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Baxi Bermuda BBU 15 HE User Manual

Baxi Bermuda BBU 15 HE
44 pages
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© Baxi Heating UK Ltd 2009
Baxi Bermuda BBU 15 HE
Condensing Back Boiler Unit
These Instructions must be read in conjunction with those for
the separate Valor Dimension electric firefront.
They include the Benchmark Commissioning Checklist
and should be left with the user for safe keeping.
Installation & Servicing Instructions
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Baxi Bermuda BBU 15 HE Specifications

General IconGeneral
Output15 kW
ErP Space Heating Efficiency ClassA
Fuel TypeNatural Gas
NOx Class5
Weight32 kg
MountingWall-mounted
CH Output (kW)15
Efficiency90%

Summary

Installer Notification Guidelines

Legislation

Safe Manual Handling

General

Provides general advice on handling the boiler and safety responsibilities.

Preparation

Details pre-handling steps including coordination and route planning.

Technique

Explains proper lifting and handling techniques to prevent injury.

Working at Height

Covers safety regulations and guidance for tasks performed at height.

1.0 Introduction

1.1 Description

Describes the boiler's purpose, type, output, and compatibility.

1.2 Contents

Lists items included in the boiler and flue packs.

2.0 General Layout

2.1 Layout (Fig. 3)

Identifies key components of the boiler using a labelled diagram.

3.0 Technical Data

3.1 Bermuda HE CBBU 15 HE

Provides detailed specifications and performance data for the boiler model.

4.0 System Details

4.1 Water Circulating Systems

Outlines requirements and conditions for water circulation systems.

4.2 Treatment of Water Circulating Systems

Details system flushing and inhibitor requirements to prevent corrosion.

4.3 Pipework

Specifies pipework guidelines and recommendations for system connections.

4.4 System Controls

Describes necessary system control components like timers and thermostats.

4.5 Fully Pumped Open Vent System

Provides guidance for installations using fully pumped open vent systems.

4.6 Storage Systems

Advises consulting manufacturers for storage system integration.

4.7 Sealed Systems (Figs. 6, 7 & 8)

Details requirements for sealed central heating systems, including pressure relief.

5.0 Site Requirements

5.1 Builders Opening

Specifies dimensions and conditions for the installation opening.

5.2 Location

Defines acceptable locations for boiler installation, excluding bathrooms.

5.3 Fireplace Opening & Surround

Details requirements for fireplace openings and surrounds.

5.4 Firefront Frame Extension Kit

Explains the use of extension kits for firefront fitting.

5.5 Flue

Provides guidelines for flue installation, height, and positioning.

5.6 Ventilation

States no specific ventilation is required for the boiler room.

5.7 Gas Supply

Details gas supply installation requirements, pipework, and routing.

5.8 Electrical Supply

Outlines electrical connection standards and safety notes.

5.9 Condensate Drain - General

Specifies general requirements for condensate discharge pipework.

5.10 Condensate Disposal (Fig. 12)

Explains the condensate disposal system and routing options.

5.11 Condensate Pump Operation

Condensate pump function, safety features, and sump volume.

6.0 Boiler Internal Wiring

6.1 Boiler Internal Illustrated Wiring Diagram

Provides a detailed wiring diagram of the boiler's internal components.

7.0 Installation

7.1 Initial Preparation

Outlines initial steps before installing the boiler and flue.

7.2 Flue System

Details requirements and steps for installing the flue system.

7.3 Siting the Boiler

Instructions for lifting, positioning, and securing the boiler.

7.4 Water Connections

Connecting flow and return water pipes correctly.

7.5 Gas Connection

Requirements for connecting the gas supply pipe.

7.6 Electrical Connection

Electrical connection requirements and safety warnings.

7.7 Making the Electrical Connection

Connecting the plug and wiring to the boiler.

8.0 Completion & Commissioning

8.1 Completion

Final sealing and connecting the boiler control.

8.2 Commissioning the Boiler

Steps for commissioning the boiler after installation.

9.0 Annual Servicing

9.1 Annual Servicing

Recommends annual servicing and outlines checks for safety and performance.

9.2 Annual Servicing - Inspection

Detailed steps for inspecting boiler components during annual servicing.

10.0 Changing Components

10.1 Changing Components

General advice before changing any boiler components.

10.2 Spark Generator

Instructions for removing and replacing the spark generator.

10.3 Electrode Assembly

Instructions for removing and replacing the electrode assembly.

10.4 Condensate Pump

Instructions for removing and replacing the condensate pump.

10.5 Fan

Instructions for removing and replacing the fan assembly.

10.6 Burner

Instructions for removing and replacing the burner.

10.7 Injector

Instructions for removing and replacing the injector.

10.8 Gas Valve

Instructions for replacing the gas valve, including CO2 adjustment.

10.9 PCB

Instructions for replacing the Printed Circuit Board (PCB).

10.10 NTC

Instructions for replacing the NTC temperature sensor.

10.11 Safety Thermostat

Instructions for replacing the safety thermostat.

10.12 Float Switches

Instructions for removing and replacing the float switches.

11.0 Setting the Gas Valve

11.1 Setting the Gas Valve (CO2 check)

Procedure for setting the gas valve and checking CO2 levels.

12.0 Fault Finding

12.1 Initial Fault Finding Checks

Lists basic checks to perform when troubleshooting boiler issues.

12.2 Error Codes

Explains common error codes displayed by the boiler.

Operational Sequence Flowchart

Troubleshooting flowchart based on operational sequences.

Fault Finding Solutions Sections A-G

Specific fault-finding steps for various error conditions.

Fault Finding Solutions Sections H-L

Detailed fault-finding steps for additional error conditions.

13.0 Short Parts List

14.0 Notes

Warranty and Service

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