Potterton PROMAX SL 12 User manual

Promax SL
User Guide
Condensing Central Heating Boiler
12 - 15 - 18 - 24
en
United Kingdom
Please keep these instructions in a safe place.
If you move house, please hand them over to the next occupier.

2© Baxi Heating UK Ltd 2015
Natural Gas
Potterton Promax SL 12 Heat ErP
G.C.No41 592 34
Potterton Promax SL 15 Heat ErP
G.C.No41 592 35
Potterton Promax SL 18 Heat ErP
G.C.No41 592 36
Potterton Promax SL 24 Heat ErP
G.C.No41 592 37
© Baxi Heating UK Ltd 2015 All rights reserved. No part of this publication may
be reproduced or transmitted in any form or by any means, or stored in any
retrieval system of any nature (including in any database), in each case whether
electronic, mechanical, recording or otherwise, without the prior written
permission of the copyright owner, except for permitted fair dealing under
Copyrights, Designs and Patents Act 1988.
Applications for the copyright owner’s permission to reproduce or make other
use of any part of this publication should be made, giving details of the proposed
use, to the following address:
The Company Secretary, Baxi Heating UK Limited,
Brooks House, Coventry Road, Warwick. CV34 4LL
Full acknowledgement of author and source must be given.
WARNING: Any person who does any unauthorised act in relation to a
copyright work may be liable to criminal prosecution and civil claims for damages.
1.0 Operating the Boiler 3
2.0 Troubleshooting 4
3.0 Clearances 6
4.0 Care of the Boiler 7
5.0 Disposal 7
6.0 Legislation 8
7.0 Warranty & Service 9
8.0 ErP Information 11
9.0 Emergency 14
10.0 Notes 15
Section Page
Contents
0086
ISO 9001
FM 00866
The Benchmark Scheme
Baxi Heating UK Ltd is a licensed member of the Benchmark Scheme which aims
to improve the standards of installation and commissioning of domestic heating
and hot water systems in the UK and to encourage regular servicing to optimise
safety, efficiency and performance.
Benchmark is managed and promoted by the Heating and Hotwater Industry
Council. For more information visit www.centralheating.co.uk

1.0 Operating the Boiler
3
© Baxi Heating UK Ltd 2015
1.1 In Operation
1. The Potterton Promax SL Heat is a range of high efficiency
condensing boilers.
2. In common with other condensing boilers its exceptional
efficiency means the flue gases are cooled to such an extent
that steam is often visible at the outside flue terminal.
3. The amount produced depends on system design, product
use and outside air temperature but it is not harmful to the
individual or the working of the boiler in any way.
4. Other Controls
A Potterton Electronic Programmer or other type of clock
should have been fitted in your system, together with heating
and hot water controls. Full instructions on the use of these
controls will have been supplied with them.
1.2 To Light
1. Ensure that the main gas and electricity supplies to the boiler
are ON.
2. The fan will start to run and after a short period the ignition
spark will commence. Sparking will continue until the flame is
established then stop automatically. Check that a flame is
visible through the sight glass.
Sight Glass

2.0 Troubleshooting
4© Baxi Heating UK Ltd 2015
Boiler not working
START
Make sure the gas
supply is turned ON
and check if other
gas appliances are
operating (e.g. fire,
cooker).
NO
If no gas, consult
your supplier.
Is there electricity to the
boiler ?
Check electrical supply to
boiler is switched on.
NO
YES Ignition Spark will commence
Boiler operating
satisfactorily.
NO
YES
YES
YES Boiler fails to light ?
YES
Press the Reset Button
If boiler will not light.
CONTACT YOUR
INSTALLER OR
SERVICE
ENGINEER.
Boiler flame established
(Check that a flame is visible
through the sight glass)
Sight Glass
YES
Reset Button

2.0 Troubleshooting
5
© Baxi Heating UK Ltd 2015
Is the Timer ON and
calling for heat ?
Is the Room Thermostat (if
fitted) set high enough ?
12
1
2
3
4
5
6
7
8
9
10
11
Typical
examples of
external timer
Ensure timer is set for Central
Heating ON (see any
instructions supplied with timer)
NO
YES YES
NO
15
10
5
20
25
15
10
5
20
25
Turn Room Thermostat
to maximum setting
(typical example shown)
If you don’t know what you need to do
to get the boiler to light, or need help
with the system and controls, contact
your installer as soon as possible
CH ON CH OFF

