Aprilaire 4655 Humidifier Control 328140-751 Corrosion Resistance: Built with high-durability

Corrosion Resistance: Built with high-durability materials to withstand the continuous demands of HVAC cooling equipment and secondary loop systems

The Wayne 60172-002 features a rugged housing and a motor rated for 600 RPM to handle the high static pressure requirements of the P250AF burner series

guaranteeing exact mechanical fit and pressure ratings without the risks of universal aftermarket components

3-inch frame and an open air-over enclosure

this manual changeover thermostat ensures stable performance and accurate temperature regulation without the risk of logic loss

Aprilaire 4655 Humidifier Control 328140-751 Corrosion Resistance: Built with high-durabilityThe Aprilaire 4655 Humidifier Control is a reliable, manual humidistat designed to provide precise low voltage 24V management for your central heating and cooling system. This essential HVAC humidity sensor utilizes a highly sensitive mechanical nylon ribbon filament that expands and contracts based on moisture levels, ensuring your whole house humidifier operates only when necessary. By manually adjusting the relative humidity (RH) setpointtypically