The harman Accentra Pellet Insert

Installation & Operating Manual
The Harman Accentra Pellet Insert
This Fireplace insert may be installed into a masonry
fireplace, an approved manufactured wood burning fireplace
(see page 25), Or, It may be built in to a wall or mantle system
when using the optional zero clearance cabinet (see page 26).
“Ce manuel est disponible en Français sur demande”
R15
SAFETY NOTICE
Please read this entire manual before you install and use your new room heater. Failure
to follow instructions may result in property damage, bodily injury, or even death.
FOR USE IN THE U.S. AND CANADA. SUITABLE FOR INSTALLATION IN MOBILE HOMES
IF THIS appliance IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY RESULT. FOR YOUR SAFETY, FOLLOW
INSTALLATION DIRECTIONS. do not use makeshift compromises.
CONTACT LOCAL BUILDING OR FIRE OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION INSPECTION
REQUIREMENTS IN YOUR AREA.
Contact your local authority (such as municipal building department, fire department, fire
prevention bureau, etc.) to determine the need for a permit.
Cette guide d'utilisation est disponible en francais. Chez votre concessionnaire de
Harman.
save these instructions.
Item# 3-90-00674
P
M
E
L
FOR USE WITH PELLETIZED WOOD FUEL OR UP TO A 50%
CORN AND PELLET MIXTURE ONLY.
A
S
HEARTH & HOME TECHNOLOGIES
09-3178
Introduction
The Accentra Pellet Insert will give you more heat, better temperature control and a level of convenience you won’t find in any other
pellet burning insert. The Accentra Insert’s many outstanding features make it the best value pellet insert on the market today.
The Accentra’s versatile design lets you convert a heat wasting fireplace into an efficient heating source. The Accentra Insert could also
be a fireplace hearth for your home that doesn’t require a chimney. A special zero clearance fireplace kit converts the Accentra insert
into a fireplace that can be placed in virtually any corner or against any wall of your home.
The Accentra’s on-board microprocessor constantly senses room temperature and automatically makes adjustments in the feed rate and
air supply so you get just the right amount of heat 24 hours a day. This remarkable technology lets you fill the hopper, set the desired
temperature and walk away. The Accentra insert lights automatically, brings the room up to the exact temperature and will turn off if
no heat is required. No other pellet insert offers such accurate and trouble free temperature control. The control technology gives you
the widest heat output range of any insert on the market making it an ideal choice to take the chill off in the spring and fall and to heat
your home during the coldest months of the winter.
As with all Harman pellet stoves, maintenance is minimal and cleaning is easy. The Accentra Insert lets you burn close to a ton of pellets
before ash removal is needed. And what is even better, the Harman Insert Track System lets you slide the insert out of the fireplace so
that it can be cleaned or serviced without having to disconnect the venting system. This innovative design is only available on Harman
pellet inserts and lets you easily reach key components for cleaning.
Please copy your serial
number from the label
on your stove to the box
below.
Hearth & Home Technologies, Inc.
352 Mountain House Road
Halifax, PA 17032
www.harmanstoves.com
FOR USE WITH PELLETIZED WOOD FUEL OR UP TO A 50%
CORN AND PELLET MIXTURE ONLY.
HEARTH & HOME TECHNOLOGIES
09-3178
Appliance Certification.
Model: Accentra Insert
Test Lab: Omni-Test Laboratories
Type: Pellet Burning Fireplace Insert / Room Heater
Standard(s): ASTM E1509-04, ULC S628-93 and
ULC C1482-M1990. In accordance with OAR 81423-900 through 814-23-909
Note: This appliance is also approved for
installation into a shop.
Table of Contents
Automatic Operation
4
Manual Operation
6
ESP Control
8
Assembly & Installation 9
Venting
21
Maintenance
28
Trouble-Shooting
33
Specifications
34
Wiring Diagram
35
Warranty
36
Service Parts List
38
Corn / Pellet Mixture
46
Automatic Start Up
Starting First Fire
See Note 7.
1"
Fig. 1
Fig. 2
1. Fines are small pieces of broken pellets (sawdust). Fines do
not flow easily and often build up on the hopper funnel bottom
angles. These fines can be pushed into the feeder opening and
then fill the hopper with pellets. As the system works, they will
be burned.
2. The "TEST" cycle will operate the feed motor for exactly one
minute. Turning to "TEST" again and again may load too much
fuel into the burn pot causing excessive smoke on start-up.
3. The firebox low pressure switch will not allow the auger motor
or the igniter element to operate if the view door is open.
4. Adjust Feed Rate. If this is your first fire or you are trying
different pellets, set the feed adjuster to #4, Fig. 1. This is a
conservative number and will probably need to be increased.
After you know a feed rate setting that works well, use that
setting. Remember, if your feed rate is too high you may waste
fuel.
5. This is usually a weekly maintenance procedure. Cleaning
the burn pot with the scraper with a small amount of new fuel
in the bottom is not a problem. First, scrape the ashes off the
front of the burn pot into the ash pan. Then scrape the holed
surface downward into the burn pot. When the stove feeds, these
scrapings will be pushed out by the feeder.
6. The ash pan can hold the ashes from approximately 1 ton of
premium fuel. This means the ashes will only need to be emptied
a few times a year.
7. Setting the feed adjuster # for maximum burn: With the unit
burning in "AUTO", turn to "Stove Mode" and put the fan on
"H". Set the Temperature Dial to #7. Allow the unit to burn for
about 30 minutes and check ash on front of burn pot. Fig. 2.
If the ash line is larger than 1", turn the feed adjuster from #4
to #5. Allow another 30 minutes of burn time and check again.
If, at #6 setting, a 1" or less ash bed is not obtainable, it is not
a problem. The 1" ash bed is only at maximum burn rate and
during normal operation, the ash bed will be larger.
Igniter Switch to "AUTO" (up position)
Make sure the unit is plugged into a properly
grounded, 120 VAC, 60 Hz electrical source. The
power light should be the only light lit.
Note: Be sure there is no fuel or other
combustibles in the ash pan prior to lighting.
1. Turn Mode Selector to "OFF".
2. Fill hopper with pellets.1
3. Clean burn pot with scraper, if necessary.5
4. If starting after an empty hopper, turn Feed
Adjuster to "TEST" (for one 60 second cycle).2 This
will flow pellets into the auger tube and also allow
you to check the motors for operation. NOTE: The
auger motor will not operate with the view door
or hopper lid open.3
5. Turn Feed Adjuster to #4.4
6. Flip the Igniter Switch up into the "AUTO"
position.
7. Turn the Temperature Dial to the desired room
temperature.
8. Turn Mode Selector to Room Temperature or
Stove Temperature.
9. Fill hopper with pellets and remove ashes as
required.6
Keep the hopper lid and firebox doors closed while
in operation. Maintain door seals in good condition.
Failure to do so will affect operation of the appliance
and may permit escape of smoke or gases into the
living space.
Warning
Burning garbage, use of improper fuels,
fire starters or altering the stove For
higher heat output may cause damage to
the stove And could result in a House
fire. Use only approved fuels And follow
only these operation guidelines.
Warning
NEVER USE GASOLINE, GASOLINE-TYPE
LANTERN FUEL, KEROSENE, CHARCOAL
LIGHTER FLUID, OR SIMILAR LIQUIDS TO START
OR 'FRESHEN UP' A FIRE IN THIS HEATER. KEEP
ALL SUCH LIQUIDS WELL AWAY FROM THE
HEATER, WHILE IN USE.
Automatic Ignition/Operation
The Accentra Insert is more than just automatic ignition, it is also automatic temperature
control. The automatic system will allow the fire size to be adjusted to match the
heating needs and even put the fire out if necessary. If heat is needed after the fire is
out, the Accentra Insert will automatically re-ignite and adjust the fire size to match the
heating need. The totally automatic room sensor mode is recommended because of its
efficiency. The unit can be switched between "AUTO" and "MANUAL" at any time during
operation.
Fig. 3
Room Temperature Mode: This setting will produce a room temperature
of 70 degrees with the distribution blower at medium speed.
Stove Temperature Mode
This setting will produce medium heat with the
distribution blower on "low".
This setting will produce continuous maximum heat
output with the distribution blower at full speed.
Fig. 4
Igniter switch to "AUTO"
Room Temperature Mode
In "Room Temp Mode" heat output is controlled automatically by the Room Sensing Probe. When the Room
Sensing Probe calls for heat, the stove will increase output. When the Room Sensing Probe is getting close to
the set temperature, the stove will begin to level off output
and keep the fire burning at just the right temperature to
maintain that setting.
High output is determined by the feed rate setting. This
setting, generally on #4, can be increased if higher burn
rates are necessary (Fig. 1). The unit's maximum burn
rate should not create less than 1" of ash on the burn
pot front edge(See Fig.2). Overfeeding is not a safety
concern, but fuel may be wasted if unburned pellets fall
into the ash pan.
In "Room Temp Mode" a constant fuel consumption
rate is sacrificed for exact room temperature. Therefore,
as it gets colder more pellets will be burned automatically.
The distribution blower speed will vary according to the
position of the mode selector pointer, and fire size.
Igniter switch to "AUTO"
Stove Temperature Mode
This allows for automatic ignition upon start-up only.
The unit can then be set at any desired setting. The
heat output and fuel consumption will remain constant
regardless of room temperature (See Fig 4). The unit's
maximum feed rate should not create less than 1" of ash
on the burn pot front edge. See Fig 2.
The unit's low burn or maintenance setting is as low
as it will go. It will not go out unless it runs out of fuel or
is turned off.
Shut-Down Procedure
To kill the fire or stop burning the stove, turn the Mode
Selector to "OFF". This will cause the fire to diminish and
burn out. When the fire burns out and the stove cools
down everything will stop.
If you pull the plug to shut down the stove, all motors
will stop. This may cause incomplete combustion and
smoke in the firebox. If the load door is opened, the
smoke may escape.
The best way to shut down the stove is simply let it
run out of pellets, then the stove will shut down automatically.
Manual Start Up
Starting First Fire
Igniter Switch to "MANUAL" (down position)
Fig. 6
Fig. 5
See Note 7.
1"
Make sure the unit is plugged into a 120 VAC, 60 HZ
electrical source. The power light should be the only
light lit.
NOTE: Be sure there is no fuel or other combustibles
in the ash pan prior to lighting.
1. Turn FEED ADJUSTER to desired feed rate. No. 4 is
good for most pellets.4
2. Turn the Mode Selector to “OFF” and then to
the desired mode. This will reset control and start
the combustion motor.
3. Turn the Temperature Dial to the desired setting.
4. Clean burn pot with scraper if necessary.5
Fig. 7
1. Fines are small pieces of broken pellets (sawdust). Fines do
not flow easily and often build up on the hopper funnel bottom
angles. These fines can be pushed into the feeder opening
and then fill the hopper with pellets. As the system works, they
will be burned.