3.0 Clearances
6© Baxi Heating UK Ltd 2015
50mm
600mm
390mm
200mm
5mm Min
5mm Min
5mm
500mm
For Servicing
Purposes
Fig. 1
Fig. 2 In Operation
At Least 1.5°
280mm
3.1 For your Safety
NOTE: Only qualified persons are authorised to
assemble, install and maintain the installation.
1. This appliance must have been installed in accordance
with the manufacturer’s instructions and the regulations
in force.
2. Any modification 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.
3. Your boiler must not be operated without the casing
correctly fitted.
4. Do not interfere with any sealed components on this
boiler.
5. Take note of any warning labels on your boiler.
6. Your boiler should have the following minimum
clearances for Safety and Maintenance
(Figs. 1 & 2):-
Top - 200mm
Bottom - 50mm
Left side - 5mm
Right Side - 5mm
Front - 5mm (In Operation)
- 500mm (For Servicing)
7. If your boiler is installed in a compartment, do not use
it for storage purposes. Do not obstruct any purpose
provided ventilation openings.
8. Flammable materials must not be stored in close
proximity to your boiler.
9. Avoid skin contact when your boiler is in operation, as
some surfaces may get hot e.g. pipework.
10. Ensure that the flue terminal, outside the house,
does not become damaged or obstructed, particularly
by foliage.
11. It is important that the condensate drain system is
not blocked, modified or damaged in any way as this
would affect the operation of your boiler. Your installer
should have insulated any exposed pipework.
GB - Heating Industry definition meaning England, Scotland,
Wales, Northern Ireland, Isle of Man and the Channel Isles

4.0 Care of the Boiler
7
© Baxi Heating UK Ltd 2015
4.1 Cleaning the Outercase
1. The painted panels should be wiped with a damp cloth and
then dried completely. DO NOT USE ABRASIVE CLEANING
AGENTS.
4.2 Frost Protection
1. The boiler does not have integral frost protection. It is
recommended that the installer fits a suitable protection device
to the system controls if required. For frost protection the
boiler must not be switched off at the isolation switch on the
wall.
5.1 Disposal and Recycling
NOTE: Removal and disposal of the boiler must be
carried out by a qualified person in accordance with
local and national regulations.
5.0 Disposal

6.0 Legislation
8© Baxi Heating UK Ltd 2015
6.1 Installation, Commissioning, Service & Repair
1. This appliance must be install in accordance with the
manufacturer’s instructions and the regulations in force. Read
the instructions fully before installing or using the appliance.
2. In GB, this must be carried out by a competent person as
stated in the Gas Safety (Installation & Use) Regulations.
3. Definition of competence: A person who works for a Gas
Safe registered company and holding current certificates in the
relevant ACS modules, is deemed competent.
4. IN IE (Eire), 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.
All Gas Safe registered engineers carry an ID card with their
licence number and a photograph. You can check your
engineer is registered by telephoning 0800 408 5500 or online
at www.gassaferegistered.co.uk
The boiler meets the requirements of Statutory Instrument
“The Boiler (Efficiency) Regulations 1993 No 3083” 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 0086.
Product/Production certified by:
Notified Body 0086.
Ref: 86-BL-647
For GB/IE only.
6.2 Benchmark Commissioning Checklist
1. Please ensure that the installer has fully completed the
Benchmark Checklist on the inside back pages of the
installation instructions supplied with the product and that you
have signed it to say that you have received a full and clear
explanation of its operation. The installer is legally required to
complete a commissioning checklist as a means of complying
with the appropriate Building Regulations (England and
Wales).
2. All installations must be notified to Local Area Building
Control either directly or through a Competent Persons
Scheme. A Building Regulations Compliance Certificate will
then be issued to the customer who should, on receipt, write
the Notification Number on the Benchmark Checklist.
3. This product should be serviced regularly to optimise its
safety, efficiency and performance. The service engineer should
complete the relevant Service Record on the Benchmark
Checklist after each service.
4. The completed Benchmark Checklist may be required in the
event of any warranty work.

