AEG DDLE LCD 27 User manual
DDLE LCD 18
DDLE LCD 18/21/24
DDLE LCD 27
Elektronisch geregelter Durchlauferhitzer
Gebrauchs- und Montageanweisung
Electronically controlled instantaneous water heater
Operating and installation instructions
Elektronicky regulovaný průtokový ohřívač
Návod k používání a montáži
Elektronicznie regulowany przepływowy
ogrzewacz wody
Instrukcja obsługi i montażu
Проточный водонагреватель с электронной
регулировкой
Обслуживание и установка
21
A
B
4 5 a
C26_02_02_0763
21
LLL
LLL
19
12
3
4
5
6
789
10
1
2
11
13
14
18
21
22
23
24
25
26
29
28
17
16
15
20 27
C26_02_02_0831
22
C D
E
G
H I
F
26_02_02_0526
WW KW
KW
WW
C26_02_02_0761
C26_02_02_0766
b
a b
a
b
b
3
6
a
b
4
21
22
14
4
30
5
24
C26_02_02_0753
C26_02_02_0762
a
C26_02_02_0760
C26_02_02_0752
a
23
J
LM
N
26_02_02_0764
ADEo 70 WD
18 Nm
C26_02_02_0765
C26_02_02_0767
O
24
b
a
c
a
a
32
31
C26_02_02_0771
b
d
e
d
c
LR 1-A
c
b
a
C26_02_02_0830
a
26
C26_02_02_0770
33
K
24
!
!
For users and contractors
1.1 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 l/min onwards, the control unit regulates the correct heating output, subject to the
temperature selection and the cold water temperature.
1.2 Vital facts in brief
s4EMPERATURESELECTORWITH,#$
Turning the rotary selector enables the variable selection of the required temperature that is then
displayed by the LCD.
s2ECOMMENDATIONFORENERGYCONSCIOUSOPERATION
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.
s4EMPERATURELIMIT
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.
1.3 Safety information
4HEREISARISKOFSCALDINGATOUTLETTEMPERATURESINEXCESSOFª#
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 RISKOFSCALDING
1.4 Important information
)FTHEWATERSUPPLYTOTHEINSTANTANEOUSWATERHEATERHASBEENINTERRUPTEDEGBECAUSEOFARISKOFFROST
ORWORKONTHEWATERSYSTEMTAKETHEFOLLOWINGMEASURESPRIORTOTAKINGTHEEQUIPMENTBACKINTOUSE
1. Remove fuses or trip the appropriate MCBs.
2. Open a tap downstream 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. Operating instructions
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.
25
1.5 DHW output
Subject to season, the following maximum mixed water or draw-off capacities result for different cold water
temperatures (see Table 1):
ϑ1= Cold water inlet temperature
ϑ2= Mixed water temperature
ϑ3= Outlet temperature.
!VAILABLETEMPERATUREEGFOR
Showering, washing hands, filling a bath, etc. Kitchen sink and when using thermostatic valves.
ϑ2 = 38 °C ϑ3 = 60 °C
kW 18 21 24 27 kW 18 21 24 27
ϑ1
l/min * ϑ1
l/min *
6 °C 8.0 9.4 10.7 12.1 6 °C 4.8 5.6 6.4 7.2
10 °C 9.2 10.7 12.3 13.8 10 °C 5.2 6.0 6.9 7.7
14 °C 10.7 12.5 14.5 16.1 14 °C 5.6 6.5 7.5 8.4
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.
1.6 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).
1.7 First aid in case of faults
s Check all fuses.
s 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( A20):
DDLE LCD . . No.: . . . . . . - . . . . -. . . . . .
1.8 Maintenance and care
-AINTENANCEWORKEGCHECKINGTHEELECTRICALSAFETYMUSTONLYBECARRIEDOUTBYAQUALIlEDCONTRACTOR
A damp cloth is sufficient for cleaning the casing. Do not use abrasive or corrosive cleaning agents.
