Operating Instructions and Installation Instructions

19
Operation – for users and qualied contractors
2.4 Test symbols
See type plate on the appliance.
Country-specic approvals and certications:
Germany
A general test certicate as verication of suitability re-
garding noise emissions has been issued for this appli-
ance, 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 system
The bare wire heating system has a pressure-tested plas-
tic casing. The heating system is suitable for hard and soft
water areas. This heating system has a low susceptibility
to scale build-up. This system ensures rapid and efcient
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.
4. Settings
The DHW outlet temperature can be variably adjusted.
Hand wash basin (approx.
35 °C)
Shower (approx. 40 °C)
Bath (approx. 45 °C)
Kitchen sink (approx. 55 °C)
» Turn the temperature selector to the required
temperature.
Temperature limit
Your qualied contractor can set a temperature limit of up
to 43 °C inside the appliance. With the temperature limit
enabled you can turn the temperature selector across its
full range. You can now set the outlet temperature only
between 30 °C and 43 °C.
Note
Should the outlet temperature fail to reach the re-
quired level with the draw-off valve fully open and
the temperature selector set to maximum, then more
water is owing through the appliance than can be
heated by the heating system. The appliance is at
its output limit.
» Reduce the water volume at the draw-off valve.
Recommended setting for operation with a
thermostatic valve
Set the temperature at the appliance to the maximum
temperature.
Following an interruption of the water supply
!
Material losses
In order to prevent the destruction of the bare wire
heating system, return the appliance into use follow-
ing an interruption of the water supply as follows:
» 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 sufcient for cleaning the appliance.
» Check the taps regularly. Limescale deposits at the
tap outlets can be removed using commercially avail-
able descaling agents.
6. Troubleshooting
Problem Cause Remedy
The appliance will not
start despite the DHW
valve being fully open.
There is no voltage at
the appliance.
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
"Operation / Set-
tings").
The cold water
inlet temperature is
> 45 °C.
Reduce the cold water
inlet temperature.
If you cannot remedy the fault, notify your qualied contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate (000000-0000-00000):
Nr.: 000000-0000-00000
D0000041614