Aprilaire 56 Humidistat Controller 320788-704 check your existing assembly for

check your existing assembly for the bale strap or terminal cover

Focus on maintaining a leak-free seal and proper port orientation for optimal air preparation performance

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

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

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

Aprilaire 56 Humidistat Controller 320788-704 check your existing assembly forThe 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