Switching Subbase, Heat Pump and Split Sytem Applications, Heat-Off-Cool-Auto System Switch Positions, Auto/On Fan Switching, Provide Manual Switching for T7067 Thermostat/Transmitters, Mount Directly on Wall or on Vertical 2"x4" Outlet Box, Provides Intermittent Fan Operation in Cooling when used with W974b

Switching Subbase, Heat Pump and Split Sytem Applications, Cool-Auto-Heat-Emergency Heat System Switch Positions, Auto/Off and Off Position Huts off Entire System Fan Switching, Provide Manual Switching for T7067 Thermostat/Transmitters, Mount Directly on Wall or on Vertical 2"x4" Outlet Box