Installation manual
Contents
1. Remove the glass strips Unscrew the 3 parkers of the upper glass strip Hold the pane and remove the upper glass strip Remove the pane from the slot at the underside 6 9 1 2 Placing the front pane Placing the front pane will take place in reverse order of the removal procedure described above ICaution Do not screw the parkers on too tight to prevent breaking and or slipping tight tight English 11 English TRIO INSTRUCTION FOR INSTALLATION 6 9 2 Side panes The side panes should be removed in case of torn or broken panes 6 9 2 1 Removing the side pane Follow the steps below for removing Ma Carefully remove the top plate from the appliance so that the lacquered pipe piece will not be damaged The top plate is loose Ia Slide the housing upwards at the side see Photo 13 a Remove this part of the housing Ma Unscrew the 3 parkers at the top by using the socket spanner Ia Hold the pane and remove the glass strip Ia Remove the pane from the slot at the underside 6 9 2 2 Placing the side pane Placing the side pane will take place in reverse order of the removal procedure described above ICaution Do not screw the parkers on too tight to prevent breaking and or slipping tight tight See the User Manual chapter 4 Operation for the operation of the appliance 7 1 Wireless remote control The wireless remote control consists of a remote control and a receiver Bel2. on a heat resistant intermediate plate when passing through combustible material Attach the wall duct from the outside with four screws in their respective holes 6 5 3 Application with roof duct 6 5 3 1 Construction of concentric system with roof duct The concentric system with roof duct has to comply with the following conditions The construction of the chosen system has to be allowed See the procedure described below First a concentric pipe of at least 1 meter should be connected vertically to the appliance Depending on the construction the appliance is set by means of the baffle and or the air inlet guide In the following procedure you can see how the allowability of a concentric system can be determined and which settings are needed Determine the following data 1 The number of bends required no distinction is made between 45 and 90 bends 2 The total number of meters of horizontal pipe length 3 The total number of meters of vertical and or sloping pipe length With these data and Table 1 you will be able to determine whether the concentric system is allowed In Table 2 you can see which setting the appliance needs Follow the procedure described below In the first 2 columns of Table 1 look for the number of bends required and the total horizontal pipe length In the 3rd column of Table 1 look for the total vertical and or sloping pipe length If you end up in a box with the letter A B C D or E the
3. and or alongside metal parts in order to prevent weakening of the spark Ia avoid damaging the panes during removal placing Ia clean the panes before you use the appliance in order to prevent dirt from burning in the glass 5 Removing the packaging Note the following items when removing the packaging Ila Check the appliance for damages during transport Ila If necessary contact DRU Service Ia Take the parts box and the wood set from the space behind the door at the bottom of the appliance In appendix 1 table 5 page 17 you can see which parts you should have after removing the packaging im Remove both woodscrews from the bottom plate connecting the appliance to the platform Mia Contact DRU Service if you do not have all the parts after you finished removing the packaging Ma Dispose packaging in accordance with local regulations 6 Installation Read this manual carefully to ensure a proper and safe operation of the appliance ICaution Install the appliance in the order described in this chapter 6 1 Regulations Observe the applicable installation regulations Observe the regulations instructions in this manual 6 2 Type of gas The type plate indicates for which type of gas gas pressure and for which country this appliance is intended The type plate can be found behind the door on the back wall of the space at the bottom of the appliance Ma Check whether the appliance is suitable for the type of gas and the gas pre
4. competent installer in the field of atmospheric gas heating Check at least whether the appliance is working properly and safely Caution Closethe gas tap when performing maintenance work Checkthe gastightness after repair After replacing the thermocouple you should first tighten the swivel of the gas control block by hand and then give it another quarter turn with a suitable spanner La If required clean the following components the pilot flame burner the combustion room the panes Caution Remove place the front pane as described in section 6 9 1 Remove the deposit on the inside of the pane with a damp cloth or a non abrasive detergent such as copper polish Avoid remove fingerprints on the pane as they will burn into the glass Replace a torn or broken pane as described in section 6 9 Caution If necessary place back the wood set correctly see section 6 8 Ia Inspect the flue gas discharge combustion air supply system IL Perform a check as described in chapter 8 10 Delivery You must explain to the user how he should operate the appliance You should instruct her him for instance on using the appliance for the first time the operation of the remote control annual maintenance Caution Tell the user to close the gas tap immediately in case of malfunctions bad performance and contact the installer in order to prevent dangerous situations ndicate the location of the gas tap Ma Instruct the user about t
