Harman DVC-500 Installation instructions

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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 HARMAN STOVE IS NOT PROPERLY INSTALLED, A HOUSE FIRE MAY RESULT. FOR YOUR SAFETY,
FOLLOW INSTALLATION DIRECTIONS.
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
HOME HEATING.
SAVE THESE INSTRUCTIONS.
The Harman DVC-500 Coal Stoker
Installation & Operating Manual
R13

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This appliance is also approved
for installation into a shop.

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INDEX
Warnings 4
Introduction 5
Assembly 6
Installation 7
DVC500 Microprocessor Control 15
Operation 17
Maintenance 19
Fuel 23
Wiring Diagram 26
Control and Safety Sensors 27
Parts 28
Specications     29
Troubleshooting 30
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.
SUITABLE FOR MOBILE HOME INSTALLATIONS.
SAVE THESE INSTRUCTIONS
Harman Home Heating
352 Mountain House Road
Halifax, PA 17032
harmanstoves.com

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Always empty the hopper when not burning
for more than a week. When left standing
for long periods with wet coal, the pusher
block will rust and corrode, causing it to
seize. If the stoker is then turned "on",
damage to the pusher assembly and feed
motor could result. This will be considered
neglect and will void the warranty on those
parts. Always check to see that moving
parts are free before using, if the unit has
not been burned for a period of time. This
can best be determined by watching the
cam block and pusher arm inside the right
rear side door.
Freshly delivered coal is watered down to elimi-
nate dust when loading and unloading. Wet rice
coaldoesnotowaswellasdampordrycoal.
We do not recommend burning wet coal; how-
ever, we realize if it's the only coal you have,
it is better to burn it than be cold. If you must
burn wet coal, the feed rate must be increased
inordertogetthesamesizere.Asthewet
coal in the hopper dries out, the feed rate must
be decreased. Loading wet coal once or twice a
year will not damage your stove as long as it is
hot and burning. The damage is caused when the
hopper has wet coal in it when the stove is cold.
This will cause rust and corrosion and it is totally
the operator’s fault. Usually after the coal dries
for three or four days, depending on conditions,
itwillowverywellandfeedproperly.Feed
rate will be the same as with dry coal.
Wet Coal
WARNINGS
(Never sleep in the same room with any coal burning stove.)
Carbon Monoxide (CO) Awareness
Carbon monoxide, referred to as CO, is a
colorless, odorless gas that is produced during
combustion of coal and other fuels. CO fumes
are toxic and can be fatal.
The DVC 500 is a closed loop system spe-
cially designed to prevent the escape of CO and
other combustion products from the stove.
Even though this stove is designed to be as
safe as possible, it is important that you install
a CO detector. This is true for oil, gas, or wood
burning products as well.
CO detectors are very sensitive and may
sound an alarm for fumes other than CO or CO
from sources other than the stove such as car
or lawn mower exhaust.
If the alarm sounds
1. Increase ventilation by opening windows
or doors.
2. Make sure the stove doors and hopper lid
are closed and latched.
3. Check stove for electrical power and normal
operation.
4. Check for false alarm.
Always Empty Hopper
Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter uid, or similar liq-
uids to start or “freshen up” a re in this heater. Keep all such liquids well away from the heater
while it is in use.

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INTRODUCTION
This remarkable design by Harman features the
Verti-owDirectVentStokerSystem.
 This unique, high efciency unit uses only
outside air for combustion.
Micro-processor controls provide for an au-
tomatic wide range of heat output from 7,000 to
75,000 BTU .
With a big 93 pound hopper capacity, this unit
can burn on high approximately 16 hours or extend
for over 96 hours on low.
ARoom Sensor connected to the micro-proces-
sor automatically adjusts the feed rate to compensate
for changes in temperature.
The ash pan is large enough to hold the ash
from one hopper full of coal at any setting.
The DVC 500 is the most advanced coal
stove ever put into production. However, there
are places where it should not be installed. If the
end of the ue pipe is:
1. Less than 8 feet from an air intake.
2. On the side of the house where a window is
left open for sleeping.
3. Less than 5 feet from a door.
4. Less than 7 feet above and 3 feet away from a
public walkway.
5. Less than 3 feet above ground level.
6. Between two building less than 10 feet apart.
It is recommended that the end of the ue
pipe terminates at least 12 inches away from the
side of the building in order to minimize any y
ash build-up.
Mobile home installations should be done in
accordance with the Manufactured Home and
Safety Standard (HUD), CFR 3280, Part 24.
DAMP COAL SHOULD NOT BE
LEFT IN THE HOPPER OF A COLD
STOVE.

