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Installer's Guide
If the roof is flat rather than the normal residential
Pitched roof, refer to Figure 6 for proper clearances.
FLUE/ CHIMNEY/ VENT CONNECTOR
▲
!
CAUTION
PROPER VENTING REQUIRED!
DO NOT install a manual damper in the chimney or
vent connector.
Thermally-activated type vent dampers are NOT AL-
LOWED for use on these furnaces.
It is desirable to install the shortest vent connector
(also referred to as a flue or chimney connector) pos-
sible with the fewest number of fittings, i.e. transitions
and elbows.
Proper chimney termination height for flat roofs.
Generally, 6-inch diameter, 24 Ga. or heavier, single
wall, lock seam-type, galvanized steel vent pipe and fit-
tings are satisfactory materials for the fabrication of a
vent connector.
However, always consult local codes and authorities for
specific minimum requirements.
For some installations, it may be prudent to turn the
furnace flue elbow 90 degrees clockwise, with respect to
the front of the furnace, such that the elbow is open to
the right-hand side of the unit, rather than upward.
Turning the flue elbow may better facilitate connection
of the vent connector piping to the flue elbow on the
highboy. See Figure 7. Due to the presence of the fan
and limit control and the wiring harness, the elbow
may not be rotated 90 degrees counterclockwise.
The installer must remove the upper right hand knock-
out to allow the vent connector to pass through the
cabinet.
If desired, with the furnace flue elbow turned to the
right, the standard furnace top front panel may be
replaced with a BAYTRM10AVENTAA. It includes top
front panel and a vent trim ring. Contact your
distributor to purchase this part.
All horizontal sections of the vent connector must slope
upward not less than
the vent termination. Long horizontal sections of the
14
inch per foot from the furnace to
7
venting system must be supported at least every five (5)
feet with metal straps to prevent sagging of the vent
piping.
6
Secure all joints in the vent connector with sheet metal
screws or equivalent fasteners.
The vent connector pipe should extend only to (and
not beyond) the inside wall of the chimney (See Fig.
8).
A thimble should be used to connect the vent
connector pipe to the chimney so that the vent
connector pipe may be readily removed in case of
inspection or replacement.
Proper insertion of the vent connector in chimney.
In cases where the chimney extends to the basement
floor, the draft can usually be improved by filling the
base of the chimney with sand to within 12 inches of
the vent connector pipe after relocating the clean-out
door. (See Fig. 9).
All joints of the chimney must be tightly sealed. The
inside of the chimney should be free of any
obstructions, such as loose brick, broken pieces of
tile, or corroded metal.
Suggested method to improve chimney draft.
8
9
18-DE01D1-8
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