DeDietrich MCA 45 - 65 - 90 - 115, Innovens Pro MCA 45, Innovens Pro MCA 65, Innovens Pro MCA 90, Innovens Pro MCA 115 Installation And Service Manual

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Ireland

Innovens Pro

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

2 Safety 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

4 3CE: Collective conduit for sealed boiler 4 DHW: Domestic hot water 4 Interscenario switch: Home

automation switch that can be used

to centralise and control several scenarios

4 IOBL: In One By Legrand - Carrier current home automation bus 4 PPS: Polypropylene hardly inflammable 4 PCU: Primary Control Unit - PCB for managing burner operation 4 PSU: Parameter Storage Unit - Parameter storage for PCBs

PCU and SU

4 SCU: Secondary Control Unit - control panel PCB 4 SU: Safety Unit - Safety PCB

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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:

4 Failure to abide by the instructions on using the appliance. 4 Faulty or insufficient maintenance of the appliance. 4 Failure 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:

4 Read and follow the instructions given in the manuals provided

with the appliance.

4 Carry out installation in compliance with the prevailing legislation

and standards.

4 Perform the initial start up and carry out any checks necessary. 4 Explain the installation to the user. 4 If a maintenance is necessary, warn the user of the obligation to

check the appliance and maintain it in good working order.

4 Give 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:

4 Read and abide by the instructions given in the user manual. 4 Call on qualified professionals to carry out installation and initial

start up.

4 Get your fitter to explain your installation to you. 4 Have the required checks and services done. 4 Keep 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, B

Flue gas outlet: C13, C33, C43, C53, C63, C83, C

1.4.2. Equipment categories

Gas category Gas type Connection pressure (mbar)

2H3P

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:

4 With DIEMATIC iSystem: ¼ "Adapting to another gas type",

page 62.

4 With 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

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1.4.4. Factory test

Before leaving the factory, each boiler is set for optimum performance and tested to check the following items:

4 Electrical safety 4 Adjustment (CO2) 4 Water tightness 4 Gas tightness 4 Parameter settings

MCA 45 - 65 - 90 - 115 1. Introduction

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2 Safety instructions and

recommendations

2.1 Safety instructions

DANGER

If you smell gas:

Do not use a naked flame, do not smoke, do not operate electrical contacts or switches ( doorbell, light, motor, lift, etc..).

2. Isolate the gas supply.

3. Open the windows.

4. Trace possible leaks and seal them immediately.

5. If the gas leak is before the gas meter, contact the gas supplier.

DANGER

If you smell flue gases:

Switch the appliance off.

2. Open the windows.

3. Trace possible leaks and seal them immediately.

2.2 Recommendations

WARNING

4 Installation and maintenance of the boiler must be

carried out by a qualified professional in compliance with prevailing local and national regulations.

4 When working on the boiler, always disconnect the

boiler from the mains and close the main gas inlet valve.

4 After maintenance or repair work, check all

installations to ensure that there are no leaks.

CAUTION

The boiler must be installed in a frost-free environment.

Keep this document close to the place where the boiler is installed.

Casing components

2. Safety instructions and recommendations MCA 45 - 65 - 90 - 115

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Only remove the casing for maintenance and repair operations. Put the casing back in place after maintenance and repair operations.

Instructions stickers

The

instructions and warnings affixed to the appliance must never be removed or covered and must remain legible during the entire lifespan of the boiler. Immediately replace damaged or illegible instructions and warning stickers.

Modifications

Modifications may only be made to the boiler after the written permission of De Dietrich Thermique to do so.

MCA 45 - 65 - 90 - 115 2. Safety instructions and recommendations

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3 Technical description

3.1 General description

Wall-hung gas condensing boilers

4 High efficiency heating (Production of domestic hot water can be

ensured by a separate hot water calorifier).

4 Low pollutant emissions. 4 DIEMATIC iSystem or IniControl electronic control panel. 4 Flue gas evacuation by a forced flue, chimney or bi-flow type

connection.

4 Very suitable for cascade systems with several boilers.

3.2 Main parts

Flue gas outlet / Air intake

Casing/air box

Heat exchanger (Central heating)

Outlet for measuring combustion gases

Ignition/ionization electrode

Mixer pipe

Combined venturi and gas valve unit

Áir intake silencer

Instrument box

Siphon

Box for the control PCBs

Fan

Water flow pipe

3.3 Operating principle

3.3.1. Shunt pump

The boiler is supplied without a pump. When choosing a pump, take account of the boiler resistance and system resistance.

¼ See chapter: "Technical characteristics", page

13.

T002036-B

4 55 6

2 3

11 10

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If possible, install the pump directly under the boiler on the return connection.

¼ See chapter: "Connection of the heating circuit", page

22.

CAUTION

The pump may have a maximum input of 200 W. Use an auxiliary relay for a pump with a larger input.

3.3.2. System in cascade

The boiler is ideally suited for a cascade system. There are a number of standard solutions available.

For example:

4 Cascade sets (quick assembly) for the installation of 2 to 7 boilers

next to each other or 3 to 10 boilers mounted back to back on a free-standing frame. When the boilers are mounted next to each other, they can be mounted either on the wall or on a free-standing frame.

Please contact us for further information.

3.3.3. Calorifier connection

A calorifier can be connected to the boiler. Our product range includes various calorifiers.

Please contact us for further information.

The calorifier can be connected to the boiler in two ways:

4 Using a three-way valve. 4 Using a calorifier pump.

3.3.4.

Water flow rate

The boiler's modulating control system limits the maximum difference in

temperature between the heating flow and return and the maximum speed at which the flow temperature increases. For this reason the boiler is, so to speak, insensitive to a flow which is too low.

In all cases, maintain a minimum water flow of 0,4 m3/h.

