Home

Harman Stove Company SF 3500A User's Manual

1. Operating Instructions Adjusting Automatic Draft Control In order for your new furnace K gt to function the controls must be prop erly adjusted The heat output is regu Figure 5 lated by the automatic draft control on the bottom door of the furnace Refer to the illustrations at right The electric draft motor A opens and closes the flapper door B The flapper door opens to feed more air to the fire and closes to reduce the air to the fire The maximum air flow can be adjusted by turning the adjuster bolt C counter clockwise for more air and clockwise for less air NOTE To preserve motor life all adjustments of this bolt should be done while the flapper door is in the closed position The idle adjuster D controls the minimum amount of air that enters the firebox when the flapper door is closed Adjustment is made by turning the adjuster vertical for zero air or horizontal for maximum idle air It is best to start at a medium setting as shown at right Adjusting the fan control Shut off the power at the circuit breaker be fore removing the fan control cover Make sure the copper jumper circled below is removed before using the furnace Note the three pointers on the dial The one on the right is the nigh limit adjustment Pre set at 200 degrees it s function is to close the automatic draft control flapper door if the temperature the plenum reaches 200 degrees Do not change this setting The cen
2. 31 in 31 in 36 in 20 in 20 in 25 in 25 in 40 in 41 75 in 40 5 in 45 in 16 5 in 16 5 in 16 5 in 16 5 in 44 5 in 47 5 in 48 in 52 5 in 27 5 in 27 5 in 27 5 in 27 5 in Special Instructions Coil Installation Hot Water Out Cold Water In Pressure Relief Valve Automatic Air Valve Pressure Relief Valve Must be within 2 feet of coil Existing Water Heater Plumbing Diagram For Thermo Siphon Method Maximum Distance 10 Feet Place one of the supplied nuts on each leg of the coil Place the coil through the holes on the back of the furnace and adjust the nuts so that the pipes stick out about 174 to 177 inches from the rear of the furnace Place the flat washers and gaskets over each pipe and tighten the nuts You are now ready to run the piping This simple method is the most economical However the existing water heater must be less than 10 feet from the furnace The water inlet where the Temperature Pressure Relief valve is located must be higher than the top leg of the water coil The water heater should be elevated if necessary to allow for proper thermo siphon action The method by which hot water will circulate automatically through the system A Shut off the water heater and the water supply to it Drain the tank completely B Remove the Temp Presure relief valve and discard Install a short 3 4 in nipple and tee 1 along with a new relief valve C r
3. Exclusions to the five years will be the following items A Electrical Blower 1 year warranty B Door Packing C Glass D Firebricks E Paint F Any damage deemed abuse See a complete copy of the warranty on page 19 Specifications Heating Capacity square ft Approximate BTU Input Blower Size Automatic Draft Filter Box amp Filter 3 Speed Fan Switch Fan Control High Limit Thermostat Domestic Hot Water Coil Firebox Dimensions Inches Recommended Log Length Maximum Log Length Flue Size Filter Size Number of Grates Weight Plenum Dimensions Clearance to Combustibles Rear Clearance to combustibles Side Dimensions rommuooum p SF1500 SF2500 SF2600 SF3500 Complete Complete Complete Complete 2200 3200 3200 4200 90 000 120 000 120 000 170 000 1000 cfm 1000 cfm 1000 cfm 1450 cfm Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Standard Single Speed Standard Standard Standard Standard Standard Standard Standard Standard Optional Optional Optional Optional 16Wx22Lx20 5H 18Wx26Lx21 5H 18Wx26Lx21 5H 18Wx30Lx25H 18 in 22 in 22 in 27 in 22 in 26 in 26 in 30 in 6 in T in T in T in 14 X 20 14 X 20 14 X 20 14 X 20 4 5 9 6 580 Lbs 700 Lbs 900 Lbs 800 Lbs 20 X 20 20 X 20 20 X 25 20 X 25 30 in 30 in 30 in 30 in 24 in 24 in 24 in 24 in 25 1 26 in 28 in 28 in 20 in 20 in 20 in 20 in 46 5 in 47 5 in 57 in 52 5 in 27 75 in
