Twineo
EN
Gas fired floor-standing condensing boiler
EGC 25
User Guide
300026082-001-02
Contents
1 |
Introduction ................................................................................................ |
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1.1 |
Symbols used ....................................................... |
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1.1.1 |
Symbols used in the manual ................................... |
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1.1.2 |
Symbols used on the equipment ............................. |
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1.2 |
Abbreviations ........................................................ |
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1.3 |
General |
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1.3.1 |
Manufacturer’s liability ............................................. |
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1.3.2 |
Installer’s liability ..................................................... |
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1.3.3 |
User’s liability .......................................................... |
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1.4 |
Certifications ......................................................... |
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2 |
Safety instructions and recommendations .............................................. |
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2.1 |
Safety instructions ............................................... |
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2.2 |
Recommendations ................................................ |
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3 |
Description .................................................................................................. |
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3.1 |
Operating principle ............................................... |
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3.1.1 |
Gas/air setting ......................................................... |
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3.1.2 |
Combustion ............................................................. |
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3.2 |
Main parts ............................................................ |
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3.3 |
Control panel ....................................................... |
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3.3.1 |
Description of the keys .......................................... |
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3.3.2 |
Description of the display ...................................... |
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4 |
Operating the appliance .......................................................................... |
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4.1 |
Putting the appliance into operation ................ |
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4.2 |
Reading out measured values ........................... |
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4.3 |
Changing the settings ........................................ |
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4.3.1 |
Parameter descriptions ......................................... |
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4.3.2 |
Modification of the user-level parameters ............. |
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4.3.3 |
Setting the manual mode ...................................... |
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4.3.4 |
Changing the heating temperature ........................ |
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4.3.5 |
Modifying the domestic hot water temperature |
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setting .................................................................... |
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4.3.6 |
Modifying the domestic hot water set point |
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temperature ........................................................... |
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Contents |
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4.4 |
Installation shutdown |
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4.5 |
Antifreeze protection .......................................... |
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5 |
Checking and maintenance |
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5.1 |
General instructions ........................................... |
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5.2 |
Periodic checks .................................................. |
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6 |
Troubleshooting ....................................................................................... |
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6.1 ........................ |
Error messages (Sub - status 9 ) |
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6.2 ........................................ |
Faults (type code Exx) |
24 |
7 |
Technical specifications .......................................................................... |
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7.1 .................................... |
Technical specifications |
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8 |
Energy savings ......................................................................................... |
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8.1 ......................................... |
Energy - saving advice |
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8.2 .............................................. |
Recommendations |
29 |
9 |
Warranty .................................................................................................... |
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9.1 ................................................................ |
General |
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9.2 ................................................... |
Warranty terms |
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EGC 25 |
1. Introduction |
1Introduction
1.1Symbols used
1.1.1.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, obviate 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.
1.1.2.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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1. Introduction |
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EGC 25 |
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Caution: danger, live parts. |
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Disconnect the mains power prior to any operations. |
M002628-A
1.2Abbreviations
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
1.3General
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.
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EGC 25 |
1. Introduction |
1.3.2.Installer’s liability
The installer is responsible for the installation and inital start up 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.
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.
4Have the required checks and services done.
4Keep the instruction manuals in good condition close to the appliance.
This appliance is not intended to be used by persons (including children) whose physcial, sensory or mental capacity is impaired or persons with no experience or knowledge, unless they have the benefit, through the intermediary of a person responsible for their safety, of supervision or prior instructions regarding use of the appliance. Care should be taken to ensure that children do not play with the appliance.
To prevent hazardous situations from arising, if the mains lead is damaged it must be replaced by the original manufacturer, the manufacturer’s dealer or another suitably skilled person.
1.4Certifications
CE identification no |
CE-0085CM0178 |
NOx classification |
5 (EN 297 pr A3, EN 483) |
Type of connection |
Chimney: B23, B33 |
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Flue gas outlet: C13(x), C33(x), C43(x), C53, C83(x), |
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C93(x) |
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2. Safety instructions and recommendations |
EGC 25 |
2Safety instructions and recommendations
2.1Safety instructions
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.
WARNING
Depending on the settings of the appliance:
4 Thetemperatureofthefluegasconduitsmayexceed 60°C.
4 The temperature of the radiators may reach 85°C.
4 Thetemperatureofthedomestichotwatermayreach 65°C.
CAUTION
Do not neglect to service the appliance:
4 For completely safe and optimum operation, you must have your boiler regularly serviced by an approved installer.
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EGC 25 |
2. Safety instructions and recommendations |
2.2Recommendations
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 0.08 and 1.5 bar).
4Keep the appliance accessible at all times.
4Never remove or cover labels and rating plates affixed to the appliance.Labelsandratingplatesmustbelegiblethroughoutthe 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
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3. Description |
EGC 25 |
3Description
3.1Operating principle
3.1.1.Gas/air setting
Air is sucked in by the fan and the gas injected into the venturi attachedtothefaninlet.Thefanrotationspeedmodulatesandadapts tothermalenergyrequirementsthankstothetemperaturesmeasured bythevarioussensors.Thegasandairaremixedintheventuri,which enables operation at a constant ratio. The noise of the venturi is absorbed by a silencer attached to its inlet. The gas/air mixture is carried to the burner in the top of the exchanger, guided by the premix channel.
3.1.2.Combustion
The burner heats the heating water circulating in the heat exchanger. At a return temperature lower than around 55°C, the flue gases cool down to a temperature lower than the dew point, thus causing the condensation of the water vapour contained in the flue gases in the lower section of the heat exchanger. The heat released duringthiscondensationprocess(thelatentheatorcondensingheat) isalsotransferredtotheheatingwater.Thecooledcombustiongases are evacuated via the combustion gas outlet flue. The condensation water is evacuated via a siphon.
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