5. concentric system chosen by you is allowed Use Table 2 to determine which conditions apply for the baffle and or the air inlet guide for placing setting see section 6 7 Examples To clarify we will give 2 examples to determine the allowability of a concentric system and the conditions for setting the appliance In Table 1 the route to be followed is indicated by arrows The result is outlined in red Example 1 1 3 bends 2 3 meters horizontal 3 5 meters vertical sloping Construction of this concentric system is allowed Situation D applies for setting the appliance Example 2 1 4 bends 2 3 meters horizontal 3 11 meters vertical sloping gt Construction of this concentric system is not allowed TRIO INSTRUCTION FOR INSTALLATION Table 1 Relation construction concentric system setting appliance G31 total number of total number of meters vertical and or sloping pipe length meters horizontal pipe length 15 6 7 8 9 10 Ju 12 no bends O B 2 bends O English 5 bends W construction is not allowed Table 2 Conditions for setting the appliance Situation Air inlet guide Baffle Distance restriction A NO YES 60 mm B NO YES 48 mm C NO YES 43 mm D NO YES 38 mm E YES YES 33 mm 6 5 3 2 Placing concentric system with roof duct The roof
6. duct can end in a sloping and a flat roof The roof duct can be supplied with an adhesive plate for a flat roof or with a universally adjustable tile for a sloping roof Place the concentric system as follows gt Build the system up from the connection stump of the appliance Caution Maintain a distance of at least 50 mm between the outside of the concentric system and the walls and or the ceiling Use heat resistant isolation material when passing through combustible material ICaution Some heat resistant isolation materials contain volatile components that will spread an unpleasant smell for a pro longed time these are not suitable IL Remove the top plate from the appliance this plate is loose Ma Remove the cover plate by unscrewing the 2 parkers see Photo 1 page 6 Ma Place a lacquered pipe piece on the appliance Ia Apply a lacquered clip binding with silicon sealing ring onto the connection between appliance and pipe piece Ia Refit the cover plate with the 2 parkers Ia Place the top plate carefully onto the appliance so that the lacquered pipe piece will not be damaged Ma Connect the horizontal lacquered concentric pipe pieces and if necessary the bends Ia On each connection apply a lacquered clip binding with silicon sealing ring IL Use a parker to fix the clip binding to the pipe on locations that are unreachable after installation 7 Bes English TRIO INSTRUCTION FOR INSTALLATION gt
7. 806014 p 9V block battery 1X 923001 p Penlite battery AA type 4x 923100 B Squeeze coupling 15 mm x G3 8 1X 149234 Appendix 2 Technical data In the following table you can find the technical data Table 6 Technical data Type C11 C31 Type of gas G31 Burner pressure mbar 30 Nom load Hs kW 5 8 Nom load Hi kW 52 Nom output kW 4 0 Consumption L h 213 Burner injector n front 0 90 rear 0 90 Consumption on low output L h 142 Low setting injector mm 1 20 Pilot flame injector code 30 Efficiency class 2 Appendix 3 Parts Parts can be ordered through www druservice nl ING 16 TRIO INSTRUCTION FOR INSTALLATION English 17 BS X TRIO 18 TRIO 19 DRU Verwarming B V The Netherlands Postbus 1021 NL 6920 BA Duiven Ratio 8 NL 6921 RW Duiven EN N x x O 0 a LA OY f
8. Instructions for installation GB IE Please retain this document carefully CE UK English English TRIO INSTRUCTION FOR INSTALLATION page Preface 2 1 Introduction 3 2 CE Declaration 3 3 Safety 3 3 1 General 3 3 2 Regulations 3 3 3 Precautions safety instructions during installation 3 Instructions 4 5 Removing the packaging 4 6 Installation 4 6 1 Regulations 4 6 2 Type of gas 4 6 3 Gas connection 4 6 4 Placement of the appliance 4 6 5 Flue gas discharge combustion air supply system 5 6 6 Connecting gas 8 6 7 Setting the appliance 8 6 8 Placing the wood set 9 6 9 Panes 9 7 Operation 12 7 1 Wireless remote control 12 8 Final check 13 8 1 Gastightness 13 8 2 Gas pressure pre pressure 13 8 3 Ignition pilot and main burner 13 8 4 Flame image 19 9 Maintenance 14 10 Delivery 14 11 Malfunctions 15 Appendix Parts included with the delivery 16 Appendix 2 Technical data 16 Appendix 3 Parts 16 gt Tip ICaution Caution DRU a manufacturer of gas heating appliances develops and produces products that comply with the highest qua lity performance and safety requirements This guarantees that the user will be able to enjoy using his product for many years to come This appliance has a CE marking which means that it complies with the essential requirements of the European gas appliance directive As an installer you must be competent in the field of atmosp
