ADVANCE
S U S T A I N A B L E C O M F O R T
®
MW-5000225-03
en
User Guide
Oil-fired condensing boilers
MODULENS O
AFC 18
AFC 24
AFC 30
Contents
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.1 Manufacturer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3.2 Installer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3.3 User's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1.2 Symbols used on the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.1 Ecodesign Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.2 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2.1 Technical data - Boiler space heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2.2 Boiler specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.2 Circulating pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4 Control panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4.1 Description of the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4.2 Description of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5.1 Browsing in the menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Shut-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
5.4 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.1 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.1.1 Setting the set point temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
6.1.2 Selecting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.1.3 Forcing domestic hot water production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1.4 Setting the contrast and brightness of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
6.1.5 Setting the time and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
6.1.6 Selecting a timer programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
6.1.7 Customising a timer programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Displaying the measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2.1 Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2.2 User level – #MEASURES menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.1 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.2 Specific instructions for the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.3 Periodic checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
7.4 Filling the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
7.5 Venting the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
7.6 Draining the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
8.1 Anti-short cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.2 Messages (Bxx or Mxx-type codes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.2.1 List of Bxx or Mxx type error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.3 Faults (Lxx or Dxx-type codes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.3.1 List of Lxx or Dxx type error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Contents
2 AFC 300026440 - v07 - 02082019
9 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1 Disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 Energy savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.3 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
10 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10.2 Terms of warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
11 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
11.1 Product fiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
11.2 Product fiche - Temperature Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
11.3 Package fiche - Boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Contents
300026440 - v07 - 02082019 AFC 3
1 Safety
1.1 Safety
Danger
This appliance can be used by children aged from
8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of
experience and knowledge if they have been
given supervision or instruction concerning use of
the appliance in a safe way and understand the
hazards involved. Children shall not play with the
appliance. Cleaning and user maintenance shall
not be made by children without supervision.
Important
This manual can also be found on our internet
site.
Caution
A disconnection method must be allowed in the
fixed pipes in accordance with the rules on
installation in force in the country.
Caution
If a power cord comes with the appliance and it
turns out to be damaged, it must be replaced by
the manufacturer, its after sales service or
persons with similar qualifications in order to
obviate any danger.
Caution
Respect the maximum water inlet pressure to
ensure correct operation of the appliance,
referring to the chapter "Technical
Specifications".
Danger
If you smell flue gases:
1. Switch off the appliance.
2. Open the windows.
3. Evacuate the property.
4. Contact a qualified professional.
1 Safety
4 AFC 300026440 - v07 - 02082019
Warning
According to the appliance settings:
The temperature of the flue gas pipes may
exceed 60 °C.
The radiator temperature may reach 95 °C.
The temperature of the domestic hot water may
reach 80 °C (depending on the set point
temperature and the activation of the anti-
legionella function).
Caution
Do not neglect to service the appliance. For
completely safe and optimum operation, you
must have your boiler regularly serviced by an
approved installer.
Before any work, switch off the power supply to
the appliance.
Avoid direct contact with the flame inspection
window.
1.2
Recommendations
Danger
Only qualified persons are authorised to
assemble, install and maintain the installation.
Regularly check the hydraulic pressure in the circuit:
Minimum pressure: 0.8 bar (0.08 MPa)
Recommended pressure: between 1.5 and 2 bar
(0.15 and 0.2 MPa)
Keep the appliance accessible at all times.
Never remove or cover the labels and data plates
affixed to appliances. Labels and data plates must be
legible throughout the entire lifetime of the appliance.
The appliance should be on Summer or Frost
protection mode rather than switched off to guarantee
the following functions:
Anti blocking of pumps
Frost Protection
1.3 Liabilities
1.3.1 Manufacturer's liability
Our products are manufactured in compliance with the
requirements of the various Directives applicable. They
are therefore delivered with the marking and any
documents necessary. In the interests of the quality of
1 Safety
300026440 - v07 - 02082019 AFC 5
our products, we strive constantly to improve them. We
therefore reserve the right to modify the specifications
given in this document.
Our liability as manufacturer may not be invoked in the
following cases:
Failure to abide by the instructions on installing and
maintaining the appliance.
Failure to abide by the instructions on using the
appliance.
Faulty or insufficient maintenance of the appliance.
