Lennox 22J51 Relay-Sequencer Common indicators include the compressor

Common indicators include the compressor humming without starting

Machined to exacting tolerances

Bypassing any limit control is prohibited

this model is designed for positive pressure monitoring only

While designed for 240V

Lennox 22J51 Relay-Sequencer Common indicators include the compressorThe Lennox 22J51 Relay Sequencer is a critical 24V control component designed to manage the staged activation of heating elements and blower motors in electric furnaces and air handlers. For technicians performing field repairs, the 22J51 serves as the direct replacement for R76726700, ensuring seamless integration with existing Lennox and Allied Air equipment. This HVAC sequencer utilizes factory calibrated time delays to prevent electrical overloads