User Manual
Contents
1. n N 26_02_02_0764 C26_02_02_0767 C26_02_02_0830 C26_02_02_0770 C26_02_02_0765 C26_02_02_0771 23 For users and contractors 24 1 2 Thank you for purchasing this instantaneous water heater from AEG Haustechnik You have chosen a high grade device made in Germany Even during the development and manufacture AEG Haustechnik recognises the high value of manufacturing processes that are environmentally responsible and treat resources with care Thanks to many product innovations devices made by AEG Haustechnik are amongst the most energy efficient in their class Operating instructions Equipment description The instantaneous water heater DDLE LCD heats water as it flows through the equipment You can adjust the DHW outlet temperature anywhere between approx 30 C and approx 60 C via a temperature selector From a flow rate of approx 3 I min onwards the control unit regulates the correct heating output subject to the temperature selection and the cold water temperature Vital facts in brief e Temperature selector with LCD Turning the rotary selector enables the variable selection of the required temperature that is then displayed by the LCD e Recommendation for energy conscious operation y2. yellow illuminates when the equipment is heating water green flashing equipment is supplied with mains power ali D zu a A LL d Mall il EB E Eguipment handover Explain the eguipment function to the user and familiarise the user with its operation Important information e Make the user aware of possible dangers scalding e Hand over these instructions to the user for safe keeping C26 02 02 0834 29 For contractors 30 4 4 1 4 2 4 3 4 4 4 5 4 6 Alternative installation methods for contractors Power supply Unfinished walls below maximum demand relay undersink installation water connections top water finished walls Alternative installation methods are shown in figures J 0 Power supply unfinished walls below k a Push the cable grommet over the power cable b Break out the cable grommet knock out in the back panel c Move the terminal strip from the top to the bottom for this undo the screw and refit it into the terminal strip moved to the bottom d Slide the back panel over the studs and the cable grommet pull the cable grommet with a pair of pliers against the locking hooks and let both hooks audibly click into place e Push the back panel firmly and flush against the wall and lock with the fixing toggle Power supply finished walls e Cut break a hole into the back panel suitable for the power
3. 1000 Brussel Bruxelles Tel 02 4222534 Fax 02 4222521 Czech Republic AEG Home Comfort K H j m 946 15500 Praha 5 Stodulky Tel 2251 11 61 11 Fax 2 51116153 Hungary Stiebel Eltron KFT Pacsirtamezo u 41 1036 Budapest Tel 01 2506055 Fax 01 3688097 Nederland Stiebel Eltron Nederland b v Divisie AEG Home Comfort Daviottenweg 36 Postbus 2020 5222 BH s Hertogenbosch Tel 073 6230000 Fax 073 6231141 Polska AEG Oddzial Stiebel Eltron Polska Sp Z 0 0 Ul Instalator w 9 02 237 Warszawa Tel 022 8464820 Fax 022 8466703 Russia OOO EHT Haustechnik LLC 125190 Russia Moscow Baltijskaya str 15 Tel 7 495 788 9168 Fax 7 495 788 9168 Switzerland EHT Haustechnik AG Industriestrasse 10 5506 Magenwill Tel 062 8899214 Fax 062 8899126 Sous reserve d erreurs et de modifications techniques Onder voorbehoud van vergissingen en technische wijzigingen Correzioni riservati Salvo error o modificaci n t cnica Ratt till misstag och tekniska ndringar f rbeh lls Excepto erro ou altera o t cnica Zastrze one zmiany techniczne i ewentualne b dy Omyly a technick zm ny jsou vyhrazeny A muszaki v ltoztat sok s t ved sek jog t fenntartjuk 0817 BO3MOXKHOCTb HETOUHOCTEM M TEXHMUECKUX VW3MEHEHUM He WUCKIIHOUAETCA 281475 34950 0844
4. 222392 222394 222395 Rated output kW 18 18 21 24 27 Rated current A 26 0 28 5 30 3 34 6 39 Fuses A 25 32 32 35 40 Selectable output no yes yes yes no Pressure drop with DMB MPa bar I min 0 08 0 8 5 2 10 08 0 8 5 2 0 1 1 0 6 0 0 13 1 3 6 9 0 16 1 6 7 7 without DMB MPa bar I min 0 06 0 6 5 2 10 06 0 6 5 2 0 08 0 8 6 0 0 10 1 0 6 9 0 12 1 2 7 7 Throughput limit DMB l min 8 0 8 0 8 0 9 0 9 0 Colour white white white orange orange Nominal capacitv 0 4 Type Rated operating pressure Weight Protection class to EN 60335 Protection level to EN 60529 Test symbols Water connection Power supply Bare wire heating system Cold water inlet temperature Applications Throughput ON Table 3 Application areas sealed unvented PO 3 6kg 1 IP 25 see type plate G 12 male thread 3 PE 400 V 50 Hz see application areas max 60 C water with low limescale levels and those with limescale content gt 2 5 min Specific electrical resistance and specific electrical conductivity the water Details as Resistance Qcm Conductivitv mS m Conductivitv uS cm application ranges for different reference temperatures standard details at 15 C at 20 C at 25 C gt 900 gt 800 gt 735 S lt 125 lt 136 lt lt 1250 lt 1360 Application range with preheated water If you are operating this appliance with preheated water gt 25 C the water re
