Optimized Flow: The 1 5/8-inch ODS connection minimizes pressure drop across the suction inlet

Technicians should verify minimum circuit ampacity (MCA) and maximum overcurrent protection (MOP) requirements to ensure the field wiring meets local electrical codes

it eliminates the geometry issues common with generic blowers

The existing pilot tubing is typically reused

requiring a crank arm linkage for operation

Greenheck 309133 Motor 321894-709 Optimized Flow: The 1 5/8-inchThe Greenheck 309133 Motor is a high performance 1 3 HP OEM replacement motor engineered for critical ventilation applications. Operating at 115V single phase with a 3. 3 Amp draw, this 1600 RPM motor provides the high torque output necessary for Greenheck SP A780, SP 258, and SP 158 exhaust fan assemblies. Featuring a 5 inch body diameter and a 1 2 inch diameter shaft with a flat, this PSC motor ensures a precise mechanical fit during field