2Gig external power

[mark_anderson_us]

Hi All

I'll start off by saying I know little about HVAC systems (but I do know a bit about electronics and know how to use a multi-meter - if that helps). I have a CT30 installed and working with a furnace (New Yorker CG60AWN) connected on RH and W. The user guide says:

The install guide says:

The CT30 can be externally powered with a power source rated from 12V to 24V, AC or DC, at 300ma or greater. If used, connect to the C and RH terminals (no polarity).

Is it a problem connecting AC or DC power to RH when that's used to turn on the furnace (I thought the furnace was activated by connecting RH to W)? If it's not a problem, should I choose Ac or DC?

Regards

Mark

[GaryDN]

I would go to the Radio Thermostat forum, there you can get help with hooking up c wire.

http://forums.radiothermostat.com/viewforum.php?f=12