1.9 Operating and installation instructions
+EEPTHESEINSTRUCTIONSSAFELYANDPASSTHEMONTOANYNEWUSERSHOULDTHEEQUIPMENTCHANGEHANDS
,ETYOURCONTRACTORCHECKTHEIRCONTENTINCONJUNCTIONWITHANYMAINTENANCEORREPAIRWORK
!
!
For users and contractors
26
!
Only trained and authorised experts must install the device and make the electrical connection under full
observance of these installation instructions.
2.1 Equipment layout
A- O
1 Temperature selector with LCD 18 Flow sensor
2 Device cap 19 Temperature selector plug “set T”
3 Lower section, back panel 20 Type plate
4 DHW compression fitting 21 Mounting bracket
5 Cold water compression fitting 22 Stud for mounting bracket
6 Top, back panel 23
Cable grommet (power cable from above/below)
7 Electronics 24 Twin nipple (cold water with shut off valve)
8 Coding card for output selection for
the DDLE LCD 18/21/24 25 Flat packing
9 LED diagnostic “traffic light” for operating
and fault indications 26 Screws/rawl plugs for fixing the back panel in
case of water connection on finished walls
10 Plug-in position from the temperature
selector cable 27 Flow limiter, only for theDDLE LCD 18/21/24
(secured to the cold water pipe)
11 Safety pressure limiter (AP 3) with reset
button 28 Installation and operating instructions
12 Mains terminal 29 Installation template
13 Knock-out for power connection from above 30 Sieve
14 Fixing toggle 31 Flow limiter
15 Outlet sensor 32 Profile washer
16 High limit safety cut-out (STB) with reset
button 33 Support panel
17 Heating system
2.2 Brief description
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.
The bare wire heating system is suitable for hard and soft water areas (for application range, see
"5.2 Application areas").
2.3 Important information
s !IRINTHECOLDWATERSUPPLYCANDESTROYTHEBAREWIREHEATINGSYSTEMINSIDETHEEQUIPMENTORCANTRIP
THESAFETYSYSTEM)FTHEWATERSUPPLYTOTHEINSTANTANEOUSWATERHEATERHASBEENINTERRUPTEDEG
BECAUSEOFARISKOFFROSTORWORKONTHEWATERSYSTEMTAKETHEFOLLOWINGMEASURESPRIORTOTAKINGTHE
EQUIPMENTBACKINTOUSE
2EMOVEFUSESORTRIPTHEAPPROPRIATE-#"S
/PENANDCLOSEATAPDOWNSTREAMOFTHEEQUIPMENTSEVERALTIMESUNTILALLAIRHASBEENVENTED
FROMTHECOLDWATERSUPPLYLINEUPSTREAMANDTHEEQUIPMENT
2EPLACETHEFUSESORRESETTHERELEVANT-#"S
4HEINSTANTANEOUSWATERHEATERISEQUIPPEDWITHANAIRDETECTORWHICHTOTHEGREATESTEXTENT
PREVENTSDAMAGETOTHEHEATINGSYSTEM
)FDURINGOPERATIONAIRISDRAWNINTOTHEINSTANTANEOUSWATERHEATERTHEEQUIPMENTSHUTSDOWN
THEHEATINGLOADFORONEMINUTETHEREBYPROTECTINGTHEEQUIPMENT
s 4APS
n
$IRECTDRAWOFFTAPFORINSTANTANEOUSWATERHEATER!$%O7$MONOLEVERMIXERWITHCHANGEOVER
BATHHANDSHOWERPARTNO
4HEINSTALLATIONMAYBECARRIEDOUTUSINGCOMMERCIALLYAVAILABLEPRESSURETESTEDTAPS
&ORTHERMOSTATICPRESSURETESTEDVALVESSEEINFORMATION2ECOMMENDEDADJUSTMENT
s !LWAYSCAREFULLYOBSERVEALLINFORMATIONINTHESEOPERATINGANDINSTALLATIONINSTRUCTIONS
4HESECONTAINIMPORTANTINFORMATIONREGARDINGSAFETYOPERATIONINSTALLATIONANDMAINTENANCEOFTHIS
EQUIPMENT
2.4 Instructions and regulations
s 4HEINSTALLATIONWATERANDELECTRICALWORKANDCOMMISSIONINGASWELLASTHEMAINTENANCEOFTHIS
equipment, must only be carried out by a qualified contractor in accordance with these instructions.