2. The "TEST" cycle will operate the feeder motor for exactly one
minute. Turning to "TEST" again and again may load too much
fuel into the burn pot causing excessive smoke on start-up.
3. The firebox low pressure switch will not allow the auger motor
or the igniter element to operate if the view door or the hopper
lid are open.
4. Adjust Feed Rate. If this is your first fire or you are trying
different pellets, set the feed adjuster to #4, Fig. 5. This is a
conservative number and will probably need to be increased.
After you know a feed rate setting that works well, use that
setting. Remember, if your feed rate is too high you may waste
fuel.
5. This is usually a weekly maintenance procedure. Cleaning
the burn pot with the scraper with a small amount of new fuel
in the bottom is not a problem. First, scrape the ashes off the
front of the burn pot into the ash pan. Then scrape the holed
surface downward into the burn pot. When the stove is ignited
these scrapings will be pushed out by the feeder.
6. The ash pan can hold the ashes from approximately 1 ton
of premium fuel. This means the ashes will only need to be
emptied a few times a year.
7. Setting the feed adjuster # for maximum burn: With the unit
burning in "AUTO", turn to "Stove Mode" and put the fan on
"H". Set the Temperature Dial to #7. Allow the unit to burn for
about 30 minutes and check ash on front of burn pot. Fig. 9. If
the ash line is larger than 1", turn the feed adjuster from #4 to
#5. Allow another 30 minutes of burn time and check again. If
, at #6 setting, a 1" or less ash bed is not obtainable, it is not
a problem. The 1" ash bed is only at maximum burn rate and
during normal operation, the ash bed will be larger.
5. Fill burn pot with pellets, only level with front edge.
(Do Not Over Fill).
6. Add starting gel on top of the pellets. Stir gel into pellets for fast lighting.
7. Light starting gel with a match, and close the door.
Operation will begin when the fire reaches the proper
temperature.3
8. Fill hopper with pellets and remove ashes as required.1, 6
Store fuel in a dry area, away from all ignition
sources and outside all limits of the stove's clearance
requirements to combustibles. Do not store the fuel were
it interferes with the refueling of the stove or emptying of
ashes. Do not store any ashes removed from the stove
near the fuel or other combustible materials.
Warning
Burning garbage, use of improper fuels,
fire starters or altering the stove For
higher heat output may cause damage to
the stove And could result in a House
fire. Use only approved fuels And follow
only these operation guidelines.
Warning
NEVER USE GASOLINE, GASOLINE-TYPE LANTERN
FUEL, KEROSENE, CHARCOAL LIGHTER FLUID,
OR SIMILAR LIQUIDS TO START OR 'FRESHEN UP'
A FIRE IN THIS HEATER. KEEP ALL SUCH LIQUIDS
WELL AWAY FROM THE HEATER WHILE IN USE.
Manual Ignition/Operation
The Accentra Insert is capable of manual operation. This also allows the operator
to manually control operation during an emergency (i.e. igniter failure, when using a
502H battery backup, or when using certain generators.)
The unit can be switched between "AUTO" and "MANUAL" at any time during
operation.
NOTE: When starting the unit in the "AUTO" mode
and switching to "MANUAL", you may switch at
any time. Once an ignition cycle is started, it will
continue regardless of mode.
Fig. 8
Room Temperature Mode: This setting will produce a room temperature
of 70 degrees with the distribution blower at medium speed.
Manual Stove Temperature Mode
This setting will produce a large viewing fire without a
distribution blower operating.
Fig. 9
Igniter Switch to "MANUAL"
Room Temperature Mode
The fire will have to be lit with starting gel and a
match, or started automatically, see "Automatic Operation". Turn to "Manual" position once the start cycle
begins.
The difference between "AUTO" Room Temperature
Mode and "Manual" Room Temperature Mode is that
the fire will not go out as the room temperature goes
above the control board setting. The unit can only go to
low burn and will remain there until it runs out of fuel or
until more heat is needed and the feed rate increases.
Feed rate adjustments and dial settings are the same
as "AUTO" settings.
Igniter Switch to "MANUAL"
Stove Temperature Mode
The advantage of this mode is to allow the operator
to have a large viewing fire without blowing extra heat
into the room.
During operation, with the temperature dial set at #4
or less, the distribution fan will not operate. A #4 on the
temperature dial and a #4 on the feed adjuster is approximately 80% output. It is not necessary to operate
the distribution blower below this point. Therefore, there
can be a higher feed rate ( a larger viewing fire) without
an excess of hot air blowing into the room.
An example of when to use the Manual Stove Temperature Mode is if you want to watch a large fire and
the room is already up to temperature. The Stove
Temperature Mode allows you to have a larger fire and
a lower sound level, without the distribution blower.
NOTE: During the use of this mode, if you keep
increasing the temperature dial setting to increase
the fire size, the distribution blower will automatically come on when the ESP Temperature reaches
350o F, or 81% output.
ESP Control
Power Light
Indicates power to the
control.
Feed adjuster
Sets the maximum
feed rate
Test
Runs all motors at
full speed for one
minute to check
operation. After two
minutes the stove will
go to minimum burn
and the blowers will
alternate from high
to low every minute
to remind you that
you are still in "Test
Mode".
Status Light
Will be lit in either stove
or room temp mode
when pointer is not
within off position band
except after normal shut
down. Blinks to indicate
errors listed below.
Indicates power to
distribution blower.
Igniter switch
Set to appropriate
Start-Up mode.
Distribution Blower speed
adjustment range.
L = low
H = high
Variable speed anywhere
between L and H;
although as the stove
temp. goes up , so does
the L and H scale.
Indicates power to
combustion blower
Indicates power to the
feed motor.
Indicates igniter is on.
Temp dial
Allows you to adjust the room temperature setting, in Room
Temp Mode, using the outer scale marked in degrees
Fahrenheit. It also allows you to adjust the stove temperature
setting, while in Stove Temp Mode, using the inner scale
marked from 1 to 7.
Status light error messages:
3 Blinks: Indicates that the ESP (Exhaust Sensing
Probe) has failed, has a broken connection, or has
gone out of range too many times. This requires a
manual reset*.
4 Blinks: Can occur only in Room Temp Mode and
indicates Room Sensing Probe failed or not installed.
If a Room Sensing Probe is then installed, the status
light will automatically reset.
NOTE: Unit will not start in "AUTO" with this status
error.
5 Blinks (In Igniter Auto. Mode Only): Indicates that
the unit has failed to light within the 36 minute start
cycle. To reset - Turn Mode Selector to "OFF", then turn
to either mode again.)
Dealer Diagnostic Port
For dealer maintenance
only. Requires special DDM
monitor supplied to Harman
Dealers exclusively.
Mode Selector
Allows you to choose
between Room Temp Mode,
Stove Temp Mode, or OFF.
Also allows you to vary the
distribution blower speed by
turning the knob to the high
or low side of each mode.
6 Blinks : Indicates that the control has calculated poor
or incomplete combustion occurring for more than 50
minutes.
A six blink status may be set if the stove is allowed to
run out of pellets. To reset, turn mode selector to "OFF"
then back on to the desired mode. If the unit was not
out of pellets, see Troubleshooting section, Page 33,
for more details.
* Manual reset- disconnect power cord for a few seconds
and reconnect. If error still occurs call your Dealer.
Installation
How to Reduce the Weight for Installation
1. Remove the top/lid assembly and side panels.
• Note: Removal of the cast hopper lid itself is not
necessary or recommended.
• Note: The hopper lid must be in the "OPEN" position
before the top/lid assembly can be lifted off or reinstalled
on the stove body.
• There are (4) 1/4-20 x 1/2" flange head bolts securing
the top/lid assembly to the stove body. They can be
removed from the underside with a 3/8" socket.
Bolts require a
3/8" socket.
The cast top and lid assembly bolt down bars:
On each side of the stove body, underneath the cast
top, are (2) 1/4" flange head bolts. See Fig. 12.
These bolts pull the cast top and lid assembly down onto
the hopper gasket to seal the hopper.
They also allow for a small amount of front to back
adjustment for alignment of the top into the wing
pockets.
(View looking up under the cast top.)
Fig. 12
Top bolt down bar
Be careful not
to damage the
distribution blower
located under the
insert. There are
guards on both sides
of the motor to allow
the insert to rest
on a flat surface,
however, extra care
should be taken.
NOTICE: When removing the top and lid assembly,
first remove the hopper lid position switch from its
mounting bracket. Loosen the switch retainer nut,
and allow the switch to drop out of the bracket.
Leave the bracket in place.
Top and Lid Assembly
Distribution Blower
Protector Angles: These angles are designed
to protect the blower motor from damage when
Fig. 10 placed on a flat surface. Be careful where and
how the stove body is handled.
Center
Medallion
(2) Spring Latches
(One on each side)
Mounting Shell
Fig. 11
Ash Pan
Flame Guide
Heat
Exchanger
Cover
Internal
Cast Iron
(4) pieces
Installation
10
Removing the Center Medallion
• Lift up on the 2 bottom corners of the medallion until
it is higher than the top of the flame guide.
• Pull the bottom edge of the medallion front approximately 1 inch.
• Pull downward on the corners of the medallion until
the top is released from the 2 retainers that keep the
top aligned when in place.
• Note: The heat exchanger covers will tilt to the front
when the center medallion is removed.l
Center Medallion
Fig. 13
Lasered hinge pin
pivoting point
3rd: DOWN
Cast side
panel hinge
1st:UP
Up and down clearance
adjustment slots.
Remove the cast side panels by lifting them upward
off of the hinge pins. See Fig. 13.
nd: OUT
2nd
Flame guide
Burn Pot
How to Reduce the Weight for Installation, cont'd
2. Remove the door by swinging it open approximately
90o and lift it upward until it clears the hinge pins.
3. Remove the ash pan
4. Remove the (4) internal pieces of cast iron. See Fig.
14 and 15.
Fig. 14
Removing the Heat Exchanger Covers
• Remove the heat exchanger cover by lifting it upward
about 1/2 inch and move the bottom edge front until it
sits flat on the firebox bottom.
• Rotate the edge of the heat exchanger closest to the
burnpot until it is in front of the burnpot.
• Tip the top of the heat exchanger toward the middle
of the opening until it can be lifted up and out.
Lifting tab
Fig. 15
Installation
Beginning Installation
3" Outside Air
starter collar
IMPORTANT: The mounting frame/surround assembly
and flue piping is the most critical part of the installation
and must be done correctly and installed securely.
1. Choose the chimney configuration that is best suited
for the installation. See venting section. Page 21
• Note: If 100% outside air is desired or required, the
outside air option will need to be installed on the stoves
body. (See instructions included with outside air kit (part
#1-00-674080.) See Page 22.
