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the 2218-132 is specifically engineered for systems requiring two setpoints or seasonal action changes
If your unit heater is short-cycling or the control board displays a limit trip code
Field Serviceability: Designed for standard pneumatic maintenance protocols
The Modine 3H0372660001 is a high-precision Natural to LP Conversion Kit designed for the field conversion of specific low-profile gas-fired unit heaters
McDonnell & Miller 193 Controller 30067439-890 the 2218-132 is specifically engineeredThe McDonnell & Miller 193 (Part Number 163400) provides heavy duty combination low water cut off and pump control for commercial and industrial steam boilers. Engineered for high pressure systems with a 150 PSI maximum pressure rating, this unit features dual snap acting SPDT switches to ensure precise differential control and reliable burner shut down. The proportional action of the float mechanism maintains tight water level tolerances, preventing