3.4 Technical characteristics

MCA 45 - 65 - 90 - 115 3. Technical description

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Boiler type

MCA 45 MCA 65 MCA 90 MCA 115

General

Flow rate setting Adjustable

Modulating, Start/Stop, 0 - 10 V

Nominal output (Pn) Heating System (80/60 °C)

minimum-maximum kW 8,0 - 40,0 12,0 - 61,0 14,1 - 84,2 16,6 - 107,0 Factory setting kW 40,0 61,0 84,2 107,0

Nominal output (Pn) Heating System (50/30 °C)

minimum-maximum kW 8,9 - 43,0 13,3 - 65,0 15,8 - 89,5 18,4 - 114,0 Factory setting kW 43,0 65,0 89,5 114,0

Nominal input (Qn) Heating System (Hi)

minimum-maximum kW 8,2 - 41,2 12,2 - 62,0 14,6 - 86,0 17,2 - 110,2 Factory setting kW 41,2 62,0 86,0 110,2

Nominal input(Qn) Heating System (Hs)

minimum-maximum kW 9,1 - 45,7 13,6 - 68,8 16,2 - 95,5 19,1 - 122,4 Factory setting kW 45,7 68,8 95,5 122,4

Heating efficiency under full load (Hi) (80/60 °C)

- % 97,2 98,3 97,9 96,6

Heating efficiency under full load (Hi) (50/30 °C)

- % 102,9 104,6 104,1 102,5

Heating efficiency under partial load (Hi) (Return temperature 60

°C)

- % 97,5 98,3 96,6 96,5

Heating efficiency under partial load (EN 92/42)(Return temperature

30°C)

- % 107,7 108,9 108,1 107,1

Data on the gases and combustion gases

Gas consumption G20 (Natural gas H) minimum-maximum

m3/h

0,9 - 4,4 1,3 - 6,6 1,5 - 9,1 1,8 - 11,7

Gas consumption G31 (Propane) minimum-maximum

m3/h

0,3 - 1,7 0,5 - 2,5 0,6 - 3,5 0,6 - 4,7

NOx-Emission per year or (EN 483)

mg/kWh 37 32 45 46 Mass flue gas flow rate minimum-maximum Kg/h 14 - 69 21 - 104 28 - 138 36 - 178 Flue gas temperature minimum-maximum °C 30 - 67 30 - 68 30 - 68 30 - 72 Maximum counter pressure

Pa 150 100 160 220

Characteristics of the heating circuit

Water content

l 5,5 6,5 7,5 7,5 Water operating pressure minimum kPa (bar) 80 (0,8) 80 (0,8) 80 (0,8) 80 (0,8) Water operating pressure (PMS) maximum kPa (bar) 400 (4,0) 400 (4,0) 400 (4,0) 400 (4,0) Water temperature maximum °C 110 110 110 110 Operating temperature maximum °C 90 90 90 90 Water resistance (∆T = 20K)

mbar 90 130 140 250

Electrical characteristics

Power supply voltage

V/Hz 230/50 230/50 230/50 230/50 Power consumption - Full load maximum W 68 88 125 199 Power consumption - Part load maximum W 18 23 20 45 Power consumption - Standby maximum W 5 6 4 7 Electrical protection index

IP X4D X4D X4D X4D

Other characteristics

Weight (empty) Total kg 53 60 67 68

Mounting

(1)

kg 49 56 65 65 Acoustic level at 1 meter

dBA 45 45 52 51

(1) Front panel removed

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3.4.1. Sensor characteristics

Outside sensor Outlet sensor circuit B+C

Domestic hot water sensor

Boiler sensor Return sensor

-20 °C

2392 ¨

0 °C

32014 ¨

-20 °C

98932 ¨

-16 °C

2088 ¨

10 °C

19691 ¨

-10 °C

58879 ¨

-12 °C

1811 ¨

20 °C

12474 ¨

0 °C

36129 ¨

-8 °C

1562 ¨

25 °C

10000 ¨

10 °C

22804 ¨

-4 °C

1342 ¨

30 °C

8080 ¨

20 °C

14773 ¨

0 °C

1149 ¨

40 °C

5372 ¨

25 °C

12000 ¨

4 °C

984 ¨

50 °C

3661 ¨

30 °C

9804 ¨

8 °C

842 ¨

60 °C

2535 ¨

40 °C

6652 ¨

12 °C

720 ¨

70 °C

1794 ¨

50 °C

4607 ¨

16 °C

616 ¨

80 °C

1290 ¨

60 °C

3252 ¨

20 °C

528 ¨

90 °C

941 ¨

70 °C

2337 ¨

24 °C

454 ¨

80 °C

1707 ¨

90 °C

1266 ¨

100 °C

952 ¨

110 °C

726 ¨

MCA 45 - 65 - 90 - 115 3. Technical description

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4 Installation

4.1 Regulations governing installation

WARNING

Installation of the appliance must be done by a qualified engineer in accordance with prevailing local and national regulations.

4.2 Package list

4.2.1. Standard delivery

The boiler is composed of 2 packages:

4 1 boiler package including:

- The boiler, fitted with a connection cable

- Mounting rail and mounting accessories for wall mounting

- Mounting template

- Installation and Service Manual

- User Guide

4 1 control panel package including:

- The DIEMATIC iSystem or IniControl control panel

- module assembly instructions

4.2.2.

Accessories

Various options are available depending on the configuration of the installation:

Boiler options

Description package

Hydraulic connection kit - MCA 45 HC137 Hydraulic connection kit - MCA 65 / 90 / 115 HC139 Right gas valve 3/4" HC158 3-speed heating pump - MCA 45 HC141 Electronic heating pump - MCA 45 HC142 3-speed heating pump - MCA 65 HC143 3-speed heating pump - MCA 90 HC145 Primary pump - MCA 45 / 65 / 90 HC147 3-way valve with motor 1" HC15 Low loss header HW PLUS 70 HC28 Low loss header HW 200 HC29

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Boiler options

Description package

Condensates neutralisation station HC33 Bracket for neutralisation station HC 33 HC34 2 kg refill of granulats to neutralisation station HC 33 HC35 Condensates neutralisation station (Boilers up to 120 kW) DU13 Condensates neutralisation station (Boilers from 120 to 350

kW)

DU14

Condensates neutralisation station (Boilers above 350 kW) DU15

Control system options

Description package

Optional PCB for 3-way valve Diematic iSystem AD249 System sensor AD250 Outside radio-controlled temperature sensor Diematic iSystem AD251 Boiler radio module AD252 Radio remote control Diematic iSystem AD253 Interactive remote control Diematic iSystem AD254 BUS connection cable (length 12 m) AD134 voice remote monitoring module AD152 Outlet sensor after 3-way valve AD199 A simplified remote control with room sensor FM52

Domestic hot water tank options

Description package

Heating / DHW inversion valve HC 134 Heating DHW reversal valve MCA 45 / 65 HC 135 Boiler/DHW tank connection kit BL / BP / BSC / DT EA 121 DHW sensor AD 212

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4.3 Choice of the location

4.3.1. Data plate

The data plate located on top of the boiler provides important information

on the appliance: serial number, model, gas category, etc.

4.3.2. Location of the appliance

4 Before mounting the boiler, decide on the ideal position for

mounting, bearing the Directives and the dimensions of the appliance in mind.

4 When choosing the position for mounting the boiler, bear in mind

the authorised position of the combustion gas discharge outlets and the air intake opening.

4 To ensure adequate accessibility to the appliance and facilitate

maintenance, leave enough space around the boiler.

WARNING

4 Fix the appliance to a solid wall capable of bearing

the weight of the appliance when full of water and fully equipped.

