Aprilaire 56 Humidistat Controller 320788-704 moving the saturated nitrile paddle

moving the saturated nitrile paddle to its original position during a power loss to prevent overheating or system imbalance

Simplified Installation: Standard in-wall mounting design fits most single-gang electrical boxes for fast retrofits

the VG1841AD offers a robust profile for interfacing with VA9104

Contractor-Grade Reliability: Simplifies field repairs by ensuring exact fitment with existing burner tubes and gas valve assemblies

Direct immersion design ensures maximum thermal transfer efficiency compared to external wrap-around heaters

Aprilaire 56 Humidistat Controller 320788-704 moving the saturated nitrile paddleThe 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