 |
|
| Browse | Ask | Answer | Search | Join/Login |
|
|
||||
|
Wiring a replacement Honeywell Thermostat
I purchased a Honeywell Vision 5-1-1 Day programmable thermostat to replace a Lennox thermostat (51H4301). This is an all electric heat pump type unit (Lennox HP 21-511-5P). According to the Honeywell manual, if the old thermostat has wires W1, Y1 and W2, some system modification is required. Call your local heating and cooling contractor for assistance. My old thermostat does have W1 and Y1 (not W2). It also has a Y2 which is not mentioned in the directions for the heat pump style (Y2 is in the conventional details). Is this wiring something someone could help me with or should I do as the manual states and get a heating and cooling contractor?
Thanks Troy |
||||
|
||||
|
We have some good people here, but so far we are a little weak in HVAC. W1 and W2 are for 2 stage heating, and Y1 and Y2 are for 2 stage cooling. The question is not what the old thermostat had, but what the heat pump needs. The old thermostat may have had 2 stage functionality that wasn't used. The heat pump may also be capable of choosing stages. I have a 2 stage furnace, but it, not my thermostat chooses which stage. If you can figure out what the heat pump needs, you don't need a heating contractor. Usually they have a basic wiring diagram on them. You may even have been left a manual or installation guide somewhere on the unit. The manufacturer's website may have the info you need. It may be as simple as connecting the Y1 and W of the thermostat to the Y and W of the heat pump.
|
||||
| Question Tools | Search this Question |
Add your answer here.
Check out some similar questions!
I am having trouble figuring out the wiring for a new programmable thermostat installation. I moved into a barnd new house equipped with two Robertshaw Model 9400 Thermostats (one for each zone). I bought Honeywell RTH7500D programmable thermostats to replace them because I wanted programmable...
Someone gave me this digital thermostat which was used & has no instruction papers. I have a Goodman Heating & A/C self contained unit outside for a mobile home. The old thermostat was a 4 wire system with a green wire on the G terminal, red wire on the RC terminal, blue wire on the Y terminal, and...
Have a 5-2 programmable Honeywell thermostat - replacing my old mercury unit. Have a spilt-system Bryant heat pump. Brown - Br Green - G White - W1 Blue - B Yellow - Y Red - R Connected G, W1, Y and R (not B, not Br). Heat works fine. Just switched to cooling and I only get hot air. Any...
I have an American Standard heat pump model TWGO36H140B with aux Emergency heat and I would like to wire a Honeywell TH832OU1008 thermostat. The wires coming to my present thermostat are: Brown= not connected X= blue w2= white and pink r=red g= green o = orange y= yellow e= pink ...
I'm replacing an old honeywell thermostat with a new digital. The old one has the standard two wires - R and Wh, but then it has two C wires. I think they just provide power for the clock, and I'm wondering if I can just close off that circuit. The clock has two metal brush connections that...
View more questions Search
|