4 It is forbidden to store inflammable products and

materials in the boiler room or close to the boiler, even temporarily.

CAUTION

4 The boiler must be installed in a frost-free

environment.

4 A connection to the mains drainage system for the

discharge of condensate must be available close to the boiler.

T001982-A

T002599-B

500

min.1000

500

min. 400

350 min.

250

750

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4.3.3. Ventilation

(1)

Distance between the front of the appliance and the internal wall of the cupboard.

(2)

Distance to allow on either side of the appliance.

If the boiler is installed in a closed box, respect the minimum dimensions given in the diagram opposite. Also allow openings to obviate the following hazards:

4 Accumulation of gas 4 Heating of the box

Minimum cross section of the openings: S1 + S2 = 150 cm

T002600-B

1000 min. (1)

530

15 (2)

min.1500

min. 400

min. 250

750

350

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4.3.4. Main dimensions

Connection of the combustion gas exhaust pipe ; Ø 80 mm (≤ 45 kW) /

Ø 100 mm (≥ 65 kW)

Connection of the air intake pipe ; Ø 125 mm (≤ 45 kW) / Ø

150 mm (≥ 65 kW)

Siphon connection bush

Heating circuit return ; 1 ¼" Male thread

Gas / Gaz

Gas connection ; ¾" Male thread

{

Heating circuit flow ; 1 ¼" Male thread

T002614-C

191

500

750

500

100

130

191

365

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4.4 Positioning the boiler

The boiler is delivered with a mounting template.

A suspension clamp situated at the rear of the casing enables the boiler to be directly suspended on the mounting bracket.

Position the mounting template to the wall with adhesive tape.

CAUTION

4 Using a spirit level, check that the mounting axis is

perfectly horizontal.

4 During mounting, cover up the connection points for

the air supply and the combustion gas exhaust, to protect

the boiler and its connections from dust. Only remove this protection at the time when these connections are made.

2. Drill 2 holes with a Ø of 10 mm.

Insert the rawplugs with a Ø of 10 mm.

4. Attach the mounting bracket to the wall with the provided bolts with a Ø of 10 mm.

5. Hang the boiler on the mounting bracket.

4.5 Hydraulic connections

4.5.1. Flushing the system

Installation must be carried out in accordance with the prevailing regulations,

the codes of practice and the recommendations in these

instructions.

T001540-A

MCA 45 - 65 - 90 - 115 4. Installation

06/09/2010 - 300024755-001-A

Installing the boiler in new installations (installations less than 6 months old)

4 Clean the installation with a universal cleaner to eliminate debris

from the appliance (copper, flaxen thread, flux).

4 Thoroughly flush the installation until the water runs clear and

shows no impurities.

Installing the boiler in existing installations

4 Remove sludge from the installation. 4 Flush the installation. 4 Clean the installation with a universal cleaner to eliminate debris

from the appliance (copper, flaxen thread, flux).

4 Thoroughly flush the installation until the water runs clear and

shows no impurities.

4.5.2.

Connection of the heating circuit

1. Remove the anti-dust plug located on the heating outlet connection { under the boiler.

Connect the heating water outlet pipe to the heating flow connection.

3. Install a filling and drainage valve on the installation for filling and draining the boiler.

T002856-C

4. Installation MCA 45 - 65 - 90 - 115

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4. Remove the anti-dust button located on the heating return connection z under the boiler.

Connect the heating water return pipe to the heating return connection.

6. Fit the pump in the return pipe.

For the electrical connection of the pump, see chapter:

"Connecting the pump", page 32

To facilitate maintenance work, we recommend mounting a shut off valve on the heating flow and return pipes.

CAUTION

4 The heating pipe must be mounted in accordance

with prevailing provisions.

4 If installing shut off valves, position the filling/

drainage valve and the expansion vessel between the shut off valves and the boiler.

4.5.3. Connecting the expansion vessel

Install the expansion vessel on the heating return pipe z.

Refer to the table below to determine the opened expansion vessel required for the installation.

Conditions of validity of the table:

4 3-bar safety valve 4 Average water temperature:

70 °C Flow temperature: 80 °C Return temperature: 60 °C

4 The filling pressure in the system is lower than or equal to the initial

pressure in the opened expansion vessel

Initial pressure of the expansion vessel

Volume of the opened expansion vessel depending on the volume of the installation (in litres)

100 125 150 175 200 250 300 > 300

0.5 bar 4,8 6,0 7,2 8,4 9,6 12,0 14,4 Volume of the installation x 0,048 1 bar 8,0 10,0

12,0

(1)

14,0 16,0 20,0 24,0 Volume of the installation x 0,080

1.5 bar 13,3 16,6 20,0 23,3 26,6 33,3 39,9 Volume of the installation x 0,133

(1) Factory configuration

T002857-B

MCA 45 - 65 - 90 - 115 4. Installation

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4.5.4. Connecting

the condensate discharge pipe

1. Fit

the condensate drain hose and the syphon of the boiler: these

are supplied separately.

2. Mount a standard drainage pipe, Ø 32 mm or more, leading to the mains drainage system.

Insert into this the hose of the condensate drain â.

4. Mount a trap or a siphon in the discharge pipe.

CAUTION

Do not make a fixed connection owing to maintenance work on the siphon.

4 Do not plug the condensate discharge pipe. 4 Set the discharge pipe at a gradient of at least

mm per metre, maximum horizontal length 5 metres.

4 Do not drain condensation water into a roof gutter at

any time.

4 Connect the condensate discharge pipe in

accordance with prevailing standards.

4.6 Gas connection

WARNING

4 Close

the main gas valve before starting work on the

gas pipes.

4 Before mounting, check that the gas meter has

sufficient capacity. To do this, you should keep in mind the consumption of all appliances.

4 If the gas meter has too low a capacity, inform the

energy supply company.

The diameters of the pipes must be defined in accordance with the standards in force in your country.

1. Remove

the anti-dust plug from the GAS/GAZ gas inlet pipe under

the boiler.

2. Connect the gas inlet pipe.

3. Mount a gas isolation valve on this pipe, directly under the boiler.

4. Connect the gas pipe to the gas shut off valve.

CAUTION

4 Ensure that there is no dust in the gas pipe. 4 We

recommend installing a gas filter on the gas pipe

to prevent clogging of the gas valve unit.

4 Connect the gas pipe in accordance with prevailing

standards and regulations.