1.3.2
Installer's liability
The installer is responsible for the installation and initial
commissioning of the appliance. The installer must
observe the following instructions:
Read and follow the instructions given in the manuals
provided with the appliance.
Install the appliance in compliance with prevailing
legislation and standards.
Carry out initial commissioning and any checks
necessary.
Explain the installation to the user.
If maintenance is necessary, warn the user of the
obligation to check the appliance and keep it in good
working order.
Give all the instruction manuals to the user.
1.3.3 User's liability
To guarantee optimum operation of the system, you
must abide by the following instructions:
Read and follow the instructions given in the manuals
provided with the appliance.
Call on a qualified professional to carry out installation
and initial commissioning.
Get your installer to explain your installation to you.
Have the required inspections and maintenance
carried out by a qualified installer.
Keep the instruction manuals in good condition close
to the appliance.
1 Safety
6 AFC 300026440 - v07 - 02082019
2 About this manual
2.1 Symbols used
2.1.1 Symbols used in the manual
This manual uses various danger levels to draw attention to special
instructions. We do this to improve user safety, to prevent problems and to
guarantee correct operation of the appliance.
Danger
Risk of dangerous situations that may result in serious personal
injury.
Danger of electric shock
Risk of electric shock.
Warning
Risk of dangerous situations that may result in minor personal
injury.
Caution
Risk of material damage.
Important
Please note: important information.
See
Reference to other manuals or pages in this manual.
2.1.2 Symbols used on the appliance
1 Alternating current.
2 Protective earthing.
3 Before installing and commissioning the appliance, carefully read
the instruction manuals provided.
4 Dispose of used products through an appropriate recovery and
recycling structure.
5 Caution: danger of electric shock, live parts. Disconnect the mains
power prior to carrying out any work.
6 Connect the appliance to the protective earthing.
2.2
Abbreviations
3CE: Collective piping for sealed boiler
3WV: Three-way valve
PCU: Primary Control Unit - Burner management PCB
PSU: Parameter Storage Unit - Storage of parameters for the PCU and
SU PCBs
SCU: Secondary Control Unit – DIEMATIC iSystem control panel PCB
SU: Safety Unit – Safety PCB
Fig.1
1 2
MW-1000123-2
1
2
3
4
5
6
2 About this manual
300026440 - v07 - 02082019 AFC 7
DHW: Domestic Hot Water
Hi: Lower heating value LHV
Hs: Higher heating value HHV
HL: High Load – DHW tank plate heat exchanger
SL: Standard Load – Coiled DHW tank
SHL: Solar High Load – Solar DHW tank plate heat exchanger
BM: Boiler module
CFC: Chlorofluorocarbon
2 About this manual
8 AFC 300026440 - v07 - 02082019
3 Technical specifications
3.1 Homologations
3.1.1 Ecodesign Directive
This product conforms to the requirements of European Directive
2009/125/EC on the ecodesign of energy-related products.
3.1.2 Certifications
Tab.1
CE identification no. CE : 1312 CN 5691
Type of connection Chimney : B
23
, B
23P
Forced flue: C
13(x)
, C
33(x)
, C
93(x)
Tab.2
Germany The boilers are compliant with the 1. BImSchV regulation, 2010 version.
Switzerland AEAI (Association of Cantonal Fire Insurance) approval no.: 24502
Belgium The boilers comply with the specifications of the Optimaz-Elite quality label.
The boilers comply with the requirements and standards laid down in the Royal Decrees of 8 Janu
ary 2004 and 17 July 2009.
