INDEX
General Information ...................................................................................................3
General Information ...................................................................................................... 3
Control Panel....................................................................................................................4
Overall wiew ..................................................................................................................... 5
Technical Information ................................................................................................... 6
Installation ..............................................................................................8
Reference Standards .....................................................................................................8
Sitting the appliance ..................................................................................................... 8
Overall dimensions ........................................................................................................ 9
Clearences ......................................................................................................................... 9
Monting the appliance ...............................................................................................10
Electrical connection...................................................................................................10
Gas Connection .............................................................................................................11
Water connection .........................................................................................................11
Pipe work .........................................................................................................................11
By-pass .............................................................................................................................11
System design ...............................................................................................................11
Drain Cocks .....................................................................................................................11
Safety valve discharge ................................................................................................12
Air release points ..........................................................................................................12
Main water feed - Central Heating .........................................................................12
Domestic Water .............................................................................................................12
Flue connection ............................................................................................................13
Fitting the coaxial fl ue ................................................................................................14
Fitting 80/125 Flue .......................................................................................................15
Fitting the fl ue (Twin pipe) .......................................................................................17
Electrical connection...................................................................................................21
Peripheral unit connection .......................................................................................21
Room Thermostat connection .................................................................................22
Outdoor sensor connection .....................................................................................22
Wiring Diagram for connection to an open Vented Cylinder .......................23
Wiring Diagram for connection to an MTS Vented Cylinder .........................24
Electrical diagram .........................................................................................................25
Water circuit diagram..................................................................................................27
Commissioning .....................................................................................28
Ignition preparation ....................................................................................................28
Initial start-up ................................................................................................................28
De-aeration cycle .........................................................................................................28
Checking the gas settings .........................................................................................29
Supply working pressure check ..............................................................................29
Checking the maximum power...............................................................................29
Checking the minimum power ...............................................................................29
Checking the maximum c.h. power .......................................................................30
Soft Light adjustment .................................................................................................30
Ignition Delay adjustment ........................................................................................30
Adjustment the Maximum absolute Heating power ......................................30
Gas table ..........................................................................................................................31
Gas changeover ............................................................................................................31
Auto function .................................................................................................................32
Boiler protection devices .....................................................................33
Safety shut-off ...............................................................................................................33
Shutdown ........................................................................................................................33
Malfunction warning ..................................................................................................33
Table summarising error codes ...............................................................................33
Anti-frost device ...........................................................................................................34
Combustion Analysis ..................................................................................................34
Product of combustion Discharge Monitoring .................................................34
Flue test mode ...............................................................................................................34
settings - adjustment - problem identi cation menus ......................35
Menu 2 - Boiler parameter ........................................................................................36
Menu 3 - Boiler with storage and boiler with solar kit ....................................37
Menu 4 - Zone 1 parameter ......................................................................................38
Menu 5 - Zone 2 parameter ......................................................................................39
Menu 7 - Test & Utilities ..............................................................................................40
Menu 8 - Service Parameter ......................................................................................40
Maintenance .........................................................................................42
General comments ......................................................................................................42
Operational test ............................................................................................................42
Draining procedures ...................................................................................................42
Draining the D.H.W. system and indirect cylinder ............................................42
Draining the System ....................................................................................................43
Completion .....................................................................................................................43
Operational Checks .....................................................................................................43
Instructing the end user ............................................................................................43
Maintenance Guide ..............................................................................44
General access ...............................................................................................................44
Electrical unit .................................................................................................................45
Control box access .......................................................................................................45
Fuse ...................................................................................................................................45
Main P.C.B. .......................................................................................................................46
Display P.C.B. ...................................................................................................................46
Hydraulic unit ................................................................................................................47
Richt hand hydraulic block assembly....................................................................47
3 way valve .....................................................................................................................48
Draining ...........................................................................................................................48
Automatic air vent........................................................................................................49
Primary water pressure sensor ................................................................................49
Pump .................................................................................................................................50
C.H. Filter..........................................................................................................................50
D.H.W. fl ow switch assembly ....................................................................................51
Left hand hydraulic block assembly ......................................................................52
D.H.W. Temperature sensor .......................................................................................53
Safety valve .....................................................................................................................53
By-pass assmbly ............................................................................................................54
Seconday exchanger ...................................................................................................54
Temperature sensor & overheat thermostat ......................................................55
Main heat exchanger ..................................................................................................56
Burner unit ......................................................................................................................57
Spark generator ............................................................................................................58
Elctrodes assembly ......................................................................................................58
Burner ...............................................................................................................................59
Manifold ...........................................................................................................................59
Fun .....................................................................................................................................60
Air pressure switch .......................................................................................................60
Gas valve .........................................................................................................................61
Annual Maintenance ...................................................................................................62
Short List ........................................................................................................................63
Benchmark - Gas boiler commissioning checklist .....................................65
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