Harman Stove Company Accentra The Harman Accentra Pellet Insert User manual

SAFETY NOTICE
PLEASE READ THIS ENTIRE MANUALBEFORE YOUINSTALLAND USE YOURNEW ROOMHEATER. FAILURE TO
FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTYDAMAGE, BODILYINJURY, OR EVEN DEATH.
FOR USE INTHE U.S.AND CANADA. SUITABLE FOR INSTALLATIONINMOBILE HOMES
IF THIS HARMANACCENTRAPELLET INSERT IS NOT PROPERLY INSTALLED,AHOUSEFIRE MAYRESULT. FOR
YOURSAFETY, FOLLOWINSTALLATIONDIRECTIONS.
CONTACT LOCAL BUILDING OR FIREOFFICIALSABOUT RESTRICTIONSAND INSTALLATION INSPECTION
REQUIREMENTSINYOUR AREA.
CONTACT YOUR LOCAL AUTHORITY (SUCHAS MUNICIPAL BUILDING DEPARTMENT, FIRE DEPARTMENT, FIRE
PREVENTIONBUREAU,ETC.) TODETERMINE THENEED FORAPERMIT.
CETTEGUIDE D'UTILISATIONEST DISPONIBLEENFRANCAIS.CHEZVOTRECONCESSIONNAIRE DEHARMANSTOVE
COMPANY.
SAVETHESEINSTRUCTIONS.
The Harman Accentra Pellet Insert
Installation & Operating Manual
R3
“Ce manuel est disponible en Français sur demande”
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3
Introduction
Harman Stove Company
352 MountainHouse Road
Halifax,PA17032
[e-mail]@harmanstoves.com
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
Feeder Parts 36
Parts List 37
Warranty 38
The Accentra Insert will give you more heat, better temperature control and a level of convenience you won’t find in any other
pellet 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 anycorner or against anywall of your home. You canchoose from
a variety of mantels and facings that complement your homes décor.
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 technologylets you fill the hopper,
set thedesired temperature andwalk away. TheAccentra insert lightsautomatically, brings theroom up to theexact temperature
and will turn off if no heat is required. No other pellet insertoffers such accurate andtrouble free temperature control. The control
technologygives you thewidest heat output rangeof anyinsert onthe market making it an idealchoice to take thechill off in the
spring and fall and to heat your home during the coldest months of the winter.
As with all Harmanpellet stoves, maintenance is minimal and cleaning iseasy. TheAccentra Insert lets you burnclose to a tonof
pellets before ashremoval is needed. And what is even better, the Harman Insert Track Systemlets 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 reach key components for yearly cleaning.
SAFETYNOTICE: IFTHISHARMANSTOVEISNOTPROP-
ERLY INSTALLED. A HOUSE FIRE MAY RESULT. FOR
YOUR SAFETY, FOLLOW THE INSTALLATION DIREC-
TIONS CONTACT LOCALBUILDING ORFIREOFFICIALS
ABOUTRESTRICTIONSANDINSTALLATIONINSPECTION
REQUIREMENTSINYOURAREA.
Please copy your
serial number fromthe
label on your stove to
thebox below.
SERIAL NUMBER
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4
Starting First Fire
Igniter Switch to"AUTO" (up position)
Make sure the unit is plugged into a 120 VAC,
60 HZ electrical source. The powerlightshould
betheonlylightlit.
1. Turn Mode Selector to "OFF".
2.Fillhopperwithpellets.1
3.Cleanburn potwithscraper,ifnecessary.5
4. If starting after an empty hopper, turn Feed
Adjuster to "TEST"(forone 60 second cycle).2
Thiswillpurgepelletsintotheaugertubeandalso
allowyoutocheckthemotorsforoperation.NOTE:
Theaugermotor willnotoperatewiththeview
door or ash pan door open.3
5. Turn FeedAdjuster to #4.4
6. Flip the Igniter Switch up into the "AUTO"
position.
7. Turn the Temperature Dial to desired room
temperature.
8.Turn Mode Selectorto Room Temperature or
StoveTemperature.
9.Fillhopperwithpellets andremoveashesas
required.6
10. Store pellet fuel in a dryarea away from all
ignitionsourcesandabovealllimitsofthestove's
clearancerequirementstocombustibles.Donot
storethe fuel were it interferes with the refueling
of the stove oremptying of ashes. Donot store
anyashes removed fromthe stovenearthe fuel
orothercombustiblematerials.