4. is normal Starting a Wood Fire Open the bottom door to increase the draft Take about eight sheets of newspaper crumbled into balls and place on top of the grates Next lay some fine kindling on top of the paper This kindling must be dry and no larger than 3 4 diameter and should be layered in a criss cross pattern to allow good air flow Then lay some slightly larger pieces 2 diameter of wood on top of the kindling Light the paper at the bottom just inside the door Now close loading door and allow kindling and wood to catch fire After about five minutes close the bottom door and open the loading door an inch or two for a few seconds before opening completely This method will allow the smoke to clear away from the door opening Now the fire should be well established and ready for some larger wood Add four or five pieces of 3 to 4 diameter wood Close loading door and open bottom door again Let burn for about 5 minutes Now open loading door using the same method as before always closing the bottom door before opening the top door Now load the firebox with wood to the desired fullness All Harman 12 furnaces may be loaded with wood as full as possible for high output and long burn time Then close the door and allow all the wood to catch fire The bottom door may again be opened to speed the process The object is to get the wood burning well enough so it will not go out when the automatic draft shuts back to t
5. job and need not be replaced immediately If a brick is broken and has fallen out of place it should be replaced immediately The firebrick used in the Harman furnaces are inexpensive and easy to replace The blower manufacturer recommends the blower motor to be oiled once a year with 10 to 20 drops of light weight oil check instructions packed in blower box Cleaning Heat Exchanger SF2600 Only Remove oil burner by removing four mounting bolts Burner can be tied up to ceiling to avoid having to remove the wiring Next remove the collar from the front cover and remove front cover by tilting out from top first Now the heat exchanger will be exposed Next remove the four nuts that hold on the cover then remove the cover This will expose the inside of the heat exchanger Remove spirals by simply pulling them out and clean the tubes with a brush Reinstall spirals so they are flush with the end of the tube and reassemble unit in reverse of disassembly 14 Warranty Warranty is issued at time of purchase For the warranty to become effective you must return the activation coupon to Harman 352 Mountain House Rd Halifax Pennsylvania 17032 as soon as possible The model serial number is found on the front upper left corner of stove WARRANTY WILL NOT BE HONORED UNLESS THE FORM IS COMPLETED IN ITS ENTIRETY Your Signature is Required Harman furnaces are warranted for five years in accordance with the warranty terms
6. pipe Before sliding the oil burner all the way in apply the gasket around the nose of the oil gun by wrapping it around the nose Next slide the oil burner into the pipe and secure it by tightening the four bolts around the col lar Be sure to tighten the bolts evenly to locate the oil burner in the center of the pipe The final set up of the oil burner should be done by an experienced oil burner technician with the proper equipment Re fer to the SF2600 wiring diagram on page 10 and the oil burner manual for proper burner set up There is also a section at the end of this manual with specific oil burner instructions Venting Guidelines Your Harman hot air furnace must be vented to it s own separate flue lined Class A chimney not less than 8 X 8 in size The chimney must be capable of providing a draft reading of at least 06 water column on a draft meter in order to function properly The Chimney must be a minimum of 16 ft high and must be two feet higher than anything within 10 ft The chimney must also be at least 3 ft higher than the point at which it exits or passes by the roof A barometric damper must be installed in the flue to eliminate excessive draft Any horizontal sections of connector pipe must have at least 1 4 in per foot rise Limit the number of elbows to two or less All joints in the connector pipe must be secured with sheet metal screws Assembly Bolt the shaker handle to the block on the lower l
