DeDietrich Innovens MCA 15 Manual de usuario

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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