications include "Works with low volt heating/cooling systems including millivolt..."
The two AAA batteries only power the thermostat. The 12VDC control voltage comes from the AC unit itself through the use of a step-down transformer. I myself would only use a thermostat rated for 12VDC. Replacements are available; I have ordered them over the internet.
Ray