5. 40 C for basins showers baths 55 C for sinks Should the outlet temperature fail to reach the required level when the tap is fully opened and the temperature selector has been set to maximum temperature selector turned fully clockwise then more water flows through the equipment than can be heated by the internal heater cartridge output limit 18 21 24 or 27 kW In such cases reduce the flow rate at the tap accordingly e Temperature limit A contractor can set the temperature limit to 43 C at the device You can still adjust the temperature selector across its entire range The outlet temperature will be permanently limited to 43 C A temperature range between 30 C to 43 C can be selected Safety information There is a risk of scalding at outlet temperatures in excess of 43 C Where children or persons with limited physical sensory or mental capabilities are to be allowed to control this equipment ensure that this will only happen under supervision or after appropriate instructions by a person responsible for their safety Children should be supervised to ensure that they do not play with the equipment risk of scalding Important information If the water supply to the instantaneous water heater has been interrupted e g because of a risk of frost or work on the water system take the following measures prior to taking the equipment back into use 1 Remove fuses or trip the appropriate MCBs 2 Open a tap do
6. Gutenstetter StraBe 10 90449 Nurnberg info Qeht haustechnik de www aeg haustechnik de Tel 01803 911323 Fax 0911 9656 444 Kundendienstzentrale Holzminden F rstenberger Str 77 37603 Holzminden Briefanschrift 37601 Holzminden Der Kundendienst und Ersatzteilverkauf ist in der Zeit von Montag bis Donnerstag von 7 15 bis 18 00 Uhr und Freitag von 7 15 bis 17 00 Uhr auch unter den nachfolgenden Telefon bzw Telefaxnummern erreichbar Kundendienst Tel 01803 702020 Fax 01803 702025 Ersatzteilverkauf Tel 01803 702040 Fax 01803 702045 info eht haustechnik de www aeg haustechnik de EHT Haustechnik Irrtum und technische nderungen vorbehalten Subject to errors and technical changes Deutschland AEG Kundendienst Dortmund Oespel Indupark Brennaborstr 19 44149 Dortmund Postfach 76 02 47 44064 Dortmund Tel 0231 965022 11 Fax 0231 965022 77 Hamburg Georg Heyken Str 4a 21147 Hamburg Tel 040 752018 11 Fax 040 752018 77 Holzminden Furstenberger Str 77 37603 Holzminden Tel 01803 702020 Fax 01803 702025 Leipzig Airport Gewerbepark Glesien Ikarusstr 10 04435 Schkeuditz Tel 034207 755 11 Fax 034207 755 77 Stuttgart Weilimdorf Motorstr 39 70499 Stuttgart Tel 0711 98867 11 Fax 0711 98867 77 International Austria Stiebel Eltron Ges m b H Eferdinger Str 73 4600 Wels Tel 07242 47367 0 Fax 07242 47367 42 Belgium EHT Belgium BVBA Avenue du Port 104
7. cable for possible knock outs see J e With power supply on finished walls the protection rating is reduced to IP 24 splash proof Please note Mark the type plate with a permanent marker Cross out IP 25 and tick the IP 24 box Priority control L When used in conjunction with other electrical equipment e g electric storage heaters use the maximum demand relav a Maximum demand relay see 8 Special accessories b Control cable to the contactor of the second device e g electric storage heater c Control contact opens when switching the instantaneous water heater on The relav trips as soon as the instantaneous water heater starts Only connect the automatic maximum demand controller to the central phase of the equipment terminals mains power Undersink installation water connections from the top Undersink installation with water connections from the top can be achieved with the additional pipe assembly for undersink devices part no 18 44 21 Cleanly break out the water pipe knock outs in the back panel and fit the pipe set Temperature limit If the maximum temperature is to be limited to 43 C this is done on the inside of the device cap For this change the switch from 60 C to 43 C You can still adjust the temperature selector across its entire range The outlet temperature will be permanently limited to 43 C A temperature range between 30 C to 43 C can be selected T
