This component is specifically engineered for high-output environments

you should adjust the air pressure to match your boiler fill valve setting (typically 12–15 PSI) while the tank is empty or isolated from system pressure

ensuring compatibility with diverse building automation systems (BAS)

Common causes include a clogged 1-inch pleated filter

Application Specific: Drop-in compatibility for Maxitrol 210E and Maxitrol 325-9 models simplifies field adjustments

Field Controls 46487101 Vent Damper Freon This component is specifically engineeredThe Field Controls 46487101 (Model GVD 6PL) is a 6 inch stainless steel automatic gas vent damper designed for 24Vac gas fired atmospheric heating systems. This unit is a direct replacement for 240006938, Q35RE 1, RVGP KS 6BKF, and legacy GVD 6 models. Engineered for both intermittent ignition and standing pilot applications, the GVD 6PL uses a power open, power close motor that completes its cycle in 15 seconds. By closing the stack during the off