7.0 Warranty & Service
9
© Baxi Heating UK Ltd 2015
7.1 General
To make sure your boiler warranty is activated and maintained,
it is essential that the:
1. Benchmark checklist is completed by your installer
2. Warranty is registered with Baxi
3. Boiler has an annual service
Please note that failure to adhere to terms and conditions will
make your warranty invalid.
7.2 Standard Warranty Terms and Conditions
Warranty Registration, Service & Repair
For full terms and conditions, visit www.baxi.co.uk/terms.
Benchmark Checklist
The Benchmark Checklist will be completed by your installer
and records that the boiler has been installed and
commissioned correctly. It can be found at the back of the
installation and service manual and should be kept in a safe
place for the life of the boiler. We will check that the
Benchmark Checklist has been completed on an in-warranty
visit.
Ways to register your warranty
If your boiler is eligible for an extended warranty, your installer
may register the product on your behalf and provide you with
the relevant documentation. Please check with your installer.
Should this not be the case, you can register your warranty
online at www.baxi.co.uk/registration
To activate a standard two year warranty, please use one of
the following methods:
• Freephone 0800 013 7989 or
• Return the enclosed registration card

7.0 Warranty & Service
10 © Baxi Heating UK Ltd 2015
Annual Service
A service must be completed every 12 months from the
date of installation to maintain your warranty.
This service must be completed by one of the following:
• A Gas Safe registered installer/engineer
• Baxi Customer Support; call us 0344 871 1525
Please make sure that your engineer has logged the service
information at the back of the installation and service manual.
You will be asked for your service history on any in-warranty
repair visit.
If you experience a problem with your boiler
For any in or out of warranty repair, Baxi Customer Support is
on hand to help you. Call our award-winning team to arrange
for one of our nationwide team of Gas Safe registered
engineers to visit.
If your product is in warranty, everything is free of charge,
subject to our warranty terms and conditions. If it is out of
warranty, we can still help and offer a range of options you can
choose from to suit your needs.
Contact Baxi Customer Support 0344 871 1525
Opening hours
Monday - Friday, 8.00am - 6.00pm
Weekends and Bank Holidays, 8.30am - 2.00pm
Please note calls may be recorded for training and monitoring
purposes.
When contacting Baxi Customer Support, please have the
following information to hand:
• Boiler serial number. This can be found on the
appliance.
• Proof of purchase if you do not have the boiler
serial number.
Please note that for in-warranty repairs, our engineers will ask
to see your service history record, completed Benchmark
Checklist and details of your installer. These can all be found in
the installation and user manual.
Information Label

1.0 Introduction
© Baxi Heating UK Ltd 2015
8.0 ErP Information
11
8.1 Product Fiche - Boiler Space Heaters
Product fiche for boiler space heaters
Seasonal space heating energy efficiency class
Rated heat output
(Prated or Psup)
Seasonal space heating energy efficiency
Annual energy consumption
Sound power level LWA indoors
See
For specific precautions about assembling, installing and maintaining,
consult the relevant section as detailed on the Contents page.
kW
%
kWh
GJ
dB
A A A A
Potterton Promax SL Heat ErP 12 15 18 24
12 15 18 24
91 91 92 92
10550 13187 15652 20870
38 47 56 75
38 46 49 52

