Operating the Stove
Contents
1. Y3 M2 d Y3 Y2 d Mi 5 d od a on Z 4 d 1 itt l Pee Domestic water warm M gZ are a Y3 e AO E l l l Solar l l model 00 E ADG P ADG o SSS Domestic water cold LE q Bn eee Ir t ee 1l 60 C M gt Tr Central Heating Stove with Buffer Storage and Boiler is filled from the boiler L Y3 KK M2 amp Y2 d Domestic water Y3 ie Ms warm i Y3 X l A l l o i ADG J i EIN Ji Y1 FM l Domestic water cold s RB Ra im le 60 C M T Assembly and Operating Instructions LOHBERGER Heiz u Kochgerate Technologie GmbH Central Heating Stoves ZEH Landstrasse 19 A 5231 Schalchen Telephone 43 0 7742 5211 0 LOHBERC X Telefax 43 0 7742 5211 201 E mail office lohberger com Article No 54001135 Internet http www lohberger com Natural Heating Naturally Lobberger 202. operation Setting the secondary air lever on the inside of the firebox door is to be undertaken as with the secondary air slider whereby here the lever position 1 corresponds to the slider position 3 above Secondary air slider Secondary air sess ie Ye atate Secondary air lever 13 Air Bleed Cock The air bleed cock is located on the front panel between the firebox and ash pan doors To bleed the air from the stove correctly a repeated de airing procedure is necessary as the vent connection leads approx 20 cm upwards and is filled with water This water must first run off during bleeding d oi Pe S Air bleed cock Ks i MESA s a N Baffles In stoves with an oven ZEH 90 110 there are two baffles installed under the cooking plate between the oven and the heating element They direct the heating gases to increased circulation around the oven resulting in an even distribution of the temperature Care should be taken that the baffles are correctly replaced after cleaning Cleaning and Operating Tools Cleaning and operating tools are located inside the swinging side panel of model ZEH 55 and in the storage drawer of the stove in models ZEH 90 110 ZEH 55 Grate rank All purpose wrench Ash scraper Fuels Suitable Fuels Firewood Billet wood should have a maximum water content of 30 of the dry weight a length of 1 3 m and be chopped or spli
3. without centre hole onto the rear panel 6 Screw the flue connecting piece onto the side Changing the flue connection to the top 1 Remove flue connecting piece from the rear panel 2 Screw off the cover on the cooking plate 3 Screw the flue connecting piece onto the cooking plate 4 Screw included cover without centre hole onto the rear panel Description of the Stove Components and Options Heating Installation Connection The boiler is suitable and approved as a heat generator for warm water heating installations with a flow temperature up to 95 C and a permissible excess operating pressure of 3 bar In closed systems a thermal safety valve must be attached as security against excess temperature The relevant connection is located on the back panel of the stove 1 2 male thread Follow the manufacturer s instructions when installing We recommend using our control box type AME for the closed system version This control box which is only 40 cm wide contains all instruments you need for operating and regulating the heating system The safety valves used during installation must be approved mark of conformity letter H Their drainage capacity must correspond to the maximum nominal heat output of the boiler Further points to be observed Heating room guidelines National building codes Local building codes Commercial and fire police regulations Environmental protection regulations Regulations o
4. Ere a a7 2161 E EC RTT TE Soheiiatc VIEW Fue Connection as odii ot sss erben aetna ete s eren Lem DM eS RI DD Lp Li ta CALL CIE PILI Connscioh GoODVelsibliad e eoa uelit re ERU D UNI EIN I M Eri EMI I E Mr A E Description of the Stove Components and Options neret nnnte terne teta tn tetas te teas tati Heating Installation Connection s cas oh mda OS craint aM bv vt brem UN UE NDS UD dan Dr UG Cet uade cra e Puce Sac ode Penip ed emanate dade Connection for the Thermal Safety Valve THaEOUOnev V CAN eT AN ascen Die voee ep ass la la a oce ruat doces Rn tala ane oeeg eue etas desc dt TAFOUGHEAV Val Heating DIMENSIONS ucssossdeasdns ioo ra Ata cp SUE ens ovata eei ae a eq a Rte Vot a Ra bom Ha Ro c b baa Operating the Through Wall Heating SLO VS COV SL PROPER AE Tat Ee a rol aerate etn ene ae een een ee ae me onan ee Em eRe Ee A nee nT ere NE er Oe eee eee Grate Riddling Cleaning Opening Ash Door Safety Device Primary Air Control COMO SEL SCO W MR REM TR TM ERR Ku SeCOBOSD G ONU S esee tunt uio an E A ed den adeo bc e dept PAP IC sia B OOK RR BANOS scan aa weddtsenidar ree R Cleaning and Operating Tools Operating the Stove for the First Time sao reu ioni Oan dol pni o ed pd eor a C n RA Ple HD DS Diceret eret quide haee ae her
5. cannot accept any liability for damages caused by chemical or electrochemical effects e g pollutants in the combustion air condition of heating water not VDI compliant e g lime deposit etc or as a result of installation not corresponding to the rules of engineering or the LOHBERGER documentation We will accept liability for visible paint and enamel damages due to manufacturing defects only if such defects are brought to our attention in writing within 14 days following the handover of the appliance Changes to or intervention in the appliance through persons not authorized by us to do so will invalidate our warranty obligation Setting up and conversion work are subject to billing Table of Contents F reword arapona cca li haa ccna vane arenwaneagmaevau a cnsananaanantt IIfiportant NOTES scii o pain vind A CURE Sale Hisl UC OLIO iscritte trc ttn ccpit eene CAN DUM oL DeL cea DUMI ASSE MIVAN ODeraliOpb ss dst demittit uot xti t det e um etre emu voten lusit p hen dena auda duri eee ero dine be Inr D ree ee er ean een B sit tes CR tee a eee TN Appliance Description Abplance DIMENSIONS susti SENSE descei b boda etant iia adu o riui teresa rptu a bar Delon ids he n Ua e thu Ec RE RRR Pp Cc N CO TCL CAN BIS RERUM General Instructions eene nnnm nnne nini de dde da aol Assembly and Conne6lI I s so anii te teris ice much Cocina mu aio tel eo elec nicus a ees mH
