The polyester air filter construction provides superior surface loading capacity while maintaining a thin profile necessary for the 101-401 air filter kit housing

Whether you are performing a furnace repair or routine HVAC system diagnostics

Will this fix a furnace that runs for 3 seconds then shuts off

Macon Umbrella Adapters are designed for live installation

When troubleshooting Amana or Goodman packaged terminal air conditioners

Lennox 22J51 Relay-Sequencer The polyester air filter constructionThe 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