s 0ERFECTFUNCTIONANDSAFEOPERATIONCANONLYBEASSUREDWHENUSINGORIGINALACCESSORIESANDSPAREPARTS
intended for this equipment.
s /BSERVEALLLOCALLYAPPLICABLEINSTRUCTIONSANDREGULATIONSREGARDINGWATERANDELECTRICALCONNECTIONSSUCH
For contractors
2. Installation instructions
27
!
For contractors
as DIN VDE 0100, DIN 1988, EN 806, DIN 4109, DIN 44851.
s /BSERVEALLREGULATIONSOFYOURLOCALWATERANDELECTRICITYSUPPLYCOMPANIES
s /BSERVETHETYPEPLATE ( A20).
s 3EE3PECIlCATION
4HESPECIlCELECTRICALRESISTANTOFTHEWATERUSEDMUSTNOTFALLBELOWTHATSTATEDONTHETYPEPLATE)NA
LINKEDWATERNETWORKOBSERVETHELOWESTELECTRICALWATERRESISTANCESEE!PPLICATIONAREAS9OUR
WATERSUPPLYCOMPANYWILLADVISEYOUOFTHESPECIlCELECTRICALWATERRESISTANCEORCONDUCTIVITY
s )NSTALLTHEDEVICEONLYINANENCLOSEDROOMFREEFROMTHERISKOFFROST3TORETHEDISMANTLEDDEVICEINA
room free from the risk of frost, as water residues remain inside the device.
s 4HEPROTECTION)0HOSEPROOFCANONLYBEENSUREDWITHACORRECTLYlTTEDCABLEGROMMET
s Water installation:
n #OLDWATERLINEMATERIAL
Steel, copper or plastic pipework.
n $(7LINEMATERIAL
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.
s !SAFETYVALVEISNOTREQUIRED
s .EVERUSETAPSVALVESFOROPENVENTEDEQUIPMENT
s &ORTHERMOSTATICVALVESSEE2ECOMMENDEDADJUSTMENT
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”).
s Electrical installation:
s 5SEONLYPERMANENTLYWIREDPOWERCABLES
s 4HEEQUIPMENTMUSTBEABLETOBESEPARATEDFROMTHEMAINSPOWERSUPPLYFOREXAMPLEBYFUSESTHAT
disconnect all poles with at least 3 mm contact separation.
28
For contractors
3.1 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- I):
s 4HEDEVICEISSUITABLEFORABOVEORUNDERSINKINSTALLATION C.
s 7ATERCONNECTIONTHREADEDlTTINGSBELOWTHEPLASTER
s 0OWERCONNECTIONBELOWTHEPLASTERINTHEUPPERDEVICEAREA
Important information 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:
s Re-plug the coding card
Re-plug the coding card ( AACCORDINGTOTHESELECTEDOUTPUTFORSELECTABLEOUTPUTANDFUSEPROTECTION
see "Specification“.
Mark the connected load on the type plate ( A20) with a permanent marker.
sReplace the flow limiter
If 24 kW connected load has been selected, replace the fitted flow limiter ( O31, white) with the flow limiter
supplied (orange, fixed to the cold water pipe).
3.2 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.
3.3 Preparing the device installation
s /PENTHEDEVICE D:
aDisengage the locking device with a screwdriver.
bOpen and remove the device cap.
s 2EMOVETHELOWERPARTOFTHEBACKPANEL E:
aPush in both locking hooks.
bRemove the lower part of the back panel towards the front.
s "REAKOUTTHECABLEGROMMETKNOCKOUTINTHEBACKPANEL ( Fa). If the wrong knock-out has been
opened by mistake, a new back panel must be used.
s 4RIMTHEPOWERCABLETOSIZE ( Fb).
s 2EMOVETHEPROTECTIVETRANSPORTPLUGSFROMTHEWATERCONNECTIONS.