6. care e Running the central heating stove only with a load balance reservoir min 500 litres e Operating the central heating stoves with a return by pass temperature valve thermal valve motor controlled mixing valve 4 way mixing valve Damage ascribable to the lack of a return by pass temperature valve are excluded from the warranty Examples of this can be found at the end of these directions Safety Instructions During Assembly and Operation e When assembling the stove work with the operating instructions and observe the individual points e Take the safety clearances into account when assembling the Stove e Check the tightness of the stove pipe connection e Inspect the stove for damage safety glass e Take care that never more wood is laid on than is required for the nominal heat output ca 1 1 2 kg e When stoking the fire open the door slowly let the exhaust gases be drawn off first That way you can avoid the exhaust gases escaping into the room Always use insulated gloves to prevent burn injuries e Please remember that some components of the stove flue pipe working door etc get hot during heating and represent a danger of burns Be especially vigilant that small children are never in any danger e Dont seal off the stove during heating there is danger of deflagration Cooking Surface e Overheated greases and oils can be self igniting prepare all dishes requiring greases and oils for exampl
7. dioi bb Ai diste t cr er emt tert it uadit ofc d aco hate er aiebat Adang FUS MM Intake Air Settings standard Values for Fuel Charge and D ratlori eee tent ratae ena ehe e en da mai rs Sax rn bene eara tuae Combustion n Maintenance and Care ICSI COOKING ms NRI a aa TOT TET Malf nction Causes SOMO oun icis Peteeie icta ti etica cetera Sa o Ere ria dte a ttu eL d Y Eo erc o ei eaae ra e heus Examples of Various Installations Foreword You have selected a product made by LOHBERGER and therefore Austrian quality We congratulate you on your choice LOHBERGER in Schalchen Austria has been making a wide variety of appliances for more than 70 years These appliances are manufactured in traditional high quality in a timeless appealing style and colouration with economical and environment friendly heating technology and a high measure of operating comfort Important Notes Please note that every appliance can only function properly if it is handled correctly and cared for Following a few important rules is prerequisite to a superior reliability cost effectiveness low polluting combustion and long life These are e A professional proper installation e Appropriate handling abiding by the instructions in the Instructions Manual e Use of the correct fuels of a sufficient quality and dryness e Regular maintenance and
8. have many years of pleasure with your stove all appliances are equipped with an automatic temperature limiter as standard This serves to limit the combustion air flow rate However this has only a limited effect on the output It is definitely not suitable for compensating excessive fuel charges A certain amount of fuel will require a certain amount of oxygen for optimum combustion If the wood is supplied with a lesser quantity of air than is required for clean and efficient combustion less energy is generated in the appliance the appliance largely protected from overheating the unutilised wood gas however escapes through the chimney the result low efficiency and high environmental load Remedy charge the stove only up to the recommended fuel level The air entering the fire chamber from below through the grate is responsible for the output since it generates the basic heat resulting in wood gasification Rule of thumb lots of air from below means lots of combustible wood gas controllable with the help of the lower rotary knobs on the front This wood gas is cleanly and efficiently burnt at approximately 950 C by means of preheated secondary air JETIFIRE combustion technology The secondary air situated above the firebox door and behind the decorative trim enters the combustion chamber through openings in the fire compartment rear wall and from below and above along the fire compartment door over the fuel into the combust
9. save time and money and also to serve you more efficiently A Tip Before setting up and connecting your appliance write the information on the type plate in the following table Stove type Factory number Nominal heat output in KW with wood coal Radiant heat output in KW with wood coal Required feed pressure in mbar Flue connection left right top back side Colour Important Please read the information in this manual carefully before you start up your stove for the first time You will find important information for your safety for the use care and maintenance of the appliance so that you can enjoy your appliance for a long time Should a malfunction occur at some time please read our Chapter Malfunction Causes Solutions first Smaller malfunctions can often be resolved on your own thereby saving needless service costs Keep these instructions in a safe place Should they be lost we will be happy to send you a new copy Your locally responsible chimney sweep master should be informed before connecting the stove to the chimney There is no claim to completeness of the data We assume no liability Subject to technical alterations setting and printing errors The LOHBERGER Warranty These warranty conditions are valid in all European countries in which LOHBERGER stoves are sold Warranty claims are generally to be directed to your local LOHBERGER dealer or the dealer from whom you bought the applia
