Siemens Building Technology 656-0009 Valve Refrigerant This slow-opening gas valve design

This slow-opening gas valve design prevents hard ignitions and reduces stress on the heat exchanger

Versatile Circuitry: The Single Pole Double Throw (SPDT) configuration allows for both normally open and normally closed power paths

This redundant gas control valve is designed to handle the sequencing requirements of multi-stage furnaces and boilers

Quiet Operation: Wet rotor design eliminates the need for mechanical seals and provides whisper-quiet performance

Safe Ignition Sequence: Provides consistent flame detection signals to the control board to prevent hazardous gas buildup

Siemens Building Technology 656-0009 Valve Refrigerant This slow-opening gas valve designThe Siemens Building Technology 656 0009 is a high performance pneumatic mixing valve designed for precision control of hot water, chilled water, and low pressure steam in terminal unit applications. Featuring a 1 2" flare connection (OD SAE), this normally open 3 way assembly is a staple for veteran techs servicing fan coil units, radiation systems, and reheat coils. This Powermite 656 series valve operates within a 10 15 psi spring range, a critical