Thermostat wiring problem

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Old 02-16-07, 07:25 AM
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Question Thermostat wiring problem

I would like to replace my old programmable thermostat, which is dying, with a new one. I have the new thermostat, but the problem I have is that the terminals on the old thermostat are not labeled. The old thermostat is a Valera/Enerstat Model K3-W. Does anyone know the terminal layout for the K3?
 
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Old 02-18-07, 07:12 PM
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You may be able to use wire color to determine placement. Otherwise you will have to go to the air handling unit and see what the terminal designation is at that end.

Ken
 
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Old 02-19-07, 11:59 AM
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Wink

Might check and see if you have a wire schematic on the inside of the blower door there.
 
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Old 02-21-07, 04:08 PM
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Originally Posted by puccini View Post
I would like to replace my old programmable thermostat, which is dying, with a new one. I have the new thermostat, but the problem I have is that the terminals on the old thermostat are not labeled. The old thermostat is a Valera/Enerstat Model K3-W. Does anyone know the terminal layout for the K3?
Are you sure about this? Not even letters W, R, Y....? Have any of you other guys ever ran into a stat that is not labeled? How did the contractor know where to hook up the wires?
 
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