the 90-130 is a standard industry replacement for the Mars 24010 and other 40VA fan centers sharing the same DPDT relay configuration and technical specifications
Use a multimeter to check the resistance of the coil across terminals 2 and 5 (depending on the specific wiring diagram)
which prevents scalding and water waste by ensuring the valve returns to its seated position immediately after use
this specific model is an SPST heating thermostat
the internal check valve and bypass bleeds ensure stable refrigerant metering without the risk of liquid slugging or evaporator starving
Williams P295200A Gas Valve 30067439-890 the 90-130 is a standardThe Williams P295200A Gas Valve is a critical natural gas control valve for technicians servicing Williams Direct Vent Wall Furnaces. Engineered for precision gas regulation, this 1 2" NPT gas valve is factory set to a 4" WC (Water Column) manifold pressure, ensuring optimal combustion efficiency and thermal output. It serves as the primary gateway within the control assembly, managing fuel flow for 14,000, 20,000, and 30,000 BTU models, specifically
