Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Heating & Air Conditioning (https://www.askmehelpdesk.com/forumdisplay.php?f=150)
-   -   Honeywell rth221b (https://www.askmehelpdesk.com/showthread.php?t=404968)

  • Oct 11, 2009, 06:21 PM
    momi7676
    Honeywell rth221b
    "im replacing the old thermostat wich have only 2 wires red and white and no other marking.where do I plag the wires with my new honeywell thermostat RTH221B WICH HAVE 5 option for connection?
  • Oct 11, 2009, 06:35 PM
    hvac1000
    Use W=White and R (it might be marked RH)=Red this is for heat only

  • All times are GMT -7. The time now is 03:34 AM.