About the Honeywell VC8715AM1000 24V 3/4" Sweat VC Valve
Honeywell VC8715AM1000 24V 3/4" Sweat VC Valve w/Auxiliary Switch. Controls HVAC systems, fan coil systems, radiators and convectors. Depending on model, can be controlled by either a low or line voltage SPST/SPDT or floating controller such as a room thermostat, Aquastat control, or flow switch.