4
WARNING
This manual contains data and information for both the user and
the installer.
Specically, the user must pay attention to the chapters:
General warnings and safety devices, Control panel and Use of
the appliance.
ATTENTION
To preserve the life and eciency of the appliance, it is compulsory to install a polyphosphate dispenser in the presence of water
whose characteristics could result in the formation of mineral deposits.
According to Italian Presidential Decree 59/09 it is necessary to treat the water supply with temporary hardness greater than or equal
to 25 French degrees for the heating circuit and greater than or equal to 15 French degrees for domestic water through chemical
treatment (according to UNI 8065) of conditioning for powers ≤ 100 kW or softening for powers > 100 kW.
Failure to comply with the above entails cancellation of the warranty.
TABLE OF CONTENTS
GENERAL WARNING AND SAFETY DEVICES p. 5
DESCRIPTION OF THE APPLIANCE “ 5
Water heater components “ 6
Replacement of the electrode “ 7
Size and distances between hydraulic connections “ 7
Wiring diagram “ 8
Hydraulic circuit “ 8
Technical data “ 9
INSTALLATION “ 10
Regulations “ 10
Wall mounting “ 10
Electrical connection “ 10
Gas connection “ 10
Water connection “ 11
Evacuation of combustion products “ 11
Warnings before ignition “ 14
Checking the system pressure “ 14
Gas conversion “ 14
CONTROL PANEL “ 16
USE OF THE APPLIANCE “ 16
"SERVICE MENU" ACTIVATION “ 19
MAINTENANCE “ 22
A number of symbols are used In some parts of the manual:
ATTENTION = for actions that require particular care and
adequate preparation
PROHIBITED = for actions that MUST NOT be performed
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