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Thread: steam humidifier
11-03-2012, 02:53 PM #1New Guest
- Join Date
- Nov 2012
- nashville TN
I have just put a steam humidifier in a house and am having a new problem that I have not seen before. When the humidifier calls for the fan to come on, the condenser contactor pulls in and the condenser runs. It is a rheem 2 ton split heat pump and the air handler has a x13 blower motor. I ran my 2 wire fan switch from my humidifier to the air handler and I have one wire hooked up to my 24v hot and 1 wire to my G terminal. I am wondering if my voltage in backfeeding through my thermostat and sending voltage to my contactor. I have put in several skuttle steam humidifiers without having this problem any help would be great. Also I am new to this site and if I have broken any of the rules please let me know.
11-03-2012, 04:47 PM #2
Hopefully the original poster found this message here where it belongs.
You can't just energized G without isolating the thermostat. Check your installation wiring diagram to see how to do that.
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11-03-2012, 05:09 PM #3Professional Member
- Join Date
- Sep 2012
- Ottawa, Canada
Wait till you have to clean them and it will be often. I see a lot of rusted ductwork too.
11-04-2012, 09:21 PM #4
yes. you are backfeeding thru the thermostat.
wait for after a year and the homeowner is pissed because it breaks and you charge them to fix it.