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SHT Heiztechnik, 

aus Salzburg 

Operating instructions

 

M21/HB M27/GB 

Page 65 

 

 

SHT Heiztechnik aus Salzburg GmbH, A-5020 Salzburg-Bergheim, Rechtes Salzachufer 40  Tel. 0662-450444-0, Fax-DW 9

 

Our current general terms and conditions apply.Errors, printing faults and technical changes reserved

 

12.5

 

Annual servicing 

 
Servicing of electrical and mechanical components on the device must be carried out annually.  
We  recommend  that  this  servicing  is  carried  out  exclusively  by  SHT  customer  services  or  a  qualified 
specialised supplier. 
 
Check the following mechanical parts in regular intervals: 

Check tilting grate : 

  Caution!  Only  perform  on  an  installation  on  which  power  has  been  disconnected, 

danger of injury! 

 

 

After removal of the small ash draw, the tilting grate can be be 
pulled down by hand using a small lever.  
Slag residue, nails and other foreign bodies must be removed. 

Summary of Contents for Thermodual TDA 15

Page 1: ...ominal output Thank you for choosing one of our products Before installing and operating your boiler please read carefully all instructions assembly and installation instructions and operating instructions for the t th he er rm mo od du ua al l T TD DA A 1 15 5 2 25 5 3 30 0 4 40 0 In this way you will avoid unnecessary damage caused by incorrect installation or operation SHT Heiztechnik aus Salzb...

Page 2: ...in detail 12 7 4 Operation 14 7 5 Menu map 16 7 6 Menu item Dom Water 19 7 7 Menu item Heting circuit 22 7 8 Menu item 2nd Buffer HC3 4 27 7 9 Menu item Date Time 28 7 10 Menu item Pellethopper Refill 29 7 11 Menu item Fuel selection 30 7 12 Menu item Operation Hours 31 7 13 Menu item Buffer 32 7 14 Menu item 2nd Boiler 33 7 15 Menu item Sprache Language 34 7 16 Menu item Screed drying 35 7 17 Men...

Page 3: ...et the fuel specific requirements see storage room arrangement The boiler room installation space and fuel store must comply with the relevant constructional and safety regulations especially fire and personal safety regulations The storage room must only be entered after previous ventilation see also pellet storage room safety signs and when the installation has been switched off and power cut FL...

Page 4: ...tem only the pellet burner operates until split logs are placed in the boiler After the split logs are placed in position they are ignited automatically by the pellet burner and burn for their individual duration of combustion During the full combustion period of the split logs the pellet burner is turned off If the system heating hot water still requires energy after the combustion of split logs ...

Page 5: ...are not tied to fixed heating times the boiler only ignites the wood when heat is required e g at 5 30 in the morning Split log operation only with automatic ignition Fill the boiler with split logs and ignite the wood by pressing a button on the control panel This is much more convenient than manual lighting and the wood is only ignited the next time there is demand for heat Furthermore you do no...

Page 6: ...sters a temperature below 6 C After the level for Initial Heating Low Temperature Mode default setting 35 C the boiler switches to OFF During this phase the control device displays Risk of Frost DOM WATER burner activated B Protection of heating circuits If frost protection function is activated heating circuits are monitored by cyclically flushing of the heat circuit pumps for one minute every 20...

Page 7: ...a total of approx 1800 hours at nominal load total nominal load and partial load hours added together 4 2 Central heating room minimum distances to flammable materials The boiler must be installed in a specially provided central heating room that complies with the structural requirements If you use an automatic feed system then the pellet storage room must be laid out according to the above guidel...

Page 8: ...of dust How can you check the pressing quality of the pellets quickly and roughly Put a handful of wood pellets into a glass of water Good quality pellets sink due to higher density compared with water Poor quality pellets float due to low density compared with water 4 8 Split log quality Optimum combustion with maximum efficiency can only be achieved when the water content of the wood is not more...

Page 9: ...gases are now burned in the post combustion zone exothermal process Negative pressure by means of a suction fan directs the combustion air via the automatic primary and secondary air flaps 5 Initial commissioning Initial commissioning can only be carried out by SHT Heiztechnik trained personnel The following list is an extract of the points that the technician will follow when carrying out the ini...

