DDLE LCD 21 - Chauffage AEG - Free user manual and instructions

USER MANUAL DDLE LCD 21 AEG

5. Cleaning, care and maintenance .............................20

SPECIAL INFORMATION - The appliance may be used by children aged 8 and up and persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how, provided that they are supervised or they have been instructed on how to use the appliance safe- ly and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user maintenance unless they are supervised. - Risk of scalding: The tap can reach temper- atures in excess of 60 °C. - Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3 mm contact separation. - Secure the appliance as described in chap- ter “Installation / Installation”. - Observe the maximum permissible pres- sure (see chapter “Specication / Data table”). - Drain the appliance as described in chapter “Installation / Maintenance / Draining the appliance”.19 Operation - for users and qualied contractors OPERATION

1. General information

The chapters “Special Information” and “Operation” are intended for both the user and qualied contractors.The chapter “Installation” is intended for qualied con-tractors. Note Read these instructions carefully before using the appliance and retain them for future reference.Pass on the instructions to a new user if required.1.1 Safety instructions1.1.1 Structure of safety instructions

KEYWORD Type of riskHere, possible consequences are listed that may re-sult from failure to observe the safety instructions. » Steps to prevent the risk are listed.1.1.2 Symbols, type of riskSymbol Type of risk

Burns(burns, scalding) 1.1.3 KeywordsKEYWORD MeaningDANGER Failure to observe this information will result in seri-ous injury or death.WARNING Failure to observe this information may result in seri-ous injury or death.CAUTION Failure to observe this information may result in non-serious or minor injury.1.2 Other symbols in this documentation Note General information is identified by the symbol shown on the left. » Read these texts carefully.Symbol Meaning

Material losses(appliance damage, consequential losses and envi-ronmental pollution)

Appliance disposal » This symbol indicates that you have to do something. The action you need to take is described step by step.1.3 Units of measurement Note All measurements are given in mm unless stated otherwise.

2.1 Intended useThis appliance is intended for domestic use. It can be used safely by untrained persons. The appliance can also be used in a non-domestic environment, e.g. in a small business, as long as it is used in the same way.This pressurised appliance is suitable for heating domes-tic hot water or for reheating preheated water. The appli-ance can supply one or more draw-off points.Any other use beyond that described shall be deemed inappropriate. Observation of these instructions and of instructions for any accessories used is also part of the correct use of this appliance.2.2 General safety instructions CAUTION BurnsDuring operation, the tap can reach temperatures in excess of 60 °C.There is a risk of scalding at outlet temperatures in excess of 43 °C. CAUTION BurnsIf operating with preheated water, e.g. from a solar thermal system, the DHW temperature may vary from the selected set temperature.

WARNING InjuryThe appliance may be used by children aged 8 and up and persons with reduced physical, sensory or mental capabilities or a lack of experience and know-how, provided that they are supervised or they have been instructed on how to use the appliance safely and have understood the resulting risks. Children must never play with the appliance. Children must never clean the appliance or perform user mainte-nance unless they are supervised.Where children or persons with limited physical, sensory or mental abilities are allowed to use this appliance, we recommend a permanent temperature limit. A qualied contractor can set the limit for you.

Material lossesProtect the appliance and its tap against frost.2.3 CE designationThe CE designation shows that the appliance meets all essential requirements according to the:

• Low Voltage Directive

• Electromagnetic Compatibility Directive The maximum permissible mains impedance is indi-cated in chapter “Specication”.

!20 Operation - for users and qualied contractors

2.4 Test symbolsSee type plate on the appliance.Country-specic approvals and certications: Germany

A general test certicate as verification of suitability regard- ing noise emissions has been issued for this appliance, based on the State Building Regulations [Germany]. AEG HOL DIN 4109 PA-IX 6814/I

3. Appliance description

The electronically controlled instantaneous water heater with automatic output matching keeps the outlet temper-ature constant up to the output limit. The temperature is then selected via the draw-off tap.Heating systemThe bare wire heating system has a pressure-tested plas-tic casing. The heating system is suitable for hard and soft water areas; it has low susceptibility to scale build-up. This system ensures rapid and efcient DHW availability. Note The appliance is equipped with an air detector that largely prevents damage to the heating system. If, during operation, air is drawn into the appliance, the appliance shuts down for one minute, thereby protecting the heating system.

