Page
Contents
Page
User Instructions
.....................................................................................................................................................................2
Combi Boiler Pre-Installation Requirements
........................................................................................................................4
1.0
General Information
.
Introduction .....................................................................................................................................................5
.2
General Requirements .....................................................................................................................................5
.3
Combi General Requirements ..........................................................................................................................6
.4
Baffle Positioning .............................................................................................................................................6
.5
Components ...................................................................................................................................................7
2.0
Technical Details
2.
Combi Sequence of Operation Flow Chart ....................................................................................................7
2.2
Dimensions ...................................................................................................................................................8
2.3
Flue Options & Dimensions ............................................................................................................................23
2.4
Technical Data ...............................................................................................................................................24
3.0
Electricity Supply & Wiring Details
3.
Dual-Safe Thermostat (Non-Combi Models) ..................................................................................................33
3.2
RDB Burner Control Box ...............................................................................................................................33
3.3
Combi Wiring Details .....................................................................................................................................34
3.4
Installation of a Warmflow Combi Optional Programmer (PC) .......................................................................37
3.5
Remote Timers for Combis ............................................................................................................................38
3.6
Optional Programmer (PU) for Non-Combi Models ......................................................................................39
4.0
Oil Supply
4.
One Pipe Gravity System ...............................................................................................................................43
4.2
Two Pipe System ...........................................................................................................................................44
4.3
De-aerator System ........................................................................................................................................44
4.4
One Pipe Lift System .....................................................................................................................................45
5.0
Flues
5.
Installation of Balanced Flues.........................................................................................................................46
5.2
Conventional Flues ........................................................................................................................................48
5.3
Low Level Balanced Flue Terminal Positions ..................................................................................................48
6.0
Air Supply for Combustion & Ventilation
6.
Open Flue Boilers ..........................................................................................................................................50
6.2
Balanced Flue Boilers – Boilers in a Compartment .........................................................................................50
7.0
Installation Requirements
7.
General Requirements ...................................................................................................................................5
7.2
Sealed Systems ............................................................................................................................................52
7.3
Combi Domestic Hot Water ...........................................................................................................................53
8.0
Burners
8.
RDB Burner ...................................................................................................................................................54
8.2
Oil Pump .......................................................................................................................................................54
8.3
Electrode Setting ...........................................................................................................................................55
8.4
Burner Start-Up Cycle ...................................................................................................................................55
8.5
Air Damper Adjustment .................................................................................................................................55
9.0
Commissioning & Servicing
9.
Commissioning..............................................................................................................................................56
9.2
Servicing .......................................................................................................................................................56
10.0
Burner Fault Finding
0.
Riello RDB .....................................................................................................................................................57
11.0
Combi Fault Finding
.
Central Heating .............................................................................................................................................58
.2
Domestic Hot Water ......................................................................................................................................59
12.0
Optional Boiler Mounted Digital Timer
2.
Operating Instructions ...................................................................................................................................60
13.0
Spares
3.
RDB 2.2 Spares ............................................................................................................................................64
3.2
Pipe Spares ...................................................................................................................................................65
3.3
Short Parts List – Boiler .................................................................................................................................67
14.0
Your Guarantee, Terms & Conditions
.....................................................................................................................68
Commissioning/Service Record
.............................................................................................................................69
Summary of Contents for B-Series B70
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