As the direct replacement for the legacy 1184561

and 20462204

this specific model is designed for 3-point floating (open/stop/close) signals

you must manually depress the red reset button to restore power to the heating circuit

It is primarily compatible with Johnson Controls VB-3752 series valves

Tjernlund Products HS3 Power Venters 320788-704 As the direct replacement forThe Tjernlund HS3 Side Wall Vent System is a high performance power venter engineered for gas fired furnaces, boilers, and water heaters. Designed to provide positive mechanical draft where natural draft venting is restricted, this sidewall venter eliminates the need for vertical chimneys. The HS3 utilizes a stainless steel construction and high temperature motor to withstand flue gas temperatures while maintaining consistent static pressure. As a gas