The DHW outlet temperature can be variably adjusted. The selected temperature is displayed. At temperatures over 43 °C, the colour of the display changes from blue to red to indicate a risk of scalding.D0000041982 » Turn the temperature selector to the required temperature. Note If the outlet temperature is not sufciently high when the draw-off valve is fully open and the temperature selector is set to maximum, then more water is ow-ing through the appliance than can be heated by the heating system (appliance is at its output limit). » Reduce the water volume at the draw-off valve.Recommended setting for operation with a thermostatic valveSet the temperature at the appliance to the maximum temperature.Following an interruption of the water supply

Material lossesFollowing an interruption of the water supply the ap-pliance must be recommissioned by carrying out the following steps, in order to prevent the destruction of the bare wire heating system. » Disconnect the appliance from the power sup-ply by removing the fuses/tripping the MCBs. » Open the tap for one minute until the appliance and its upstream cold water inlet line are free of air. » Switch the mains power back ON again.

5. Cleaning, care and

maintenance » Never use abrasive or corrosive cleaning agents. A damp cloth is sufcient for cleaning the appliance. » Check the taps regularly. Limescale deposits at the spouts can be removed using commercially available descaling agents.

Problem Cause RemedyThe appliance will not start despite the DHW valve being fully open.There is no power. Check the fuses/MCBs in your fuse box/distribution panel.

The flow rate is too low. The aerator in the tap or the shower head is scaled up or contaminated.Clean and/or descale the aerator or shower head. Required tempera-ture > 45 °C is not achieved. The water supply has been interrupted. Vent the appliance and the cold water inlet line (see chapter “Settings”). The cold water inlet temperature is > 45 °C.Reduce the cold water inlet temperature.If you cannot remedy the fault, notify your qualied contractor. To facilitate and speed up your enquiry, please provide the serial number from the type plate (000000-0000-00000): Nr.: 000000-0000-00000 D000004161421 Installation - for qualied contractors INSTALLATION

Only a qualied contractor should carry out installation, commissioning, maintenance and repair of the appliance.7.1 General safety instructionsWe guarantee trouble-free function and operational relia-bility only if original accessories and spare parts intended for the appliance are used.

Material lossesObserve the maximum inlet temperature. Higher temperatures may damage the appliance. You can limit the maximum inlet temperature by installing a central thermostatic valve.7.2 Instructions, standards and regulations Note Observe all applicable national and regional regula-tions and instructions. ◦ The protection rating IP 25 (hoseproof) can only be ensured with a correctly tted cable grommet. ◦ The specic electrical resistance of the water must not fall below that stated on the type plate. In a linked water network, observe the lowest electrical water resistance (see chapter “Specication / Application areas / Conversion table”). Your water supply utility will advise you of the specic electrical water resist-ance or conductivity.

8. Appliance description

8.1 Standard deliveryThe following are delivered with the appliance: ◦ Wall mounting bracket ◦ Threaded studs, screws and rawl plugs for the wall mounting bracket ◦ Installation template ◦ 2 twin connectors (cold water with shut-off valve) ◦ Flat gaskets ◦ Cable grommet (power cable from above/below) ◦ Screws/rawl plugs for xing the back panel in the case of water connection on nished walls8.2 Accessories Tap ADEo 70 WD bath pressure tapInstallation accessoriesPipe assembly, undersink installation UT 104, connec- tions: Finished walls, G 3/8, top. Water connections with 12 mm compression ttings.Universal mounting frameMounting frame with electrical connections.Pipe assembly for undersink appliancesThis assembly for undersink installation is required if you need to have the water connections (G ⅜ A) above the appliance.Pipe assembly for offset installationThis pipe assembly with pipe bends is required if you need to have the appliance vertically offset against the water connection by approx. 90 mm downwards.Pipe assembly for replacing a gas water heaterThis pipe assembly is required if the installation has exist-ing gas water heater connections (cold water connection on the left and DHW connection on the right).Load shedding relay (LR 1-A)The load shedding relay for installation in the distribution board provides priority control for the instantaneous water heater when other appliances, such as electric storage heaters, are simultaneously being operated.ZTA 3/4 - central thermostatic valveThermostatic valve for central premixing, for example for an instantaneous water heater with a solar thermal system.

