DeDietrich Innovens MCA 15 Manuel utilisateur
Ireland
Innovens EN
Wall-hung gas condensing boilers
MCA 15 - MCA 25
MCA 25/28 MI
User Guide
300024159-001-B
Contents
1 Introduction ................................................................................................4
1.1 Symbols used .......................................................4
1.2 Abbreviations ........................................................4
1.3 General ..................................................................5
1.3.1 Manufacturer's liability .............................................5
1.3.2 Installer's liability .....................................................5
1.3.3 User's liability ..........................................................5
1.4 Certifications .........................................................6
2Safety instructions and recommendations ..............................................7
2.1 Safety instructions ...............................................7
2.2 Recommendations ................................................8
3Description ..................................................................................................9
3.1 Operating principle ...............................................9
3.1.1 Gas/air setting .........................................................9
3.1.2 Combustion .............................................................9
3.1.3 Heating and domestic hot water production ............9
3.2 Main parts ............................................................10
3.3 Control panel .......................................................11
3.3.1 Description of the keys ..........................................11
3.3.2 Description of the display ......................................12
3.3.3 Browsing in the menus ..........................................14
4 Operating the boiler .................................................................................16
4.1 Commissioning the boiler ..................................16
4.2 Reading out measured values ...........................16
4.3 Changing the settings ........................................18
4.3.1 Setting the set point temperatures ........................18
4.3.2 Selecting the operating mode ...............................19
4.3.3 Forcing domestic hot water production .................20
4.3.4 Setting the contrast and lighting on the
display ...................................................................20
4.3.5 Setting the time and date ......................................21
4.3.6 Selecting a timer programme ................................21
4.3.7 Customising a timer programme ...........................22
123/08/2011 - 300024159-001-B
4.4 Installation shutdown .........................................24
4.5 Frost protection ..................................................24
5 Checking and maintenance .....................................................................25
5.1 General instructions ...........................................25
5.2 Periodic checks ..................................................25
5.3 Filling the system ...............................................26
5.4 Bleeding the heating system .............................27
5.5 Draining the installation .....................................29
6 Troubleshooting .......................................................................................31
6.1 Anti-hunting ........................................................31
6.2 Messages (Code type Bxx or Mxx) ....................31
6.3 Faults (Code type Lxx or Dxx) ...........................33
7 Technical specifications ..........................................................................39
7.1 Technical specifications ....................................39
8 Energy savings .........................................................................................40
8.1 Energy-saving advice .........................................40
8.2 Recommendations ..............................................40
9 Warranty ....................................................................................................41
9.1 General ................................................................41
9.2 Warranty terms ...................................................41
Contents
223/08/2011 - 300024159-001-B
323/08/2011 - 300024159-001-B
1 Introduction
1.1 Symbols used
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.
¼ Signals a referral to other instructions or other pages in the
instructions.
1.2 Abbreviations
43CE: Collective conduit for sealed boiler
4DHW: Domestic hot water
4Interscenario switch: Home automation switch that can be used
to centralise and control several scenarios
4Hi: Lower heating value LHV (Nett)
4Hs: Higher heating value HHV (Gross)
4IOBL: Carrier current home automation bus
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
43WV: 3-way valve
MCA 15 - MCA 25 MCA 25/28 MI 1. Introduction
23/08/2011 - 300024159-001-B 4
1.3 General
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 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 fitter to explain your installation to you.
4Have the required checks and services done.
4Keep the instruction manuals in good condition close to the
appliance.
1. Introduction MCA 15 - MCA 25 MCA 25/28 MI
523/08/2011 - 300024159-001-B
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.
1.4 Certifications
CE identification no PIN 0063BT3444
NOx classification 5 (EN 297 pr A3, EN 656)
Type of connection Chimney: B23 , B33
Flue gas outlet: C13 , C33, C43, C53, C63, C83 , C93
MCA 15 - MCA 25 MCA 25/28 MI 1. Introduction
23/08/2011 - 300024159-001-B 6
2 Safety instructions and
recommendations
2.1 Safety 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:
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.
2. Safety instructions and recommendations MCA 15 - MCA 25 MCA 25/28 MI
723/08/2011 - 300024159-001-B
2.2 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 1,5 and 2 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
-Frost protection
MCA 15 - MCA 25 MCA 25/28 MI 2. Safety instructions and recommendations
23/08/2011 - 300024159-001-B 8
3 Description
3.1 Operating principle
3.1.1. Gas/air setting
The casing fitted to the boiler is also used as an air box. Air is sucked
in by the fan and gas injected into the venturi by the fan intake. The
fan rotation speed is set according to the settings parameters, the
thermal energy requirement and the temperatures measured by the
temperature sensors. The gas and air are mixed in the venturi. The
gas/air ratio ensures that the quantities of gas and air are adjusted to
each other. This provides optimum combustion on the entire output
range. The gas/air mixture is fed into the burner on top of the
exchanger.
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 back side of the heat exchanger. The heat released
during this condensation process (the latent heat or condensing heat)
is also transferred to the heating water. The cooled combustion gases
are evacuated via the combustion gas outlet flue. The condensation
water is evacuated via a siphon.
3.1.3. Heating and domestic hot water production
On heating and domestic hot water production type boilers, an
integrated plate exchanger heats the domestic water. A 3-way valve
determines whether the heated water is fed into the heating system
or the plate exchanger. A pick-up sensor signals that a hot water tap
is being opened. This signal is transmitted to the control panel, which
then switches the 3-way valve to the hot water position and trips the
heating pump. The 3-way valve is spring-loaded but only consumes
electricity when it switches to another position.
The heating water reheats the domestic water in the plate
exchanger. In comfort mode, if there is no hot water draw-off, the
boiler handles the periodic reheating of the plate exchanger. Any
limescale particles are kept out of the plate exchanger by a self-
cleaning water filter (self-cleans once every 76 hours).
3. Description MCA 15 - MCA 25 MCA 25/28 MI
923/08/2011 - 300024159-001-B
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