3.2 Technical data
3.2.1 Technical data - Boiler space heaters
Tab.3 Technical parameters for boiler space heaters
Product name AFC 18 AFC 24 AFC 30
Condensing boiler Yes Yes Yes
Low-temperature boiler
(1)
No No No
B1 boiler No No No
Cogeneration space heater No No No
Combination heater Yes Yes Yes
Rated heat output
Prated
kW 17 23 29
Useful heat output at rated heat output and high tem
perature regime
(2)
P
4
kW 17.1 22.8 28.6
Useful heat output at 30% of rated heat output and
low temperature regime
(1)
P
1
kW 5.4 7.2 8.9
Seasonal space heating energy efficiency
ƞ
s
% 90 90 90
Useful efficiency at rated heat output and high tem
perature regime
(2)
ƞ
4
% 92.0 91.6 91.9
Useful efficiency at 30% of rated heat output and low
temperature regime
(1)
ƞ
1
% 96.9 96.1 95.7
Auxiliary electricity consumption
Full load
elmax
kW 0.162 0.165 0.189
Part load
elmin
kW 0.072 0.082 0.086
Stand-by
P
SB
kW 0.006 0.006 0.006
Other specifications
Standby heat loss
P
stby
kW 0.109 0.109 0.128
Ignition burner power consumption
P
ign
kW - - -
Annual energy consumption
Q
HE
GJ 54 74 93
3 Technical specifications
300026440 - v07 - 02082019 AFC 9
Product name AFC 18 AFC 24 AFC 30
Sound power level, indoors - for a type B air/flue gas
connection
L
WA
dB 61 61 61
Sound power level, indoors - for a type C air/flue gas
connection
L
WA
dB 58 63 59
Emissions of nitrogen oxides NO
x
mg/kWh 79 72 78
(1) Low temperature means for condensing boilers 30°C, for low temperature boilers 37°C and for other heaters 50°C return temperature
(at heater inlet).
(2) High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.
See
The back cover for contact details.
3.2.2 Boiler specifications
Tab.4 Test conditions:
O
2
5% at minimum output and 3% at maximum out
put
Maximum operating pressure - Primary circuit (heating water) 3 bar (0.3 MPa)
Maximum operating temperature 85 °C
Boiler temperature Can be set from 30 to 90 °C
Safety thermostat 105 °C
Min flow temperature 20 °C
Min. return temperature 20 °C
Room temperature 20 °C
Tab.5
Boiler Unit AFC 18 AFC 24 AFC 30
Minimum
output
Full output Minimum
output
Full output Minimum
output
Full output
Power input (LHV) kW 10.4 17.6 13.9 23.5 17.4 29.4
Nominal output (Pn) at 50/30
°C
kW 10.6 18.0 14.1 24.0 17.6 30.0
Nominal output (Pn) at 80/60
°C
kW 10.0 17.1 13.4 22.8 16.7 28.6
Hi efficiency 100%
Nominal
output (Pn)
at 80/60 °C
% 96.3 97.2 96.4 97.1 95.9 97.4
Flue gas
temperature
°C < 60 < 70 < 60 < 70 < 65 < 75
100%
Nominal
output (Pn)
at 50/30 °C
% 101.5 102.1 101.4 102.0 101.1 101.6
Flue gas
temperature
°C <40 <45 <40 <45 <45 <50
Flue gas
temperature
°C <40 <45 <40 <45 <45 <50
Hi annual effi
ciency
at 75/60 °C % 101.1 100.9 100.7
at 40/30 °C % 105.3 105.1 104.6
Pressure available at the flue
gas nozzle (Pn)
mbar
(1)
0.14 0.22 0.33
Pa 14 22 33
3 Technical specifications
10 AFC 300026440 - v07 - 02082019
Boiler Unit AFC 18 AFC 24 AFC 30
Minimum
output
Full output Minimum
output
Full output Minimum
output
Full output
O
2
content
(Minimum output - start-up -
maximum output)
% 7 - 4.5 - 4 7 - 5 - 4 4 - 3 - 3
CO
2
content
(2)
(Minimum output - start-up -
maximum output)
% 10.2 - 12.1 - 12.5 10.2 - 11.7- 12.5 12.5 - 13.2 - 13.2
Nominal water
flow rate at Pn
(50/30°C)
ΔT = 20K
m
3
/h
0.773 1.032 1.291
Stand-by losses ΔT = 30 K W 109 109 128
Percentage of
losses through
the casing com
pared with the
stand-by losses
ΔT = 30 K % 61 61 63
Hydraulic circuit
pressure drop
(Pn)
ΔT = 10K
mbar
(3)
66.0 117.0 183.0
Hydraulic circuit
pressure drop
(Pn)
ΔT = 15K
mbar
(3)
29.0 52.0 81.0
Hydraulic circuit
pressure drop
(Pn)
ΔT = 20K
mbar
(3)
16.0 29.0 46.0
Electrical output of the boiler
only with no accessories
W 128 272 128 272 128 272
Water content litres 47 47 58
Flue gas mass flow rate (Nom
inal output Pn)
kg per sec 0.0075 0.01 0.0125
kg/h 27 36 45
Net weight (without packaging) kg 117 117 135
(1) These values apply to 80 mm flexible flue gas discharge systems. For Germany: These pipes are rigid. The length of rigid flue gas dis
charge systems is limited to 18 metres for technical reasons relating to start-up.