10. stove and chimney can occur In this case every warranty is rendered null and void 14 Operating the Stove for the First Time After completion of the assembly and connecting work and prior to the Start up a few measures must still be taken e Depending on the stove type and outfitting stove parts accessories cleaning and operating tools are stored in the interior of the stove and must be removed be before the first operation Avoid overheating the stove or making the cooking plate glow red hot Take care that there is a 2mm gap between the steel cooking plate and the stove frame otherwise a discolouration of the stainless steel stove frame can take place Oxygen rich fresh air is important for an optimum burning process Therefore aerate the room well before starting the fire Take care that the heating installation is ready to function water level water pressure temperature control instruments safety devices before every start up After you have familiarised yourself with the operating procedures for the stove the first operation can begin Heating Up Phase Open the damper Turn the primary air control to position 6 Open the firebox door Set secondary air slider to 0 Crank the grate to the desired position Place 2 3 small wood splints on the grate opread wood wool or wood chips over them Crumple a little newspaper and place on top Light Close the firebox door Let the wood burn briskly
11. their correct positioning or tightness When replacing the cooking plate make sure there is a 2 mm wide gap on every side 15 oteel Cooking Plate Directions for Caring for and Preserving the Cooking Plate The bright polished steel cooking plate was oiled before packing for protection from corrosion First Heating The applied corrosion protection should be wiped off the cooking plate before the first heating Open a window during the first heating as the applied corrosion protection develops an unpleasant but harmless smoke and odour for a short time At the same time a discolouration typical for steel when subjected to heat occurs on the cooking plate in the area from the hottest place toward the edge This discolouration will become more even with every further heating Cleaning The best time to clean the cooking plate when it is still warm after heating It can be cleaned with commercial powder or fluid scouring agents or the cleaning agent especially for steel cooking plates Order No 28999050 Stubborn baked on residues can be removed with pot scourers or steel wool Rust spots can only be removed with a wire brush or coarse sand paper Afterwards wipe the cooking plate with a damp cloth and let it dry This is of course fastest while the stove is still warm Finally grease lightly Don t leave any pots or pans on the cold cooking plate These form rust rings that are difficult to remove Preservatio
12. use only gentle non alkaline cleaning agents and no abrasive cleaning utensils Grease splashes or similar spots should be wiped off with a damp cloth Don t let them dry up Oven Thermometer ZEH 90 110 The thermometer in the viewing glass of the oven door has a reading range of approximately 20 300 degrees C The temperature marks are approximations for baking and broiling roasting and can deviate slightly from case to case Oven ZEH 90 110 The oven has 2 shelf positions and depending on the stove type is equipped with a plain shelf and oven grid shelf It is fully enamelled inside and therefore easy to clean See instructions for this on page 14 After cleaning the oven door should be left open a few minutes for airing The oven must absolutely be pre heated for baking and broiling roasting A brisk fire is required to maintain an oven temperature of around 250 degrees C Dry seasoned beech wood is very well suited to this purpose Oven Door ZEH 90 110 The oven door can be completely removed This is advantageous for a thorough cleaning of the oven To cool the oven the door can be set at a o degree angle To do this open the door push the metal clips on the door hinges upwards and close the door to the limit stop Unhinging the Oven Door 9 and pull away and down 1 Insert the hinges into the appropriate openings 2 Open the door slowly and press the clips 4 Close the door and check t
13. with rope sealing Detach the connection and replace properly re aligned or correctly fit together Thoroughly clean the firebox ash cavity heating gas draws and connecting pipes Have the chimney swept Re position correctly there must be a 2 mm gap between the plate and frame on all sides After cooking wipe off the cooking surface and grease it sand off the rust spots Don t use the cooking surface as a storage shelf See chapter Stoves with steel cooking plate on page 15 See Malfunction Temperature is too high unhinge the oven door remove the viewing glass remove the sealing frame clean the Replace sealing frame or viewing glass completely Examples of Various Installations The following pages show schematic diagrams of different system designs Stop devices vents and safety devices are not shown These diagrams are to be understood purely as examples and thus are no substitute for an exact planning which takes customer side requirements or hydraulic and safety specification requirements respectively into account Return By Pass Temperature Valve Too low operating temperatures i e flow and return temperatures that are too low have a significant detrimental influence on the life of the heating stove When the water dew point is not attained condensation water with more or less aggressive chemical components that accelerate corrosion forms on the surface of the heating boiler Therefore care must be tak