11
Notch
2. Make sure the unit will fit into the fireplace opening.
When installing in smaller fireplaces, test fit the mounting
frame into the firebox. Note: The unit overhangs to the
rear. See Fig. 17
3. Install the 3 piece cast surround set to the sides
and top of the mounting frame with the bolts and nuts
supplied. The left and right side should be done before
the center section is installed. Make sure the bolts are
loose. Do not remove the side panel hinges. The left and
right side wings should be standing up aligned with the
side of the mounting frame and slid inward towards the
center. Note:The wings mount on the rear side below
the notch and on the front side above the notch. See
Fig. 16 & 18. Slide the cast ash lip onto the frame and
check to make sure it can go against the roped frame
rails and fits into the pockets on the left and right cast
sides. See Fig. 19.
Install the center section.
Fig. 16
Ash lip slide rails
4. If the wing extension is required, it should be installed
next.
Cast in front of
the frame. Use
(1)1/4-20 x 3/8
flange bolt from
the rear.
Fig. 17
Approximately 2" overhang
NOTE: The stove body extends through the mounting
frame in the rear approximately 2".
Cast behind the
mounting frame
flange. Use (2)
1/4-20x5/8 flange
bolts and nuts
with bolts from
the front.
Fig. 18
Slide the ash lip
casting into the
frame, making
certain the ash
lip is sitting on
the slide rails on
either side. With
the ash lip in
place, adjust the
surround sides so
there is an even
gap where the
ash lip extends
into the surround
side and tighten.
Fig. 19
Installation
Optional Wing Extension
The optional wing extension is made for fireplace openings which are larger than the cast wing. The standard
wing extension is 48" wide by 34" high.
Custom sized wing extensions can be purchased from
your dealer, for any fireplace openings larger than the
standard wing extension area.
These optional wing extensions will have a 1/2 inch
return bend as shown in fig. 20. Custom oversized wing
extensions with a radius top can be ordered with a radius
of your choosing. These radius wing extensions WILL
NOT have a return bend, although they will be made of
thicker metal to reduce warpage.
12
Connecting the cord retainer to the wing
With the three wing pieces completed, the cord retainer
must be bolted to the bottom rear of the wing. Either left
exit (shown in fig. 22) or right exit.
At the bottom rear edge of the right and left wing there
is a small radius indent for the cord to exit between the
wing and the fireplace face.
1/4-20 x 3/8
button head bolts
(5/32" allen wrench)
(5/32" allen wrench)
Fig. 22
Fig. 20
5. The power cord can be installed exiting the left
(standard) or right side of the surround. If a right side
cord is desired, follow the instructions below.
Changing the cord exit location from the left side
to the right side:
The cord is located on the left side, standard from
Harman. (See fig 21.)
To route the cord to the right side:
• Cut the wire-ties looping the cord to the left
• Re-route the cord along the top of the steel angle
and down the right side.
• Re-tie (not supplied by Harman) the wire through the
notches provided in the mounting frame. Then down
the right side rail.
• Do not remove or move the cord retainer, it is made
to reach both the right and left sides.
Ground
wire-ties
Fig. 23
Nothing can extend
beyond this face to
the back side.
Fig. 21
Do
not
cut.
6. You must now decide whether to install the room
sensor as a wall sensor or as a return air sensor.
Harman highly recommends that the room sensor be
installed. If you are installing the room sensor as a wall
sensor, the long black 2 wire cable must be wire-tied
to the power cord. This wire is long enough to reach
the end of the power cord so the installer can reach
past the hearth to the location where the extension
wire (18/2 thermostat wire, not supplied by Harman)
can be spliced to go to the wall location chosen for the
room sensor.
Installation
7. If the room sensor is used as a return air sensor
rather than a room thermostat/sensor, the black cable
will not be used. The room sensor itself (gray or black
cable with black and red wires) will be connected to the
blue twisted wires from the control board.
Note: The stove body must be able to slide out of the
shell to the limit of the power cord wires for cleaning and
service. Therefore, if the room sensor is connected as
a return air sensor, the wire should be connected long
enough to allow this, but not too long that it would get
tangled or pinched anywhere.
Notice: The male/female connections between the
mounting shell and the stove body should always be
maintained. Wirenut or taped splices should never be
used.
13
8. Install the (4) 3/8-16 x 1" leveling bolts into the
threaded holes in the bottom pan of the mounting shell.
The front two leveling bolts may not be necessary, but
the back two will need to be used to level the wing so
that it is flush with the fireplace face. See Fig. 26.
1/2" threaded
wedging rods
Connecting the room sensor as a return air sensor
• Insert the sensor end of the wire from the rear of the
mounting frame through the hole as shown in fig. 24 .
• Wire-tie the sensor end so that the sensing tip is in the
middle of the front return air opening. See Fig. 25.
• Wire-tie the sensor wire to the inside of the mounting
frame up to the cord grounding location. Follow the
power wiring to where you make the male/female terminal connection to the twisted blue wires.
There are (2) crimp-on connectors in the hardware pack
that must be installed on the internal ends of the room
sensor wires.
3/8 x 16 tapped
leveling bolt holes
(5) bolt down holes
Fig. 26
9. Install the completed frame/surround assembly into
the firebox and level/plumb the wing to the fireplace
face using the leveling bolts as jacks.
Fig. 24
Fig. 25
Side Return Air Holes
Installation
14
* Floor protection must be used from hearth opening
to 6" (152mm) in front of door glass and 6" (152mm)
to each side of the stove body to protect combustibles
from hot ashes. A minimum size will be 16.5" deep by
30" wide and be made of a non-combustible material or
meet UL approval.
12" (305 mm) Mantel - Manteau de Cheminee
Fig. 28
A = to sidewall
B = to 12" mantel
C = to 3/4" trim
D = to 3/4" trim
E = floor protection
Flue Pipe Stub Assembly
*3/4" trim, zero clearance to cast surround.
(from glass)
10. Test fit the cast ash lip (See fig. 25) on the shell frame
mounting rails. The ash lip should slide on these side
rails without lifting upward off of the rails as the ash lip is
slid inward. A small clearance of about 1/16" is an ideal
space between the legs of the ash lip and the hearth.
This cast ash lip is a decorative part that does not and
should not support any weight.
11. Tighten the (2) 1/2" threaded rods up against the lintel
of the fireplace opening. It is also recommended to use
some form of anchoring screws through the bottom of the
shell into the hearth. There are up to 5 holes provided.
Note: It is a good idea to check the ash lip again. The
frame may have shifted when the final anchoring was
completed. See fig. 26.
12. Complete the flue piping, and outside air piping, if
used. Make sure the damper area is sealed.
Warning! do not connect this unit to any
air distribution duct or system.
13. If a rear exit flue configuration is used, with or
without outside air, make sure the flue pipe termination
clearances are followed as per the manufacturers
recommendations.
Fig. 27
Ash lip
mounting
rails
Pre-cut ceramic insulation and (2) pieces of tie wire.
There are three different flue pipe stubs available.
1. The unit comes standard with the largest, for use with
4” stainless steel flex pipe.
2. Part #1-00-674040 is for use with 4” PL vent starter
pipe.
3. Part # 1-00-674039 is for use with 3” PL vent starter
pipe and also for use with 3” aluminum flex duct for
outside air connections.
The flue stub assembly base is a round plate which
allows it to swivel to allow the flue pipe to exit the
mounting frame in other positions rather than straight
up. See fig. 28.
14. Install the flue pipe insulation wrap. See Fig. 27.
This ceramic insulation is precut to form around the flue
pipe stub, to reduce heat transfer into the area around
the rear of the hopper and motor area. This insulation
must be installed in all configurations, even if a rear
discharge is used. See Fig. 29.
CAUTION: If the stainless steel flue pipe does
not extend far enough above the old damper
opening, make sure the fiberglass insulation
does not extend upward and cover the pipe
outlet.
This picture shows the completed
insulation wrapped around the flue pipe Twisted tie wire
from the mounting frame upward.
Fig. 29
With larger flue pipes this bottom edge of the insulation will
need to be trimmed to complete the wrap.
Installation
15. Install the cast side panels by sliding them down
over the lasered hinge pin. Note: Check for rotational
swing, but finish with them in the open position. The cast
side panels may need adjustment after the stove body
is latched into place and the front door is closed.
15
Connecting the ground from the wing to the
stove body
• The green wire with a female terminal is the stove
body ground.
• On the combustion air inlet box there is a male terminal ground.
• If service is performed on this stove, this ground
connection must be the first one on and the last
one off.
Fig. 30
Lasered hinge pin pivoting point
Up and down clearance adjustment slots.
Cast side
panel hinge
16. Place the stove body on the mounting shell gasketed
rails and insert the body into the opening far enough that
it can't tip out. Note: A service rail kit (Part #1-00-08007),
or a pair of 2 x 4's supported in front of the hearth will
make this job easier. See Fig. 31.
17. Complete the following electrical connections
(caution: Disconnect the power cord.) There are 5
connections that must be completed. See Fig. 33 & 34.
Fig. 32
Connecting the power cord
The white from the mounting frame connects to the
white of the insert body. The black from the mounting
frame connects to the brown of the insert body.
Fig. 33
2x4
Fig.31
Installation
Connecting the Room Sensor
Connecting the room sensor to the blue twisted wires
from the control board:
• (2) 3/16 inch male terminals are provided for the ends
of the room sensor wires.
• They will mate with the female terminals on the blue
twisted wires.
•These connections are “not polarity specific.”
16
19. Inspect the silicone sponge gasket on the top edge
of the hopper.
• If it is okay, put the cast top/hopper lid assembly (see
Fig. 35) into place over the hopper.
• Make sure the hopper lid is open to install the top, then
close it to keep from getting pinched in case the lid falls
unexpectedly.
• Insert the (4) 1/4-20 x 1/2 flange head bolts into the
mounting hole but do not tighten them.See page 9, fig.
12.
20. "Test" the unit with the stove body pulled out. This
will allow you to see the motors in operation.
• Turn the control to the "OFF" position.
• Plug the unit into a 120 VAC 60 hz outlet.
• Turn the control to "test". All of the motors should
operate at full voltage for 60 seconds.
Note: The door must be closed for the feed motor to
operate.
• With the "Test" completed, turn the feed adjuster off
of test, and unplug the unit.
21. Inspect the flue docking gasket. See Fig. 36.
Fig. 34
18. Install the front door. Check the latch and
gasketing.
Docking Gasket
Every time the unit is pulled out of the mounting frame,
the orange high temperature docking gasket should be
inspected. Check for tears or signs that the gasket is
not sealing properly.
Docking Gasket
Hopper Seal
Inspect the silicone sponge hopper to top seal gasket.
Look for tears or areas where the gasket may not seal
properly to the bottom of the cast top. This only needs
to be done when the top is removed. This is NOT necessary if the cast top is not removed. (Not part of any
monthly, semi-annual or annual maintenance.)
Hopper seal gasket (gray or orange)
Fig. 36
Fig. 35
Installation
22. Slide the stove body into the mounting frame.
• Note: The two spring latches on the bottom right and left side of the body must be in the proper position to enter the latch holes. (See fig. 37).
• Latch the (2) spring latches into place.
