I have a Reznor garage heater that I need to hook up a thermostat to.
I got a heat-only Honeywell thermostat which has connections for R,W,
and Y. The heater has R,G,W1 and W2. How do I hhok it up, or do I
need a fancier thermostat? All the manual says is to use a 24V
thermostat, which this is. Thanks.
Well it's like this...
#1 you have the heater's installation instructions
#2 you have the thermostat's installation instructions
Having this two documents, you can't hook-up a simple control. So what makes
you think you could install the heater properly and to code?
Now, before you get all pissy and say it's not that hard and it's not rocket
science. Who's going to check and adjust the gas pressure?
Who's going to do the electrical? Who's going to inspect the flu termination
to insure it's safe?
Some things should be left to a trained professional.
You need to call Reznor. They evidentially did not give you the
"Heat-Only" kit. I believe the kit number is a P104-7010.
This will give you the conversion board, wiring diagram and wiring
harness you need to hook it up to a standard or programmable
Here's what I figured out from other sources and experimentation. The
simple thermostat I bought simply connects R to W when the temp is
below setting and R to Y otherwise. The W2 connection on my heater is
not connected to anything, it's there for an optional two stage setup
that I didn't buy.
On the heater, connect R to W1 to make heat, connect R to G to turn on
the fan with no heat.
I don't care about the fan without heat option right now, so I connect
R thermostat to R heater and W thermostat to W1 heater and leave
everything else no-connect. Works fine.
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