Automatic Start Up
1.Fines aresmall pieces ofbrokenpellets(sawdust).Finesdo
notfloweasily and often buildup on the hopperfunnel bottom
angles. These fines can be pushed into the feeder opening
andthenfill the hopperwithpellets.As the systemworks,they
will be burned.
2. The "TEST" cycle will operate the feeder motor for exactly
oneminute.Turningto"TEST" again and againmay purgetoo
muchfuel intothe burnpot causing excessivesmoke on start-
up.
3.Thefireboxlowpressureswitchwill notallowtheaugermotor
or the igniterelement to operate if the view dooris 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 numberand willprobably needto beincreased.
After you know a feed rate setting that works well, use that
setting.Remember,ifyourfeed rateistoo high youmay waste
fuel.
5.Thisisusually aweekly maintenceprocedure.Cleaningthe
burn potwiththescraperwith asmall amountofnewfuel inthe
bottom isnota problem.First,scrape the ashes onthefrontof
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 outby the feeder.
6.Theash pan can holdthe ashes from approximately1 tonof
premium fuel. This means the ashes will only need to be
emptied a fewtimes a year.
7. Setting thefeed adjuster# formaximum burn:With the unit
burningin"AUTO",turnto"StoveMode"andputthefanon "H".
SettheTemperatureDial to #7.Allow the unittoburn for about
30minutes andcheckash onfrontofburn pot.Fig.4.If theash
lineis largerthan 1",turn thefeedadjuster from #4to#5. Allow
another 30 minutes of burn time and check again. If , at #6
setting,a1"orless ashbedisnotobtainable,itisnota problem.
The 1" ash bed is only a maximum burn rate and at most
normal settings the ash bed will be larger.
See Note 7.
Fig. 2
1"
NEVERUSEGASOLINE,GASOLINE-TYPELANTERN
FUEL, KEROSENE, CHARCOAL LIGHTER FLUID,
ORSIMILAR LIQUIDS TO START OR'FRESHEN UP'
AFIRE INTHIS HEATER. KEEP ALL SUCHLIQUIDS
WELLAWAYFROMTHEHEATER WHILE INUSE.
WARNING
Fig. 1
WARNING
BURNING GARBAGE, USE OF IMPROPER FUELS,
FIRE STARTERS ORALTERING THE STOVE FOR
HIGHER HEAT OUTPUT MAY CAUSE DAMAGE TO
THESTOVEANDCOULDRESULTINAHOUSE FIRE.
USE ONLY APPROVED FUELS AND OPERATION
GUIDELINES.
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5
The Accentra Insert is more thanjust automatic ignition, it is also automatic temperature
control. Theautomatic systemwillallowthefiresize tobe adjustedto matchthe heating
needs and even put the fire out if necessary. If heat is needed after the fire is out, the
Accentra Insert willautomatically re-ignite andadjust the fire size to match the heating
need.Thetotallyautomatic roomsensor modeis recommendedbecause ofits efficiency.
The unit can be switchedbetween "AUTO" and"MANUAL"at any time during operation.
Igniter switch to "AUTO"
Room Temperature Mode
In "Room Temp Mode" heat output is controlled au-
tomatically by the RoomSensing Probe. Whenthe Room
Sensing Probe calls for heat, the stove will increase out-
put. When the Room Sensing Probe is getting close to
the set temperature, the stove will begin to level off out-
put and keep the fire burning at just the right temperature
to maintain that setting.
High output is determined by the feed rate set-
ting. This setting, generally on #4, can be increased if
higher burnrates are necessary (Fig.1). The unit's maxi-
mum 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 pel-
lets fall into the ash pan.
In "Room Temp Mode" a constant fuel consumption
rate is sacrificedfor exactroomtemperature. Therefore,
as it gets colder more pellets will be burned automati-
cally.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 regard-
less of room temperature (See Fig 4). The unit's maxi-
mum 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 willgo. It willnot go out unless it runs out of fuel or is
turned off.
Shut-Down Procedure
To killthe fireor stopburningthestove, turntheMode
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 youpull the plug to shut down the stove,all motors
will stop. This may cause incomplete combustion and
smoke inthe firebox.If theload dooris openedthe smoke
may escape.
The best way to shut down the stove is simply let it
run out of pellets, then the stove willshut down automati-
cally.
