you know that maintaining system integrity in Carrier FE4A and FV4C air handlers requires exact OEM matches

Technicians should verify if the existing switches or specific models (HK06NB023/HK06NB025) are required for the installation

improper leveling of the air handler

OEM Fit and Reliability: Engineered as a genuine York replacement part to match original factory specifications for port sizing and MOPD

Lennox 26W85 Pressure Switch 323055-751 you know that maintaining systemMaintain precise combustion control with the Lennox 26W85 Pressure Switch, an essential dual stage pressure switch designed for Lennox G61 furnace series and high efficiency HVAC platforms. This OEM Lennox replacement part (part number 101021 09) features factory calibrated set points of 0. 90" W. C. for low fire and 1. 30" W. C. for high fire stages. As a 2 stage pressure switch with SPST electrical configuration, it monitors the inducer motor's