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General| Model | Main Combi 25 Eco Elite |
|---|---|
| Output | 25kW |
| DHW Flow Rate | 10.2 l/min |
| Mounting | Wall Mounted |
| Max. Working Pressure | 3 bar |
| Fuel Type | Natural Gas |
| ERP Rating | A |
| DHW Output (kW) | 25 kW |
| Central Heating Flow Temperature Range | 30 - 80 °C |
| Boiler Type | Combination Boiler |
General overview of the boiler and its capabilities.
Lists all items included in the boiler packaging.
Diagram and list of main components within the boiler.
Explains boiler operation for heating.
Explains boiler operation for hot water.
Details the frost protection feature.
Describes the pump protection mechanism.
Detailed technical specifications for boiler models.
Boiler approval and water byelaws.
Requirements for central heating systems.
Boiler's integral bypass function.
Options for external system controls.
Instructions for filling and pressurising.
Details on the expansion vessel.
Information on the pressure relief valve.
Requirements for domestic hot water systems.
Recommendations for shower controls.
Considerations for hard water installations.
Guidelines for selecting the boiler's installation site.
Required space around the boiler for installation.
Ventilation rules for boiler compartments.
Requirements for the gas supply connection.
Requirements for electrical connection and safety.
Specific installation rules for bathrooms.
Crucial installation steps for the condensate drain.
Guidelines for flue terminal positioning.
Details on installing horizontal flue configurations.
Explains twin and vertical flue system installations.
Lists available flue components and part numbers.
Connecting a twin flue system.
Engaging the twin flue adaptor.
Instructions for roof flue installations.
Specifies flue length limits.
Instructions for fitting the flue trim.
Guidance on using terminal guards.
How to fit a flue deflector.
Information on the plume displacement kit.
Calculating permissible flue lengths.
Fitting instructions for the plume displacement system.
Steps for unpacking and preparing the boiler.
Instructions for flushing the heating system.
Steps for physically mounting the boiler.
Connecting the PRV discharge pipe.
Connecting the condensate drain pipe.
Installing the horizontal flue.
Installing the vertical flue.
Wiring the boiler and external controls.
Essential electrical checks before commissioning.
General steps for boiler commissioning.
Mandatory procedure for checking combustion.
Setting and checking gas pressure and rate.
Final handover and user instructions.
Recommended schedule for annual service.
Detailed inspection steps during servicing.
Procedure for replacing the igniter.
Procedure for replacing the electrode assembly.
Steps for replacing the fan.
Procedure for replacing the injector.
Steps for replacing the burner.
Procedure for replacing insulation.
Steps for replacing the safety thermostat.
Procedure for replacing CH sensor.
Steps for replacing the water pressure sensor.
Procedure for replacing DHW sensor.
Steps for replacing air vent.
Procedure for replacing the pump head.
Steps for replacing the entire pump.
Procedure for replacing pump's air vent.
Steps for replacing the pressure gauge.
Procedure for replacing the Hall effect sensor.
Steps for replacing the pressure relief valve.
Procedure for replacing the plate heat exchanger.
Steps for replacing the diverter valve.
Procedure for replacing the main circuit board.
Steps for replacing the selector switch.
Procedure for replacing the gas valve.
Steps for replacing the expansion vessel.
Adjusting the gas valve for optimal CO2.
Visual representation of electrical connections.
List of key spare parts with manufacturer part numbers.
Basic checks before diagnosing issues.
Explanation of boiler error codes.
Step-by-step guidance for resolving specific faults.
Checklist section for boiler controls.
Checklist section for system checks.
Checklist section for CH mode measurements.
Checklist section for combi boilers.
Checklist section for condensing boilers.
Checklist section for general installation checks.
Forms for recording service history.
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