Proper installation of the Williams heating part is necessary whenever the pilot assembly is serviced or the combustion seal is breached during routine maintenance

commercial ranges

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

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

It is compatible with copper

Cleveland Controls RFS-4100-021 Pressure Switch Proper installation of the WilliamsThe 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