6A AC motor is compatible with models such as 502-A

which is the standard requirement for most air tool and control applications

ensuring the combustion environment is stable before allowing the ignition sequence to proceed

Suitable for compatible R-410A residential and light commercial HVAC systems

If these components are functional but the board doesn't send voltage to the gas valve

Siemens Building Technology 257-02040 Valve Assembly 320720-756 6A AC motor is compatibleThe Siemens Building Technology 257 02040 is a specialized 2 way normally open control valve assembly designed for high performance hydronic flow regulation. As a veteran grade pneumatic HVAC control valve, this unit is engineered with a 1 2 inch angle NPT by union male connection, facilitating streamlined installation in tight mechanical spaces. The forged brass body and internal brass trim ensure rugged reliability against the constant cycling of