Potterton PROMAX 24 User manual

Promax Store
User Guide
Condensing Boiler with Integrated Hot Water Storage
24
en
United Kingdom
Please keep these instructions in a safe place.
If you move house, please hand them over to the next occupier.

Natural Gas
Potterton Promax 24 Store ErP
G.C.No41 592 47 (90 litre)
G.C.No41 592 48 (115 litre)
G.C.No41 592 49 (150 litre)
2© Baxi Heating UK Ltd 2015
1.0 Quick Reference Guide 3
2.0 Troubleshooting 4
3.0 Repressurising System 6
4.0 Clearances 7
5.0 Care of the Boiler 8
6.0 Legislation 9
7.0 Programmer 10
8.0 Warranty & Service 14
9.0 ErP Information 16
10.0 Notes 20
11.0 Emergency 23
12.0 Disposal 23
Section Page
Contents
Advice to Users
Promax Store provides domestic hot water from a
high performance, high efficiency version of a
traditional storage cylinder. Whenever hot water is
used it is replaced by fresh cold water and, provided
this occurs when the programmer is in a ‘DHW ON’
period, the boiler will operate to raise it to the
temperature you have selected. This will take from a
few minutes to around 20 minutes, depending on how
much hot water has been drawn from the storage
cylinder. Please adjust the time and temperature
settings on the programmer according to your
experience of the boiler’s performance and your
household’s need for hot water.
© 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 Ltd,
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.
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
0086
ISO 9001
FM 00866
IMPORTANT
Please read and understand all these instructions before commencing installation.
Please leave this manual with the customer for future reference.

3
© Baxi Heating UK Ltd 2015
1.0 Quick Reference Guide
2
1
0
4
3
bar
ON/OFF/Reset
Selector Switch
Display Central Heating
Temperature Control
Domestic Hot Water
Temperature Control
System
Pressure Gauge
Programmer
OFF Position
The boiler will not operate.
Central Heating Temperature Control
Turn the knob clockwise to increase or anticlockwise to decrease the
temperature. Range 25° C to 80° C.
Domestic Hot Water Temperature Control
Turn the knob clockwise to increase or anticlockwise to decrease the temperature.
Range approximately 45° C to 65° C.
Central Heating Indicator - The indicator will illuminate when the boiler is in the
central heating mode.
Domestic Hot Water Indicator - The indicator will illuminate when hot water is
being supplied to a tap or shower.
Burner On Indicator - The indicator will illuminate when the burner has fired and is
heating your central heating or domestic hot water.
Boiler Output Temperature - In either the central heating or domestic hot water
position the display will illuminate showing the current boiler temperature in
degrees centigrade.
Central Heating System Pressure - The normal operating water pressure is
between 1 and 2.0 bar. If the pressure exceeds 3 bar the safety pressure valve will
operate and a fault is indicated. Contact your Installer.
Central Heating & Hot Water
Both Heating & Hot Water will operate.
Hot Water
Hot Water only will operate.
Reset
Hold for approx 5 seconds and release.
Promax HE Store
2
1
0
4
3
bar

4© Baxi Heating UK Ltd 2015
2.0 Troubleshooting
START
Make sure the gas supply
is turned ON and check if
other gas appliances are
operating (e.g. fire, cooker).
If no gas, consult your
supplier.
Is the ON/OFF/Reset
Select Switch in the
( ) position ?
Is the ( ) or ( ) light
on and the ( ) on ?
Check electricity to the
boiler is switched on.
Is the display lit ?
Display
Central Heating
Indicator
Domestic Hot
Water Indicator
Burner On
Indicator
Boiler operating satisfactorily.
2
1
0
4
3
bar
Is the Central Heating
System Pressure between
1 and 2.5 bar ?
If the reading falls below 1 bar
repressurise the system as
described in section 3.0.
Does the display show an
error code e.g. E133, E110 ?
Boiler not working
NO
NO
YES YES
YES
NO
Turn the ON/OFF/Reset
Selector Switch to Reset.
Error Code E119 showing
low pressure.
NO
YES
YES
NO
If boiler does
not Reset

5
© Baxi Heating UK Ltd 2015
2.0 Troubleshooting
Is the Integral Programmer
ON and calling for heat ?
Ensure programmer is set for
Central Heating ON or Hot
Water ON (see section 7.4 for
setting the programmer).
Is the Room Thermostat (if
fitted) set high enough ?
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.
YES
NO
CONTACT YOUR
INSTALLER OR
SERVICE ENGINEER.
YES
ON
M T W T F SSHW CH
ADVANCE HW CH
CH
COPY
BOOST
ENTER+
_
SET
RUN
CLOCK
HW PROG
CH PROG
AUTO
ALL DAY
24 HR
OFF
HW
ADVANCE
AM

6© Baxi Heating UK Ltd 2015
3.0 Repressurising System
2
1
0
4
3
bar
2
1
0
4
3
bar
3.1 Central Heating System Pressure
1. The normal operating water pressure is
between 1 and 2.5 bar (Fig. 1). If the pressure
exceeds 3 bar the safety pressure valve will
operate and a fault is indicated. Contact your
installer.
2. It may be necessary to repressurise the system
occasionally (Fig. 2). A filling device (the filling
loop) is fitted on the boiler itself.
3. The filling loop consists of two taps and a
separate metal braided hose pipe.
4. Only when repressurising should the hose be
connected between the two taps. No tools are
necessary for this, but ensure that the wing nuts
on the hose pipe ends are tightened onto the
taps.
5. Fully open one of the taps first, and then while
watching the pressure gauge, carefully open the
second tap.
6. When the needle on the gauge is indicating 1
or more, turn both taps off.
7. Disconnect the hose from the taps (a small
amount of water may be present) and remove it.
Keep the hose in a safe place for future use.
Fig. 1
Fig. 2
Normal Pressure
Requires
Repressurising
RWC
Promax Store
Filling Loop

