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Posted by Al Moran on September 18, 2006, 9:33 pm
wrote:
>>I have a gas fired forced hot air heating system and I replaced the old
>>Honeywell Thermostat with a Heat Only Honeywell Thermostat from Home
>>Depot because the Heating System didn't kick on when the old beat-up
>>one was turned on. The Directions of the new Thermostat say for two
>>wire systems connect one wire to the R terminal and one to the W
>>terminal. I did it and the thermostat doesn't kick the system on. I
>>tried swapping the wires and the thermostat still doesn't work.
>>I touched the two wires coming out of the wall (There is only one black
>>one and one white one) to determine whether the gas burner comes on and
>>it does...
>>Any ideas on what could be wrong? Is it the thermostat from Home
>>Depot? It says 24Volt on it.
>You need an 18 volt thermostat, not 24 volt (+/- 2 volts)
>You're lucky you didnt fry the system with that 24 volt stat from Home
>Cheapo.
>Bubba
Personally I'd use a 240 volt thermostat in case I ever decided to
zone the system, that way there is some extra voltage to go around.
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>Honeywell Thermostat with a Heat Only Honeywell Thermostat from Home
>Depot because the Heating System didn't kick on when the old beat-up
>one was turned on. The Directions of the new Thermostat say for two
>wire systems connect one wire to the R terminal and one to the W
>terminal. I did it and the thermostat doesn't kick the system on. I
>tried swapping the wires and the thermostat still doesn't work.
>I touched the two wires coming out of the wall (There is only one black
>one and one white one) to determine whether the gas burner comes on and
>it does...
>Any ideas on what could be wrong? Is it the thermostat from Home
>Depot? It says 24Volt on it.