4-inch WC pressure control prevents the system from firing if venting is compromised or a blocked exhaust vent is detected

Broad Compatibility: Engineered for use across a wide range of Modine gas-fired unit heaters

When equipped with the 12A04 vent limiter

replacing the 68-24016-01 is standard best practice to prevent vacuum leaks that could lead to intermittent fault codes or unit lockout

Cleveland Controls RFS-4100-021 Pressure Switch 4-inch WC pressure control preventsThe Cleveland Controls RFS 4100 021 Pressure Switch is a high performance adjustable pressure switch designed for air monitoring in HVAC and industrial systems. Specifically engineered to change contacts on increasing pressure, this OEM pressure switch features a versatile setpoint range of 0. 15" w. c. . 02" to 5. 0" w. c. Built for reliability in demanding airflow applications, it supports a maximum pressure of 0. 5 PSI (1 2 PSI) and is compatible