Original message
| edndale
 |  "Thermostat"
, posted Sat 12 Jun 07:34  
I am replaceing a manual white-rogers heat pump thermostat 1F58-77 with a honeywell digital thermostat CT3611R. It requires a "common wire" which I cannot tell if the old one has a common wire or not. The instructions on the honeywell have me hook the wires up to the same terminals as the white-rogers. I have the following wire scheme on the white rogers..B-Blue, W2-white, R-Red, G-Green, Y-Yellow. I have read your previous post on a a similar problem about with the common wire. I take that possibly the B could be my common wire. Should I hook that to my C/Common terminal on the new thermostat?
Eddie
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Replies:
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| edndale
| "Re(1):Thermostat" , posted Sat 12 Jun 15:50
If the 1f5877 has no common, then I cant use the new Honeywell?
The fan does run, but the airconditioning unit does not and have no display on the honeywell.
Eddie
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| xenos
Webmaster 
| "Re(1):Thermostat" , posted Sat 12 Jun 14:58
Actually the 1F58-77 does not have a common.
Xenos.
The best way to escape a problem is to solve it.
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| xenos
Webmaster
| "Re(1):Thermostat" , posted Sat 12 Jun 14:53
Since you did not list an O I would expect the B to be your changover valve.
Xenos.
The best way to escape a problem is to solve it.
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| | edndale
| "Re(2):Thermostat" , posted Sat 12 Jun 15:44
Since there is no common on the 1f5877, then I cant use the new thermostat? The fan does run, but no display on the Honeywell.
Eddie
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