Lennox 26W86 Pressure Switch 320788-703 Its thermal response profile is

Its thermal response profile is specifically matched to the furnace's airflow dynamics

replacing multiple older MicroGateway configurations

refer to the VS series PopTop valves

Whether you are servicing an HD30

Pilot selection depends on your specific application

Lennox 26W86 Pressure Switch 320788-703 Its thermal response profile isThe Lennox 26W86 is a mission critical 2 stage high altitude pressure switch engineered for precision in demanding environments. Designed as a direct Lennox 101021 10 OEM replacement, this dual stage component is calibrated for systems operating above 4,500 feet where air density impacts combustion. It features dual set points of 0. 90" WC for low stage and 1. 20" WC for high stage operation, ensuring the inducer motor maintains proper static pressure