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For contractors managing interrupted ignition applications
Unlike triple aquastats
Professional testing involves checking the secondary voltage output and inspecting the ceramic for hairline cracks
making it the standard choice for professional HVAC pilot repair operations
McDonnell & Miller 750-HW-MT-120 Control R-410A For contractors managing interrupted ignitionThe McDonnell & Miller 750 HW MT 120 (Part Number 176236) is a heavy duty 120Vac high water cut off designed to provide failsafe protection for steam boilers and hot water heating systems. Engineered for commercial and industrial environments, this manual reset control prevents hazardous overfill conditions by interrupting the burner circuit or water feeder pumps the moment water levels exceed the safety probe's threshold. Unlike automatic reset
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