Potterton Performa 28i Instructions de fonctionnement

User’s Operating

Instructions

Please keep these instructions safe.

Should you move house, please hand

them over to the next occupier.

Performa 28i

Gas Fired Wall Mounted Combination Boiler

Natural Gas

Potterton Performa 28i

G.C.No47 393 08

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 0051.

For GB/IE only.

STANDARD

B.S. 6891

B.S. 5440: Pt 1

B.S. 5440: Pt 2

B.S. 5546

B.S. 7074

B.S. 5449

B.S. 6798

SCOPE

Gas Installation.

Flues.

Air Supply.

Installation of hot water supplies

for domestic purposes.

Expansion vessels and ancillary

equipment for sealed water systems.

Forced circulation hot water systems.

Installation of gas fired hot water

boilers.

Guarantee

Your Potterton Performa 28i is

designed and produced to meet all

the relevant Standards.

Potterton provide a 12 month

guarantee on the boiler. The

guarantee operates from the date

installation is completed for the

customer who is the original user.

To maximise the benefit from our

guarantee we urge you to return the

reply-paid guarantee registration.

This does not in any way prejudice

your rights at Common Law. Such

rights between the customer and the

installer or supplier from whom the

unit was purchased remain intact.

Any component or part which

becomes defective during the

guarantee period as a result of faulty

workmanship or material whilst in

normal use will be repaired or

replaced free of charge.

Where fitted, user label for

optional timer to be applied here.

1.0 Warnings

1.1 Safe Installation

1. The appliance is suitable for installation only in

G.B. and I.E. and should be installed in

accordance with the rules in force. For Ireland

install in accordance with I.S.813 “INSTALLATION

OF GAS APPLIANCES”. The installation must be

carried out by a CORGI Registered Installer or

other registered competent person and be in

accordance with the relevant requirements of GAS

SAFETY (Installation and Use) REGULATIONS most

recent edition, the BUILDING REGULATIONS issued

by the Department of the Environment, BUILDING

STANDARDS (Scotland) (Consolidation)

REGULATIONS issued by the Scottish Development

Department and the LOCAL BUILDING

REGULATIONS.Where no specific instructions are

given, reference should be made to the relevant

BRITISH STANDARD CODES OF PRACTICE

and INSTALLATION SPECIFICATIONS.

2. This appliance must be installed in

accordance with the manufacturer’s

instructions and the rules in force, and only

used in a suitably ventilated location.

3. Read the instructions before installing or

using this appliance.

4. Any purpose provided ventilation should be

checked periodically to ensure that it is free from

obstruction.

IMPORTANT - The addition of anything that

may interfere with the normal operation of the

appliance without express written permission

could invalidate the appliance warranty and

infringe the GAS SAFETY (Installation and Use)

REGULATIONS.

1.2 In case of gas leaks

1. If a gas leak is found or suspected, turn off the

gas supply at the meter immediately and at the

isolating valve on the boiler if possible. Contact

your Installer or Transco (under 'Gas' in the

phone directory).

1.3 Servicing your Appliance

1. For reasons of safety and economy your

appliance should be serviced annually. Servicing

must be performed by a competent person. Your

Installer or British Gas Service will be able to

advise you.

1.4 Electricity Supply

1. THIS APPLIANCE MUST BE EARTHED.

2. A standard 230V ~ 50Hz supply is required.

The appliance must be protected by a 3 amp

fuse.

Never Hang Flammable Items Over The

Appliance

IN AN EMERGENCY

If a water or gas leak occurs or is suspected, the boiler can be

isolated at the inlet valves as follows;

1. Turn off the electrical supply and turn the selector switch on

the facia box to the OFF position.

2. Using a suitable open ended spanner or screwdriver turn the

square on the gas tap to the left to isolate the gas supply at the

boiler (Fig. 1).

3. The isolating valves are positioned under the boiler and can be

closed by turning their taps to the right towards the wall (Fig. 2).

4. Call your Service Engineer as soon as possible.

“Benchmark”Installation, Commissioning and Service

Record Log Book

Please ensure that your installer has completed the Installation

and Commissioning sections of the Log Book and hands the Log

Book over. The details of the Log Book will be required in the

event of any warranty work. Keep the Log Book in a safe place

and ensure that the relevant sections are completed at each

subsequent regular service visit.

