New Thermostat - http://www.hvacmechanic.com/ Forums
Original message
| dmmh487
 |  "New Thermostat"
, posted Sat 11 Oct 21:13  
I am trying to replace a Totaline P274-0100 thermostat with a Honeywell RTH230B. The Totaline has the following letters next to wires "R", "Y/YZ", "G", "C", "W/W1". The Honeywell has "Rh", "Rc", "W", "Y", "G". I am confident attaching "G" to "G". Can anyone help me with which remaining letters go together?
Thank you for the help.
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Replies:
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| jmar
| "Re(1):New Thermostat" , posted Sat 11 Oct 22:53
hook w to w, g to g, y to y r to rh and put a jumper between rh and rc should be on tstat already check directions to verify. common (C) is no longer used, the batteries take the place of the c connection.
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