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

What is the purpose of the Class F rating

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

Can this be used on systems with POE oil

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

Hydrotherm BM-8782 Aquastat Limit 30067439-890 you must always use theThe 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