7. temperature This is optional and not necessary if the circulator pump is left run continuously Another option is a gate valve placed near the pump to control the rate of water flow A Shut off the water heater and the water supply to it Drain the tank completely B Remove the Temp Presure relief valve and discard Install a short 3 4 in nipple and tee 1 along with a new relief valve C Remove the drain valve at the bottom of the tank Install a short 3 4 in nipple and tee and re install the drain valve to the tee 4 D Install a circulating pump as shown 6 Run 3 4 copper tubing from the circulating pump to the lower leg of the water coil This is where the optional gate valve 5 can be installed to regulate flow E Install a 3 4 in tee and a 150 Ib Pressure relief valve 7 in the top leg within two feet of the coil F Complete the 3 4 in line by running it back to the tee at the top of the water heater tank Be sure to install the 3 4 in vent elbow and automatic air vent 2 at the high point of the line The optional aquastat can be installed in this line a maximum of 6 feet from the furnace This aquastat must close on rise in tem perature and must be hooked up to turn on the circulator when the water temperature reaches 120 f G After securing all connections refill the tank with water and then ONLY THEN turn on the power to the water heater 17 SF2600 Burner Set Up SF2600 Oil Burner Setup Nozzle 80 Degre
8. Blue Angel Oil Burner Burner Gasket Automatic Draft Control Blower 2 Blower Brackets Filter Box Kit 3 pieces Filter Fan Control High Limit 3 Speed Fan Switch not on SF3500 2 Thermostats 2 Junction Boxes Relay High Limit Snap Disc 4 1 4 X 3 4 bolts amp 4 Filter Box Mounting Clips 36 Flex Conduit 1 Straight Conduit Fitting 1 Elbow Conduit Fitting Ash Pan shaker Handle Filter Box Kit Owner s Manual Warranty Registration Filter Day Mounting Clips C Blower Snap Disc aoa Blower Brackets fa 3 Speed Fan Switch Fan Control High Limit Thermostats Oil Burner Gasket Ash Pan Shaker Handle g Junction Boxes Conduit and Fittings Packing List for SF1500 SF2500 amp SF3500 Blower Mounting Plate w 2 7 5 16X3 4 bolts SF3500 Only Automatic Draft Control Blower 2 Blower Brackets Filter Box Kit 3 pieces Filter Fan Control High Limit 3 Speed Fan Switch not on SF3500 Thermostat Junction Box Relay 4 1 4 X 3 4 bolts amp 4 Filter Box Mounting Clips 36 Flex Conduit 1 Straight Conduit Fitting 1 Elbow Conduit Fitting Filter Ash Pan Shaker Handle Filter Box Kit Owner s Manual Warranty Registration Tenn Es Mounting Clips CR Blower 2227 Blower Brackets D R Thermostat 3 Speed Fan Switch Blower Mount SF3500 only L Ash Pan Shaker Handle Junction B
9. Close the bottom door as soon as the desired coal bed is made Loading Coal should never be added unless there is a reasonably hot fire The coal bed should be bright and vigorous If the fire is burning hot and there is a deep bed of coals full loads of coal can be added at any time However if there is not a deep bed of coals it is best to add small amounts of coal at first Shaking Shaking should be done only when there is a well established fire The frequency of shaking will depend on the degree of burning Shaking should be done whenever the furnace is refueled Best results for shaking Harman grates will occur when short choppy strokes are used rather than long even strokes Operating Instructions Safety Tips The amount of shaking is critical Too much will disrupt the fire bed and too little will restrict the air flow The proper amount normally occurs when red coals first start to drop through the grates into the ash pan Ashes Ashes should never be allowed to accumulate in the ash pit so that they in any way impede the flow of combustion air to the fire Excess ash accumulation can cause the fire to go out and also can cause severe damage to the grates because of the absence of a cooling flow of air beneath them Ashes should be placed in a metal container with a tight fitting lid The closed container of ashes should be placed on a noncombustible floor or on the ground well away from all combustible materials p
10. Installation amp Operating Manual The Harman SF1500A SF2500A SF2600A SF 3500A We suggest that our hearth products be installed and serviced by professionals who are certified in the U S by the National Fireplace Institute NFI as NFI TS E Specialists Tested amp Listed By Beaverton Oregon USA US OMNI Test Laboratories Inc R4 SAFETY NOTICE PLEASE READ THIS ENTIRE MANUAL BEFORE YOU INSTALL AND USE YOUR HEATING APPLIANCE FAILURE TO FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE BODILY INJURY OR EVEN DEATH FOR USE IN THE U S AND CANADA NOT SUITABLE FOR INSTALLATION IN MOBILE HOMES IF THIS HARMAN STOVE IS NOT PROPERLY INSTALLED A HOUSE FIRE MAY RESULT FOR YOUR SAFETY FOL LOW 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 STOVE COMPANY SAVE THESE INSTRUCTIONS Table of Contents Packing List Installation Mounting Blower amp Filter Box Wiring Duct Work Operation Safety Tips Chimney Troubleshooting Maintenance Specifications Coil Installation Oil Burner Setup Warranty 3 o Packing List SF2600
