Operating instructions
6 720 876 034 (2018/09)
6
Congratulations on purchasing this BOSCH appliance.
You have acquired a top-quality product, which will
give you a lot of enjoyment.
2
Operating instructions
2.1
Getting to know your appliance
This appliance is an electronically-regulated, pressurized continuous-
flow heater for decentrally supplying hot water.
The electronic continuous-flow heater heats the water as it flows through
the appliance. One or more taps can be supplied with warm water.
2.2
Operating elements
1
Rotary selector switch
2
Status display
3
Operating the appliance
3.1
Switching the appliance on and off
The continuous-flow heater switches on and heats the water when the
warm water tap is opened. It switches off again if the water tap is closed.
3.2
Setting the water temperature
• Turn the rotary selector switch.
Use the continuously-variable switch to set the desired temperature for.
Note:
If a thermostatic-regulating mixer tap is used for high
temperatures or for large water volumes, then it is recommended
that the setting “Bathing”
or “Rinsing”
be selected.
Increasing the water temperature
If a higher temperature is not obtained when the warm water tap is fully
opened, then this is because more water is flowing than the continuous-
flow heater’s power capacity can heat.
• If this happens, then slightly close the warm water tap.
Decreasing the water temperature
• Turn the rotary selector switch to a lower level e. g. “Washing hands”
.
Note:
If the temperature of the water supplying the appliance changes,
then the output temperature of the water leaving the tap also changes
correspondingly.
3.3
Status display
3.4
Startup after power failure
• Open the warm water tap fully and allow water to flow until it is warm.
3.5
Using the appliance after switching
off the water supply
• Switch off the appliance (unscrew the fuse in the fusebox).
• Open the warm water tap and keep it open until the air has
been completely forced out of the water pipe.
• Switch the fuse back on again.
• Open the warm water tap fully and allow water to flow for at least
one minute.
Only then (for safety reasons) will the appliance begin to heat.
The appliance is now ready to operate.
3.6
Saving energy
• Set the desired water temperature directly on the appliance.
The appliance is operated economically when set to approximately
40 °C (rotary selector switch: “Showering”
).
Note:
Mixing in of cold water at the faucet/fitting consumes unnecessary
water and energy.
This also accelerates calcification (scaling) of the appliance. Therefore,
please always set the desired temperature directly on the continuous-
flow heater.
3.7
Winter operation
Note:
It is possible in winter that the supply temperature of the water
is reduced and the required outlet temperature is no longer achieved.
• Reduce the water flow on the taps until the desired water
temperature is reached.
4
Cleaning
• Only wipe off the appliance using a moist cloth.
• Do not use acidic or abrasive cleaning materials.
• Do not use a steam cleaner.
Washing hands
Showering
Bathing
Rinsing
LED
Appliance status
Off
Off
Lights green
On
Flashes green (1/s)
The set temperature is not obtained; the rate
of water flow is too high for appliance rating
(the appliance has reached the power limit).
See “ A fault, what to do?”
Flashes green (2/s)
Cold-water rinse-through phase
Flashes red