Gas Tap

Heating Flow, Heating Return

and Mains Water Inlet

Isolating Valves

Fig. 1

Fig. 2

All CORGI registered installers carry a CORGI identification card

and have a registration number. Both should be recorded in your

boiler Log Book. You can check your installer is registered by

telephoning 01256 372300 or writing to:-

1 Elmwood,

Chineham Business Park,

Crockford Lane,

Basingstoke.

RG24 8WG.

2.0 Introduction

2.1 Introduction

1. Your Potterton Performa 28i is a gas fired, room

sealed, powered flue combination boiler, providing

central heating for your home and mains fed

domestic hot water to taps and shower. It is fully

automatic and does not have a pilot light.

2. Priority is given to the hot water mode - when a

hot water tap is turned on the supply of heat to the

central heating circuit is interrupted.

2.2 Instant Domestic Hot Water

1. The boiler expansion vessel incorporates a

small volume of stored primary hot water.

2. When the boiler has been off and there is then a

demand for domestic hot water the stored primary

hot water ensures that domestic hot water is

supplied instantly at temperature.

3. The stored hot water is part of the primary

circuit. This is not supplied as domestic hot water,

which is fresh mains water heated by a heat

exchanger within the boiler.

4. The stored primary hot water temperature is

maintained whilst the boiler is in operation. During

a period when there is no demand for heating or

hot water the temperature of the stored primary hot

water will eventually fall. The boiler will operate

occasionally in order to maintain the temperature.

This is indicated by the domestic hot water mode

neon flashing (item 13 of Fig. 3).

2.3 Facia Panel

1. The facia panel is behind the hinged lower door.

As well as the on/off/reset selector switch, central

heating temperature control knob, pre-heat control

and pressure gauge, the facia incorporates ten

neon indicator lights.

2. Neons 12 to 15 indicate the operational status of

the boiler. Neons 6 to 11 have a dual function,

indicating the temperature of the central heating

water when constantly illuminated. If a fault

develops the appropriate neon will begin to flash.

Refer to Sections 3.3 to 3.7.

bar

30°40°50°60°70°80°

Reset

Preheat

Off

Fig. 3

30°40°50°60°70°80°

1. On/Off/Reset Selector Switch

2. Central Heating Temperature Control

3. Pre-Heat Control

4. Central Heating System Pressure Gauge

5. Optional Integral Timer Position

Neon Indicators

6. Flame Failure

7. Safety Thermostat Activated

8. Fault on Fan or Flue

9. Fault on Pump or Low System Pressure

10. Fault on Hot Water Sensor

11. Fault on Central Heating Sensor

12. Power On

13. Domestic Hot Water Mode

14. Central Heating Mode

15. Burner On

32145

6 7 8 9 10 11

12 13 14 15

KEY TO FACIA PANEL (Fig. 3)

When neons 6 to 11 are

constantly illuminated, they

indicate the temperature of

the central heating water.

3.0 Operating the Boiler

3.1 Operating the Boiler

1. Ensure that the electricity and gas supplies are

turned on. Check that the central heating pressure

is between 0.5 and 1.0 bar (Fig. 4).

2. Turn the On/Off/Reset selector switch either

anti-clockwise from the off position (Fig. 6) to both

central heating and domestic hot water or

clockwise to domestic hot water only.

3. In either position the green power on neon

( ) will illuminate (Fig. 5).

4. Position (i) In this position the central heating

will operate according to demand or provide

domestic hot water when a tap or shower is turned

on (Fig. 7). Priority is given to domestic hot water.

The central heating neon ( ) will illuminate

when the boiler is supplying central heating. If

there is a demand for domestic hot water the ( )

neon will illuminate and the central heating neon

( ) will extinguish (Fig. 5). Neons 6 to 11 will

illuminate as the temperature rises.

5. Position (ii) In this position hot water will be

provided when a tap or shower is turned on

(Fig. 8). The hot water neon ( ) will illuminate

(Fig. 5).

6. The boiler will light automatically on demand.

7. The orange burner on neon ( ) will illuminate

when the boiler is operating and the main burner is

on (Fig. 5).

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 set to either Position

(i) or Position (ii).

bar

30°40°50°60°70°80°

Reset

Preheat

Off

Reset

Position (ii)

(Hot Water)

Fig. 7

Fig. 8

Reset

OFF Position

Fig. 6

Fig. 5

Fig. 4

bar

Power On

Neon Burner On

Neon

Central Heating

System Pressure

Gauge

Position (i)

(Central Heating or Hot Water)

On/Off/Reset

Selector Switch

Central

Heating Neon

Domestic

Hot Water

Neon

30°40°50°60°70°80°

6 7 8 9 10 11

3.0 Operating the Boiler

3.2 Temperature Control

1. Central Heating: The central heating hot water

flow temperature can be adjusted between 30°C

(± 5°C) minimum and 85°C (± 5°C) maximum.

