always verify the Lochinvar gasket is seated perfectly against the heat shield to avoid the nuisance leaks common in high-cycle water tube systems

This microprocessor-based control board serves as the direct replacement for discontinued part number 42001-0052S

Durable Construction: Built with high-grade components to withstand frequent cycling and ambient temperature fluctuations common in attic or crawlspace installs

High-Speed Performance: Robust 3450 RPM output ensures consistent 75 CFM airflow for proper furnace venting

Key Benefits for HVACR Contractors: Broad Compatibility: Rated for a wide variety of refrigerants and compatible with modern HFC and HCFC systems

Lennox 26W86 Pressure Switch 319825-402 always verify the Lochinvar gasketThe 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