Can SP, CSP, SQ, BSQ, BCF or BDF model fans be mounted vertically?
Models SP and CSP can be vertically mounted, but the backdraft damper on the “B” design may not close depending on the orientation. Models SQ and BSQ can be mounted in any orientation, except for the larger/heavier motors need to be externally supported when the motor is on the side. Models BCF and BDF can not be mounted vertically unless the internal vibration isolation is removed and replaced with solid studs.