Potterton Performa 24i HE Manuale utente

User’s Guide Performa

24i 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 0051.

For use in GB/IE only.

2Publication No. 5111814

Natural Gas

Potterton Performa 24i HE

G.C.No47 393 12

Where fitted, user label for

optional timer to be applied here.

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, or valid ACoP equivalents, 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.

“Benchmark”Log Book

As part of the industry-wide “Benchmark”initiative all Potterton

boilers now include an Installation, Commissioning and

Service Record Log Book. Please read the Log Book carefully

and complete all sections relevant to the appliance and

installation. These include sections on the type of controls

employed, flushing the system, burner operating pressure etc.

The details of the Log Book will be required in the event of any

warranty work. Also, there is a section to be completed at

each subsequent regular service visit. The Log Book must be

left with the user.

CORGI

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 +44 (0)1256 372300 or writing to:-

1 Elmwood,

Chineham Business Park,

Crockford Lane,

Basingstoke. RG24 8WG

This product has an energy rating (B) on a scale of A to G.

For more information see www.boilers.org.uk. This is a certification mark.

Publication No. 5111814

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 Installer or Service Engineer as soon as

possible.

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 Gas

Supplier immediately.

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

Service Engineer will be able to advise you.

2. Any purpose provided ventilation should be checked

periodically to ensure that it is free from obstruction.

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

Gas Tap

Heating Flow, Heating Return

and Mains Water Inlet

Isolating Valves

Fig. 1

Fig. 2

4Publication No. 5111814

Introduction

1. Your Potterton Performa 24i HE is a gas fired,

room sealed, powered flue condensing 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.

3. Due to the high efficiency and resultant low flue

gas temperature when in condensing mode a white

plume of condensate will be emitted from the

terminal. This will be particularly evident during

periods of low outside temperature.

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).

Facia Panel

1. The facia panel is behind the hinged lower door

panel. 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.

bar

30°40°50°60°70°80°

Reset

Off

On Preheat

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 or Blocked Condensate Drain

7. Safety Thermostat Activated (Boiler or Flue)

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.

Hinged Lower

Door Panel

Facia Panel

Publication No. 5111814

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

Off

On Preheat

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

6Publication No. 5111814

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.

Flame Failure Reset

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

event of the burner failing to light, when incomplete

lighting of the burner occurs or blockage of the

condensate drain (Fig. 12).

2. Turn the selector switch fully anti-clockwise against

the spring pressure to the ‘Reset’position for at least

two 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 with either the boiler, the gas supply or the

condensate drain. Your Installer or Service Engineer

should be contacted as soon as possible.

Off

On Preheat

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

Off

On Preheat

Fig. 11

Domestic Hot Water

Pre-Heat Control

OFF Position

Domestic Hot

Water Neon

Publication No. 5111814

Safety Thermostat

1. Your Potterton Performa 24i HE is fitted with

additional safety devices, which shut down the boiler

in the event of the system, the boiler or the flue

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, for

at least two seconds and release (Fig. 15). Set the

selector to the required position to light the boiler.

3. If after turning the selector to the ‘Reset’position

the boiler does not relight or the safety thermostat

operates repeatedly, causing boiler shutdown, a fault

is indicated. Your Installer or Service Engineer should

be contacted as soon as possible.

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 Installer or Service

Engineer (Fig. 14).

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 on page 8.

If the pressure is in the normal range, a pump fault is

indicated. Contact your Installer or Service Engineer

to determine the nature of the fault.

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 Installer or

Service Engineer.

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

8Publication No. 5111814

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 Installer or

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).

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).

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 above.

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

Publication No. 5111814

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

Left Side - 5mm

Right Side - 20mm/5mm

Front - 5mm (In Operation)

- 450mm (For Servicing)

*NOTE: The boiler can be operated with a clearance

of 5mm at the right. This is also sufficient for routine

maintenance. However a clearance of 20mm is

required if it is necessary to remove the secondary

heat exchanger. This should be considered when

siting the appliance and in the event of any

subsequent alteration in the area of installation.

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.

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

20mm/5mm Min

see *NOTE:

5mm Min

5mm

450mm Min

For Servicing

Purposes

Fig. 23

Fig. 24

In Operation

10 Publication No. 5111814

Cleaning the Outercase

The painted panels should be wiped with a damp

cloth and then dried completely. DO NOT USE

ABRASIVE CLEANING AGENTS.

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 rear of the

hinged lower door panel (see back page).

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