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AIC NESTA 300 - User Manual

AIC NESTA 300
92 pages
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EN
installation
and maintenance
manual
FOR THE INSTALLER AND THE USER
300 kW
FLOOR — STANDING CONDENSING BOILER
A-136280 • A
NESTA

Table of Contents

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Summary

General Information

Liabilities of Manufacturer, Installer, and End User

Explains responsibilities and liabilities of parties involved in installation and use.

Manufacturer Responsibilities

Details manufacturer's responsibilities, product quality, and right to modify.

Installer Responsibilities

Defines installer's responsibilities for correct installation, commissioning, and user guidance.

End User Responsibilities

Outlines user's responsibilities for safe operation, maintenance, and documentation.

Manual and Symbol Information

About this Manual

Information about the manual's purpose and importance for safe operation.

Symbols in this Manual

Explains safety and information symbols used within the manual for clear understanding.

Symbols on the Appliance

Shows and describes symbols found on the appliance itself for safety and identification.

Symbols on the Packaging

Displays and explains symbols found on the product packaging for handling and transport.

Safety Instructions

Boiler Marking and Package Contents

Boiler Marking

Details information found on the boiler's data plate and conversion sticker for identification.

Package Contents

Lists the items included in the product package for the user and installer.

Nesta 300 Product Description

General Description

Describes the boiler's construction, burner, heat exchanger, and capabilities.

Frost Protection

Explains the built-in anti-frost feature that protects the boiler from freezing.

Safety Devices

Lists the safety sensors and switches integrated into the boiler for operational safety.

Optional Equipment

Details optional accessories that can enhance the boiler's functionality and system integration.

Control Panel and Main Functions

Symbols and Messages on the Control Panel

Explains the meaning of symbols and messages displayed on the boiler's control panel.

Technical Specifications

Dimensions and Clearances

Lists the physical dimensions and required clearance space for boiler installation.

Connections

Details the types and sizes of connections for the boiler's various inputs and outputs.

Performance and Efficiency Data

Presents data on the boiler's heat input, output, and efficiency ratings for different gas types.

ErP Data

Provides Energy-related Products (ErP) data, including boiler type, heat output, efficiency, and consumption.

Combustion Data

Details combustion parameters like flue gas temperature, pressure, CO2, O2, and NOx levels.

Electrical Data

Specifies the boiler's electrical supply voltage, frequency, and protection class.

Gas Data

Lists gas types, pressures, flow rates, and country-specific gas categories supported by the boiler.

Hydraulic Data

Provides hydraulic specifications like water content, pressure drop, and operating pressures.

Pressure Drop Curve

Visualizes the relationship between flow rate and pressure drop in the system.

Flow Rate

States the minimum water flow rate required for the boiler's operation.

Instructions for the User

Safety Instructions for the User

Crucial safety instructions for users, covering gas leaks, electrical safety, and general operation.

Periodic Checks

Outlines regular checks users should perform to ensure safe and efficient boiler operation.

Disposal of Product at End of Service Life

Instructions on how to properly dispose of the product at its end of service life.

Starting the Appliance

Step-by-step instructions for safely starting the boiler after installation and commissioning.

Stopping the Appliance

Instructions on how to properly stop the boiler and completely cut off power supply.

Troubleshooting Common Issues

Guides users on how to address common problems like the boiler not starting or error codes displayed.

Basic Settings

Setting Comfort Mode Schedule

Instructions for programming the start and end times for comfort mode operation.

Setting Date and Time

Guide on how to set the correct date and time for the boiler's control system.

Language Selection

How to select the preferred language for the boiler's display and interface.

Unit Selection

How to choose between metric (°C, bar) and imperial (°F, PSI) units for display.

DHW Mode Activation;Deactivation

Instructions on how to turn the Domestic Hot Water (DHW) function on or off.

Structure of Menus for End User

Product Installation

Safety Instructions for Installation

Critical safety precautions for electrical, hydraulic, and flue connections during installation.

Handling the Product

Guidance on safe and proper methods for moving and handling the heavy boiler unit.

Unpacking the Product

Steps for safely removing the boiler from its packaging and preparing it for installation.

Installing and Preparing the Boiler

Instructions for positioning the boiler and making initial preparations before final connections.

Access Panel Removal and Installation

Procedures for removing and reinstalling the boiler's access panels for maintenance or setup.

Hydraulic Connections

Requirements for Hydraulic Connections

Details essential requirements for safety groups, expansion vessels, and water quality.

Water Quality Requirements

Guidelines for maintaining water quality to prevent scaling and corrosion in the heating system.

Water Parameters

Information on checking specific water parameters like conductivity, pH, and oxygen for treatment needs.