(2) Content values given as a guideline for oil with max. CO
2
equal to 15.4%
(3) 1 mbar = 10 mm CE = 100 Pa
3 Technical specifications
300026440 - v07 - 02082019 AFC 11
4 Description of the product
4.1 General description
Floor-standing condensing oil boiler
Heating only (with possibility to produce domestic hot water by
combining them with a domestic hot water tank).
High-efficiency heating.
Low pollutant emissions.
Modulating oil burner preassembled and preset.
Stainless steel heating body.
DIEMATIC iSystem top of the range electronic control panel.
Flue gas discharge by a forced flue or chimney type connection.
Flue gas discharge via a chimney type connection.
4.2
Circulating pump
Important
The benchmark for the most efficient circulating pumps is EEI ≤
0.20.
4.3 Main components
1 Oil filter, deaerator and stop valve
2 On/Off switch
3 Control module
4 18-litre expansion vessel
Belgium: optional expansion vessel
5 Condensates evacuation pipe
Fig.2
3
2
5
4
1
C003260-B
4 Description of the product
12 AFC 300026440 - v07 - 02082019
4.4 Control panel description
4.4.1 Description of the keys
Fig.3
A000867-B
bar
STD
0 2 4 6 8 10 12 14 16 18 22 2420
b
AUTO
g
A
B
C
D
E
F
A Temperature setting key (heating, DHW, swimming
pool)
B Operating mode selection key
C DHW override key
D Key to access the parameters reserved for the
installer
E Keys on which the function varies as and when
selections are made
F Rotary setting button:
Turn the rotary button to scroll through the menus
or modify a value
Press the rotary button to access the selected
menu or confirm a value modification
4.4.2 Description of the display
Functions of the keys
Access to the various menus
Menu scrolling
Parameter scrolling
Help available
Display the curve of the selected parameter
Resetting the timer programs to zero
Selection of the time range in comfort mode
Selection of the time range in reduced mode
Back to the previous level
Back to the previous level without saving the modifications made
Manual reset
Flame output level
Entire symbol flashes: Burner start-up but no flame
Part of the symbol flashes: output increase
Fig.4
MW-C002696-4
bar
1
2
r
c
STD
(
'
t
p
b
w
r
r
j
M
AUTO
x
c
g
m
Fig.5
MW-C002701-3
bar
1
2
r
1
2
c
v
12 14 16 18 22 2420
p
b
w
AUTO
x
c
r
j
M
g
m
1
1
2
2
r
1
2
c
c
v
v
v
v
v
12
12
4 Description of the product
300026440 - v07 - 02082019 AFC 13
Fixed symbol: requested output attained
Part of the symbol flashes: output decrease
Solar
The indicator is present if a solar domestic hot water tank is connected.
Solar booster pump running
Top part of the tank reheated to the solar domestic hot water set
point
Top and middle part of the tank reheated to the solar domestic hot
water set point
Entire tank reheated to the solar domestic hot water set point
Tank not loaded and solar control system present
Summer / Winter Modes
Summer mode on:
heating off,
domestic hot water continues to be produced.
Winter mode on:
heating running,
domestic hot water continues to be produced.
Operating modes
Operation in automatic mode according to the timer programme
COMFORT mode: the symbol is displayed when a DAY override
(comfort) is activated
Steady symbol: permanent override
Flashing symbol: temporary override
REDUCED mode: the symbol is displayed when a NIGHT override
(reduced) is activated
Steady symbol: permanent override
Flashing symbol: temporary override
HOLIDAYS mode: the symbol is displayed when a HOLIDAYS
override (frost protection) is activated
Steady symbol: HOLIDAYS mode active
Flashing symbol: HOLIDAYS mode programmed.
MANUEL mode: the boiler operates with the set point displayed.
All of the pumps operate. The three-way valves are not controlled.