T002858-B

T002859-C

4. Installation MCA 45 - 65 - 90 - 115

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4.7 Flue gas system connections

4.7.1. Classification

6 3

4 2

Lmax = L1+L2

Lmax =

1+L2

Lmax

max

Lmax

C003034-A

Configuration C

Air/flue

gas connection by means of concentric pipes to a

horizontal terminal (so-called forced flue)

Configuration C

Air/flue

gas connection by means of concentric pipes to a

vertical terminal (roof outlet)

Configuration C

Air/flue gas connection by concentric pipes in the boiler room and single pipes in the chimney (combustive air in counter current in the chimney)

MCA 45 - 65 - 90 - 115 4. Installation

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Configuration C

Air/flue gas connection by concentric pipes in the boiler room and single "flex" in the chimney (combustive air in counter current in the chimney)

WARNING

4 Only

factory components are authorised for

connecting the boiler and the terminal.

4 The clear section must comply with the

standard.

4 The chimney must be swept before the

installation of the evacuation conduit.

Configuration C

Air and flue gas connection separated by means of a biflow

adapter and single pipes (combustive air taken from

outside)

Configuration B

Connection to a chimney using a connection kit (combustive air taken from the boiler room

)

4.7.2. Lengths of the air/flue gas pipes

Type of air/flue gas connection Diameter Maximum length

MCA 45 MCA 65 MCA 90 MCA 115

C13Concentric pipes connected to a horizontal terminal Alu or PPS 80/125 mm 16 m - - -

100/150 mm - 9 m 8 m 5,9 m

C33Concentric pipes connected to a vertical terminal aluminium 80/125 mm 14,5 m - - -

100/150 mm - 11,5 m 10 m 9,4 m

C93Concentric pipes in the boiler room

Single conduits in the chimney (combustive air in counter-current)

aluminium 80/125 mm

80 mm

15 m - - -

80/125 mm 100 mm

11,5 m - - -

110/150 mm 110 mm

- 11 m 12,5 m 10 m

Concentric pipes in the boiler room Single

flexible pipe in the chimney (combustive air in

counter-current)

PPS 80/125 mm

80 mm

12 m - - -

110/150 mm 110 mm

- 16,5 m 13,5 m 9,4 m

C53Bi-flow adapter and separate single air/flue gas ducts

(combustive air taken from outside)

aluminium 80/125 mm

2 x 80 mm

20,5 m - - -

100/150 mm 2 x 100 mm

- 23 m 17,5 m

11 m

(1)

5 m

(2)

B23Chimney (rigid or flexible duct in furnace flue,

combustive air taken from the premises)

PPS

80 mm

(3)

23,5 m - - -

110 mm

(3)

- 55 m 45 m 44 m

80 mm

(4)

21 m - - -

110 mm

(4)

- 29,5 m 24 m 17,5 m

(1) Air (2)

Flue gases (3) Rigid duct (4) Flexible duct

4. Installation MCA 45 - 65 - 90 - 115

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WARNING

Maximum length = lengths of the straight air/flue gas ducts + equivalent lengths of other components

For the list of flue gas system accessories and the equivalent lengths, refer to the current price list.

4.8

Installing the outside sensor

4.8.1. Choice of the location

It is important to select a place that allows the sensor to measure the outside conditions correctly and effectively.

Advised positions:

4 on one face of the area to be heated, on the north if possible 4 half way up the wall in the room to be heated 4 under the influence of meteorological variations 4 protected from direct sunlight 4 easy to access

Recommended position

Possible position

Inhabited height controlled by the sensor

Inhabited area controlled by the sensor

8800N001-C

MCA 45 - 65 - 90 - 115 4. Installation

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Positions to be avoided:

4 masked by a building element (balcony, roof, etc.) 4 close to a disruptive heat source (sun, chimney, ventilation grid,

etc.)

4.8.2. Installing the outside sensor

Mount the sensor using the screws and dowels provided.

CB wood screws diameter 4 + dowels

4.9 Electrical connections

4.9.1. Control unit

The boiler is fully pre-wired. The mains supply is made via the cable C

connected to the mains. All other external connections can be made to the connection connectors (low voltage). The main characteristics of the control unit are described in the table below.

Power supply voltage

230 V AC/50 Hz Rating of the main fuse F1(230 V AC) 6.3 AT Fuse rating F2(230 V AC) 2 AT Fan 230 V AC

CAUTION

Keep to the polarity shown on the terminals: phase (L), neutral (N) and earth *.

8800N002-C

8800N003-B

4. Installation MCA 45 - 65 - 90 - 115

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Routing of the 230 V cables

Power supply cable

Cable of housing for control PCBs

6,3 AT fuse

2 AT fuse

CAUTION

The following components of the appliance are at a voltage of 230 V:

4 Electrical connection of the heating pump

(Central

heating).

4 Electrical connection of the combined gas valve unit. 4 Electrical connection of the fan. 4 The majority of components in the control panel. 4 Most parts of the housing for control PCBs. 4 Ignition transformer. 4 Connection of the power supply cable.

4.9.2. Recommendations

WARNING

4 Only

qualified professionnals may carry out electrical

connections, always with the power off.

4 The boiler is entirely pre-wired. Do not modify the

connections inside the control panel.

4 Earth the appliance before making any electrical

connections.

Make the electrical connections of the appliance according to:

4 the instructions of the prevailing standards. 4 the instructions on the circuit diagrams provided with the

appliance.

4 the recommendations in the instructions.

CAUTION

4 Separate the sensor cables from the 230 V cables. 4 Outside the boiler: Use 2 pipes or cable guides at

least 10 cm apart.

T002039-A

MCA 45 - 65 - 90 - 115 4. Installation

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4.9.3. Fitting and connecting the control panel

1. Unscrew the 2 screws under the front panel by a quarter turn.

Remove the front panel.

3. Fit and connect the control panel.

To fit and connect the control panel, see the brochure

delivered in the control panel package.

4.9.4. Position of the PCBs

T001999-A

SCU PCU

TS + CC

LN N L

AUX

TS + BB

LN L N

Alim

230 V - 50 Hz

N N L

TdhwToutRLBLOT

On/off

S SYST

1 2

+ S ECS S EXTTA - S DEP C S DEP B

1 2 1 2 1 2 1 2 1

0-10V

- 4

S CAMB S AMBB S AMPA

3 2 1 2 1 2 1 2 1

PCU

SCU

PSU

C002912-A

90º

4. Installation MCA 45 - 65 - 90 - 115

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Do not connect anything to the terminal block.

Optional PCB (Package AD249)

Do not connect anything to the terminal block.

4.9.5. Accessing the connection terminal blocks

To access the connection terminal blocks, proceed as follows:

Unscrew the 2 screws under the front panel by a quarter turn.

2. Remove the front panel.

3. Tilt the control box forwards by opening the holding clips located at the sides.

4. Open the tooling box by opening the clip fastener on the front side.

5. Lift the control panel cover.

T001514-A

90º

T001991-A

1 1

T002040-A

MCA 45 - 65 - 90 - 115 4. Installation

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6. Unclip the PCB cover.

