Always verify the voltage requirements on the powerhead plate before installation to avoid electrical failure

provided the switch is mounted according to the manufacturer's original orientation to prevent moisture accumulation in the diaphragm

you must always use the reset type specified by the manufacturer for your specific model to prevent dangerous cycling on a high-limit condition

Verification of the serial number and cabinet width is recommended before installation

maintaining the original factory balance to minimize bearing wear on the condenser fan motor

Hydrotherm BM-8782 Aquastat Limit 30067439-890 Always verify the voltage requirementsThe Hydrotherm BM 8782 Aquastat Limit is a specialized immersion type temperature controller designed for precise fluid management in hydronic heating boilers. As a critical safety and operational component, this aquastat high limit switch monitors internal water temperatures to prevent overheating conditions that can lead to system fatigue or pressure relief valve discharge. Engineered with a durable liquid filled sensing element and a robust SPST