Hydraulic System Diagrams

Cascaded Boiler Diagrams

Shows hydraulic connections for cascaded boilers with external DHW tanks and plate heat exchangers.

Cascaded Boiler Diagrams with Low Loss Header

Illustrates hydraulic connections for cascaded boilers with external DHW tanks and low loss headers.

Chimney Connections

Safety Instructions for Chimney Connections

Safety guidelines for ensuring proper and safe flue gas and combustion air piping installation.

Pipe Installation Principles

General principles and recommendations for installing flue and air intake piping correctly.

Chimney Connection Types (Closed)

Describes different closed chimney connection types (C43, C53, C63, C83) and their requirements.

Chimney Connection Types (Open)

Explains open chimney connection types (B23, B23P) and air intake grid installation.

Engineering the Chimney System

Emphasizes the need for professional design of the chimney system according to regulations.

System Accessories

Information on optional accessories like flue gas dampers and condensate neutralisation systems.

Gas Connection

Safety Instructions for Gas Connection

Safety guidelines for gas type compatibility, pressure, and leak checks during connection.

Gas Conversion

Preparing for Gas Conversion

Steps to prepare the boiler, including accessing the gas valve and adjusting shutter position.

Fan Speed Adjustment

Combustion Adjustment

Combustion and Gas Values

Table of combustion parameters (CO2, O2) and gas values for reference during adjustment.

Electrical Connections

Safety Instructions for Electrical Connections

Critical safety rules for electrical work, including earthing, fuses, and avoiding wet conditions.

Electrical Connections Details

Details on wire cross-sections, sleeve usage, and terminal connections for electrical wiring.

Accessing Boiler Electronics

Accessing High Voltage Terminals

Instructions for safely accessing the high voltage terminal strip.

Routing Electrical Cables

Guidance on properly routing electrical cables through the appliance's panels.

Wiring Diagram

Commissioning

Safety Instructions Before Start-up

Essential safety checks and precautions to be taken before starting the boiler for the first time.

Filling the System

Step-by-step guide on how to fill the heating system with water and bleed air.

Start-up and Combustion Adjustments

Maintenance

Safety Instructions for Maintenance

Critical safety precautions for performing maintenance, including electrical isolation and component replacement.

Maintenance Requirements

A table outlining required inspection and maintenance tasks for yearly and bi-yearly intervals.

Shutting Down for Maintenance

Procedure for safely shutting down the boiler before performing maintenance tasks.

Draining the Boiler

Steps for safely draining the water from the boiler's heating circuit.

Cleaning Condensate Pipe and Trap

Detailed procedure for cleaning the condensate pipe and trap to prevent blockages.

Component Removal and Installation

Removing and Installing Fan and Air Adapter

Step-by-step instructions for removing and reinstalling the fan and air adapter assembly.

Removing and Installing Air-Gas Mixer

Procedure for removing and reinstalling the air-gas mixer component.

Removing and Installing Electrodes

Instructions for removing and reinstalling the ignition and ionization electrodes.

Removing and Installing the Burner

Procedure for removing and reinstalling the boiler's burner assembly.

Checking and Cleaning Combustion Chamber

Steps for inspecting and cleaning the combustion chamber for optimal performance.

Replacing Gas Valve Filter

Procedure for replacing the filter in the gas valve.

Checking Pressure Switches

Instructions for testing the operation of the flue gas and air pressure switches.

Additional Information for Installer

Optional Modules

Information on optional modules like Extension Modules, Cable Hub, Web Server, and Cascading Module.

Boilers in Cascade System

Explanation of how to connect multiple boilers in a cascade for increased heating power.

Boiler Settings for Installer

Access Levels

Explanation of the different access levels (EU, C, E) available for boiler settings.

Commissioning Menu

Information on the initial commissioning screen and its function.

Installer Menu Structure

Table detailing menus, submenus, and default settings for installer configuration.

Heating Circuit Settings

Specific settings related to heating circuits, including setpoints, curve slopes, and pump operation.

Boiler Fault and Service Settings

Settings related to boiler faults, service functions, and diagnostic data.

Error Codes and Solutions

Maintenance Messages

Lists maintenance messages, their meaning, and the required actions.

Troubleshooting

Installation Checklist

Controller and Miscellaneous Checks

Checklist items related to the controller, optional modules, and end-user documentation.

Log Sheets

Water Parameters Log Sheet

Form for recording water parameters, system pressure, and treatment details.

Gas Conversion Log Sheet

Log for recording details of gas conversion procedures performed on the appliance.

Declaration of Conformity

AIC NESTA 300 Specifications

General IconGeneral
BrandAIC
ModelNESTA 300
CategoryBoiler
LanguageEnglish

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