4.9.6.

Connecting the pump

The pump must be connected to standard control PCB (PCU).

To do

this, proceed as follows:

1. Connect the cable, that is delivered with the boiler, to the pump.

T002862-A

T002047-B

X81

4. Installation MCA 45 - 65 - 90 - 115

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2. Remove the grommet from the opening in the middle of the base of

the boiler. Pass the pump connection cable through the base of the boiler and seal the opening again by tightening the bayonet fitting to the cable.

3. Connect the pump connection cable to the cable in the instrument box that is connected with connector X8.

T002048-A

T002050-C

X81

MCA 45 - 65 - 90 - 115 4. Installation

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4. Connect the pump connection cable to the cable bundle by opening and closing the cable bundle bands.

4.9.7.

Connecting a direct heating circuit

C002903-B

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU PCU

Do not connect anything to the terminal block.

Connect the outside temperature sensor.

Heating connection pump.

T002049-B

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Connect a safety thermostat if the heating circuit is for underfloor heating.

4 Remove the bridge. 4 Connect the wires from the safety thermostat to the

connector.

Do not connect anything to the terminal block.

4.9.8. Connecting a direct heating circuit and a

domestic hot water tank

C002904-B

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU PCU

TS + C AUXC

Do not connect anything to the terminal block.

Domestic load pump connection

Connect the heating pump

Connect a safety thermostat if the heating circuit is for underfloor heating.

4 Remove the bridge. 4 Connect the wires from the safety thermostat to the

connector.

MCA 45 - 65 - 90 - 115 4. Installation

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Connect the DHW tank anode.

CAUTION

4 If the tank is fitted with a Titan Active

System® impressed current anode, connect the anode to the inlet (+ on the anode, - on the tank).

4 If the tank is not fitted with an impressed

current anode, put the simulation connector

in place (delivered with the DHW

sensor - package AD212).

Connect the outside temperature sensor.

Connect the DHW sensor (Package AD212).

Connect the domestic hot water looping pump (Optional).

Do not connect anything to the terminal block.

DIEMATIC iSystem - Settings to be made for this type of installation

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

"Displaying the parameters

in extended mode", page 65

If a domestic hot water looping pump is connected to MAUX on the terminal block:

O.PUMP AUX

(1)

"Installer" level

#SYSTEM menu

DHW LOOP

¼ "Setting the parameters specific to the installation", page 66

If safety thermostat is connected to

BL on the connection terminal block: IN.BL

"Installer" level

#PRIMARY INSTAL.P

TOTAL STOP

¼ ""Professional" settings", page 75

If a DHW tank (type BS60) is connected

(2)

"Installer" level

#SYSTEM menu

¼ "Setting the parameters specific to the installation", page 66

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

IniControl - Settings to be made for this type of installation

No further adjustments are necessary

4.9.9. Connecting

two circuits and a domestic hot

water tank after the mixing tank

This configuration is only possible with the DIEMATIC iSystem control panel.

4. Installation MCA 45 - 65 - 90 - 115

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C002905-B

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

TS + C AUXC

SCU PCU

Do not connect anything to the terminal block.

Connect a safety thermostat if the heating circuit is for underfloor heating.

4 Remove the bridge. 4 Connect the wires from the safety thermostat to the

connector.

Connecting an additional circuit to the AD249 option.

Connect the heating pump (circuit A).

If underfloor heating is being used, put a safety thermostat in place after the heating pump.

The safety thermostat will shut down the heating pump in the event of overheating.

MCA 45 - 65 - 90 - 115 4. Installation

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Connect the DHW tank anode.

CAUTION

4 If the tank is fitted with a Titan Active

System® impressed current anode, connect the anode to the inlet (+ on the anode, - on the tank).

4 If the tank is not fitted with an impressed

current anode, put the simulation connector

in place (delivered with the DHW

sensor - package AD212).

Connect the outside temperature sensor.

Connect the heating pump (circuit B).

Connect the 3-way valve (circuit B).

Domestic load pump connection.

Connect the DHW sensor (Package AD212).

Connect the domestic hot water looping pump to the MAUX outlet on the AD249 option.

Do not connect anything to the terminal block.

4.9.10. Hot water storage tank connection

This configuration is only possible with the DIEMATIC iSystem control panel.

QUADRO DU storage tank

In this installation example, the storage tank (type

QUADRO DU) incorporates a domestic hot water zone. The boiler starts up systematically to maintain the domestic hot water zone in the storage tank or to maintain the independent tank at temperature.

If the storage tank does not have a DHW zone, use an independent domestic hot water tank.

4. Installation MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

C002906-B

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU PCU

X81

Do not connect anything to the terminal block.

Connect the load pump from the buffer tank.

Connect the sensor from the storage tank (Package AD250).

Buffer tank.

Connect the DHW tank anode.

If the tank is not fitted with an impressed current anode, put the simulation connector in place (delivered with the DHW sensor - package AD212).

Connect the DHW sensor (Package AD212).

Connect the heating pump (Circuit A).

Solar sensor probe.

Connect the solar station to the solar collectors.

Do not connect anything to the terminal block.

MCA 45 - 65 - 90 - 115 4. Installation

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DIEMATIC iSystem - Settings to be made for this type of installation

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

"Displaying the parameters in extended mode", page

I.SYST

(1)

"Installer" level

#SYSTEM menu

STORAGE TANK

¼ "Setting the parameters specific to the installation", page 66

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

The DHW part is maintained at the DHW set point by the boiler. The heating zone is maintained at the set temperature calculated

according to the outside temperature. The zone

is reheated when the heating buffer temperature sensor E falls -6°C below the calculated set temperature. Reheating in the heating zone stops when the heating buffer temperature rises above the calculated set temperature.

4. Installation MCA 45 - 65 - 90 - 115

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PS storage tank and DHW tank connected to the boiler

C002907-B

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU PCU

X81

Do not connect anything to the terminal block.

D.H.W. load pump

Buffer tank load pump.

R Connect a domestic hot water tank if the storage tank O

is only used for heating

Connect the DHW sensor (Package AD212).

Connect the DHW tank anode.

If the tank is not fitted with an impressed current anode, put the simulation connector in place (delivered with the DHW sensor - package AD212).

Connect the heating pump (Circuit A).

MCA 45 - 65 - 90 - 115 4. Installation

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Solar sensor probe.

Buffer tank.

Do not connect anything to the terminal block.

Connect the solar station to the solar collectors.

