OPERATION
Appliance description
WARNING Injury
!
The appliance may be used by children aged 8 and up and
persons with reduced physical, sensory or mental capa-
bilities 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 appli-
ance. Children must never clean the appliance or perform
user maintenance unless they are supervised.
Where children or persons with limited physical, sensory or men-
tal abilities are allowed to use this appliance, we recommend a
permanent temperature limit. A qualified contractor can set the
limit for you.
Material losses
!
The user should protect the appliance and its tap against
frost.
2.3
Test symbols
See type plate on the appliance.
3.
Appliance description
The electronically controlled instantaneous water heater with au-
tomatic output matching keeps the outlet temperature constant
up to the output limit. The temperature is then adjusted via the
draw-off tap.
Heating system
The bare wire heating system has a pressure-tested plastic casing.
The heating system is suitable for hard and soft water areas and is
largely insusceptible to scale build-up. This heating system ensures
rapid and efficient DHW availability.
Note
The appliance is equipped with an air detector that largely
prevents damage to the heating system. If, during op-
eration, 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.
40
35
30
f Turn the temperature selector to the required temperature.
f
4
| PEY 18/21/24
°C
45
50
55
60
Note
If the outlet temperature is not sufficiently high when the
draw-off valve is fully open and the temperature selector
is set to maximum, then more water is flowing through
the appliance than can be heated by the heating system
(appliance is at its output limit).
f Reduce the water volume at the draw-off valve.
f
Recommended setting for operation with a thermostatic valve
Set the temperature at the appliance to the maximum temperature.
Following an interruption to the water supply
Material losses
!
Following an interruption of the water supply the appli-
ance must be recommissioned by carrying out the follow-
ing steps, in order to prevent the destruction of the bare
wire heating system.
f Disconnect the appliance from the power supply by
f
removing the fuses/tripping the MCBs.
f Open the tap for one minute until the appliance and
f
its upstream cold water inlet line are free of air.
f Switch the mains power back ON again.
f
5.
Cleaning, care and maintenance
f Never use abrasive or corrosive cleaning agents. A damp cloth
f
is sufficient for cleaning the appliance.
f Check the taps regularly. Limescale deposits at the tap out-
f
lets can be removed using commercially available descaling
agents.
6.
Troubleshooting
Problem
Cause
The appliance will not
There is no power.
start despite the DHW
valve being fully open.
The flow rate is too low.
The aerator in the tap or
the shower head is scaled
up or contaminated.
Required temperature
The water supply has
> 45 °C is not achieved.
been interrupted.
The cold water inlet tem-
perature is > 45 °C.
If you cannot remedy the fault, notify your qualified contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate (000000-0000-00000):
Remedy
Check the fuses/MCBs in
your fuse box/distribution
panel.
Clean and/or descale the
aerator or shower head.
Vent the appliance and
the cold water inlet line
(see chapter "Settings").
Reduce the cold water
inlet temperature.
Nr.: 000000-0000-00000
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