Page 10: ...r 6 Pellet conveyor systems The t th he er rm mo od du ua al l T TD DA A boiler is operated by one of the three systems described below These systems convey the wood pellets from the fuel storage chamber to the boiler The layout of the store room and the assembly operation of these systems can be found in the separate technical documentation included with the respective delivery system 6 1 Optiona...

Page 11: ...e The boiler is controlled and regulated via its control device mounted on the top of the boiler s right side In the upper half of the control device a LC display is situated which functions to read the boiler data in its various menu levels Up button and burner switch Forward button USB connector SD card slot Down button Exit button Plus button Minus button 7 2 Home screen Boiler temperature Fuel...

Page 12: ...e process water is displayed 7 3 4 Outside temperature Here the current outside temperature is shown 7 3 5 Buffer fill level Here the current fill level of the buffer is displayed in Vessel full Temperature on top and bottom 75 C at least Vessel empty Temperature on top and bottom below 35 C 7 3 6 Boiler type Here the boiler type is displayed on which the setting is preset This setting is preset b...

Page 13: ...iteria are met buffer up temperature low Starting Burner starts ignites and heats the combustion chamber Working Burner runs in regular heating operation Stopping Burner stops residual material in combustion chamber will still be consumed Low press Burner is locked due to lack of water pressure in the heating Tilting The pellet grate is being cleaned tilted distinct rattling noise audible LogCheck...

Page 14: ...Heating circuit 1 7 4 2 Changing settings Every menu frame contains adaptable numeric values e g temperatures or text settings e g heating circuit operation mode To change those values text settings the field cursor has to be moved with the buttons or to the corresponding value and or text setting The field is set to a default position when entering the menu frame In the sub menu you activate the ...

Page 15: ...hed Button By pushing the Plus Minus button the value displayed in the field increases decreases or the text in the text settings changes Value Bild ausgetauscht Text setting NOTICE Changed numerical values have to be confirmed by pushing the button For text settings this is not required Button Enables the exit from the currently displayed menu frame With every pushing of the button you get into t...

Page 16: ... Testing button functions contrast and brightness settings In the main menu the frame Display Buttons can be opened There you can test the button functions At the same time contrast and brightness can be adjusted see arrow 7 5 Menu map Here the menu map is illustrated showing a majority of the control system s possibilities Depending on the default setting executed during Start up the menu map can...

Page 17: ...ztechnik aus Salzburg Operating instructions M21 HB M27 GB Page 17 SHT Heiztechnik aus Salzburg GmbH A 5020 Salzburg Bergheim Rechtes Salzachufer 40 Tel 0662 450444 0 Fax DW 9 Our current general terms and conditions apply Errors printing faults and technical changes reserved ...

Page 18: ... Heiztechnik aus Salzburg GmbH A 5020 Salzburg Bergheim Rechtes Salzachufer 40 Tel 0662 450444 0 Fax DW 9 Our current general terms and conditions apply Errors printing faults and technical changes reserved If you choose Next the Specialist Expert menu opens this section is password protected and is only accessible for authorised trained persons ...

Page 19: ...r Timeprog You can set a high high temperature or low Low temperature value see Dom Water Temp Setup High Temp The high loading start value applies at any time Timeprog inactive Low Temp The low loading start value applies at any time Timeprog inactive Frostprotection The frost protection loading start value applies at any time Timeprog inactive this value is preset and cannot be changed Status li...

Page 20: ...e loading process starts Loading Start 35 C This value is adjustable If the Domestic hot water temperature falls below this value during Low temperature see Dom Water Monitor the loading process starts Le If requested here the so called legionella function can be activated If YES is selected the word Day is displayed Day Via this field the day can be selected on which the legionella killing should...

Page 21: ...operation mode Auto High Low in the frame Dom Water Monitor has been selected the Loading start temperature of the dom Water cylinder at this frame will be changed automatically once the system time is inside the time slot of the Timeprog setup there If the numbers are set as in the picture the following functions will be executed 6 00 to 8 00 o clock Loading start high 8 00 to 19 00 o clock Loadi...

Page 22: ...tection It is heated until the frost protection ambient temperature setting is reached timeprog switched off Heating Start This function is designed for summer if the heating shall be activated after a bad weather period temporarilly for a few hours If you push the buttons displayed next to Heating start the heating is activated for 6 hrs Heating Stop If you push one of the above mentioned buttons...

