Can I replace 220v mechanical thermostat with 110 v digital one?
Thursday, March 11th, 2010 at
3:02 am
I want to replace my mech. thermostat to a digital one. I live in Bangkok and the current is 220. Can i use a digital thermostat made in USA for using with 110v? Im looking at Honeywell RTH 221B. Please Help.
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No. Your mechanical thermostat, if it actually deals with 220 volts, switches current to heating coils, and you have these alternatives:
- Replace it with a similar device.
- Install a relay to control the 220 volts, and a 24 volt transformer and electronic theromstat to control it.
A local dealer in heating supplies should be able to give details.
no anything made in the us is on a 60 hertz not really compatible plus 110 requires a neutral and everything over there is only 220v no neutral
NO. Electronics are very voltage sensitive. It will not work. I’m sure that honeywell will make one that is 220V.