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Controls radiator temperature via boiler thermostat, user adjustable from 45°C to 75°C.
Resets the high limit thermostat (cut-off at 110°C) by pressing a button after removing cover.
Indicates burner failure to fire; red reset button illuminated. Limit resets to twice.
Details on checking and maintaining system pressure and using the filling loop.
Description of the Combi boiler control panel functions and settings.
All existing systems must be properly flushed to remove sediment/sludge to prevent blockages.
The heating system must be fully pumped; details condensate drain plumbing.
Visible plume from flue requires careful positioning to avoid nuisance.
Assess maximum hot water demand and verify mains supply capability.
Ensure borehole pressure is stable and check mains water hardness.
Ensure hot water outlet flows do not exceed capacity and showers are compatible.
Overview of appliance testing, compliance with regulations, fuel type, and system compatibility.
Installation must comply with BS5410, BS5449, BS7593, and current Building/IEE Regulations.
DHW priority, heat store recovery, pump overrun, and baffle placement for Combi boilers.
Diagrams illustrating casing and key components for B-Series, U-Series, and K-Series boilers.
Visual representation of the boiler's operational sequence for Combi models.
Detailed dimensional drawings and tables for B-Series and U-Series models.
Guidance on the correct installation and connection of the condensate trap and drainage pipe.
Comprehensive technical specifications for B-Series Boilerhouse models, including output, burner, and settings.
Wiring diagrams for Dual-Safe thermostat and RDB burner control box.
Wiring diagrams specific to Combi boiler models, detailing component connections.
Step-by-step guide for installing the optional PC1 programmer into Combi boilers.
Instructions for installing remote timers and optional programmers for Combi and Non-Combi models.
Diagrams and pipe length calculations for one-pipe gravity, two-pipe, and lift systems.
Schematic of de-aerator system and guidance for using Bio Fuel.
Overview of available flue kits and guidelines for conventional flue installation.
Details on condensing boiler flue kits and installation for balanced flue types.
Components and installation for flexible flue liner and plume management kits.
Method for calculating flue length and minimum distances for terminal positions.
Ventilation requirements for open flue boilers sited in cellars or compartments.
Air supply requirements for balanced flue boilers installed in compartments.
Installation must comply with BS5410 : PART 1 and Building Regulations, covering hearth, access, and system.
Details on expansion vessel sizing, system filling, pressure, and relief valves for sealed systems.
Information on mains water pressure, hardness, flow restrictors, and borehole supplies for Combi DHW.
Diagrams and identification of RDB burner components and oil pump.
Guidance on electrode setting, start-up cycle, and air damper adjustment.
Procedures and requirements for commissioning the boiler by an OFTEC registered technician.
Requirements for annual servicing, including checks on components and inhibitor levels.
Flowchart for diagnosing and resolving faults specific to the Riello RDB burner.
Troubleshooting flowchart for central heating issues in Combi boilers.
Troubleshooting flowchart for domestic hot water issues in Combi boilers.
Guide to setting up and using the digital timer, including modes and programme periods.
Exploded views and parts lists for RDB 2.2 and RDB 3.2 burners.
Diagrams for pipe spares and a consolidated list of common boiler parts.
Details on the warranty period, scope, and exclusions for Warmflow boilers.
Requirements for maintaining warranty, including installation, commissioning, and servicing by qualified personnel.
General