3. INSTALL THE UNIT (CONT’D)
3.7 EXTERIOR OPENING(S) INSTALLATION (CONT’D)
3.7.4 LOCATING 2 SOFFIT GRILLES
• Do not locate where prevailing winds
blow the stale air towards the fresh
air vent.
• There must be a minimum distance
of 6 feet (1.8 m) between the grilles
to avoid cross-contamination. See
illustration beside.
17
CAUTION
Make sure the insulated ductwork vapor barrier does not tear during
installation.
3.7.5 CONNECTING INSULATED DUCTS TO 2 SOFFIT GRILLES
1. For each exterior hole, using a jig saw, cut a
4¼’’ diameter hole in the soffit. Pull back the
insulation to expose the flexible duct. Run each
flexible duct through its respective hole.
2. Using provided screws, attach the flexible duct
to the ring of the soffit grille. Carefully seal with
duct tape. Assemble the soffit grilles to the
soffit.
WARNING
Make sure the air intake grille is at least 6 feet (1.8 m) away (or more, as per
applicable building codes or standards) from sources of contamination
such as:
• High efficiency furnace vent
• Any exhaust from a combustion source
• Gas meter exhaust, gas barbecue-grill
• Garbage bin
If this unit is installed in the attic, use the installation kit no. EA20130 (not available in the
U.S.A.). Choose an appropriate location for installing the soffit grilles (included in the
installation kit no. EA20130).
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