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49
2.2 Elektrischer Anschluß
Der elektrische Anschluß darf nur von
einem anerkannten Fachhandwerks-
betrieb vorgenommen werden.
Lebensgefahr durch Stromschlag
an spannungsführenden
Anschlüssen.
Vor Arbeiten am Gerät die
Stromzufuhr abschalten und vor
Wiedereinschalten sichern.
Öffnen Sie den Schaltkasten des
Heizgerätes gemäß der Installations-
anleitung.
Nehmen Sie die Anschlußverdrahtung
gemäß der nebenstehenden
Abbildung vor.
An den Anschlußklemmen 7, 8, 9
wird der Regler angeschlossen.
Bei Anschluß des VRT 390 muss eine
Brücke zwischen Klemme 3 und 4 des
Heizgerätes eingesetzt werden.
2.2 Electrical connection
The electrical connection should only be
completed by a professional installer.
There is a danger of fatal injury
due to electric shock in all live
sections.
ALWAYS shut off the power
supply and ensure it cannot be
reconnected by accident before
starting work on the system.
Open the boiler electronics control
box as shown in the installation
instructions.
Connect the wiring system as
indicated in the diagram shown here.
Connection terminals 7, 8, 9 are used
for the thermostat.
When connecting the VRT 390 unit,
there must be a bridge connection
between terminals 3 and 4 of the
heating appliance.
2.2 Raccordement électirque
Le raccordement électrique ne doit être
effectué que par une entreprise
spécialisée et reconnue.
Risque d’électrocution sur des
branchements conducteurs de
tension.
Avant les travaux sur les
appareils, couper l'alimentation
électrique, en particulier de la
chaudière et protéger contre une
remise en route.
Ouvrez le coffret de commande
électrique de l'appareil de chauffage
d'après les instructions d'installation.
Procédez au câblage de raccorde-
ment d'après la figure ci-contre.
Le thermostat d’ambiance est
raccordé sur les bornes 7,8,9.
Au raccordement du VRT 390 il faut
prévoir un pont entre la borne 3 et 4
de l'appareil de chauffage.
49


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