Potterton Gold HE A Range Montage- und Wartungsanleitung

Installation & Service Instructions

These instructions include the Benchmark Commissioning

Checklist and should be left with the user for safe keeping.

Gold HE A

Range

Condensing

Combination Boiler

You can rely on

2© Baxi Heating UK Ltd 2012

Natural Gas

Potterton Gold Combi 24 HE A

G.C.No47 393 18

Potterton Gold Combi 28 HE A

G.C.No47 393 19

Potterton Gold Combi 33 HE A

G.C.No47 393 20

Building Regulations and the Benchmark Commissioning

Checklist

Building Regulations (England & Wales) require notification of

the installation of a heating appliance to the relevant Local

Authority Building Control Department. From 1 April 2005 this

can be achieved via a Competent Persons Self Certification

Scheme as an option to notifying the Local Authority directly.

Similar arrangements will follow for Scotland and will apply in

Northern Ireland from 1 January 2006.

The Health & Safety Executive operates the ‘Gas Safe Register’,

a self-certification scheme for gas heating appliances.

These arrangements represent a change from the situation

whereby compliance with Building Regulations was accepted as

being demonstrated by completion of the Benchmark Logbook

(which was then left on site with the customer).

With the introduction of Self Certification Schemes, the

Benchmark Logbook is being withdrawn. However, a similar

document in the form of a commissioning checklist and service

interval record is incorporated at the back of these instructions.

This company is a member of the Benchmark initiative and fully

supports the aims of the programme. Its aim is to improve the

standards of installation and commissioning of central heating

systems in the UK and to encourage the regular servicing of all

central heating systems to ensure safety and efficiency.

Building Regulations require that installations should comply

with manufacturer's instructions. It is therefore important that

the commissioning checklist is completed by the installer. The

relevant section of Building Regulations only relates to

dwellings. Therefore the checklist only applies if the appliance is

being installed in a dwelling or some related structure.

The flowchart opposite gives guidance for installers on the

process necessary to ensure compliance with Building

Regulations.

be reproduced or transmitted in any form or by any means, or stored in any

retrieval system of any nature (including in any database), in each case whether

electronic, mechanical, recording or otherwise, without the prior written

permission of the copyright owner, except for permitted fair dealing under

Copyrights, Designs and Patents Act 1988.

Applications for the copyright owner’s permission to reproduce or make other

use of any part of this publication should be made, giving details of the proposed

use, to the following address:

The Company Secretary, Baxi Heating UK Ltd,

Brooks House, Coventry Road, Warwick. CV34 4LL

Full acknowledgement of author and source must be given.

WARNING: Any person who does any unauthorised act in relation to a

0086

ISO 9001

FM 00866

The Benchmark Scheme

Benchmark places responsibilities on both manufacturers and installers. The

purpose is to ensure that customers are provided with the correct equipment for

their needs, that it is installed, commissioned and serviced in accordance with the

manufacturer’s instructions by competent persons and that it meets the

requirements of the appropriate Building Regulations. The Benchmark Checklist

can be used to demonstrate compliance with Building Regulations and should be

provided to the customer for future reference.

Installers are required to carry out installation, commissioning and servicing work

in accordance with the Benchmark Code of Practice which is available from the

Heating and Hotwater Industry Council who manage and promote the Scheme.

Visit www.centralheating.co.uk for more information.

Installer Notification Guidelines

Choose Building

Regulations Notification

Route

Contact your relevant Local

Authority Building Control

(LABC) who will arrange

an inspection or contact

a government approved

inspector

LABC will record the data

and will issue a

certificate of compliance

‘Gas Safe Register’ will issue a

Building Regulations Compliance

Certificate to the property owner

and inform the relevant LABC

You must ensure that the

certificate number issued by

the ‘Gas Safe Register’ is written

onto the Benchmark Checklist

Scheme Members only

Call ‘Gas Safe Register’ on:

0800 408 5577

or log onto:

www.gassaferegister.co.uk

within 10 days

If you notify via the ‘Gas Safe

the Building Regulations

certificate on members’ behalf

Complete the

Benchmark Checklist

Install and Commission this

appliance to manufacturer's

instructions

Competent Person's

Self Certification Scheme

Building Control

Complete the

Benchmark Checklist

Install and Commission this

appliance to manufacturer's

instructions

Legislation

Codes of Practice - refer to the most recent version

IMPORTANT - Installation, Commissioning, Service & Repair

This appliance must be installed in accordance with the manufacturer’s instructions and

the regulations in force. Read the instructions fully before installing or using the

appliance.

