11 Commissioning ......................................................................................................................... 21
11.1 Reading the fi lling pressure ...............................................................................21
11.2 Switching on ....................................................................................................21
11.3 Filling the CH system (Central heating) ...............................................................21
11.4 Filling DHW Circuit ............................................................................................22
11.5 Filling the Condensate Trap ................................................................................22
11.6 Initial lighting ...................................................................................................22
11.7 Gas rates ..........................................................................................................23
11.8 Testing heating system ......................................................................................23
11.9 Testing domestic hot water system .....................................................................24
11.10 Completion .......................................................................................................24
12 Specifi ed Adjustment .................................................................................................................24
12.1 Heating circuit adjustment .................................................................................24
12.2 Installation settings ..........................................................................................25
12.3 After Sales Service settings ...............................................................................25
12.4 Status of the appliance ......................................................................................26
12.5 Test modes .......................................................................................................27
12.6 CO
2
measurement .............................................................................................27
12.7 Re-check and restart .........................................................................................27
13 User information ........................................................................................................................ 27
MAINTENANCE
14 Trouble-shooting ........................................................................................................................ 28
14.1 Fault diagnosis .................................................................................................28
14.2 Fault memory ....................................................................................................29
14.3 Fault codes .......................................................................................................29
14.4 Functional fl ow diagram ....................................................................................31
15 Gas conversion adjustments ....................................................................................................... 32
15.1 Settings ...........................................................................................................32
15.2 Restart - re-check commissioning ....................................................................... 33
16 Draining ................................................................................................................................... 33
16.1 Heating circuit .................................................................................................33
16.2 Domestic Hot water circuit ................................................................................33
17 Servicing ................................................................................................................................... 33
17.1 Annual Maintenance .........................................................................................34
17.2 Casing removing ...............................................................................................34
17.3 Combustion check and setting the air/gas ratio valve ..........................................35
17.4 Servicing ..........................................................................................................36
17.5 Silencer ...........................................................................................................36
17.6 Expansion vessel ..............................................................................................37
17.7 Condensate trap ...............................................................................................37
17.8 Combustion block .............................................................................................38
17.9 Service completion ...........................................................................................39
18 Replacement of Parts .................................................................................................................. 39
18.1 General ............................................................................................................39
18.2 Boiler Access ....................................................................................................40
18.3 Viewing window ................................................................................................40
18.4 Hydraulic block .................................................................................................41
18.5 Combustion block .............................................................................................43
18.6 Condensate trap ...............................................................................................45
18.7 PCB ..................................................................................................................45
19 Spare parts ................................................................................................................................ 46
20 Manual Handling ........................................................................................................................ 48
21 Declaration of Conformity ........................................................................................................... 49
TABLE OF CONTENTS
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