Siemens DE 18515 Manuel D'installation, D'utilisation Et De Maintenance page 10

Installation instructions
Install the continuous-flow heater as described in the il-
lustrated section. Observe the instructions in the text.
Safety information
Risk of electric shock!
Switch off the mains voltage supply immediately if
a fault occurs.
We do not accept liability for damage resulting from
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failure to heed these instructions.
The continuous-flow heater may only be connected
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and put into operation by a qualified professional.
Never open the appliance without disconnecting the
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power supply beforehand.
The statutory regulations of the respective country, as
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well as those of the local electricity and water suppliers,
must be adhered to.
The continuous-flow heater is a Class I appliance and
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must be connected to the protective earth.
The appliance must be permanently connected to fixed
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wiring.
Caution: Earthed water pipes may give the appearance of
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a connected protective earth.
To guarantee compliance to relevant safety regulations,
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an all-pole separator must be fitted during installation.
The contact opening must be at least 3 mm.
The continuous-flow heater is only suitable for closed
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(pressurized) operation.
The tap and outlet fittings must be approved for operation
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with closed (pressurized) continuous-flow heater systems.
The continuous-flow heater can be operated with cold or
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pre-warmed water (for example, from a solar energy unit
water supply). Observe the technical data and the special
accessories for this purpose.
The continuous-flow heater is only suitable for connection
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to DVGW (German Technical and Scientific Association for
Gas and Water) approved plastic pipes.
The continuous-flow heater may only be installed in a
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frost-free room.
Disconnect the electrical connection cable from the
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supply and shut off the water supply before connect-
ing the appliance!
Connect the water supply and then connect the elec-
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trical supply.
Only make the openings which are required for instal-
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lation on the rear of the appliance. If the appliance is
reinstalled, the unused openings must be provided with
watertight sealing.
Do not touch electrically live parts after installation.
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10
en
Installation
Unpacking/Removing the cover
I.
Unpack the appliance and check for transport-related
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damage.
Please dispose of the packaging, and if applicable, the old
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appliance in an environmentally-friendly manner.
Preparations for installation
II.
Important: Only use the supplied installation set.
The supplied water connection nozzles must be installed!
Shut off water supply. The electrical connection (connec-
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tion cable) must be disconnected from the power supply.
Unscrew the fuse or switch off the circuit breaker.
Wall mounting
III.
The continuous-flow heater must be mounted on the
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wall. Attach it if necessary on the lower adjustable screws.
The distance to the wall is variable. You can compensate
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for any unevenness of the wall's surface.
The grommet must tightly surround the connection cable.
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If it is damaged during mounting, the openings must be
provided with watertight sealing.
Water connection
IV.
The continuous-flow heater must be vented. Open the
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warm water tap fully and flush out the appliance thor-
oughly for 1 minute.
Electrical connection/Mounting
V.
The electrical supply terminal can be fitted at the top or
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bottom. The sheath of the connection cable must extend
for at least 40 mm into the appliance.
Startup/additional information
VI.
Remove the flow-rate limiter (see Fig. A) with low water
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pressure.
Explain the operation of the continuous-flow heater to
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the user.
If the continuous-flow heater does not have sufficient
A
water flow due to low water line pressure in your do-
mestic plumbing system, remove the flow-rate
limiter.
Priority circuit for the combination with electrical stor-
B
age heaters:
For operation with a priority circuit, a special load
shedding relay BZ 45L20 (special accessory) is re-
quired. Other existing load shedding relays, with the
exception of electronic load shedding relays, may
malfunction.
The control electronics must be coded when operated
C
with a load shedding relay.
The filter upstream from the check valve in the cold
D
water supply inlet is clogged.
Remove the filter and either clean it or descale it.
See Figure D 1–3.