Technical data
Page 2 
10  INSTALLATION REQUIREMENTS ................................................................................. 70 
10.1  General Requirements ............................................................................................................. 70 
10.2  Sealed Systems ....................................................................................................................... 71 
10.3  Combi Domestic Hot Water ...................................................................................................... 72 
11  BURNERS ....................................................................................................................... 73 
11.1  RDB Burner .............................................................................................................................. 73 
11.2  Oil Pump .................................................................................................................................. 73 
11.3  Electrode Setting ...................................................................................................................... 74 
11.4  Burner Start-Up Cycle .............................................................................................................. 74 
11.5  Air Damper Adjustment ............................................................................................................ 74 
12  COMMISSIONING & SERVICING ................................................................................... 75 
12.1  Commissioning ......................................................................................................................... 75 
12.2  Servicing .................................................................................................................................. 75 
13  BURNER FAULT FINDING ............................................................................................. 76 
13.1  Riello RDB................................................................................................................................ 76 
14  COMBI FAULT FINDING ................................................................................................. 77 
14.1  Central Heating ........................................................................................................................ 77 
14.2  Domestic Hot Water ................................................................................................................. 78 
15  OPTIONAL BOILER MOUNTED DIGITAL TIMER .......................................................... 79 
15.1  Operating Instructions .............................................................................................................. 79 
16  SPARES .......................................................................................................................... 83 
16.1  RDB 2.2 Spares ....................................................................................................................... 83 
16.2  RDB 3.2 Spares ....................................................................................................................... 84 
16.3  Pipe Spares .............................................................................................................................. 85 
16.3  Pipe Spares cont‟d ................................................................................................................... 86 
16.4  Short Parts List - Boiler ............................................................................................................ 87 
17  YOUR GUARANTEES, TERMS & CONDITIONS ........................................................... 88 