8.0 ErP Information
12 © Baxi Heating UK Ltd 2015
8.2 Package Fiche - Boilers
Package fiche for boilers indicating the space heating energy efficiency of the package
AD-3000743-01
%
1
‘I’
2
%+
3
%( - ‘I’ ) x 0.1 = ±
4
%(‘III’ x + ‘IV’ x ) x 0.9 x ( /100) x = +
(1)
A* = 0.95, A = 0.91,
B = 0.86, C = 0.83,
D - G = 0.81
5
%( - ‘I’ ) x ‘II’ = +
6
%0.5 x 0.5 x = -
54
<30%
G F E D C B A A
+A ++ A +++
%+ (50 x ‘II’) =
7
7
%
ecivedralosfoehcfimorf
pmuptaehyratnemelppuSDNAnoitubirtnocraloS
noitubirtnocraloS
dellatsniecnoycneicfifeygrenelautcastiotdnopserroctonyamehcfisihtnirofdedivorpstcudorpfoegakcapehtfoycneicfifeygreneehT
in a building, as this efficiency is influenced by further factors such as heat loss in the distribution system and the dimensioning of the
products in relation to building size and characteristics.
?C°53tasrettimetaeherutarepmetwolhtiwdellatsnipmuptaehyratnemelppusdnarelioB
egakcap
fossalcycneicfifeygrenegnitaehecapslanosaeS
egakcapfoycneicfifeygrenegnitaehecapslanosae
S
RO
)%ni(ycneicfifeygrenegnitaehecapslanosaeS
pmuptaehyratnemelppuS
gnitarknaT
ni(ycneicfiferotcelloC
%)
)³mni(emulovknaT)²mni(ezisrotcelloC
)%ni(ycneicfifey
grenegnitaehecapslanosaeS
reliobyratnemelppuS
,%5.1=IIIssalC,%2=IIssalC,%1=IssalC
Class IV = 2%, Class V = 3%, Class VI = 4%,
Class VII = 3.5%, Class VIII = 5%
lortnocerutarepmeT
reliobfoycneicfifeygrenegnitaehecapslanosaeS
59.0esu,AevobasignitarknatfI)1(
eulavrellamstceles
pmuptaehfoehcfimorf
pmuptaehfoehcfimorf
reliobfoehcfimorf
lortnocer
utarepmetfoehcfimorf
I
I
The value of the seasonal space heating energy efficiency of the
preferential space heater, expressed in %.
II
The factor for weighting the heat output of preferential and supple
mentary heaters of a package as set out in the following table.

8.0 ErP Information
13
© Baxi Heating UK Ltd 2015
8.2 Package Fiche - Boilers (cont)
Package efficiency
Temperature control X
Potterton Promax SL
%
Temperature control Y %
The value of the mathematical expression: 294/(11 ʷPrated),
whereby ‘Prated’ is related to the preferential space heater.
The value of the mathematical expression 115/(11 ʷPrated),
whereby ‘Prated’ is related to the preferential space heater.
Weighting of boilers
00 0
0.1 0.3 0.37
0.2 0.55 0.70
0.3 0.75 0.85
0.4 0.85 0.94
0.5 0.95 0.98
0.6 0.98 1.00
≥ 0.7 1.00 1.00
(1) The intermediate values are calculated by linear interpolation between the two adjacent values.
(2) Prated is related to the preferential space heater or combination heater.
III
IV
I
V
Psup / (Prated + Psup)(1)(2) II, package without hot water storage tank II, package with hot water storage tank
12 15 18 24

9.0 Emergency
14 © Baxi Heating UK Ltd 2015
If you smell gas
Do not operate light switches
Do not operate any electrical equipment
Do not use a telephone in the hazardous area
Extinguish any naked flame and do not smoke
Open windows and doors in the hazardous area
Turn off the gas supply at the meter
Warn any other occupants and vacate the premises
Telephone the National Gas Emergency Service on:-
0800 111 999
Faulty boiler
If it is known or suspected that a fault exists
on the boiler, it must not be used until the fault
has been corrected by a competent person.
Warning !

10.0 Notes
15
© Baxi Heating UK Ltd 2015

Comp No7647603 - 01 (10/15)
0086
Baxi Customer Support
0344 871 1525
Opening hours
Monday - Friday, 8.00am-6.00pm
Weekends and Bank Holidays, 8.30am-2.00pm
Please note calls may be recorded for training and monitoring purposes
baxi.co.uk
Register now to activate your warranty:
www.baxi.co.uk/registration
For the warranty to be maintained, please make sure...
Benchmark checklist is completed
Warranty is registered with Baxi
The boiler has an annual service
1
2
3
For full terms and conditions, visit www.baxi.co.uk/terms. Failure to adhere to
terms and conditions will void your manufacturer’s warranty.
Baxi
Brooks House,
Coventry Road,
Warwick, CV34 4LL
Please ensure the boiler is installed in accordance with these installation
instructions and that you adhere to the Building Regulations.
e&oe
All descriptions and illustrations provided in this document have been
carefully prepared but we reserve the right to make changes and
improvements in our products which may affect the accuracy of the
information contained in this leaflet. All goods are sold subject to our
standard Conditions of Sale which are available on request. part of