DeDietrich NeOvo Condens EFU C 19, NeOvo CondensEFU C 32, NeOvo CondensEFU C 24, NeOvo Condens EFU C 40, NeOvo Condens EFU C 50 User Manual

NeOvo

Jordan LebanonSyria

en

User Manual

Oil-fired Condensing Boiler

NeOvo Condens

EFU C 19
EFU C 24
EFU C 32

Dear Customer,

Thank you very much for buying this appliance.

Please read through the manual carefully before using the product, and keep it in a safe place for later reference. In order to
ensure continued safe and efficient operation we recommend that the product is serviced regularly. Our service and customer
service organisation can assist with this.

We hope you enjoy years of problem-free operation with the product.

Contents

1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3.1 Manufacturer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3.2 Installer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3.3 User's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

2 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1.2 Symbols used on the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.1 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.2 Oil categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

4.2 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2.1 Boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3 Description of the control panel B-Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3.1 Description of the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.3.2 Description of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

4.4 Description of the control panel IniControl 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.4.1 Description of the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.4.2 Description of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

5 Utilisation with the control panel B-Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1 Use of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.1.1 Browsing in the menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.3 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.3.1 Switching off the heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.3.2 Stopping domestic hot water production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.3.3 Shutting down the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.4 Frost Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

6 Utilisation with the control panel IniControl 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.1 Use of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.1.1 Browsing in the menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.2 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.2.1 Selecting a PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.3 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.3.1 Switching off the heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.3.2 Stopping domestic hot water production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.3.3 Shutting down the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.4 Frost Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

7 Control panel settings B-Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

7.1 List of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

7.1.1 Information menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

7.2 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

7.2.1 Setting the heating water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

7.2.2 Modifying the domestic hot water temperature setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8 Control panel settings IniControl 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

8.1 List of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

8.1.1 User menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

8.1.2 COUNTERS/TIME PROG/CLOCK menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

8.2 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Contents

7628759 - v03 - 12012017 EFU C 3

8.2.1 Modifying the User parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8.2.2 Setting the heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

8.2.3 Setting the domestic hot water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

8.2.4 Setting the timer programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

9 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9.2 Maintenance instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9.2.1 Check the hydraulic pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9.2.2 Topping up the installation with water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

9.3 Venting the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

10.1 Error messages B-Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

10.1.1 Error code display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.1.2 Fault code display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.2 Error messages IniControl 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.2.1 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

10.2.2 Accessing the error log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

11 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

11.1 Disposal and Recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

11.2 Energy savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

12 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

12.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

12.2 Terms of warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

13 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

13.1 Product fiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

13.2 Product fiche - Temperature Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

13.3 Product data sheet - Temperature controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

13.4 Product fiche . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Contents

4 EFU C 7628759 - v03 - 12012017

1 Safety

1.1 General safety instructions

Danger
This appliance is not intended for use by persons
(including children) with reduced physical, senso
ry or mental capabilities, or lack of experience
and knowledge, unless they have been given su
pervision or instruction concerning use of the ap
pliance by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.

Danger of electric shock
Before any work, switch off the mains supply to
the boiler.

Caution
Only use original spare parts.

Important
Only qualified professionals are permitted to in
stall the boiler, in accordance with prevailing local
and national regulations.

Important
Allow the space required to correctly install the
boiler. Refer to the Overall space needed for the
boiler section in the installation and service man
ual.

Warning
Do not touch the flue gas pipes. Depending on
the boiler settings, the temperature of the flue gas
pipes may exceed 60°C.

Warning
Do not touch the radiators for long periods. De
pending on the boiler settings, the temperature of
the radiators may exceed 60°C.

Warning
Take precautions with the domestic hot water.
Depending on the boiler settings, the domestic
hot water temperature may exceed 65°C.

Warning
Only qualified professionals are authorised to
work on the boiler and the heating system.

1 Safety

7628759 - v03 - 12012017 EFU C 5

Important
The installation must comply on all points with
prevailing regulations and directives, which gov
ern work and interventions in individual homes,
blocks of flats and other buildings.

Hydraulic safety

Important
Respect the minimum and maximum water inlet
pressure to ensure correct operation of the boiler:
refer to the chapter Technical Specifications.

Electrical safety

Caution
A disconnection method must be allowed in the
fixed pipes in accordance with the rules on instal
lation 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 per
sons with similar qualifications in order to obviate
any danger.

Important
The installation must comply on all points with
prevailing regulations and directives, which gov
ern work and interventions in individual homes,
blocks of flats and other buildings.

Caution

The boiler must always be connected to the pro
tective earthing.
Earthing must comply with the prevailing instal
lation standards.
Earth the appliance before making any electrical
connections.

For the type and calibre of the protective equip
ment, refer to the chapter Electrical Connections
in the Installation and Service Manual.

Danger of electric shock
Only qualified professionals are permitted access
to the inside of the appliance, in accordance with
the prevailing electrical safety standard.

1 Safety

6 EFU C 7628759 - v03 - 12012017

Danger
If you smell flue gases:

1. Switch off the appliance.

2. Open the windows.

3. Evacuate the premises.

4. Contact a qualified professional.

Caution
Do not neglect to service the boiler. Contact a
qualified professional or take out a maintenance
contract for the obligatory annual servicing of the
boiler.
Failure to service the appliance voids the warran
ty.

Important
This manual can also be found on our internet
site.

1.2

Recommendations

Caution
The system must satisfy each point in the rules
(DTU, EN and others, etc.) that govern works and
interventions in individual homes, blocks of flats
or other buildings.

Note
Keep the boiler accessible at all times.

Caution
Install the boiler in a frost-free environment.

Note
Regularly check the presence of water and pres
sure in the heating system.

