Remove Old Thermostat; Replacing A Clock Thermostat That Has C/C1 Clock Terminals?; Six Or More Wires?; Three Thermostat Wires? - Honeywell CT2800A1009 Programming And Installation Instructions
Weekday/weekend (5-day/2-day) programmable heat and/or cool low voltage (20 to 30 vac) thermostat and mounting plate