Automatic Ignition/Operation
Fig. 4
Room Temperature Mode: This setting will produce a room
temperature of 70 degrees with the distribution blower at medium
speed.
This setting will produce medium heatwith the
distribution bloweron "low".
This setting willproduce continuous maximum heat
outputwiththedistribution bloweratfull speed.
Stove Temperature Mode
Fig. 3
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6
Manual Start Up
Starting First Fire
Igniter Switch to"MANUAL" (down position)
Make surethe unit is plugged into a 120
VAC, 60 HZ electrical source. The power light
shouldbethe onlylightlit.
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
controland startthecombustionmotor.
3. Turn the TEMPERATURE DIAL to the de-
siredsetting.
4. Clean burn potwithscraper if necessary.5
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 intopellets forfastlighting.
7. Light starting gel with a match, and close
the door. Operation will begin whenthe fire
reaches the propertemperature.3
8. Fill hopper withpellets and remove ashes
as required.1, 6
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 motorforexactly
one minute.Turningto"TEST"again and againmaypurge too
much fuel intotheburnpotcausing excessivesmoke on start-
up.
3. The firebox low pressure switch will not allow the auger
motoror the igniter element to operate if the view door orthe
ash pan door 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 numberand will probably needto be increased.
After you know a feed rate setting that works well, use that
setting.Remember,ifyourfeedrateistoo high youmay waste
fuel.
5.This isusually aweekly maintenceprocedure.Cleaning the
burn potwiththescraperwithasmallamountofnewfuelin the
bottom is nota problem. First,scrape the ashes onthe frontof
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.Theashpancan holdtheashesfrom approximately1tonof
premium fuel. This means the ashes will only need to be
emptied a fewtimes a year.
7. Settingthe feed adjuster#formaximum burn:Withthe unit
burning in"AUTO",turnto"StoveMode"andputthefan on "H".
SettheTemperatureDial to#7.Allow the unit toburn forabout
30minutes andcheckash on frontofburn pot.Fig. 9.Iftheash
line islargerthan 1",turnthefeed adjuster from #4to #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 isonly a maximum burn rate and at
mostnormal settings the ash bed will be larger.
Fig. 6
Fig. 7
1"
See Note 7.
NEVERUSEGASOLINE,GASOLINE-TYPELANTERN
FUEL,KEROSENE,CHARCOALLIGHTERFLUID, OR
SIMILAR LIQUIDS TO START OR 'FRESHEN UP'A
FIRE IN THIS HEATER. KEEP ALL SUCH LIQUIDS
WELLAWAYFROMTHEHEATER WHILE INUSE.
Warning
Notice when using Optional Battery Back-Up:
If a power outage is expected, change the toggle
switch to Manual Mode. The Harman 502H Battery
Backup is incapable of powering the igniter. If an
automatic ignition is attempted while the stoves is
being powered by the battery back up, it may cause
damage to both the stove and the battery backup
unit.
Fig. 5
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7
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 duringoperation.
IgniterSwitch to "MANUAL"
Room Temperature Mode
The fire will have to be lit with starting gel and a
match, or started automatically, see "Automatic Opera-
tion". Turn to "Manual" position when the fire is estab-
lished.
The difference between "AUTO" Room Tempera-
ture Mode and "Manual" Room Temperature Mode is
that thefire willnotgooutasthe roomtemperature 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.
IgniterSwitch to "MANUAL"
Stove Temperature Mode
The advantage of this mode is to allow the opera-
torto havea largeviewingfirewithoutblowingextra heat
into the room.
During operation, with the temperature dial set at
#5 or less, the distribution fan will not operate. A#5 on
the temperature dial and a #5 on the feed adjuster is
approximately 80% output. It is not necessary to oper-
ate 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.
Anexample of whento use the ManualStove Tem-
perature Mode is if you want to watch a large fire and
the room is aleady up to temperature. The Stove Tem-
perature Mode allows you to have a larger fire and a
lower sound level, without the distribution blower.
NOTE:Duringtheuseof thismode,ifyou keep
increasingthe temperature dial settingto increase
the fire size,thedistribution blower will automati-
callycome on when the ESPTemperature reaches
350oF, or 81%output.
NOTE: When starting the unit in the "AUTO"
mode and switchingto "MANUAL",thefiremust be
large enough to start the distribution blower. The
startingof theblower isasignalthat the start cycle
is completed and the fire will not go out.