Important
Never remove or cover labels and data plates af
fixed to the appliances. Labels and data plates
must be legible throughout the entire lifetime of
the appliance.
Immediately replace damaged or illegible instruc
tions and warning stickers.

Important
Remove the casing only to perform maintenance
and repair work. Put the casing back in place af
ter maintenance and repair work.

1 Safety

7628759 - v03 - 12012017 EFU C 7

Important
Insulate the pipes to reduce heat losses to a mini
mum.

Caution
Have the boiler and heating system drained by a
qualified professional if the home is left empty for
a long period of time and there is a chance of
frost.

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
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 the
appliance.
Failure to abide by the instructions on using the appli
ance.
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 ob
serve the following instructions:

Read and follow the instructions given in the manuals
provided with the appliance.
Install the appliance in compliance with prevailing leg
islation and standards.
Carry out initial commissioning and any checks neces
sary.
Explain the installation to the user.
If maintenance is necessary, warn the user of the obli
gation to check the appliance and keep it in good
working order.
Give all the instruction manuals to the user.

1 Safety

8 EFU C 7628759 - v03 - 12012017

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 car
ried out by a qualified installer.
Keep the instruction manuals in good condition close
to the appliance.

1 Safety

7628759 - v03 - 12012017 EFU C 9

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 in
structions. 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 in
jury.

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 re

cycling 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.

Fig.1 Symbols used on the appliance

1 2

MW-1000123-2

1

2

3

4

5

6

2 About this manual

10 EFU C 7628759 - v03 - 12012017

3 Technical specifications

3.1 Homologations

3.1.1 Certifications

The boiler complies with current standards.

CE identification number: 0085CQ0002

3.1.2 Oil categories

Tab.1

Type of oil that can be used Maximum viscosity

GNR
Non-road diesel with a maximum FAME content of 7 %

(1)

Note
To be used exclusively for a boiler fitted with a burner with a heater.

6 mm2/s at 20 °C

Standard fuel oil

6 mm2/s at 20 °C

Low-sulphur oil

6 mm2/s at 20 °C

Bio-oil B10
Mixture of low-sulphur oil (<50 mg/kg) plus 5.9 to 10.9% (in volume) of FAME

(1)

6 mm2/s at 20 °C

Bio-oil B5 (or Bio 5)
Mixture of low-sulphur oil (<50 mg/kg) plus 3 to 5.9% (in volume) of FAME

(1)

6 mm2/s at 20 °C

(1) Liquid petroleum products — Fatty Acid Methyl Esters used as heating fuel

3.2

Technical data

Tab.2 Technical parameters for boiler space heaters

Product name EFU C 19 EFU C 24 EFU C 32

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 No No No

Rated heat output

Prated

kW 18 23 31

Useful heat output at rated heat output and
high temperature regime

(2)

P

4

kW 18.3 23.1 30.7

Useful heat output at 30% of rated heat output
and low temperature regime

(1)

P

1

kW 5.8 7.3 9.6

Seasonal space heating energy efficiency

ƞ

s

% 88 89 88

Useful efficiency at rated heat output and high
temperature regime

(2)

ƞ

4

% 90.4 90.3 89.8

Useful efficiency at 30% of rated heat output
and low temperature regime

(1)

ƞ

1

% 95.2 94.6 93.7

Auxiliary electricity consumption

Full load

elmax

kW 0.172 0.143 0.143

3 Technical specifications

7628759 - v03 - 12012017 EFU C 11

Product name EFU C 19 EFU C 24 EFU C 32

Part load

elmin

kW 0.096 0.069 0.077

Stand-by

P

SB

kW 0.004 0.004 0.004

Other specifications

Standby heat loss

P

stby

kW 0.084 0.084 0.100

Ignition burner power consumption

P

ign

kW - - -

Annual energy consumption

Q

HE

GJ 59 74 101

Sound power level, indoors

L

WA

dB 63 63 63

Emissions of nitrogen oxides NO

X

mg/kWh 116 116 116

(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 Technical specifications

12 EFU C 7628759 - v03 - 12012017

4 Description of the product

4.1 General description

Floor-standing condensing oil boilers from the EFU C range have the fol
lowing specifications:

Heating only with possibility to produce domestic hot water by combining
them with a domestic hot water tank
High-efficiency heating
Low polluting emissions
Heating body in cast iron
Condenser with ceramic pipes and stainless steel walls
Pre-assembled and pre-set oil burner
Electronic control panel
Flue gas discharge via a chimney type connection
Flue gas evacuation via a forced flue connection with combustive air in
let kit

4.2

Main components

4.2.1

Boiler

1

Control panel

2

On/Off switch
3 Access to the burner manual reset button
4

Data plate

4.3 Description of the control panel B-Control

4.3.1

Description of the keys

Heating temperature setting button

Level access key: Information, Installer or Chimney Sweep

Manual reset key

Domestic hot water temperature setting button

Fig.2

MW-5000451-1

2

1

3

4

Fig.3

MW-5000031-3

4 Description of the product

7628759 - v03 - 12012017 EFU C 13

4.3.2 Description of the display

Hour run meter

Malfunctions

Maintenance

Reset necessary

Burner status

Heating mode

Outside temperature sensor

Domestic hot water mode

4.4 Description of the control panel IniControl 2

4.4.1 Description of the keys

1

h

: back to the previous level without saving the modifications

made

: manual reset

2

: accessing the heating parameters

: lowering the value

3

: accessing the domestic hot water parameters

: raising the value

4

: MODE display

: accessing the menu selected or confirming the value modifi

cation

4.4.2 Description of the display

Burner Operation

Burner ON

Operating modes

Steady symbol: heating function enabled

Flashing symbol: heating production running

Steady symbol: domestic hot water function enabled

Flashing symbol: domestic hot water production running

Heating function disabled

Domestic hot water function disabled

Fig.4

MW-3000235-3

Fig.5

MW-1000043-5

1 2 3 4

Fig.6

MW-1000085-4

Fig.7

MW-1000083-5

4 Description of the product

14 EFU C 7628759 - v03 - 12012017

Menu display

Information menu: displays the measured values and the statuses

of the appliance

User menu: provides access to the User level setting parameters

Installer menu: provides access to the Installer level setting param

eters

Manual Forcing menu: the appliance runs at the set point dis

played, the pumps operate and the three-way valves are not con

trolled.