In GB, this must be carried out by a competent person as stated in the Gas Safety

(Installation & Use) Regulations.

Definition of competence: A person who works for a Gas Safe registered company

and holding current certificates in the relevant ACS modules, is deemed competent.

In IE, this must be carried out by a competent person as stated in I.S. 813 “Domestic

Gas Installations”.

The addition of anything that may interfere with the normal operation of the appliance

without express written permission from the manufacturer or his agent could invalidate

the appliance warranty. In GB this could also infringe the Gas Safety (Installation and

Use) Regulations.

Warning - Check the information on the data plate is compatible with local supply

conditions.

This company declare that no substances harmful to health

are contained in the appliance or used during appliance

manufacture.

The appliance is suitable only for installation in GB and IE and

should be installed in accordance with the rules in force, and

only used in a suitably ventilated location.

In GB, the installation must be carried out by a Gas Safe

Registered Installer. It must be carried out in accordance with

the relevant requirements of the:

• Gas Safety (Installation & Use) Regulations.

• The appropriate Building Regulations either The Building

Regulations, The Building Regulations (Scotland), Building

Regulations (Northern Ireland).

• The Water Fittings Regulations or Water Byelaws in

Scotland.

• The Current I.E.E. Wiring Regulations.

Where no specific instructions are given, reference should be

made to the relevant British Standard Code of Practice.

In IE, the installation must be carried out by a competent

Person and installed in accordance with the current edition of

I.S. 813 ‘Domestic Gas Installations’, the current Building

Regulations and reference should be made to the current ETCI

rules for electrical installation.

All systems must be thoroughly flushed and treated with

inhibitor (see section 6.2).

In GB the following Codes of Practice apply:

Standard Scope

BS 6891 Gas Installation.

BS 5546 Installation of hot water supplies for domestic

purposes.

BS EN 12828 Heating systems in buildings.

BS EN 14336 Installation & commissioning of water based

heating systems.

BS 6798 Installation of gas fired hot water boilers.

BS 5440 Part 1 Flues.

BS 5440 Part 2 Ventilation.

BS 7074 Expansion vessels and ancillary equipment for

sealed water systems.

BS 7593 Treatment of water in domestic hot water

central heating systems.

In IE the following Codes of Practice apply:

Standard Scope

I.S. 813 Domestic Gas Installations.

The following standards give valuable additional information;

BS 5546 Installation of hot water supplies for domestic

purposes.

BS EN 12828 Heating systems in buildings.

BS EN 14336 Installation & commissioning of water based

heating systems.

BS 7074 Expansion vessels and ancillary equipment for

sealed water systems.

BS 7593 Treatment of water in domestic hot water

central heating systems.

The boiler meets the requirements of Statutory Instrument “ The Boiler (Efficiency)

Regulations 1993 No3083” and is deemed to meet the requirements of Directive

92/42/EEC on the energy efficiency requirements for new hot water boilers fired with

liquid or gaseous fuels:-

Type test for purpose of Regulation 5 certified by:

Notified Body 0085.

Product/Production certified by:

Notified Body 0086.

For GB/IE only.

All Gas Safe registered engineers carry an ID card with their licence number and a

photograph. You can check your engineer is registered by telephoning

0800 408 5500 or online at www.gassaferegister.co.uk

Safe Manual Handling

General

The following advice should be adhered to, from when first handling the boiler to the final stages of installation, and also during maintenance.

Most injuries as a result of inappropriate handling and lifting are to the back, but all other parts of the body are vulnerable, particularly shoulders, arms and hands.