9. aution gt In In In In In I In In In In Place the appliance on its destined location Place the appliance at a distance of at least 40 mm from the back wall Do not cover the appliance and the discharge material and or do not wrap it in an insulation blanket or any other material 6 5 Flue gas discharge combustion air supply system 6 5 1 General The appliance is of the C11 C31 type The appliance is connected to a combined flue gas discharge combustion air supply system hereafter referred to as the concentric system The passage to the outside can be made with a wall duct see section 6 5 2 or with a roof duct see section 6 5 3 If necessary you can also use an existing discharge channel see section 6 5 4 Only use the concentric system supplied by DRU 0100 0150 mm This system was tested in combination with the appliance DRU cannot guarantee a proper and safe operation of other systems and cannot accept liability for these systems Forconnecting to an existing chimney flue you should only use the installation set supplied by DRU The concentric system is constructed from the discharge stump of the appliance If structural circumstances require that the concentric system is placed first the appliance can later be connected with a telescopic pipe piece DRU does not recommend placing the telescopic piece because this visible pipe piece cannot be supplied in colour and does not really co
10. eral times 2 No spark at the pilot flame 2 Check ifthe ignition cable is lying free from burner metal parts If necessary move it away from the metal parts f necessary replace the ignition cable If necessary replace the ignition pen 3 Injector is blocked up 3 1 Clean the injector 3 2 If necessary replace the injector D Pilot flame is burning but there is no gas flow to the main burner l Button A on the gas control block is in position Button B on the gas control block is on pilot flame position see Photo 14 Pre pressure of the gas is too low Damaged magnet valve 1 Turn button A to the position see Photo 14 P Increase flame height by turning button B counter clockwise or by pressing on button A of the remote control Check the pre pressure If necessary activate energy mode Replace the gas control block 15 English TRIO INSTRUCTION FOR INSTALLATION Appendix Parts included with the delivery In the following table you can find the parts that are supplied with the appliance Table 5 Parts included with the delivery Part Quantity Order number Wood set 1X 806560 Installation manual 1X 95900401 User manual 1X 95800200 Setting template for baffle 1X 38714251 Baffle 1X 38741363 Spare parkers for mounting the front pane Socket spanner 1X 790811 Remote control with receiver 1X
11. etal parts 8 3 2 Main burner The main burner is ignited with button B on the gas control block Button B can be operated by the remote control and by hand see the User Manual chapter 4 Operation Caution The burner should ignite smoothly and should not pop as a result of postponed ignition gt Check the function of the main burner from the pilot flame position after opening the gas valve the main burner should burn within a few seconds If the main burner does not burn gt Check if button A on the gas control block is in the position 0 i Lun Check if the space surrounding the pilot flame is free from objects Ma Check the placement of the wood set Ln If necessary correct the abovementioned failures Ia Test the main burner 5x for a good operation 8 4 Flame image The flame image can only really be assessed when the appliance has been burning for several hours Volatile components from paint materials etc which evaporate in the first hours will affect the flame image Check the flame image AM If the flame image is not acceptable this can be due S Pre pressure TO Burner incorrect placement of the wood set 1 pressure D If necessary improve the placement of the wood set ali the evaporation of volatile substances English English TRIO INSTRUCTION FOR INSTALLATION Once a year the appliance should be checked cleaned and if necessary repaired by a
12. gt gt ICaution Ma ICaution 1 a gt ICaution 1 a Ld Ld Ld Ld Apply sufficient clamps so that the weight of the pipes does not only rest on the appliance Determine the remaining length of the roof duct Make sure the roof duct has the right dimensions Make sure that the right insertion length is maintained Connect the roof duct to the concentric pipes Make sure that the universal tile fits well with the surrounding tiles Make sure that the adhesive plate fits well onto the flat roof 6 5 4 Connection of existing chimney flue It is possible to connect the appliance to an existing channel A flexible SS pipe is placed in the chimney for discharging flue gases The surrounding space is used to supply combustion air The following requirements apply when connecting to an existing chimney flue only allowed when used in combination with the special DRU chimney installation set The installation regulation is also supplied the dimensions should be at least 150 x 150 mm the vertical length has a maximum of 12 meters the horizontal length has a maximum of 3 meters the existing chimney flue has to be clean the existing chimney flue has to be closed 6 6 Connecting gas Use the following procedure when connecting the gas see section 6 3 Gas connection If necessary blow through the gas pipe Connect the gas pipe with gas tap to the gas control block Youcan find the gas control block beh
