Greenheck SP-A390 Ceiling Exhaust Fan R-22 this board is the correct

this board is the correct technical replacement for specific models across all three brands that use the 031-00880-XXX series

it provides the high-resolution feedback necessary for managing static pressure in commercial air handlers and rooftop units

The dedicated ground rod ensures the control circuit has a clear path

professional finish on every service call or retrofit project

Smith models are compatible with this cleaning kit

Greenheck SP-A390 Ceiling Exhaust Fan R-22 this board is the correctThe Greenheck SP A390 is a high performance ceiling exhaust fan designed for continuous or intermittent ventilation in commercial and institutional applications. Engineered for silent operation, this centrifugal fan delivers up to 390 CFM at 0. 1 in. wg., utilizing a forward curved galvanized steel wheel for maximum airflow efficiency. The unit features a direct drive motor equipped with thermal overload protection and a plug in power cord,