01-08-2023 05:42 PM
I recently purchased a new home that came with a Friedrich Zoneaire heating/cooling wall unit in one of the rooms. I looked at the front of the unit (model PZE09K3SB-A) and it appears I may be able to wire it to my Nest thermostat from my old apartment, I'm attaching some pictures of the unit, does anyone know if this is possible if I buy a wire harness?
Thanks!
Answered! Go to the Recommended Answer.
01-08-2023 07:50 PM
Looks like it will work but you will only have one fan speed you have to choose hi or lo when you connect the G wire to the unit.
You don't need a special wire harness you just use 5 conductor thermostat cable from Home depot or Lowes and the green terminal strip has small screws that clamp the wires tight.
R to RC
C to C
B to O/B
Y to Y
W to W1
G to GL or GH fan speed
01-08-2023 07:50 PM
Looks like it will work but you will only have one fan speed you have to choose hi or lo when you connect the G wire to the unit.
You don't need a special wire harness you just use 5 conductor thermostat cable from Home depot or Lowes and the green terminal strip has small screws that clamp the wires tight.
R to RC
C to C
B to O/B
Y to Y
W to W1
G to GL or GH fan speed
01-12-2023 09:20 AM
Hello folks,
I wanted to ensure that everything was covered here.
Thanks for helping here, @Houptee.
@SOCAL_CELT, I hope you've got the answer you're looking for. How's it going? Have you tried installing your Nest Thermostat? If you're still in need of assistance, feel free to let us know.
Regards,
Mark
01-13-2023 12:59 PM
I wired the thermostat per the instructions above and I will try to attach pictures - the fan operation works but it blows cold air (AC) rather than heat when it gets below the thermostat heat setting. Any ideas why?
01-13-2023 01:00 PM
01-13-2023 01:07 PM
You can go into the Nest settings on the app and change the output of the OB wire to the other setting.
It has two choices, if it energizes OB in heat or cooling.
Read this how to change the O/B settings
https://support.google.com/googlenest/answer/9257086?hl=en#zippy=%2Cchange-the-ob-wire-settings
01-13-2023 01:12 PM
Thank you! I'll make that update and should be all set.
01-16-2023 02:39 PM
Hi folks,
@Houptee, thanks for the help!
@SOCAL_CELT, how's it going with your Nest Thermostat? Still need our help?
Thanks,
Edward
01-16-2023 03:33 PM
All set, I followed @Houptee's instructions and it works like a charm. This is a great forum, thanks for all the help!!
01-16-2023 05:57 PM
HI SOCAL_CELT,
Thanks for the update. I'm glad to hear that it's working fine. I will be locking this thread in 24 hours. Please feel free to create a new thread should you have some more questions or concerns in the near future and we'll be more than glad to help.
Thanks,
Edward