3.4 Fitting the mounting bracket G
s -ARKOUTTHEHOLESTOBEDRILLEDUSINGTHEINSTALLATIONTEMPLATESUPPLIEDEXISTINGSUITABLE!%'MOUNTING
bracket can be used).
s 3ECURETHEMOUNTINGBRACKETWITHSCREWSANDRAWLPLUGSNOTPARTOFTHESTANDARDDELIVERYSELECTIN
accordance with the material of the fixing wall).
s )NSERTTHESTUDSSUPPLIEDINTOTHEMOUNTINGBRACKET
3.5 Equipment installation G
s Seal in and insert the twin nipples.
s 0USHTHECABLEGROMMETOVERTHEPOWERCABLE
s 3LIDETHEBACKPANELOVERTHESTUDSANDTHECABLEGROMMETPULLTHECABLEGROMMETWITHAPAIROFPLIERS
against the locking hooks and let both hooks audibly click into place.
s 0USHTHEBACKPANELlRMLYANDmUSHAGAINSTTHEWALLANDLOCKWITHTHElXINGTOGGLE!TTHEBOTTOM
the device can be secure with 2 additional screws ( M26).
3.6 Water connection H
s 0OSITIONTHETHREADEDCONNECTIONSWITHmATPACKINGONTOTHETWINNIPPLESFORTHISOBSERVETHECORRECT
seating of the connections (never twist the bayonet closures inside the device).
Important information:
s 4HOROUGHLYmUSHTHECOLDWATERSUPPLYLINE
s )FTHECORRECTFUNCTIONCANNOTBEASSUREDDUETOINADEQUATEmOWPRESSUREEG-0ABARREPLACE
the flow limiter ( O31) and reinsert the profile washer ( O32). If necessary, increase the pressure in the
water installation.
3. Standard Installation for contractors
Power: Unfinished walls - top; Water: Unfinished walls
29
s Never replace the pressure limiter when using a thermostatic valve.
s Never use the shut-off valve in the cold water supply (24) to reduce the flow rate.
3.7 Power supply
s #ONNECTTHEPOWERCABLETOTHETERMINALSTRIPSEEWIRINGDIAGRAM I).
STB = High limit safety cut-out
AP3 = Safety pressure limiter
Important information:
s The protection level IP 25 (hoseproof) is only assured if the cable grommet is fitted correctly ( Gor. K)
and if the cable sheath is sealed correctly.
s Connect the equipment to earth.
s For supply cables > 6 mm², increase the hole in the cable grommet.
3.8 Completing the installation
Click the lower part of the back panel ( E3) into place.
3.9 Commissioning (only by a qualified contractor)
1 &ILLANDVENTTHEEQUIPMENT0LEASENOTE"OILDRYRISK
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".
2 !CTIVATETHESAFETYPRESSURELIMITER!0
The instantaneous water heater is delivered with the safety
pressure limiter triggered (press the reset button).
3 0USHTHETEMPERATURESELECTORCABLEPLUGONTOTHE
ELECTRONIC0#"
4 &ITANDAUDIBLYLETTHEDEVICECAPCLICKINTOPLACE
Check the firm seat of the device cap on the back panel.