23. Shift the cast top/hopper lid assembly inward as far
as possible to achieve a parallel fit with the surround
sides. See Fig. 39. Tighten the cast top/hopper lid
assembly bolts with a 3/8" socket. See page 9, Fig.
12.
24. Install and adjust the side panel magnets.
• In the hardware pack are (2) magnets, (2) spacers and
(2) 10-32 x 1 1/4" bolts and nuts.
• Bolt the magnets through the holes provided in the
cast ash lip. Important: The spacer must be on top of the hole, the
magnet on top of the spacer, with the bolt going, down,
through the hole, with the nut at the bottom, under the
ash lip. See fig. 38.
25. Check the fit of the cast ash lip to make sure that it
can be slid in and out easily. The cast ash lip can remain
in place at this time. Note: The cast side panel hinges
can be moved upward if necessary to gain clearance
for the cast ash lip.
17
Cast Side Panel Installation
• The stove body must be pulled out of the mounting
frame several inches to install the cast side panels.
• Slide the cast side panel down over the hinge
pins.
• Slide the stove body in and latch into place.
• Note: The cast side panels must be left in the open
position to allow access to the latches.
• Slide the ash lip into place. (This would be inward
until the rear of the cast iron touches the mounting
frame front.)
• Close the cast side panels.
• Check the gap alignment and the top and bottom
gap spacing.
• The top and bottom spacing can be adjusted by
loosening the 3 bolts and sliding the hinge up or down
until the spacing suits.
• With the front door closed and latched, check the
vertical space alignment. The only method of changing or adjusting this gap is by bending (slightly) the
hinge angle. See fig. 39.
• Due to the use of all cast iron parts, some small
amounts of misalignment are expected. Since some
parts are angled and some have rounded edges, this
misalignment is very seldom noticeable.
• It is very important that the cast side panels open
and close freely for control board access.
Latch Hole
Spring Latch
Fit
Fit cast
cast
top/
top/
hopper
hopper lid
lid
parallel
parallel
with
with
surround.
surround.
Magnet
Fig. 37
Magnet
Side panel gap
Fig. 38
Fig. 39
Installation
Wiring
Always disconnect the power cord before the unit
is pulled from the mounting frame.
As you can see, the control board is easily accessible
from the rear with the body pulled out of the frame,
even if it is only pulled out several inches.
• Always inspect the wiring harness of the 11 pin
socket (large white flat plug where all of the power
wires terminate.)
• Always inspect the wiring harness where the wires
transfer from the control to the rear inside of the
body.
• Make sure there are no worn or frayed areas.
Inspect the wiring harness transition area: This is the
area that comes closest to the mounting frame as the unit
is slid in and out of the frame.
18
Log Set Option
Thumb
Screws
Fig.42
Install the log bracket with the two thumb screws
provided.
6 amp
glass
fuse
11 pin
socket
on rear
of control
board
Fig. 40
REMINDERS
• Do not allow pellets or sawdust to build up on the
hopper lip.
• Inspect the hopper lid gasket for damage. A good
hopper lid seal is very important for proper operation.
Hopper lid foam
gaskets
Cast Top
Fig. 41
Fig. 43
Center the log in the firebox opening with the bottom
front edge over the thumb screws. The log branch
tips only rest on the bracket arms for easy installation and removal.
IMPORTANT NOTE: BEFORE CLEANING THE
HEAT EXCHANGERS, THE LOG AND THE LOG
BRACKET MUST BE REMOVED.
Low Draft Voltage Adjustment
19
After the installation is completed, but before the first fire is lit,
check and record the high and low draft readings.
Combustion
Motor Speed
Control
Low draft only
set point.
The small
straight
screwdriver
slot is plastic;
therefore, the
unit can be
adjusted while
in operation.
Fig.44
These units are pre-tested at the factory with
exactly 120 Volts A.C., 60 Hz. They are checked
and adjusted for firebox tightness, gasket leakage,
motor operation and igniter operation. The stove is
then factory set at a high adjustment. NOTE: Low
draft adjustment may be required. The factory
low draft setting may not be correct for the unit's
permanent installation conditions.
The control board on the Accentra Insert is
equipped with a low draft adjustment port. Located
on the control face just to the right of the igniter light.
See Figure 44. This voltage adjustment is provided to
allow the unit to be adjusted for the household voltage
where the unit is going to be in permanent operation.
NOTE: The line voltage varies from area to area and
often home to home.
The low draft voltage should be adjusted to achieve
the most efficient burn on low burn or "maintenance".
This voltage adjustment allows the installer to change
the low voltage set point approximately 15 volts. This
adjustment should be done by the installer during
set up because a draft meter reading is required to
insure proper set up.
If the unit is not adjusted properly, it does not cause
a safety concern. If the unit is adjusted too high, only
efficiency is lost. If the unit is adjusted too low, the low
draft pressure switch will not allow the feeder motor
or the igniter to operate.
Fig. 45
Draft Meter bolt hole location
The head of the plug bolt can be accessed through
the bottom distribution air inlet with the cast ash lip
removed.
A simple draft test should be performed after
completing the flue pipe installation. To record the
results for future reference:
1. Plug unit into a 120VAC, 60 HZ outlet.
2. Close the hopper lid and front view door. Neither
pellets or a fire are required for this test.
3. With the mode selector in the "OFF" position, turn
the feed adjuster to "TEST".
4. Record the high draft_____in. W.C. (Normal is
-.45 to -.55) The control will be on the High Draft for
a total of 2 minutes.
5. After 2 minutes, during the third minute of "test",
the combustion motor will go down to low draft
and the distribution blower will go on high. Allow
approximately 15 seconds to pass for the combustion
motor to slow before checking the low draft.
6. If the low draft is between .30 and .35, record the
reading _____ in. W.C. If the reading is higher, slowly
turn the set screw counter-clockwise until the draft
lowers. If the reading is lower, very slowly turn the set
screw clockwise until the draft increases.
NOTE: The test mode alternates from high to low
draft every 60 seconds. If more time is needed
for draft adjustment, wait until the next low draft
cycle.
NOTE: In some cases, the draft may not go as
low as .30 even with the set screw completely
counter-clockwise.
Mobile Home Installation
Mobile Home Installation
Mobile home installation should be done in
accordance with the Manufactured Home and
Safety Standard (HUD), CFR 3280, Part 24.
When installing the Accentra in a mobile home
several requirements must be followed:
1. The unit must be bolted to the floor. This can be
done with 1/4" lag screws through the 5 holes in the base plate shown in Fig. 26.
2. The unit must also be connected to outside air.
See page 22. All mobile home installations require
the use of outside air, this will increase the heating
efficiency of the unit and keep it from suffering any
effects associated with room air starvation such as
poor combustion and or erratic operation. Periodically
check the air inlet for any obstructions such as snow
or ice build up.
Kitchen exhaust fans, clothes dryers and other
similar devices may cause improper operation of
the pellet stove, if, while in use, it keeps the room
in a negative pressure, thus allowing pipe joints, not
completely sealed, to leak exhaust into the room. Be
sure to allow adequate ventilation while using such
appliances
3. Floor protection and clearances must be followed.
Floor protection and clearances to combustibles must
be followed as per installation instructions for the
stove. Clearances may only be reduced by means
approved by the regulatory authority.
4. Unit must be grounded to the metal frame of the
mobile home.
5. Smoke alarms and smoke detectors are recommended to be used with wood and biomass fueled
stoves. When opening the firebox door some exhaust
may escape into the room and set off the alarm. If
this should happen ventilate the room to remove the
smoke and reset the alarm, if the alarm would go off
when no one was working with the stove ventilate
the room and have your home checked to find the
source of the leak.
Warning
Use of improper fuels, fire starters
or altering the stove for higher heat
output may cause damage to the stove
and could result in a House fire. Use
only approved fuels and operation
guidelines
Warning
mobile/manufactured home
guidelines do not allow installation
in a sleeping room.
CAUTION
THE STRUCTURAL INTEGRITY OF THE
MOBILE HOME FLOOR, WALL, AND CEILING/
ROOF MUST BE MAINTAINED.
Safety Reminders
20
When installing and operating your Harman Accentra Insert, respect basic safety standards. Read
these instructions carefully before you attempt to
install or operate the Accentra Insert. Failure to do
so may result in damage to property or personal
injury and may void the product warranty.
Consult with your local building code agency
and insurance representative before you begin
your installation to ensure compliance with local
codes, including the need for permits and follow-up
inspections.
CAUTION: This appliance must be vented to
the outside.
Due to high temperatures, this stove should be
placed out of traffic and away from furniture and
draperies.
Children and adults should be alerted to the hazards of high surface temperatures and should stay
away to avoid burn to skin and/or clothing.
Young children should be carefully supervised
when they are in the same room as the stove.
Clothing and other flammable materials should
not be placed on or near this stove.
Installation and repair of this stove should be
done by a qualified service person. The appliance
should be inspected before use and at least annually by a qualified service person. More frequent
cleaning will be required. It is imperative that control
compartments, burners, and circulating air passageways of this stove be kept clean.
CAUTION
The stove is hot while in operation.
Keep children, clothing and
furniture away. Contact may cause
skin burns.
WARNING
Keep combustible materials such as
grass, leaves, etc. at least 3 feet
away from the point directly under
the vent termination.
Venting
In flue pipe
21
Use only the specified venting components. Use
of any other components will void the product
warranty and may pose a hazard.
Inside
hopper
Do Not Install A Flue Damper In The Exhaust
Venting System Of This Appliance.
In fan
chamber
& starter
collar
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE
SERVING ANOTHER APPLIANCE.
Inside
firebox
Fig.46
+ = Positive static pressure
= Negative static pressure
A combustion blower is used to extract the combustion gases from the firebox. This causes a negative
pressure in the firebox and a positive pressure in the
venting system as shown in fig. 46. The longer the vent
pipe and more elbows used in the system, the greater
the flow resistance.
The recommended maximum flue lengths for the
Accentra Insert are as follows:
4" Stainless Steel Flex: 30 Lineal ft. Vertical*
4" PL Vent Pipe:
4" Pl Vent Pipe: 30 Lineal ft. Vertical*
4" Pl Vent Pipe: 14 ft. Vertical w/1-90o and 12 lineal ft. horizontal*
If additional 4" PL Vent fittings are required, the
overall length must be reduced by:
Vertical 90o or T: 2.5'
Vertical 45o:
1.5'
Horizontal 90o or T: 5.0'
Horizontal 45o:
2.5'
3" PL Vent Pipe:
20 Lineal ft. vertical*
8 Lineal ft. vertical w/1-90o & 8 lineal ft. horizontal*
If additional 3" PL Vent fittings are required, the
overall length must be reduced by:
Vertical 90o or T: 2.0'
Vertical 45o:
1.0'
Horizontal 90o or T: 4.0'
Horizontal 45o:
2.0'
* Long runs of flex or PL vent pipe installed directly vertical from the
flue stub may require more frequent cleaning due to fly ash falling off
inside and collecting directly above the combustion blower outlet.