Malfunction menu: the appliance has malfunctioned. This informa

tion is signalled by an error code and a flashing display.

Sub-Menu COUNTERS
TIME PROG sub-menu: Timer programming dedicated to heat
ing and domestic hot water production

Sub-Menu CLOCK
PCB selection menu: access to information on the additional PCBs
connected

Display of PCB names

The name of the PCB for which the parameters are displayed is
displayed in 3 characters.

Central unit PCB CU-OH01: direct circuit and domestic hot water

Additional PCB SMS04: 2nd circuit

Additional PCB SMS04: 3rd circuit

COUNTERS / TIME PROG / Sub-Menus CLOCK

COUNTERS sub-menu (CNT)

TIME PROG sub-menu: Timer programming dedicated to heat

ing and domestic hot water production (CIRC A, CIRC B, ECS)

Timer program for Monday
Timer program for Tuesday
Timer program for Wednesday
Timer program for Thursday
Timer program for Friday
Timer program for Saturday
Timer program for Sunday

CLOCK sub-menu (CLK)

Fig.8

Fig.9

MW-1000670-1

Fig.10

MW-1000683-1

...CUO / H01...

Fig.11

MW-1000684-1

...SMS / 04- / B...

Fig.12

MW-1000685-1

...SMS / 04- / C...

Fig.13

MW-1000575-2

4 Description of the product

7628759 - v03 - 12012017 EFU C 15

Temperature sensors

Room temperature sensor connected:

fixed symbol for WINTER mode,

flashing symbol for SUMMER mode.
Outside temperature sensor connected:

fixed symbol for WINTER mode,

flashing symbol for SUMMER mode.

Other Information

Chimney Sweep Menu: forced operation in full load mode
Three-way valve connected
Three-way valve closed
Three-way valve open
Pump running

Fig.14

MW-5000014-4

Fig.15

MW-5000038-4

4 Description of the product

16 EFU C 7628759 - v03 - 12012017

5 Utilisation with the control panel B-Control

5.1 Use of the control panel

5.1.1 Browsing in the menus

Press any key to turn on the backlight for the control panel screen.

Important
If no key is pressed within 3 minutes, the backlight will go out.

The key is used to access the various menus:

Tab.3 Menus available

Information menu

Chimney Sweep menu

Press the key to access the Information menu.

Press the key for 2 seconds to access the Chimney Sweep menu.

Keep pressing the key to scroll through the information.

Note
Thirty minutes after the key is pressed for the last time, the dis

play goes back to the main display.

5.2

Start-up

If the boiler was powered off:

1. Check that the heating system and the boiler are adequately primed
with water. Recommended pressure: 0.15 MPa (1.5 bar).

2. Check that the storage tank is filled with fuel.

3. Open the oil inlet valve.

4. Switch on the boiler.

A venting cycle is run automatically.

The display shows the operating status of the boiler, the heating flow tem
perature and any error codes.

5.3

Shutdown

5.3.1 Switching off the heating

1. Turn the setting button all the way to the left until is dis
played.

Note
The frost protection function continues to run

Fig.16

MW-1000668-1

Fig.17

MW-1000667-1

2’’

Fig.18

MW-1000668-1

Fig.19

MW-3000241-3

5 Utilisation with the control panel B-Control

7628759 - v03 - 12012017 EFU C 17

5.3.2 Stopping domestic hot water production

1. Turn the setting button all the way to the left until is dis
played.

Note
Frost protection continues to run on the domestic hot water tank.
The venting cycle is not tripped when domestic hot water produc
tion is shut down.

5.3.3 Shutting down the installation

It is recommended that the boiler is kept powered on to ensure frost pro
tection.

5.4

Frost Protection

Caution
The frost protection function does not work if the boiler is powered
off.

Caution
The integrated protection system only protects the boiler, not the
heating system.

Caution
Have the boiler and heating system drained by a qualified profes
sional if the home is left empty for a long period of time and there
is a chance of frost.

Important
To prevent the radiators and the installation from freezing in pla
ces where that risk exists (e.g. in a garage or an equipment room),
we recommend the connection of an outside temperature sensor
to the boiler.

If the temperature of the water in the boiler falls too much, the integrated
protection device switches itself on. This device functions as follows:

If the water temperature is lower than 7°C, the circulation 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.

Fig.20

MW-3000242-3

5 Utilisation with the control panel B-Control

18 EFU C 7628759 - v03 - 12012017

6 Utilisation with the control panel IniControl 2

6.1 Use of the control panel

6.1.1 Browsing in the menus

Press any key to turn on the backlight for the control panel screen.

Important
If no key is pressed within 3 minutes, the backlight will go out.

Press the 2 right-hand keys together to access the different menus:
Tab.4 Menus available

Information menu

User menu

Installer menu

Manual Forcing menu

Failure menu

Sub-menu COUNTERS
Sub-menu TIME PROG
Sub-menu CLOCK

PCB selection menu

Note
The icon is displayed only if an optional PCB has
been installed.

Note
The different menus are only accessible when the icons flash.