Health & Safety is the responsibility of EVERYONE.

There is no ‘safe’ limit for one man - each person has different capabilities. The boiler should be handled and lifted by TWO PEOPLE.

Do not handle or lift unless you feel physically able.

Wear appropriate Personal Protection Equipment e.g. protective gloves, safety footwear etc.

Preparation

Co-ordinate movements - know where, and when, you are both going.

Minimise the number of times needed to move the boiler - plan ahead.

Always ensure when handling or lifting the route is clear and unobstructed. If possible avoid steps, wet or slippery surfaces, unlit areas etc. and take special care

on ladders/into lofts.

Technique

When handling or lifting always use safe techniques - keep your back straight, bend your knees. Don’t twist - move your feet, avoid bending forwards and

sideways and keep the load as close to your body as possible.

Where possible transport the boiler using a sack truck or other suitable trolley.

Always grip the boiler firmly, and before lifting feel where the weight is concentrated to establish the centre of gravity, repositioning yourself as necessary. See the

‘Installation’ section of these instructions for recommended lift points.

Remember

The circumstances of each installation are different. Always asses the risks associated with handling and lifting according to the individual conditions.

If at any time when installing the boiler you feel that you may have injured yourself STOP !!

DO NOT ‘work through’ the pain - you may cause further injury.

IF IN ANY DOUBT DO NOT HANDLE OR LIFT THE BOILER - OBTAIN ADVICE OR ASSISTANCE BEFORE PROCEEDING !!

6© Baxi Heating UK Ltd 2012

CONTENTS

1.0 Introduction 7

2.0 General Layout 8

3.0 Appliance Operation 9

4.0 Technical Data 10

5.0 Dimensions and Fixings 11

6.0 System Details 12

7.0 Site Requirements 15

8.0 Flue Options 19

9.0 Plume Displacement 24

10.0 Installation 28

11.0 Commissioning 34

12.0 Completion 37

13.0 Servicing 38

14.0 Changing Components 40

15.0 Setting the Gas Valve 49

16.0 Electrical 50

17.0 Short Parts List 51

18.0 Fault Finding 52

Benchmark Checklist 58

Section Page

1.0 Introduction

1.1 Description

1. The Potterton Gold Combi HE Ais a fully automatic gas

fired wall mounted condensing combination boiler. It is room

sealed and fan assisted, and will serve central heating and

mains fed domestic hot water.

2. The boiler is set to give a maximum output of :-

24 models - 24 kW DHW

21 kW CH (Condensing)

28 models - 28 kW DHW

25.9 kW CH (Condensing)

33 models - 33 kW DHW

30.3 kW CH (Condensing)

3. It is designed for use on Natural Gas (G20).

4. The boiler is suitable for use only on fully pumped sealed

heating systems. Priority is given to domestic hot water.

5. The boiler is supplied with a filling loop and integral timer.

6. The boiler data badge gives details of the model, serial

number and Gas Council number and is situated on the inner

door panel. It is visible when the case front panel is removed

(Fig. 1).

7. The boiler model name and serial number are also shown

on the information label on the rear or the lower door panel.

This is for user reference.

8. The boiler is intended to be installed in residential /

commercial / light industrial E.M.C. environments on a

governed meter supply only.

9. The boiler must be installed with one of the purpose

designed flues such as the standard horizontal flue kit, part no.

5118489.

9. All systems must be thoroughly flushed and treated with

inhibitor (see section 6.2).