Any use of horizontal venting will require more frequent cleaning.
It is the responsibility of the installer to make sure the entire flue
configuration is accessible for cleaning.
4" stainless steel flex vent piping is only allowed for
use in masonry fireplaces and chimneys or factory built
wood burning fireplaces with class A metal chimneys.
All pellet vent pipe must be secured together either by
means provided by pipe manufacturer or by 3 screws
at each joint.
Avoiding Smoke and Odors
Negative Pressure, Shut-down, and Power
Failure:
To reduce the probability of back-drafting or burnback in the pellet burning appliance during power
failure or shut-down conditions, the stove must
be able to draft naturally without exhaust blower operation. Negative pressure in the house will resist this
natural draft if not accounted for in the pellet appliance
installation.
Heat rises in the house and leaks out at upper levels.
This air must be replaced with cold air from outdoors,
which flows into lower levels of the house. Vents and
chimneys into basements and lower levels of the house
can become the conduit for air supply, and reverse
under these conditions.
Outside Air:
Harman Home Heating and Hearth & Home Technologies recommend attaching outside air in all
installations, especially lower level and main floor
locations.
Per national building codes, consideration must be
given to combustion air supply to all combustion appliances. Failure to supply adequate combustion air for all
appliance demands, may lead to back-drafting of those
and other appliances.
When the appliance is side-wall vented: The air intake is best located on the same exterior wall as the
exhaust vent outlet and located lower on the wall than
the exhaust vent outlet.
When the appliance is roof vented: The air intake is
best located on the exterior wall oriented towards the
prevailing wind direction during the heating season.
The outside air connection will supply the demands
of the pellet appliance, but consideration must be given
to the total house demand. House demand may consume some air needed for the stove, especially during
a power failure. It may be necessary to add additional
ventilation to the space in which the pellet appliance is
located. Consult with your local HVAC professional to
determine the ventilation demands for your house.
Venting
Vent Pipe
Be sure to use approved pellet vent pipe wall and ceiling pass- through fittings to go through combustible walls
and ceilings. Be sure to use a starting collar to attach
the venting system to the stove. The starting collar must
be secured to the flue stub with at least three screws,
and sealed with high temp silicone caulking.
4" stainless steel flex vent piping is only allowed for
use in masonry fireplaces and chimneys or factory built
woodburning fireplaces with class A metal chimneys.
Pellet venting pipe (also known as Type L or PL vent)
is constructed of two layers with air space between the
layers. This air space acts as an insulator and reduces
the outside surface temperature to allow a clearance to
combustibles of only 3 inches. The sections of pipe lock
together to form an air tight seal in most cases; however,
in some cases a perfect seal is not achieved. For this
reason and the fact that the Accentra Insert operates
with a positive vent pressure, we specify that the joints
also be sealed with silicone.
Where passing through an exterior wall or roof, be
sure to use the appropriate pass-through device providing an adequate vapor barrier. Venting manufacturers
generally provide these pas-through devices.
Outside Air
22
100% Outside Air Kit
100% Outside Air
Kit # 1-00-674080
Designed for 3" flex pipe
1/8" Fiberglass Gasket
1/2" Silicone Gasket
2 3/8" ID Flex Pipe
Intake Box
Fig. 47
Adjustable Chimney
Intake Extension
Part # 1-00-674104
Fig. 48
The outside air kit consists of a flue stub pipe,
fiberglass gasket, silicone gasket, intake box and a
section of flex pipe. See Fig. 47.
An adjustable chimney intake extension, part # 1-00674104 is available to be used on masonry chimneys
only. See Fig. 48.
Additional information and diagrams can be found
on pages 23 thru 27, under venting.
To install outside air, use kit part number 1-10674080. Follow the installation instructions provided
with the kit.
Vent Configurations:
To reduce probability of reverse drafting during shut-down conditions, Hearth & Home Technologies strongly
recommends:
• Installing the pellet vent with a minimum vertical run of five feet, preferably terminating above the roof line.
• Installing the outside air intake at least four feet below the vent termination.
To prevent soot damage to exterior walls of the house and to prevent re-entry of soot or ash into the house:
• Maintain specified clearances to windows, doors, and air inlets, including air conditioners.
• Vents should not be placed below ventilated soffits. Run the vent above the roof.
• Avoid venting into alcove locations.
• Vents should not terminate under overhangs, decks or onto covered porches.
• Maintain minimum clearance of 12 inches from the vent termination to the exterior wall. If you see deposits
developing on the wall, you may need to extend this distance to accommodate your installation conditions.
Hearth & Home Technologies assumes no responsibility for, nor does the warranty extend to, smoke
damage caused by reverse drafting of pellet appliances under shut-down or power failure conditions.
Venting
The chimney top must be capped
to prevent rain and/or snow from
entering the chimney.
See Page 22. for information on
the optional Harman Adjustable
Stainless Steel Intake Extension.
The damper area must be
sealed with a steel plate and it
is recommended that Kaowool,
Mineral wool or an equivalent non
combustible insulation is used on
top of the plate to reduce the possibility of condensation. Insulation
alone should not be used to seal
the damper opening.
23
#1 Installing into an existing fireplace
chimney
This method provides excellent venting with
100% outside air which is the most efficient operation of this unit. This method also provides natural
draft in the event of a power failure.
A 4 inch stainless steel flex pipe is needed for
the flue pipe, and 3" aluminum or Stainless Steel
Flex Pipe is used for the intake.
WARNING
CHIMNEY CONNECTOR PIPE MAY NOT
PASS THROUGH CONCEALED SPACES
INCLUDING AN ATTIC, ROOF SPACE,
Height of existing hearth
CLOSET, FLOOR OR CEILING.
Fig. 49
The chimney top must be
capped to prevent rain and/or
snow from entering the chimney.
The damper area must be
sealed with a steel plate and it
is recommended that Kaowool,
Mineral wool or an equivalent non
combustible insulation is used on
top of the plate to reduce the possibility of condensation. Insulation
alone should not be used to seal
the damper opening.
Fig. 50
#2 Installing into an existing
fireplace chimney
This method provides excellent venting for normal operation. This method also provides natural
draft in the event of a power failure.
The damper area must be sealed with a steel
plate. A cap should be installed on the chimney to
keep out rain.
Combustion air is provided from the living area
and enters the feed system from around the wing and
stove body spaces.
Venting
The chimney top must be capped
to prevent rain and/or snow from
entering the chimney.
The damper area must be
sealed with a steel plate and it
is recommended that Kaowool,
Mineral wool or an equivalent non
combustible insulation is used on
top of the plate to reduce the possibility of condensation. Insulation
alone should not be used to seal
the damper opening.
24
#3 Installing into an existing
chimney
This method provides excellent venting for normal operation. This method also provides natural
draft in the event of a power failure. If the chimney
condition is questionable you may want to install a
liner as in method #2.
This is the minimum allowed vent pipe using 4"
stainless steel flex pipe.
The vent pipe must extend past the damper
sealing area by at least 12 inches.
Note: The insulation material must not be allowed to expand to the point that it covers the end
of the flex pipe.
The chimney should be capped with any style
cap that will not allow rain or snow to enter.
In some places in the US and Canada, it is
required that the vent pipe extend all the way to the
top of the chimney. Check your local codes.
WARNING
Fig.51
Chimney top
must be sealed
Fiberglass insulation
packed above the
damper opening and
sealed plate. (Not a
Harman product.)
12" minimum
CHIMNEY CONNECTOR PIPE MAY NOT
PASS THROUGH CONCEALED SPACES
INCLUDING AN ATTIC, ROOF SPACE,
CLOSET, FLOOR OR CEILING.
#4 Preferred method
This method provides excellent venting for
normal operation and in a fireplace with inadequate
flue space, or a height of over 30 feet. A 3" or 4" PL
vent pipe should be used with the needed swivel
flue stub.
NOTE: The flue stub insulation wrap must still
be used with this method. See page 14, Fig. 27 &
29. With a 100% outside air kit the outside air can
be installed in the same manner as the flue pipe.
Stainless Steel
Outside Air Inlet
Cover
part# 1-10-09542
3" Flex
pipe
36"
CAUTION
18" min.
Fig.52
Keep combustibles (such as
grass, leaves, etc.) at least 3
feet away from the flue outlet
on the outside of the building.
Venting
25
Installing the Accentra Insert into an
existing factory built wood burning
fireplace
When installing the Accentra Insert into a factory
built wood burning fireplace, the Manufactured Fireplace Installation Kit # 1-00-674205 must be used. In
addition, several things need to be taken into consideration.
The size of the fireplace opening. Will the unit fit
into the opening? Many of these units have metal
smoke shields inside the top that can be removed to
gain height. Often the side and rear refractory can be
removed to gain depth and width. In some circumstances, the front lower lip or grill work may also be
removed. Be sure and follow the guidelines in the kit
instructions. Because of the special track system, it
is also permitted to remove the floor refractory and/or
insulation in the bottom of the manufactured fireplace,
right down to the outer sheet metal, which must be left
in place for floor protection under the insert mounting
frame. Floor protection guidelines, as listed on page
14 must also be followed.
Fig. 53
Note: If the Harman Accentra Insert is installed into a factory built wood burning fireplace,
this label (Harman part # 3-90-00675) must be attached to the altered fireplace. This label is
included in the Manufactured fireplace installation kit.
Fig. 54
Optional Hopper Configurations for smaller
fireplace openings:
The Harman Accentra Insert can be factory built with shorter
hopper configurations.
The standard requires a 24" opening. Part #1-90-00674
Option 1: Requires a 22" opening height. Part #1-90-00675
Option 2: Requires a 20" opening height. Part #1-90-00676
Keep in mind the hopper capacities will decrease with the optional
heights.
Accentra Insert Zero Clearance Cabinet
26
Sample Mantel System
Harman Zero
Clearance cabinet
(top flue only)
Part #1-00-674070
Insert Body
Insert Wing &
Mounting Frame
See your dealer for part details
and installation instructions.
Fig. 55
Be sure to use approved pellet vent pipe wall
and ceiling pass- through
fittings to go through combustible walls and ceilings.
Be sure to use a starting collar
to attach the venting system
to the flue stub and seal the
connection with high temperature silicone.
When using 3" or 4" PL vent
pipe, there must be a 3"
clearance to combustibles.
Harman Zero Clearance Box
Flue Pipe Rough-In Support
(optional)
Part # 1-00-674119
A minimum of a 1" hearth
is required when using the
Harman Zero Clearance box.
Fig. 56
Combustible materials are allowed to touch the cabinet anywhere behind the front mounting flanges except vent
clearance areas. The hearth substructure may be built of combustible material although a non-combustible hearth
surface (tile, stone, metal, glass) must extend as far as shown on the appliance's Testing Label.
Venting
Requirements for Terminating the Venting
WARNING: Venting terminals must not be recessed
into a wall or siding.
NOTE: Only PL or L vent pipe wall pass-throughs and
fire stops should be used when venting through combustible materials.
