Description
The Tjernlund Products WHK-E Water Heater Control Interlock Kit is a control and safety integration assembly that connects millivolt water heaters with compatible ventilation control systems. It provides the electrical and signal interface required to coordinate burner operation with venting system status, ensuring proper sequencing between ignition and exhaust management. Venting systems rely on this interlock feature to maintain safe operation and prevent improper firing conditions during use. Placed within the control wiring and safety circuit, it acts as an interface kit that supports secure system coordination, controlled operation of connected water heating equipment, and reliable overall performance in vented heating requirements.