11. PTION AND EXCLUDES ANY INCIDENTAL AND CONSEQUENTIAL DAMAGES CONNECTED THERE WITH WARRANTY EXCLUSIONS 1 Labor 2 Ceramic Log Sets 3 Battery Back ups 4 Firebrick 5 Door Packing 6 Paint 7 Glass 8 Flame Guide and Insulator 9 Acts of God PLEASE READ THE LITERATURE BY THE MANUFACTURER FOR THE VARIOUS ACCESSORY DE VICES THESE DEVICES ARE WARRANTED BY THE MANUFACTURER NOT BY HARMAN STOVE COMPANY FURTHERMORE THESE ACCESSORY DEVICES MUST BE INSTALLED AND USED ACCORD ING TO THE RECOMMENDATIONS OF THE MANUFACTURER Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limita tion or exclusion may not apply in your state This warranty gives you specific legal rights and you may also have other rights which vary from state to state which may be enforceable in a Court of Law REMEDIES The remedies set forth herein are exclusive and the liability of seller with respect to any contract or sale of anything done in connection therewith whether in contract in tort under any warranty or otherwise shall not except as herein expressly provided exceed the price of the equipment or part of which such liability is based CLARIFY The above represents the complete warranty which 15 given in connection with stoves manufactured by Harman Stove Company No other commitments verbal or otherwise shall apply except by a written addendum to this warranty 20
12. e Solid Cone Off Cycle Damper Setting B No 1 as low as it goes Flamelock Setting A No 1 Combustion Air C No 1 to 1 Draft Inches of water column 06 to 08 Tests for CO must be made without a fire in the wood coal firebox and with all doors and draft controls completely closed The burner should be fired for several minutes prior to taking a reading Normal CO reading is 11 to 12 with a stack temperature of 300 degrees or less This would give you an efficiency of 84 to 85 percent 1272 18 1 Year Limited Warranty Commerical 5 Year Limited Warranty Residential Warranties are not transferable Harman Stove Company warrants its products to be free from defects in material and workmanship in normal use and service for five 5 years from the date of sales invoice If defective in material or workmanship and if removed by the owner with in 60 months of installation Harman Stove Company will at its option repair or replace the product as described below The warranty above constitutes the entire warranty with respect to Harman Stove Company product HAR MAN STOVE COMPANY MAKES NO OTHER WARRANTY EXPRESS OR IMPLIED INCLUDING ANY WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE No employee agent dealer or other person is authorized to give any warranty on behalf of Harman Stove Company This warranty does not apply if the product has been altered in any way after leaving the fac
13. eft side of the furnace using the bolts and lock washers provided Bolt the two manual draft controls to the front load door Proper installation allows the draft controls to open approximately 1 2 from the door surface See Figure 1 Bolt the auto matic draft control to the bottom door Be sure to hold the unit straight while tighten ing After the auto matic draft control is mounted the two wires must be strung through the flexible conduit and two fittings supplied The knockout plug of the junction box must be removed to in stall the conduit fitting Check the door of the automatic draft control to assure proper operation Warning Keep pieces of wood or coal out of the draft door opening mechanism as this could cause the door to stick NOTE Oil the hinge at the begining of the heating season With a light oil The junction box is best mounted on the side of the furnace about 1 in back and 8 in from the top of the sheet metal side fig C or D If this location is inconvenient anywhere on the right side will work Figure 1 SF1500 SF2500 SF3500 This figure represents the models SF1500 SF2500 and SF3500 It s intention is to represent the approximate location of the various controls This drawing may also be used as a recommenda tion for routing of the wiring and approxi mate dimension of control spacing Please note that this drawing is for fr 14 reference only Each 1 specific installatio