Solar sensor probe

DIEMATIC iSystem - Settings to be made for this type of installation

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

"Displaying the parameters in extended mode", page

I.SYST

(1)

"Installer" level

#SYSTEM menu

STORAGE TANK

¼ "Setting the parameters specific to the installation", page 66

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

The DHW part is maintained at the DHW set point by the boiler. The heating zone is maintained at the set temperature calculated

according to the outside temperature. The zone is reheated when the heating buffer temperature sensor falls -6°C below the calculated set temperature. Reheating in the heating zone stops when the heating buffer temperature rises above the calculated set temperature.

4. Installation MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

storage tank and DHW tank connected to the storage

tank

The boiler only starts up production of domestic hot water if the storage tank is not hot enough to guarantee tank loading.

C002908-A

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU PCU

Do not connect anything to the terminal block.

Connect the heating pump (Circuit A).

Buffer tank load pump

Connect the DHW tank anode.

If the tank is not fitted with an impressed current anode, put the simulation connector in place (delivered with the DHW sensor - package AD212).

Buffer tank.

Solar sensor probe.

Connect the solar station to the solar collectors.

MCA 45 - 65 - 90 - 115 4. Installation

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Domestic hot water boiler. Connect the DHW sensor.

Do not connect anything to the terminal block.

DIEMATIC iSystem - Settings to be made for this type of installation

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

"Displaying the parameters in extended mode", page

I.SYST

(1)

"Installer" level

#SYSTEM menu

ST.TANK+DHW

¼ "Setting the parameters specific to the installation", page 66

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

The DHW tank is loaded from the storage tank. If, during DHW loading, the temperature of the storage tank falls below the primary DHW set point (parameter PRIM.TEMP.DHW), the boiler maintains the latter at temperature to guarantee the loading of the DHW tank The heating zone is maintained at the set temperature calculated

4.9.11. Pool connection

This configuration is only possible with the DIEMATIC iSystem control panel.

C002298-i

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU PCU

Connect the secondary swimming pool pump.

4. Installation MCA 45 - 65 - 90 - 115

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Connect the swimming pool sensor.

Plate heat exchanger.

Pool heating cut-off control

When the parameter I.TEL: is on 0/1 B, the swimming pool is no longer heated when the contact is open (factory setting), only the antifreeze continues to be active. The

contact direction can still be adjusted by the

parameter CT.TEL.

Connect the primary swimming pool pump.

Do not connect anything to the terminal block.

DIEMATIC iSystem - Settings to be made for this type of installation

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page

CIRC. B:

"Installer" level

#SYSTEM menu

SWIM.P.

¼ "Setting the parameters specific to the installation", page

If I.TEL: is used

I.TEL:

"Installer" level

#SYSTEM menu

0/1 B

MAX. CIRC. B

"Installer" level #SECONDARY LIMITS menu

Set the value of MAX.CIRC.B to the

temperature corresponding to

the needs of the exchanger

¼ ""Professional" settings", page 75

Controlling the pool circuit

The control system can be used to manage a swimming pool circuit in both cases:

Case 1: The

control system regulates the primary circuit (boiler/

exchanger) and the secondary circuit (exchanger/pool).

4 Connect the primary circuit pump (boiler/exchanger) to the MB

outlet on the connection terminal block. The temperature MAX.CIRC.B is then guaranteed during comfort periods on programme B in summer and winter alike.

4 Connect the swimming pool sensor (package AD212) to the S

DEP B inlet on the connection terminal block.

4 Set the set point of the pool sensor using key C in the range 5 -

39°C.

Case 2: The pool has already a regulation system that is to be kept. The control system only regulates the primary circuit (boiler/exchanger).

4 Connect the primary circuit pump (boiler/exchanger) to the MB

outlet on the connection terminal block. The temperature MAX.CIRC.B is then guaranteed during comfort periods on programme B in summer and winter alike.

MCA 45 - 65 - 90 - 115 4. Installation

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The swimming pool can also be connected to circuit C by adding the AD249 option:

4 Make the connection to the terminal blocks marked

4 Set the parameters for circuit C.

Hourly programming of the secondary circuit pump

The

secondary pump operates during programme B comfort periods

in summer and winter alike.

Stopping

To prepare your pool for winter, consult your pool specialist.

4.9.12. Connecting a mixed tank

This configuration is only possible with the DIEMATIC iSystem control panel.

Do not connect anything to the terminal block.

C002909-A

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

TS + C AUXC

SCU PCU

4. Installation MCA 45 - 65 - 90 - 115

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Option of connecting the electric tank (with AD249 option) or to E

Outlet circuit A

- Option of connecting the electric tank (or

to Z)

Power control relay to the electrical resistor

Connect the DHW tank anode.

If the tank is not fitted with an impressed current anode, put the simulation connector in place (delivered with the DHW sensor - package AD212).

Connect the DHW sensor (Package AD212).

Connect the outside temperature sensor

D.H.W. load pump.

Do not connect anything to the terminal block.

DIEMATIC iSystem - Settings to be made for this type of installation

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page

If the electric tank is connected to MA:

CIRC. A:

(1)

"Installer" level

#SYSTEM menu

DHW ELEC

"Setting the parameters specific

to the installation", page 66

If the electric tank is connected to

MAUX: S.AUX:

(1)

"Installer" level

#SYSTEM menu

DHW ELEC

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

4.9.13. Connecting the options

For example: TELCOM remote vocal monitoring module, remote controls for circuits A and B, second DHW tank

MCA 45 - 65 - 90 - 115 4. Installation

06/09/2010 - 300024755-001-A

C002916-A

PRG

TELCOM 2

ALP

AL2

AL1

SET

#09

4321

On/off

OT BL RL Tout Tdhw

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

TS + C AUXC

SCU PCU

MODE

0 2 4 6 8 10 12 14 16 18 22 2420

MODE

0 2 4 6 8 10 12 14 16 18 22 2420

Do not connect anything to the terminal block.

Connect the load pump to the second tank (Only for control panel DIEMATIC iSystem).

Second domestic hot water tank (Only for control panel DIEMATIC iSystem).

Connect the DHW sensor from the second tank (

Only for

control panel DIEMATIC iSystem).

Connect the TELCOM remote vocal monitoring module (depending on its availability in your country

Connecting the BUS cascade, VM

Connect the remote control (Package AD254/FM52).

Do not connect anything to the terminal block.

Diematic iSystem - Settings to be made to connect a second tank

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 65

If second tank connected:

S.AUX:

(1)

"Installer" level

#SYSTEM menu

DHW

¼ "Setting the parameters specific to the installation", page

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

4. Installation MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

4.9.14. Connection in cascade

DHW tank after the mixing tank

Master boiler (DIEMATIC iSystem)

Secondary boiler (DIEMATIC iSystem or IniControl)

Cable BUS

Boiler pump

Low loss header

Cascade outlet sensor Connect the sensor to the terminal block S SYST on the master boiler.

