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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Can the Honeywell TH5220D1029 be replaced with the Honeywell

Customer Question

Hello, Can the Honeywell TH5220D1029 be replaced with the Honeywell TH6220D thermostat? The wiring on the TH5220D1029 is currently to L, E, Aux, G, O/B, C, Y, R with a jumper to the RC. The TH6220D has the terminals L, Aux/E, G, O/B, C, Y, R with jumper to RC. I need assistance with wiring to the TH6220D terminals.
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.
did you program for heat pump?
was power off to air handler when changing?

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