Hold the housing so that it is in contact with the bottom of the joist. Attach
the housing with four (4) screws to the joist through the holes in each
mounting flange.
1. MOUNT HOUSING TO JOIST OR I-JOIST.
NAIL
DUCT
2. MOUNT WITH HANGER BARS
2a. Sliding hanger bars have been provided, which allow the housing to
be positioned accurately anywhere between the framing. The bars span
up to 24 in. and can be used on all types of framing: I-joist, standard joist,
and truss construction. Slide hanger bars onto housing and adjust as
needed to fit between framing.
2b. Extend the hanger bars to the width of the framing. Position the
ventilator with the hanger bar tabs wrapped around the bottom edge of
the framing, holding the ventilator in place.
Secure hanger bars to framing using one screw on each end of hanger bar.
Select a proper hole and secure the hanger bars together using flange
screws.
3. ATTACH DAMPER/DUCT CONNECTOR
Snap the damper/duct connector onto the fan housing. The connector
must be flush with the top of the housing, and the damper flap should
fall closed.
TYPES OF TYPICAL INSTALLATIONS
ASSEMBLY INSTRUCTIONS
1. Housing mounted to I-joists (Start at “ASSEMBLY INSTRUCTIONS 1”)
2. Housing mounted to joists (Start at “ASSEMBLY INSTRUCTIONS 1” )
3. Housing mounted to truss (Start at step “ASSEMBLY INSTRUCTIONS 2”)
SCREW
2
HANGER
BAR