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Assembly
1. Install the hopper latch as shown at left.
2.Install3rebricksonthecastironanglebehind
the grate as shown.
3. Cement in grates as shown below. This may
already be done at the factory.
4. Install the front door and latch it closed.
3 Bricks
Grate
Inserts
g. 3

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4 GLASS RE-
TAINER CLIPS 4 GLASS
RETAINER
BOLTS
GLASS
GLASS GASKET
DOOR
HINGE PINS
BRASS HANDLE
HANDLE BOLT
WOOD HANDLE
PAW BOLT
SET SCREW
Door Glass
* Rope the glass carefully to insure proper seal-
ing.
* Apply the rope exactly along the edge of the ex-
ternal face of the glass, not overhanging or pressed
too far in from the edge.
* Make sharp 90o turns at the corners.
* Tightly join the ends of the rope at the upper left
or right corner.
Glass Retainer Clips
* Use the glass retainer clips and screws supplied
in the door kit.
* Use a 1/8" Allen wrench to tighten the glass clips
to cast door with 10-24 x 3/8" screws supplied.
Paw Bolt
* The paw bolt should be turned into the door from
the inside approximately 14 turns.
* With the set screw removed, turn the brass elbow
onto the paw bolt approximately 5 turns, or until a
1/16" clearance is achieved between the elbow and
thedoorface(makesuretostopontheatspotof
the paw bolt).
* The set screw on the brass elbow must be aligned
tocontacttheatspotonthepawbolt,thentighten
using a 5/32" Allen wrench.
* After attaching the door handle, close and latch the
door by turning the handle to the six o'clock position.
During this process observe to see that the door rope
is being compressed properly.
* If it does not compress, loosen the set screw and
turn the paw bolt one additional turn into the door.
Repeat as required to insure a tight seal.
Door Assembly/Installation Tips

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Tips On Installation
Before the positioning of the unit can be de-
cided a few questions should be considered?
1. Can the unit be vented properly and installed
safely?
2. Will exhaust be vented where fumes can build
up or be drawn into lower levels of the structure
3.Willfumesandyashaffecttheexteriorofthe
structure or surrounding structures?
4. Are there any local regulations governing the
use and placement of the unit?
5. Are there any structural reasons why the unit
cannot be placed where you want?
6. How close is the electrical outlet?
Floor Protector
This stove should be placed on a non-combus-
tibleoorprotectorextending16inchestothefront,
8 inches to the sides, and 1 inch to the rear.
Straight Through Wall
1. When positioning of the unit has been decided,
use measurements on Page 10 for cutting the hole
throughthewall.Don’tforgettogurethethick-
nessoftheoorprotectorused.
2. Cut at least a 9" x 9" hole through the wall.
3. Remove the side doors / rear cover assembly
(6 black screws, 5/16" socket or straight screw-
driver)
4. Place the unit in front of the hole approximately
1/2" closer to the wall than the length of the wall
termination. (From outside of wall to back of unit
where termination bolts up)
5. Take the wall termination outside and slide it into
the hole until it mates to the rear of the unit. Go
inside and install the bolts and tighten, making
surethegasketisinplaceandtheuepipesec-
tion is level.
6. Reposition the unit inward until the stainless steel
intake section comes against the outside wall
surface. NOTE: If the wall is over 8" thick you
will need a longer wall termination. The standard
termination will provide 3" of wall clearance
behind the stove, with a 8" wall. Therefore, with
a 5" thick wall, it will provide 6" of clearance
behind the stove.
INSTALLATION
DO NOT INSTALL A FLUE DAMPER IN THE
EXHAUST VENTING SYSTEM OF THIS UNIT
DO NOT CONNECT THIS UNIT TO A CHIM-
NEY FLUE SERVING ANOTHER APPLIANCE.
INSTALL VENT AT CLEARANCES SPEC-
IFIED BY THE MANUFACTURER
g. 6
g. 7

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7.Checktheexterioroftheterminationforbestt
and screw to exterior and caulk with high grade
exterior caulking.
8.Completeanyotherexterioruepipingneces-
sary, using 4" pellet venting.
9. Back inside, place the 2 halves of the interior
walltrimplateoveruepipe.Usingtheblack
pop rivets, fasten together, then slide it against
the wall and fasten it to the wall.
10. Replace the side door / rear cover assembly
with 6 black screws.
11. Complete the unit assembly and test.
Wall Trim Plate
Wall Trim Plate
Gasket
Wall
Termiation
Installation
Open
CAUTION:
THE STRUCTURAL INTEGRITY OF THE
MOBILE HOME FLOOR, WALL, AND
CEILING/ROOF MUST BE MAINTAINED.
WARNING:
DO NOT INSTALL IN MOBILE
HOME SLEEPING ROOM
Standard Wall
Termination
g. 9
g. 8

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Installation