14. Ash or combustion residues are jammed in the adjustable Grate riddling is jammed Smoke escaping during heating up A too low draw rate in the chimney frequent occurrence of Stale air in the chimney due to weather conditions Temperature is too low Leaks at the connection between stove and chimney pipe Stove isn t heating end is not cleanly integrated with the chimney properly Stove connecting pipes or chimney are heavily sooted or Open cleaning access opening cover not screwed on after last cleaning Wrong intake air settings too high setting not adjusted to fuel being used Temperature is too high Danger of overheating Wrong fuel is being used When there is a film of soot over the entire cooking surface the humidity in the ambient air can be the cause Steel cooking plate is steam from the water insert cooking steam rusting Rust spots rust rings come from overflowing pots food remnants wet crockery and similar Max charge level not observed Secondary air plates or Wrong secondary air setting no secondary air with wood JetFire plate is defective Oven viewing glass is Overheating of the stove clouded Defective seal 16 Solution Take out the adjustable grate and clean it Have the local chimney sweep examine the chimney in regard to dimensions condition tightness Detach the connection remove loose mortar fix the pipe end into the wall fit the connection pipes in the end pipe
15. Close the damper Add 2 wood billets Turn primary air control back to position 2 3 Adjust the secondary air slider or lever depending on the fuel type being used Adding Fuel When adding fuel stoking we recommend Shorter intervals every 30 50 minutes and smaller amounts In this way the nominal output is reached with a lower pollutant emission and superior efficiency Observe the maximum filling height up to the lower edge of the firebox door Intake Air Settings The following table shows the recommended intake air settings after the operating temperature is reached Partial Load Draw rate 0 09 0 12 mbar Rated Load Draw rate 0 18 0 20 mbar Primary Secondary Primary Secondary Beech wood air seasoned standard Values for Fuel Charge and Burn Time The following table shows the recommended charges for the nominal heat output Firing mathod Burn time Charge Heat output Flat firing at highest grate setting 2 3 Wood billets 3 kg ca 35 min Nominal output Full firing at lowest grate setting 4 5 Wood billets ca 1 5 hr Nominal output Combustion The heating gases are vigorously mixed with the incoming hot secondary air and burn through the flame bundling plate opening in a swirling pattern The concentrated flames or flame bundling respectively cause high temperatures in the firebox Hot firebox and result in greatly reduced emission values CO emissions reduced
16. UK LOHBERGER Installation and Operating Instructions Central Heating Stoves Some installation advice given in this instruction manual would if followed result in an installation that may not meet UK building regulations A supplementary instruction manual is provided to give correct advice for installations and use within the UK ZEH 55 4 ZEH 90 4 ZEH 110 4 11 2010 General Information Customer Service or Spare Parts Requirements Austria Head Office Lohberger Heiz u Kochgerate Technologie GmbH Landstrasse 19 A 5231 Schalchen Telephone 43 0 7742 5211 199 Telefax 43 0 7742 58765 199 E mail service lohberger com Our office hours are Monday to Thursday from 07 30 a m until 12 00 noon from 1 00 p m until 5 00 p m Friday from 0730 a m until 1200 noon Outside of office hours please let us know your needs by fax or e mail Please note So that our Customer Service can prepare repairs and spare parts deliveries thoroughly we require the following information when you request services from US Your exact address Your telephone and fax number if available The exact appliance designation When can our Customer Service call on you The purchase date An exact description of the problem or the type of service you are requesting D Or dm oo Ne Please have your bill ready at hand In this way you help us to
17. anty card with the invoice in a safe place at all times A prerequisite of our warranty obligation is that the appliance has been installed and connected according to our instructions and the applicable EN DIN Austrian standards and has been operated and expertly maintained according to our instructions REPAIRS We will carefully check your appliance and establish whether the warranty claim is justified If yes we will decide in which way the defect should be repaired In the event of a repair we ensure expert performance on location or in our works This does not affect the start of warranty determined by the handover if it is necessary to replace the appliance the warranty period starts anew If you send in your appliance for repair please enclose your warranty certificate and proof of purchase COSTS F r die Dauer der Garantie bernimmt Lohberger samtliche Kosten Wenn wir entscheiden dass die Reparatur Ihres Ger tes zweckmaRigerweise in unserem Werk stattfinden soll dann gehen die Transportkosten sowie die Verantwortung f r den Transport zu Ihren Lasten LIABILITY EXCLUSION We cannot accept any liability for the loss or the damage of an appliance through theft fire vandalism or similar causes Indirect or direct damages caused by a supplied appliance or resulting upon the delivery of an appliance are excluded from the liability unless the delivery was performed by LOHBERGER or by a transport company commissioned by LOHBERGER We
