Resideo 4074EZB Air Flow Switch 321894-708 Enhanced Safety: Features a built-in
Baker’s notes & crumb story
Description
Enhanced Safety: Features a built-in test button for verifying switch operation and circuit integrity during routine maintenance
the Zonefirst MMZ3 is the modern drop-in replacement tailored to match the footprint and basic terminal logic of the older CMM-3 series
Direct OEM Compatibility: Verified replacement for 1027351R
allowing it to function at 1/3 HP
Resideo 4074EZB Air Flow Switch 321894-708 Enhanced Safety: Features a built-inThe Resideo 4074EZB Air Flow Switch bag assembly is a critical field replacement component for maintaining the operational integrity of Honeywell Home electronic air cleaners. Engineered for specific compatibility with F300E, F50F, and AFS series units, this differential pressure switch ensures the air cleaner only energizes when sufficient airflow is detected within the ductwork. This prevents ozone buildup and protects internal components from dry