Description
The York S1-02419082039 Heat Sequencer Relay is a 24V is an essential control components designed to used in electric heating systems to stage elements in a controlled sequence in HVAC systems. It is installed in furnaces and air handling units equipped with electric resistance heaters. The relay uses a timed or temperature-based switching mechanism to activate multiple heating stages gradually, avoiding sudden electrical load surges. In system operation, it coordinates heater connecting cycles based on thermostat demand, supporting stable temperature rise and protecting electrical components from overload within commercial heating parts.