14. ending final disposal If the ashes are disposed of by burial in soil or otherwise locally dispersed they should be retained in the closed container outside the dwelling until all cinders have thoroughly cooled CAUTION ASHES SHOULD NEVER BE ALLOWED TO ACCUMULATE ABOVE THE TOP OF THE ASH PAN ASHES IN CONTACT WITH THE BOTTOM OF THE GRATES ACT AS AN INSULATOR INTENSIFYING THE HEAT ON THE GRATES AND COULD CAUSE THEIR WARPAGE WITH AN EXCESSIVE ASH BUILDUP PRIMARY COMBUSTION AIR IS RESTRICTED THUS THE UNIT S OUTPUT COULD BE REDUCED Coal produces considerably more ash than wood So the intervals between emptying are much shorter For equal heat output coal will produce seven to ten times more ash than wood Draft Control Settings The idle air adjustment on the flapper door may need to be adjusted slightly less for coal than for wood Here again experience will dictate the best setting The maximum air adjustment bolt can be set at the maximum position for quick recov ery When a longer than normal burn time is desired the maximum air adjustment can be reduced Never adjust the maximum air bolt when the flapper door is opened See Fig 6 on page 11 Safety Tips When opening the loading door it should be cracked open slightly for a few seconds to allow oxygen to burn any gases that may be present and to allow smoke to be drawn away from the door Whenever the bottom door is open it should be closed before opening the loadin
15. g door This is to increase draft through the loading door and prevent excess smoke from escaping The firebox should never be filled with excessive coal so that the flue exit is blocked or impeded in any way Burn ing coal generates carbon monoxide If the flue gas exit is blocked the carbon monoxide can be forced out of the fur 13 nace into the room with possible fatal consequences With the exception of start up or increasing heat from a low fire or removing ashes the bottom door should be kept closed Never install a Harman furnace to a chimney with a history of down drafts KEEP CHILDREN AWAY MAY CAUSE SERIOUS BURNS CAUTION ALL SURFACES OF FURNACE ARE HOT DO NOT TOUCH KEEP CHILDREN AWAY SERIOUS BURNS WILL RESULT IF TOUCHED THIS IS A HEAT PRODUCING APPLIANCE FUEL FIRING WARNINGS DANGER FIRE HAZARD DO NOT USE CHEMICALS OR FLUIDS TO START OR FRESHEN UP A FIRE SEVERE BODY BURNS OR A FIRE IN YOUR HOME COULD RESULT DO NOT BURN GARBAGE GASOLINE THINNERS DRAIN OR ENGINE OIL KEROSENE OR FUEL OIL ETC AN EXPLOSION A HOUSE FIRE OR PERSONAL INJURY COULD RESULT KEEP ALL SUCH LIQUIDS WELL AWAY FROM THE FURNACE WHILE IN USE Chimney Problems Not Enough Draft Chimney is too low A chimney should be two feet higher than anything ten feet around it Air may be leaking in around a loose fitting clean out door flue pipe may not be tight at joints or the masonry may be defective Chimney may be blocked
16. he idle setting NOTE When the bottom door is open the automatic draft cannot function to reduce the amount of air to the firebox For this reason the furnace could overheat WARNING NEVER LEAVE THE BOTTOM DOOR OPEN WHILE FURNACE IS UNATTENDED After the wood is burning well close the bottom door The automatic draft control will now regulate the fire The idle control as shown on Fig 6 on the flapper door must be adjusted so the fire does not go out or overheat Experience will dictate the best setting Normally the two manual draft controls on the loading door are kept closed to burn wood Starting A Coal Fire Use the same procedure as for wood except do not go to large diameter wood Use wood about 2 in diameter maximum This size will form very hot wood coals in less time Here again the bottom door may be opened to speed the process When a substantial bed of red wood coals are developed start adding a thin layer of coal Pea or nut sized coal is better for starting a fire than stove coal When the first layer is burning with some blue flame continue to add thin layers of coal until there is a solid bed of burning coal Let each layer burn a blue flame before adding another layer Layers can be added until the bed is approximately ten inches deep This is about at the top of the firebrick Most users find that if they keep the two manual draft controls open about one quarter turn it helps keep the gasses burned off NOTE