8. checking the electrical safety must only be carried out by a qualified contractor A damp cloth is sufficient for cleaning the casing Do not use abrasive or corrosive cleaning agents Operating and installation instructions Keep these instructions safely and pass them on to any new user should the equipment change hands Let your contractor check their content in conjunction with any maintenance or repair work 25 For contractors 26 2 2 1 2 2 2 4 Installation instructions Only trained and authorised experts must install the device and make the electrical connection under full observance of these installation instructions Equipment layout A o 6 Top back panel O m the DDLE LCD 18 21 24 LED diagnostic traffic light for operating and fault indications selector cable button 13 Mains terminal 13 Knock out for power connection from above Fixing toggle 15 Outlet sensor 16 High limit safety cut out STB with reset button Heating system Brief description 25 Hat packing 26 Screws rawl plugs for fixing the back panel in case of water connection on finished walls Flow limiter only for theDDLE LCD 18 21 24 secured to the cold water pipe Support panel Installation and operating instructions This electronically regulated instantaneous water heater is a pressure device for the heating of cold water to DIN 1988 EN 806 that can supply one or several draw off points Th
9. regarding the DDLE LCD 18 21 24 with connected load changeover In its delivered condition the device is set to 21 kW When changing to a different output carry out the following steps e Re plug the coding card Re plug the coding card A 8 according to the selected output for selectable output and fuse protection see Specification Mark the connected load on the type plate A 20 with a permanent marker e Replace the flow limiter If 24 kW connected load has been selected replace the fitted flow limiter O 31 white with the flow limiter supplied orange fixed to the cold water pipe Installation site Install the instantaneous water heater according to the figure C a oversink or b undersink vertically flush with the wall and in a room free from the risk of frost Preparing the device installation e Open the device D a Disengage the locking device with a screwdriver b Open and remove the device cap e Remove the lower part of the back panel E a Push in both locking hooks b Remove the lower part of the back panel towards the front e Break out the cable grommet knock out in the back panel F a If the wrong knock out has been opened by mistake a new back panel must be used e Trim the power cable to size F b e Remove the protective transport plugs from the water connections mitung the mounting bracket 6 Mark out the holes to be drilled using the installation template supplied existing suitable AEG mou
10. AEG HAUSTECHNIK DDLE LCD 18 DDLE LCD 18 21 24 DDLE LCD 27 Elektronisch geregelter Durchlauferhitzer Gebrauchs und Montageanweisung Electronicallv controlled instantaneous water heater Operating and installation instructions Elektronicky regulovan pr tokov oh va N vod k pou v n a mont i Elektronicznie regulowany przeptywowy ogrzewacz wody Instrukcja obstugi i monta u IDOTOUHbIA BOOOHArpeBaTENb C INEKTDOHHOM perynupoBKOM OocnyxuBanue M VCTAHOBKA AUS ERFAHRUNG GUT Jl bard a C26_02_02_0831 C26_02_02_0763 21 C26_02_02_0766 A ji ZZL SS miri ASK S S E ii 4 N eza Y C26_02_02_0753 m o Idi CH C26_02_02_0760 3 PE 400 V C26_02_02_0752 26_02_02_0526 22
11. Test the heating system resistor A 17 and replace if required Test the electronics PCB A 7 and replace if required Reduce the temperature of the cold water supply to the device Test the electronics PCB A 7 and replace if required Push on outlet sensor lead check and replace sensor lead if required Test outlet sensor and replace if required 33 For contractors 34 8 Special accessories Direct tap instantaneous water heaters ADEo 70 WD mono lever mixer tap with changeover bath hand shower Part no 183934 Installation accessories Pipe assembly undersink installation UT 104 Part no 184421 Water connections with 12 mm compression fittings Universal mounting frame Part no 227701 Comprising Mounting frame with electrical wiring This assembly creates a gap of 30 mm between the device back panel and the installation wall This enables the electrical connection to be routed over unfinished walls at anv point behind the equipment This increases the equipment depth by 30 mm This set reduces the protection to IP 24 splash proof Offset installation set for unfinished walls Part no 227702 Comprising Universal mounting frame for specification see part no 227701 Pipe bends for a vertical offset of the device relative to the water connection by 90 mm downwards Pipe assembly replacement of a gas fired water heater Part no 227703 Comprising Uni