Installation pressure
Pressure indicator: hydraulic pressure sensor connected
Steady symbol: hydraulic pressure sufficient
Flashing symbol: hydraulic pressure insufficient
Hydraulic pressure level
0.9 to 1.1 bar
1.2 to 1.5 bar
1.6 to 1.9 bar
Fig.6
MW-L000197-5
bar
1
2
r
1
2
c
v
0 2 12 14 16 18 22 2420
p
b
w
AUTO
x
c
r
j
M
g
m
1
1
2
r
1
2
c
v
0
2
12
12
14
14
14
14
14
16
b
AUTO
x
x
c
c
c
c
c
r
r
r
r
r
r
r
r
r
r
r
j
j
g
g
g
g
g
g
g
g
m
m
m
m
m
m
m
m
m
Fig.7
MW-C002697-5
bar
r
1
2
c
1
2
v
0 2 4 6 8 10 12 14 16 18 22 2420
p
b
w
AUTO
x
c
r
j
M
g
m
r
1
2
b
AUTO
AUTO
AUTO
AUTO
AUTO
AUTO
x
x
x
x
x
x
c
c
c
r
r
r
r
r
r
r
r
r
r
r
j
j
j
j
j
j
j
M
M
M
M
g
g
g
g
g
g
g
g
m
m
m
m
m
m
m
m
m
p
b
Fig.8
MW-C002698-4
bar
1
1
2
2
r
c
v
0 2 4 6 8 10 12 14 16
p
b
w
r
j
AUTO
x
c
g
m
6
8
8
8
8
10
10
12
12
14
14
16
16
r
r
r
r
j
AUTO
x
c
g
m
AUTO
x
c
g
m
Fig.9
MW-C002708-4
bar
r
1
2
c
1
2
v
0 2 4 6 8 10 12 14 16 18 22 2420
p
b
w
AUTO
x
c
r
j
M
g
m
r
r
r
r
1
2
2
c
c
c
1
2
v
p
p
b
b
b
w
AUTO
AUTO
AUTO
AUTO
AUTO
x
x
x
x
x
x
x
c
c
c
c
c
c
c
g
g
g
g
g
g
g
g
g
m
m
m
m
m
m
m
bar
4 Description of the product
14 AFC 300026440 - v07 - 02082019
2.0 to 2.3 bar
> 2.4 bar
Domestic hot water override
A vertical bar is displayed at bottom left when a domestic hot water
override is activated.
Steady symbol: permanent override
Flashing symbol: temporary override
Information about the circuits
Domestic hot water production running
Three-way valve connected:
: 3-way valve open
: 3-way valve closed
Pump running
Name of the circuit for which the parameters are displayed
Fig.10
MW-C002707-4
bar
1
1
2
2
r
c
STD
'
t
v
p
b
w
r
r
j
M
AUTO
x
c
g
m
bar
1
1
2
2
r
r
c
STD
STD
STD
STD
STD
STD
STD
STD
'
'
'
'
'
'
'
'
'
'
'
'
'
'
'
'
'
'
v
p
p
p
p
p
p
b
b
b
b
b
b
b
w
w
r
r
r
r
r
r
r
r
r
AUTO
AUTO
AUTO
AUTO
AUTO
AUTO
AUTO
AUTO
AUT
AUT
x
x
c
g
g
g
g
m
m
m
m
m
m
m
Fig.11
MW-C002699-3
bar
1
1
2
2
r
c
v
12 14 16 18 22 2420
p
b
w
AUTO
x
c
r
j
M
g
m
bar
bar
bar
1
1
1
1
1
2
2
2
2
2
r
r
c
c
c
c
c
c
c
v
v
v
12
12
14
14
16
16
16
16
16
18
p
b
w
AUTO
x
c
r
r
r
r
j
M
g
m
m
r
j
M
4 Description of the product
300026440 - v07 - 02082019 AFC 15
5 Operation
5.1 Browsing in the menus
1. To select the desired menu, turn the rotary button.
2. To access the menu, press the rotary button.
To go back to the previous display, press the key.
3. To select the desired parameter, turn the rotary button.
4. To modify the parameter, press the rotary button.
To go back to the previous display, press the key.
5. To modify the parameter, turn the rotary button.
6. To confirm, press the rotary button.
Important
To cancel, press the key.
7. To go back to the main display, press the key twice.
Important
It is possible to use the and keys instead of the rotary
button.