2. Turn the control knob clockwise to increase the

temperature (Fig. 9).

3. In normal winter usage we recommend that the

central heating temperature be set at maximum.

4. Domestic Hot Water Pre-Heat: To enjoy

optimum performance of the boiler the pre-heat

control should be set fully clockwise to the ON

position (Fig. 10). When there is a demand for hot

water it will be supplied at approximately 65°C

instantaneously.

5. Turning the control 15°clockwise from the OFF

position will activate the pre-heat feature. Hot

water will be supplied at approximately 35°C

instantaneously.

6. To increase the temperature turn the control

further clockwise. For example, when set 90°

clockwise the boiler will supply hot water at

approximately 44°C instantaneously. At a

position 180°from clockwise (i.e. straight down)

the hot water will be supplied at 52°C

instantaneously.

7. When the control is set anywhere between 15°

clockwise from the OFF position and the ON

position, the pre-heat feature will operate.

8. With the control in the OFF position (Fig. 11)

the pre-heat feature will not operate. Hot water

will be supplied at approximately 50°C.

9. The pre-heat feature will function with the

selector switch in either operating position. This is

indicated by the domestic hot water mode neon

flashing (Fig. 12).

10. The flow rate can be reduced down to as low

as 2.5 litre/min. The boiler will still recognise the

need to heat the water.

3.3 Flame Failure Reset

1. The red flame failure neon ( ) will illuminate in

the event of the burner failing to light, or when

incomplete lighting of the burner occurs (Fig. 12).

2. Turn the selector switch fully anti-clockwise

against the spring pressure to the reset position,

hold for 2 seconds and release (Fig. 13). Set the

selector to the required position to light the boiler.

3. If the flame failure light illuminates repeatedly a

fault is indicated. Your Service Engineer should

be contacted as soon as possible.

Preheat

Off

Reset

Domestic Hot Water

Pre-Heat Control

ON Position

Fig. 9

Central Heating

Temperature Control

Fig. 10

Reset Position

Fig. 13

30°40°50°60°70°80°

Flame Failure

Neon

Fig. 12

Preheat

Off

Fig. 11

Domestic Hot Water

Pre-Heat Control

OFF Position

Domestic Hot

Water Neon

3.0 Operating the Boiler

3.4 Safety Thermostat

1. Your Potterton Performa 28i is fitted with an

additional safety device, which shuts down the

boiler in the event of the system or the boiler

overheating. The safety thermostat neon ( ) will

light in this instance (Fig. 14).

2. To reset: Turn the selector fully anti-clockwise

against the spring pressure to the reset position,

hold for 2 seconds and release (Fig. 15). Set the

selector to the required position to light the boiler.

3. If the safety thermostat operates repeatedly,

causing boiler shutdown, a fault is indicated. Your

Service Engineer should be contacted as soon as

possible.

3.5 Air Flow Monitor

1. The boiler is fitted with an air pressure sensing

device. This monitors the flue system.

2. If the neon illuminates ( ) it indicates that

the flue or flue terminal is blocked or obstructed in

some way, or that there is an internal fault. If there

is no external blockage of the flue terminal that

can be easily removed contact your Service

Engineer (Fig. 14).

3.6 Pump Fault or Low Pressure

1. The neon ( ) will illuminate if the circulating

pump is faulty or the system pressure drops

below the minimum requirement (Fig. 14).

2. Check the pressure gauge as described in

Section 3.9. If the pressure is in the normal range,

a pump fault is indicated. Contact your Service

Engineer to determine the nature of the fault.

3.7 Sensor Fault

1. When the ( ) or ( ) neon is illuminated a

fault on the hot water or central heating

temperature sensor is indicated (Fig. 14). Contact

your Service Engineer.

3.8 Pump Protection

1. With the selector switch in either Position (i) or

Position (ii) (Figs. 16 & 17) the pump will

automatically operate for 1 minute in every 24

hours to prevent sticking.

30°40°50°60°70°80°

Air Flow

Monitor Neon

Pump/Low

Pressure Neon

Sensor Fault

Neons

Reset

Fig. 14

Fig. 16

Fig. 17

Safety

Thermostat

Neon

Reset

Reset Position

Fig. 15

3.0 Operating the Boiler

3.9 Central Heating System Pressure

1. The water pressure in the central heating

system is indicated by the pressure gauge.