Manual Ignition/Operation
Room Temperature Mode: This setting will produce a room
temperature of 70 degrees with the distribution blower at medium
speed.
This setting willproduce alarge viewingfire without a
distribution blower operating.
Fig. 9
Manual Stove Temperature Mode
Fig. 8
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8
ESP Control
Status light error messages:
1 Blink:Indicates controlboardselfdiagnostic fail-
ure. This requires a manual reset*.
3 Blinks: Indicates ESP (Exhaust Sensing Probe)
failure. This requires a manual reset*.
4 Blinks:Canoccur onlyinRoomTempMode and
indicates Room Sensing Probe failed or not in-
stalled. If a Room Sensing Probe is then installed,
the status light will automatically reset.
NOTE: Unit willnot 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
startcycle. Toreset- TurnModeSelector to "OFF",
then turn to either mode again.)
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 24, for more details.
* Manual reset- disconnect power cord for a few
seconds andreconnect. If error stilloccurs callyour
Dealer.
Feed adjuster
Sets the maximum
feedrate
Test
Runsallmotorsatfull
speedforoneminute
to check operation.
Aftertwominutes the
stove will go to
minimum burn and
the blowers will
alternate fromhighto
lowevery minute to
remind youthatyou
are still in "Test
Mode".
Igniterswitch
Settoappropriate
Start-Up mode.
Distribution Blower
speedadjustmentrange.
L = low
H= high
Variablespeedanywhere
between L and H;
although as the stove
temp. goesup ,so does
the L andH scale.
Temp dial
Allows you to adjustthe room temperature in Room Temp
Modeusing the outerscalemarked indegrees Fahrenheit.
Italso allows you to adjust the stove temperature while in
Stove Temp Mode usingthe innerscale markedfrom 1to7.
Mode Selector
Allowsyoutochoosebetween
Room Temp Mode, Stove
Temp Mode, or OFF. Also
allows you to vary the
distribution blower speed by
turning the knob to the high
orlowside ofeach mode.
Power Light
Indicates powertothe
control.
Indicates powertothe
feedmotor.
Indicates igniter is on.
Indicates power to
combustionblower
Status Light
Will belit ineither stove
orroom tempmode when
pointeris notwithin off
positionband except
after normalshutdown.
Blinks to indicate errors
listed below.
Indicates powerto
distribution blower.
DealerDiagnostic Port
For dealer maintenance
only. RequiresspecialDDM
monitorsuppliedtoHarman
Dealers exclusively.
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9
Topand LidAssembly
Center
Medallion
Flame Guide
Heat
Exchanger
Cover
Ash Pan
(2)SpringLatches
(One oneach side)
Fig. 11
Installation: Removing unit from skid
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 inthe "OPEN" position
before the top/lid assembly can be lifted off or
reinstalled on the stove body.
• Thereare(4)1/4-20 x1/2"flange headbolts securing
the top/lid assembly to the stove body. They can be
removed from the underside with a 3/8" socket.
The casttop and lid assemblybolt 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.
Internal
Cast Iron
(4) pieces
MountingShell
ProtectorAngles: Theseangles aredesigned to
protect the blower motor from damage when
placed on a flat surface. Be careful where and
how the stove body is handled.
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.
DistributionBlower
Boltsrequirea
3/8" socket.
(View looking upunder the casttop.)
Top bolt down bar
Fig. 10
Fig. 12
Remove the cast side panels by lifting them upward
off of the hinge pins. See Fig. 13.
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10
Installation
2. Remove the door by swinging it open approximately
90oand lift it upward until it clears the hinge pins.
3. Remove the ash pan
4. Remove the (4) internalpieces of cast iron.See Fig.
14 and 15.
How to ReducetheWeight for Installation,cont'd
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 approxi-
mately 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.pproximatlely
12”, but the left side tube requires the total length of the
brush to be used.
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.
• Tipthe top of the heat exchanger toward the middle of
the opening untilit can be lifted up and out.
Center Medallion
Flameguide
BurnPot
3rd: DOWN
3rd: DOWN
1st:UP 2nd:OUT
2nd:OUT
1st:UP
Fig. 14
Lasered hinge pin
pivoting point
Up and down clearance
adjustment slots.
Cast side
panel hinge
Fig. 13
Liftingtab
Fig. 15
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11
Installation
IMPORTANT: The mounting frame/surround
assembly and flue piping is the most critical part of
theinstallationandmustbedone correctlyandinstalled
securely.