9.1 Installation site

Material lossesInstall the appliance in a room free from the risk of frost. » Always install the appliance vertically near the draw-off point.The appliance is suitable for undersink and oversink in-stallations.Undersink installation26_02_02_1345121 Cold water inlet2 DHW outletOversink installation1226_02_02_13441 Cold water inlet2 DHW outlet Note » Mount the appliance on the wall. The wall must have a sufcient load-bearing capacity.22 Installation - for qualied contractors

9.2 Water installation

• A safety valve is not required. » Flush the water line thoroughly. » Ensure that the ow rate (see chapter “Specication / Data table”, On) for switching on the appliance is achieved. If the ow rate is not achieved, remove the ow limiter (see chapter “Installation / Removing the ow limiter”). » Increase the mains water pressure if the required ow rate is not achieved with the draw-off valve fully opened. Taps Use appropriate pressure taps. Open taps are not per-mitted. Note Never use the shut-off valve in the cold water inlet to reduce the ow rate. It is intended to shut off the appliance.Permissible water pipe materials ◦ Cold water inlet pipe: Galvanised steel pipe, stainless steel pipe, copper pipe or plastic pipe ◦ DHW outlet pipe: Stainless steel pipe, copper pipe or plastic pipe

Material lossesIf plastic pipework systems are used, take into ac-count the maximum inlet temperature and the max-imum pressure (see chapter “Specication / Data table”).Flexible water connection lines » If the appliance is installed with exible water con-nection lines, ensure that the bayonet ttings of the pipe bends do not become twisted inside the appliance. » Secure the back panel at the bottom with two addi-tional screws.

10.1 Standard installation

• Electrical connection from above; installation on un- nished walls ◦ Water connection, installation on unnished walls ◦ DDLE LCD 18/21/24: Connected load 21 kW presetFor further installation options, see chapter “Installation alternatives”: ◦ Electrical connection from below on unnished walls ◦ Electrical connection for nished walls ◦ Connecting a load shedding relay ◦ Undersink installation, water connections – from above ◦ Water installation for nished walls ◦ Operation with preheated water ◦ Temperature limitOpening the applianceD0000041615 » Open the appliance by releasing the snap lock. NTT-so

26_02_02_0762 » Remove the back panel by pressing the two locking hooks and pulling the lower part of the back panel forwards.Preparing the power cable

≥ 30 26_02_02_0887Fitting the wall mounting bracket26_02_02_0972 » Mark out the holes for drilling with the installation template. If the appliance is to be installed with water connections on nished walls, also mark out the x-ing holes on the lower part of the template. » Drill the holes and secure the wall mounting bracket with 2 screws and 2 rawl plugs (screws and rawl plugs are part of the standard delivery). » Fit the threaded stud provided. » Mount the wall mounting bracket.23 Installation - for qualied contractors Fitting the cable grommet 26_02_02_0950 » Fit the cable grommet. In the case of a connect- ing cable > 6 mm², enlarge the hole in the cable grommet. Making the water connection

Material losses Carry out all water connection and installation work in accordance with regulations. 26_02_02_0948 » Seal and insert the twin connectors.

Material losses Never use the shut-off valve in the cold water inlet to reduce the ow rate. Preparing the back panel

Material losses If you break out the wrong knock-out by mistake, you should use a new back panel.

