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INSTALLING OFFSETS
First, review the Offset Elevation Chart and see
Figure 38 for reference.
Step 1. Determine the offset distance where
chimney is to pass through the first ceiling-
dimension "A." To find this point on your
ceiling, first determine the center point for a
vertical chimney following the instructions for
vertical installation.
Measure height to the ceiling from the top of
fireplace-dimension "B." Use the appropriate
Offset Elevation Chart to find dimension "A."
Mark point where you will drive your nail to
show the center point for your offset ceiling
cut.
Step 2. Proceed by using the Straight Up
Installation Instructions for cutting and fram-
ing ceiling and roof openings.
Note: See Framing and Dimension Chart for
the sizes of the ceiling and roof openings. The
size of the roof opening varies with the degree
of pitch of the roof.
Offset Elbow Assembly
Offset elbows install the same as chimney
sections. First, snap the inner section INTO the
preceding inner section of flue. Check connec-
tion by pulling up slightly to ensure a tight fit.
Next, the outer sections snap lock OVER the
preceding outer section of chimney. Again,
check outer section by pulling up slightly to
ensure proper connection is made.
Return Elbow Assembly
Return elbows install the same way as round
terminations and stabilizers:
Step 1. Hold return elbow over top of last
chimney section.
Step 2. Center inner slip section into inner flue
pipe-slip down.
Step 3. Center outer-locking section over outer
chimney pipe. Push down until locking joint has
firmly engaged.
Step 4. Pull up slightly on return elbow to
ensure locking joint has firmly engaged.
Step 5. Secure support straps to framing
members by nailing under tension in sheer
( Figure 39 ).
14
Figure 39
Note: The return elbow assembly performs the
same function as a stabilizer. Consider this
when determining the need for a stabilizer.
Note: Do not apply excessive pressure to any
subsequent chimney section following return
elbow assembly when installing. Ensure that
each subsequent chimney section is securely
attached by testing as noted above.
WARNING: THESE FIREPLACES SHOULD
BE OPERATED ONLY WITH THE DOORS
FULLY CLOSED.
Figure 40
Combustion Air Kit Operation
Use combustion air kit, Model FOAK-6 or
FOAK-6W, with these fireplace systems. Refer
to the installation instructions packed with the
air kit for specific information. Outside air drawn
into the fireplace supplies air to the fire for
combustion. The outside air kit must be in-
stalled before the fireplace is framed and en-
closed in the finished walls ( refer to Steps 5
thru 8, and Figure 17 on page 8 ).
There is a one-hand operated shut-off valve
located in the enclosed corner of the fireplace
opening behind the screen. Refer to label for
directions of operation.
The combustion air damper should be fully
open when the fireplace is in operation and fully
closed when the fireplace is not in use to
prevent outside air from entering your home.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
If additional length of duct is necessary, pur-
chase locally available Class 0 or Class 1 ducting.
The duct may extend up to 50' (15.2 m) in any
direction.
Outside combustion air may be run upwards or
vertically through framing and ceiling joists, with
the hood installed through an outside wall and 3'
Return
(914 mm) below the termination. Ducting may
Elbow
also be run downward through floor joists and
under the home to a ventilated crawlspace not
considered part of the living area of the home.
CAUTION: NEVER LOCATE THE AIR INLET
WHERE IT COULD BE BLOCKED BY SHRUBS,
SNOW DRIFTS, ETC. NEVER LOCATE THE AIR
INLET IN GARAGE OR ANY AREA WHERE THERE
IS ANOTHER FUEL BURNING APPLIANCE OR
PRODUCTS EMITTING COMBUSTIBLE GASES
SUCH AS PAINT, GASOLINE, ETC. IN COLD
CLIMATES, IT IS RECOMMENDED THAT THE
COMBUSTION AIR DUCT BE INSULATED.
Note: Do not terminate combustion air kit in
attic space under any circumstances.
CAUTION: IN NO EVENT MAY THE TOTAL DUCT
FOR BRINGING IN OUTSIDE AIR EXCEED 50'
(15.2 M).
After completing the installation of the com-
bustion air vent system the actuator arm must
be put in service and tested to ensure proper
operation before completing any enclosure
around the firebox. Failure to do so may result
in extensive and costly rework.
Locate the actuator arm along the right side of
the appliance firebox opening and see Figure 41 .
To operate, pull the actuator forward to open
the combustion air door, and push it back to
close. Operate the actuator through several
cycles ensuring proper operation and freedom
of movement. Return the actuator arm to the
closed position.
Push To
Close
Figure 41
Pull To
Open
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