Cleveland Controls AFS-405-121 Switch Els PW 17895 maintaining administrative compliance with the

maintaining administrative compliance with the original equipment manufacturer's airflow safety protocols

The 311616 spring is typically used in the MP953A and C direct-acting models to force the stem down upon air pressure loss

making it suitable for high-pressure HFC and HFO refrigerants

making it a versatile HVAC replacement part for technicians performing field service or preventative maintenance

if a pressure drop exceeding 3 PSI is detected across the unit

Cleveland Controls AFS-405-121 Switch Els PW 17895 maintaining administrative compliance with theThe Cleveland Controls AFS 405 121 is a professional grade air pressure sensing switch specifically engineered for HVAC, DDC, and energy management proving circuits. This field adjustable unit features a broad operating range of 0. 05" w. c. to 12. 0" w. c., making it a versatile solution for sensing positive, negative, or differential air pressure across filters, coils, and fans. To ensure reliable performance in low current and computer interface