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3-89-574205_R4 • 07/19
The new finished height of the fireplace floor should be level
with the hearth. If the fireplace floor is too low, the installer
can only use non-combustible materials to raise the stove
mounting frame. Any shimming needs to be positioned
beneath the frame leveling bolt areas.
Attach the wings along with flue tailpipe and gasket
(and outside air, if used) onto insert mounting frame and
temporarily install into opening. Lay the ash lip onto the
frame rails to confirm proper hearth height. If the ash lip
to hearth clearance needs set or Insert frame needs
leveled, install leveling bolts into frame floor and correct as
necessary.
When mounting is correct, the insert mounting frame should
be secured through the floor by using lag bolts or screws.
Figure 1 Remove the ash lip and connect the flue, (along
with outside air pipe, if used) to their tailpipes. Type PL vent,
type L vent, and flex pipe approved for pellet stoves are
allowed for this installation. Flex pipe may only be used on
the flue if running vertically.
The flue pipe may stop one foot inside the existing chimney
and be sealed with non-combustible materials. It is preferred
that the flue runs to the top of the existing chimney to help
avoid possible performance issues.
Levelling Bolts
Frame Mounting Bolts
Figure 1
Alternate venting method and outside air connection
The Harman direct vent wall pass thru may be used to vent
the Accentra 52i directly outside if the zero clearance unit
is located on an exterior wall. Installation will require using
zero clearance kit #1-00-574205 along with the direct vent
wall pass thru kit (1-00-677177) and the 3” stub pipe kit (1-
00-674039) for 3” pellet pipe.
The Insert will need an outside air kit (1-00-574350) installed
to finish the connection.
The thickness from the firebox inner wall to the surface of the
exterior wall may not be under 4-1/2” or go above 10-5/8”.
This is the range the direct vent wall pass thru is designed
to fit. Flexible flue pipe may not be used with the direct vent
wall pass thru. Only PL vent with 3” or less clearance rating
is allowed.
The existing chimney on the zero clearance cabinet must
be sealed if using the direct vent wall pass thru.
Connecting only outside air through rear of cabinet
The exhaust venting may be run through the existing flue
with the outside air being routed through the back wall of the
zero clearance cabinet. The air pipe must be sealed where
it passes through the cabinet and the outer wall. A flexible
pipe suitable for the connection is available through your
Harman dealer.
An inlet cover for the pipe is required to keep birds, rodents,
etc. out of the airway. This is available from your Harman
dealer (1-10-09542).
The Insert will need an outside air kit (1-00-574350) installed
to finish the connection.
When installing an electrical box inside the cabinet, it may
be done on the left front corner only, beside the Insert
mounting frame and near the opening of the zero clearance
cabinet. Figure 2.
The installer can only use a metal handy box with a metal
receptacle cover. The power line must be installed according
to any local electrical codes where piercing through cabinet
walls is required. The power line shall enter the left side
within 6” of the opening and the cabinet floor and go into
the handy box. It can also run from the right side of the
cabinet within 6” of the opening and the cabinet floor. It must
be ty-wrapped and routed over the top of the Insert frame,
following the original Insert cord mounting. The power line
and the Insert cord may not be run around the back of the
Zero Clearance cabinet or Insert mounting frame. The stove
cord must be ty-wrapped and secured near the handy box.
Be sure to follow all local electrical codes.
Handy box
Location
Powerline entrance
area within 6” of
opening
Powerline entrance
area within 6” of
opening
Receptical faces rear of cabinet.
Powerline must follow any codes when piercing through cabinet wall(s) and at
handy box.
Powerline and stove cord must be protected from sharp edges and may not run
behind stove.
Figure 2