Page 23: ...d thus heating is not required any longer see menu frame H circuit 1 temperatures Hightemp running Heating circuit heats to reach and keep the high room temperature setting see menu picture H circuit 1 Temperatures LowTempMode on Heating circuit heats to reach and keep the low room temperature setting see menu picture H circuit 1 Temperatures Frostprotect Operational mode is set to frost protectio...

Page 24: ...tion is requested nevertheless e g on a rainy summer day see H circ 1 Operational Mode actual 11 3 C Displays the current outside temperature average Heatcurve Via this field you access the menu frame H circ 1 Heatcurve see Navigating the menu Timeprogr Via this field the menu frame H circ 1 Timeprogr is accessed see Navigating the menu H circ 1 Timeprogram TU At entering this frame here the abbre...

Page 25: ...m 11 30 to 13 00 o clock Low temperature from 13 00 to 17 00 o clock High temperature from 17 00 to 22 00 o clock Low temperature from 22 00 to 6 00 o clock Week Via this field you access the menu frame H circ 1 Week see Navigating the menu This is an entering assistance if you want to set the same Timeprog for every day of the week you set the Timeprog for one day as requested access subsequently...

Page 26: ...side temperature between 10 C and 20 C increase the 36 C value by some C If the room gets too hot decrease the value accordingly If the requested room temperature is not reached at an outside temperature between 10 C and 5 C increase the 55 C value by some C If the room gets too hot decrease the value accordingly If the requested room temperature is not reached at an outside temperature between 5 ...

Page 27: ...ircuits domestic hot water circuits can get their heat In this case the heat is transported vie a feed pump and underground heating pipe from the first buffer at boiler to the second buffer Temp top Shows the actual temperature at the top of the buffer Charge Shows how many of the buffer are loaded Temp bot Shows the actual temperature at the bottom of the buffer Temp 1stBuff top Shows the actual ...

Page 28: ...eral terms and conditions apply Errors printing faults and technical changes reserved 7 9 Menu item Date Time Set time and date Here the actual time and the date is displayed For corrections access the adjustment frame via Set Here you can execute the requested correction exit via OK NOTICE The summer winter time changeover is executed automatically At 3 o clock on 25 October the time is set back ...

Page 29: ...he outside temperature falls below 6 C between 5 o clock and 23 o clock If the frost protection function is active emergency insertion can take place at any time NOTICE 2 In regular intervals depending on pellets consumption an automatic pellet hopper cleaning is executed For this purpose the automatic pellet hopper refill is blocked shown by a information message until the hopper is drained empty...

Page 30: ...t Ignition The pellets burner is only started to ignite the wood logs and switches of as soon as the wood logs burn For this purpose the burner switch must be set to ON After all wood logs have been consumed the burner switch is automatically set to OFF no pellets burner start is executed The boiler has to be refilled with wood logs and the burner switch must be set to ON Only Logs Automat Ignitio...

Page 31: ...s Insertion Displays the overall operation hours of the pellet insertion screw in hours Pellet Displays overall pellets consumption in tons This value is calculated according to insertion hours PelStarts Displays the overall number of pellets burner starts Ignitions Displays how often the electric ignition was used for pellet ignition If the fuel is ignited by the residual heat at insertion the el...

Page 32: ...rshold Manu Pellet burner starts if the top buffer temperature has fallen below an manually set temperature thershold This can be requested in special cases e g Logs only autmoatic ignition pellets burner should start not until top buffer temperature has fallen below 40 C or larger installations that require a constant buffer temperature NOTICE If set too low the heating circuits are maybe not sup...

Page 33: ...tivated 1st boiler is not activated Peakload The 2nd boiler is activated if the expected buffer loading duration to the required temperature level is longer than 2 hrs As soon as the temperature is reached the 2nd boiler is deactivated Boilerorder Here it can be entered after how many operation hours the lead changes from one boiler to the other one The lead boiler starts first in case of a heat d...

Page 34: ...sttime xxh Boiler 2 Resttime xxh Here the duration of the actual boiler 1 or 2 being lead boiler is displayed Demanded not demanded Displays if lead boiler is demanded if there is a heat demand or not Supportboiler Boiler 1 Delay 300s Boiler 2 Delay 300s If the supportboiler is demanded a delay time has to elapse before activating it it is displayed here Demanded not demanded Displays if support b...