Press the key to:

access the next menu,
access the next sub-menu,
access the next parameter,
increase the value.

Press the key to:

access the previous menu,
access the previous sub-menu,
access the previous parameter
decrease the value.

Press the confirmation key to confirm:

a menu,
a sub-menu,
a parameter,
a value.

When the temperature is displayed, briefly pressing the back key h will
return to the time display.

6.2

Start-up

If the boiler was powered off:

1. Check that the heating system and the boiler are adequately primed
with water. Recommended pressure: 0.15 MPa (1.5 bar).

2. Check that the storage tank is filled with fuel.

Fig.21

MW-2000369-1

Fig.22

MW-1000576-1

Fig.23

MW-2000370-1

Fig.24

MW-2000371-1

6 Utilisation with the control panel IniControl 2

7628759 - v03 - 12012017 EFU C 19

3. Open the oil inlet valve.

4. Switch on the boiler.

A venting cycle is run automatically.

The display shows the operating status of the boiler, the heating flow tem
perature and any error codes.

6.2.1 Selecting a PCB

1. Access the menus by pressing the two keys on the right simultane
ously.

2. Access the PCB selection menu (only when several PCBs are
present).

Important
The PCB selection menu is available only when the icon flash

es.

3. Scroll through the names of the connected additional PCBs by
pressing the or keys.

The names of the installed PCBs will be displayed in sequence.

4. Confirm the required PCB by pressing the key.

Note
The flow temperature for the selected PCB is displayed by default,
as well as the status of the pump(s) and the status of the valve
connected to the selected PCB.

5. Go back to the main display by pressing the h key.

For more information, see
User menu, page 25
COUNTERS/TIME PROG/CLOCK menus, page 28
Modifying the User parameters, page 29

6.3 Shutdown

6.3.1 Switching off the heating

Note
Heating mode can be managed via the TIME PROG sub-menu
dedicated to timer programming.

1. Go to stop mode by pressing the key.

Fig.25

MW-2000369-1

Fig.26

MW-5000137-2

Fig.27

MW-5000027-4

6 Utilisation with the control panel IniControl 2

20 EFU C 7628759 - v03 - 12012017

2. Select the heating mode by pressing the key.

3. Confirm by pressing the key.

4. Select the heating shut-down pressing the key.

The screen displays: .

The frost protection function continues to run.
The heating has been shut down.

Note
Press the key to restart the appliance: the screen will
display .

5. Confirm by pressing the key.

6. Go back to the main display by pressing the h key.

Note
The display disappears after a few seconds of inactivity.

For more information, see
Setting the timer programming, page 31

6.3.2 Stopping domestic hot water production

Note
Domestic hot water production can be managed via the TIME
PROG sub-menu dedicated to timer programming.

1. Go to stop mode by pressing the key.

2. Select domestic hot water production mode pressing the key.

3. Confirm by pressing the key.

Fig.28

MW-5000133-3

Fig.29

MW-5000134-3

Fig.30

MW-5000135-3

Fig.31

MW-5000136-3

6 Utilisation with the control panel IniControl 2

7628759 - v03 - 12012017 EFU C 21

4. Select domestic hot water production shut-down by pressing the
key.

The screen displays: .

The frost protection function continues to run.
Production of domestic hot water has been shut down.

Note
Press the key to restart the appliance: the screen will
display .

5. Confirm by pressing the key.

6. Go back to the main display by pressing the h key.

Note
The display disappears after a few seconds of inactivity.

For more information, see
Setting the timer programming, page 31

6.3.3 Shutting down the installation

It is recommended that the boiler is kept powered on to ensure frost pro
tection.

6.4 Frost Protection

Caution
The frost protection function does not work if the boiler is powered
off.

Caution
The integrated protection system only protects the boiler, not the
heating system.

Caution
Have the boiler and heating system drained by a qualified profes
sional if the home is left empty for a long period of time and there
is a chance of frost.

Important
To prevent the radiators and the installation from freezing in pla
ces where that risk exists (e.g. in a garage or an equipment room),
we recommend the connection of an outside temperature sensor
to the boiler.

If the temperature of the water in the boiler falls too much, the integrated
protection device switches itself on. This device functions as follows:

If the water temperature is lower than 7°C, the circulation 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.

Fig.32

MW-5000028-4

6 Utilisation with the control panel IniControl 2

22 EFU C 7628759 - v03 - 12012017

7 Control panel settings B-Control

7.1 List of parameters

7.1.1 Information menu

Tab.5 Information list

Information Description Display

°C

Heating water temperature (°C)

The symbol flashes

°C

Domestic hot water temperature (°C)

The symbol flashes
If no domestic hot water sensor connected: dis
play — — —

°C

Outside temperature (°C)

The symbol flashes.

Burner status

Energy meter on the heating water circuit

The symbol flashes.
The displayed value flashes.

Energy meter on the domestic hot water circuit

The symbol flashes.
The displayed value flashes.

Information on the boiler not available

For more information, see
Browsing in the menus, page 17

7.2 Setting the parameters

7.2.1 Setting the heating water temperature

No temperature sensor connected Outside temperature sensor con

nected

Set the heating water temperature
setpoint

Set the required room temperature

1. Set the temperature setpoint or room temperature depending on the

configuration described above by turning the setting button .

Note
If the heating water temperature setpoint is lower than 16°C and if
no outside temperature sensor is connected, the heating cuts out
automatically.

Note
This setting is possible regardless of the display.

2. Go back to the main display by pressing the key for two seconds.

Note
After five seconds without pressing any keys on the control panel,
the display goes back to the main display.