12. aps for finished walls AEG Haustechnik pressure tested tap for finished walls ADEo 70 WD N part no 183934 e Fit plug G 2 with gaskets a part of the standard delivery of the pressure tested tap ADEo 70 WD e Fit the tap e Insert the support plate into the lower part of the back panel The support plate is part of the standard delivery of the tap and is designed to hold the tap pipes in the designated location as well as to ensure the necessary protection against moisture M 32 Push the tap pipes from above through the support plate up to the lower part of the back panel e Push the open end of the pipes into the valve e Click the lower part of the back panel together with the support panel and the pipes into the upper part of the back panel e Secure the connection pipes on the device The device cap needs to the prepared tor this installation Cleanly break out the knock outs in the device cap M a use a file if necessary Device fixing Secure the back panel in the lower part of the device with two additional screws M 26 5 2 Cap installation For contractors Hook the device cap at the top and pivot it down onto the back panel then make it audibly click into place Check the firm seat of the device cap on the back panel Specification and application areas for contractors Specification The details on the type plate apply Type DDLE LCD 18 JDDLE LCD 18 21 24 DDLE LCD 27 with selectable output Part no
13. contain important information regarding safety operation installation and maintenance of this equipment Instructions and regulations e The installation water and electrical work and commissioning as well as the maintenance of this equipment must only be carried out by a qualified contractor in accordance with these instructions e Perfect function and safe operation can only be assured when using original accessories and spare parts intended for this equipment e Observe all locally applicable instructions and regulations regarding water and electrical connections such For contractors as DIN VDE 0100 DIN 1988 EN 806 DIN 4109 DIN 44851 Observe all regulations of your local water and electricity supply companies Observe the type plate A 20 See 5 1 Specification The specific electrical resistant of the water used must not fall below that stated on the type plate In a linked water network observe the lowest electrical water resistance see 5 2 Application areas Your water supply company will advise you of the specific electrical water resistance or conductivitv Install the device only in an enclosed room free from the risk of frost Store the dismantled device in a room free from the risk of frost as water residues remain inside the device The protection IP 25 hoseproof can only be ensured with a correctly fitted cable grommet Water installation Cold water line material Steel copper or plastic
14. e bare wire heating system is suitable for hard and soft water areas for application range see 5 2 Application areas Important information e Air in the cold water supply can destroy the bare wire heating system inside the equipment or can trip the safety system If the water supply to the instantaneous water heater has been interrupted g because of a risk of frost or work on the water system take the following measures prior to taking the equipment back into use 1 Remove fuses or trip the appropriate MCBs 2 Open and close a tap downstream of the equipment several times until all air has been vented from the cold water supply line upstream and the equipment 3 Replace the fuses or reset the relevant MCBs The instantaneous water heater is equipped with an air detector which to the greatest extent prevents damage to the heating system If during operation air is drawn into the instantaneous water heater the equipment shuts down the heating load for one minute thereby protecting the equipment e aps Direct draw off tap for instantaneous water heater ADEo 70 WD mono lever mixer with changeover bath hand shower part no 183934 The installation may be carried out using commercially available pressure tested taps For thermostatic pressure tested valves see information 1 6 Recommended adjustment e Always carefully observe all information in these operating and installation instructions These