5 3WITCHONTHEMAINSPOWER
6 4URNTHETEMPERATURESELECTORASFARASPOSSIBLECLOCKWISE
ANDANTICLOCKWISEWHICHCALIBRATESTHETEMPERATURE
7 #HECKTHEINSTANTANEOUSWATERHEATERFUNCTION
Optional displays of the “traffic light” indicators ( A9), see also
“7. Troubleshooting”):
red illuminates in case of faults
yellow illuminates when the equipment is heating water
green flashing - equipment is supplied with mains power
Equipment handover
%XPLAINTHEEQUIPMENTFUNCTIONTOTHEUSERANDFAMILIARISETHE
USERWITHITSOPERATION
Important information:
s -AKETHEUSERAWAREOFPOSSIBLEDANGERSSCALDING
s (ANDOVERTHESEINSTRUCTIONSTOTHEUSERFORSAFEKEEPING
1
4
5
6
3
2
C26_02_02_0834
For contractors
30
For contractors
!LTERNATIVEINSTALLATIONMETHODSARESHOWNINlGURES J O
4.1 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 -OVETHETERMINALSTRIPFROMTHETOPTOTHEBOTTOMFORTHISUNDOTHESCREWANDRElTITINTOTHETERMINAL
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.
4.2 Power supply – finished walls
s #UTBREAKAHOLEINTOTHEBACKPANELSUITABLEFORTHEPOWERCABLEFORPOSSIBLEKNOCKOUTSSEE J).
s 7ITHPOWERSUPPLYONlNISHEDWALLSTHEPROTECTIONRATINGISREDUCEDTO)0SPLASHPROOF
0LEASENOTE
Mark the type plate with a permanent marker:
Cross out IP 25 and tick the IP 24 box.
4.3 Priority control L
When used in conjunction with other electrical equipment, e.g. electric storage heaters, use the maximum
demand relay:
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.
4HERELAYTRIPSASSOONASTHEINSTANTANEOUSWATERHEATERSTARTS
/NLYCONNECTTHEAUTOMATICMAXIMUMDEMANDCONTROLLERTOTHECENTRALPHASEOFTHEEQUIPMENTTERMINALS
MAINSPOWER
4.4 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.
4.5 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.
4.6 Taps for finished walls
!%'(AUSTECHNIKPRESSURETESTEDTAPFORlNISHEDWALLS
!$%O7$ NPARTNO
s &ITPLUG'WITHGASKETSA
(part of the standard delivery of the pressure tested tap ADEo 70 WD).
s &ITTHETAP
s )NSERTTHESUPPORTPLATEINTOTHELOWERPARTOFTHEBACKPANEL4HESUPPORTPLATEISPARTOFTHESTANDARD
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 ( M32).
s Push the tap pipes from above through the support plate up to the lower part of the back panel.
s 0USHTHEOPENENDOFTHEPIPESINTOTHEVALVE
s #LICKTHELOWERPARTOFTHEBACKPANELTOGETHERWITHTHESUPPORTPANELANDTHEPIPESINTOTHEUPPERPART
of the back panel.
s 3ECURETHECONNECTIONPIPESONTHEDEVICE
4HEDEVICECAPNEEDSTOTHEPREPAREDTORTHISINSTALLATION
Cleanly break out the knock-outs in the device cap ( Ma), use a file if necessary.
$EVICElXING
Secure the back panel in the lower part of the device with two additional screws ( M26).
4. Alternative installation methods for contractors
Power supply: Unfinished walls - below, maximum demand relay; undersink installation, water
connections - top; water: finished walls
31
Table 3
#APINSTALLATION
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.
5. Specification and application areas for contractors
5.1 Specification
(The details on the type plate apply)
5.2 Application areas
Specific electrical resistance and specific electrical conductivity the water.
Application range with preheated water.
If you are operating this appliance with preheated water ≥25 °C, the water resistance at ρ15 °C must
be ≥1200 Ωcm.
Table 4
For contractors
Type DDLE LCD 18 DDLE LCD 18/21/24
with selectable output
DDLE LCD 27
Part no. 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
without DMB
MPa (bar) / l/min
MPa (bar) / l/min
0.08 (0.8) / 5.2
0.06 (0.6) / 5.2
0.08 (0.8) / 5.2
0.06 (0.6) / 5.2
0.1 (1.0) / 6.0
0.08 (0.8) / 6.0
0.13 (1.3) / 6.9
0.10 (1.0) / 6.9
0.16 (1.6) / 7.7
0.12 (1.2) / 7.