Fig.33

MW-3000243-3

Fig.34

MW-3000244-3

7 Control panel settings B-Control

7628759 - v03 - 12012017 EFU C 23

7.2.2 Modifying the domestic hot water temperature setpoint

Note
This setting is available if a domestic hot water tank sensor is con
nected.

1. Set the domestic hot water temperature setpoint by turning the set
ting button .

2. Go back to the main display by pressing the key for two seconds.

Note
After five seconds without pressing any keys on the control panel,
the display goes back to the main display.

Fig.35

MW-3000246-3

Fig.36

MW-3000245-3

7 Control panel settings B-Control

24 EFU C 7628759 - v03 - 12012017

8 Control panel settings IniControl 2

8.1 List of parameters

8.1.1 User menu

Fig.37

1

2

MW-2000435-1

3

2

1 Sub-menu available
2 Name of the PCB or circuit

3 Setting parameters

Tab.6

List of User sub-menus

Sub-menu Description Name of the PCB or cir

cuit

Main heating circuit

Additional heating circuit B

Additional heating circuit C

Domestic hot water circuit

Central unit PCB CU-OH01

Additional PCB for circuit B

Additional PCB for circuit C

Control panel HMI

Note
CP : Circuits Parameters = Heating circuit parameters

Tab.7

List of parameters in the / / sub-menus of the User menu

Parameter Description

Factory setting Factory setting

Heating water flow temperature set point for the zone heated if no
outside temperature sensor has been connected.

For the PCB: Can be set from 7 to 90°C

75°C 40°C

Post-operation time of the circuit pump
Can be set from 0 to 20 minutes

3 minutes 4 minutes

Room temperature set point in reduced mode
Can be set from 5 to 30°C

16°C 16°C

Room temperature set point in comfort mode
Can be set from 5 to 30°C

20°C 20°C

Do not modify this setting. 6°C 6°C

Do not modify this setting. 21°C 21°C

Do not modify this setting. 22°C 22°C

8 Control panel settings IniControl 2

7628759 - v03 - 12012017 EFU C 25

Parameter Description

Factory setting Factory setting

Do not modify this setting. 20°C

not available 30°C

not available 25°C

Do not modify this setting. not available 25°C

Do not modify this setting. not available 25°C

Do not modify this setting. not available 25°C

Do not modify this setting. not available 25°C

Circuit operating mode:

= timer programming
= manual mode
= frost protection mode

0 0

Do not modify this setting. not available 55°C

Do not modify this setting. not available 10°C

Temperature set point for SWIMMING POOL mode not available 20°C

Do not modify this setting. 0 0

Note
DP : Direct Hot Water Parameters = Domestic hot water tank pa
rameters

Tab.8

List of parameters in the sub-menu of the Installer menu

Parameter Description Factory setting

Do not modify this setting. 0

Domestic hot water temperature set point in comfort mode
Can be set from 40 to 65°C

55°C

Domestic hot water temperature set point in reduced mode
Can be set from 10 to 60°C

10°C

Domestic hot water production mode:

= timer programming
= manual mode
= frost protection mode

0

Post-circulation time for the pump after domestic hot water production:

Can be set from 0 to 60 minutes
set to 99 minutes = continuous running

3 minutes

Note
AP : Appliance Parameters = Appliance parameters

8 Control panel settings IniControl 2

26 EFU C 7628759 - v03 - 12012017

Tab.9

List of parameters in the / / sub-menus of the User menu

Parameter Description Factory setting

Factory setting

Central heating operation:

= off
= on

1 not available

Domestic hot water tank operation:

= off
= on

1 not available

SUMMER / WINTER set point switch:

Can be set from 15 to 30°C
set to 30.5°C = function deactivated

22°C 22°C

SUMMER override:

= off
= on

0 0

Note
AP : Appliance Parameters = Appliance parameters

Tab.10

List of parameters in the sub-menu of the Installer menu

Parameter Description Factory setting

Backlighting

= off after 3 minutes of inactivity on the control panel
= on

1

Setting the LANGUAGE :

= no language

= French
= Dutch
= English
= Germany
= Spanish
= Italian
= Polish
= Portuguese

EN

Setting the CONTRAST :
Can be set from 0 to 3

0

Selecting the UNIT :

= °C
= °F

0

Changing the summer/winter timer :

= off
= on

1

For more information, see
Browsing in the menus, page 19
Selecting a PCB, page 20

8 Control panel settings IniControl 2

7628759 - v03 - 12012017 EFU C 27

8.1.2 COUNTERS/TIME PROG/CLOCK menus

Tab.11

List of sub-menus

Sub-menu Description

COUNTERS

Timer programming for the main heating circuit

Timer programming for the additional heating circuit B

Timer programming for the additional heating circuit C

Timer programming for the domestic hot water circuit

Setting the clock and the date

For more information, see
Browsing in the menus, page 19
Selecting a PCB, page 20

COUNTERS sub-menu

Tab.12

Choices available in the sub-menu: names of associated PCBs (only when several PCBs are present)

Adjustment parameter PCB Parameter

Central unit PCB CU-OH01

Additional PCB for circuit B

Additional PCB for circuit C

Tab.13

List of hour run meters available (X) in the sub-menu

Parameter Description Unit

Number of hours' operation hours X X

Number of hours' burner operation since the last
service

hours X

Number of hours' operation since the last service hours X

Number of burner start-ups since the last service - X

Consumption in heating mode kWh X

Consumption in domestic hot water production
mode

Wh X

Number of hours' pump operation hours X

Number of pump start-ups - X

Number of hours' pump operation hours X

8 Control panel settings IniControl 2

28 EFU C 7628759 - v03 - 12012017

Parameter Description Unit

Number of pump start-ups hours X

Number of reversal valve cycles - X

Number of hours' reversal valve operation hours X

Number of burner start-ups in domestic hot water
production mode

- X

Number of hours of burner operation in domestic
hot water production mode

hours X

Number of burner start-ups - X

Number of hours' burner operation hours X

Number of safety lock-downs (E36) - X

Resetting the maintenance service

: hour run meters , ,

are reset.