18. by 90 ata shortened heating up phase with longer stoking intervals and to a more effective fuel utilisation 84 fuel utilisation means lower heating costs Maintenance and Care Regular maintenance and care are especially important for the stove s operating safety cost efficiency and value preservation It should be thoroughly cleaned at least 3 x a year When use is frequent or inferior fuel is used then correspondingly more often Remove and clean the cooking plate especially the underside with a wire brush Flame bundling plate Take out the plate and clean by brushing it off Remove grate and brush off Free clogged air vents Detach flue pipe s and sweep out Scrape the firebox walls and gas shaft with the ash scraper Brush off damper and holders and check the proper functioning Remove and empty ash pan Sweep out the ash pan cavity After removing the cleaning access door scrape off the reachable heating gas draws with the ash scraper Check rope seals on the burners and access cover replace if needed Clean the secondary air vents on the protective firebox door plate with a wire brush When cleaning the chrome anodised or enamel surfaces use only gentle non alkaline cleaning agents and no abrasive cleaning utensils The same is valid for cleaning the oven When replacing the different stove parts flue pipe cooking plate grate flame bundling plate access door ash pan make sure of
19. e chips only under constant supervision Never try to put out grease or oil fires with water Cover the pot with a lid and pull it from the hot burner e Don t place any aluminium foil or plastics on the cooking surface e Don t put any combustible or flammable objects on the cooking surface that can pose a danger when the appliance is put into operation Oven e There is danger of burn injuries when working with the hot oven Use potholders insulated mitts or similar e Don t store any objects in the oven that can pose a danger when the appliance is put into operation e Use caution when opening the oven door Do not bend over the open oven door immediately When opening the oven door a surge of hot air or steam escapes from the opening e Always make sure the oven door is completely closed when using it to prepare food Appliance Description ZEH 55 0010 0022 0024 0030 0040 0100 0110 0120 0130 0150 0180 0190 0280 0320 0330 0355 0370 0390 Base Side panel with flue con Side panel with flow return Cover enamelled Cover flow return Cleaning access panel Wood drawer panel Side panel Oven Cleaning access cover Flue connection piece Oven plain shelf Firebox door protection Grate Front grate Flame bundling plate Damper Heating gas baffles heating gas plates ZEH 90 110 Steel cooking plate Burner cover Water insert cover plate Knob Secondary air lever Control Control swi
20. en that the return temperature of the heating boiler does not drop below 60 C during continuous running Temperatures falling below the dew point primarily occurs in low temperature heating installations return temperatures down to below 25 C in installations without a mixer in the case of extreme light load operation during changes in season and in constant light load operation caused by a stove that is dimensioned too large Heating flow Y 3 way thermostat valve e g Overtrop Setting range 40 70 C Set to 60 C the return temperature is kept at 60 C uL M Circulation pump for filling the load balance storage tank Legend for the Following Hydraulic Diagrams 1 Central heating stove ZEH Y1 3 way thermal valve M1 Buffer reservoir pump 2 Heating loop Y2 Motor mixing organ heating loop M2 Heating loop pump 3 Boiler Y3 Return valve or flap M3 Boiler filling pump 4 Buffer reservoir 9 Solar model ADG Expansion tank F Temperature sensor 17 Central Heating Stove with Buffer Reservoir and Integrated Boiler Y3 M2 Y2 S y A Domestic Pn Y3 water warm N Solar Domestic gy d model water cold pr c osname ep f ADG I ADG ej Y Y fi lt Yi FM ET EH i 60 C
21. er If the heating operation is run at a high output during the first few days it Assembly and Connection It must be ensured that there is enough clearance between all parts of the stove and combustible objects wood panelling furniture curtains and similar If there is a wood or synthetic floor or wall to wall carpeting then a fireproof floor shield made of steel copper or another non combustible material must be used In case of an instalment attached or adjacent to combustible materials or in a kitchen unit then a fire barrier with min 50mm Lohberger BSE 50mm must be provided Also when installing the flue pipe the minimum clearances to combustible materials required by fire police must be observed Ensure a level and vibration free positioning of the stove Choose the best flue connection on the stove rear side or top and seal off the unused flue connections tightly Flue Connection A trouble free and economical functioning is ensured when all factors for a thorough combustion are on hand a The Chimney The design and condition of the chimney must conform to the regulations valid for the installation location and are to be inspected for defects and flaws before the stove is connected The effective chimney height from the cooking plate to the chimney outlet must be at least 5 m If the height is less the stove must be connected by a vertical flue pipe that is at least 1 m long A connection to a chimney wit
22. f the local power supply company A trial run must be carried out after completion of the connecting work during which all control and security instruments are to be adjusted and checked for proper functioning The assembly installation fine tuning and initial operation with the trial run must be carried out according to the Installation and Operations Instructions by a qualified heating professional Only then can it be guaranteed that the appliance functions flawlessly If any damage occurs through omission of any the above points all warranty claims become null and void Connection Possibility at the Back with angle with T piece VL flow RL return AE automatic bleeding SV safety valve TH probe fitting Connection Possibility at the Side VL RL downwards VL RL towards the back VL RL upwards Connection for Thermal Safety Valve The heat exchanger serves to protect the stove from overheating during a pump standstill and may not be used for preparing water for domestic use The safety mechanisms must still be accessible after the installation The runoff must be visible for checking the proper functioning of the thermal safety valve therefore use the runoff funnel A function check of the thermal safety valve must be carried out at least once a year To do this the red cap must be pressed against the valve and water must flow into the runoff funnel Should the therma
