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The Watts 0556001 (model 100XL-8-150) is a heavy-duty 3/4 inch T&P relief valve engineered for critical temperature and pressure protection in water heater and storage tank applications
preventing over-firing or incomplete combustion in propane gas applications
Common Questions & Technical Support
extending the service life of Johnson Controls station assemblies
and magnetic switches in HVACR and building management environments
Field Controls 46273100 Pressure Switch Els PW 17895 The Watts 0556001 (model 100XL-8-150)The Field Controls 46273100 Pressure Switch is a critical safety component designed for precise draft pressure monitoring in residential and commercial HVAC systems. This single pole single throw (SPST) switch features a compression connection, ensuring a secure, leak proof interface with the pressure sensing line. Built to detect combustion air pressure variations, it serves as a fail safe to prevent burner operation under blocked flue or inadequate