7
Throughput limit (DMB)
l/min
Colour
8.0
white
8.0
white
8.0
white
9.0
orange
9.0
orange
Nominal capacity 0.4 l
Type sealed/unvented
Rated operating pressure 1 MPa (10 bar)
Weight 3.6 kg
Protection class to EN 60335 1
Protection level to EN 60529 IP 25
Test symbols see type plate
Water connection G ½” (male thread)
Power supply 3/PE ~ 400 V - 50 Hz
Bare wire heating system see application areas
Cold water inlet temperature max. 60 °C
Applications water with low limescale levels and those with limescale content
Throughput “ON” ≥2.5 l/min
Details as application ranges for different reference temperatures
standard details
at 15 °C at 20 °C at 25 °C
Resistance
Conductivity
Conductivity
Ωcm
mS/m
μS/cm
≥900
≤111
≤ 1110
≥ 800
≤ 125
≤ 1250
≥ 735
≤ 136
≤ 1360
32
6. Troubleshooting by the user
For users
Fault Cause Remedy
The heating system inside the
instantaneous water heater will not
start in spite of the tap being fully open.
No voltage. User / contractor:
Check the fuses in your fuse board.
The start-up volume required to start the
heater has not been reached.
Contamination or scaling of perlators in
water taps or shower heads.
User / contractor:
Clean and / or descale.
Heating system faulty. Call service / contractor:
Test heater and replace, if required.
Intermittent cold water The air sensor detects the presence of air
in water and briefly switches the heater
off.
Device starts again after one minute.
Table 5
33
Display options LED diagnostic “traffic lights”
Red illuminates in case of faults
Yellow illuminates when the equipment is heating water
Green flashing: the device is supplied with power
Fault / Diagnostic “traffic light”
display*
Cause Remedy
Flow rate too low Shower head/perlators scaled up
Contamination
Descale and replace, if required.
Clean sieve ( H30).
Set temperature is not achieved One phase down Check fuse/MCB (fuse box).
Heater does not switch on / no hot
water
The air sensor detects the presence of air
in water and briefly switches the heater
off.
Device starts again after one minute.
No hot water Fuse/MCB blown/tripped Check fuse/MCB (fuse box).
No “traffic light” display Safety pressure limiter AP 3 has tripped
Faulty electronics
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 safety
pressure limiter (push A11).
Test the electronics PCB ( A7) and
replace, if required.
No hot water; flow rate > 3 l/min
Traffic light display:
green flashing or constantly ON
Faulty electronics
Flow sensor DFE not plugged in
Flow sensor DFE faulty
Test the electronics PCB ( A7) and
replace, if required.
Refit the plug of the electronics PCB.
Check and replace the flow switch,
if required.
No hot water; flow rate > 3 l/min
Traffic light display:
constant yellow illumination
green flashing
High limit safety cut-out triggered or
cable break
Heating system faulty
Faulty electronics
Check high limit safety cut-out and
replace, if required.
Test the heating system resistor ( A17)
and replace, if required
Test the electronics PCB ( A7) and
replace, if required.
No hot water
Traffic light display:
constant red illumination
green flashing
Cold water inlet temperature > 45 °C
Cold water sensor faulty
Reduce the temperature of the cold water
supply to the device.
Test the electronics PCB ( A7) and
replace, if required.
Inaccurate temperature control
No “traffic light” display
Outlet sensor pulled or lead broken Push on outlet sensor lead, check and
replace sensor/lead, if required.
No hot water
Traffic light display:
constant red illumination
Outlet sensor faulty (short circuit) Test outlet sensor and replace, if required.
Table 6
For contractors
7. Troubleshooting by the contractor
34
For contractors
s $IRECTTAPINSTANTANEOUSWATERHEATERS
ADEo 70 WD - mono-lever mixer tap with changeover bath/hand shower
Part no. 183934
s )NSTALLATIONACCESSORIES
Pipe assembly undersink installation UT 104
Part no. 184421
Water connections with 12 mm compression fittings
s 5NIVERSALMOUNTINGFRAME
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 any point behind the
equipment. This increases the equipment depth by 30 mm. This set reduces the protection to IP 24 (splash-
proof).
s /FFSETINSTALLATIONSETFORUNlNISHEDWALLS
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.
s 0IPEASSEMBLYREPLACEMENTOFAGASlREDWATERHEATER
Part no. 227703
Comprising:
– Universal 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).
s !UTOMATICMAXIMUMDEMANDCONTROLLER,2!
