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Declares the appliance's compliance with the Pressure Equipment Directive.
Explains the CE marking and describes the boiler's data plate.
Details technical specifications, dimensions, and performance data for the boiler.
Lists the key technical specifications and features of the DUA plus boiler models.
Presents detailed physical dimensions and diagrams for boiler installation.
Illustrates the hydraulic circuits of different DUA plus boiler models.
Provides operational data including efficiency, emissions, and consumption figures.
Outlines general technical specifications like boiler category, pressure limits, and power supply.
Specifies the required environmental and regulatory conditions for boiler installation.
Covers boiler installation, including positioning and handling of packaging.
Guides on the correct placement and mounting of the boiler using a jig.
Provides instructions for assembling the boiler and connecting its components.
Details ventilation needs for different boiler types and installation scenarios.
Explains methods and requirements for flue gas evacuation.
Covers configurations for smoke discharge and air suction ducts for various boiler types.
Outlines the requirements and procedures for connecting the gas supply to the boiler.
Details the procedures for making hydraulic connections for heating and DHW.
Covers the necessary electrical connections and safety precautions for the boiler.
Shows the detailed electrical wiring diagram for the boiler, including component identification.
Provides general guidelines and access information for electrical connections.
Details accessing the modulating PCB and replacing the supply cable.
Explains how to connect room thermostats and external sensors.
Explains the purpose and positioning of jumpers for boiler configuration.
Lists resistance values for temperature sensors at different temperatures.
Guides on the proper procedure for filling the heating system with water.
Outlines preliminary checks and procedures for safely starting the boiler.
Provides detailed steps for adjusting the burner's maximum and minimum output.
Details the process for converting the boiler to use different types of gas.
Lists specifications for nozzles, pressures, and gas flow rates for different gas types.
A guide to diagnose and resolve common boiler faults using error codes.
Describes the functions of the control panel board, including selectors and knobs.
Explains the various indicators, lamps, buttons, and readings on the boiler's control panel.
Details the steps for igniting, operating in different modes, and extinguishing the boiler.
Offers important advice on maintenance, frost protection, and user information.
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General