Fulton Boiler 2-40-001421 Relay 320788-704 Engineered for HVAC system diagnostics

Engineered for HVAC system diagnostics

Maintain the integrity of your pneumatic control systems with the Johnson Controls DPM18A-600R Diaphragm Kit

Common Technical Questions: What are the symptoms of a failing York S1-031-03010-000 control board

it will break the circuit to the gas valve

Most ASCO coil kits allow for a straightforward swap without disconnecting the valve body from the fluid line

Fulton Boiler 2-40-001421 Relay 320788-704 Engineered for HVAC system diagnosticsThe Fulton Boiler 2 40 001421 Relay is a critical LWCO relay (Low Water Cut Off) component engineered for precise electrical switching in heating applications. This genuine OEM replacement ensures seamless integration with Fulton boiler control systems, regulating power to heating elements and ignition circuits with technical precision. Benchmarked for industrial reliability, this 4 pin boiler relay features a 10 amp switching capacity and is rated