5
If your installation has been roughed-in (including
ductwork and wiring), be certain there are no obstructions
in the way of the mounting, pipes, or other wiring, etc.
If the installation has not been roughed in, check what is
needed to create the framing and mounting hardware
(allthreads, nuts, etc.). Be sure the location will not
interfere with wiring, other utilities, or structural
considerations.
1. Use 2x4s, Unistrut or Angle Iron, to construct the
framing. The considerable weight of the hood makes
this necessary.
2. Mark the center location of the hood. Install two
2x4s (wide side down), Unistrut or Angle Iron, across
ceiling joists with outer edges aligned with the existing
ceiling joist.
3. Drill two 7/16” diameter holes in the 2x4s, Unitstrut
or Angle Iron, the same distance apart as the nuts in
the top of the hood,plus the finished drywall thickness.
This ensures the hood is tightly fitted against the wall.
Install wooden spacers if necessary to ensure the top
of the hood is flush with the ceiling.
4. Insert all four of the allthread bolts into the top of
the hood. (Approximately 3”)
5. While lifting the hood, guide and position the
allthread bolts through the 2x4s, Unistrut or Angle
Iron. (At least 2 peopleare recommended for this
step.)
6. Secure the hood with 3/8” nuts (do not tighten).
7. Adjust hood to proper location and tighten nuts. A
second nut should be used as a locknut to prevent
vibration and ensure stability.
8. Connect the duct to hood using 3 sheet metal
screws and seal all joints with silicone or duct tape.
Use care when fastening ductwork to transition.
Position screws such that damper assembly can open
and close.
9. Make electrical connections.(An electrical
contractor should make all electrical connections. See
wiring diagram.)
Method 1: Ventilation Hood - Ceiling Mounted
There are several different methods available to
mount the hood: The Ceiling Mount, The Wall Mount
and the Rough-In Plate Mount.
For installation questions, Please dial:
1-877-650-5775
Installation Methods
Check the Installation Location
Choose the Installation Method
2x4s or unistruts
hood
duct
attachment
allthread bolts
Top view
existing ceiling joists