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Outlines the Benchmark Scheme's purpose, responsibilities, and benefits for customers.
Details requirements for notifying installations and using certified schemes.
Describes the process for installers using self-certification schemes.
Explains the alternative route via Local Authority Building Control.
Lists relevant UK and IE regulations and standards for installation.
References specific British and Irish Standards for gas and heating systems.
Basic safety guidelines for handling the boiler.
Steps for safe lifting and moving the boiler.
Final safety reminders before and during handling.
Details the boiler's features, output, and intended use.
Lists all items included in the boiler packaging.
Provides a labelled diagram of the boiler's internal parts.
Describes normal heating, hot water, and pump overrun functions.
Explains how the boiler prevents freezing in cold conditions.
Details the automatic pump operation to prevent seizing.
Provides technical data including heat input, output, and pressures.
Lists physical dimensions and required installation clearances.
Specific measurements for the boiler and fixing points.
Details on how and where to fix the boiler.
Guidance on water treatment and system preparation.
Explanation of the boiler's automatic bypass.
How to connect and control the boiler with external devices.
Procedure for filling and pressurising the heating system.
Details on the role and capacity of the expansion vessel.
Information on the pressure relief valve and discharge pipe.
Recommendations for siting the boiler for optimal performance and safety.
Specifies minimum clearances around the boiler for access and airflow.
Requirements for installing the boiler in cupboards or enclosures.
Details on gas pipe size, connection, and pressure.
Information on mains voltage, fused supply, and connection methods.
Electrical safety zone requirements for wet rooms.
Guidelines for routing and terminating the condensate drain pipe.
Rules for positioning the flue terminal relative to openings and boundaries.
Details on standard and concentric horizontal flue configurations.
Information on twin pipe and vertical flue installations.
Lists available flue extension kits, bends, and supports.
Specifics on using the twin flue adaptor and making connections.
Instructions for flue terminals on pitched roofs, flat roofs, and walls.
Details the kit's contents and when it is recommended.
Explains how to calculate flue lengths with extensions and bends.
Step-by-step guidance for installing the plume displacement system.
Steps for safely unpacking and preparing the boiler before installation.
Instructions for flushing the heating system before connecting the boiler.
Guidance on lifting, positioning, and securing the boiler.
How to connect and route the pressure relief valve discharge pipe.
Instructions for connecting the condensate drain outlet.
Step-by-step guide for installing a horizontal flue system.
Instructions for installing a vertical flue system.
How to make external control and mains electrical connections.
Essential electrical checks before commissioning.
Detailed procedure for filling, pressurising, and initial checks.
How to verify the gas pressure at the boiler inlet.
Procedure for measuring the boiler's gas consumption.
Guidance on explaining operation and controls to the user.
Final steps for completing installation documentation.
Recommendations for annual servicing and safety checks.
Specific points to check during the annual service.
Steps for safely replacing the igniter unit.
How to replace the ignition and flame sensing electrodes.
Procedure for removing and replacing the boiler fan.
Steps for changing the gas injector.
How to replace the burner assembly.
Procedure for replacing internal insulation.
How to replace the safety thermostat.
Replacing central heating and DHW temperature sensors.
Steps for replacing the water pressure sensor.
How to replace the system pressure gauge.
Procedure for replacing the pressure relief valve.
How to replace the main control printed circuit board.
Steps for replacing the appliance selector switch.
How to safely replace the gas valve.
Procedure for replacing the system expansion vessel.
Step-by-step guide for adjusting the gas valve for optimal combustion.
Visual representation of the boiler's electrical connections.
A list of common replacement parts with manufacturer part numbers.
Basic checks to perform before diagnosing faults.
Explanation of boiler error codes displayed on the fascia.
A diagnostic flowchart for central heating operational faults.
Troubleshooting steps for electrical supply and wiring issues.
Troubleshooting steps for pump and PCB related faults.
Troubleshooting steps for system pressure and switch issues.
Troubleshooting steps for fan issues.
Troubleshooting steps for temperature sensor and PCB faults.
Troubleshooting steps for gas valve and burner issues.
Troubleshooting steps for electrode and ignition issues.
Troubleshooting steps for gas supply and flame sensing issues.
Troubleshooting steps for overheat thermostat faults.
Troubleshooting steps for electrical supply and pump issues.
Troubleshooting steps for fan connection issues.
Troubleshooting steps for sensor and heat exchanger issues.
Covers controls, system prep, heating, DHW, condensing, and installation checks.
Fields for recording service engineer and company details.
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