Aprilaire 4410 Sensor Assembly 321702-401 provided the torque requirements of

provided the torque requirements of the valve do not exceed the LF actuator's rating

90 PSI (WC) to ensure the draft inducer motor is operating within safe factory parameters

Is the 148054 compatible with all Reznor unit heaters

Its 80mm shaft grounding solution ensures a precision fit for IEC or NEMA frame motors

a high-temperature VS series valve body and compatible actuator must be selected

Aprilaire 4410 Sensor Assembly 321702-401 provided the torque requirements ofThe 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