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Details on gas safety regulations and installer responsibilities for safe operation.
Overview of requirements for installing, commissioning, servicing, and repairing the boiler.
Requirements for natural gas supply, pipework size, and standards compliance.
Specifications for the electrical supply, wiring, and safety precautions.
Information on room-sealed flue systems and component options.
Step-by-step guide for physically installing the boiler unit.
Instructions for connecting the boiler's flue system.
Procedure for connecting the natural gas supply to the boiler.
Procedure for fitting and routing the condensate drain pipe.
Steps for connecting the mains water, expansion vessel, and relief valves.
Procedure for connecting the boiler's electrical power supply.
Step-by-step guide for connecting the boiler's electrical supply and controls.
Detailed steps for commissioning the boiler, including air vents and system filling.
Checks for unvented hot water system components and safety devices.
Steps for filling and venting a sealed primary system.
Verification steps for gas rate, CH system, and DHW system.
Steps for checking and balancing the central heating system.
Routine annual maintenance procedures for the boiler.
Procedure for testing combustion gases (CO2) and acceptable values.
Steps for safely removing and replacing the gas valve.
Detailed steps for disconnecting and replacing the heat exchanger.
Procedure for setting up the gas/air valve and checking CO2 levels.
Diagrams illustrating the boiler's electrical connections and functional flow.
Basic checks to perform before diagnosing boiler faults.
List of error codes displayed by the boiler and their meanings.
Step-by-step guide for troubleshooting central heating operational issues.
Step-by-step guide for troubleshooting domestic hot water operational issues.
Troubleshooting steps for 230V supply issues and fuse checks.
Troubleshooting ignition electrode, spark gap, and igniter issues.
Form for recording commissioning data to demonstrate compliance.
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General