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Installation instructions
Install the continuous-flow heater as described in the
illustrated section. Observe the instructions in the
text.
The illustrations can be found in the centre of the
instruction manual.
Safety information
Risk of electric shock!
Switch off the mains voltage supply immediately
if a fault occurs.
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We do not accept liability for damage resulting from
failure to heed these instructions.
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The continuous-flow heater may only be connected
and put into operation by a qualified professional.
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Never open the appliance without disconnecting the
power supply beforehand.
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The statutory regulations of the respective country,
as well as those of the local electricity and water sup-
pliers, must be adhered to.
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The continuous-flow heater is a Class
must be connected to the protective earth.
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The appliance must be permanently connected to
installed pipes. The conductor cross-section must
comply with the installed appliance power.
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Caution
: Earthed water pipes may give the appear-
ance of a connected protective earth.
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To guarantee compliance to relevant safety regula-
tions, an all-pole separator must be fitted during in-
stallation. The contact opening must be at least 3 mm.
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The continuous-flow heater is only suitable for closed
(pressurized) operation.
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The tap and outlet fittings must be approved for
operation with closed (pressurized) continuous-flow
heater systems.
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The continuous-flow heater can be operated with
cold or pre-warmed water (for example, from a solar
energy unit water supply). Observe the technical data
and the special accessories for this purpose.
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The continuous-flow heater is only suitable for connec-
tion to DVGW (German Technical and Scientific Asso-
ciation for Gas and Water) approved plastic pipes.
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The continuous-flow heater may only be installed in
a frost-free room.
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Disconnect the electrical connection cable from the
supply and shut off the water supply before con-
necting the appliance!
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Connect the water supply and then connect the
electrical supply.
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Only make the openings which are required for instal-
lation on the rear of the appliance. If the appliance is
reinstalled, the unused openings must be provided
with watertight sealing.
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Do not touch electrically live parts after installation.
Robert Bosch Hausgeräte GmbH
Installation
Unpacking/Removing the cover (Figure I)
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Unpack the appliance and check for transport-related
damage.
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Please dispose of the packaging, and if applicable,
the old appliance in an environmentally-friendly
manner.
Preparations for installation (Figure II)
Important: Only use the supplied installation set.
The supplied water connection nozzles must be
installed!
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Shut off water supply. The electrical connection (con-
nection cable) must be disconnected from the power
supply. Unscrew the fuse or switch off the circuit
breaker.
Wall mounting (Figure III)
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The continuous-flow heater must be mounted on the
wall. Attach it if necessary on the lower adjustable
I appliance and
screws.
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The distance to the wall is variable. You can compen-
sate for any unevenness of the wall's surface.
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The grommet must tightly surround the connection
cable. If it is damaged during mounting, the openings
must be provided with watertight sealing.
Water connection (Figure IV)
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The continuous-flow heater must be vented. The
warm water tap must be opened and the appliance
must be flushed out thoroughly for 1 minute with
at least 6 litres of water.
Electrical connection/Mounting
(Figure V)
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The electrical supply terminal can be fitted at the top
or bottom. The sheath of the connection cable must
extend for at least 40 mm into the appliance.
Set the power using the power selector switch before
connecting the wires to the mains connection terminal:
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Set RDE 1821415 to 18 kW (down) or 21 kW (up).
The set power must be marked on the ratings plate.
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Now screw the wires tightly into the mains connec-
tion terminal.
English | 9
9 000 813 417 | (17.9.12)
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