Original message
| DIYgal
 |  "Gas Pack + Heat Pump thermostat install"
, posted Thu 30 Oct 08:29  
I want to do a DIY replacement of a 9 yr old thermostat that is not very accurate.
I have a Heil Gas pack on 1st floor (electric A/C and gas furnace). On the second floor I have an electric heat pump.
I purchased the Honeywell RTH7500D 7-day programmable thermostat as the replacements for both the upstairs and downstairs. The package says it is heat pump compatible. (I'm hoping it's also the correct choice for a gas pack)
I've read in your forum the wiring may be tricky for installation on this model thermostat. Should I call a professional to have them installed instead of trying myself? The only electrical DIY experience I have is installing light fixtures and switches.
I called to quote the installation from our regular HVAC service and they said starts at $325 for the thermostat installs, may be higher after they actually come out. Does that seem like a reasonable price? Seems high to me. If high, what's a "normal" range for this service? (We're in the Southeast U.S., medium sized city)
A call to our electrician for a quote says he can do it, but its really a HVAC job.
Your recommendations?
THANKS!
---DIYgal
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Replies:
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| Houston204
|  "Re(1):Gas Pack + Heat Pump thermostat install"
, posted Thu 30 Oct 20:08:
Write down the existing terminal = color combination for each stat and post it here.
I will gladly assist you.
Be sure to remove power before removing any wires.
Good thermostat choice.
"Tip of the Day" Remember to remove power first.
[this message was edited by Houston204 on Thu 30 Oct 20:10] |
| | DIYGal
| "Re(2):Gas Pack + Heat Pump thermostat install" , posted Wed 12 Nov 10:19:
Sorry for the delay, I'm just getting started on this DIY project! Thanks for your help!
I might be able to figure it out from the instruction booklet, but have a couple of questions...
1) Would the Heil Gas pack on 1st floor (electric A/C and gas furnace) be considered a Single stage heat+cool or Multistage heat+cool ?
2) instructions say thermostat works on 24v or 750mV systems, will not work on 120/240 volt systems. What are the chances that I have a 120/240 volt system? Don;t want to blow anything up.
THANKS!
---DIYgal
[this message was edited by DIYGal on Wed 12 Nov 10:21] |
| | diygal
| "Re(2):Gas Pack + Heat Pump thermostat install" , posted Fri 31 Oct 15:44
Great! Thanks - will post soon the wire combos
THANKS!
---DIYgal
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