I am replacing a Janitrol HPT 18-60 with a Honeywell RTH7500. The Janitrol has 7 wires - C, E, W2, Y, G, R, and O. The Honeywell does not have a terminal for the W2 wire. Where does it go?

Here is your manual for the install

http://customer.honeywell.com/TechLit/pdf/PackedLit/69-2221EF.pdf

I suggest you read it completely before you start the install. All the info you need is contained in there. Pay close attention to the wiring pages.

here is your manual for the install

http://customer.honeywell.com/TechLit/pdf/PackedLit/69-2221EF.pdf

I suggest you read it completely before you start the install. All the info you need is contained in there. Pay close attention to the wiring pages.

Thanks, I think I complicated the install by reading things into it. Page 23 shows that the W2 wire goes to the AUX terminal. Thanks again.:)

That is why I mentioned the wiring pages. It is so much easier for a person who have the install manual than it is for me trying to explain what is in it. Glad you got it going.

Hello, I have a similar situation - A Janitrol HPT1840 being replaced by a Honeywell RTH7500. However, I have two wires twisted together - a white and a brown. I also have nothing on E. I will enclose a grainy picture if it helps.

HVAC100, I have read several of your responses so far, I hope you have a moment to give me a little advice. I also just posted a question regarding missing the first stage / Auxiliary heat function on this system. Thank you for your time.

Mike