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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I am trying to wire a honeywell rth221b thermostat to rheem

Customer Question

i am trying to wire a honeywell rth221b thermostat to rheem 90 plus
Submitted: 1 year ago.
Category: HVAC
Expert:  Phil replied 1 year ago.
Hello, tell me if this is a new installation or not, and if there is air conditioning attached.... and if it is an older installation, what color wires were attached to which terminals on the old thermostat. We can go from there