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I'm trying to install a new Honeywell wifi thermostat. The
Hi Brian, I'm trying to install a new Honeywell wifi thermostat. The old Trane thermostat only had 3 wires. Black/data, Red/hot & Blue/common.The relay panel on the HVAC system only has terminals for … read more
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I was recently given a Honeywell programmable thermostat model
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