1.Choosethechimneyconfigurationthatisbestsuited
for the installation. See venting section.
• Note: If 100% outside air is desired or required, the
outsideair optionwillneedto beinstalledonthe stoves
body. (See instructions included with outside air kit
(part #1-00-674080.)See Page 20.
2. Make sure the unit will fitinto the fireplace opening.
See Fig # 17. When installing in smaller fireplaces,
test fit the mounting frame into the firebox. Note: The
unit overhangs to the rear.
3. Install the 3 piece cast surround set to the sides
and top of the mounting frame with the bolts and nuts
supplied. Theleftandrightside shouldbedone before
the center section is installed. Make sure the bolts
are loose. Do not remove the side panel hinges. The
left andright side wings shouldbe standingupaligned
with the side of the mounting frame and slid inward
towards the center.Note:Thewings mountonthe 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.
Beginning Installation 3" Outside Air
startercollar
NOTE:Thestovebody extendsthroughthemountingframe
inthe rear approximately 2".
Approximately 2" overhang
Fig. 16
Fig. 17
Notch
Cast in front of
the frame. Use
(1)1/4-20 x 3/8
flangebolt from
therear.
Castbehind the
mounting frame
flange. Use (2)
1/ 4 -2 0 x5 /8
flange bolts and
nuts with bolts
fromthe front.
Fig. 18
Slide the ash lip
casting into the
frame, making
certaintheash lip
is sitting on the
slide rails on
either side. With
the ash lip in
place, adjust the
surroundsides so
there is an even
gapwheretheash
lip extends into the
surround side and
tighten. Fig. 19
Ash lip slide rails
4. If the wing extensions are required they should be
installed next.
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12
Installation
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 fromthe 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 tyraps looping the cord to the left
• Reroute the cord along the top of the steel angle and
down the right side.
• Re-tyrap (not supplied by Harman) the wire through
thenotches providedinthemountingframe.Thendown
the right side rail.
• Do not remove or move the cord retainer, it is made
to reach both the right and left sides.
Nothing can ex-
tend beyond this
face to the back
side. DO
NOT
CUT.
Connecting the cord retainer to the wing
With the three wing pieces completed, the cord re-
tainer 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 leftwing there
is a small radius indent for the cord to exit between
the wing and the fireplace face.
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 longblack 2 wire cable must be Ty-rapped
to the powercord. This wire is long enough to reach the
end of the power cord so the installer can reach past
the hearthto the location where the extensionwire (18/
2 thermostat wire, not supplied by Harman) can be
spliced to go to the wall location chosen for the room
sensor.
Ground
Ty-raps
Fig. 21
Fig. 22
Fig. 23
Optional Wing Extensions
Optionalwing extensions are made for fireplace open-
ings which are larger than the cast wing. The 3 piece
wing extension is 48" wide by 34"high.
Custom oversized wing extensions can be purchased
fromHarmanfor anyfireplace openings larger thanthe
standard wing extension area.
These optional wing extensions will have a 1/2 inch re-
turn bend as shown in fig. 20. Custom oversized wing
extensions with a radius top can be ordered with a ra-
dius of your choosing. These radius top wings WILL
NOT have a return bend, although they will be made of
thicker metal to reduce warpage.
Fig. 20
1/4-20 x3/8
bottomhead bolts
(5/32"allenwrench) (5/32"allenwrench)
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13
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 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
andservice.Therefore,if theroomsensoris 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.
Connectingthe roomsensoras a return airsensor
• Insert the sensor end of the wire from the rear of the
mounting frame through the hole as shown in fig. 24 .
• Tyrap the sensor end so that the sensing tip is in the
middle of the front return air opening. See Fig. 25.
• Tyrap 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 ter-
minal connection to the twisted blue wires.
Thereare(2) crimp-on connectorsinthehardware pack
that must be installed on the internal ends of the room
sensor wires.
Side ReturnAir Holes
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 leveing 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.
R3
Fig. 24
Fig. 25
3/8 x16 tapped
levelingbolt holes
Fig. 26
1/2" threaded
wedgingrods
(5)boltdownholes
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14
9. Install the completed frame/surround assembly into the
fireboxand level/plumbthe wingto the fireplace faceusingthe
leveling bolts as jacks.
* Ash protection must be used from hearth opening to 6" in
front of door glass and 6" to each side of the stove body to
protect any combustibles from hot ashes. A minimum size
will be 16.5" deep by 30" wide and be made of a non-
combustible materialor meetUL approval.
