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Installation & Operating manual
The harman dvC-500 Coal Stoker
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SAFETY NOTICE
PlEASE rEAd ThIS ENTIrE mANuAl bEFOrE YOu INSTAll ANd uSE YOur NEw rOOm hEATEr. F AIlurE
TO FOllOw INSTruCTIONS mAY rESul T IN PrOPErTY dAmAgE, bOdIl Y INjur Y, Or EvEN dEATh.
SuITAblE FOr INSTAllATION IN mObIlE hOmES.
IF ThIS hArmAN STOvE IS NOT PrOPErl Y INSTAllEd, A hOuSE FIrE mAY rESul T. FOr YOur SAFETY,
FOllOw INSTAllATION dIrECTIONS.
CONTACT lOCAl buIldINg Or FIrE OFFICIAlS AbOuT rESTrICTIONS ANd INSTAl
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2 LISTED SOLID FUEL BURNING ROOM HEATER - MODEL: “DVC 500” Serial Number: WHI- W/N 03625 TESTED TO: ASTM E1509, and parts of UL127 DO NOT REMOVE THIS LABEL. TEST DATE: July, 1996 APPROVED FOR USE IN MANUFACTURED HOMES. pREVENT HOUSE FIRES: kEEP DOORS AND HOPPER LID CLOSED DURINg OPERATION. INSTALL AND USE ONLy IN ACCORDANCE wITH MANUFACTURER’S INSTALLATION AND OPERATINg INSTRUCTIONS. CONTACT LOCAL bUILDINg OR FIRE OFFICIALS AbOUT RESTRICTIONS & INSTALLATION INSPECTION REqUIREMENTS IN yOUR AR
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3 INDEX Warnings 4 Introduction 5 Assembly 6 Installation 7 DVC500 Microprocessor Control 15 Operation 17 Maintenance 19 Fuel 23 Wiring Diagram 25 Control and Safety Sensors 26 Parts 27 Specifications 30 Troubleshooting
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4 WARNINGS Carbon Monoxide (CO) Awareness Carbon monoxide, referred to as CO, is a CO detectors are very sensitive and may colorless, odorless gas that is produced during sound an alarm for fumes other than CO or CO combustion of coal and other fuels. CO fumes from sources other than the stove such as car are toxic and can be fatal. or lawn mower exhaust. The DVC 500 is a closed loop system spe- If the alarm sounds cially designed to prevent the escape of CO and 1. Increase ventilation by
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5 INTRODUCTION This remarkable design by Harman features the Verti-flow Direct Vent Stoker System. This unique, high efficiency 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. A Room Sensor connected to the micro-proces- sor automatically adjusts the feed rate to compe
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6 Assembly 1. Install the hopper latch as shown at left. 2. Install 3 firebricks 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. 3 Bricks Grate Inserts fig. 3
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7 Viewing glass The glass in your Harman stove is a special ceramic glass. • Do not abuse the glass by striking or slamming the door. • Never burn the appliance if the door glass is cracked or broken. • Replace only with Harman supplied glass. Soot and/or fly-ash may accumulate on the viewing glass, and will ocassionally need to be cleaned. Clean the glass with a soft cloth and mild glass cleaner. Do not spray cleaner on hot glass, and avoid the use of abrasive cleaners. Glass replacement
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8 INSTALLATION 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 fly 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 u
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Installation 9 7. Check the exterior of the termination for best fit WARNING: and screw to exterior and caulk with high grade DO NOT INSTALL IN MOBILE exterior caulking. HOME SLEEPING ROOM 8. Complete any other exterior flue piping neces- sary, using 4" pellet venting. 9. Back inside, place the 2 halves of the interior wall trim plate over flue pipe. Using the black pop rivets, fasten together, then slide it against CAUTION: the wall and fasten it to the wall. THE STRUCTURAL INTEGRITY
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Installation 10
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Installation 11 Basement Installation Wall Termination To install a DVC 500 in a basement you will need additional DVC vent sections. These sections are made with a 316-grade stainless steel liner and Tee with cover plate a 20 gauge galvaneeled outer shell. Each joint is sealed with a gasket and is bolted together with 4 bolts. In order to maintain the best seal, there are no adjustable sections. There are straight, 45 degree, and Tee fittings. Refer to Page 14 for all of the sec- tions
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Installation 12
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Installation 13
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Joint Cover Installation 14 Harman Direct Vent Coal Flue Pipe Venting System 1" Clearance to Combustibles Exterior Termination for wall thickness up to 8 inches 9-5/8" Gasket 8-3/4" 45° "T" 12" 1-10-08314 1-10-08313 3-44-06256 1-10-08310 13" 9" 6" 1-10-08317 1-10-08315 1-10-08321 8" 12" 1-10-08316 47" 1-10-08320 37" 11" 1-10-08326 27" 1-10-08319 10" 1-10-08323 1-10-08324 1-10-08322 1-10-08318 Exterior Termination for wall Exterior Termination for wall Spacer 3/16" thickness up to 1
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Operation 15 ESP CONTROL Feed Adjuster Sets the maximum feed Power Light rate, 1 to 5 Indicates power is "on" to the control. Test Runs all motors at full speed for two minutes to check Status Light operation. After Will be lit in either Stove two minutes the or Room Temp Mode when feeder stops and the pointer is not within "off" distribution blower position band except after alternates from high normal shut down. Blinks to low every four to indicate errors listed seconds to re
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16 Hopper Lid Latch ESP Control Glass Door Latch Handle Side Panel Latch Ash Door Latch Handle
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Operation 17 Testing Operation: Turn the Feed Adjuster to "Test" mode, (fig. 13.) This will cause all motors to run 100% for 2 minutes. The lights on the control panel will be lit for each motor. If you leave it on "test" the blowers fig. 13 will cycle as an audible reminder. Starting Fire: 1. Fill the hopper with dry coal. NOTE: Remove Test Position all coal from hopper ledge. (fig 17) 2. Fill burn-grate area from firebrick to front of grate with about one inch of (DRY) coal. 3. Plug i
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18 Operation Keep coal off Fig. 16 ledges Fig 17 When to use "Stove Temp Mode" In "Stove Temp Mode" the control will regulate the fire to match a constant exhaust temperature, This setting will produce medium heat with the Dis- based on the #1 thru 7 settings on the inner portion tribution Blower on "low". of the temp dial. Heat output and fuel consumption will remain constant. This makes it possible to tell how long a hopper full of coal will last. The distri- bution blower speed can be v
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DAILY MAINTENANCE 19 Ash Removal With each hopper of coal that is burned, approxi- mately one ashpan full of ashes must be removed. (fig. 19) It may take from one to four days for the ash pan to get full, depending on the burn rate. Fig. 18 Failure to remove the ashes will result in a blocked grate and the fire will not burn properly. Remember, the ashpan will be hot, so always wear protective gloves. Ash Removal Setting: Ash Out Position The "Ash Out" position on the feed adjuster
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WEEKLY MAINTENANCE 20 Empty Fines Tray The small Fines Tray in the side of the stoker should be removed and emptied To remove the Fines Tray, first open the door on the left rear of the stove. Next, loosen the thumb screws holding the Fines Tray Cover, fig# 20. Next, turn the cover 90 degrees and slide out the Tray as shown. If the Tray has over- flowed, use a vacuum cleaner to reach into the opening and remove the excess material. Cleaning Glass While Unit Is Burning: Caution: The glass
