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It functions using a 250mV to 750mV power pile
making it a staple for industrial and commercial plumbing automation
Can I use this for Propane (LP) conversions
Always verify the cross-reference for the 47-21900-16 part number
permanent interface with the liquid line
McDonnell & Miller 64-HD Cut Off Refrigerant It functions using a 250mVThe McDonnell & Miller 144400, also known as the 64 HD Head Mechanism, is a heavy duty replacement unit designed for Series 64 and Series 764 low water cut offs. Engineered for both hot water and steam boilers, this mechanical oversight component facilitates an auto reset function to ensure continuous system protection without manual intervention. As a float type LWCO mechanism, it is rated for a maximum boiler pressure of 50 PSI. This unit serves as
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