17. n will vary Figure C Fan Control 120 volt power M Relay Furnace Installation SF2600 This figure represents the model SF2600 furnace Its intention is to Figure D represent the approximate location of the various controls This draw ing may also be used as a reference for wiring and control spacing Please note that this drawing is for reference only Specific installa tions will vary Oil Fan Control 120 volt power Mounting The Blower And Filter Box Position the filter box between the brackets on the rear of the fur nace with the bottom of the box resting on the flange at the bottom of the furnace Insert the mounting clips into the bracket slots to secure the filter box see Figure 2 Next install the blower brackets onto the blower being sure to install the rubber feet into the brackets NOTE On the SF3500 install the blower mount and blower before the filter box All hardware brackets etc for the blower will be found in the car ton with the blower Next position the blower in the filter box centered behind the inlet hole and allow approximately 1 8 in space between the rear of the furnace and the blower outlet Now install the filter rail onto the filter box NOTE The filter rail is best installed on the side toward the shaker handle so that any pipes from the hot water coil do not interfere with filter installation or removal NOTE Before proceeding with the installation
18. of the access door it is suggested that the wiring be com pleted The access door is installed by slipping the flange on the bottom of the access door over the bottom rail of the filter box opening then push the top of the door against the top of the filter box opening and secure with a sheet metal screw Filter box mounting clips Figure 2 1 8 in space between blower and furnace Furnace Installation Wiring Wiring Before beginning any wiring study the appropriate wiring diagram for your unit Also refer back to fig ures C or D for an example of what the completed job will look like It is your reponsibility to follow all state and local electrical codes Locate the best place to route the power for the blower and drill a 7 8 hole in the filter box This hole size will accomodate a romex connector Attach the blower and power wires as shown on the appropriate wiring diagram Once you have the plenum installed the fan control with high limit switch can be installed The Fan control high limit switch is packaged with a jumper between the two sets of terminals inside REMOVE THE JUMPER WIRE INSIDE THE FAN CONTROL The fan control should be installed in the right side of the ple num and 12 to 18 inches above the top of the furnace A separate conduit should be run from the fan control to the junction box Mount the thermostat in a central location of the area you want to heat Run two wires to the junction box from the hea
19. ove pipe must be 24 gauge or thicker 4 12in bolts two on each side attach the heat When re installing the heat exchanger inspect the gasket around exchanger to ba UTR AC the furnace opening and replace if necessary Figure A Place the heat exchanger in position and secure with the long bolts and nuts Be sure the gasket is compressed evenly Re install the sheet metal by sliding the groove on the bottom of each side panel over the steel lip on the furnace The top sheet metal piece holds the sides in place The SF2600 front cover gets installed by angling the bottom edge over the lip on the top of the firebox The side edges must slide into the grooves on each side and pushed in flush with the sides and top This front piece is held in place by the black ring which gets tightened around the burner pipe Do not over tighten as this will push the sheet metal in too far Figure B Furnace installation Installing Wood Coal High Limit Switch SF2600 only First install the sheet metal sides as de scribed in the previous section Install the snap disc switch into the hole on the right side sheet metal Then mount the open backed junction box around the snap switch Proceed with wiring as shown on page 10 Also refer to Figure D in this section Mounting The Oil Burner SF2600 only Remove oil burner unit from it s box Loosen the four bolts in the pipe on the front of the furnace Insert the nose of the oil gun into the
20. ox Flex Conduit amp Fittings Furnace Installation To ensure a safe installation it is recommended that this furnace be installed by a qualified installer The sheet metal top and sides can be easily removed to reduce the chance of dents or scratches on the painted surfaces To remove the sheet metal first lift off the top section Now the sides can be removed by lifting up and out away from the furnace Inspect Gasket prior to re installing heat exchanger To lighten the SF2600 the oil burner heat exchanger should be removed Do so by first removing the sheet metal as described above Remove the front sheet metal by first removing the burner collar Now remove the the two long bolts on each side of the heat exchanger Figure B The entire unit can now be lifted off and moved separately Caution This furnace must not be installed closer than 24 inches at the sides and 30 inches from the rear to combustible materials The unit may only be installed on a non combustible floor surface such as concrete floor or concrete pad on dirt floor The hot air plenum must be a minimum of 2 inches from the ceiling or other com bustibles above the plenum Figure A Locate the furnace as close to the chimney as possible while still maintaining the above clearances No more than 8 feet of stovepipe should be used including two or less 90 elbows All horizontal runs of pipe should have a minimum 1 4 in rise per foot All st
