Mendota CHELSEA M-27, Installation And Operating Instructions Manual

Page: 61 / 104

85-03-01120 M27 Page 61
VERTICAL RISE HORIZONTAL TERMINATION
The minimum vertical section required to be connected directly to the starter adapter on this fireplace is 48 inches when used
with a maximum horizontal run of 20 ft. If the total length of the vertical sections connected directly to the starter adapter on
this fireplace is between 4 feet and 41 feet, you are allowed a maximum 20 feet horizontal run.
Combined total length of all pipe sections (include restriction of elbows) in the vent system shall be less than 45 feet.
NOTE: The horizontal run of vent pipe must be level or have a ¼" rise for every 1' of run toward the termination. Never allow
the vent to run downward. This will cause high temperatures and the possibility of a fire.
This M27 Fireplace must be installed by a qualified Mendota service person
1. Position fireplace in desired location. See
3.2.16.5 Exterior Vent Locations and Restrictions
for guidelines on proper vent
cap placement on exterior of home. Check to determine if wall studs are in the way when vent system is attached. If this
is the case, you may want to adjust the fireplace location.
2. Locate where vent pipe will pass through any ceilings and will penetrate the outside wall. Since vent pipe sections
"overlap" we suggest pre-assembling and measuring the total vent pipe run so you can more accurately locate the point
where the vent pipe will penetrate the outside wall. Be sure all vent components are properly twist locked and leak-proof.
3. Cut and frame a 9-1/ /4” wide x 10 -1 /4”” high opening in the outside wall opening (for use with a mandatory wall thimble)
and 9 ” x 9 ” opening in ceiling openings (for use with a mandatory ceiling fire stop). The outside wall hole must be
positioned so the vent system will run level or have a ¼" on rise AND be perpendicular to the wall. The height of the
opening must be located to meet all building codes and not allow the termination to be easily blocked or obstructed. A
ceiling fire stop spacer is required at all floor (ceiling) opening.
4. Connect vent pipe to the fireplace adapter on top of fireplace vent outlet.
5. The horizontal pipe must end flush with the exterior wall of the home.
Horizontal pipe will require a proper support every 3 ft. of vent pipe.
THERE MUST BE A MINIMUM OF 1" CLEARANCE TO COMBUSTIBLES
FROM ALL VENT PIECES ON THE SIDES AND BOTTOM AND 2" ABOVE
HORIZONTAL RUNS.
6. A wall thimble must always be used when penetrating combustible
wall materials and a ceiling fire stop must always be used when
penetrating combustible ceiling materials.
NOTE: Combustible wall thickness must be 4" to 8" maximum.
7. From the exterior of the home, slide the horizontal vent cap over the
end of the horizontal pipe and tightly secure the vent cap to the wall
with screws. Seal with high quality caulking.
NOTE: Venting terminal (Vent Cap) should not be recessed into wall or
siding.
V H
6” 9’6”
12” 16’
2’ 17’
3’ 18’6”
4’- 25’ 20’
For V greater than
25’, see Figure 16
on Page 20