3. INSTALL THE UNIT (CONT’D)
3.7 EXTERIOR OPENING(S) INSTALLATION (CONT’D)
3.7.3 CONNECTING INSULATED DUCTS TO 2 EXTERIOR HOODS
1. For each exterior hood, using a jig saw, cut a 6’’ diameter hole in the exterior wall.
Run each flexible duct through its respective hole in the wall.
2. For each exterior hood, pull back the
insulation to expose the flexible duct and,
using a tie wrap, attach it to the inner ring
of the exterior backplate. Carefully seal
with duct tape (A). Pull the insulation over
the joint. Pull the vapor barrier over the
insulation and over the outer ring of the
exterior backplate. Gently apply duct tape
to the joint making an airtight seal (B).
3. Attach the exterior backplate to the exterior
wall. Using four provided screws, fix it to
the wall. Seal the backplate with caulking,
as shown beside.
4. Snap each assembled exterior hood on its respective backplate location and
secure each of them with their 2 provided screws.
16
CAUTION
Make sure the insulated ductwork vapor barrier does not tear during
installation.
CAUTION
The exterior backplate must be installed with the word “TOP” pointing
upward.
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