21. s SF 2600 Oil Operation as Backup The SF 2600 offers a unique option to the homeowner The ability to have an efficient oil backup heat source built right into a wood coal furnace The operation of the oil burner as a backup system is as simple as setting a thermostat To use the oil portion of your furnace as a backup proceed as follows 1 Set the wood coal thermostat to the comfort level you desire 2 Set the oil thermostat to a level 5 to 10 degrees but not less than 3 degrees lower than the wood coal thermostat That s all there is to it The idea is that when the wood coal portion can no longer maintain the level set on that thermostat the oil portion will come on and maintain the temperature set on the oil thermostat SF 2600 Oil Operation Only In the oil only mode simply turn the wood coal thermostat to its lowest setting and select the comfort level you desire on the oil thermostat The SF 2600 will now act as a standard oil burner and maintain your chosen temperature NOTE It is recommended that the wood coal fire in the lower portion of the furnace be out or nearly out before going to oil only operation Curing Paint During the first few hours of burning a blue smoke will be observed rising from the painted surface of the furnace It is advisable to increase the amount of fresh air in the room during this breaking in period This may be achieved by opening doors win dows etc Don t be alarmed This
22. ter pointer adjusts the temperature at which the blower starts A good initial setting for this is 150 degrees The pointer on the left is to adjust the temperature at which the blower stops A good initial setting for this pointer is 100 to 110 degrees If it is set too low the air will feel cool coming out of the registers at the end of the blower cycle Thermostat Set the thermostat to the desired tempera ture When more heat is needed the thermostat opens the au tomatic draft control flapper door This allows air into the firebox which raises the output of the fire When the temperature in the plenum reaches the set temperature of the center pointer on the Figure 7 fan control the blower will begin blowing heated air through the ductwork When the thermostat reaches it s setpoint the automatic draft control closes the flapper door thus reducing the output of the fire As the temperature in the ple num drops to the set point of the left pointer on the fan control the blower will stop A solid fuel fire cannot cease output immediately therefore your room temperature may exceed the thermostat setting at times You also may notice times that the blower runs for a short period even though the draft control is closed Again you can t just stop a wood or coal fire instantly and temperature may build enough to run the blower This is normal and will be noticed more with coal than with wood 11 Operating Instruction
23. ting terminals on the thermostat 22 gauge or thicker wire is acceptable The next step is to run a 120 volt line from your breaker panel to the junction box Attach all wires ac cording to the corresponding wiring diagram and install the relay into the junction box DO NOT TURN ON THE BREAKER UNTIL ALL WIRING 15 COMPLETE AND THE RELAY IS SECURED SF1500 and SF2500 Wiring Diagram STOVE THERMOSTAT 120 VOLTS IN x NOTE DO NOT USE THE W Y OR C TERMINALS DAMAGE WILL RESULT WIRES 24 VOLT RELAY FRONT VIEW BROWN WIRE NUT THIS WIRE NOT USED RELAY BACK VIEW SF3500 Wiring Diagram SF3500 Wiring Diagram STOVE THERMOSTAT P 4 X o 120 VOLTS IN NOTE DO NOT USE THE W Y OR C TERMINALS DAMAGE WILL RESULT NOTE SF 3500A DOES NOT USE A 3 SPEED BLOWER OR A 3 SPEED SWITCH RELAY FRONT VIEW BROWN WIRE NUT THIS WIRE NOT USED RELAY BACK VIEW SF2600 Wiring Diagram SF2600 Wiring Diagram STOVE THERMOSTAT NOTE DO NOT USE THE W Y OR C TERMINALS DAMAGE WILL RESULT RELAY FRONT VIEW WIRE NUT THIS WIRE NOT USED RELAY BACK VIEW Duct Work Operating Instructions Duct Work This figure shows a typical duct system layout Be sure the entire sys tem is properly sized to provide the cor rect static pressure for optimum blower Return Iw performance Have any new duct sys tem designed by a HVAC professional nca 2
