Field Controls 46131800 Blower Wheel Freon NSR Manual Override: Non-spring return

NSR Manual Override: Non-spring return design includes a manual crank for field adjustments and emergency positioning

While primarily used in air-source units

The NFBUP-X1 is designed for 2-wire on/off control

it provides an inherent fail-safe by blocking flow when de-energized

and air shutter adjustments required to derate the appliance according to manufacturer specifications

Field Controls 46131800 Blower Wheel Freon NSR Manual Override: Non-spring returnThe Field Controls 46131800 Blower Wheel is a critical replacement component engineered specifically for SWG 3 and SWG 4 Series Power Venters. Designed to maintain precise static pressure and optimal flue gas induction, this centrifugal wheel ensures the ventilation system operates within its designated airflow parameters. When a blower wheel accumulates excessive soot or suffers from structural blade deformation, it leads to motor strain and