DeDietrich MCA 45 - 65 - 90 - 115 Manual

Ireland
Innovens Pro EN
Wall-hung gas condensing boilers
MCA 45 - 65 - 90 - 115
Installation and
Service Manual
300024755-001-A

EG declaration of conformity
The device complies with the standard type described in the EG
declaration of conformity. It was manufactured and commissioned in
accordance with European directives.
The original of the declaration of compliance is available from the
manufacturer.
R000040-A

Contents
1 Introduction ................................................................................................6
1.1 Used symbols .......................................................6
1.2 Abbreviations ........................................................6
1.3 General ..................................................................7
1.3.1 Manufacturer's liability .............................................7
1.3.2 Installer's liability .....................................................7
1.3.3 User's liability ..........................................................7
1.4 Homologations ......................................................8
1.4.1 Certifications ...........................................................8
1.4.2 Equipment categories .............................................8
1.4.3 Additional Directives ................................................8
1.4.4 Factory test .............................................................9
2Safety instructions and recommendations ............................................10
2.1 Safety instructions .............................................10
2.2 Recommendations ..............................................10
3 Technical description ..............................................................................12
3.1 General description ............................................12
3.2 Main parts ............................................................12
3.3 Operating principle .............................................12
3.3.1 Shunt pump ...........................................................12
3.3.2 System in cascade ................................................13
3.3.3 Calorifier connection .............................................13
3.3.4 Water flow rate ......................................................13
3.4 Technical characteristics ...................................13
3.4.1 Sensor characteristics ...........................................15
4 Installation ................................................................................................16
4.1 Regulations governing installation ...................16
4.2 Package list .........................................................16
4.2.1 Standard delivery ..................................................16
4.2.2 Accessories ...........................................................16
4.3 Choice of the location ........................................18
4.3.1 Data plate ..............................................................18
4.3.2 Location of the appliance ......................................18
4.3.3 Ventilation .............................................................19
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4.3.4 Main dimensions ...................................................20
4.4 Positioning the boiler .........................................21
4.5 Hydraulic connections .......................................21
4.5.1 Flushing the system ..............................................21
4.5.2 Connection of the heating circuit ...........................22
4.5.3 Connecting the expansion vessel .........................23
4.5.4 Connecting the condensate discharge pipe ..........24
4.6 Gas connection ...................................................24
4.7 Flue gas system connections ............................25
4.7.1 Classification .........................................................25
4.7.2 Lengths of the air/flue gas pipes ...........................26
4.8 Installing the outside sensor .............................27
4.8.1 Choice of the location ............................................27
4.8.2 Installing the outside sensor ..................................28
4.9 Electrical connections ........................................28
4.9.1 Control unit ............................................................28
4.9.2 Recommendations ................................................29
4.9.3 Fitting and connecting the control panel ...............30
4.9.4 Position of the PCBs .............................................30
4.9.5 Accessing the connection terminal blocks ............31
4.9.6 Connecting the pump ............................................32
4.9.7 Connecting a direct heating circuit ........................34
4.9.8 Connecting a direct heating circuit and a domestic hot
water tank ..............................................................35
4.9.9 Connecting two circuits and a domestic hot water tank
after the mixing tank ..............................................36
4.9.10 Hot water storage tank connection ........................38
4.9.11 Pool connection .....................................................44
4.9.12 Connecting a mixed tank .......................................46
4.9.13 Connecting the options .........................................47
4.9.14 Connection in cascade ..........................................49
4.10 Electrical diagram ...............................................51
4.11 Filling the system ...............................................52
4.11.1 Water treatment ....................................................52
4.11.2 Filling the siphon ...................................................53
4.11.3 Filling the system ..................................................53
5 Start-up - DIEMATIC iSystem ..................................................................54
5.1 Control panel .......................................................54
5.1.1 Description of the keys ..........................................54
5.1.2 Description of the display ......................................55
5.1.3 Access to the various browsing levels ..................57
5.1.4 Browsing in the menus ..........................................58
5.2 Check points before commissioning ................59
5.2.1 Preparing the boiler for commissioning .................59
5.2.2 Gas circuit .............................................................60
5.2.3 Hydraulic circuit .....................................................60
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5.2.4 Electrical connections ...........................................60
5.3 Putting the appliance into operation ................60
5.4 Gas settings ........................................................62
5.4.1 Adapting to another gas type ................................62
5.4.2 Setting the air/gas ratio (Full load) ........................62
5.4.3 Setting the air/gas ratio (Part load) ......................64
5.5 Checks and adjustments after
commissioning ...................................................65
5.5.1 Displaying the parameters in extended
mode .....................................................................65
5.5.2 Setting the parameters specific to the
installation .............................................................66
5.5.3 Naming the circuits and generators ......................68
5.5.4 Setting the heating curve ......................................69
5.5.5 Finalizing work ......................................................71
5.6 Reading out measured values ...........................72
5.7 Changing the settings ........................................73
5.7.1 Language selection ...............................................73
5.7.2 Calibrating the sensors .........................................73
5.7.3 "Professional" settings ..........................................75
5.7.4 Configuring the network ........................................81
5.7.5 Return to the factory settings ................................87