NT C T- soll X1 1 D0000041894 » Push the back panel over the threaded stud and the cable grommet. Pull the cable grommet by the lock- ing hooks into the back panel using pliers, until both locking hooks audibly click into place. » Remove the transport plugs from the water connections. » Press the back panel rmly into place and lock the xing toggle by turning it clockwise through 90°. D0000041925 » Screw the water connection pipes with at gaskets on to the twin connectors.

Material losses The strainer must be tted for the appliance to func- tion. » When replacing an appliance, check whether the strainer is installed (see chapter “Mainte- nance”). Removing/replacing the ow limiter Note If you use a thermostatic valve, the ow limiter must not be removed.24 Installation - for qualied contractors L1’

1 Plastic prole washer 2 Flow limiter » Remove the ow limiter and ret the plastic prole washer. DDLE LCD 18/21/24: Replacing the ow limiter » If 24 kW connected load has been selected, replace the tted ow limiter (white) with the ow limiter sup- plied (orange, xed to the cold water pipe). Making the electrical connection WARNING Electrocution Carry out all electrical connection and installation work in accordance with relevant regulations. WARNING Electrocution Connection to the power supply is only permissible in the form of a permanent connection in conjunc- tion with the removable cable grommet. Ensure the appliance can be separated from the power supply by an isolator that disconnects all poles with at least 3 mm contact separation. WARNING Electrocution Ensure that the appliance is earthed.

Material losses Observe the type plate. The specied voltage must match the mains voltage. » Connect the power cable to the mains terminal (see chapter “Specication / Wiring diagram”). DDLE LCD 18/21/24: Re-plugging the coding card In its delivered condition, the appliance is plugged to 21 kW. When changing to a different connected load, carry out the following steps: D0000047341 » Re-plug the coding card according to the selected connected load (for selectable connected load and fuse protection of the appliance, see “Specication / Data table”). » Tick the selected connected load on the type plate. Please use a ballpoint pen to do this. Fitting lower section of back panel

X11 26_02_02_1348 » Fit the lower part of the back panel into the back panel and click into place. » Align the mounted appliance by loosening the xing toggle, aligning the power supply and back panel, and then re-tightening the xing toggle. If the back panel of the appliance is not ush, the appliance can be secured at the bottom with two additional screws.

10.2 Alternative installation methods

10.2.1 Electrical connection from below on

Material losses If you break out the wrong knock-out by mistake, you should use a new back panel. » Break out the cable grommet knock-out in the back panel. Deburr the sharp edges with a le if necessary.25 Installation - for qualied contractors » Reposition the mains terminal in the appliance from the top to the bottom. » Push the back panel over the threaded stud and the cable grommet. Pull the cable grommet by the lock-ing hooks into the back panel using pliers, until both locking hooks audibly click into place. » Press the back panel rmly into place and lock the xing toggle by turning it clockwise through 90°.

10.2.2 Electrical connection for nished walls

Note This type of connection changes the protection rat-ing of the appliance. » Change the type plate. Cross out “IP 25” and mark the box “IP 24”. Please use a ballpoint pen to do this.

Material lossesIf you break out the wrong knock-out by mistake, you should use a new back panel. » Cut or break out the required entries in the back panel cleanly (for positions, see chapter “Speci-cation / Dimensions and connections”). Deburr the sharp edges with a le if necessary. » Route the power cable through the cable grommet and connect it to the mains terminal.

10.2.3 Connecting a load shedding relay

Install a load shedding relay in the distribution board in conjunction with other electric appliances, e.g. electric storage heaters. The relay responds when the instanta-neous water heater starts.

Material lossesConnect the phase that switches the load shedding relay to the indicated terminal of the mains terminal in the appliance (see chapter “Specication / Wiring diagram”).

10.2.4 Undersink installation, water connections –

from above An undersink installation with water connections from above can be achieved with the additional pipe assembly for undersink appliances. Cleanly break out the water pipe knock-outs in the back panel and t the pipe set.

