Potterton Performa 24 Eco HE Montage- und Wartungsanleitung

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Reset Burner On

Flame Failure

Power On

Installation & Service InstructionsPerforma

24 Eco HE

This is a Wall Mounted Powered Flue Condensing Combination Boiler Gas Fired Central Heating Unit.

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 0051.

Product/Production certified by:

Notified Body 0086.

For use in GB/IE only.

These instructions include the Benchmark Commissioning Checklist and should be left with the User for safe keeping.

Publication No. 5111811

Natural Gas

Potterton Performa 24 Eco HE

G.C.No47 393 11

Building Regulationsand 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.

CORGI operate 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Benchmark Logbook is being withdrawn.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.

CONTENTS

Legislation 4

1.0 Introduction 5

2.0 General Layout 6

3.0 Appliance Operation 7

4.0 Technical Data 8

5.0 Dimensionsand Fixings9

6.0 System Details10

7.0 Site Requirements13

8.0 Installation 19

9.0 Commissioning 24

10.0 Completion 26

11.0 Servicing the Boiler 27

12.0 Changing Components29

13.0 Electrical 39

14.0 Short PartsList40

15.0 Fault Finding 41

Benchmark Checklist46

Section Page

INSTALLER NOTIFICATION GUIDELINES

Publication No. 5111811

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

CORGI will record the data and

will send a certificate of

compliance to the property

You must ensure that the

notification number issued by

CORGI is written onto the

Benchmark Checklist

Scheme Members only

Call CORGI on: 0870 88 88 777

or log onto:

www.corgi-notify.com

within 10 days

If you notify via CORGI Scheme,

CORGI will then notify the

relevant Local Authority

Building Control Scheme

on member's 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

4Publication No. 5111811

Codesof Practice, most recent version should

be used

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 CORGI 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”.

Lifting - This product should be lifted and handled by two people. Stooping

should be avoided and protective equipment worn where necessary.

Carrying & lifting equipment should be used as required, e.g. when installing

in a loft space.

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.

All CORGI registered installers carry a CORGI identification card and have a

registration number. You can check your installer is registered by

telephoning 0870 4012300 or writing to:-

1 Elmwood,

Chineham Business Park,

Crockford Lane,

Basingstoke. RG24 8WG

or check online at www.corgi-gas-safety.com

Potterton declare that no substancesharmful to

health are contained in the appliance or used

during appliance manufacture.

The appliance issuitable only for installation in GB

and IE and should be installed in accordance with

the rulesin force, and only used in a suitably

ventilated location.

In GB, the installation must be carried out by a CORGI

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 systemsmust be thoroughly flushed and

treated with inhibitor (see section 6.2).

In GB the following Codesof Practice apply:

Standard Scope

BS 6891 Gas Installation.

BS 5546 Installation of hot water supplies for

domestic purposes.

BS 5449 Forced circulation hot water 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 Codesof Practice apply:

Standard Scope

I.S. 813 Domestic Gas Installations.

The following BS standards give valuable additional information;

BS 5546 Installation of hot water supplies for

domestic purposes.

BS 5449 Forced circulation hot water systems.

BS 7074 Expansion vessels and ancillary equipment

for sealed water systems.

BS 7593 Treatment of water in domestic hot water

central heating systems.

1.0 INTRODUCTION

Publication No. 5111811

1.1 Description

1. The Potterton Performa 24 Eco HE is a fully

automatic gas fired wall mounted condensing

combination boiler. It is room sealed and fan

assisted, and will provide central heating and mains

fed domestic hot water.

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

25.2 kW (condensing).

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

be converted to use Propane.

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

sealed heating systems. Priority is given to domestic

hot water.

5. The boiler data badge gives details of the model,

serial number and Gas Council number and is

situated on the control box. It is visible when the

case front panel is removed (Fig. 1).

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

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

a governed meter supply only.

7. The boiler must be installed with one of the

purpose designed flues such as the standard

horizontal flue kit, part no. 5111073.

8. All systems must be thoroughly flushed and

treated with inhibitor (see section 6.2).

1.2 Optional Extras

1. Various flue extensions, bends, vertical flue kits,

control accessories etc. are available as optional

extras. These are detailed in a separate publication.

