Your New Appliance - Bosch RDH 1810 Installation And Operating Instructions Manual

6 | English
Operating instructions
Please read and observe the detailed safety instruc-
tions at the start of these instructions!
Important: The appliance may never be exposed to
frost!
Risk of electric shock!
Switch off the mains voltage supply immediately
if a fault occurs.
Immediately shut off the cold water supply to the ap-
pliance should it leak.

Your new appliance

The continuous-flow heater heats the water as it flows
through the appliance. The appliance only consumes
power during this period.
This appliance can supply hot water to taps in several
different locations. It should be installed close to the tap
that is used the most frequently. This will enable you to
reduce energy consumption.
How to operate the
continuous-flow heater
The continuous-flow heater has two power settings:
1 Economy setting – two thirds power
2 Intensive setting – full power
The 1 setting is ideal for:
Wash basin
Shower
Bidet
2 setting should be used where a higher temperature or
a larger volume of water is required, e. g.
Dishwashing
Cleaning
Bath tub
If you are using a thermostat-controlled mixer tap, set
the heater to 2.
1. Set the heater to either 1 or 2, as required.
2. Turn on the hot-water tap.
The continuous-flow heater switches on automatically
and heats the water as it flows through the appliance.
The heater switches off again when you turn off the tap.
9 000 913 849 | (28.10.13)
Multimatic
1 2
Increasing the water temperature
When the tap is turned on fully, it is possible that the
heater capacity is not sufficient to heat the water to the
required temperature.
Slightly close the hot-water tap. The water flows
through the appliance more slowly and reaches a
higher temperature as a result.
Decreasing the water temperature
Mix with cold water.
Note about operation
When a hot-water tap is turned on by only a small
amount, the continuous-flow heater operates at half
power regardless of which setting (1, 2) has been
selected.
When a hot-water tap is turned on fully, the appliance
operates at the maximum level of power that corre-
sponds to whichever setting has been selected.
Saving energy
Please use economy setting "1" as often as possible.
To minimise energy consumption when turning off the
hot water:
– Turn off the hot-water tap slowly in order to use the
residual heat of the continuous-flow heater.
– This also prevents the water temperature from briefly
increasing above the preselected temperature if the
hot-water tap is turned on again within the next few
minutes.
To obtain particularly uniform hot-water temperatures,
it is recommended to use thermostat-controlled mixer
taps.
The thermostat-controlled mixer tap must be suitable
for hydraulically controlled continuous-flow heater.
Winter operation
Note: It is possible in winter that the supply tempera-
ture of the water is reduced and the required outlet tem-
perature is no longer achieved.
In order to compensate for this temperature reduc-
tion, please reduce the water quantity on the tap until
the required water temperature is achieved.
Cleaning
Simply wipe the appliance with a damp cloth.
Do not use acidic or abrasive cleaning materials.
Notes: It is normally not necessary to descale the appli-
ance. However, extremely hard water and the frequent
flows of very hot water can cause the appliance to scale
up. In this case please contact our after-sales service.
Robert Bosch Hausgeräte GmbH