13. he appliance and the remote control IS When the appliance is started for the first time point out that when the appliance is stoked up for the first time volatile components evaporate from paint materials etc when evaporating the appliance should preferably be set at the highest level theroom should be well ventilated IL Give the user manual and installation manual to the user the installation manual should be kept near the appliance 14 TRIO INSTRUCTION FOR INSTALLATION 11 Malfunctions In the following table you will find an overview of malfunctions that might occur the possible causes and the remedies Table 4 Troubleshooting Problem Possible cause Remedy A No transmission mo tor will not run l Empty batteries d ICaution Avoid short circuit between the batteries Replace batteries and metal parts of the appliances 2 Receiver is damaged 2 Replace the receiver 3 Remote control is damaged 3 Replace the remote control 4 Motor cable at gas control 4 Replace the motor cable block is broken B No ignition spark 1 Ignition cable runs over and or 1 Do not place the ignition cable over and or alongside metal parts along metal parts This will weaken the spark If necessary replace the ignition cable 2 lgnition pen corroded 2 Replace the ignition pen C No pilot flame 1 Airin the pilot flame pipe 1 Flush the pipe or start the ignition process sev
14. heric gas heating Two manuals are supplied with the appliance the installation manual and the user manual The installation manual will give you the information you need to install the appliance in such a way that it will ope rate properly and safely This manual discusses the installation of the appliance and the regulations that apply to the installation In addition you will find technical data for the appliance and information on maintenance any malfunctions that might occur and their possible causes Please carefully read and use this installation manual The following symbols are used in the manual to indicate important information Work to be performed Suggestions and recommendations You will need these instructions to prevent problems that might occur during installation and or use You need these instructions to prevent fire personal injury or other serious damages After delivery you should give the user manual and this installation manual to the user TRIO INSTRUCTION FOR INSTALLATION 1 Introduction The Trio is a freestanding atmospheric gas heating appliance This version of the Trio is suitable for propane The Trio is a closed appliance A closed appliance does not extract the combustion air from the living environment but from outside This is done through a combined flue gas discharge system combustion air supply system In this concentric system the outer pipe serves as air supply and the inner pi
15. ind the door in the space at the bottom of the appliance Donotturn the gas tap when connecting the gas pipe Bleed the gas pipe 6 7 Setting the appliance The appliance has to be set in such a way that is works correctly in combination with the discharge system For that purpose it is possible to install a baffle and or an air inlet guide For the conditions see section 6 5 2 1 for application with wall duct and section 6 5 3 1 Table 2 for application with roof duct 6 7 1 Baffle R The baffle R is supplied separately Follow the procedure below when placing the baffle Remove the front pane as indicated in section 6 9 1 Place the baffle see Fig 3 Use the template supplied to set the distance of the restriction see Fig 4 as follows A distance of 33 mm means that the baffle is closed to a maximum level A distance of 38 43 48 and 60 mm is set by using a template Fix the baffle by using the socket cap screw S 38c 1220 TRIO INSTRUCTION FOR INSTALLATION 75 ICaution ICaution 6 8 Placing the wood set The appliance is supplied with a wood set Strictly observe the following instructions to prevent unsafe situations only ever use the supplied wood set place the wood set exactly as described make sure the pilot burner and the space around it are kept free from objects see Photo 2 make sure that the slot between the burner tray and the tray surrounding the bur
