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DEX 18 / 21 / 24 / 27 KW
8
Zu beachten sind:
• VDE 0100
• EN 806-2
• Bestimmungen der örtlichen
Energie- und Wasserversorgungs-
unternehmen
• Angaben auf Typenschild
• Technische Daten
Montageort
• Gerät nur in einem frostfreien Raum
installieren. Das Gerät darf niemals
Frost ausgesetzt werden.
• Das Gerät ist für eine Wandmontage
vorgesehen und muss senkrecht mit
untenliegenden Wasseranschlüssen
installiert werden.
• Das Gerät entspricht der Schutzart IP25
und darf gemäß VDE 0100 Teil 701 im
Schutzbereich 1 installiert werden.
• Um Wärmeverluste zu vermeiden,
sollte die Entfernung zwischen
Durchlauferhitzer und Zapfstelle mög-
lichst gering sein.
• Für Wartungsarbeiten sollte in der
Zuleitung ein Absperrventil installiert
werden. Das Gerät muss für Wartungs-
zwecke zugänglich sein.
• Es können Wasserleitungen aus
Kupfer oder Stahl ein gesetzt werden.
Kunstoffrohre dürfen nur verwendet
werden, wenn diese DIN 16893 Reihe 2
entsprechen. Die Warmwasserleitungen
müssen wärmegedämmt sein.
• Der spezifische Widerstand des Wassers
muss bei 15 °C mindestens 1100 Ω cm
betragen. Der spezifische Widerstand
des Wassers kann bei Ihrem Wasser-
versorgungs unternehmen erfragt
werden.
The following regulations must be
observed:
• Installation must comply with all
statutory regulations, as well as
those of the local electricity and
water supply companies.
• The specifications on the rating
plate
• Technical specifications
Installation site
• Appliance must only be installed in
frost-free rooms. Never expose appli-
ance to frost.
• The Appliance must be wall mounted
and has to be installed with water con-
nectors downward.
• The appliance complies with protect-
ion type IP25 and may therefore be
installed in protection zone 1 according
to VDE 0100 part 701.
• In order to avoid thermal losses, the
distance between the instantaneous
water heater and the tapping point
should be as small as possible.
• For maintenance work, a shut-off valve
should be installed in the supply line.
The appliance must be accessible for
maintenance work.
• Copper or steel connecting pipes may
be used. Plastic pipes may only be used
if they conform to DIN 16893, Series 2.
The hot water pipes must be thermally
insulated.
• The specific resistance of the water
must be at least 1100 Ω cm at 15 °C.
The specific resistance can be asked for
with your water distribution company.
7. Installation 7. Installation
Wichtiger Hinweis für
druckfeste Installationen
Falls ein Rückfluss verhin de rer in der
Installation notwen dig ist, darf die-
ser nur in der Warm wasser leitung
nach dem Durch lauf erhitzer installiert
werden.
Ein Rückflussverhinderer in der
Kaltwasserzuleitung vor dem
Durchlauferhitzer ist nicht zulässig!
Important notice for closed
outlet installations
If a non return valve is neces sary for
installation it must be installed in the
hot water outlet line after the instant
water heater.
A non return valve must NOT be fitted in
the cold inlet line before the appliance!
8


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