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 liftingupward off of the rails asthe ashlip isslid inward.
Asmallclearance ofabout 1/16"is anideal spacebetween the
legsoftheashlipandthehearth.Thiscast ashlipisa decorative
part that does not andshould notsupport any weight.
11. Tightenthe (2)1/2" threaded wedgingrods upagainst the
lintel of thefireplace opening. It is also recommendedto use
some formofanchoringscrews throughthe bottomofthe shell
into thehearth. There are upto 5 holes provided.Note: Itis a
good idea to check the ash lip again. The frame may have
shiftedwhenthe finalanchoringwascompleted. Seefig. 26.
12. Complete the flue piping, and outside air piping, if used.
Makesurethedamper areais sealed.
CAUTION: IF THE STAINLESS STEEL FLUE PIPE DOES
NOT EXTEND FAR ENOUGHABOVE THE OLD DAMPER
OPENING, MAKE SURE THE FIBERGLASS INSULATION
DOES NOT EXTEND UPWARD AND COVER THE PIPE
OUTLET.
WARNING DONOT CONNECT THIS UNITTO ANYAIR DIS-
TRIBUTION DUCT OR SYSTEM.
13.Ifarearexitflueconfigurationisused,withorwithout outside
air,makesurethefluepipeterminationclearancesare followed
as per themanufacturers recommendations.
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 2x4's supported in front of the hearthwill make
this job easier.' See Fig. 31.
17. Complete thefollowing electricalconnections (Caution:
Disconnect the power cord.) There are 5 connections that
must be completed. See Fig. 33 & 34.
Installation
Flue PipeStubAssembly
There are three different diameter flue pipe stub
assemblys.
1. The unit comes standard with the largest for use with 4”
stainless steelflex pipe.
2. Part #1-10-082745 for use with 4” PL vent starter pipe.
3. Part # 1-10-674039 for use with 3” PL vent starter
pipe and also for use with 3” aluminum flex duct for out-
side air connections.
The flue stub assembly base is a round plate which al-
lows it to swivel to allow the flue pipe to exit the mount-
ing frame in other positions rather than straight up. See
fig. 28.
Fig. 28
Pre-cut ceramic insulationand (2)pieces of tie wire.
Fig. 27
Ash lip
mounting
rails
Twisted tie wire
With larger flue pipes this bottom edge of the insulation will
needto be trimmed to complete the wrap.
This picture shows the completed
insulationwrappedaround theflue pipe
fromthemountingframe upward.
Fig. 29
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.
(from glass)
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15
Installation
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 ter-
minal ground.
• Ifserviceis performedonthisstove,thisground
connection must be the first one on and the last
one off.
Fig.31
Fig. 32
Fig. 33
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.
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.
2 x 4
Lasered hinge pin pivoting point
Up and down clearance adjustment slots. Cast side
panel hinge
Fig. 30
16. Placethe stovebody onthe mountingshellgasketed
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),ora pairof 2x4'ssupportedinfrontofthehearth
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.
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16
Installation
Connecting the RoomSensor
Connecting the roomsensor 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.”
Hopper Seal
Inspectthe silicone sponge hopper to top sealgasket.
Lookfor tears or areas where the gasketmay notseal
properly to the bottom of the cast top. This only needs
to be done whenthe topis removed. This is NOT nec-
essary if the cast top is not removed. (Not part of any
monthly, semi-annual or annual maintenance.)
Fig. 34
Fig. 35
DockingGasket
Everytime 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.
Fig. 36
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 unit, then
close itto keep fromgetting pinchedin 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 8, 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, unplug the unit.
21. Inspect the flue docking gasket. See Fig. 36.
Hopper sealgasket (grayor orange)
18. Installthefrontdoor.Checkthelatchandgasketing.
Docking Gasket
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17
Installation
Cast SidePanel 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 topandbottomspacingcanbe adjustedbyloos-
ening 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 chang-
ing 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 noticable.
• It is very important that the cast side panels open
and close freely for good control board access.
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 8, Fig. 12.
24.Install and adjust the side panel magnets.
• Inthe hardware packare (2) magnets, (2) spacers and
(2) 10-32 x 1 1/4" bolts and nuts.
• Bolt the magnets through the cast iron hole provided.