15. nting bracket can be used e Secure the mounting bracket with 2 screws and rawl plugs not part of the standard delivery select in accordance with the material of the fixing wall e Insert the studs supplied into the mounting bracket Equipment installation G e Seal in and insert the twin nipples e Push the cable grommet 4 over the power cable e Slide the back panel over the studs and the cable grommet pull the cable grommet with a pair of pliers against the locking hooks and let both hooks audibly click into place e Push the back panel firmly and flush against the wall and lock with the fixing toggle 11 At the bottom the device can be secure with 2 additional screws M 26 Water connection H e Position the threaded connections with flat packing onto the twin nipples for this observe the correct seating of the connections never twist the bavonet closures inside the device Important information e Thoroughly flush the cold water supply line e If the correct function cannot be assured due to inadequate flow pressure e g lt 0 2 MPa lt 2 bar replace the flow limiter O 31 and reinsert the profile washer O 32 If necessary increase the pressure in the water installation 3 7 3 8 3 9 For contractors e Never replace the pressure limiter when using a thermostatic valve e Never use the shut off valve in the cold water supply 24 to reduce the flow rate Power supply e Connect the power cable
16. onstant red illumination Table 6 o e o E i illuminates in case of faults flashing the device is supplied with power Cause Shower head perlators scaled up Contamination One phase down The air sensor detects the presence of air in water and briefly switches the heater off Fuse MCB blown tripped Safety pressure limiter AP 3 has tripped Faulty electronics Faulty electronics Flow sensor DFE not plugged in Flow sensor DFE faulty High limit safety cut out triggered or cable break Heating system faulty Faulty electronics Cold water inlet temperature gt 45 C Cold water sensor faulty Outlet sensor pulled or lead broken Outlet sensor faulty short circuit For contractors illuminates when the equipment is heating water Remedy Descale and replace if required Clean sieve H 30 Check fuse MCB fuse box Device starts again after one minute Check fuse MCB fuse box Remove cause of fault e g faulty pressure washer Open downstream tap for 1 minute This depressurises and cools down the heating system protecting it against overheating Press the pushbutton on the safetv pressure limiter push A 11 Test the electronics PCB A 7 and replace if required Test the electronics PCB A 7 and replace if required Refit the plug of the electronics PCB Check and replace the flow switch if required Check high limit safety cut out and replace if required
17. pipework DHW line material Copper or plastic pipework The instantaneous water heater can reach operating temperatures up to 60 C In case of faults loads up to 95 C 1 2 MPa can occur temporarily in the installation Any plastic pipework used must be suitable for these conditions A safety valve is not required Never use taps valves for open vented equipment For thermostatic valves see 1 6 Recommended adjustment BA The maximum permitted inlet temperature is 60 C The equipment may be damaged at higher temperatures The maximum inlet temperature can be limited to 60 C with the central thermostat special accessory see Special accessories Electrical installation Use only permanently wired power cables The equipment must be able to be separated from the mains power supply for example by fuses that disconnect all poles with at least 3 mm contact separation 27 For contractors 28 3 3 1 3 2 3 3 3 4 3 5 3 6 Standard Installation for contractors Power Unfinished walls top Water Unfinished walls General installation information At the factory the device is prepared for a power connection from the top from an installation below the plaster see Fig C 1 e The device is suitable for above or undersink installation C e Water connection threaded fittings below the plaster e Power connection below the plaster in the upper device area Important information
18. sistance at p 15 C must be gt 1200 Qcm 31 For users 32 6 Trou bleshooting bv the user Fault The heating svstem inside the instantaneous water heater will not start in spite of the tap being fullv open Intermittent cold water Table 5 Cause Remedv No voltage User contractor Check the fuses in your fuse board The start up volume required to start the User contractor heater has NOt been reached Clean and or descale Contamination or scaling of perlators in water taps or shower heads Heating system faulty Call service contractor Test heater and replace if required The air sensor detects the presence of air Device starts again after one minute in water and briefly switches the heater off Z Troubleshooti NO by the contractor Display options LED diagnostic traffic lights O Red O Yellow O Green Fault Diagnostic traffic light display Flow rate too low Set temperature is not achieved Heater does not switch on no hot water No hot water No traffic light display No hot water flow rate gt 3 I min Traffic light display green flashing or constantly ON No hot water flow rate gt 3 I min Traffic light display constant yellow illumination green flashing No hot water Traffic light displav constant red illumination green flashing Inaccurate temperature control No traffic light displav No hot water Traffic light displav c
