DeDietrich TwineoEGC 25 User manual

Twineo EN
Gas fired floor-standing condensing boiler
EGC 25
User Guide
300026082-001-05

Contents
1 Safety instructions .....................................................................................4
1.1 General safety instructions .................................4
1.2 Recommendations ................................................5
1.3 Liabilities ...............................................................6
1.3.1 Manufacturer’s liability .............................................6
1.3.2 Installer’s liability .....................................................6
1.3.3 User’s liability ..........................................................7
2About this manual ......................................................................................8
2.1 Symbols used .......................................................8
2.1.1 Symbols used in the manual ...................................8
2.1.2 Symbols used on the equipment .............................8
2.2 Abbreviations ........................................................9
3Technical specifications ..........................................................................10
3.1 Certifications .......................................................10
3.2 Technical specifications ....................................10
4 Description ................................................................................................12
4.1 Operating principle .............................................12
4.1.1 Gas/air setting .......................................................12
4.1.2 Combustion ...........................................................12
4.2 Main parts ............................................................13
4.3 Control panel .......................................................14
4.3.1 Description of the keys ..........................................14
4.3.2 Description of the display ......................................14
5 Operating the appliance ..........................................................................17
5.1 Putting the appliance into operation ................17
5.2 Reading out measured values ...........................17
5.3 Changing the settings ........................................18
5.3.1 Parameter descriptions .........................................18
5.3.2 Modification of the user-level parameters .............19
5.3.3 Setting the manual mode ......................................21
5.3.4 Changing the heating temperature ........................21
5.3.5 Modifying the domestic hot water temperature
setting ....................................................................21
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5.3.6 Modifying the domestic hot water set point
temperature ...........................................................22
5.4 Installation shutdown .........................................22
5.5 Antifreeze protection ..........................................22
6 Checking and maintenance .....................................................................23
6.1 General instructions ...........................................23
6.2 Periodic checks ..................................................23
7 Troubleshooting .......................................................................................25
7.1 Error messages (Sub-status 9) ........................25
7.2 Faults (type code Exx) ........................................27
8 Energy savings .........................................................................................31
8.1 Energy-saving advice .........................................31
8.2 Recommendations ..............................................31
9 Warranty ....................................................................................................32
9.1 General ................................................................32
9.2 Warranty terms ...................................................32
10 Appendix – Information on the Ecodesign and Energy Labelling
Directives ..................................................................................................33
Contents
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1 Safety instructions
1.1 General safety instructions
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.
CAUTION
Only qualified persons are authorised to
assemble, install and maintain the installation.
DANGER
If you smell gas:
1. Do not use a naked flame, do not smoke, do
not operate electrical contacts or switches
( doorbell, light, motor, lift, etc..).
2. Shut off the gas supply.
3. Open the windows.
4. Evacuate the premises.
5. Call your fitter.
DANGER
If you smell flue gases:
1. Switch the appliance off.
2. Open the windows.
3. Evacuate the premises.
4. Call your fitter.
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WARNING
Depending on the settings of the appliance:
4The temperature of the flue gas conduits
may exceed 60°C.
4The temperature of the radiators may reach
85°C.
4The temperature of the domestic hot water
may reach 65°C.
CAUTION
Do not neglect to service the appliance:
4For completely safe and optimum operation,
you must have your boiler regularly serviced
by an approved installer.
1.2 Recommendations
WARNING
Only qualified professionals are authorised to
work on the appliance and the installation.
4Regularly check the water pressure in the installation
(minimum pressure 0.8 bar, recommended pressure
between 0.8 and 1.5 bar).
4Keep the appliance accessible at all times.
4Never remove or cover labels and rating plates affixed
to the appliance. Labels and rating plates must be
legible throughout the entire lifetime of the appliance.
4The appliance should be on Summer or Antrifreeze
mode rather than switched off to guarantee the
following functions:
-Anti blocking of pumps
-Antifreeze protection
1. Safety instructions EGC 25
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1.3 Liabilities
1.3.1. Manufacturer’s liability
Our products are manufactured in compliance with the
requirements of the various applicable European
Directives. They are therefore delivered with [ marking
and all relevant documentation.
In the interest of customers, we are continuously
endeavouring to make improvements in product quality.
All the specifications stated in this document are therefore
subject to change without notice.
Our liability as the manufacturer may not be invoked in the
following cases:
4Failure to abide by the instructions on using the
appliance.
4Faulty or insufficient maintenance of the appliance.
4Failure to abide by the instructions on installing the
appliance.
1.3.2. Installer’s liability
The installer is responsible for the installation and
commissioning of the appliance. The installer must
respect the following instructions:
4Read and follow the instructions given in the manuals
provided with the appliance.
4Carry out installation in compliance with the prevailing
legislation and standards.
4Perform the initial start up and carry out any checks
necessary.
4Explain the installation to the user.
4If a maintenance is necessary, warn the user of the
obligation to check the appliance and maintain it in
good working order.
4Give all the instruction manuals to the user.
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1.3.3. User’s liability
To guarantee optimum operation of the appliance, the
user must respect the following instructions:
4Read and follow the instructions given in the manuals
provided with the appliance.
4Call on qualified professionals to carry out installation
and initial start up.
4Get your installer to explain your installation to you.
4Ensure the Appliance is serviced in accordance with
the manufacturer’s instructions by a suitable qualified
person.
4Keep the instruction manuals in good condition close
to the appliance.
1. Safety instructions EGC 25
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2 About this manual
2.1 Symbols used
2.1.1. Symbols used in the manual
In these instructions, various danger levels are employed to draw the
user’s attention to particular information. In so doing, we wish to
safeguard the user’s safety, highlight hazards and guarantee correct
operation of the appliance.
DANGER
Risk of a dangerous situation causing serious physical
injury.
WARNING
Risk of a dangerous situation causing slight physical
injury.
CAUTION
Risk of material damage.
Signals important information.
¼Signals a referral to other instructions or other pages in the
instructions.
2.1.2. Symbols used on the equipment
4Protective earthing
~Alternating current
Before installing and commissioning the device, read
carefully the instruction manuals provided.
Dispose of the used products in an appropriate recovery
and recycling structure.
This appliance must be connected to the protective earth.
D000241-C
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Caution: danger, live parts.
Disconnect the mains power prior to any operations.
2.2 Abbreviations
43CE: Collective conduit for sealed boiler
4DHW: Domestic hot water
4Hi: Lower heating value LHV (Nett)
4Hs: Higher heating value HHV (Gross)
4PPS: Polypropylene hardly inflammable
4PCU: Primary Control Unit - PCB for managing burner operation
4PSU: Parameter Storage Unit - Parameter storage for PCBs
PCU and SU
4SCU: Secondary Control Unit - control panel PCB
4SU: Safety Unit - Safety PCB
4HRU: Heat Recovery Unit
43WV: 3-way valve
4HL: High Load - DHW tank with plate exchanger
4SL: Standard Load - DHW tank with coil
4SHL: Solar High Load - Solar DHW tank with plate exchanger
4SSL: Solar Standard Load - Solar DHW tank with coil
1 2
M002628-A
2. About this manual EGC 25
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