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
canbe slidin andout easily. The cast ashlip canremain
in place at this time. Note: The cast side panel hinges
canbe movedupwardif necessary to gainclearance for
the cast ash lip.
Fig. 37
Fig. 38
Spring Latch
Latch Hole
Magnet
Magnet
Fig. 39
Fitcast
top/
hopper
lid
parallel
with
surround.
Side panel gap
Fitcast
top/
hopper
lid
parallel
with
surround.
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18
Wiring
Always disconnectthepowercord beforethe unit
is pulled fromthe mounting frame.
As youcan see, the controlboard 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 wiringharness of the 11 pinsock-
ets (large white flat plug where all of the power wires
terminate.)
• Always inspect the wiring harness where the wires
transfer fromthe controlto the rear inside of the body.
• Make sure there are no wornor frayed areas.
Installation
Inspectthewiringharnesstransitionarea:Thisis thearea
thatcomes closesttothe mounting frame asthe unitisslid
in and outofthe frame.
11pin
socket
on rear
ofcontrol
board
6 amp
glass
fuse
Fig. 40
Hopper lid foam
gaskets
Cast Top
Fig. 41
Log Set Option
Fig.42
Fig. 43
Install the log bracket with the two thumb screws
provided.
Center the log inthe fireboxopening withthe bottom
front edge over the thumb screws. The log branch
tips only rest on the bracket arms for easy installa-
tion and removal.
IMPORTANT NOTE: BEFORE CLEANING THE
HEAT EXCHANGERS, THE LOG AND THE
LOG BRACKET MUST BE REMOVED.
REMINDERS
• Donot allow pellets orsawdust tobuild upon the
hopper lip.
• Inspect the hopper lid gasket for damage. A good
hopper lid seal is veryimportant for proper opera-
tion.
Thumb
Screws
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19
These units are pre-tested at the factory with
exactly 120 VoltsA.C., 60 Hz. Theyare 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 mayberequired.Thefactorylow draft
settingmaynotbe correctfortheunits 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 adjustmentis providedto
allowthe unitto be adjustedfor the householdvoltage
where the unit is going to be in permanant operation.
NOTE: The linevoltage varies fromarea 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
causeasafetyconcern.Ifthe unitis adjustedtoo high,
only effiency 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.
After the installation is completed but before the first fire is lit,
check and record the high and low draft readings.
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. Withthe 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 is up, 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 slowbefore checkingthe
low draft.
6. If the low draft is between .30 and .35, record the
reading_____in. W.C. If the readingis higher, slowly
turn the set screw counter-clockwise until the draft
lowers. If the reading is lower,very slowlyturn the set
screw clockwise until the draft increases.
NOTE:The testmode alternatesfromhigh 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.
Combustion
Motor Speed
Control
Low draft only
set point.
The small
straight
screwdriverslot
is plastic;
therefore, the
unit can be
adjustedwhile
in operation.
Fig.44
Low Draft Voltage Adjustment
Draft Meter bolt hole location
The head of the plugbolt can be accessed through
the bottom distribution air inlet with the cast ash lip
removed.
Fig. 45
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20
Mobile Home Installation
CAUTION
THE STOVE IS HOT WHILE IN OPERATION.
KEEP CHILDREN, CLOTHING AND
FURNITUREAWAY. CONTACT MAY CAUSE
SKIN BURNS.
KEEP COMBUSTIBLE MATERIALS SUCH
AS GRASS, LEAVES, ETC.AT LEAST 3 FEET
AWAY FROM THE POINT DIRECTLY UNDER
THE VENT TERMINATION.
WARNING
When installing and operating your Harman
Accentra Insert, respect basic safety standards.
Readtheseinstructions carefullybeforeyouattempt
to install or operate the Accentra Insert. Failure to
do so may result indamage to propertyor personal
injury and may void the product warranty.
Consult with your local building code agency
andinsurance representativebefore youbeginyour
installation to ensure compliance with local codes,
includingthe needfor permits and follow-upinspec-
tions.
CAUTION:This appliance must be vented
to the outside.
Due to high temperatures, this stove should
be placedout of traffic and away fromfurniture 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.
Clothingand 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 annu-
ally by a qualified service person. More frequent
cleaning will be required. It is imperative that control
compartments, burners, and circulating air pas-
sageways of this stove be kept clean.
