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T4 Pro Programmable Thermostat with stages up to 2 Heat/1 Cool Heat Pumps; up to 1 Heat/1 Cool Conventional Systems
Original was a 5-2 programmable; TH4210U2002 is 7 day, 5-2, 5-1-1 or non-programmable
Or
T4 Pro Programmable Thermostat with stages up to 1 Heat/1 Cool Heat Pumps or 1 Heat/1 Cool Conventional Systems
Original was a 5-2 programmable; TH4110U2005 is 7 day, 5-2, 5-1-1 or non-programmable
T6 Pro Programmable Thermostat with stages up to 3 Heat/2 Cool Heat Pumps or 2 Heat/2 Cool Conventional Systems
Original was a 5-2 programmable; TH6320U2008 is 7 day, 5-2, 5-1-1 or non-programmable
T6 Pro Programmable Thermostat with stages up to 2 Heat/1 Cool Heat Pumps or 2 Heat/2 Cool Conventional Systems
Original was a 5-2 programmable; TH6220U2000 is 7 day, 5-2, 5-1-1 or non-programmable
T6 Pro Programmable Thermostat with stages up to 2 Heat/1 Cool Heat Pumps or 1 Heat/1 Cool Conventional Systems
Original was a 5-2 programmable; TH6210U2001 is 7 day, 5-2, 5-1-1 or non-programmable
