Potterton Performa 28i Operation instructions

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

2
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
3
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
4
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.
2
1
0
4
3
bar
30°40°50°60°70°80°
Reset
Preheat
Off
On
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
5
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).
2
1
0
4
3
bar
30°40°50°60°70°80°
Reset
Preheat
Off
On
Reset
Reset
Position (ii)
(Hot Water)
Fig. 7
Fig. 8
Reset
OFF Position
Fig. 6
Fig. 5
Fig. 4
2
1
0
4
3
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