- X

Tab.14

List of parameters in the sub-menu of the menu

Parameter Description

Timer programming for heating

Timer programming for cooling (only if cooling is activated)

Tab.15

List of parameters in the sub-menu of the menu

Parameter Unit

HOURS Can be set from 0 to 23 available

MINUTE Can be set from 0 to 59 available

DATE Can be set from 1 to 31 available

MONTH Can be set from 1 to 12 available

YEAR Can be set from 2000 to 2100 available

8.2

Setting the parameters

8.2.1 Modifying the User parameters

Caution
Altering the factory settings may impair operation of the appliance.

1. Access the User menu.

Important
The User menu is available only when the icon flashes.

2. Select the desired sub-menu by pressing the or key.

3. Confirm the selection by pressing the key.

Fig.38

MW-5000008-2

8 Control panel settings IniControl 2

7628759 - v03 - 12012017 EFU C 29

4. Select the required parameter by pressing the or keys to scroll
through the list of adjustable parameters.

5. Confirm the selection by pressing the key.

6. Modify the value of the parameter using the or keys.

7. Confirm the new value of the parameter by pressing the key.

8. Go back to the main display by pressing the h key.

For more information, see
Browsing in the menus, page 19
Selecting a PCB, page 20

8.2.2 Setting the heating

Caution
Altering the factory settings may impair operation of the appliance.

Note
The heating mode can be managed using the TIME PROG menu.

1. Access the heating parameters by pressing the key .

Note
If no outside temperature sensor is connected, this menu can be
used to set the temperature of the heating water.
If an outside temperature sensor is connected, this menu can be
used to set the indoor temperature set point.

2. Select the desired circuit, if there are several PCBs, by pressing the

or key.

3. Confirm the selection by pressing the key.

The status of the heating and the associated heating water tem
perature set point are displayed alternately.

4. Select the mode to be modified by pressing the or key:

ON mode = comfort
ECO mode = reduction

5. Modify the heating water temperature set point for the selected
mode by pressing the or key.

Note

Press the h key to cancel all input.

6. Confirm the new temperature set point by pressing the key.

7. Go back to the main display by pressing the h key.

For more information, see
Setting the timer programming, page 31

8.2.3

Setting the domestic hot water temperature

Note
Domestic hot water production can be managed via the TIME
PROG sub-menu dedicated to timer programming.

1. Access the domestic hot water production parameters by pressing
the key .

2. Modify the domestic hot water set point by pressing the or key.

Note

Press the h key to cancel all input.

3. Confirm the new temperature set point by pressing the key.

Go back to the main display by pressing the h key.

Fig.39

MW-5000040-6

Fig.40

MW-5000144-3

Fig.41

MW-3000249-4

Fig.42

MW-6000254-2

8 Control panel settings IniControl 2

30 EFU C 7628759 - v03 - 12012017

For more information, see
Setting the timer programming, page 31

8.2.4

Setting the timer programming

1. Access the COUNTERS / TIME PROG menus CLOCK

Important
The COUNTERS / TIME PROG / CLOCK menus can only be ac

cessed when the icon flashes.

Important
When using a programmable room thermostat, this menu is not
displayed.

2. Select the desired circuit by pressing the or key.

3. Confirm the selection by pressing the key.

The icons dedicated to the days of the week all flash at the same
time: .

4. Select the desired day number by pressing the or key until the
icon dedicated to the desired day flashes.

Day selected Description

, , , , , ,

every day of the week

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Note
The key is used to move to the right.
The key is used to move to the left.

5. Confirm the selection by pressing the key.

6. Set the start time for the period by pressing the or key.

7. Confirm the selection by pressing the key.

Fig.43

MW-5000044-4

Fig.44

MW-5000139-4

Fig.45

MW-1000594-2

Fig.46

MW-5000142-2

8 Control panel settings IniControl 2

7628759 - v03 - 12012017 EFU C 31

8. Select the status that correspond to the period by pressing
the or keys.

Status to for periods

to

Description

comfort mode

reduced mode

9. Confirm the selection by pressing the key.

10. Repeat steps 8 to 11 to define the comfort periods to and
the associated status to .

Note
No setting: 10 minutes

The setting determines the end.

11.

Go back to the main display by pressing the h key.

Example:

Times

06:00-22:00 06:00 22:00

06:00-08:00
11:30-13:30

06:00 08:00 11:30 13:30

06:00-08:00
11:30-14:00
17:30-22:00

06:00 08:00 11:30 14:00 17:30 22:00

Fig.47

MW-5000143-3

8 Control panel settings IniControl 2

32 EFU C 7628759 - v03 - 12012017

9 Maintenance

9.1 General

We recommend having the boiler inspected and serviced at regular inter
vals.

Caution
Do not neglect to service the boiler. Contact a qualified professio
nal or take out a maintenance contract for the obligatory annual
servicing of the boiler.
Failure to service the appliance voids the warranty.

Caution
Have an inspection carried out and the flues swept at least once a
year or more, depending on the regulations in force in your coun
try.

Caution
Only qualified professionals are authorised to carry out mainte
nance work on the boiler and the heating system.

Caution
After maintenance or repair work, check the entire heating system
to ensure that there are no leaks.

Caution
Only genuine spare parts may be used.

