clage E-convenience DEX 12 Instruction Manual

Operating instructions for the user
en > 
E-convenience instant water heater DEX 12
Subject to technical changes, design changes and errors. 
9120-15027 12.20
*9120-15027*

DEX ELECTRONIC MPS®
2
Contents
1. Safety instructions..............................................................................................2
To observe additionally for pressureless installation: .................................................................3
2. Description of appliance.........................................................................................3
3. How to use ....................................................................................................4
Temperature setting ............................................................................................4
Programme buttons.............................................................................................4
Temperature limitation ..........................................................................................4
Reset to factory setting ..........................................................................................5
How to save energy.............................................................................................5
Power limit ....................................................................................................5
Top-up heating.................................................................................................5
Venting after maintenance work ..................................................................................5
Cleaning and maintenance.......................................................................................6
4. Trouble-shooting and service.....................................................................................6
1. Safety instructions
• Do not use the appliance until it has been correctly installed and unless it is in perfect working order.
• Do not remove the front cover under any circumstances before switching off the mains electrical supply to
the unit.
• Never make technical modifications, either to the appliance itself or the electrical leads and water pipes.
• The appliance must be earthed at all times.
• Pay attention to the fact that water temperatures in excess of approx. 43°C are perceived as hot, especially
by children, and may cause a feeling of burning. Please note that the fittings and taps may be very hot
when the appliance has been in use for some time.
• The appliance is only suitable for domestic use and similar applications inside closed rooms, and must only
be used to heat incoming water from the mains supply.
• The appliance must never be exposed to frost.
• The values stated on the rating plate must be observed.
• In case of malfunction, disconnect the fuses immediately. In case of leaks, cut off the mains water supply
instantly. Repairs must only be carried out by the customer service department or an authorised profes-
sional.
• This appliance can be used by children aged 3years and above and persons with reduced physical, sensory
or mental capabilities or lack of experience and knowledge if they have been given supervision or ins-
truction concerning use of the appliance in a safe way and understand the hazards involved. Children shall
Please read these instructions carefully before installing or using the appli-
ance! Keep the instructions handy with the appliance for future use!
Instruction manuals are intended for the specialist who is responsible for the
installation of the appliance. Operation manuals are for the end user. The provided
manuals correspond to the technical specifications of the appliance.
The latest version of the instructions can be found online at:
www.clage.com/downloads

CLAGE
3
The instantaneous water heater DEX12 is a electronically controlled, pressure-resistant
water heater for a decentralised water supply to one or more tap connections.
Its electronic control regulates the power consumption depending on the selected out-
let temperature, the respective inlet temperature and the flow rate, thus reaching the
set temperature exactly to the degree and keeping it constant in case of pressure fluc-
tuations. The required outlet temperature can be entered on a keypad within a range
between 20 °C and 55°C and can be read off the digital display.
2. Description of appliance
not play with the appliance. Cleaning and user maintenance shall not be performed by children without
supervision.
• If the appliance is factory equipped with a connection cable, it must be replaced with an original spare cable
from the manufacturer in case of damage by an authorised technician in order to avoid any hazards.
• In accordance with VDE 0700, a circuit breaker with a contact opening gap of at least 3 mm for each pole
must be provided on the mains side of the connecting box for appliances with a fixed connection.
• The wall bracket must be secured with the supplied screws and dowels. The appliance must be secured to
the wall bracket. The appliance may only be operated if it has been properly mounted on the wall bracket.
• The prescribed nominal pressure stated on the rating plate may not be exceeded at any time.
• The required water resistance may not fall below the value stated on the rating plate at any time.
To observe additionally for pressureless installation:
• The water outlet behind the devices must not be blocked, and the water flow must not be restricted.
• The water outlet facilities, such as shower head, jet control and other outlet unit, must be decalcified regu-
larly. Deposits must be removed in regular intervals.
• Only the fittings recommended by the manufacturer may be used.
• If the appliance is exclusive connected to a single shower, only the shower heads recommended by the
manufacturer may be used. No other fittings or appliances which decrease the water flow to the shower
may be installed.
1. Safety instructions