23. h an effective height of less than 4 m is not advisable The chimney should have a unvarying square or round inner diameter and be insulated against cooling Chimneys made of pre fabricated assembly units should be preferred The assessment of the chimney is to ensue according to DIN 4705 Parts 1 and 2 and Part 3 if it used by more than one device It is absolutely necessary to consult your locally responsible chimney sweep regarding questions of this nature b Connection Stove Chimney The flue pipe is the connection between stove and chimney When it is being installed the following should also be observed The diameter of the flue pipe may not decrease toward the chimney side the pipe may not project into the chimney Vertically positioned pipes may not be longer than 125 cm if they are not insulated Horizontal flue pipe lengths may not be longer than 100 cm without a vertically connected pipe before it The flue pipe may not descend toward the chimney but must incline slightly upward toward the chimney The entire connection between the stove and the chimney must be stable and close fitting The bond with the masonry of the chimney must be especially durable and tight c The required feed pressure chimney draw The feed pressure required for your stove is listed in the table lechnical Data on page 7 and can be found on the type plate of the stove Too low a feed pressure would lead to an incomplete combustio
24. he correct fit 3 Arrest with a jerk 11 Operating the Stove Damper The damper is operated by the knob located in the decorative trim under the stove frame and opposite the firebox door Pulling out the knob opens the damper the heating gases then take the shortest route to the flue pipe This position may only be selected during the heating up phase The damper must be re closed a few minutes after heating up When it is closed the heating gases first circulate around the oven and then escape to the flue Note An open damper does not result in increased baking strength In this case the heating gases only brush over the oven surface In addition a longer opening of the damper can lead to overheating and therefore to damages to the stove which are excluded from the warranty Grate The adjustable grate 22 5 x 39 cm is in use in all ZEH stoves The adjustable grate makes any desired filling cavity height setting possible The adjustable grate is controlled with the grate crank which is placed over the lower square head stud located above the ash pan Clockwise turning raises the grate The top grate setting is mainly suitable for cooking and baking whereby heat output to the heating system is low Counter clockwise turning lowers the grate At the lowest setting maximum heat output goes to the heating system the cooking performance is adequate and the baking roasting performance is lower Labo Raising and l
25. ion chamber The exact mixing of the wood gas with hot secondary air ensures optimum combustion and connected with this excellent fuel utilisation The environment will be grateful Control Set Screw A change in the air intake cross section can be achieved with the control set screw located on the inside of the ash door A professional should do this fine tuning as several factors must work together to attain an optimum burning process Screwing in the set screw about 2 mm the intake cross section is reduced and a slower more economical combustion results When the set screw is screwed out about 10 mm the cross section Is increased so that a faster combustion results Care should be taken that an over firing doesn t occur The draw rate of the chimney can t be influenced with the control set screw O p Control set screw secondary Air Control The addition of secondary air flowing combustion air from the top above the fuel results in a combustion that is attuned to the fuel being used and in low polluting emissions The secondary air intake is regulated by the secondary air slider which is situated above the firebox door and behind the decorative trim The relevant marks 3 2 1 0 are on the top of the firebox doorframe Slider position 1 Required when burning coal or coke Slider position 2 For wood burning at partial load operation Slider position 3 Max air intake for wood burning and nominal output
26. l safety valve drip then the seal and valve seat must be cleaned The calcification status of the safety devices must also be checked at least once a year sensor for thermal safety valve e v sy Thermal safety valve e e uno RL ae n Supply Sik b o A En gt lt i 5 YN 2 E o egg E 9 Zee 5 c gils Q Duc D 2 O a gt E ea N t2 The NORM B 8131 regulations must be observed when connecting the thermal safety valve 10 stove Cover Optional The stove cover serves to cover the cooking surface when the stove is not in use In this case the flue connection must be connected at the rear or sides not at the top The stove cover is attached by inserting its two hinge pins into the hinge fittings on the stove frame back The stove cover may not be closed while the stove is in operation Insulation Cover optional The insulation cover is for covering the cooking surface of central heating stoves during operation When closed it reduces the amount of radiant heat the stove gives off into the room it is standing in In this case the adjustable rack must be in the lowest position The maximum filling height up to the lower edge of the firebox door must be adhered to Please observe the charge quantity for the different fuels for nominal output according to the table on page 16 The inside of the stove insulation cover has a special heat deflecting surface coating When caring for or cleaning