Data Badge

Fig. 1

Control Box

Case Front Panel

2.0 GENERAL LAYOUT

6Publication No. 5111811

2.1 Layout

1. Air Pressure Switch

2. Expansion Vessel

3. Burner Manifold

4. Automatic Air Vent

5. DHW Plate Heat Exchanger

6. Circulation Pump

7. Drain Off Point

8. Pressure Relief Valve

9. Optional Integral Timer Position

10. Central Heating System Pressure Gauge

11. Control PCB

12. Control Box

13. 3-Way Valve Assembly

14. Condensate Trap

15. Flame Sensing Electrode

16. Spark Electrode

17. Burner

18. Primary Heat Exchanger

19. Fan Assembly

20. Secondary Heat Exchanger

21. On / Off / Reset Selector Switch

22. Burner & Fault Indicator Neon

23. Power Neon

24. Flame Failure & Fault Indicator Neon

25. Central Heating Temperature Control

26. Hot Water Temperature Control

12 11

10 9

21 22 23 24 25 26 10 9

bar

Reset Burner On

Flame Failure

Power On

Performa 24 Eco HE

Fig. 2

Fig. 3

3.0 APPLIANCE OPERATION

Publication No. 5111811

NOTE: All delay timers mentioned in 3.1 and 3.2

are overridden by domestic hot water demand.

3.1 Central Heating Mode (Fig. 4)

1. With a demand for heating, the pump circulates

water through the primary circuit. At a pre-

determined flow rate the central heating flow switch

operates, initiating the ignition sequence.

2. The main burner ignites at low rate, then the gas

valve 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.

3.2 Domestic Hot Water Mode (Fig. 5)

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 DHW flow switch

which causes 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 (if fitted) will require resetting once

the selector switch is turned to either the DHW

or CH position.

5 6

1213141516

1 Primary Heat Exchanger

2 Burner

3 Ignition Electrode

4 Flame Sensing Electrode

5 Gas Valve

6 Pump

7 Automatic Air Vent

8 Plate Heat Exchanger

9 Flow Sensor with Filter

10 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 Hydraulic Differential Pressure Sensor Microswitch

19 Automatic By-Pass

20 Hydraulic Differential Pressure Sensor

21 Diverter Valve Assembly

22 Domestic Hot Water Flow Priority Assembly

23 Domestic Hot Water Flow Priority Microswitch

24 Temperature Sensor

25 Overheat Thermostat

26 Expansion Vessel

27 Secondary Heat Exchanger

Key

Central Heating Circuit

Domestic Hot Water Circuit

Fig. 4

Fig. 5

5 6

1213141516

4.0 TECHNICAL DATA

8Publication No. 5111811

200 400 600 800 1000 1200

0.5

1.5

2.5

3.5

Metre (wg)

Flow Rate (l/h)

Pump - Available Head

4.5

Temperatures

C.H. Flow Temp (adjustable)

35°C to 85°C max (± 5°C)

D.H.W. Flow Temp

35°C to 65°C max (± 5°C)

dependent upon flow rate

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 have been certified by 0051.

SEDBUK Declaration For Performa 24 Eco HE

The seasonal efficiency (SEDBUK) is87.3% (89.3% LPG)

Band B

Heat Input CH

Max Min

kW 24.8 10.6

Heat Output CH (Non-Condensing)

Max Min

kW 24 9.8

Electrical Supply 230V~ 50Hz

(Appliance must be connected to an

earthed supply)

Power Consumption 170W

External Fuse Rating 3A

Internal Fuse Rating

Fuse 2A Fast Blow to BS 4265

Appliance Category CAT II 2H 3P

Inlet Pressure (Natural Gas - G20)

mbar 20

Burner Injector (Natural Gas - G20)

15 x 1.18mm Diameter

Burner Pressure (Natural Gas - G20)

Max Rate Min Rate

mbar 10.2 ± 0.5 2 ± 0.2

Appliance Type C12 C32

Heat Output CH (Condensing)

Max Min

kW 25.2 10.1

Heat Input DHW

Max

kW 24.8

Heat Output DHW

Max

kW 24

Flue Terminal Diameter 100mm

DimensionsProjection 125mm

Outercase Dimensions

Casing Height - 780mm

Overall Height Inc Flue

Elbow - 965mm

Casing Width - 450mm

Casing Depth - 345mm

Clearances

Above Casing 200 mm Min

Below Casing 200 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)

20 mm Min (See Note*)

*NOTE: The boiler can be operated with a

clearance of 5mm at the right. Thisisalso

sufficient for routine maintenance.

