Description
The Lennox 22J53 Sequencer Relay is a part of HVAC systems and is especially used for the control of heating element sequences. It works electronically and functions like switch making and breaking circuits depending on a predetermined setting. This sequenced operation ensures heating has been done in a proper way by activating heating elements in a step wise manner, thus avoiding large current flow and possible system overload. Originally installed in the Lennox HVAC equipment. this sequencer relay has some advantages. It provides the means of controlling the staging of heating elements and ensures that system efficiency is not reduced with energy consumption.
