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Installation Preparation
Existing Fireplace Preparation
A few points must be considered before inserting
the 785 into an existing fi replace cavity. Generally, no
modifi cations are allowed to the existing fi replace that
will compromise the integrity of the existing fi replace.
Components that are bolted or screwed on such as
dampers or baffl es may be removed to accommodate
the installation of the 785 engine.
Cutting away any sheet metal parts of the existing
fi replace to accommodate the installation of the 785
is prohibited.
Check with local authorities if in doubt.
Clean Fireplace and Chimney
Have the chimney swept and the fi replace cavity
including ash dumps and clean-outs cleaned before
installing the 785 heater and vent liners. Any creosote
or soot residue remaining in the fi replace cavity
chimney or clean-out may cause odors or stains once
the 785 insert is installed. Consult with chimney sweep
for information on how best to clean.
Existing Dampers
Factory-built, zero-clearance fi replaces will require
the damper to be removed in order to install the vent
liners. These dampers are usually bolted into place.
Dampers in masonry fi replaces must be fi xed open and
may remain in place.
Ash Retaining Curbs
Some fi replaces (particularly factory-built) have a
raised curb at the front edge to retain ashes. Check the
dimensions carefully to ensure the 785 engine will fi t
behind any raised curb (some curbs may be removed
separately from the refractory base).
Gas Line Routing
Plan the routing of the gas line before proceeding.
Utilize the existing hole for the gas line of the factory-
built fi replace.
If the fi replace has no access hole, carefully drill an
access hole of 1.5 inch (38 mm) or less through the
lower sides or bottom of the fi rebox. The access hole
must be plugged with non-combustible insulation after
the gas supply line has been installed.
See Dimensions section for detailed location of gas inlet.
Also, take into consideration whether or not a fan or
shut-off valve will interfere when planning routing of
the gas line.
14
Existing Glass Doors and Wire Screens
Existing glass doors must be permanently removed
prior to installing the 785 insert.
Combustible Mantels
Combustible mantel clearances must conform to those
required for the original solid-fuel fi replace into which
the 785 is being installed.
Attach Warning Conversion Plate to Existing
Fireplace
(Label supplied loose with 785 heater)
Attach the "This fi replace has been converted..." label to
the existing fi replace using screws or other mechanical
means and store any removed parts in back of the
existing fi replace for future use.
Unpack the Appliance
WARNING
Beware of sharp edges! Wear gloves!
1. Unpack the appliance.
2. Unpack any loose items from around the appliance
and check against the Pack Content list provided in
the documentation package.
3. Remove the window and set aside in a safe place to
avoid damage—see next page.
4. Verify that you have all the components required for
the installation, including:
•
liner panels
•
fuel bed
•
trim
•
venting components and accessories
•
fan and electrical components for its installation
(if used)
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