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View Full Version : Changing thermoststs


RonnieGuitar
May 14, 2014, 04:37 PM
I have a heat pump with aux backup heat. I had a Janitrol thermostat with mercury and I'm changing to a digital Honeywell RTH2510. I'm not sure how the wiring goes. What is the W terminal on the old Janitrol for, or what does it wire to?

ballengerb1
May 14, 2014, 07:12 PM
Worth reading Honeywell Thermostat RTH2510 wiring question etc - DoItYourself.com Community Forums (http://www.doityourself.com/forum/thermostatic-controls/512540-honeywell-thermostat-rth2510-wiring-question-etc.html#b)