Fig.12
bar
1
1
2
2
r
c
STD
(
'
t
v
0 2 4 6 8 10 12 14 16 18 22 2420
p
b
AUTO
x
c
r
j
L
g
m
#MEASURES
#CHOICE TIME PROG.
#TIME PROGRAM
#SETTING
#TIME .DAY
a
C002220-B-04
Fig.13
bar
1
1
2
2
r
c
STD
(
'
t
v
0 2 4 6 8 10 12 14 16 18 22 2420
p
b
AUTO
x
c
r
j
L
g
m
CURRENT PROG.B
CURRENT PROG.C
P2
P3
a
C002221-C-04
Fig.14
bar
1
1
2
2
r
c
STD
(
'
t
v
0 2 4 6 8 10 12 14 16 18 22 2420
p
b
AUTO
x
c
r
j
L
g
m
CURRENT PROG.C
"Choice of the timeprogram
applied C"
P4
a
C002222-C-04
Fig.15
bar
1
1
2
2
r
c
STD
(
'
t
v
0 2 4 6 8 10 12 14 16 18 22 2420
p
b
AUTO
x
c
r
j
M
g
m
LUNDI 11:45
C002224-D-04
2x
5 Operation
16 AFC 300026440 - v07 - 02082019
5.2 Start-up
1. Turn on the boiler using the on/off switch.
2. The first time the boiler is powered up, the LANGUAGE parameter is
displayed. Select the desired language by turning the rotary button.
3. Press the rotary button to confirm.
The boiler begins an automatic venting cycle that lasts around 3
minutes and is repeated each time the power is cut. If there is a
problem, the error is displayed on the screen.
4. Check the hydraulic pressure in the installation shown on the control
panel display.
Important
If the hydraulic pressure is less than 0.8 bar, add more water
(recommended hydraulic pressure: between 1.5 and 2.0
bar).
5.3
Shut-down
If the central heating system is not used for a long period of time, we
recommend switching off the boiler.
1. Switch the On/Off switch to Off.
2. Switch off the power supply to the boiler.
3. Close the oil inlet.
4. Ensure that the boiler and system are protected against frost damage.
5. Have the boiler and the chimney carefully swept.
6. Close the door of the boiler to prevent air circulating inside it.
7. Remove the pipe connecting the boiler to the chimney and plug the
flue gas nozzle.
8. Empty the tank and the domestic hot water piping (for modules with
domestic hot water production).
5.4 Frost protection
When the heating water temperature in the boiler is too low, the integrated
boiler protection system starts up. This protection functions as follows:
If the water temperature is lower than 7 °C, the heating pump starts up.
If the water temperature is lower than 4 °C, the boiler starts up.
If the water temperature is higher than 10 °C, the boiler shuts down and
the circulation pump continues to run for a short time (pump post-
circulation active).
If the water temperature in the buffer tank is less than 4 °C, it is
reheated to its set point.
Caution
Frost protection does not function if the appliance is switched
off.
The boiler protection only protects the boiler, not the system. To
protect the installation, set the appliance to HOLIDAYS mode.
The HOLIDAYS mode protects:
The installation if the outdoor temperature is lower than 3 °C (factory
setting).
Fig.16
8 22 2420
l
0
MW-C003159-A
Fig.17
Français - Deutsch - English -
Italiano - Espanol - Nederlands
- Pycck - Polski - Türk -
bar
1
1
2
2
r
c
STD
(
'
t
v
0 2 4 6 8 10 12 14 16 18 22 2420
p
b
x
c
r
g
m
a
LANGUE FRANCAIS
MW-C002286-C
5 Operation
300026440 - v07 - 02082019 AFC 17
The room temperature if a remote control is connected and the room
temperature is lower than 6 °C (factory setting).
The domestic hot water tank if the domestic hot water tank temperature
is lower than 4 °C (the water is reheated to 10 °C).
See
To configure the HOLIDAYS mode: See the chapter "Selecting the
operating mode".
5 Operation
18 AFC 300026440 - v07 - 02082019
6 Settings
6.1 Setting the parameters
6.1.1 Setting the set point temperatures
To set the various heating, domestic hot water and swimming pool
temperatures, proceed as follows:
1. Press the key.
2. To select the desired parameter, turn the rotary button.
3. To modify the parameter, press the rotary button.
To go back to the previous display, press the key.
