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quick furnace transformer wiring question
No_Caller_ID
Member Posts: 5
in Gas Heating
i am replacing an old york 025-21911-001 transformer...while positioning it to snap a pic of the wiring before removing it, one of the wire clips fell off. with the 5 thermostat wires, there were 3 thicker gauge wires attached with a clip. an orange wire was connected on the W terminal, the blue common wire connected to C, then a white wire is what slipped off. it seems it had to go on the Y or G but i wanted to be sure....any help? thanks in advance
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Comments
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A few pics might help. A pic of the schematic of the unit also.0
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This is the pic I took for my reference, I just slipped the white wire on that terminal because it was approximate area it came from. This is all I have now as I left that property for the night, but it’s an older York gas furnace with central air connected0
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Looks like the right spot.0
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Which white wire? Theres two.
Also bend the white on the Y terminal away from the C terminal a little.
Post a pic of the wiring diagram. Theres usually an additional wire connected to the G terminal to energize the fan relay.
The white wire on the Y terminal is factory wiring?
I might be wrong but the Y terminal is typically just a spot to connect the Y from the thermostat and another wire that goes to the condenser.0 -
The thicker gauge white wire is the one in question. As I said it looks like it could have only been on Y or G. I put it on Y just for the pic, knowing that I was unsure of it.
Not 100% sure but I think all the white wires, besides the thermostat white, were neutrals from the ac power...but this is based off memory and I won’t be back there till later today to verify0 -
> @No_Caller_ID said:
> The thicker gauge white wire is the one in question. As I said it looks like it could have only been on Y or G. I put it on Y just for the pic, knowing that I was unsure of it.
>
> Not 100% sure but I think all the white wires, besides the thermostat white, were neutrals from the ac power...but this is based off memory and I won’t be back there till later today to verify
OK. Post the wiring diagram.0
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