Page 35: ...ed In this frame a fix flow temperature for each heating circuit can be set in order to dry the screed Please follow the instructions of the screed manufacturer H circ 1 Off On If the text selection is switched from Off to On the corresponding heating circuit heats with the flow temperature shown next to Temp e g in the picture above 15 C heating circuit operation mode outside or ambient temperatu...

Page 36: ...vated manually and each input can be read Buttons select next entry each output has several corresponding inputs I e with every pushing of buttons or either the next output in line 2 or the next input in line 4 shows up With button the drive shown in line 2 is switched on The button icon on top right of line 2 switches to 1 drive is running With the next pushing of the button the drive switches of...

Page 37: ... Off to On if everything is alright after 10s The data is logged in the CSV format and can be read and illustrated in diagrams with a spreadsheet software such as Excel During boiler activities such as Starts or LogCheck a data record is logged every 10s otherwise every 60 s The data record length depends on the basic setting of the control system number of heating circuits type of conveyor 2nd bo...

Page 38: ...Info or the symbol 2 NOTICE Deleted via button or In certain stati a question is posed after a user action e g closing the door Did you fill log s To answer it follow the instructions on the display 3 QUESTION In this case push the button if logs were filles and button if not An error is displayed if a status occurred that infringes or prevents the heating operation e g Error 28 check storage room...

Page 39: ...ick is activated Every Friday the pumps are switched on for 60s to prevent rusting during longer heating intervals WHAT TO DO Nothing INFO 7 Probably PELLET in the ASHBOX Please dump Displayed if the burner switch is set to OFF during the Feeding phase while Pellet Starting is being displayed WHAT TO DO Follow the Info content INFO 8 Automatic Pellethopper emptying active Pellet refill temporarily...

Page 40: ...ng phase WHAT TO DO Nothing INFO 16 Logoperation STARTING Displayed for approx 2s at the and of the Logs Starting phase WHAT TO DO Nothing INFO 17 Logoperation STOPPING Displayed for approx 2s at the and of the Logs Stopping phase WHAT TO DO Nothing INFO 18 Request for boiler service Displayed if the Service request function is set to ON in the Basic setting 16v17 menu frame and the amount of oper...

Page 41: ...OFF and stopping completed Displayed if out input test boiler is recalled the burner switch is set to ON and the burner is not in standstill homescreen pellets or logs starting working or stopping WHAT TO DO Nothing NOTICE I O Board add on module 1 EW 1 module required Actuation see descripton point 8 NOTICE Busmodule 2 H circ control XL busaddress setting 2 required Actuation see descripton point...

Page 42: ...iler manual subsequently until a distinct Click can be heared ERROR 13 currently not available ERROR 14 Insertiontemp during feeding too high CHECK DEPESSUR FLAP This ERROR report displays a possible technical failure at the boiler or installation only qualified personal can fix Displayed if the temperature at insertion probe has increased by 8 C since the start This report will be deleted after 1...

Page 43: ...f paint in the area of the probe at the insertion duct in this case the cause for the burnback must be removed usually caused by leak at insertion area WHAT TO DO Delete report see point 8 If displayed repeatedly please contact your customer service ERROR 22 currently not available ERROR 23 Reset DONE Displayed if a factory reset has been triggered This happens either automatically after software ...

Page 44: ...nstallation only qualified personal can fix Displayed if the fuel has been consumed combustion chamber temperature has fallen WHAT TO DO Delete the message see point 8 In the majority of cases lack of fuel is the cause Please check If this is the case refill fuel and set burner switch to ON ERROR 30 PLEASE DO BOILER CLEANING Displayed if the automatic air circulation is exploited In detail If the ...

Page 45: ...n Probe DISTURBED This ERROR report displays a technical failure of the installation only qualified personal can fix Displayed if the return mixer has been activated set to ON in the basic settings menu and the boiler return probe signal is either far over or under the normal range larger than 130 C or smaller than 30 C The mistake can lie with the probe itself e g moisture intrusions or with cabl...