DEX ELECTRONIC MPS®
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Set required
temperature
(e.g. 43 °C)
+
+
Press
≥ 3 sec
Confirmation
of deactivation
–1 °C
As soon as you open the hot water tap, the instantaneous water heater switches
on automatically. When the tap is closed, the appliance automatically switches
off.
Set temperature
+1 °C
Select preset temperature
A1 A2
B1 B2
Store temperature
2
Press
≥ 3 sec
Display of new value
(e.g. 43 °C)
4 3
1
3. How to use
1 2
Scalding protection off
Scalding protection on
Press
≥ 3 sec
1 2
Temperature setting
• You can set the required temperature gradually to a lower or higher value with the
arrow keys and . The temperature changes by 1 °C if key is pressed shortly one
time. Pressing a key for a longer time changes the temperature continuously. You
can select the outlet temperature in a range from 20 °C to 55 °C.
Note: If temperature is set below 20 °C with arrow key the display shows “--“
and the appliance switches off the heating function.
Note: If the water heater supplies a shower, the maximum temperature was
reduced during initial operation. This limitation cannot be exceeded.
Programme buttons
The two programme buttons and allow to quickly select the preset temperature.
When pressing a programme key, the preset temperature is selected and displayed.
The factory setting for programme is 35°C and for programme it is 48°C. You can
assign your own settings for the programme keys:
• Prolonged pressing of the programme key stores the previously selected tem-
perature. The display changes from ”P1” or “P2“ to the newly stored temperature
value. This newly set temperature is now available to you each time you press the
corresponding program key.
Temperature limitation
The instantaneous water heater DEX is equipped with an optional temperature limit-
ing function. This scalding protection is deactivated in the factory setting.
• Switch on: Select the limit temperature, then press and simultaneously for at
least 3 sec. The display briefly confirms the activation by “HI“.
• Switch off: press program key and simultaneously for at least 3 sec. The dis-
play briefly confirms the deactivation by “--“.
Note: By activation of the temperature limit also the programme keys are limited.
Therefore, the fixed values of the programme keys may be set again after deacti-
vation of the temperature limitation.

CLAGE
5
+
Reset to factory setting
All factory settings can be recalled:
• Press and simultaneously. The display now counts backwards from “10“ to
“00“ in second intervals. The appliance is reset at value “00“ - if you stop pressing
the keys earlier, you will cancel the process.
Reset
1
Press + hold!
Reset completed
3
2
3. How to use
Power limit
If the full output of the instantaneous water heater DEX does not suffice to heat the
tapped quantity of water, this will be indicated by the LCD decimal point (e.g. in winter
time, when opening several taps at once). When you reduce the hot water flow rate,
the LCD point stops indicating because the output of the appliance is again sufficient
to reach the set temperature.
Top-up heating
When operating with preheated water (e.g. with solar systems), you must ensure that
the inlet temperature does not exceed 70°C.
If the inlet temperature exceeds the setpoint, the appliance is not providing any out-
put, the flashing decimal point of the digital display indicates that the heating power
is switched off.
Unit provides no output
Power limit
Set the exact temperature you need on the appliance and open the hot water tap.
Once you feel that the water is too hot, do not add any cold water and, instead, enter
a lower temperature on the appliance. If you were to add cold water, the water already
heated would cool down again and valuable energy would be wasted. Moreover, the
cold water added in the tap is not covered by the control range of the electronic cir-
cuitry, with the result that temperature constancy is no longer guaranteed.
How to save energy
This instantaneous water heater features an automatic air bubble protection to pre-
vent it from inadvertently running dry. Nevertheless, the appliance must be vented
before using it for the first time. Each time the appliance is emptied (e.g. after work on
the plumbing system, if there is a risk of frost or following repair work), the appliance
must be re-vented before it is used again.
1. Disconnect the instantaneous water heater from the mains (e.g. via deactivating the
fuses).
2. Unscrew the jet regulator on the outlet fitting and open the cold water tap valve to
rinse out the water pipe and avoid contaminating the appliance or the jet regulator.
3. Open and close the hot water tap until no more air emerges from the pipe and all
air has been eliminated from the water heater.
4. Only then should you re-connect the power supply again (e.g. via activating the
fuses) to the instantaneous water heater and screw the jet regulator back in.
5. The appliance activates the heater after approx. 10seconds of continuous water
flow.
Venting after maintenance work

