Potterton Performa 28 Manuale utente

User’s Guide Performa 28

This is a Wall Mounted 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.

2Publication No. 5113938

Natural Gas

Potterton Performa 28

G.C.No47 393 07

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, 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 Commissioning Checklist

Please ensure that your installer hands you the boiler

Installation & Service Instructions with the Benchmark

Commissioning Checklist sections completed. The details in

the Checklist will be required in the event of any warranty

work. Keep the instructions in a safe place and ensure that the

Service Interval Record at the back is completed at each

service visit.

CORGI

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

Publication No. 5113938

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.

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. 5113938

Introduction

1. Your Potterton Performa 28 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.

Facia Panel

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

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

temperature control knobs 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

Fig. 3

30°40°50°60°70°80°

1. On/Off/Reset Selector Switch

2. Central Heating Temperature Control

3. Hot Water Temperature 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

When neons 6 to 11 are constantly illuminated,

they indicate the temperature of the central

heating water

32145

6 7 8 9 10 11

12 13 14 15

KEY TO FACIA PANEL (Fig. 3)

Publication No. 5113938

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

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. 5113938

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: The temperature of the

domestic hot water can be adjusted by turning the

control knob clockwise to increase up to a maximum

of 65°C (Fig. 10).

5. The temperature of the water is also dependent on

the water flow rate and the temperature of the mains

coming into the house.

6. By slightly reducing the flow from the tap the

temperature will increase up to the maximum if

required.

7. 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, or when incomplete

lighting of the burner occurs (Fig. 11).

2. Turn the selector switch fully anti-clockwise against

the spring pressure to the reset position, hold for at

least 3 seconds and release (Fig. 12). Set the selector

to the required position to light the boiler.

3. If the flame failure light illuminates repeatedly a

fault is indicated. Your Installer or Service Engineer

should be contacted as soon as possible.

Safety Thermostat

1. Your Potterton Performa 28 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. 11).

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

against the spring pressure to the reset position, hold

for at least 3 seconds and release (Fig. 12). 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

Installer or Service Engineer should be contacted as

soon as possible.

Reset

Domestic Hot Water

Temperature Control

Fig. 9

Central Heating

Temperature Control

Fig. 10

Reset Position

Fig. 12

30°40°50°60°70°80°

Flame Failure

Neon

Fig. 11

Safety Thermostat

Neon

Publication No. 5113938

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. 12).

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. 12).

2. Check the pressure gauge as described in Section

‘Central Heating System Pressure’. 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. 12). Contact your Installer or Service

Engineer.

Pump Protection

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

Position (ii) (Figs. 13 & 14) 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. 12

Fig. 13

Fig. 14

8Publication No. 5113938

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.

15 & 16).

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

safety pressure relief valve will operate, at a pressure

of 3 (Fig. 17). 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. 18).

To Shut Off the Boiler

1. For short periods: Turn the selector switch to the

OFF position (Fig. 19).

2. For long periods: Turn off the selector switch

(Fig.19), 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 in Section ‘Central Heating System

Pressure’.

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. 19

Normal Pressure (when cold)

Normal Pressure (operating)

Fig. 15

Fault

Fig. 16

Below Minimum

Fig. 17

Fig. 18

Pressure Gauge

Publication No. 5113938

Clearances around the Boiler (Figs. 20 & 21)

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.

Check List

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

or 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 anticlockwise.

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

450mm Min

For Servicing

Purposes

Fig. 20

Fig. 21

In Operation

10 Publication No. 5113938

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 back of the

hinged lower door (Fig. 22).

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