7
© Baxi Heating UK Ltd 2015
4.0 Clearances
Fig. 4
4.1 For your Safety
This appliance must have been installed in
accordance with the manufacturer’s instructions
and the regulations in force.
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.
Your boiler must not be operated without the
casing correctly fitted and forming an adequate
seal.
Do not interfere with any sealed components on
this boiler.
Take note of any warning labels on your boiler.
Your boiler should have the following minimum
clearances for Safety and Maintenance
(Fig. 4 & 5):-
Top - 250mm
Left side - 25mm
Right Side - 25mm
Front - 50mm (In Operation)
- 450mm (For Servicing)
If your boiler is installed in a compartment, do not
use it for storage purposes. Do not obstruct any
purpose provided ventilation openings.
Flammable materials must not be stored in close
proximity to your boiler.
Avoid skin contact when your boiler is in
operation, as some surfaces may get hot i.e.
pipework, flue.
Ensure that the flue terminal, outside the house,
does not become damaged or obstructed,
particularly by foliage.
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
25mm
25mm
250mm
450mm
for Servicing
purposes
50mm
In operation
Fig. 5

8© Baxi Heating UK Ltd 2015
5.0 Care of the Boiler
5.1 Cleaning the Outercase
1. The painted panels should be wiped with a
damp cloth and then dried completely. DO NOT
USE ABRASIVE CLEANING AGENTS.
5.2 Protection & Precautions
1. The boiler incorporates an integral frost
protection feature that will operate in both modes.
If the boiler temperature falls below 4° C, the
boiler will fire until a temperature of 15° C is
reached.
2. If a system frost thermostat has been fitted
(your installer will be able to advise you), then to
operate correctly and protect your system, the
gas and electricity must be left on and the
appliance set in the central heating mode.
3. The boiler incorporates an integral pump
protection feature which monitors the time since
the pump last operated and will operate the
pump for approximately 1 minute if it has not run
in the last 24 hours.

9
© Baxi Heating UK Ltd 2015
6.0 Legislation
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 0085.
Product/Production certified by:
Notified Body 0086.
For GB/IE only.
6.2 Benchmark Commissioning Checklist
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).
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.
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.
The Benchmark Checklist may be required in the event of
any warranty work.

10 © Baxi Heating UK Ltd 2015
7.0 Programmer
7.1 Introduction
1. The built-in programmer is an electronic 7-day
central heating and hot water control, designed to be
easy to use and understand. Properly programmed it
will help you save energy and create a comfortable
environment in your home.
2. For convenience, morning and evening ON/OFF
periods have been pre-set in the programmer ‘memory’
and will be retained, even if the mains power supply is
interrupted. Details of these ON/OFF periods are given
in the next section, together with step-by-step setting
instructions.
3. In run mode, any combination can be set (using the
ENTER and COPY buttons) e.g.
Hot Water Programme C/Heating Programme
AUTO AUTO
or ALL DAY
or 24 HOUR (Continuous)
or OFF
4. The Promax programmer also offers the following
features :
* Up to 3 On-Off time periods every 24 hours plus
the option of programming different times for each
day of the week.
* A central heating ADVANCE button allowing an
instant switch from OFF to ON or ON to OFF
without affecting normal settings.
* A hot water BOOST button giving an extra one hour
period.
7.2 Buttons, Indicators & Symbols
Most of the control buttons on the programmer are dual
purpose. They can be used as SET buttons for inputting
time of day. ON/OFF times, etc, or as SELECT buttons
for using the advance facility and choosing override
programme options.
Figure 7 can be used to identify the SET buttons,
indicators and symbols.
7.3 Setting the Programmer
1. Turn the appliance selector switch to central heating
and hot water position.
2. Setting Day and Time
NOTE: When setting the day, time of day or switch
times, if a period exceeding 60 seconds is allowed
to elapse between button presses, the programmer
will automatically return to normal RUN mode and
any changes made since the last press of the
ENTER button will not be saved.
i) Press the SET button so that the SET INDICATOR is
pointing to the CLOCK position on the front of the
programmer. the DAY OF THE WEEK INDICATOR will
now flash (see Fig. 9).
THE RECOMMENDED COMBINATION IS :
Hot Water Programme C/Heating Programme
ALL DAY AUTO
The display should then look like this :
AM
M T W T F SSHW CH
RUN
CLOCK
HW PROG
CH PROG
AUTO
ALL DAY
24 HR
OFF
Fig. 8
M T W T F SSHW CH
RUN
CLOCK
HW PROG
CH PROG
AUTO
ALL DAY
24 HR
OFF
AM
Fig. 9
ON
M T W T F SSHW CH
ADVANCE HW CH
CH
COPY
BOOST
ENTER+
_
SET
RUN
CLOCK
HW PROG
CH PROG
AUTO
ALL DAY
24 HR
OFF
HW
ADVANCE
AM
Fig. 7 134
2
6 7 8910
5
1 Set Indicator
2 Set Positions
3 Time of Day
4 Day of Week Indicator
5 ON/OFF Switch Period Symbol
6 SET Button
7 Minus (-) Adjust Button
8 Plus (+) Adjust Button
9 ENTER Button
10 COPY Button