Baxi Luna Platinum 1.24 User manual

User Guide
Condensing Combination Boiler
124 - 128
Combi
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 2016
© Baxi Heating UK Ltd 2016 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 Quick Reference Guide 3
2.0 Troubleshooting 4
3.0 Temperature Adjustment &
Care of the Boiler 6
4.0 Repressurising System & ‘Service Due’ 7
5.0 Clearances 8
6.0 Error Codes 9
7.0 Legislation 10
8.0 Warranty & Service 11
9.0 ErP Information 13
10.0 Emergency 17
11.0 Disposal 17
Section Page
Contents
Boiler Controls - see opposite page for
Operating Quick Reference Guide
(Fascia Cover removed for clarity)
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
Model Range
Baxi 124 Combi
G.C.No 47-077-25
Baxi 128 Combi
G.C.No 47-077-26
This boiler can be used by children aged 8 years
and above and by persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge when they have been given
supervision or instruction concerning the safe use
of the device and understand the resulting risks.
Children must not be allowed to play with the
appliance. Cleaning and user maintenance must not
be carried out by children without supervision.
Warning !

1.0 Quick Reference Guide
3
© Baxi Heating UK Ltd 2016
R
R
Domestic Hot Water and Central Heating OFF (frost
protection still enabled)
Indicates errors that prevent burner from starting
Error - Not resettable by user
Water pressure too low
Indicates a resettable error
Indicates navigation in programming mode (parameter)
Indicates navigation in programming mode
Generic error
Burner lit
DHW request
Heating mode
Units for temperature
Units for pressure
Service due
Display Description
Central Heating
Temperature Adjustment
Boiler Information View Standby - Reset - Esc
R
Standby - Reset - Esc
Boiler Information View
Increase Central Heating Temperature Button *
Decrease Central Heating Temperature Button *
* Important Note: If your control system is fitted with
the Optional Outdoor Sensor, these buttons will affect
it’s operation. Please consult your installer for advice.
Increase Domestic Hot Water Temperature Button
Decrease Domestic Hot Water Temperature Button
Summer / Winter / Only Heating Mode Button
Key to Controls
Display showing all available segment
Summer - Winter - Only Heating
Mode
Domestic Hot Water
Temperature Adjustment
Summer - Domestic Hot Water only
request mode
Winter - Domestic Hot Water & Central
Heating request mode
Only Heating - Only Central Heating
request mode
NOTE: When altering any settings it is necessary that
the buttons are FIRMLY pressed for several seconds.
R

2.0 Troubleshooting
4© Baxi Heating UK Ltd 2016
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 ? Is the display lit ?
R
Check electrical supply to
boiler is switched on.
NO
YES Is the Burner Flame
symbol showing ?
R
Burner Flame
(Indicates burner
is on)
Boiler operating
satisfactorily.
NO
YES
YES
YES Is the E and R symbol
illuminated or flashing ?
R
YES
Press the Reset Button
Error
Symbol
If it does
not reset
CONTACT YOUR
INSTALLER OR
SERVICE
ENGINEER.
R
Reset
Symbol
Is the Spanner symbol
illuminated or flashing ?
YES
Spanner
Symbol
Boiler
Temperature
Central Heating
Error Code
Flame
Failure
OR
Reset Button

2.0 Troubleshooting
5
© Baxi Heating UK Ltd 2016
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
bar
0
1
2
3
4
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 4.1.
NO
R
Error Code 118 showing low
pressure.
YES
*To display the water pressure
press 6 times. ‘05’ will alternate
with the system pressure.
(NOTE: When the pump is running
the gauge under the boiler may
show a slightly different reading to
the display)

3.0 Temperature Adjustment &
Care of the Boiler
6© Baxi Heating UK Ltd 2016
R
3.1 To increase or decrease the boiler temperature
1. Press to increase the Central Heating temperature.
2. Press to decrease the Central Heating temperature.
NOTE: An overheat thermostat (NTC) is positioned in the
heat exchanger which shuts down the appliance if the boiler
temperature exceeds 100°C. Press button to re-
establish normal operating conditions.
3.2 To increase or decrease the domestic hot water
temperature
1. Press to increase the Domestic Hot Water
temperature.
2. Press to decrease the Domestic Hot Water
temperature.
3.3 Summer - Winter - Only Heating Mode
1. Press button until the required mode appears:-
2. See 3.1 or 3.2 to set the required temperature.
3.4 Cleaning the Outer Case
The painted panels should be wiped with a damp cloth and then
dried completely. DO NOT USE ABRASIVE CLEANING
AGENTS.
3.5 Boiler Frost Protection
1. The boiler incorporates an integral frost protection feature
that will operate in both Central Heating & Domestic Hot
Water modes, and also when in standby ( displayed).
2. If the boiler temperature falls below 5° C, then the boiler will
operate until the water temperature has been raised.
3. Further protection may be required for the system. Consult
your installer for details.
3.6 Information Display
1. The table opposite shows information that can be displayed
by pressing the button.
2. Press to return to the normal display.
Central Heating
Temperature Adjustment
R
Display Screen
Domestic Hot Water
Temperature Adjustment
R
Summer - Domestic Hot Water only
request mode
Winter - Domestic Hot Water & Central
Heating request mode
Only Heating - Only Central Heating
request mode
Summer - Winter - Only Heating
Mode
The button can be pressed so that the display shows the following
information:-
1 press - ‘00’ alternates with Sub-Code (only when fault on boiler) or ‘000’
2 presses - ‘01’ alternates with CH Flow Temperature
3 presses - ‘02’ alternates with Outside Temperature (where Sensor fitted)
4 presses - ‘03’ alternates with DHW Temperature
5 presses - ‘04’ alternates with DHW Temperature
6 presses - ‘05’ alternates with System Water Pressure
7 presses - ‘06’ alternates with CH Return Temperature
8 presses - ‘07’ alternates with Flue Temperature
9 presses - ‘08’ alternates with Heat Exchanger Temperature
R

