Precise Fitment: Ensures perfect alignment and bolt-load distribution across the gas valve manifold surface

ensuring the technician can identify minor fluctuations in manifold or header pressure

The Rate-of-Rise (ROR) element responds to temperature increases exceeding 15°F per minute

What are the symptoms of a bad R07489B003 relay

or Janitrol furnaces

Lennox 80K26 Pressure Switch Els PW 17895 Precise Fitment: Ensures perfect alignmentThe Lennox 80K26 Pressure Switch is a critical OEM safety component designed for Lennox furnace troubleshooting and repair. This single pole single throw (SPST) air pressure switch is factory calibrated to actuate at . 29" WC (Water Column) and reset at 0. 44" WC, ensuring the inducer motor generates sufficient draft before the ignition sequence begins. Built with a 1 4" barb connection for seamless integration with standard vacuum tubing, the 80K26