16. ish 12 TRIO INSTRUCTION FOR INSTALLATION 8 Final check In order to check whether the appliance is working connectors properly and safely you must perform the following checks before the appliance is used 8 1 Gastightness Caution All connections must be gastight ICaution The gas control block can be subjected to a maximum pressure of 50 mbar Lun Check the connections for gastightness receiver 8 2 Gas pressure pre pressure sensor The burner pressure is set at the factory see type holder al plate It is not necessary to check the burner pres sure The pre pressure in house installations however should be checked as they can vary gt Check the pre pressure see Photo 16 for the measuring nipple on the gas control block Ila Contact the gas company if the pre pressure is not correct 8 3 Ignition pilot and main burner For igniting the pilot and main burner see the User Manual chapter 4 Operation Caution Always wait 5 minutes after the pilot flame has gone out before you re ignite the appliance 8 3 1 Pilot flame Check the ignition of the pilot flame the pilot flame burner should start at the first attempt If the pilot flame does not burn Lun Check if the ignition sparks a If not the ignition cable is probably not lying free from metal parts b If it does there is probably still air in the pipe Ma Bleed the pipe and or gt Lay the ignition cable free from m
17. lations 3 3 Precautions safety instructions during installation Carefully follow the following precautions safety regulations you should only install and maintain the appliance if you are a competent installer in the field of atmospheric gas heating do not make any changes to the appliance only use the flue gas discharge combustion air supply system supplied by DRU place the appliance at a distance of at least 40 mm from the back wall do not cover the appliance and the discharge material and or do not wrap it in an insulation blanket or any other material always place the appliance and or the discharge pipes at a minimum distance of 500 mm from combustible objects or materials only ever use the supplied wood set place the wood set exactly as described make sure the pilot burner and the space around it is kept free avoid dirt in gas pipes and connections check the connections for gastightness before using the appliance avoid blocking of the pressure equalization hatch on top of the appliance check whether the pressure equalization hatch fits well onto the sealing surface do not ignite the appliance until it is fully installed replace torn or broken panes English English TRIO INSTRUCTION FOR INSTALLATION 4 Instructions Observe the following items during installation in order to guarantee a proper and safe operation of the appliance Ia avoid that the ignition cable runs over
18. mbine well with the appliance 6 5 2 Application with wall duct 6 5 2 1 Construction of concentric system with wall duct The concentric system with wall duct has to comply with the following conditions see Fig 2 First a concentric pipe of at least 1 meter should be connected vertically to the appliance The total vertical pipe length can have a maximum of 4 meters On the vertical part a bend of 90 is connected Only wall ducts are allowed Under these conditions the baffle should be set to 60 mm see section 6 7 the air inlet guide will not be placed 6 5 2 2 Placing concentric system with wall duct Place the concentric system as follows Build the system up from the connection stump of the appliance Maintain a distance of at least 50 mm between the outside of the concentric system and the walls and or the ceiling Use heat resistant isolation material when passing through combustible material The rosette mounting inner plate of the wall duct is too small to seal the 250 mm opening when passing through combustible material That is why you should first apply a sufficiently large heat resistant intermediate plate to the wall Then the rosette is mounted on the intermediate plate Some heat resistant isolation materials contain volatile components that will spread an unpleasant smell for a pro longed time these are not suitable Remove the top plate from the appliance this plate is loose Remove the co
19. ner is kept free from objects 6 8 1 Wood set The wood set consists of vermiculite see Photo 3 chips see Photo 4 and a number of blocks Fill the burner tray with vermiculite equally spread the vermiculite see Photo 8 You can influence the flame image by moving the vermiculite yet theburner deck has to remain covered with vermiculite in order to prevent that the life expectancy of the burner is reduced Fill the tray around the burner with chips equally spread the chips Identify blocks A up to F by using Photo 5 Use the burn stains on the blocks for identification First place blocks A and B see Photo 6 Place block A in such a way that the pilot flame and flame opening are not covered Photo 6 shows how it should be done and Photo 6a shows how it should not be done Then place blocks C up to F see Photo 7 6 9 Panes 6 9 1 Front pane After placing the wood set you can place the front pane as described below Avoid remove fingerprints on the pane as they will burn into the glass UK English INSTALLATION INSTRUCTION FOR TRIO ys l3u3 PLL E p ro siria T A I 10 TRIO INSTRUCTION FOR INSTALLATION I gt I In I In 6 9 1 1 Removing the front pane When removing the front pane you should observe the instructions below see Photo 9 to 12 Open the door Unscrew the 6 parkers of the glass strip at the sides by using the socket spanner supplied