Page 46: ...al mode switch or temperature dial at heating circuit 1 lies either far over or far under the normal range larger than 4900 ohm or smaller than 20 ohm Error can be caused by e g a wrong connection or because a wrong room device has been mounted But it can also be caused by a room device failure WHAT TO DO Delete the message see point 8 Heating circuit can continue operation because the system igno...

Page 47: ... the pipe piece the probe has to be screwed into is free from any residues before reassembly ERROR 53 Dom water1 probe DISTURBED This ERROR report displays a technical failure of the installation only qualified personal can fix Displayed if the domestic hot water 1 probe signal is either far over or under the normal range larger than 130 C or smaller than 30 C The mistake can lie with the probe it...

Page 48: ...d person as soon as possible ERROR 59 currently not available ERROR 60 One of the DOORS had been OPENED for TO LONG OFF This ERROR report displays a possible technical failure at the boiler only qualified personal can fix Displayed if the door has been opened for longer than 10 minutes during burner operation pellet or logs Since a door opened for too long can cause smoke leaking and flames can bl...

Page 49: ...n as possible ERROR 67 Roomdev 4 probe DISTURBED This ERROR report displays a technical failure of the installation only qualified personal can fix Displayed if the Roomdev 4 probe signal is either far over or under the normal range larger than 130 C or smaller than 30 C Error might be caused by e g a wrong room device or a failure of the room device WHAT TO DO Delete the message see point 8 Heati...

Page 50: ... duration of the minimum running time up to 1 5 hrs afterwards the burner switch is set back to OFF WHAT TO DO Delete the message see point 8 Check fuel reserves to ensure the frost protection operation ERROR 72 Temperature Dom water 6 C BURNER ACTIVATED In status burner OFF home screen OFF the boiler temperature has fallen below the frost protection limit 6 C the pellet burner is activated until ...

Page 51: ...o the safety lever stop 3 Operate the safety lever by pressing from above 4 Fully open fuel chamber door In principle during the period of greatest development of low temperature carbonisation gas up to 2 hours after the last filling the fuel chamber doors should not be opened Opening the fuel chamber door in operation Open the fuel chamber door only up to the safety lever stop and pause for 5 sec...

Page 52: ...of the channel into the ash tray below IMPORTANT Do not remove the grate and leave about 1 cm residual ash in the pan This reduces wear Load kindling wood Fill the fire pan half full 5 to 10 cm with kindling wood Do not use wood shavings saw dust or material that is chopped too small The pellet burner consumption hole bottom right should be closed for it With the kindling wood embers are created q...

Page 53: ...re If this is above 80 C it is a sure sign that the accumulator tank is already too full In addition pay attention to the temperatures in the accumulator tank The following rule of thumb will help you in assessing the required quantity of wood To fill an empty buffer e g from 45 C to 80 C the following quantities suffice 1 500l buffer approx 61 kWh 1 3 filling with softwood up to approx 10 cm bene...

Page 54: ...touch the back panel Slide in paper ball and ignite manually Burning hazard Use protective gloves Slide in 3 paper balls 1 ball approx corresponds to 2 tabloid size pages between log stack and boiler front panel to the bottom with some space in between them Light two other paper balls with a lighter and place them on top of the aforementioned at the front Close filling hatch start log heating oper...

Page 55: ...hat you can lay on wood check the buffer temperatures upper centre lower Open the fuel chamber door to the safety lever stop Wait about 10 seconds until the fuel chamber door can be fully opened Prevents strong smoke emission Afterwards insert amount of logs according to demand Use protective gloves for this purpose During pellet operation insert the bottom layer with smaller logs athwart and stac...

Page 56: ...ler closes down No heating is possible until the fuse has been renewed Switch of the current to the complete system before changing the fuse Unlock STL Step 1 Unlock STL Step 2 Unlock STL Step 3 1 First unscrew the STL cover cap 2 Unlock the STL by pressing it with a ball point pen for example until an audible click is heard The STL engages does not function until the temperature drops 3 Re fit co...

Page 57: ...matically NOTICE 1 To prevent long stoking delays measurements should be executed during operation i e in winter when the boiler is running at full capacity If a cold boiler boiler temperature below 50 C is started up for measurements it can take up to 3 hrs until there is sufficient heat Activating measurement operations From standstill Push for 2s NOTICE Wait until the conditions for measurement...