1.2 Contents of Pack

1. Boiler Unit

2. Wall Plate (inc. taps)

3. Set of Pipes (inc. nuts)

4. Template & Quick Fit Guide

5. Timer Blanking Plate Kit

6. Literature Pack

7. Filling Loop

Fig. 1

Lower Door

Panel

Case Front Panel

Data Badge

Information Label

2.0 General Layout

2.1 Layout

1. Expansion Vessel

2. Automatic Air Vent

3. DHW Plate Heat Exchanger / Automatic Bypass

4. Circulation Pump

5. Drain Off Point

6. Safety Pressure Relief Valve

7. Optional Integral Timer Position

8. Central Heating System Pressure Gauge

9. PCB

10. Control Box

11. 3-Way Valve Assembly

12. Condensate Trap

13. Flame Sensing Electrode

14. Spark Electrode

15. Primary Heat Exchanger

16. Fan Assembly

17. On/Off/Reset Selector Switch

18. Central Heating Temperature Control

19. Hot Water Temperature Control

20. Venturi

21. Air/Gas Collector

22. Combustion Box Cover & Burner

23. Igniter

24. Burner On Light

25. Central Heating Mode Light

26. Domestic Hot Water Mode Light

27. Display

28. Integral Timer

17 18 19 8

Reset

bar

25 26

27 28

3.0 Appliance Operation

3.1 Central Heating Mode (Fig. 2)

1. With a demand for heating, the pump circulates water

through the primary circuit.

2. Once main burner ignites the fan speed controls the gas

rate to maintain the heating temperature measured by the

temperature sensor.

3. When the flow temperature exceeds the setting

temperature, a 3 minute delay occurs before the burner

relights automatically (anti-cycling). The pump continues to

run during this period.

4. When the demand is satisfied the burner is extinguished

and the pump continues to run for a period of 3 minutes

(Pump Overrun).

3.2 Domestic Hot Water Mode (Fig. 3)

1. Priority is given to the domestic hot water supply. A

demand at a tap or shower will override any central heating

requirement.

2. The flow of water will operate the Hall Effect Sensor

which requests the 3 way valve to change position. This will

allow the pump to circulate the primary water through the

DHW plate heat exchanger.

3. The burner will light automatically and the temperature of

the domestic hot water is controlled by the temperature

sensor.

4. When the domestic hot water demand ceases the burner

will extinguish and the diverter valve will remain in the

domestic hot water mode, unless there is a demand for

central heating.

IMPORTANT: When the selector switch is in the ‘0’

(Off) position the electrical supply to the boiler is isolated.

The boiler will not operate and the integral timer will

require resetting once the selector switch is set to either

Position (i) or Position (ii).

3.3 Frost Protection Mode

1. The frost protection mode is integral to the appliance and

functions only with the selector switch (see Section 2.1) in

the domestic hot water and central heating position. If the

system temperature falls below 5° C then the boiler will fire

on its minimum setting until a flow temperature of 30° C is

reached.

3.4 Pump Protection

1. With the selector switch (see Section 2.1) in either the

central heating or central heating and domestic hot water

position, the pump will automatically operate for 1 minute in

every 24 hours to prevent sticking.

5 6

1213141516

1 Primary Heat Exchanger

2 Burner

3 Ignition Electrodes

4 Flame Sensing Electrode

5 Gas Valve

6Pump

7 Automatic Air Vent

8 Plate Heat Exchanger/Automatic By-pass

9 Flow Sensor with Filter & Regulator

10 Safety Pressure Relief Valve

11 Boiler Drain Point

12 Heating Return

13 Cold Water Inlet On/Off Valve and Filter

14 Gas Inlet

15 Domestic Hot Water Outlet

16 Heating Flow

17 Pressure Gauge

18 Water Pressure Sensor

20 Fan

21 Diverter Valve Assembly

22 Diverter Valve Motor

23 Domestic Hot Water Flow Temperature Sensor

24 Safety Thermostat

25 Central Heating Temperature Sensor

26 Expansion Vessel

27 Heat Exchanger Air Vent

Key

Central Heating Circuit

Domestic Hot Water Circuit

Fig. 3

5 6

1213141516

Fig. 2

4.0 Technical Data

4.1 Gold Combi 24, 28 & 33 HE A

Flue Terminal Diameter 100mm

Dimensions Projection 125mm

Outercase Dimensions

Casing Height - 780mm

Overall Height Inc Flue Elbow - 965mm

Casing Width - 450mm

Casing Depth - 345mm

Central Heating Primary Circuit

Pressures

bar

Safety Discharge 3

Max Operating 2.5

Min Operating 0.5

Recommended Operating Range 1-2

DHW Circuit bar

Pressures

Max Operating 8

Min Operating 0.15

Flow Rates (24) (28) (33)

l/min l/min l/min

DHW Flow Rate

@ 30o C Rise 11.43 13.3 15.7

DHW Flow Rate

@ 35o C Rise 9.8 11.5 13.5

Min Working

DHW Flow Rate 2 2 2

Pump

Available Head See graph below

Expansion Vessel - (For Central Heating

only. Integral with appliance)

bar

Min Pre-charge Pressure 0.5

(24,28) (33)

