8
Merrimack Large Insert
30004671
Installing the Merrimack Large Insert
1. Remove or Disable the Fireplace Damper.
If codes al-
low, remove the damper. Many dampers can be removed
simply by removing a cotter pin and/or a set screw.
If it is not permissible or possible to remove the damper,
secure the damper in the fully open position.
~ NoTe: caNaDIaN INSTaLLaTIoNS ~
In accordance with caN/cSa b365-M91, you must
permanently secure the Fireplace Modification Tag to
the rear of the fireplace cavity
if you have modified the
fireplace in any way to accommodate installation of a
fireplace insert.
This tag is in the hardware bag included
with your Insert.
2. Flue collar orientation:
The flue collar may be oriented
in the vertical position or rotated 180 degrees on the top
of the stove resulting in a 6 degree backward angle. If
possible, determine beforehand which orientation will
work best for your application.
In most applications, cleaning of the chimney system will
be easiest from the top (chimney cap) down. If this is the
planned method for your application, the center iron pull
down handle on the flue collar serves as protection to
prevent a chimney brush from damaging the baffle inside
the stove. If cleaning can only take place from inside the
home, the center bar may be cut out of the flue collar using
a hack saw or reciprocating metal cutting saw.
3.
Install the venting system:
Again, depending on your
application it may be easiest to install the connector or
stainless steel flue liner in the chimney first. Refer to
Figure 6 for the components of the venting system.
•
Carefully remove the fiber baffle by first removing
the front air wash manifold. If necessary, remove the
air tubes to allow easier access.
•
Remove the iron flue collar from the stove and fasten
either the adapter pipe or flue liner to it by drilling
three holes using the holes in the iron collar as a
guide.
•
Secure the flexible pipe to the pipe adaptor using
the same method.
•
Install the connector pipe or liner so that the height
measured from the finished hearth surface to the
center bar of the flue collar is 0
¹\₂
” (51 mm). (Fig.
7) This will allow an easy connection once the stove
is rolled into place.
4. Route the blower power cord.
Run the power cord
out the left or right side of the insert. Remove the two
() louvre doors (Fig. 9) or access doors. Remove the
screw and washer from each side holding the ashlip
to the front. If you run the power cord out the left side,
remove the two () screws holding the rheostat bracket
to the fan housing. Insert grommet nearest fan in the slot
on the fan housing, left or right side. Reattach rheostat
bracket with the two () screws removed earlier. Remove
the cover plate and insert the provided grommet into
the slot. Reattach the cover plate.
5. Install Mantel and access Door.
Remove the prepack-
aged mantel and install the two () brackets to under-
side of mantel using four (4) 1/4-0 Philips head black
screws as shown in Figure 8. Brackets and screws can
be found in the hardware bag located inside the unit.
Unwrap the two () pre-assembled access doors and
snap into place. If the spacing between the doors and
upper lattice is not even, you can pull the doors mantel
off and adjust the upper lattice. Screw the two () jack-
ing screws that contact the front up or down as needed.
(Fig. 9)
6. Install the optional Surround kit.
Follow the instruc-
tions provided with the kit.
7. Roll the Firebox into position.
At least two people will
be needed to move the firebox. To ease installation, lift
the front of the stove slightly to put weight on the rear
wheels. Position the firebox so the flue collar aligns with
34
6ENTSYSTEMCOMPONENTS
ST100
Fig. 6
Components of the venting system.
Flexible Flue Liner
Flex Liner Adapter
(if required)
Adjustable (6” or verti-
cal) Flue Collar w/Inte-
grated Draw-Down Bar
Top of the Insert Around
Flue Opening
Washers 1/4 Dia.
1/4-0 Hex Nuts
ST493
Fig. 7
Measured height from the finished hearth surface to
the center bar of the flue collar.
20
56O
”
(521 mm)
Ref. 26”
ST2493
finished height
7/09
Possible
Handle Bracket
Locations
Mantel
Access
Door