Page 58: ...erature 45 C reaches at least the value in brackets 72 C NOTICE If heating room ambient temperature below 10 C and if boiler was cooled off before measuring operation the loading to the minimum temperature can take up to 3 hours Troubleshooting The boiler temperature after loading is 70 C after heating and keeps constant Possible cause 1 Return temperature too low with a return temperature of appr...

Page 59: ...ause 2 Doors or heat exchanger lid leaking Solution Stop burner check door and lid tightness Possible cause 3 Lambda probe deviates measured value too high Solution Adjust corrected value see section Oxygen correction Oxygen value too low Possible cause 1 Very dry wood embers core gets too big Solution Wait until oxygen value rises or repeat measurement with better suited wood Possible cause 2 Lam...

Page 60: ...y see also OFF or ON NOTICE 1 After deactivating the measurement operation the operation mode is automatically reactivated that was active before the activation E g before the activation the burner switch was set to OFF and the fuel selection was set to Only logs with activating the measurement operation the burner switch is set to ON and the fuel selection to Pellets Logs After deactivation the b...

Page 61: ...consumption by approx 7 The necessity for more or less frequent cleaning depends on the operating time the boiler output and the fuel quality Wood and wood pellets contain non combustible components minerals that result in the generation of ash Until you are familiar with the system and the fuel you should carry out inspections at regular intervals Cleaning the heat exchanger The thermodual 30 40 ...

Page 62: ...tch remove the log grate from combustion chamber and push the ash through the opening by the means of the stoking tool Close the filling hatch afterwards open ash door and push the ash from the combustion chamber into ash tray Repeat this process several times and insert the log grate again long lug at the back afterwards Incorrect insertion of log grate can affect the boiler functionality An ash ...

Page 63: ... disposal and cleaning of combustion chamber Scrape fuel chamber side panels Scrape the vertical surfaces in the fuel chamber with the stoking tool If these areas are heavily tarred and can only be cleaned with difficulty then run the boiler for several hours in pellet operation After that the surfaces can be cleaned much easier Cleaning of fuel chamber air ducts Clean air intake ducts and smoke g...

Page 64: ... heat exchanger lid We recommend the use of an industrial vacuum cleaner with automatic filter cleaning or a commercial ash tray NOTICE Clean the smoke pipe at least twice a year Remove the cleaning opening of smoke pipe or pull out the smoke pipe out of the boiler Vacuum off the entire ash residue between boiler and chimney completely Your chimney sweep can execute this too 12 4 Clean feeding sys...

Page 65: ...al servicing Servicing of electrical and mechanical components on the device must be carried out annually We recommend that this servicing is carried out exclusively by SHT customer services or a qualified specialised supplier Check the following mechanical parts in regular intervals Check tilting grate Caution Only perform on an installation on which power has been disconnected danger of injury A...

Page 66: ...w Voltage Directive 2006 95 EG as well as the relevant technical safety regulations implemented by them The production process is subjected to an ongoing relevant quality control programme and is certified periodically by an accredited test institution The boiler models comply with the legal requirements and relevant standards for marketing according to Art 15a BVG on the basis of EN 303 5 In this...

Page 67: ...mended and supplied spare parts Non observance means the guarantee is void To ensure prompt limitation of damage the GUARANTEE CLAIM must be submitted by the claimant to a SHT dealer with the invoice and details of the order number model name serial number purchase date as well as the grounds for the complaint in writing REPLACEMENT UNDER THE GUARANTEE comprises the free delivery of spare parts Ho...

Page 68: ... to ÖNORM M 7137 A warning sign must be placed on the door of the pellet storage space Before entering the storage space ensure it has been ventilated for at least 15 minutes When working in sealed storage spaces and containers or underground tanks a second person must always be in attendance outside the storage space The doors must always be open when you enter the storage space The storage room ...

Page 69: ...hufer 40 Tel 0662 450444 0 Fax DW 9 Our current general terms and conditions apply Errors printing faults and technical changes reserved 17 Customer services and spare parts If you have any questions contact your distributer 18 Your specialist company Your SHT Heiztechnik aus Salzburg GmbH A 5020 Salzburg Bergheim Rechtes Salzachufer 40 Tel 43 662 450444 0 Fax 43 662 450444 9 email info sht at Int...

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