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The HK02ZA439 426-320 switch is critical for HVAC compressor protection
including lighting arrays
non-combustible solution suitable for high-temperature safety applications up to 250°F
making it a critical component for restoring system balance and achieving optimal SEER ratings
Using a different pitch can cause HVAC unit replacement needs by overheating the fan motor due to increased torque requirements
McDonnell & Miller 369-MV Cut Off 30067439-890 The HK02ZA439 426-320 switch isFor steam boiler applications requiring integrated safety controls, the McDonnell & Miller 369 MV Cut Off (Part Number 155400) provides a robust solution for monitoring critical water levels. This float type low water cut off is specifically engineered for residential and commercial systems utilizing a millivolt switch, making it an essential component for self generating gas valve circuits or 24VAC burner systems. It features a 2 1 2" NPT male