2. With the system cold and the boiler not

operating the pressure should be between 0.5

and 1.0 bar. During operation the pressure

should not exceed 2.5 bar, and will normally be

between 1.0 and 2.0 (Figs. 18 & 19).

3. A pressure of 3 or greater indicates a fault.

The safety pressure relief valve will operate, at a

pressure of 3 (Fig. 20). It is important that your

Service Engineer is contacted as soon as

possible.

4. The MINIMUM pressure for correct operation

is 0.5. If the pressure falls below 0.5, this may

indicate a leak on the central heating system

(Fig. 21).

5. The system must be re-pressurised by your

Service Engineer.

3.10 To Shut Off the Boiler

1. For short periods: Turn the selector switch to

the OFF position (Fig. 22).

2. For long periods: Turn off the selector switch

(Fig. 22), electricity and gas supplies.

If your home is to be left unoccupied for long

periods during cold weather the boiler and

whole system should be drained unless there

is additional frost protection.

3. Your installer will advise you about frost

protection and draining the system.

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 set to

either Position (i) or Position (ii).

3.11 Frost Protection Mode

1. The frost protection feature will operate when

the selector switch is in the central heating and

domestic hot water mode.

The gas and electrical supplies to the boiler must

be on and the system pressure must be within

the range described in Section 3.9.

2. If the system temperature falls below 5°C, then

the boiler will fire until the water temperature has

been raised.

3. Further frost protection can be incorporated by

using a frost thermostat to protect the whole

system.

bar

ON/OFF

Selector Switch

Reset

OFF Position

Fig. 22

Normal Pressure (when cold)

Normal Pressure (operating)

Fig. 18

Fault

Fig. 19

Below Minimum

Fig. 20

Fig. 21

Pressure Gauge

4.0 Clearances and Check List

4.1 Clearances around the Boiler

(Figs. 23 & 24)

1. The minimum clear spaces needed around

the boiler measured from the casing are as

follows:

Top - 200mm

Bottom - 200mm

Both sides - 5mm

Front - 5mm (In Operation)

- 450mm (For Servicing)

2. These areas must not be obstructed in any

way. Blocking the clearance spaces may

result in the boiler overheating and damage

may occur.

3. The gas burning compartment of your boiler is

completely sealed from the room in which it is

fitted. Products from the combustion of gas are

vented to the outside through the flue terminal

which must be kept free from obstruction as this

would interfere with the correct operation of the

boiler.

4. The boiler may be installed in a cupboard if

these minimum clearances are kept. The

compartment should be large enough to house

the boiler and ancillary equipment only.

5. IT SHOULD NOT BE USED AS A STORAGE

CUPBOARD.

4.2 Check List

1. If a fault develops, or is suspected, call your

Service Engineer as soon as possible.

2. Go through the following check list before you

make contact.

a) Is the electricity supply on ?

b) Is the selector switch on (giving a green

“Power ON”neon) and set for both Central

Heating and Domestic Hot Water ?

c) Is the red “Flame Failure”neon lit ?

Turn the On/Off/Reset selector fully anti-

clockwise.

d) Is the gas supply on ?

e) Is the mains water supply turned on ?

f) Is the system pressure correct ?

g) Are the boiler temperature controls set high

enough ?

h) Is the time clock (if fitted) calling for central

heating ?

i) Is the room thermostat (if fitted) set high

enough ?

j) Are the radiator valves open ?

200mm Min

780mm

450mm

200mm Min

5mm Min

5mm

450mm Min

For Servicing

Purposes

Fig. 23

Fig. 24

In Operation

5.0 Cleaning & Spares

5.1 Cleaning the Outercase

The painted panels should be wiped with a damp

cloth and then dried completely. DO NOT USE

ABRASIVE CLEANING AGENTS.

5.2 Spare Parts

IMPORTANT - Only a competent person

should be used to service or repair this boiler.

1. Any repairs to the boiler will usually be the

responsibility of the Installer during the

guarantee period after which spare parts may be

obtained through approved Potterton stockists if

required.

2. Quote the appliance name, model number

and where possible the part number when

ordering spares. A parts list is included in the

Installation and Servicing Instructions.

3. The name, model number and serial number

can be found on the information label on the

back of the hinged lower door (Fig. 25).

Information Label

Fig. 25

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