Max Capacity of litre litre

CH System 125 155

Primary Water Content

of Boiler (unpressurised) 2.5 2.8

Connections copper tails

Gas Supply - 22mm

Central Heating Flow - 22mm

Central Heating Return - 22mm

Cold Water Mains Inlet - 15mm

DHW Flow - 15mm

Pressure Relief Discharge - 15mm

Temperatures

C.H. Flow Temp (adjustable)

25°C to 80°C max (± 5°C)

D.H.W. Flow Temp (adjustable)

35°C to 60°C max (± 5°C)

dependent upon flow rate

NOxClass 5

200 400 600 800 1000 1200

0.5

1.5

2.5

3.5

Metre (wg)

Flow Rate (l/h)

Pump - Available Head

5.5

4.5

Clearances

Above Casing 200 mm Min

Below Casing 150 mm Min*

Front 450 mm Min (For Servicing)

Front 5 mm Min (In Operation)

L.H. Side 5 mm Min

R.H. Side 5 mm Min (In Operation)

*This is the MINIMUM recommended dimension. Greater

clearance than this will aid installation and maintenance.

Heat Input CH (Net) Max Min

24 model kW 20.5 7

28 model kW 24.7 9

33 model kW 28.9 9.7

Heat Output CH (Non-Condensing)

Max Min

24 model kW 20 6.8

28 model kW 24 8.7

33 model kW 28 9.4

Electrical Supply 230V~ 50Hz

(Appliance must be connected to an

earthed supply)

Power Consumption

155W (24 & 28 model) 160W (33 model)

Electrical Protection

IPX0D

Internal Fuse Rating F2L

Appliance Category CAT I 2H

Inlet Pressure (Natural Gas - G20)

mbar 20

Injector (Natural Gas - G20)

7.5mm (24&28 model) 12mm(33 model)

Appliance Type C13 C33 C53

Heat Output CH (Condensing)

Max Min

24 model kW 21 7.4

28 model kW 25.9 9.5

33 model kW 30.3 10.2

Heat Input DHW (Net) Max

24 model kW 24.7

28 model kW 28.9

33 model kW 34

Heat Output DHW Max

24 model kW 24

28 model kW 28

33 model kW 33

Max Gas Rate (Natural Gas - G20)

(After 10 mins)

24 model m3/h 2.61

28 model m3/h 3.1

33 model m3/h 3.6

Condensate Drain

To accept 21.5mm (3/4in) plastic waste pipe

Heat Input CH (Gross) Max Min

24 model kW 22.7 7.8

28 model kW 27.4 10

33 model kW 32.1 10.8

Heat Input DHW (Gross) Max

24 model kW 27.4

28 model kW 32.1

33 model kW 37.7

External Fuse Rating 3A

The efficiency is 91.1% (all models)

This value is used in the UK Government’s Standard

Assessment Procedure (SAP) for energy rating of

dwellings. The test data from which it has been

calculated has been certified by 0087.

SEDBUK Declaration

Weights (kg)

(24) (28) (33)

Packaged Boiler Carton 48.6 49.2 51

Installation Lift Weight 43.6 44.2 46

IMPORTANT: Where Low Flow Taps or Fittings are

intended to be used in the DHW system connected it is

strongly recommended that the DHW flow rate DOES

NOT fall below 2.5l/min. This will ensure reliable

operation of the DHW function.

NOTE: All data in this section are nominal values

and subject to normal production tolerances.

Andere Handbücher für Gold HE A Range

Dieses Handbuch passt für folgende Modelle

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