However a clearance of 20mm isrequired

if it isnecessary to remove the secondary

heat exchanger. Thisshould be considered

when siting the appliance and in the event

of any subsequent alterationsin the area

of installation

Weightskg

Packaged Boiler Carton 50

Installation Lift Weight 43.5

Connectionscopper tails

Gas Supply - 22mm

Central Heating Flow - 22mm

Central Heating Return - 22mm

Cold Water Mains Inlet - 15mm

DHW Flow - 15mm

Pressure Relief Discharge - 15mm

NOxClass 3

Electrical Protection IPX4D

Condensate Drain 1” BSP

LPG Propane - G31

Burner Injector 15 x 0.77mm diameter

Burner Pressure

Propane mbar

Inlet Pressures

mbar

Max Rate

21.8 ± 0.5

Min Rate

4.4 ± 0.2

Central Heating Primary Circuit

Pressures

bar

Safety Discharge 3

Max Operating 2.5

Min Operating 0.5

Recommend Operating 1-2

DHW Circuit bar

Pressures

Max Operating 8

Min Operating 0.2

Min Operating Pressure

at 11.1 l/min 0.9

Flow Ratesl/min

DHW Flow Rate

@ 30°C Rise 11.5

DHW Flow Rate

@ 35°C Rise 9.8

Min Working

DHW Flow Rate 2.5

Pump

Available Head See graph below

Expansion Vessel - (For Central Heating

only. Integral with appliance)

bar

Min Pre-charge Pressure 0.5

litre

Max Capacity of

CH System 125

Primary Water Content 1.0

of Boiler (unpressurised)

Max GasRate (Natural Gas - G20)

(After 10 mins)

m3/h 2.62

5.0 DIMENSIONS AND FIXINGS

Publication No. 5111811

Dimensions

A780mm

B345mm

C450mm

D116mm Ø Min.

E185mm

F190mm

G131mm

65mm 65mm 65mm 65mm

View from under the appliance

GasInlet

Heating

Flow

Domestic Hot

Water Outlet

Cold Water

Inlet

Heating

Return

130mm

165.7mm

95mm

Left Hand Side

of Boiler

Fig. 7

360° Orientation

Tube Ø 100mm

Fig. 6

68mm

265mm

6.0 SYSTEM DETAILS

10 Publication No. 5111811

6.1 Information

1. The Potterton Performa 24 Eco HE Condensing

Combination Boiler is a ‘Water Byelaws Scheme -

Approved Product’. To comply with the Water

Byelaws your attention is drawn to the following

installation requirements and notes (IRN).

a) IRN 001 - See text of entry for installation

requirements and notes.

b) IRN 302 - Byelaw 14.

2. Reference to the WRc publications, ‘Water fittings and

materials directory’ and ‘Water supply byelaws guide’

give full details of byelaws and the IRNs.

6.2 Central Heating Circuit

1. The appliance is suitable for fully pumped SEALED

SYSTEMS ONLY.

Treatment of Water Circulating Systems

• All recirculatory water systems will be subject to

corrosion unless an appropriate water treatment is

applied. This means that the efficiency of the system will

deteriorate as corrosion sludge accumulates within the

system, risking damage to pump and valves, boiler noise

and circulation problems.

• When fitting new systems flux will be evident within the

system, which can lead to damage of system

components.

• All systems must be thoroughly drained and flushed

out. Using for example Betz-Dearborn Sentinel X300 or

X400 or Fernox Superfloc Universal Cleanser which

should be used following the flushing agent

manufacturer’s instructions.

• System additives - corrosion inhibitors and flushing

agents/descalers should be suitable for aluminium and

comply to BS7593 requirements, e.g. Betz-Dearborn

Sentinel X100 and Fernox-Copal which should be used

following the inhibitor manufacturer’s instructions.

Failure to flush and add inhibitor to the system will

invalidate the appliance warranty.

• It is important to check the inhibitor concentration

after installation, system modification and at every

service in accordance with the manufacturer’s

instructions. (Test kits are available from inhibitor

stockists.)

• For information or advice regarding any of the above

contact the Potterton Helpline.

6.3 Bypass

1. The boiler is fitted with an automatic integral

bypass.

6.4 System Control

1. The boiler is designed for use in a heating system

that incorporates external controls, i.e. a minimum of

a timer device.

2. An integral electro-mechanical or electronic timer is

available as an optional extra.

3. For optimum operating conditions and maximum

economy the fitting of a programmable thermostat is

recommended.

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