Table of Contents
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10.2.2
System Boiler Filling ...................................................................................................................... 100
10.2.3
Combination Boiler Filling ............................................................................................................. 101
10.2.4
System Pressure ............................................................................................................................. 101
10.2.5
Pressure Relief Valve ..................................................................................................................... 102
10.2.6
Low Pressure Switch ...................................................................................................................... 102
10.3 Combination Boiler Domestic Hot Water ................................................................................ 102
10.3.1
Mains Water Pressure .................................................................................................................... 102
10.3.2
Water Hardness ............................................................................................................................... 102
10.3.3
Boreholes ........................................................................................................................................ 102
10.3.4
Flow Restrictor ................................................................................................................................ 103
10.3.5
Pipework .......................................................................................................................................... 103
10.3.6
Balanced flue ................................................................................................................................... 103
10.3.7
Plinth / Base .................................................................................................................................... 103
11
BURNERS, COMMISSIONING AND SERVICING ........................................................ 104
11.1 RDB BX Burner ...................................................................................................................... 104
11.2 Oil Pump ................................................................................................................................ 104
11.3 Electrode Setting .................................................................................................................... 105
11.4 Burner Start-Up Cycle ............................................................................................................ 106
11.5 Air Damper Adjustment .......................................................................................................... 107
11.5.1
Ambient Air Correction .................................................................................................................. 108
11.6 Combustion Head Adjustment ................................................................................................ 109
11.6.1
RDB 2.2 BX Adjustment ................................................................................................................. 109
11.6.2
RDB 3.2 BX Adjustment ................................................................................................................. 110
11.7 Commissioning ....................................................................................................................... 111
11.7.1
Programming Engineer Parameters - Combination Boilers ...................................................... 112
11.7.2
Engineer Parameter List ................................................................................................................ 113
11.8 Servicing ................................................................................................................................ 114
11.8.1
General Requirements.................................................................................................................... 114
11.8.2
Test Mode ........................................................................................................................................ 115
12
BURNER FAULT FINDING ........................................................................................... 116
12.1 Riello RDB BX ........................................................................................................................ 116
13
COMBINATION BOILER FAULT FINDING ................................................................... 117
13.1 Error codes displayed on the LCD. ......................................................................................... 117
13.2 Error codes stored in the Error Logger ................................................................................... 118
13.3 Central Heating Fault Finding Table ....................................................................................... 119
13.4 Domestic Hot Water Fault Finding Table ................................................................................ 120
14
SPARES ........................................................................................................................ 121
14.1 RDB 2.2 BX Spares ................................................................................................................ 121
14.2 RDB 3.2 BX Spares ................................................................................................................ 123
14.3 Baffles - from September 2016 Manufacture ......................................................................... 125
14.4 Short Parts List ....................................................................................................................... 126
15
YOUR GUARANTEES, TERMS & CONDITIONS ......................................................... 127
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