6 Start-up - IniControl .................................................................................88
6.1 Control panel .......................................................88
6.1.1 Description of the keys ..........................................88
6.1.2 Description of the display ......................................89
6.2 Check points before commissioning ................90
6.2.1 Preparing the boiler for commissioning .................90
6.2.2 Gas circuit .............................................................91
6.2.3 Hydraulic circuit .....................................................91
6.2.4 Electrical connections ...........................................91
6.3 Putting the appliance into operation ................92
6.4 Gas settings ........................................................93
6.4.1 Adapting to another gas type ................................93
6.4.2 Setting the air/gas ratio (Full load) ........................93
6.4.3 Setting the air/gas ratio (Part load) ......................94
6.5 Checks and adjustments after
commissioning ...................................................95
6.5.1 Setting the heating curve ......................................95
6.5.2 Finalizing work ......................................................96
6.6 Reading out measured values ...........................97
6.6.1 Reading out measured values ..............................97
6.6.2 Readout from the hour counter and percentage of
successful starts ....................................................99
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6.6.3 Status and sub-status ...........................................99
6.7 Changing the settings ......................................100
6.7.1 Description of the parameters .............................100
6.7.2 Modification of the installer-level parameters ......103
6.7.3 Setting the maximum heat input for central heating
operation .............................................................104
6.7.4 Return to the factory settings "Reset Param" ......105
6.7.5 Carrying out an auto-detect .................................105
7 Switching off the appliance ...................................................................106
7.1 Installation shutdown .......................................106
7.2 Frost protection ................................................106
8 Checking and maintenance ...................................................................107
8.1 General instructions .........................................107
8.2 Chimney sweep instructions ...........................107
8.2.1 Control panel DIEMATIC iSystem .......................107
8.2.2 Control panel IniControl ......................................108
8.3 Customising maintenance ...............................108
8.3.1 Maintenance message ........................................109
8.3.2 Installer's contact details .....................................110
8.4 Standard inspection and maintenance
operations .........................................................110
8.4.1 Checking the hydraulic pressure .........................110
8.4.2 Checking the ionisation current ...........................111
8.4.3 Checking the tightness of the combusted gases
evacuation and air inlet connections ...................111
8.4.4 Checking combustion ..........................................111
8.4.5 Checking the automatic air vent ..........................112
8.4.6 Checking the siphon ............................................113
8.4.7 Checking the burner and cleaning the heat
exchanger ...........................................................114
8.5 Specific maintenance operations ....................115
8.5.1 Inspection of the ignition electrode ......................115
8.5.2 Replacing the non-return valve ...........................116
8.5.3 Assembling the boiler ..........................................117
9 Troubleshooting .....................................................................................118
9.1 Anti-hunting ......................................................118
9.2 Messages (Code type Bxx or Mxx) ..................118
9.3 Message history ................................................121
9.3.1 Control panel DIEMATIC iSystem .......................121
9.3.2 Control panel IniControl ......................................122
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9.4 Faults (Code type Lxx or Dxx) .........................123
9.4.1 Control panel DIEMATIC iSystem .......................124
9.4.2 Control panel IniControl ......................................124
9.4.3 List of errors ........................................................124
9.4.4 Deletion of sensors from the memory in the
PCB .....................................................................132
9.4.5 Deleting the IOBL 3WV modules from the memory in
the PCB ..............................................................133
9.5 Failure history ...................................................133
9.5.1 Control panel DIEMATIC iSystem .......................133
9.5.2 Control panel IniControl ......................................134
9.6 Parameter and input/output check (mode
tests) ..................................................................135
9.6.1 Control panel DIEMATIC iSystem .......................135
9.6.2 Control panel IniControl ......................................137
9.6.3 Control system sequence ....................................137
10 Spare parts ..............................................................................................139
10.1 General ..............................................................139
10.2 Spare parts ........................................................139
10.2.1 Casing .................................................................140
10.2.2 Heat exchanger and burner - MCA 45 ................141
10.2.3 Heat exchanger and burner - MCA 65 ................142
10.2.4 Heat exchanger and burner - MCA 90/115 .........143
10.2.5 Fan - MCA 45/65 .................................................144
10.2.6 Fan - MCA 90 ......................................................145
10.2.7 Fan - MCA 115 ....................................................146
10.2.8 Control panel .......................................................147
10.2.9 Spare parts list ....................................................148
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1 Introduction
1.1 Used symbols
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
4IOBL: In One By Legrand - 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
1. Introduction MCA 45 - 65 - 90 - 115
606/09/2010 - 300024755-001-A

1.3 General
1.3.1. Manufacturer's liability
Our products are manufactured in compliance with the requirements
of the various european applicable 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 abide by the instructions given in the user manual.
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.
MCA 45 - 65 - 90 - 115 1. Introduction
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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 Homologations
1.4.1. Certifications
CE identification no PIN 0063CL3333
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
1.4.2. Equipment categories
Gas category Gas type Connection pressure (mbar)
II2H3P Natural gas H (G20) 20
Propane (G31) 37
The boiler is preset in the factory to operate on natural gas H (G20).
For operation on another group of gases:
4With DIEMATIC iSystem: ¼ "Adapting to another gas type",
page 62.
4With IniControl: ¼ "Adapting to another gas type", page
93.
1.4.3. Additional Directives
Apart from the legal provisions and Directives, the additional
Directives described in these instructions must also be observed.
For all provisions and Directives referred to in these instructions, it is
agreed that all addenda or subsequent provisions will apply at the
time of installation.
WARNING
Installation of the appliance must be done by a qualified
engineer in accordance with prevailing local and national
regulations.
1. Introduction MCA 45 - 65 - 90 - 115
806/09/2010 - 300024755-001-A