Fasco UB564 Motor it includes a 300 degree

it includes a 300 degree fuse link rated for 25 amps

and UDBP series equipment

How do I ensure this is the correct orifice size for my system

" where the burners shut off prematurely while the blower continues to run

Fasco UB564 Motor it includes a 300 degreeThe Fasco UB564 Motor is a high efficiency 9W shaded pole motor designed specifically for refrigeration and ventilation applications requiring consistent 1550 RPM performance. Operating at 230V, this unit serves as the direct replacement for Fasco D564, ensuring seamless mechanical compatibility without the need for mounting modifications. This motor features a CWOSE rotation (Clockwise Opposite Shaft End) and utilizes an impedance protected design to