10.2.5 Water installation for nished walls

Note This type of connection changes the protection rat-ing of the appliance. » Change the type plate. Cross out “IP 25” and mark the box “IP 24”. Please use a ballpoint pen to do this.26_02_02_0765 » Fit water plugs with gaskets to seal the connection on unnished walls. » Fit a suitable pressure tap.26_02_02_1006 » Click the lower part of the back panel into place in the upper part of the back panel. » Secure the connection pipes to the appliance. » Secure the back panel at the bottom with two addi-tional screws.

Material lossesIf you break out the wrong knock-out by mistake, you should use a new back panel. » Cleanly break out the knock-outs in the appli-ance cover. Deburr the sharp edges with a le if necessary. » Push the lower part of the back panel under the con-nection pipes of the tap and click the lower part of the back panel into place. » Secure the connection pipes to the appliance.

10.2.6 Operation with preheated water

You can limit the maximum inlet temperature by installing a central thermostatic valve.

10.2.7 Temperature limit

CAUTION BurnsIf operating with preheated water, the set tempera-ture limit and anti-scalding protection may be inef-fective. » In this case, limit the temperature with an up-stream central thermostatic valve. You can set the temperature limit inside the appliance cover to 43 °C.D0000041912 » Switch the temperature limit to 43 °C.After enabling the temperature limit, you can only select temperatures between 30 and 43 °C.

10.3 Completing the installation

» Open the shut-off valve in the twin connector or the cold water inlet line.26 Installation - for qualied contractors

WARNING ElectrocutionCommissioning may only be carried out by a qual-ied contractor in accordance with safety regula-tions.

11.1 Initial start-up

D0000041981 » Open and close all connected draw-off valves sever-al times, until all air has been vented from the pipe-work and the appliance. » Carry out a tightness check. » Enable the safety pressure limiter by rmly pressing the reset button (the appliance is delivered with the safety pressure limiter disabled). » Plug the temperature selector cable plug into the PCB. » Fit the appliance cover, ensuring it clicks into place. Check that the appliance cover is seated correctly. » Switch the mains power ON. » Check the function of the appliance. Appliance handover » Explain the appliance function to users and familiar-ise them with its operation. » Make users aware of potential dangers, especially the risk of scalding. » Hand over these instructions.

11.2 Recommissioning

Vent the appliance and the cold water inlet line (see chap-ter “Settings”).See chapter “Initial start-up”.

» Isolate all poles of the appliance from the power supply. » Drain the appliance (see chapter “Maintenance”).

WARNING ElectrocutionTo test the appliance, it must be supplied with power. Possible indications of diagnostic trafc light (LED) Red Illuminates in the event of a faultYellow Illuminates during heating modeGreen Flashing: Appliance is supplied with mains power D00000417941 Diagnostic trafc light27 Installation - for qualied contractors Fault / diagnostic traffic light LED displayCause Remedy Inadequate flow rate. The strainer in the appliance is dirty. Clean the strainer. The set temperature is not achieved. One phase down. Check the fuses/MCBs in your fuse box/distribution panel.The heater does not switch on. Air is detected in the water and heating output is briefly switched off.The appliance restarts after one minute. No hot water and no traffic light display. The MCB/fuse has responded/blown. Check the fuses/MCBs in your fuse box/distribution panel. The safety pressure limiter has tripped. Remove the cause of the fault (e.g. faulty pressure washer).

Protect the heating system against overheating by opening a draw-off valve downstream of the appli-ance for one minute. This depressurises and cools down the heating system.

