Question about Heating & Cooling
Is this the 2 wire valve on the furnace, if so i'm pretty sure it's a 24 volt setup, check on valve it should say,there will be a 24 transformer,the valve or relay and a thermostat,one wire from 24 volt side of transformer to valve,other wire from transformer goes to R on thermostat,other wire W from thermostat returns to connect to other terminal on valve or relay if it's forced air, sure hope this helps
Posted on Jan 31, 2010
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Posted on Jan 02, 2017
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