7
© Baxi Heating UK Ltd 2016
bar
0
1
2
3
4
bar
0
1
2
3
4
Normal Pressure
Requires
Repressurising
Pressure Gauge
Front and Side Panel
removed for clarity
View Under
Appliance
R
‘Service Due’
Message
‘Sd’ will show for
three seconds,
alternating with the
boiler temperature.
Fig. 1
Fig. 2
4.0 Repressurising System & ‘Service Due’
4.1 Central Heating System Pressure
1. The water pressure in the central heating system is indicated
by the pressure gauge and also can be viewed on the display
when there is power to the boiler.
2. To display the water pressure press 6 times. ‘05’ will
alternate with the system pressure. (NOTE: When the pump is
running the gauge under the boiler may show a slightly different
reading to the display).
3. With the system cold and the boiler not operating the
pressure should be at least 0.5 bar. During operation the
pressure should not exceed 2.5 bar, and will normally be
between 1.0 and 1.5 (Fig. 1).
4. A pressure of 3 or greater indicates a fault (E117 displayed).
The safety pressure relief valve will operate, at a pressure of 3
(Fig. 3). It is important that your Installer or Service Engineer is
contacted as soon as possible.
5. 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. 2). Error Code E118 will be shown on the
display.
4.2 To Re-Pressurise the System
(Using Temporary Filling Loop)
1. It may be necessary to repressurise the system occasionally
(when the water pressure falls below 0.7 bar). A filling device
(filling loop) will be fitted on the system. This may be on the
boiler itself or on pipework near to the boiler. Seek advice from
your installer.
2. If the water pressure requires regular re-pressurising a fault or
leak is indicated (see section 4.1). Seek advice from your installer.
3. The filling loop will consist of two isolating taps and a separate
temporary filling pipe with connection fittings.
4. Fit the temporary filling pipe, and tighten the two nuts on the
pipe to 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 pressure gauge indicates between 1
and 2 bar, turn both taps off.
7. The temporary filling loop pipe must be disconnected and
completely removed after the system is pressurised. (Ensure the
two isolating taps are in the OFF position before disconnecting.)
Keep the pipe in a safe place.
4.3 ‘Service Due’ Message (Fig. 3)
1. After 11 months operation the ‘Service Due’ message will be
shown on the boiler display.
2. Please contact your Installer, Annual Service Provider or Baxi
Customer Support on 0344 871 1545 to arrange your Annual
Service.
Fig. 3

5.0 Clearances
8© Baxi Heating UK Ltd 2016
5.1 For your Safety
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. 4 & 5):-
Top - 175mm
Bottom - 170mm*
Left side - 5mm
Right Side - 5mm
Front - 5mm (In Operation)
- 450mm (For Servicing)
*This is MINIMUM recommended dimension. Greater
clearance will aid installation and maintenance.
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
170mm* Min
700mm
390mm 5mm Min
5mm Min
5mm
450mm
For Servicing
Purposes
Fig. 4
Fig. 5 In Operation
At least
1.5°
300mm
(290mm with flap removed)
175mm Min
(300mm Min if using
80/125 flue system)

6.0 Error Codes
9
© Baxi Heating UK Ltd 2016
6.1 List of Error Codes
1. The display shows two types of signals: and .
In both cases the display shows symbol and the numeric
value of the error (see the “error table” below).
2. The spanner cannot be reset by the user. Please
contact your Installer, Annual Service Provider or Baxi
Customer Support on 0344 871 1545.
3. Fault errors can be reset by pressing the
button.
WARNING: If an error code (if different from the ones
described below) appears on the display or a certain fault
appears frequently, contact your Installer, Annual Service
Provider or Baxi Customer Support on 0344 871 1545.
R
RR
Gas Valve Connection Cable
Gas Valve Fault
Central Heating NTC Fault
Flue NTC Fault
Central Heating Return NTC Fault
Calibration Required
Pre-circulation Fault
Safety Thermostat Operated
Primary System Water Pressure Too High
Primary System Water Pressure Too Low
Circulation Fault (Primary)
Flame Failure
Flue NTC Operated
Interruption Of Gas Supply or Flame Failure
Elapsed Time - Gas Valve Open Without Gas
Interruption Of Gas Supply (Internal Error)
Flow/Return Sensor Temperature Test
Fan or Fan Wiring Fault
Circulation Fault (Dry Fire)
Hot Water NTC Fault
False Flame
09
15
20
28
40
55
109
110
117
118
125
128
130
133
134
135
154
160
270
321
384
Table Of Error Codes

10 © Baxi Heating UK Ltd 2016
7.0 Legislation
7.1 Installation, Commissioning, Service & Repair
1. 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.
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.gassaferegister.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:-
The product data in Section 9.0 satisfies the requirements of
EU regulations no. 811/2013 & no. 813/2013 supplementing
directive 2010/30/EU
Type test for purpose of Regulation 5 certified by:
Notified Body 0085.
Product/Production certified by:
Notified Body 0086.
For GB/IE only.
7.2 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.