D.H.W. load pump

Connect the DHW sensor (Package AD212)

C002910-B

1 2

X81

MCA 45 - 65 - 90 - 115 4. Installation

06/09/2010 - 300024755-001-A

DIEMATIC iSystem - Settings to be made for this type of installation: Master boiler

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 65

O.DHW:

(1)

"Installer" level

#SYSTEM menu

PUMP

¼ "Setting the parameters specific to the installation", page

CASCADE:

(1)

"Installer" level

#NETWORK menu

¼ "Configuring the network", page

MASTER CONTROLLER

(1)

"Installer" level

#SYSTEM menu

SYSTEM NETWORK

(1)

"Installer" level

#SYSTEM menu

ADD SLAVE

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

DIEMATIC iSystem - Settings to be made for this type of installation: Follower boilers

Parameters Access Settings to be made See

INSTALLATION

"Installer" level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 65

CASCADE:

(1)

"Installer" level

#NETWORK menu

¼ "Configuring the network", page 81

MASTER CONTROLLER

(1)

"Installer" level

#SYSTEM menu

OFF

SLAVE NUMBER

(1)

"Installer" level #SYSTEM menu

2, 3, ...

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

IniControl - Settings to be made for this type of installation: Follower boilers

Parameters Access Settings to be made See

CASCADE: FBE

"Installer" level 1

¼ "Description of the parameters", page 100

SLAVE NUMBER FBF

"Installer" level 2, 3, ...

4. Installation MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

4.10 Electrical diagram

T002860-C

X12

X10

X11

2 31

SCU-C

1 32

GN/ YW

SCU-C

X11

1 2 3 4 5 6

DIS

X12

1 2 7 8 9 103 4 5 6

230V, 50Hz

L N

1 23

GN/YW

4 3 2 15

GN/ YW

3 1

4 2

X51

1 2 3

X41

GN/ YW

3 1 2

FAN

2 3 4 1

GN/ YW

1 23

X51

1 2 3

GN/ YW

153

X21/X61

1 2 3

PUMP A

GN/ YW

2 1 3

X81

3 1 2

X41

HLS

2 3 4 5

X91

1 2 4 5

FAN

X117

PWM

PUMP

12 13

1 2

X116

FTSRTS

2 2

X115

X114

10 11

3 1

X112

2 3

X10

4 5 7 6

X111

1 2 3 4

PSU

Power supply

Ignition power relay

FTS

Flow sensor

SCU

Extended control PCB

Combined venturi and gas valve unit

Pressure sensor

On/Off switch

PUMP A

Shunt pump

PSU

Parameter storage for PCBs PSU and SU

FAN

Fan

HLS

Safety thermostat

PWM PUMP

Modulation signal from the boiler pump

Ignition transformer

RTS

Return sensor

DIS

Display

MCA 45 - 65 - 90 - 115 4. Installation

06/09/2010 - 300024755-001-A

4.11 Filling the system

4.11.1. Water treatment

In most cases, the boiler and the central heating installation can be filled

with normal tap water and no water treatment will be necessary.

WARNING

Do not add chemical products to the central heating water without consulting De Dietrich Thermique.

For example: antifreeze, water softeners, products to increase or reduce the pH value, chemical additives and/or inhibitors. These may cause faults in the boiler and damage the heat exchanger.

4 Rinse the central heating installation with at least 3x

the volume of the central heating installation.

Flush the DHW pipes with at least 20 the volume of the pipes.

4 Use only untreated tap water to fill or top up the level

in the central heating installation.

For an optimum functioning of the boiler, the water of the installation must comply with following characteristics:

Total installed heat output (kW)

≤ 70

70 - 200 200 - 550 > 550

Degree of acidity (water non-treated)

pH 7 - 9 7 - 9 7 - 9 7 - 9

Degree of acidity (water treated)

pH 7 - 8,5 7 - 8,5 7 - 8,5 7 - 8,5

Conductivity at 25°C µS/cm ≤ 800 ≤ 800 ≤ 800 ≤ 800 Chlorides mg/l ≤ 150 ≤ 150 ≤ 150 ≤ 150 Other components mg/l < 1 < 1 < 1 < 1

Total water hardness

(1)

°f 1 - 35 1 - 20 1 - 15 1 - 5 °dH 0,5 - 20,0 0,5 - 11,2 0,5 - 8,4 0,5 - 2,8 mmol/l 0,1 - 3,5 0,1 - 2,0 0,1 - 1,5 0,1 - 0,5

(1) For

installations that are heated at constant high temperatures with a total installed heat output; up to 200 kW a maximum total water hardness

of 8,4 °dH (1,5 mmol/l, 15 °f) applies and for above 200 kW a maximum total water hardness of 2,8 °dH (0,5 mmol/l, 5 °f) applies

If a water treatment is necessary, De Dietrich Thermique recommends the following manufacturers:

4 Cillit 4 Climalife 4 Fernox 4 Permo 4 Sentinel

4. Installation MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

4.11.2. Filling the siphon

1. Remove the siphon.

Fill the siphon with water. This must be completely filled.

3. Re-assemble the siphon.

CAUTION

Fill the water siphon before starting the boiler to avoid combustion products escaping from the boiler.

4.11.3. Filling the system

CAUTION

Before filling, open the valves on every radiator in the installation.

In order to be able to read off the water pressure from the boiler display, the boiler must be switched on.

1. Fill the system with clean tap water (advised water pressure is between 1,5 and 2

bar).

2. Check the tightness of the water connections.

T002037-B

T000181-B

T001507-B

MCA 45 - 65 - 90 - 115 4. Installation

06/09/2010 - 300024755-001-A

5 Start-up - DIEMATIC iSystem

5.1 Control panel

5.1.1. Description of the keys

Temperature setting key (heating, DHW, swimming pool)

Operating mode selection key

DHW override key

Key to access the parameters reserved for the installer

Keys on which the function varies as and when selections are made

Rotary setting button:

4 Turn

the rotary button to scroll through the menus or

modify a value

4 Press the rotary button to access the menu selected

or confirm a value modification

A000866-A

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

(

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

5.1.2. Description of the display

Key functions

Access to the various menus

(

Used to scroll through the menus

Used to scroll through the parameters

The symbol is displayed when help is available

Used to display the curve of the parameter selected

STD

Reset of the time programmes

Selection of comfort mode or selection of the days to be programmed

Selection of reduced mode or deselection of the days to be programmed

Back to the previous level

ESC

Back to the previous level without saving the modifications made

Manual reset

Flame output level

C002705-A

The whole symbol flashes: The burner starts up but the flame is not yet present

C002704-A

Part of the symbol flashes: Output is increasing

C002703-A

Steady symbol: The required output has been reached

C002702-A

Part of the symbol flashes: Output is dropping

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

C002696-A

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002701-B

AUTO

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

Operating modes

Summer mode: The heating is off. Domestic hot water continues to be produced

WINTER mode: Heating

and domestic hot water working

AUTO

Operation in automatic mode according to the timer programme

Comfort mode: The symbol is displayed when a DAY override (comfort) is activated

4 Flashing symbol: Temporary override 4 Steady symbol: Permanent override

Reduced mode: The symbol is displayed when a NIGHT override (reduced) is activated

