Siemens Building Technology 656-0017 Valve 318423-701 Operating on a standard 24V

Operating on a standard 24V HVAC control circuit

this HVAC expansion valve is a direct replacement for legacy part numbers 664344 and 664267

Using a 240V HT coil on a 120V circuit will cause the valve to fail to actuate

Heavy-Duty Build: Ball bearing motor construction and Class B insulation ensure thermal stability during continuous operation

Replacing a faulty box is a standard solution for furnace pressure switch failure related to the secondary heat exchanger

Siemens Building Technology 656-0017 Valve 318423-701 Operating on a standard 24VThe Siemens Building Technology 656 0017 is a heavy duty 1 2 inch pneumatic radiator valve engineered for proportional control in two pipe steam or hot water systems. This normally open (N. O.) assembly features an angle union valve body constructed from durable brass, designed specifically for terminal unit applications like convectors, fan coil units, and baseboard radiation. With a 2. 1 Cv capacity and a standard 3 8 psi spring range, this valve