NOTE: Always take into consideration the effect the
prevailing wind direction or other wind currents will cause
with flyash and /or smoke when placing the termination.
In addition, the following must be observed:
A. The clearance above grade must be a minimum
of 18".1
B.The clearance to a window or door that may be
opened must be a minimum of 48" to the side and 48" below the window/door, and 12" above the window/door.1
(with outside air installed, 18” to side and below)
C. A 12" clearance to a permanently closed window is
recommended to prevent condensation on the window.
D. The vertical clearance to a ventilated soffit located
above the terminal within a horizontal distance of 2 feet
(60 cm) from the center-line of the terminal must be a
minimum of 18".
E. The clearance to an unventilated soffit must be a
minimum of 12".
F. The clearance to an outside corner is 11" from center
of pipe.
G. The clearance to an inside corner is 12".
H. A vent must not be installed within 3 feet (90 cm)
above a gas meter/regulator assembly when measured
from the horizontal center-line of the regulator.1
= Vent terminal
= Air Supply Inlet
27
I. The clearance to service regulator vent outlet must
be a minimum of 6 feet.1
J. The clearance to a non-mechanical air supply inlet
to the building or the combustion air inlet to any other
appliance must be a minimum of 48”.1
K. The clearance to a mechanical air supply inlet must
be a minimum of 10 feet.1
(with outside air installed, 6 feet )
L. The clearance above a paved sidewalk or a paved
driveway located on public property must be a minimum
of 7 feet.1,2
M. The clearance under a veranda, porch, deck or
balcony must be a minimum of 12 inches.1,3 (B. also)
NOTE: The clearance to vegetation and other exterior
combustibles such as mulch is 36” as measured from
the center of the outlet or cap. This 36” radius continues
to grade or a minimum of 7 feet below the outlet.
1
Certain Canadian and or Local codes or regulations
may require different clearances.
2
A vent shall not terminate directly above a sidewalk or paved driveway which is located between two
single family dwellings and serves both dwellings.
3
Only permitted if veranda, porch, deck, or balcony is
fully open on a minimum of 2 sides beneath the floor.
NOTE: Where passage through a wall, or partition of
combustible construction is desired, the installation
shall conform to CAN/CSA-B365. (if in Canada)
= Area where termination is not permitted
Maintenance - Cleaning Glass on View Door
28
The glass used in your stove is manufactured to exact standards to withstand the high heat of the fire, but
like all glass, it must be treated with common sense and care. Never abuse the glass by slamming the door
shut or striking the glass with a heavy object. If the glass is broken or damaged, do not operate the stove until
it has been replaced.
Glass - Replacement
If the stove’s glass is cracked or broken, you must replace it before operating your stove. Remove pieces
carefully. Replace glass only with Harman replacement glass; do not use substitutes.
Carefully remove damaged glass, gasket material, and hold down clips (set aside).
Install the self adhesive 1/4"” gasket material around the front face of the glass. Set the glass panel and gasket
gently onto the door. Install the hold down clips and tighten with bolts.
Glass - Cleaning
Sometimes it will be necessary to clean accumulated ash from the glass surface; allowing this ash to remain
on the glass for long periods can result in “etching” due to the acidity of the ash. Never clean the glass while it
is hot, and do not use abrasive substances. Wash the surface with cool water, and rinse thoroughly. You may
wish to use a non-abrasive cleaner specifically designed for use on stove glass. In any case, dry thoroughly
before relighting your stove.
Disposal of ashes: Ashes should be placed in a metal container with a tight fitting lid. The closed container of
ashes should be placed on a non-combustible floor or on the ground, well away from all combustible materials,
pending final disposal. If the ashes are disposed of by burial in soil or otherwise locally dispersed, they should
be retained in the closed container until all cinders have thoroughly cooled.
Soot and fly ash: Formation and need for removal. The products of combustion contain small particles of
fly ash. The fly ash will collect in the exhaust venting system and will restrict the flow of the flue gases. Pellet
fuels have different ash contents depending on what type of wood has been used to make the pellets. We
recommend to clean the system after approximately 1 ton of pellets have been burned and judge from
that how often the stove should be cleaned, remember if you change pellets it may change how often
you have to clean your stove.
When burning wood slowly, the potential exists for creosote to form. The venting system should be
inspected periodically throughout the heating season to determine if a creosote buildup has occurred. If a
significant layer of creosote has accumulated (3mm or more), it should be removed to reduce the risk of
a chimney fire. If a fire occurs, call the fire department, shut down the stove, and evacuate the residence.
Before using the appliance, have the venting system thoroughly inspected and replace any damaged
components.
Replace glass
only with high
temperature
ceramic glass.
Glass Gasket
Fig. 57
Inspect door gasket during
cleaning and inspection
Maintenance - Burn Pot
29
Burn Pot Cleaning and Maintenance
Whenever adding fuel, take the opportunity to clean
the burn pot.(Weekly at minimum)
• Scrape the top holed surface and sides of the burn
pot down to auger tube.(Fig 58) It is not necessary to
completely remove all material from the burn pot. The
excess will be pushed out during the next use.
Monthly, or after each ton of fuel burned:
• Loosen the (2) wing thumb screws on the lower front
angle of the burn pot. (Fig. 59)
• Lift off the clean-out cover (Fig.59) to open the
bottom clean-out chamber. (Fig.60)
Fig.58
DANGER
Disconnect the power to the unit before
removing cover.
Fig. 59
Burn pot igniter
• Clean ash buildup from inside the chamber while
cover is off. Use the scraper to tap on the top front
edge of the burn pot. This will help knock pieces of
ash, loosened by the scraping process, down through
the holes. It also helps knock scale off of the igniter
element.
Figure 60
The igniter is made to be removable for service
by insulated male/female wire connectors. These
connections between the hot leads (the wires inside
the burn pot) and the cold leads (the wires from the
control board) are always pulled to the inside rear of
the feeder body. (Not coiled inside the burn pot.)
It is very important that these connections are to the
inside rear of the feeder body. Also, the extra wire of
the igniter wire service loop must be pulled out through
the rear of the feeder and tied up so that it will not be
damaged by any moving parts.
WARNING
Use caution when cleaning burn pot clean-out
chamber. Do not damage the high temperature
igniter wires.
Igniter hot lead wires
(high temperature)
Fig. 60
Viewed from below through the ash pan opening.
Note: The hot lead/cold lead connection
must always be pulled to the rear of the
feeder body before operation.
Maintenance - Cleaning
30
Monthly Cleaning- continued:
There is a 2" square exhaust tube on each side (lower
left and right corners) of the firebox. They can only be
seen with the cast heat exchanger covers removed.
Fig. 61
Cleaning the Heat Exchanger tubes
Using the cleaning brush provided, clean these tubes
after every 1 ton of pellets are used.
These tubes are an important part of the heat exchanger. Efficiency will be lost if they are not properly
maintained. The right side tube is a straight passage
to the combustion blower chamber. The Left side tube
follows straight back then makes a right turn, across
the back, to the combustion chamber. You will need
to use the entire length of the cleaning brush handle
to properly clean this tube.
Fig. 62
Primary Air Inlets
Fig. 63
Cleaning the Heat Exchanger
The accordion heat exchanger surfaces are the primary
source of heat transfer into the room. Therefore, it is
very important to keep them clean from flyash and
soot buildup.
• The heat exchanger surfaces should be cleaned after
approximately every 1 ton of pellets are used.
• Use the scraper provided to clean all the way into
the point.
• Note: An old paint brush works well to clean these
surfaces.
• Note: The unit “must be cold” before using anything
other than a wire brush.
• There are 2 primary air inlet holes on the rear flange
of the burnpot. They should be checked for blockage
and cleaned with a vacuum if necessary. Note: The
bottom of the flame guide has 2 notches that match
the holes.
Maintenance - Cleaning
31
Feeder Chamber
Feeder rear
chamber/
clean out
cover
ESP
5/16"
wing nut
Fig. 64
Pellet
Metering
slide plate
Possible pellet
fines buildup
area.
Fig.65
Close
Tolerance
This chamber may get a buildup of fines from the feeder
mechanism movement. This area should be checked and
cleaned at least once a year.
To remove the feeder cover:
• Remove the 5/16" wing nut.
• Slide the cover off of the threaded stud.
• Inspect and clean the inner chamber if necessary. See
Fig. 65.
• Reinstall the cover making certain it is centered on the
feeder body and tighten as tightly as you can by hand.
The combustion blower is made to be removed easily for
inspection and cleaning. See Fig. 67.
The combustion blower is mounted on a precision cut
gasketless mounting plate. This plate is held into place
with (3) thumb screws. See Fig. 67.
To remove the combustion blower:
• Turn the thumb screws counterclockwise approximately
5 turns. Rotate the entire assembly counter clockwise until
the points of the retaining slots are visible.
• Remove the blower assembly with the fan blade by
pulling it directly away from the blower housing.
• The cord on the motor is long enough to allow the motor
to be set down on the black plastic fan cover. This allows
for easy access to inspect and clean the area. See Fig.
66.
• With the blower assembly out, inspection should be done
on the surfaces of the blower assembly and the housing
opening where they meet. These surfaces MUST be
clean and free from dirt, grit, flyash, soot or nicks in the
metal. This gasketless seal relies on an extremely close
tolerance. Therefore, anything other than a clean joint
may cause exhaust gases and/or flyash to escape.
• The assembly can only be reinstalled in one position:
with the motor winding in the upward location. See Fig. 67.
The mounting plate will not allow for any other position.
• Always make sure that the assembly is fully seated and
the (3) thumb screws are tightened before operating the
unit.
Mating
Surface
Close
Tolerance
Fig. 66
Fig. 67
Combustion
Motor
Feed Motor
The Control Board/ESP combination is responsible for
all high limit safety control. There are 2 high limits, one normal
operation high limit and one backup high limit. The control has
an automatic diagnostic circuit that continuously monitors the
ESP and Room Sensor for faults. If a fault should occur, the
control sends a status alert and at the same time the unit goes
down to minimum feed/minimum burn as a safety condition.
Silicone
sponge
docking
gasket
The Hopper Lid Position Switch is found in the rear
corner of the hopper opening. If the hopper lid is not fully
closed, the switch opens, interrupting the power to the feed
motor and the igniter circuits. This prevents possible injury from
reaching into the feeder mechanism during operation.
Hopper Lid
Position
Switch
The Low Draft Pressure Switch is a differential pressure switch that monitors the negative pressure (Draft) in the
firebox. If the draft becomes too low for proper combustion,
the switch opens, cutting power to the feed motor and the
igniter circuits. This switch is connected into the AC (high
voltage) wiring.
Accentra Pellet Insert Safety Devices
Distribution Blower
(under unit)
See Fig. 10, Page 9.
Backdraft Damper Assembly
Always check to see if the damper
plate swings freely inward and that
the seating edges are not covered
with dirt or lint.