9.2 Maintenance instructions

9.2.1 Check the hydraulic pressure

1. Check the hydraulic pressure in the installation.

Caution
If the hydraulic pressure is lower than 0.08 MPa (0.8 bar), more
water should be added. Top up the water level in the heating in
stallation to reach a hydraulic pressure of between 0.15 and 0.2
MPa (1.5 and 2.0 bar).

2. Carry out a visual check for any water leaks.

9.2.2 Topping up the installation with water

1. Open the valves on all radiators connected to the heating system.

2. Set the room thermostat to as low a temperature as possible.

3. Put the boiler in shut-down/frost protection mode.

4. Open the fill valve.

5. Close the filling valve when the pressure gauge shows a pressure of

0.15 MPa (1.5 bar).

6. Put the boiler in heating mode.

7. When the pump has stopped, vent again and top up the water pres
sure.

Note
Filling and venting the installation twice a year should be sufficient
to obtain an adequate hydraulic pressure. If it is often necessary
to top up the installation with water, contact your installer.

9 Maintenance

7628759 - v03 - 12012017 EFU C 33

9.3 Venting the installation

Any air in the appliance, the pipes or the valves must be removed in order
to prevent annoying noises that may occur during heating or when tapping
water. Proceed as follows:

1. Open the valves of all the radiators connected to the installation.

2. Set the room thermostat to the highest possible temperature.

3. Wait until the radiators are warm.

4. Switch off the boiler.

5. Wait approximately ten minutes, until the radiators feel cold.

6. Vent the radiators. Work from the bottom to the top.

7. Open the venting valve with the bleed key, keeping a cloth pressed
against the vent.

8. Wait until water comes out of the venting valve and then close the
venting valve.

Warning
The central heating water may still be hot.

9. Switch the boiler on.

A three-minute venting cycle is performed automatically.

10. After venting, check that the water pressure in the installation is still
adequate.

Important
If the water pressure is lower than 0.8 bar, the water must be top
ped up. If necessary: top up the central heating installation (rec
ommended water pressure between 1.5 and 2.0 bar).

11. Set the room thermostat or the control.

Fig.48 Venting the installation

AD-3000484-B

87

A

C

B

6

5

4

3

2

1

2

3

4

1

11

9 Maintenance

34 EFU C 7628759 - v03 - 12012017

10 Troubleshooting

10.1 Error messages B-Control

10.1.1 Error code display

If an error is detected, the error code is displayed automatically.

Note
The and icons flash.

10.1.2

Fault code display

If a fault is detected, the fault code is displayed automatically.

10.2

Error messages IniControl 2

10.2.1 Error messages

Resetting the control panel allows the appliance to be restarted.

The message appears when a fault code is detected. After resolving
the problem, pressing the key resets the appliance's functions and

thus eradicates the fault.

If several faults occur, they are displayed one after the other.

1. Reset the control panel by pressing the key for 3 seconds,
when an error message is displayed.

In economy mode, the appliance will not run a domestic hot water
heating cycle after a central heating cycle.

2. Display the current operating status by briefly pressing the key.

10.2.2 Accessing the error log

Note
The error and fault codes are listed together in the log.

1. Access the menus by pressing the two keys on the right simultane
ously.

Fig.49 Error code display

MW-3000240-4

Fig.50 Fault code display

MW-6000210-4

Fig.51

MW-5000061-3

Fig.52

MW-5000060-3

Fig.53

MW-2000369-1

10 Troubleshooting

7628759 - v03 - 12012017 EFU C 35

2. Select the Malfunction menu by pressing the key.

3. Select the PCB by pressing the or keys. The icon appears.
Confirm the PCB selection by pressing the key: the PCB name

appears.

Note
The : parameter flashes. corresponds to the

number of stored errors.

4. Go to the error details by pressing the key.

5. Scroll through the errors by pressing the or key. When this
menu opens, the row of the error in the log appears briefly. The PCB

name appears. Go back to the error list by pressing the h key.

Note
The errors are stored from the most recent to the oldest.

6. Go back to the : display by pressing the h key. Press
the key: the parameter flashes after the errors. cor

responds to the PCB selected.

Clear the error log by pressing the key.

7. Exit the Malfunctions menu by pressing the h key.

Fig.54

MW-5000011-3

Fig.55

MW-1000689-1

Fig.56

MW-1000690-1

10 Troubleshooting

36 EFU C 7628759 - v03 - 12012017

11 Environmental

11.1 Disposal and Recycling

Warning
Removal and disposal of the boiler must be carried out by a quali
fied installer in accordance with local and national regulations.

11.2

Energy savings

Energy-saving advice:

Do not block ventilation outlets.
Do not cover the radiators. Do not hang curtains in front of the radiators.
Install reflective panels behind the radiators to prevent heat losses.
Insulate the pipes in rooms that are not heated (cellars and lofts).
Close the radiators in rooms not in use.
Do not run hot (or cold) water pointlessly.
Install an energy-saving shower head, which can save up to 40 % ener
gy.
Take showers rather than baths. A bath consumes twice as much water
and energy.

Fig.57 Recycling

MW-3000179-03

11 Environmental

7628759 - v03 - 12012017 EFU C 37

12 Warranty

12.1 General

We would like to thank you for buying one of our appliances and for your
trust in our product.

In order to ensure continued safe and efficient operation, we recommend
that the product is regularly inspected and maintained.

Your installer and our service department can assist with this.

12.2

Terms of warranty

The following provisions do not affect the application, in favour of the buy
er, of the legal provisions with regard to hidden defects that are applicable
in the buyer's country.

This appliance comes with a warranty that covers all manufacturing faults;
the warranty period will commence on the date of purchase stated on the
installer's invoice.

The warranty period is stated in our price list.