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.
s !CCESSORIESFOROPERATIONOFA$$,%,#$WITHPREHEATEDWATER 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.
8. Special accessories
35
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.
!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
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.
281475-34950-0844
Vertriebszentrale
EHT Haustechnik GmbH
Markenvertrieb AEG
Gutenstetter Straße 10
90449 Nürnberg
www.aeg-haustechnik.de
Tel. 0 18 03 / 91 13 23
Fax 09 11 / 96 56 - 44 4
Kundendienstzentrale
Holzminden
Fürstenberger 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. 0 18 03 / 70 20 20
Fax 0 18 03 / 70 20 25
Ersatzteilverkauf
Tel. 0 18 03 / 70 20 40
Fax 0 18 03 / 70 20 45
Deutschland
AEG Kundendienst
Dortmund
Oespel (Indupark)
Brennaborstr. 19
44149 Dortmund
Postfach 76 02 47
44064 Dortmund
Tel. 02 31 / 96 50 22 - 11
Fax 02 31 / 96 50 22 - 77
Hamburg
Georg-Heyken-Str. 4a
21147 Hamburg
Tel. 0 40 / 75 20 18 - 11
Fax 0 40 / 75 20 18 - 77
Holzminden
Fürstenberger Str. 77
37603 Holzminden
Tel. 0 18 03 / 70 20 20
Fax 0 18 03 / 70 20 25
Leipzig
Airport Gewerbepark-Glesien
Ikarusstr. 10
04435 Schkeuditz
Tel. 03 42 07 / 7 55 - 11
Fax 03 42 07 / 7 55 - 77
Stuttgart
Weilimdorf
Motorstr. 39
70499 Stuttgart
Tel. 07 11 / 9 88 67 - 11
Fax 07 11 / 9 88 67 - 77
Adressen und Kontakte
Irrtum und technische Änderungen vorbehalten · Subject to errors and technical changes! · Sous réserve d‘erreurs et de modifications techniques!
Onder voorbehoud van vergissingen en technische wijzigingen! · Correzioni riservati · Salvo error o modificación técnica! · Rätt till misstag och
tekniska ändringar förbehålls! · Excepto erro ou alteração técnica · Zastrzeżone zmiany techniczne i ewentualne błędy! · Omyly a technické změny
jsou vyhrazeny! · A muszaki változtatások és tévedések jogát fenntartjuk! · Boэможность неточностей и технических изменений не исключается!
0817
International
Austria
Stiebel Eltron Ges. m.b.H.
Eferdinger Str. 73
4600 Wels
Tel. 0 72 42 - 4 73 67 - 0
Fax 0 72 42 - 4 73 67 - 42
Belgium
EHT Belgium BVBA
Avenue du Port 104
1000 Brussel – Bruxelles
Tel. 02 - 4 22 25 34
Fax 02 - 4 22 25 21
Czech Republic
AEG Home Comfort
K Hájům 946
15500 Praha 5 - Stodulky
Tel. 2- 511161 11
Fax 2 - 511161 53
Hungary
Stiebel Eltron KFT
Pacsirtamező 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. 0 73 - 6 23 00 00
Fax 0 73 - 6 23 11 41
Polska
AEG Oddzial Stiebel Eltron Polska Sp. z.o.o.
Ul. Instalatorów 9
02-237 Warszawa
Tel. 022 -846 48 20
Fax 0 22 -846 67 03
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 Mägenwill
Tel. 0 62 - 8 89 92 14
Fax 0 62 - 8 89 91 26
www.aeg-haustechnik.de
© EHT Haustechnik
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2
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