Low Draft
Pressure
Switch
Accentra Insert Motor & Component Locations
Motor & Component Locations
32
Trouble-Shooting
STOVE DOES NOT FEED
1. No fuel in hopper.
2. Firebox draft may be too low for sensing switch in
feeder circuit to operate. Check for closed doors,
loose or missing gasket on doors or hopper lid.
3. Hopper lid must contact the lid position switch.
4. Feed motor will not run until the ESP control
senses a certain temperature. Maybe you did not
put enough fuel or starting gel in the burn pot before
manually lighting the fire.
5. Restriction in the hopper or feeder. Remove all
fuel and examine. Clear the obstruction.
6. Feed motor has failed.
PARTIALLY BURNED PELLETS
1. Feed rate too high.
2. Poor air to fuel mixture. (Check burn pot cleanout cover and air intake).
3. Burn pot or heat exchanger tubes may need to
be cleaned.
4. Combination of all the above.
5. #6 status blink: A 6 blink control board status
indication is caused by poor or incomplete combustion. The circuit board has the ability to track the
combustion through feed settings and ESP temperatures. When the control board has calculated
poor or incomplete combustion, it will shut down
the unit as a safety feature. (Poor or incomplete
combustion is a contributor of creosote which may
cause a chimney fire)
A 6 blink status may be caused by several
things:
1. Blocked or partially blocked flue.
2. Blocked or partially blocked inlet air.
a. Backdraft damper on the inlet pipe may be
stuck closed.
b. If outside air is installed, the inlet cover may
be blocked.
3. The air chamber under the burnpot may be filled
with fines and small bits of ash.
4. The holes in the burnpot may be getting filled
with ash or carbon buildup.
5. Combustion blower fan blades may need
cleaned.
6. Fuel restrictions as noted above.
SMOKE SMELL
Seal the vent pipe joints and connection to stove
with silicone. The exhaust vent is the only part of
the system that is under positive pressure.
FIRE HAS GONE OUT- Check for status light.
1. No fuel in hopper.
2. Draft is too low, blocked flue.
3. Something is restricting fuel flow.
4. Hopper lid not closed properly.
5. Feed motor or combustion blower has failed.
33
SMOKE IS VISIBLE COMING OUT OF VENT
1. Air-fuel ratio is too rich.
A. Feed rate too high.
B. Draft too low caused by a gasket leak.
LOW HEAT OUTPUT
1. Feed rate too low
2. Draft too low because of gasket leak.
3. Poor quality or damp pellets
4. Combination of 1 and 2.
Helpful Hints
Cleaning Burn Pot
Whenever your stove is not burning, take the opportunity to scrape the burn pot to remove carbon buildup.
A vacuum cleaner is handy to remove the residue. Be
sure the stove is cold if you use a vacuum.
Carbon buildup can be scraped loose with the fire
burning using the special tool provided with your stove.
Scrape the floor and sides of the burn pot. The carbon
will be pushed out by the incoming fuel. Always wear
gloves to do this.
Removing Ashes
Turn the Temp Dial to number 1 approximately 30
minutes before removing ashes. This will result in a
cooler stove and ash pan.
Maximum Feed Adjuster settings are not needed
in most cases. Operating in the normal range (#4) is
recommended when maximum heat output is not required. The ESP probe prevents the stove from being
over-fired.
Keep the stove free of dust and dirt.
Fuel
The Accentra is approved for burning any grade
of pelletized bio-mass fuel. It is also approved for burning shelled corn in a mixture with wood pellets, up to
50%.(See Page 46)
It should be noted, however, that higher ash content will require more frequent ash removal, scraping of
the burn pot, and may provide less BTU's per pound.
The moisture content of pellets must not exceed
8%, and corn must not exceed 15%. Higher moisture
will rob BTU's and may not burn properly.
Fuel should not be stored within the stove installation clearances or within the space required for charging and ash removal. See Page 14.
5
6
Specifications
Weight
450 lbs.
Blower 180 cfm
Hopper Capacity
57 lbs. (24" hopper #1-90-00674)
FuelWood Pellets
Outside Air Size
3 inches
Fuse Rating
6 amp
BTU Range
0 to 42,000
Feed Rate .75 lbs./hr. on minimum(on maintenance)
5 lbs./ hr. on maximum
Vent Size
4 inch Pellet Vent Pipe, standard,
3 inch Pellet Vent Pipe, option
Maximum Wattage
440 Watts (Start cycle and test)
Start Cycle Wattage
340 Watts
Normal Run Wattage
255 Watts
34
WHITE
BLUE
WHITE
Med & Low Windings
( NOT USED )
MALE/FEMALE CONNECTIONS
BLACK
BLACK
MAX. WATTS 640
DISTRIBUTION BLOWER
-- 5.4 A. --
COMBUSTION MOTOR
LOW PRESSURE SWITCH
N.O. CONTACTS
RED
GREEN
GREEN WIRE IS GROUND
BONDED TO STOVE BODY
GREEN/YELLOW
SKY BLUE
120 VOLTS A.C. 60 HZ.
IGNITER ELEMENT
1
11
8
9
10
3
4
5
6
PART NO. 3-90-09321
1
2
3
4
5
6
7
8
9
10
11
ESP PROBE
6 AMP GLASS FUSE
BROWN
PLUGGED
WHITE
WHITE
WHITE
WHITE
EMPTY
YELLOW
BLUE
RED
BLACK
TWISTED WIRE
ESP
CONTROL
BOARD
ROOM SENSOR Wires
twisted pair wire
HOPPER LID SWITCH
N.O. CONTACTS
BR
OW
N
ITE
WH
FEEDER MOTOR
8” X 5” black on white adhesive. Part Number 3-90-09321 RevE
BLACK
WHITE
WHITE
SKY BLUE
HARNESS THROUGH BODY
CONNECTION NOT COLOR SPECIFIC
BLUE
RED
MALE/FEMALE CONNECTIONS
BLACK
18/3 10 Amp POWER CORD
WHITE
BLACK
YELLOW
HARMAN - ACCENTRA INSERT PELLET STOVE # 1-90-00674
WHITE 11 PIN PLUG
ROOM SENSOR Wire
for external location
Accentra Insert Wiring Diagram
35
Service Parts
Accentra (Insert)
Pellet Insert Stove
Beginning Manufacturing Date: N/A
Ending Manufacturing Date: Active
20” Hopper:
1-90-00676-1 (Black)
1-90-00676-2 (Charcoal)
1-90-00676-3 (Goldenfire)
1-90-00676-4 (Metallic Blue)
1-90-00676-5 (Honey Glo)
1-90-00676-10 (Mojave Red)
1-90-00676-12 (Forest Green)
24” Hopper:
1-90-00674-1 (Black)
1-90-00674-2 (Charcoal)
1-90-00674-3 (Goldenfire)
1-90-00674-4 (Metallic Blue)
1-90-00674-5 (Honey Glo)
1-90-00674-10 (Mojave Red)
1-90-00674-12 (Forest Green)
22” Hopper:
1-90-00675-1 (Black)
1-90-00675-2 (Charcoal)
1-90-00675-3 (Goldenfire)
1-90-00675-4 (Metallic Blue)
1-90-00675-5 (Honey Glo)
1-90-00675-10 (Mojave Red)
1-90-00675-12 (Forest Green)
3
4
2
1
6
7
5
8
11
10
12
13
9
37
36
21
14
15
22
16
18
25
20
35
17
19
34
24
33
23
32
31
30
29
27
26
28
Part number list on following page.
09/10
Accentra (Insert)
Service Parts
Beginning Manufacturing Date: N/A
Ending Manufacturing Date: Active
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.
ITEm
description
COmmENTS
Stocked
at depot
PArT NumbEr
1
Cast Side Hinge Right
2-00-674048-2B
2
Mounting Frame Assembly
1-10-674043A
3
All Thread .500-13 x 12
4
Cast Side Hinge Left
Qty. 2 Req.
2-00-674048-1B
1-10-674115A
Y
1-10-01781A
Y
1-00-232108**
Y
Post 00824467
1-10-01781A
Y
Pre 008240096
1-10-674112A
Y
1-10-01782A
Y
1-00-232108**
Y
Post 008244667
1-10-01782A
Y
Pre 008240096
1-10-674063A
Y
Pre 008240096
Feeder Hopper Assembly - Height 20”
5
Feeder Hopper Assembly - Height 22”
Feeder Hopper Assembly - Height 24”
8240096 thru
008244667/Must also
order Switch retrofit Kit**
8240096 thru
008244667/Must also
order Switch retrofit Kit**
008240096 thru
008244667/ Must also
order Switch retrofit Kit**
1-10-01780A
1-00-232108**
Y
Post 008244667
1-10-01780A
Y
Gasket, Hopper Top
Switch, Hopper 48”
3-31-00949
1-00-375501
Post 008244667
3-20-232108
Y
1-10-674040W
Y
1-00-07384
Y
6
Pipe Stub for 4 in. Flex
7
Pipe Stub Plate Gasket
8
Docking Gasket Red Silicon
3-44-06108
Y
9
Combustion Blower
3-21-08639
Y
Motor Blade
3-21-00661
Y
10
Cast Top Bolt Plate
1-00-674109
11
Differential Switch
3-20-6866
12
Control Heat Shield
2-00-674061B
13
Control Board Mounting
1-10-674049L
14
Spring Latch
15
Steel Sleeve Bushing 1/2” OD x 3/4”
3-50-05230
16
Finished Body Weldment
1-89-674001W
17
Cast Center Medallion
3-00-674060
Y
18
Cast Heat Exchanger CVR
3-00-674050
Y
19
Flame Guide
3-00-03000
Y
20
Hopper Lid Latch Kit
1-00-674139
Y
Pkg of 5
Qty. 2 Req.
Qty. 2 Req.
Sold as kit only
3-31-00927
Y
Y
Additional service parts on following page.
09/10
Accentra (Insert)
Service Parts
Beginning Manufacturing Date: N/A
Ending Manufacturing Date: Active
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.
ITEm
description
COmmENTS
Stocked
at depot
PArT NumbEr
Y
21
Cast Wing Center
4-00-674058P
22
Cast Hopper Lid
1-10-674059
23
Hopper Lid Hinge Retainer
24
Cast Top
4-00-674055A
25
Cast Wing Left
4-00-674056P
Y
26
Door Assembly
4-00-674053A
Y
27
Cast Bottom Ashlip
3-00-674051P
28
Cast Side Panel
29
Cast Wing Right
30
Pkg of 4
Qty. 2 Req.
1-00-674083
4-00-674054P
4-00-674057P
Y
Burn Pot Weldment
1-10-00675
Y
Ignitor Element
3-20-677200
Y
1-00-06620
Y
1-10-674030
Y
Ignitor Cradle, Holder, Flat bottom
3 Sets
31
Ash Pan
32
Fan Protector Angle
33
Distribution Blower
34
Hinge Plate
35
Flue Box Cleanout Cover
2-00-674009B
36
Pellet Burn Pot Gasket
3-44-724114
37
38
Feeder Assembly
Qty. 2 Req.