As a manufacturer, we can by no means be held liable if the appliance is
used incorrectly, is poorly maintained or not maintained at all, or is not in
stalled correctly (it is your responsibility to ensure that installation is carried
out by a qualified installer).

In particular, we cannot be held liable for material damage, intangible los
ses or physical injury resulting from an installation that does not comply
with:

Legal or regulatory requirements or provisions laid down by the local au
thorities.
National or local regulations and special provisions relating to the instal
lation.
Our manuals and installation instructions, in particular in terms of regular
maintenance of the appliances.

Our warranty is limited to the replacement or repair of the parts found to
be defective by our technical services team, excluding labour, transfer and
transport costs.

Our warranty does not cover replacement or repair costs for parts that may
become defective due to normal wear, incorrect usage, the intervention of
unqualified third parties, inadequate or insufficient supervision or mainte
nance, a mains supply that is not appropriate or the use of unsuitable or
poor quality fuel.

Smaller parts, such as motors, pumps, electrical valves etc., are guaran
teed only if these parts have never been dismantled.

The rights established in European Directive 99/44/EEC, implemented by
legal decree No. 24 of 2 February 2002 and published in Official Journal
No. 57 of 8 March 2002, remain in force.

12 Warranty

38 EFU C 7628759 - v03 - 12012017

13 Appendix

13.1 Product fiche

Tab.16 Product fiche for boiler space heaters

EFU C 19 EFU C 24 EFU C 32

Seasonal space heating energy efficiency class

BBB

Rated heat output

(Prated or Psup)

kW 18 23 31

Seasonal space heating energy efficiency % 88 89 88

Annual energy consumption GJ 59 74 101

Sound power level LWA indoors dB 63 63 63

See
For specific precautions on assembly, installation and mainte
nance: see the chapter on Safety Instructions.

13.2 Product fiche - Temperature Controls

Tab.17 Product fiche for the Temperature controls

B-Control

Class III

Contribution to space heating energy efficiency % 1.5

13.3 Product data sheet - Temperature controls

Tab.18 Product data sheet for the Temperature controls

IniControl 2

Class III

Contribution to space heating energy efficiency % 1.5

13 Appendix

7628759 - v03 - 12012017 EFU C 39

13.4 Product fiche

Fig.58 The boiler's product fiche indicates the space heating energy efficiency of the product.

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

%

from fi che of solar device

Solar contribution AND Supplementary heat pump

Solar contribution

The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed
in a building, as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the
products in relation to building size and characteristics.

Boiler and supplementary heat pump installed with low temperature heat emitters at 35°C ?

Seasonal space heating energy effi ciency class of package

Seasonal space heating energy effi ciency of package

OR

Seasonal space heating energy effi ciency (in %)

Supplementary heat pump

Tank rating

Collector effi ciency (in
%)

Tank volume (in m³) Collector size (in m²)

Seasonal space heating energy effi ciency (in %)

Supplementary boiler

Class I = 1%, Class II = 2%, Class III = 1.5%,
Class IV = 2%, Class V = 3%, Class VI = 4%,
Class VII = 3.5%, Class VIII = 5%

Temperature control

Seasonal space heating energy effi ciency of boiler

(1) If tank rating is above A, use 0.95

select smaller value

from fi che of heat pump

from fi che of heat pump

from fi che of boiler

from fi che of temperature control

I The value of the seasonal space heating energy efficiency of the

preferential space heater, expressed in %.

13 Appendix

40 EFU C 7628759 - v03 - 12012017

II The factor for weighting the heat output of preferential and supple

mentary heaters of a package as set out in the following table.

III The value of the mathematical expression: 294/(11 · Prated),

whereby ‘Prated’ is related to the preferential space heater.

IV The value of the mathematical expression 115/(11 · Prated),

whereby ‘Prated’ is related to the preferential space heater.

Tab.19 Weighting of boilers

Psup / (Prated + Psup)

(1)(2)

II, package without hot water storage tank II, package with hot water storage tank

0 0 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.

Tab.20 Package efficiency

EFU C 19 EFU C 24 EFU C 32

Seasonal space heating energy efficiency of package combined
with IniControl 2

% 90 91 90

Seasonal space heating energy efficiency of package combined
with B-Control

% 90 91 90

13 Appendix

7628759 - v03 - 12012017 EFU C 41

13 Appendix

42 EFU C 7628759 - v03 - 12012017

© Copyright

All technical and technological information contained in these technical instructions, as well as any drawings and technical de
scriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. Subject to alterations.

DE DIETRICH THERMIQUE
57, rue de la Gare F- 67580 MERTZWILLER - BP 30

MW-8000005-7

DUEDI S.r.l.

DE DIETRICH SERVICE

BDR Thermea (Czech republic) s.r.o

www.duediclima.it

www.dedietrich.cz

Distributore Ufficiale Esclusivo

De Dietrich-Thermique Italia

www.dedietrich-heiztechnik.com

Freecall 0800 / 201608

Jeseniova 2770/56

130 00 Praha 3

+49 (0)25 72 / 9161-0

+49 (0)25 72 / 9161-102

[e-mail]

Via Passatore, 12 - 12010
San Defendente di Cervasca
CUNEO

[phone]
[phone]
[e-mail]

[phone]

[e-mail]

IT

DE DIETRICH THERMIQUE Iberia S.L.U.

www.dedietrich-calefaccion.es

C/Salvador Espriu, 11

08908 L’HOSPITALET de LLOBREGAT

[phone]
[e-mail]

ES

129164, Россия, г. Москва

Зубарев переулок, д. 15/1

Бизнес-центр «Чайка Плаза»,

офис 309

[phone]

CZ

DE DIETRICH THERMIQUE S.A.S

[e-mail]

7628759 - v03 - 12012017

7628759-001-03