19. to the terminal strip see wiring diagram I SIB High limit safety cut out AP3 Safety pressure limiter Important information e The protection level IP 25 hoseproof is only assured if the cable grommet is fitted correctly G gy K and if the cable sheath is sealed correctly e Connect the equipment to earth e For supply cables gt 6 mm2 increase the hole in the cable grommet Completing the installation Click the lower part of the back panel E 3 into place Commissioning only by a qualified contractor Fill and vent the equipment Please note Boil drv risk Open and close all connected taps several times until all air has been vented from the pipework and the equipment Air see 2 3 Important information Activate the safety pressure limiter AP 3 The instantaneous water heater is delivered with the safety pressure limiter triggered press the reset button Push the temperature selector cable plug onto the electronic PCB Fit and audibly let the device cap click into place Check the firm seat of the device cap on the back panel Switch on the mains power Turn the temperature selector as far as possible clockwise and anti clockwise which calibrates the temperature Check the instantaneous water heater function Optional displays of the traffic light indicators A 9 see also 7 Troubleshooting O red illuminates in case of faults 00
20. versal mounting frame for specification see part no 227701 Pipe bends for the installation with existing gas water heater connections cold water on the left and DHW on the right Automatic maximum demand controller LR 1 A Part no 001786 Priority control of the instantaneous water heater when operating for example electric storage heaters simultaneously For connection of the LR 1 A see L Accessories for operation of a DDLE LCD with pre heated water ZTA 3 4 central thermostatic valve Part no 073864 By adding cold water via a bypass pipe the central thermostatic valve installed immediately above the storage water cylinder guarantees that the outlet Customer service and warranty 9 Customer service and warranty Guarantee For guarantees please refer to the respective terms and conditions of supply for your country A The installation electrical connection and first operation of this appliance should be carried out by a qualified installer The company does not accept liability for failure of any goods supplied which have not been installed and operated inaccordance with the manufacturer s instructions Environment and recycling Recycling of obselete appliances R Appliances with this label must not be disposed off with the general waste They must be collected separately and disposed off according to local regulations 35 Adressen und Kontakte Vertriebszentrale EHT Haustechnik GmbH Markenvertrieb AEG
21. wnstream of the equipment long enough until all air has been vented from the equipment and its cold water supply pipe 3 Replace the fuses or reset the relevant MCBs 1 5 For users and contractors DHW output Subject to season the following maximum mixed water or draw off capacities result for different cold water temperatures see Table 1 I Cold water inlet temperature 3 Mixed water temperature 3 Outlet temperature Available temperature g for Showering washing hands filling a bath etc Kitchen sink and when using thermostatic valves 9 38 C min O 9 60 C min O 9 I min 1 eec 80 94 107 121 10 C 52 60 69 77 Table 1 Table values relative to a rated voltage of 400 V The outlet volume is subject to the available supply pressure and the available mains voltage I min 6 C Recommended settings when using a thermostatic valve To safeguard the function of the thermostatic valves set the instantaneous water heater to its maximum temperature temperature selector to the right end stop First aid in case of faults e Check all fuses e Check taps valves and shower heads for scaling or contamination see also 6 Troubleshooting Where a contractor is required they can better and more speedily remedy the fault if you provide them with some of the details from the type plate A 20 No 11 1 Lad Maintenance and care Maintenance work e g
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