Ask Experts Questions for FREE Help !
Ask
    raven25's Avatar
    raven25 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 19, 2008, 03:52 AM
    Honeywell Thermostat RTH6300B for a Heatpump
    Question: When installing the new thermostat I found that my new wire designations do not match up with my old thermostat's wire designations. The Honeywell installation guide provide less common wire designations but I still can't match them. My old Thermostat (Lennox) has Y,M,F,V and R but the new thermostat has G,W O/B, Y, R, and Rc. I believe I have some of the old designations hooked up correctly (F-G, V-R, R-Rc) but now sure where to hook up the Y and M. The Honeywell guide provides no insight what to do with the M wire.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Nov 19, 2008, 04:17 AM
    Quote Originally Posted by raven25 View Post
    Question: When installing the new thermostat I found that my new wire designations do not match up with my old thermostat's wire designations. The Honeywell installation guide provide less common wire designations but I still can't match them. My old Thermostat (Lennox) has Y,M,F,V and R but the new thermostat has G,W O/B, Y, R, and Rc. I believe I have some of the old designations hooked up correctly (F-G, V-R, R-Rc) but now sure where to hook up the Y and M. The Honeywell guide provides no insight what to do with the M wire.

    Look under Lennox on the attached diagram.
    Attached Images
  1. File Type: pdf heat pump wiring.pdf (13.3 KB, 137 views)
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

RTH6300B Honeywell Thermostat [ 8 Answers ]

I recently installed the RTH6300B programmable thermostat. The a/c worked fine after installation, but I am now trying to get my gas furnace fired up and am having a problem with the pilot light staying lit on the furnace. I'm wondering if I have installed the thermostat improperly so that it...

Thermostat replacement with honeywell rth6300b [ 1 Answers ]

I have a trane weatehrtron - 7 wires from the wall and cannot find the right connection to the new honeywell rth6300b. I tried the wiring wizard and found I have 8 wired coming out of the wall and no place to hook them up... I end with the B, T , O and X2 left without a connection - help anyone?

Problem with New Honeywell RTH6300B Thermostat [ 5 Answers ]

We have a Frigidaire model B3BM-024K-A HVAC system. It is all electric. A few days ago, my husband replaced the old thermostat with a Honeywell RTH6300B programmable one. My husband wired it according to the instruction. It has a problem: the heat will not switch off automatically when the...

Honeywell RTH6300B Thermostat setup [ 1 Answers ]

I am trying to install a Honeywell RTH6300B to replace a Honeywell 3-wire thermostat. The wiring on the old thermostat is: Red wire – R terminal White wire – Y terminal Green wire – W terminal There are no other wires. The system is an oil burner with hot water baseboard heating. There...

Honeywell Programmable Thermostat RTH6300B [ 2 Answers ]

Since I live in Canada I want a programmable thermostat that uses celsius. Do you know if this model can be switched from Fahrenheit to Celsius? IF so how is this done? I've not opened the package since I wanted this anwer first. Thanks for your help.

View more questions Search