Meaning of Symbols ....................................................................................................................................................................8
Water heater Marking .................................................................................................................................................................9
Control Panel and Display .......................................................................................................................................................10
Status Messages ..........................................................................................................................................................................11
What to Check on a Regular Basis ........................................................................................................................................12
In case of Problem... ...................................................................................................................................................................12
Water heater Setup Guide .......................................................................................................................................................12
Connections - at the back ........................................................................................................................................................19
gas categories (All models) ....................................................................................................................................................22
General Recommendations for Chimney Connection ................................................................................................23
Calculation of the ue pipe length .....................................................................................................................................25
Cascade : calculation of the maximum length of ue pipes .....................................................................................26
Maximum Operating Conditions .........................................................................................................................................36
Recommendations for the prevention of corrosion and scaling in Heating Systems......................................37
G3 Requirements and Guidance - UK Only ......................................................................................................................38
Safety instructions for the installation .............................................................................................................................40
Tools Required for the Installation .......................................................................................................................................41
Water heater preparation ........................................................................................................................................................41
Recommendations for DHW Connections ........................................................................................................................42
Removal and Installation of the Front and Top Panels .................................................................................................43
Conversion to Propane ............................................................................................................................................................44
STARTING UP .................................................................................................................45
Safety Instructions for Starting Up .....................................................................................................................................45
Tools Required for Starting up ..............................................................................................................................................45
Checks before Starting up ......................................................................................................................................................45
Filling the system .......................................................................................................................................................................45
Starting up the Water heater .................................................................................................................................................46
Checking and Adjusting the Burner ...................................................................................................................................46
Safety instructions for the appliance maintenance ......................................................................................................47
Tools Required for Maintenance ...........................................................................................................................................47
Water heater shut down for Maintenance ........................................................................................................................47
Periodic Water heater Maintenance Tasks ........................................................................................................................47
Removal and Installation of the Burner ............................................................................................................................48
Removal, Check and Installation of the Burner Electrode .........................................................................................50
Cleaning the Exchanger ..........................................................................................................................................................50
Restarting after Maintenance ...............................................................................................................................................50
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