24. tory Harman Stove Company assumes no liability for resultant damages of any kind arising from the use of its products In addition the manufacturer shall be held free and harmless of liability for damage to property related to the operation proper or improper of the equipment THERE ARE NO OTHER WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF THESE WARRANTIES APPLY only if the device is installed and operated as recommended in the user s manual THESE WARRANTIES WILL NOT APPLY if damage is caused by abuse accident improper installation neg ligence or use beyond rated capacity SERVICE LABOR RESPONSIBILITY In furnishing replacement parts Harman Stove Company assumes no responsibility for any labor expenses for service removal or reinstallation HOW TO MAKE A CLAIM Any claim under this warranty should be made to the dealer from whom this ap pliance was purchased Then contact is made with the manufacturer giving the model and serial numbers the date of purchase your dealer s name and address plus a simple explanation of the nature of the defect SHIPPING COSTS The transportation charges are as follows 1 Customer prepays freight back to factory 2 Harman Stove Company prepays the repaired or replaced stove freight charges NOTE Prior approval by phone or in writing shall be made before shipping entire unit to manufacturer THIS WARRANTY IS LIMITED TO DEFECTIVE PARTS REPAIR AND OR REPLACEMENT AT OUR O
25. un 3 4 in copper tubing between the water tank and the top leg of the coil Install a 3 4 in vent elbow and automatic float type air vent 2 in the high point of the line Within 2 feet of the top leg of the coil install a 150 Ib pressure relief valve 5 Run 3 4 in tubing from the release exit of both relief valves downward 3 so the hot water can escape in the event of an overheat situation D Remove the drain valve at the bottom of the tank Install a short 3 4 in nipple and tee and re install the drain valve to the tee 4 Run 3 4 in tubing between the drain tee combination and the lower leg of the water coil After all of the connections are secured refill the water tank Turn on the water heater only after the tank has been completely refilled 16 Special Instructions Cold Water In Hot Water Out Aquastat close on rise Optional Temp Pressure Relief Valve Q Automatic Air Valve 2 Pressure Relief Valve Must be within 2 ft of coil Optional Gate Valve to Control Rate of Flow Circulator Pump Distance between of more than 10 feet Circulating Pump Method Distance 10 Feet or More This method is used when the water heater tank is more than ten feet away from the furnace or the fur nace is on a higher level than the water heater tank In addition to a circulator pump you may want to add a aquastat to thermostatically control the pump according to water
26. with creosote or bird nests etc Improper sized chimney or stovepipe Too many elbows Distance of more than eight feet between furnace and chimney Down Drafts Trees or other topographical barriers may impede the chimneys operation causing a down draft condition to exist This can also be caused by adjacent buildings or chimneys Creosote and Condensation If creosote or condensation runs out of the chimney or stovepipe check the following Chimney cap or lining may be defective Furnace may be too far from chimney not allowing the chimney to get warm Wood being burned may be green or wet Unit may be too large for home causing wood to be burned too slow Excessive Draft This can be controlled with a barometric draft control on the stovepipe Maintenance Maintenance The spiral chamber is basically self cleaning However if there is a draft problem and you have been burning wood for a long time with little heat demand the spiral chamber may need cleaning Soft coal will also require more frequent cleaning To clean remove stovepipe and scrape the creosote from the front and top of the chamber and remove The rear of the chamber will not accumulate creosote NOTE 1 8 to 1 4 of creosote in the spiral chamber is normal Creosote can be burned off by burning coal for a few days Firebricks may become cracked during the course of normal operation A cracked brick that is still in place is still doing its

Harman Stove Company SF 3500A User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents