Hearth and Home Technologies GATEWAY - Manual (Page 22)

Heat & Glo • Gateway • 288-900 Rev. W • 10/08 22
A. Installing Outside Air Kit Damper
Assembly
Asphyxiation Risk.
Fire Risk.
Do NOT draw outside combustion air from:
• Wall, fl oor or ceiling cavity.
• Enclosed space such as an attic or garage.
• Close proximity to exhaust vents or chimneys.
Fumes or odor may result.
B. Gas and Electrical Connections
If applicable, ensure that gas and electrical connections are
installed at this time. Refer to Sections 9 (Gas Information)
and 10 (Electrical Information).
7 7
Appliance Preparation
CAUTION
Sharp Edges
• Wear protective gloves and safety
glasses during installation.
WARNING
This unit is equipped to accept outside air. It is recom-
mended that an AK-TV air kit be used with this appli-
ance. By using outside make-up air, the amount of room
air used for combustion will be reduced. However, in a
negative pressure condition the outside air kit MUST be
installed to obtain proper performance and to help pre-
vent spillage of combustion gases.
A 4-inch side collar/damper (found in AK-TV Kit) must be
installed on the fi replace by attaching the side collar to
the outer wrap of the fi replace at the right-hand rear cor-
ner using sheetmetal screws. Attach damper handle (ex-
tended handle found in manual bag) to the damper door
prior to attaching door to outer wrap. Then lift the handle
into the notch under the fi replace. See Figure 7.2. Attach
one end of a 4-inch fl exible air duct (not provided in the
AK-TV Kit) to the side collar and the other end of the duct
to the make-up air termination cap. Use plastic tie straps
to secure the ends of the fl ex duct to each collar.
WARNING: when terminating the venting horizontally the
make-up air termination must be at a lower elevation than
the exhaust termination.
Figure 7.1 Make-up Air
EXHAUST
COLLAR
AK-TV
AIR DAMPER
ASSEMBLY
Figure 7.2 Make-up Air Handle
HANDLE
NOTCH
Note: Pull handle to open damper. Push handle to close
damper.