Cleveland Controls AFS-438 Switch Els PW 17895 it effectively detects flame ionization

it effectively detects flame ionization to ensure the ignition module maintains gas flow safely

capable of withstanding the extreme thermal cycling required for consistent burner ignition

which is critical for preventing temperature overshoot in high-mass radiator systems

Broad Refrigerant Range: Fully compatible with R22

With an electrical rating of up to 277Vac and 15A non-inductive load

Cleveland Controls AFS-438 Switch Els PW 17895 it effectively detects flame ionizationThe Cleveland Controls AFS 438 is a professional grade SPDT air pressure sensing switch designed for critical monitoring in HVAC, energy management, and light industrial applications. This adjustable pressure switch features a versatile set point range of 0. 05" w. c. to 2. 0" w. c., allowing for precise field calibration to verify positive, negative, or differential air pressure. Engineered with a durable plated housing and a silicone compatible