Galvanized Box Fans - Direct Drive

Instruction manual for direct-drive galvanized box exhaust fans. Covers safety instructions, specifications with dimensions, performance data, installation procedures, maintenance requirements, troubleshooting guide, repair parts list, and warranty policy. Model with "S" suffix includes discharge shutter. Models: 24D370, 36D370, 36D370T, 36D370S, 48D750, 48D750T