Aprilaire 56 Humidistat Controller 318172-701 this valve utilizes a thirst-proof

this valve utilizes a thirst-proof adsorption charge consisting of active carbon and CO2

it will maintain its last position upon loss of power rather than returning to a fail-safe position

Service Ready: Specifically sized for Watts 3001 series and 3005 series 1-1/2 inch unions

Designed to monitor the vacuum created by the inducer motor

This 24Vac/Vdc actuator provides a robust 35 lb-in torque capacity

Aprilaire 56 Humidistat Controller 318172-701 this valve utilizes a thirst-proofThe Aprilaire 56 Humidistat Controller is a high precision automatic humidifier control designed to maintain optimal indoor humidity levels without the need for constant manual intervention. Utilizing AutoTrac technology, this 24V duct mount humidistat monitors outdoor temperatures via an included outdoor temperature sensor and automatically adjusts the indoor relative humidity (RH) to prevent window condensation while maximizing comfort. It is