Fans by Fantech Electronic Catalogue

2016

6.0 GENERAL (Cont.)

Figure 6.5. - Motor Position

Position the motor of a belt-driven fan such that the belt leaving the motor pulley is uppermost as this will increase belt arc of

contact.

Belt leaving motor pulley is less taut than upper length and the

slight sag will reduce arc of contact on the drive pulley.

Arrangement with the maximum arc of contact of the drive

pulley where energy is applied, reduces belt squeal at start-up

and improves efficiency.

Most important aspect is that the motor is accessible and to

ensure belts are correctly tensioned and aligned.

INSTALLATION DO’S AND DON’TS

P-24