Enable the safety pressure limiter at flow pressure by pressing the reset button (see chapter “Commis-sioning”). The PCB is faulty. Check the PCB and replace if required.Traffic light display: Green flashing or constantly ONThe PCB is faulty. Check the PCB and replace if required.No hot water at a flow rate of > 2.5 l/min.The flow meter DFE is not plugged in. Plug the flow meter plug back in. The flow meter plug is faulty. Check the flow meter and replace it if required.Traffic light display: Steady yellow light, flashing green light No hot water at flow rate > 2.5 l/min.The high limit safety cut-out has responded or its lead is broken. Check the high limit safety cut-out and replace it if required. The heating system is faulty. Check the heating system resistor, and replace it if required. The PCB is faulty. Check the PCB and replace if required.Traffic light display: Yellow constantly on; green flashingThe outlet sensor is unplugged or the lead is bro- ken. Plug in the outlet sensor or replace it if required.Traffic light display: Red constantly on; green flashingThe cold water sensor is faulty. Check the PCB and replace if required.No hot water Accurate temperature delivery > 45 °C is not reached. The cold water inlet temperature exceeds 45 °C. Reduce the cold water inlet temperature to the ap- pliance. Traffic light display: Red constantly on; green flashing The outlet sensor is faulty (short circuit). Check the outlet sensor and replace it if required.

WARNING Electrocution Before any work on the appliance, disconnect all poles from the power supply. Draining the appliance You can drain the appliance for maintenance work or to protect it from frost. WARNING Burns Hot water may escape when draining the appliance. » Close the shut-off valve in the twin connector or the cold water inlet line. » Open all draw-off valves. » Undo the water connections on the appliance. » Store the dismantled appliance in a room free from the risk of frost, as water residues remaining inside the appliance can freeze and cause damage. Cleaning the strainer 26_02_02_0949 If dirty, clean the strainer in the cold water threaded tting. Close the shut-off valve in the cold water inlet line before removing, cleaning and retting the strainer.28 Installation - for qualied contractors

15.1 Dimensions and connections

3/PE ~ 380-415 V 85_02_02_0005 1 Heater 2 High limit safety cut-out 3 Safety pressure limiter Load shedding relay LR 1-A 85_02_02_0003_

1 Control cable to the contactor of the second appli- ance (e.g. electric storage heater). 2 Control contact opens when switching the instanta- neous water heater on.

15.6 Fault conditions

In case of faults, loads up to a maximum of 95 °C at a pressure of 1.2 MPa can occur temporarily in the instal- lation.

15.7 Details on energy consumption

Product data complies with EU regulations relating to the Directive on the ecodesign of energy related products (ErP).

Manufacturer AEG Haustechnik AEG Haustechnik AEG Haustechnik Load profile S S S Energy efficiency category A A A Annual power consumption kWh 477 477 481 Energy conversion efficiency % 39 39 39 Default temperature setting °C 60 60 60 Sound power level dB(A) 15 15 15 Special information on measuring efficiency None Information at Pmax. None30 Installation - for qualied contractors GUARANTEE

≤ (at ϑcold ≤45°C) μS/cm 830 830 770 830 830 770 830 830 Max. mains impedance at 50 Hz Ω 0.379 0.360 0.347 0.284 0.270 0.260 0.254 0.241 Application limits Max. permissible pressure MPa 1 1 1 Max. inlet temperature for reheating °C 45 45 45 Values Max. permissible inlet temperature °C 65 65 65 On l/min >2.5 >2.5 >2.5 Flow rate limit at l/min 8 8 / 8 / 9 9 DHW delivery l/min 9.4 9.4/11.0/12.6 14.2 Δϑ on delivery K 26 26 26 Hydraulic data Nominal capacity l 0.4 0.4 0.4 Versions Temperature setting range °C 30-60 30-60 30-60 Heating system heat generator Bare wire Bare wire Bare wire Colour white white white IP rating IP25 IP25 IP25 Dimensions Height mm 485 485 485 Width mm 226 226 226 Depth mm 93 93 93 Weights Weight kg 3.6 3.6 3.6 Guarantee The warranty conditions of our German companies do not apply to appliances acquired outside of Germany. In countries where our subsidiaries sell our products, it is increasingly the case that warranties can only be issued by those subsidiaries. Such warranties are only granted if the subsidiary has issued its own terms of warranty. No other warranty will be granted. We shall not provide any warranty for appliances acquired in countries where we have no subsidiary to sell our products. This will not aect warranties issued by any importers. Environment and recycling We would ask you to help protect the environment. After use, dispose of the various materials in accordance with national regulations.31 Table des matières - remarques particulières