Page
Contents
Page
User Instructions
.....................................................................................................................................................................2
Condensing Boiler Installation Requirements
......................................................................................................................4
Condensing Combi Boiler Pre-Installation Requirements
...................................................................................................5
1.0
General Information
.
Introduction .....................................................................................................................................................6
.2
General Requirements .....................................................................................................................................6
.3
Combi General Requirements ..........................................................................................................................7
.4
Baffle Positioning .............................................................................................................................................7
.5
Components ...................................................................................................................................................8
2.0
Technical Details
2.
Combi Sequence of Operation Flow Chart ....................................................................................................5
2.2
Dimensions ...................................................................................................................................................6
2.3
Flue Options, Components & Dimensions......................................................................................................8
2.4
Condensate Disposal ....................................................................................................................................2
2.5
Technical Data ...............................................................................................................................................22
3.0
Electricity Supply & Wiring Details
3.
Dual Immersion Thermostat ...........................................................................................................................30
3.2
RDB Burner Control Box ...............................................................................................................................30
3.3
Combi Wiring Details .....................................................................................................................................3
3.4
Installation of a Combi Optional Programmer .................................................................................................34
3.5
Standard Timers for Combis ..........................................................................................................................35
3.6
Standard/System Boiler Optional Programmer ..............................................................................................35
4.0
Oil Supply
4.
One Pipe Gravity System ...............................................................................................................................39
4.2
Two Pipe System ...........................................................................................................................................40
4.3
De-aerator System ........................................................................................................................................40
4.4
One Pipe Lift System .....................................................................................................................................4
5.0
Flues
5.
Installation of Balanced Flues.........................................................................................................................42
5.2
Conventional Flues ........................................................................................................................................44
5.3
Flue Terminal Positions ..................................................................................................................................44
6.0
Air Supply
6.
Open Flue Boilers ..........................................................................................................................................46
6.2
Balanced Flue Boilers ....................................................................................................................................46
7.0
Installation Requirements
7.
General Requirements ...................................................................................................................................47
7.2
Sealed Systems ............................................................................................................................................48
7.3
Combi Domestic Hot Water ...........................................................................................................................49
8.0
Burners
8.
RDB Burner ...................................................................................................................................................50
8.2
Oil Pump .......................................................................................................................................................50
8.3
Electrical Connections ...................................................................................................................................50
8.4
Electrode Setting ...........................................................................................................................................5
8.5
Burner Start-Up Cycle ...................................................................................................................................5
8.6
Air Damper Adjustment .................................................................................................................................5
9.0
Commissioning & Servicing
9.
Commissioning..............................................................................................................................................52
9.2
Servicing .......................................................................................................................................................52
10.0
Burner Fault Finding
0.
Riello RDB .....................................................................................................................................................53
11.0
Combi Fault Finding
.
Central Heating .............................................................................................................................................54
.2
Domestic Hot Water ......................................................................................................................................55
12.0
Optional Boiler Mounted Digital Timer
2.
Operational Instructions .................................................................................................................................56
13.0
Spares
3.
RDB 2.2 Spares ............................................................................................................................................60
3.2
Pipe Spares ...................................................................................................................................................6
3.3
Boiler Short Parts List ....................................................................................................................................62
14.0
Guarantee Terms & Conditions
...............................................................................................................................63
Commissioning/Service Record
.............................................................................................................................64
