the 8620-080 serves as a direct OEM replacement fan switch

it ensures stable combustion and optimal thermal efficiency for demanding hydronic systems

Precise Thermostatic Control: High-accuracy temperature sensing to minimize hunting and overshoot in commercial HVAC systems

Maintaining a reliable flame signal is critical for the safe and efficient operation of gas-fired water heaters and boilers

Engineered with a ruggedized NEMA 4/IP65 enclosure

Aprilaire 4410 Sensor Assembly 326070-701 the 8620-080 serves as aThe Aprilaire 4410 Sensor Assembly is a critical genuine OEM replacement part designed specifically for the Aprilaire Model 400, 400A, and 400M humidifier series. This Water Level Sensor Assembly operates using two high precision magnetic reed switches wired in series to monitor the positioning of internal floats. When the water level in the sump drops, the floats descend, closing the switches and triggering the water solenoid valve to replenish the