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6
DUCT INSTALLATION
CONNECTING THE DUCTS TO THE FAA
EXHAUST TO
OUTDOOR HOOD
Do not handle unit by
the collars / collar
openings to avoid
damaging the collars
& foam insulation.
INSTALLING DUCT TO FAA
Position a 12" (300mm) section of nonmetallic flexible duct onto duct collar.
Using (1) cable tie, attach flexible ducting with the correct FAA duct collar.
SUPPLY AIR GRILLES LOCATION
Without a forced air system: fresh air should be supplied to all habitable rooms
from high wall or ceiling locations. Grilles that diffuse the air comfortably are recom-
mended.
With a forced air system: Connect to the system's ductwork.
EXHAUST AIR GRILLE'S LOCATION
Draw stale air from the points where the worst air quality problems occur: bathroom,
kitchen, and laundry room. Additional return air ducts from strategic locations may
be installed. The forced air system return duct may also be used to exhaust from. In
this method, the exhaust air is not ducted back from bathrooms, kitchens, etc to the
FAA with "dedicated lines".
As per building codes and installation requirements for combustion
appliances: Air return ducts, or openings for air return, should not be
placed in enclosed spaces containing combustion appliances that are
subject to spillage.
FRESH OUTDOOR
STALE AIR
AIR INTAKE
FROM HOME
FRESH AIR
• Ducts should be kept short and have as
TO HOME
few bends or elbows as possible.
• 45º elbows are preferable to 90º.
• Use "Y" ducts instead of "T" ducts
whenever possible.
• All duct joints must be fastened with
screws or duct sealant and wrapped
with aluminum foil duct tape to prevent
leakage.
• Galvanized ducting from the FAA
to the living areas in the house is
recommended whenever possible.
• The main supply and return line to/from
the FAA must have the same diameter
as the duct connection or larger.
• Branch lines to the individual rooms may
be as small as 100mm (4'').
INSTALLING
THE DRAIN
Install the drain hose making a
"P" trap, secure the condensate
line drain to FAA by sliding into
connection. Fill the condensate line
with water.
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