Greenheck SP-B90 Ceiling Exhaust Fan 321894-706 The valve must be piped

The valve must be piped so that the paddle closes against the direction of flow (typically marked B to A on the body)

The VS2325 body itself is compatible with both spring-return actuator types

Precise Fit: Features a 1 3/16-inch fixed bore for direct

If you are reading infinite resistance or a value outside the standard York sensor resistance chart (approximately 11

which indicates a block in the drain coupling or a failure in the vent sequence

Greenheck SP-B90 Ceiling Exhaust Fan 321894-706 The valve must be pipedThe Greenheck SP B90 is a high performance ceiling exhaust fan engineered for continuous or intermittent ventilation in commercial and high end residential applications. Operating at 115V with a 1500 RPM motor, this unit delivers a nominal 90 CFM, making it an ideal bathroom exhaust fan for moisture control and air quality management. The low profile housing is constructed from heavy gauge galvanized steel, designed to fit into tight ceiling plenums