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This humidistat will not interface with the furnace wired as communicating. This control is different as it uses 24v input from equipment and 24v signal from furnace on heat cycle..BUT..you are wired for data and not 24v.
You will have to use a standard 2 wire humidistat with a sail switch..so when blower kicks on it activates 24v for humidifier..OR
You can use 24v from R or a transformer to HUM in in board and then HUM out to humidistat.
Either way it will not take this humidistat
and this does not mean the HUM 120v terminal...you can also use that with a transformer...but once again not with this humidistat
you had it wired just for humidifier but not for when furnace was running. If you use the HUM in and HUM out...OR...wire a 24v transformer to HUM 120v....then the furnace turns on the humidifier..
You will need to wire with a 2 wire humidistat as I mentioned. And if you need any help or for me to make a drawing just let me know
you likely have a fan powered humidifier which means it has 120v supply with a plug?
but has to be activated with 24v?
the 2 amp is for the motor/blower which is run off the plug..not the board..the 1 amp board output is not a concern..also you already have a 24v in the humidifier. All you would need to do is runa wire from humiidifier to HUMin...then from HUMout run to humidistat..and then from humidistat go back yo remaining humidifier wire. This way the furnace is always running during a humidity call
you do not need any power other than the plug...all we need is something to connect the low voltage wires....
you have 2 wires hanging loose at humidifier. They already come from a transformer inside the humidifier.
Run a wire from one of those loose wires to HUMin...then from humout runa wire to a humidistat. Then from remaining lug in humidistat back to humidifier remaining wire. I can draw diagram if you like
humin and out is nothing but a bridge..this closes during heat cycle.
One of the 2 small wires already has 24v...we do not need a transformer...it is inside the humidifier.
When that 24 returns to the other wire it kicks on blower and solenoid. If you simply touched the 2 small wires direct it would kick on the humidifier (if plugged in)....all we are doing is making the 24v go through a humidistat and furnace relay before coming back.
give me a bit and I will send drawing
Basic wiring for 700 series and using HUM in and out...NOT hum 120v terminal
do me a favor...plug in humidifier and touch the 2 brown wires direct together...tell me if blower kicks on. I think you are referring to the transformer that only feeds the 60 humidistat R and C as the humidistat needs a separate 24v to run it.
look at this link...it is the circuit board with transformer inside the 700
and here are 700 parts
Parts for 700
Ok, well I have installed plenty 700s and even have one in my own home. They have all had a transformer built onto a circuit board.
You must have a different variation or something I have never seen...every powered humidifier I have done has the 24v inside aswell as all the 700 parts diagrams.
I will have to opt out as I do not understand what you have. The transformer supplied is generally just to power R and C on the humidistat...not to run humidifier.
I wish you the best