DEX ELECTRONIC MPS®
6
3. How to use
• Plastic surfaces and fittings should only be wiped with a damp cloth. Do not use
abrasive or chlorine-based cleaning agents or solvents.
• For a good water supply, the outlet fittings (special tap aerators and shower heads)
should be unscrewed and cleaned at regular intervals. Every three years, the electri-
cal and plumbing components should be inspected by an authorised professional in
order to ensure proper functioning and operational safety at all times.
Cleaning and maintenance
Repairs must only be carried out by
authorised professionals.
If a fault in your appliance cannot be
rectified with the aid of this table,
please contact the service organisa-
tion of your importer or the Central
Customer Service Department. Please
have the details of the typeplate at
hand.
Problem Cause Solution
Water stays cold, digital
display does not light up
Master fuse tripped Renew or activate fuse
Safety pressure cut-
out tripped Contact customer service
Water stays cold, digital
display does light up
Safety thermal cut-
out tripped Contact customer service
Display flashes error
message “Er“
Control system has
switched off
Switch fuse off and on. If “Er“
still flashes contact customer
service
Flow rate of hot water too
weak
Outlet fitting dirty
or calcified
Clean shower head, jet
regulator or sieves
Fine filter dirty or
calcified
Let clean fine filter by customer
service
Selected temperature is
not reached, decimal point
lights up
Water flow rate too
high
Reduce water flow rate at the
tap
Selected temp. is not
reached, decimal point does
not light
Cold water has been
added via the tap
Tap hot water only; set
temperature for use
Decimal point flashes
Inlet temperature
exceeding nominal
temperature
Reduce inlet temperature
No response upon keypress Hood is not fitted
properly
Let refit the hood properly by
customer service
4. Trouble-shooting and service
CLAGE GmbH
After-Sales Service
Pirolweg 1 – 5
21337 Lüneburg
Germany
Phone: [phone]
Fax: [phone]
Email: [email protected]
This instantaneous water heater was manufactured conscientiously and checked sever-
al times before delivery. Should malfunctions nevertheless occur, it is usually only due
to a bagatelle. First attempt to switch the house fuses off and on again in order to reset
the electronics. Next, try to remedy the problem with reference to the following table.
In doing so, you will avoid unnecessary expense of customer service assistance.
EHAB CENTER FOR
IMPORT AND EXPORT
162 Omar Lotfy st
Sporting
21648 Alexandria
Arab republic of Egypt.
Call us: 01277779272
15421
Al-Zamil Co. for Industry,
Trade and Transport
2973 Imam Abdullah Bin Saud Bin Abdul
Aziz Road Unit No.6
Riyadh 13217
P.O.BOX: 41397
Kingdom of Saudi Arabia
Phone: [phone]
Fax: [phone]
Email: [email protected]om
www.zamilco.com
Nebraska Trading
Mr. Jalal Jaffer
Block 704 Building
2333 Road 439
Salmabad, Block No. 704
Manama – Bahrain
Phone: [phone]
Email: [e-mail]

CLAGE
6
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









162


01277779272
15421 
CLAGE GmbH

Pirolweg 1 – 5
21337 Lüneburg

[phone]

[phone] 
[email protected] 



13217
41397

[phone] 
[phone] 
[email protected]om
www.zamilco.com


704
4392333






DEX ELECTRONIC MPS®




5



0010  
00
00
+
Reset
1
Press + hold!
Reset completed
3
2
 .3

DEX
LCD
LCD



70


Unit provides no output
Power limit





 1
 2

 3

 4

10 .5


CLAGE
4


Set temperature
–1 °C +1 °C
Select preset temperature
A1 A2
B1 B2
Store temperature
2
Press
≥ 3 sec
Display of new value (e.g. 43 °C)
Set required
temperature
(e.g. 43 °C)
4 3
1
 .3
+
Press
≥ 3 sec
1 2
Scalding protection off
Confirmation
of deactivation
Scalding protection on
+
Press
≥ 3 sec
1 2


  
1
20
55
”--” 20




 

 35 
48

”P2”  “P1“




 +
.”HI”
 +
.”--” 



DEX ELECTRONIC MPS®
3





°55°20
 .1
3 




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






 .2

CLAGE
2
2 1
3
32
4 3
4 
4
4
5 
5
5 
5 
5
6
64
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 .1
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
 •
.
. •
. •
 •
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 •
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12.20
DEX 12
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