27. n Should the stove be left unused for a longer time then it is advisableto grease the cooking plate with acid free oil or some margarine after cleaning Naturally it should be wiped off the cooking plate again just before the next use If you follow these instructions you prevent rust and spot formation on the cooking plate and the stove keeps its good appearance Take care that the expansion gaps are always kept clear of encrusted deposits so that the plate can expand when subjected to heat Burned on food or fuel residues in the gaps can cause the steel cooking plate to Warp Where Can the Cleaning Agents be Bought 0 otahlfix Sidol Spezial and Collo profi are available in for example department stores electrical appliance section electrical appliance shops chemists shops supermarkets and in shops specialising in kitchens Malfunction Cause Solution A combination of factors is required for a trouble free operation of the stove Stove Correct assembly connection and start up Handling and Care Regular cleaning of the stove flue pipe and chimney according to the instructions in the Instructions Manual Chimney Correct dimensioning flawless condition Fuel Use of the recommended types of fuel of an adequate quality and dryness Weather conditions No downdraft in the chimney The following list contains possible problems their causes and the possible remedies Malfunction Possible Cause
28. n and increased soot and tar formation in the stove and chimney Too high a feed pressure would accelerate the combustion cause high flue gas temperatures damaging the appliance and greatly increase the fuel consumption Schematic View Flue Connection 1 Proper condition of the chimney Through good thermal insulation smooth interior surface tightness 2 Correct dimensioning of the chimney Cross section and effective height must be calculated according to the intended fuels and heat stress 3 Proper connection of the flue pipe Tight fit no cross section contraction slight upward inclination toward the chimney no projection into the chimney 4 When the chimney is used by more than one appliance Observe the minimum distance of 60 cm 9 Unused connection openings are to be sealed off with sealing covers 6 Sweeping and cleaning accesses mainly located in cellars or garret storeys are to be kept closed at all times Check the seals from time to time renew when necessary P Py Flue Connection Conversion The series stoves are delivered with a screwed on flue connecting piece in the back panel and can be directly connected to the chimney through an appropriate connecting pipe Changing the flue connection to the side 1 Remove flue connecting piece from the rear panel 2 Screw off outer cover from the side panel 3 Cut out insulation material 4 Screw off inner cover Sn Screw the included cover
29. nce respectively DURATION OF THE WARRANTY In principle LOHBERGER grants a 3 year full warranty on verifiable material or factory defects on every appliance Warranty expires in any case after five years following the manufacture of the appliance Certain restrictions apply to some models and parts for appliances with central heating insert the warranty depends either on the expert installation of a return elevation or the installation of a valve cabinet AME 4 EXCEPTIONS Exceptions are only parts subject to wear such as fireclay which is normal for an appliance used for heating Possibly occurring changes in colour or expansion cracks in the fireclay are dependent on the material and can never be completely ruled out However they do not impair the functioning of the appliance as long as the fireclay remains in the firebox Glass panes breakage of glass because of external hazard changes on the surface due to thermal influences such as sintered fly ash or soot at the surface of the viewing window Discolouring of paint due to overload or thermal strain Seals e g hardening or breakage due to thermal or mechanical strain Surface coatings frequent cleaning or cleaning with abrasive cleaning agents Castings which are subject to high thermal stress such as the JETFIRE flame bundling plate and grate START OF WARRANTY The start of warranty is the time the appliance is handed over Please keep this user manual as well as the warr
30. ollowing the An air exchange of at least 0 8 times per hour by means of a instructions in the Installation and Operating Instructions and having permanent and secure ventilation of the room must be ensured the locally responsible chimney sweep on hand to evaluate the construction or technical conditions In the case of tightly closing windows and doors or when other e When operating the appliance and during heating operation the appliances that extract air such as an exhauster hood a clothes directions in the Instructions Manual must be followed closely and dryer a ventilator or similar are in the same room in which the correctly Especially the instructions regarding safety and stove is located then it might be necessary to supply combustion air environmental protection are to be carefully observed from outside e Preferred fuel types are ecological high quality and dry See Fuels lf in doubt consult your chimney sweep on page 14 e Every stove requires a certain basic care at regular intervals Should this not be observed the likelihood of malfunctions breakdowns and damage increases automatically and results in annoyance and expense Parts subject to wear e g seals or high thermal stress brick clay cast parts or broken stove parts are to be renewed or replaced respectively as soon as possible e Heat at low output temperatures in the first 2 3 days That way the brick lining of the stove will dry out gradually and last long
