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4 4
Installation Preparation
Prepare the existing solid fuel masonry or factory built
non-combustible firebox for installation.
A. Cleaning
Prior to installing the gas insert:
• Ensure that the woodburning fireplace cavity is clean
and free of ash, soot, and other debris.
B. Flue Damper
Fully lock the solid fuel fireplace's flue damper in the open
position, OR completely remove it.
C. Gas Line
Note: If the factory-built fireplace has no gas access hole
provided, an access hole of 1 inch (25 mm) diameter or
less may be drilled through the lower sides or bottom of the
firebox in a proper workmanship - like manner. This access
hole must be plugged with non-combustible insulation after
the gas supply line has been installed.
• If the gas access hole of the factory-built fireplace is not
accessible or prohibits the installation due to its location,
an access hole may be drilled through the lower side,
back or bottom of firebox.
• The lower sides, back, or bottom is considered the lower
half of the factory-built firebox.
• Install gas line to the factory provided flex line. See
Figure 4.1.
• Check local codes and gas line sizing requirements
following NFPA54. See Section 7.
• It is recommended that extra length of gas line be
installed within the existing wood burner or masonry
fireplace to allow removal of the insert for future servicing
needs.
Figure 4.1
Majestic • TRILLIANT25IN, TRILLIANT30IN, TRILLIANT35IN Installation Manual • 2571-980 Rev. B • 5/23
D. Fireplace Conversion Notice
The fireplace conversion notice is included in the appliance
manual bag. Permanently attach the label with the follow-
ing warning to the inside lower back of the fireplace firebox
into which the insert is being installed. Silicone or mechani-
cal fasteners may be required to properly secure the label.
WARNING! Risk of Fire! This fireplace has been con-
verted for use with a gas fireplace insert only and cannot
be used for burning wood or solid fuels unless all original
parts have been replaced, and the fireplace re-approved
by the authority having jurisdiction.
E. Electrical Outlet Box
An outlet box may be installed in a bottom back corner of
the existing solid fuel masonry or factory-built fireplace
to power the appliance. Each unit ships standard with a
cord assembly to permit blowers or other optional acces-
sories to be used. The accessories plug into the new out-
let box or may be routed out onto the hearth to a nearby
outlet.
NOTICE: DO NOT wire 110-120 VAC to wall switch.
RECOMMENDED
ELECTRICAL OUTLET LOCATIONS
APPLIANCE
Figure 4.2 Electrical Outlet Detail
Appliance Cord Length (approximate)
Appliance Size
Left Side
25 in.
10 ft. 6 in.
30 in.
10 ft. 3 in.
35 in.
Right Side
8 ft.
7 ft. 6 in.
10 ft.
7 ft.
21
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