2-00-06114B
3-21-47120
Qty. 2 Req.
Y
3-00-674047
Pre 008240096
1-10-01679A
Post 008240096
1-10-01779A
Y
Additional service parts on following page.
09/10
Accentra (Insert)
Service Parts
Beginning Manufacturing Date: N/A
Ending Manufacturing Date: Active
Pre Serial Number 008240096 Feeder Assembly
37.2
37.3
37.1
37.4
37.5
37.6
37.12
37.11
37.7
37.8
37.9
37.10
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.
ITEm
37
description
Feeder Assembly
COmmENTS
Pre 008240096
Stocked
at depot
PArT NumbEr
1-10-01679A
37.1
Air Intake Damper Assembly
1-10-06466W
37.2
Air Intake Weldment
1-10-674045W
37.3
Feeder Weldment
1-10-677150
Y
37.4
Slide Plate Assembly
1-10-08037
Y
37.5
Pusher Arm Assembly
1-10-773890
Y
37.6
Feed Cover and Gasket
1-00-677152
Y
37.7
Auger Assembly
3-50-00465
Y
37.8
Cam Bearing
3-31-3014
Y
37.9
Bearing Flange w/Hardware
1-00-04035
Y
37.10
Bracket, Gear Motor
1-00-01534
Y
37.11
Gear Motor, 4 RPM
3-20-60906
Y
37.12
Cast Cam Block
3-00-00153
Y
Feeder Repair Kit
1-00-677150
Y
3-44-72224-6
Y
Gasket, Feeder, Air Intake
2 Sets
Pkg of 2
Pkg of 6
Additional service parts on following page.
09/10
Accentra (Insert)
Service Parts
Beginning Manufacturing Date: N/A
Ending Manufacturing Date: Active
Post Serial Number 008240096 Feeder Assembly
38.1
38.12
38.15
38.16
38.14
38.2
38.13
38.3
38.11
38.10
38.9
38.4
38.5
38.7
38.8
38.6
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.
ITEm
38
description
Feeder Assembly
COmmENTS
Post 008240096
Stocked
at depot
PArT NumbEr
1-10-01779A
38.1
Pellet Feeder Gear Motor, 4 RPM
3-20-60906
Y
38.2
UL Feeder Cam Bearing
3-31-3014
Y
38.3
9MM Silicone Tube
1-00-511427
Y
38.4
Pellet Air Intake Assembly
1-10-06810A
38.5
Gasket Feeder Air Intake
38.6
UL Feeder Air Intake
38.7
Gasket Ultra Air Intake
38.8
38.9
38.10
Fines Deflector
38.11
Gasket, UL Feeder Cover
1-00-677122
Y
38.12
Slide Plate Assembly
1-10-677121A
Y
38.13
UL Feeder Auger Assembly
3-50-00565
Y
38.14
Bearing Flange w/Hardware
1-00-04035
Y
38.15
UL Feeder Gear Motor Bracket w/Grommet
1-00-247406
Y
38.16
UL Feeder Cam Block
3-00-677154
Y
Gasket, Hopper Throat
3-44-677185
Pkg of 6
3-44-72224-6
Y
1-10-674130
Pkg of 10
3-44-677160-10
Y
Ultra Feeder Weldment
1-10-724132
Y
UL Feeder Pusher Arm
1-10-677131W
Y
Pkg of 10
2-00-677138-10
Additional service parts on following page.
09/10
Accentra (Insert)
Service Parts
Beginning Manufacturing Date: N/A
Ending Manufacturing Date: Active
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.
ITEm
description
COmmENTS
Air Jacket Insulation - On rear of Firebox
Arrow Burn Pot Scraper
Stocked
at depot
PArT NumbEr
3-44-674034
Pkg of 10
2-00-773850-10
Battery Back-up
3-20-512
Blower Mount Weldment
1-10-674006
Blue Twist Wire 21”
3-20-674100
Cast Air Grill
3-00-674052S
Cast Top to Hopper Gasket
1-00-375501
Ceramic Log (1 piece)
Log Bracket Kit
Must order both parts for
replacement
3-40-674099
1-00-674097
Circuit Board
1-00-05886
Combustion Box Insulation Cover
2-00-674038B
Combustion Blower Box Insulation - Side
3-44-674037
D-Shape Knob/ Shaft
Y
1-00-015605
Y
Door Latch
3-00-249119
Y
Fan Blade 4-3/4” Single Paddle (Combustion Blower)
3-21-00661
Y
Gasket, Burn Pot/ Tailpipe
1-00-07381
Y
Flue Pipe Insulation Wrap
3-44-674102
Flue Tube Cleaning Brush
3-40-00126
Fuse 6 AMP
25 Sets
Y
Pkg of 5
Glass
3-20-49447-5
Y
3-40-674090
Y
Glass Clip
Pkg of 4
1-00-249140
Magnetic Latch Assembly w/3/16” Hole
2 Sets
1-00-08288
Power Cord - 14’
3-20-674200
Y
Room Sensor
3-20-00906
Y
Room Sensor 14’
3-20-674101
Rope 3/16” Gasket w/PSA (Glass)
1-00-1186258229
Y
Rope 3/8” Gasket (Door)
1-00-00888
Y
Spring Washer-Plate 6MM
3-31-08558
Pre 008241201
1-00-00744
Y
Post 008241201
3-20-00844
Y
White, 1” w/Adhesive-1 Ply (Stove Frame)
1-00-88100
Y
Wiring Harness
3-20-08727
Thermister Probe (ESP Probe)
Wood Handle
Pkg of 2
Hopper Lid Gasket
Frame Jacking Screw 1/2 x 13 x 12”
Qty. 2 Reg.
1-00-00249
Y
1-00-375501
Y
3-31-00949
09/10
Service & Maintenance Log
Date Of Service
Performed By
Description Of Service
44
45
Addendum
Minimizing Smoke During Loss of Power Using Battery Back-up
harmanTM strongly recommends installing battery back-up to minimize entry of smoke into the
room in the event of power loss.
Your pellet/biomass burning appliance relies on a combustion blower to remove exhaust. A power failure
will cause the combustion blower to stop. This may lead to exhaust seeping into the room. Vertical rise in
the venting may provide natural draft. It is, however, no guarantee against leakage.
There are two HarmanTM approved battery back-up options for your appliance:
Uninterruptible Power Supply (UPS) UPS battery back-ups are available online or at computer and
TM
office equipment stores. Your Harman appliance with Rev E or later software available beginning in
TM
November 2010 may be plugged directly into a Harman approved UPS:
x
The APC (American Power Conversion) model #BE750G and the TrippLite model
INTERNET750U are tested and approved. Other brands or models may not be compatible.
When power is lost, a fully charged UPS will power a safe, combustion blower only shut-down. Your
appliance will pulse the blower every few seconds to clear exhaust until the fire is out. NOTE: The uPS
provides safe shut-down only. It is not intended for continued operation.
Your appliance will recognize when power is restored. What happens depends on ESP temperature and
whether it is equipped with automatic ignition:
x In “Automatic” setting, units equipped with automatic ignition will respond to the set point and
ESP temperature and resume normal operation.
x In “Manual” setting or for units without automatic ignition:
x If the ESP is cool, the appliance will remain shut down.
x If the fire is out and the ESP is still warm, the feeder may restart. Since the fire is out, the
ESP temperature will not rise. The unit will then shut-down, and may flash a six-blink status
error. (See ESP error codes)
x If the fire is still burning, it will resume normal operation.
Contact your dealer if you have questions about UPS compatibility with your appliance.
Harman Surefire 512H Battery Back-up The 512H connects to a 12 volt deep cycle battery that will run
your appliance for up to eight (8) hours. It includes a trickle charge feature that keeps your battery
charged when power is available. NOTE: If the power is out for longer than battery life, smoke
leakage may still occur unless your stove has been safely shut down.
CAUTION! Always keep appliance doors and hopper lid closed and latched during
operation and during power failures to minimize risk of smoke or burn-back.
CAuTION! use only harmanTm approved battery back-up devices. Other products may not
operate properly, can create unsafe conditions or damage your appliance.
46
Addendum for Burning Corn and Pellet Fuel Mixture
Harman pellet burning, free-standing stoves and inserts have been tested to ASTM E1509 for burning shelled corn
in a mixture with wood pellets. The listing approves up to a 50% corn and 50% pellet mixture. Different mixtures of
corn will have distinctively different burn characteristics depending upon moisture content and variety. The operator
should closely monitor the stove’s operation when burning a new corn/pellet mixture or a different variety of corn,
and make any necessary adjustments to feed rate. Since corn is typically higher in ash and moisture content, cleaning
and ash removal will be needed more frequently.
Operation in Stove Temp mode
Set feed adjuster to # 3. Set temperature knob to #3, Turn mode selector knob onto “Stove Temp” mode. After the fire
has lit, watch that the fuel does not feed too fast that it pushes the red glowing fuel bed off of the burn pot grate. If it
does, lower the feed adjuster setting or use a lower percentage of corn in the mixture. After the stove has burned for
10 minutes and the entire fuel bed is burning, the feed adjuster and temperature knobs may be adjusted for higher
heat output if desired. Maximum feed has been reached when the fire bed is about ½ to 1 inch from the end of the
burn pot. Settings will vary with different types, moisture levels and mix ratios of corn. If you are having difficulty burning a 50% corn / 50% wood pellet mixture, try a lower percentage of corn.
Operation in Room Temp mode
Set feed adjuster to # 2 or # 3. Set temperature knob to desired amount. Turn mode selector knob onto “Room Temp”
mode. After the fire has lit, watch that the fuel does not feed too fast that it pushes the red glowing fuel bed off of the
burn pot grate. After the stove has burned for 10 minutes and the entire fuel bed is burning, the feed adjuster may be
set to a higher output level if desired. Maximum feed has been reached when the fire bed is about ½ to 1 inch from
the end of the burn pot. It is recommended that after burning at the desired settings, turn the stove off and allow it to
cool, then turn it back on in “Room Temp” mode and watch the stove restart and verify correct operation. Settings will
vary with different types, moisture levels and mix ratios of corn. If you are having difficulty burning a 50% corn 50%
wood pellet mixture, try a lower percentage of corn.
Changes to Maintenance Schedule
Wood pellets average around 6% moisture content or less. Corn will be 14 or 15% moisture. With more moisture in
the fuel, more maintenance will be incurred. Burn pot scraping may need to be done once per day. The ash pan will fill
more quickly and may need emptied weekly. Most importantly, remove the burn pot cleanout cover weekly to clean
the air passage and the igniter element. Excessive buildup on the igniter may lead to shortened igniter life.
Venting Consideration: Check with your venting manufacturer regarding possible exclusions when a mixture of corn
and pellets is burned.
Loosen these two wing screws for access
to clean the air passage and igniter.
* For P38+ model, follow Stove Temp instructions. Keep feed rate on #3 or
above when using a wall thermostat.
Proudly Printed On 100% Recycled Paper