20. ow you can read how you should connect the receiver the operation of the wireless remote control will be discus sed in the User Manual chapter 4 Operation 7 1 1 Connecting the receiver The receiver is placed behind the door in the space at the bottom of the appliance The gas control block is also placed in this space The receiver should be connected to the appliance before the batteries are installed Follow the procedure below Ia Connect the connecting cable of the receiver to the gas control block see Photo 14 15 ITip The plugs have different sizes that correspond with the connectors Ia Place the batteries as described below in section 7 1 2 Ia Place the receiver in its holder with the sensor to the front see Photo 15 Caution Do not place the ignition cable over and or along metal parts this will weaken the spark 7 1 2 Placing replacing the batteries Follow the procedure below when placing replacing the batteries L4 Open the door mp Pick up the receiver d Slide the cover off Ina Place or remove the 4 penlite AA type batteries Caution Avoid a short circuit between the batteries and metal objects parts Observe the and poles of the batteries and the holder Use alkaline batteries a Slide back the cover IL Place thereceiver in the holder with the sensor to the front Caution Batteries are regarded as small chemical waste and may therefore not be disposed with the household rubb
21. pe as flue gas discharge This system can be installed through the wall or through the roof The concentric system can be supplied in the colour of the appliance The appliance is supplied with a wireless remote control that works on batteries 2 CE Declaration We hereby declare that the design and construction of DRU s atmospheric gas heating appliance comply with the essential requirements of the Gas Appliance Directive This declaration will lose its validity if adjustments are made to the appliance without prior written permission by DRU Product atmospheric gas heating appliance Type Trio Applicable EEC directives 90 396 EEC Applied harmonized standards NEN EN 613 NEN EN 613 A1 Internal measures by the company guarantee that appliances produced in series comply with the essential require ments of the prevailing EEC directives and the standards derived from them R Gelten Dru verwarming B V Postbus 1021 6920 BA Duiven Ratio 8 6921 RW Duiven www dru nl 3 Safety 3 1 General AA caution Carefully read this chapter on safety before you start performing installation or maintenance work gt gt Ma gt Mi gt gt 7 I gt gt gt Ma gt gt Please observe the general regulations and the precautions safety instructions in this manual 3 2 Regulations Please install the appliance in accordance with the applicable national local and constructional installation regu
22. ssure used at the location 6 3 Gas connection Place a gas tap in the gas connection close to the appliance Caution Avoid dirt in the gas pipe and in the connections The following requirements apply to the gas connection use a gas pipe with the correct dimensions so that no pressure loss can occur the gas tap should have the CE marking you should always be able to reach the gas tap 6 4 Placement of the appliance Place the appliance as follows Caution Always place the appliance and or the discharge pipes at a minimum distance of 500 mm from com bustible objects or materials Donot make any changes to the appliance IL Determine the location of the appliance the dimen sions can be found in Fig 1 gt Provide a gas connection at the location For details see section 6 3 gt Make a duct for the flue gas discharge combustion air supply system with the following diameters For details see section 6 5 160 mm for a wall duct through incombustible material 250 mm for a wall duct through combustible material 160 mm for a roof duct through incombustible material 250 mm for a roof duct through combustible material 38c 1218 TRIO INSTRUCTION FOR INSTALLATION In Caution ITip In Caution IC
23. ver plate by unscrewing the 2 parkers see Photo 1 Place a lacquered pipe piece on the appliance Apply a lacquered clip binding with silicon sealing ring onto the connection between appliance and pipe piece Refit the cover plate with the 2 parkers Place the top plate carefully onto the appliance so that the lacquered pipe piece will not be damaged If necessary connect the vertical lacquered concen tric pipe pieces Connect the lacquered bend If necessary connect the horizontal lacquered con centric pipe pieces On each connection apply a lacquered clip binding with silicon sealing ring Use a parker to fix the clip binding to the pipe on lo 38c 744g cations that are unreachable after installation 40mm min English English TRIO INSTRUCTION FOR INSTALLATION gt gt gt Caution Ma Ila gt Ila gt gt Apply sufficient clamps so that the weight of the pipes does not only rest on the appliance Determine the remaining length of the wall duct Make sure the wall duct has the right dimensions Make sure that the right insertion length is maintained Place the wall duct with the groove folded seam at the top Make sure the horizontal concentric pipe pieces are sloping towards the wall duct in order to prevent rain water from entering Mount the rosette mounting inner plate if necessary
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