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Designed for high-efficiency dual-stage furnaces
and diaphragm wear
the DPST configuration allows for various wiring schemes to handle compressor cycling or safety lockout functions depending on the terminal connections
The Watts 0382818 (Model 740-1-45) is a heavy-duty
providing a consistent fail-safe response
Watts 0121427 Valve Refrigerant Designed for high-efficiency dual-stage furnacesIf you are servicing high capacity commercial water heaters, the Watts 0121427 (Model LF40XL 7 125) is the industry standard temperature and pressure relief valve for systems requiring high BTU throughput. This 1 inch T&P valve features a 7 inch coated extension thermostat and is engineered to protect potable water tanks from excessive thermal expansion and over pressurization. It serves as the direct 0121427 updated version for the Watts 0163758,
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