4. To modify the parameter, turn the rotary button.
5. To confirm, press the rotary button.
Important
To cancel, press the key.
menu
Tab.6
Parameter Adjustment range Description Factory setting
DAY TEMP.A 5 to 30 °C Desired room temperature in comfort mode on circuit A 20 °C
NIGHT TEMP.A 5 to 30 °C Desired room temperature in reduced mode on circuit A 16 °C
DAY TEMP.B
(1)
5 to 30 °C Desired room temperature in comfort mode on circuit B 20 °C
NIGHT TEMP.B
(1)
5 to 30 °C Desired room temperature in reduced mode on circuit B 16 °C
DAY TEMP.C
(1)
5 to 30 °C Desired room temperature in comfort mode on circuit C 20 °C
NIGHT TEMP.C
(1)
5 to 30 °C Desired room temperature in reduced mode on circuit C 16 °C
DHW TEMP.
(1)
10 to 80 °C Desired domestic hot water temperature in the domestic hot
water circuit.
55 °C
TEMP.TANK AUX
(1)
10 to 90 °C Desired domestic hot water temperature in the auxiliary cir
cuit
55 °C
TEMP.DHW A
(1)
10 to 90 °C Desired domestic hot water temperature in the tank connec
ted to circuit A
55 °C
TEMP.SOL.TANK
(1)
20 to 80 °C Maximum load temperature of the tank's solar zone 65 °C
SWIMMING P.T.B
(1)
HG, 0.5 to 39 °C Desired temperature for swimming pool B 20 °C
SWIMMING P.T.C
(1)
HG, 0.5 to 39 °C Desired temperature for swimming pool C 20 °C
WATER T.NIGHT 10 to 80 °C Desired domestic hot water temperature in the domestic hot
water circuit.
10 °C
WATER T.NIGHTAUX 10 to 90 °C Desired domestic hot water temperature in the auxiliary cir
cuit
10 °C
WATER T.NIGHT.A 10 to 90 °C Desired domestic hot water temperature in circuit A 10 °C
(1) The parameter is only displayed for the corresponding options, circuits or sensors actually connected.
6.1.2 Selecting the operating mode
To select an operating mode, proceed as follows:
Fig.18
MODE
MW-C002266-A
6 Settings
300026440 - v07 - 02082019 AFC 19
1. Press the MODE key.
2. To select the desired parameter, turn the rotary button.
3. To modify the parameter, press the rotary button.
To go back to the previous display, press the key.
4. To modify the parameter, turn the rotary button.
5. To confirm, press the rotary button.
Important
To cancel, press the key.
MODE menu
Tab.7
Parameter Adjustment range Description Factory setting
AUTOMATIQUE The comfort mode ranges are determined by the timer pro
gramme.
DAY 7/7, xx:xx Comfort mode is forced until the time indicated or all the time
(7/7).
Current time + 1
hour
NIGHT 7/7, xx:xx Reduced mode is forced until the time indicated or all the time
(7/7).
Current time + 1
hour
HOLIDAYS 7/7, 1 to 364 The frost protection mode is active on all boiler circuits.
Number of days' holiday: xx
(1)
Stop heating: xx:xx
(1)
Start heating again: xx:xx
(1)
Current date + 1
day
SUMMER The heating is off.
Domestic hot water continues to be produced.
MANUEL The generator operates according to the set point setting. All
of the pumps operate. Possibility of setting the set point by
simply turning the rotary button.
FORCE AUTO
(2)
ON/ OFF An operating mode override is activated on the remote control
(optional).
To force all circuits to run on AUTOMATIQUE, select ON.
(1) The start and end days and the number of days are calculated in relation to each other.
(2) The parameter is only displayed if a room sensor is connected.
6.1.3 Forcing domestic hot water production
To force domestic hot water production, proceed as follows:
1. Press the key.
2. To select the desired parameter, turn the rotary button.
3. To modify the parameter, press the rotary button.
To go back to the previous display, press the key.
4. To modify the parameter, turn the rotary button.
5. To confirm, press the rotary button.
Important
To cancel, press the key.
Fig.19
MODE
MW-C002267-1
Fig.20
MODE
MW-C002268-A
6 Settings
20 AFC 300026440 - v07 - 02082019
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