31. owering the grate Grate Riddling Removing the ash from the grate takes place from the ash pan cavity side with the grate crank To do this the grate crank is fitted over the upper square head stud and turned in any direction If the grate air vents are heavily clogged or caked with ash or other combustion residues the grate should be completely removed and cleaned A EARR en 12 Cleaning Opening The cleaning door panel is secured by a ball latch and swings open The access cover behind it is fastened to the stove front with 2 wing nuts and should be removed to clean the heating flues draws Before replacing the cover check the rope seal of the access cover and replace when necessary Access cover with rope Ash Door Safety Device A bracket is mounted on the inside of the ash door This means that the ash door can only be opened in connection with the firebox door This prevents accidental overheating of the stove For this reason this bracket may not be removed Primary Air Control The amount of combustion air intake and thus the heat output is controlled by the primary air control It is operated with the control knob on the ash door In the O position the air regulator flap is closed in every other position 1 6 open to varying degrees Regular emptying of the ash pan is important because for example a mound of ashes reaching to the grate obstructs the primary air feed Air control To ensure that you
32. res 32 4T Oven grid shelf Width x depth mm 399 x 399 399 x 399 Stove without crate otove with crate Output Specifications Data for chimney calculation according to DIN 4705 Nominal heat output total Wood KW 19 20 21 Room KW 4 5 9 5 5 Boiler kW 15 13 8 15 5 Flue gas temperature Wood C 29 246 246 Is Nominal heat output Flue gas mass flow rate Wood g 15 7 15 7 15 7 Required feed pressure at nominal heat output mbar 0 18 0 20 0 20 Operating pressure Max bar 3 3 3 Operating temperature Max C 95 95 95 General Instructions is possible that the brick clay lining will crack This however doesn t impair the functioning of the stove Please note that every appliance can only function properly if it is e Open the damper only for the heating up phase Keep the firebox handled correctly and cared for Following a few important rules is and ash pan doors closed tightly at all times Avoid overheating the prerequisite to a superior reliability cost effectiveness low polluting stove e g red hot glowing steel cooking plate Damages caused combustion and long life These are as follows in this manner are not covered by the warranty e The stove must be assembled and connected by a qualified heating e Always ensure that there is an adequate supply of fresh air in specialist and meet the requirements of the valid regulations and the room in which the stove is located provisions applying to the respective installation site F
33. t into smaller pieces This way they catch fire easily and produce a higher heat output than the same volume of large logs Roofed over and stored outdoors whitewood pine or alder wood should be seasoned a good 2 years hardwoods even 3 years Gross calorific value of air seasoned soft woods 3 19 kWh kg Gross calorific value of air seasoned hardwoods 4 16 kWh kg The significance of the water content in wood in regard to the gross calorific value is shown in the following table Calorific value KWh kg 2 32 2 66 3 36 4 16 4 63 Water content 96 Wood storage Freshly felled wood Stored over winter Stored over summer Air seasoned Seasoned several years Charcoal Briquettes The water content of charcoal briquettes is very low the combustion is very rapid Calorific value of charcoal 4 40 kWh kg Unsuitable Fuels Damp wood bark waste sawdust wood chips Use brushwood wood wool wood shavings paper or cardboard only in very small amounts to kindle a fire The burning of such fuels results in significant pollutant emissions large amounts of ash and the heat output is comparatively low Prohibited Fuels Surface treated wood veneered painted impregnated etc particleboard rubbish of any kind packaging waste synthetics newspapers rubber leather textiles etc Burning these types of materials burdens the environment seriously and is forbidden by the lawmakers Furthermore damage to the
34. tch housing Knob for primary air control Oven hinge Oven door handle Ash scraper All purpose wrench Grate crank Cover with centre hole Cover w o centre hole Cover for steel cooking plate Ash pan Burner rope seals 5 0970 0980 1030 1040 1060 1070 1080 1100 1150 1160 1170 1220 9070 9080 9090 9095 Stove edging strip Decorative trim Wood storage drawer Drawer rail Ball latch Thermometer Oven grid shelf Stove frame compl Heating element compl Air bleed cock Adjustable grate compl Damper control knob Firebox door compl Ash door complete Oven door compl Oven viewing glass complete Appliance Dimensions ZEH 55 TH Probe fitting 72 female thread THS Therm safety valve 77 male thread Flow N Q 5 4 female thread Return O R 5 4 female thread ZEH 90 110 TH Probe fitting 72 female thread THS Therm safety valve 72 male thread Flow N Q 5 4 female thread Return O R 5 4 female thread all measurements in mm ZEH 90 ZEH 110 900 1100 600 600 850 850 100 100 ase recess 40 40 tove frame overhang lue connection diameter Flue connection rear Flue connection side Flue connection top Heating connection side Heating connection rear Technical Data ZEH 55 4 ZEH 90 4 ZEH 110 4 Working door opening Width x height mm 209 x 154 209 x 154 209 x 154 Width x depth 235 x 403 235 x 403 Charge cavity cooking surface m Fuel storage drawer capacity lit
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