Safety Reminders
Mobile Home Installation
Mobilehome installation should bedone in
accordance with the Manufactured Home and
SafetyStandard (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 for the out-
s ide a ir. S e e pa ge 21.All mobile home ins ta lla tions
re quire the us e of o uts ide a ir, this will incre a s e the
he a ting e fficie nc y of the unit a nd ke e p it from s uffe r-
ing a ny e ffe cts a s s oc ia te d with room a ir s ta rva tion
s uc h a s poor combus tion a nd or e rra tic ope ra tion.
P e riodica lly c he ck the a ir inle t for a ny obs tructions
s uch a s s no w or ice build up.
Kitche n e xha us t fa ns , c lothe s drye rs a nd
othe r s imila r de vice s ma y ca us e imprope r ope ra tion
of the pe lle t s tove , if, while in us e it ke e ps the room in
a ne ga tive pre s s ure thus a llowing pipe joints not com-
ple te ly s e a le d to le a k e xha us t into the room. Be s ure
to a llow a de qua te ve ntila tion while us ing s uch a ppli-
ances
3 . F lo o r pr o te c tio n a nd c le a r a n c e s m u s t b e
followe d.Floor prote ction a nd c le a ra nce s to c ombus -
tible s mus t be followe d a s pe r ins ta lla tion ins truc tions
for the s tove . C le a ra nc e s ma y o nly be re duce d by
me a ns a pprove d by the re gula tory a uthority.
4. Unit mus t be grounde d to the me ta l fra me of the
mobile ho me .
5. S moke a la rms a nd s moke de te c tors a re re com-
me nde d to be us e d with wood a nd bioma s s fue le d
s to ve s . W he n ope ning the fire box door s ome e x-
ha us t ma y e s ca pe into the room a nd s et off the a la rm.
If this s hould ha ppe n ve ntila te the room to re move
the s moke a nd re s e t the a la rm, if the a la rm would go
off whe n no o ne wa s working with the s tove ve ntila te
the room a nd ha ve your home c he cke d to find the
s ource of the le a k.
CAUTION
THE STRUCTURAL INTEGRITY OF THE
MOBILE HOME FLOOR, WALL, AND CEILING/
ROOF MUST BE MAINTAINED.
WARNING
USE OF IMPROPER FUELS, FIRE STARTERS
ORALTERING THESTOVEFORHIGHER HEAT
OUTPUTMAYCAUSEDAMAGETOTHE STOVE
AND COULD RESULT IN A HOUSE FIRE. USE
ONLY APPROVED FUELS AND OPERATION
GUIDELINES WARNING
DO NOT INSTALL THIS UNIT IN ANY
SLEEPING ROOM
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21
A combustion blower is used to extract the com-
bustion 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" StainlessSteel Flex: 30 Linealft. Vertical*
4" PL Vent Pipe:
4" PlVent Pipe: 30 Linealft. Vertical*
4" Pl Vent Pipe: 14 ft. Vertical w/1-90oand 12 linealft. horizontal*
If additional 4" PL Vent fittings are required, the overall
length must be reduced by:
Vertical 90oor T: 2.5'
Vertical 45o : 1.5'
Horizontal 90oor T: 5.0'
Horizontal 45o : 2.5'
3" PL Vent Pipe:
20 Linealft. vertical*
8 Linealft. verticalw/1-90o& 8lineal ft.horizontal*
If additional 3" PL Vent fittings are required, the overall
length must be reduced by:
Vertical 90oor T: 2.0'
Vertical 45o : 1.0'
Horizontal 90oor T: 4.0'
Horizontal 45o : 2.0'
* Longruns of flex or PL vent pipe installed directly vertical from theflue stub
may require more frequent cleaning due to fly ash falling off inside and
collecting directly abovethe combustion blower outlet.
Any use of horizontal venting will require more frequent cleaning. It is the
responsibility ofthe installer to makesure allflue configurationare 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 chim-
neys. All pellet vent pipe whether flex type, PL or an-
other approved type must be secured together either
bymeans providedbypipe manufactureror by3 screws
at each joint.
DO NOT INSTALL A FLUE DAMPER IN THE
EXHAUST VENTING SYSTEM OF THIS UNIT.
DO NOT CONNECT THIS UNIT TO A CHIMNEY
FLUE SERVING ANOTHER APPLAINCE.
Venting
+ =Positive static pressure
= Negative static pressure
Fig.46
Inside hopper
Inside
firebox
In flue pipe
Infan
chamber
&
starter
collar
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