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Need help with honeywell TB8575A1000 Fan coil thermostat wiring

27K views 9 replies 5 participants last post by  beenthere  
extra violet wire

i just purchased the tb6575a to replace the old honeywell t6575b and have the same curiosity with the extra violet wire coming out of the hvac wall that was connected to terminal 6, labeled 'fan common' in the t6575b. The new thermostat doesn't seem to have room for the violet wire..would the advice to ignore it be the same in my situation as it was with the previous 24 volt thermostat posted by desihype..