4 Flashing symbol: Temporary override 4 Steady symbol: Permanent override

Holiday mode: The symbol is displayed when a HOLIDAY override (antifreeze) is activated

4 Flashing symbol: Holiday mode programmed 4 Steady symbol: Holiday mode active

Manual mode

System pressure

bar

Pressure indicator: The symbol is displayed when a water pressure sensor is connected

4 Flashing

symbol: The quantity of water is insufficient

4 Steady symbol: The quantity of water is sufficient

Water pressure level

4 R : 0,9 to 1,1 bar 4 E : 1,2 to 1,5 bar 4 Z : 1,6 to 1,9 bar 4 A : 2,0 to 2,3 bar 4 l : > 2,4 bar

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002697-B

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002698-B

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002708-A

AUTO

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

Domestic Hot Water override

A bar is displayed when a DHW override is activated:

4 Flashing bar: Temporary override 4 Steady bar: Permanent override

Other information

The symbol is displayed when domestic hot water production is running

Valve indicator: The symbol is displayed when a 3-way valve is connected

4 x : 3-way valve open 4 c : 3-way valve closed

The symbol is displayed when the pump is operating Name of the circuit for which the parameters are displayed

5.1.3. Access to the various browsing levels

"User" level

The information and settings in the "User" level can be accessed by everyone.

Press the > key.

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002707-A

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002699-B

AUTO

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

C002219-D-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

"Installer" level

The information and settings in the "Installer" level can be accessed by experienced people.

Press key - for around 5 seconds.

Before the "Installer" level is displayed, the EMISSION MEASUREMENTS

menu will be displayed. Hold down the

key until #LANGUAGE is displayed.

"After Sales" level

The information and settings in the "After Sales" level can be accessed by initiates.

Press key - for around 10 seconds.

Before the "After Sales" level is displayed, the "Installer" level will be displayed.

Hold key - down until

#PARAMETERS is displayed.

5.1.4. Browsing in the menus

1. To select the desired menu, turn the rotary button.

To access the menu, press the rotary button. To go back to the previous display, press the key j.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: _ _ _ _

C002272-C-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

#MEASURES

#CHOICE TIME PROG.

#TIME PROGRAM #SETTING #TIME .DAY

C002220-A-04

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

3. To select the desired parameter, turn the rotary button.

To modify the parameter, press the rotary button. To go back to the previous display, press the key j.

5. To modify the parameter, turn the rotary button.

6. To confirm, press the rotary button.

To cancel, press key h.

7. To go back to the main display, press key j2 times.

It is possible to use the (

and ' keys instead of the rotary

button.

5.2 Check points before commissioning

5.2.1. Preparing the boiler for commissioning

WARNING

Do not put the boiler into operation if the supplied gas is not in accordance with the approved gas types.

Preparatory procedure for boiler commissioning:

4 Check

that the gas type supplied matches the data shown on the

boiler's data plate.

4 Check the gas circuit. 4 Check the hydraulic circuit. 4 Check the water pressure in the heating system. 4 Check the electrical connections to the thermostat and the other

external controls.

4 Check the other connections. 4 Test the boiler at full load. Check the setting of the gas/air ratio

and, if necessary, correct it.

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CURRENT PROG.B

CURRENT PROG.C

C002221-B-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CURRENT PROG.C

"Choice of the timeprogram applied C"

C002222-B-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

LUNDI 11:45

C002224-D-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

4 Test the boiler at part load. Check the setting of the gas/air ratio

and, if necessary, correct it.

4 Finalizing work.

5.2.2.

Gas circuit

WARNING

Ensure that the boiler is switched off.

1. Open the main gas supply.

2. Unscrew

the two screws located under the front panel by a quarter

turn and remove the panel.

3. Tilt the control box forwards by opening the holding clips located at the sides.

4. Check the gas supply pressure at the measurement point C on the gas valve unit.

WARNING

To ascertain the gas types permitted, see chapter:

"Equipment categories", page 8

5. Check the tightness of the gas connections made after the gas valve unit in the boiler.

Check the leak tightness of the gas inlet, including the gas valves. The test pressure must not exceed 60 mbar.

7. Purge the gas supply pipe within the boiler by unscrewing the measurement point on the gas block. Tighten the measurement point when the pipe has been sufficiently purged.

8. Check the tightness of the gas connections in the boiler.

5.2.3. Hydraulic circuit

4 Check the syphon — this must be completely filled with clean

water.

4 Check that there are no leaks on the hydraulic connections.

5.2.4.

Electrical connections

4 Check the electrical connections.

5.3

Putting the appliance into operation

1. Tilt the control box upwards again and fasten it using the clips located at the sides.

Open the main gas supply.

3. Open the gas valve on the boiler.

T003243-A

C C

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

4. Turn on the boiler using the on/off switch.

5. The

first time the boiler is powered up, the #LANGUAGE menu is displayed. Select the desired language by turning the rotary button.

6. To confirm, press the rotary button.

The boiler will begin an automatic venting-programme (which lasts approx. 3 minutes) and will do this every time the power supply is isolated.

Error during the start-up procedure:

4 No information is shown on the display:

- Check the mains supply voltage

- Check the fuses

- Check the connection of the power cable to the connector X1

on the PCU PCB

4 If there is a problem, the error is displayed on the screen.

¼ See chapter: "Messages (Code type Bxx or Mxx)", page 118

If a DHW sensor is connected and the anti-legionella function is activated, the boiler starts to heat the water in the DHW tank as soon as the vent programme has been completed. The heating time depends on the size of the DHW installation.

C002366-B

Français - Deutsch - English Italiano - Espanol - Nederlands

- Pycck - Polski - Türk -

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

LANGUE FRANCAIS

C002286-C

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

5.4 Gas settings

5.4.1. Adapting to another gas type

WARNING

Only a qualified engineer may carry out the following operations.

The boiler is preset in the factory to operate on natural gas H (G20).

For operation on another group of gases, carry out the following operations.

In case of functioning on propane:

Boiler type For conversion to propane

MCA 45 Rotate the adjusting screw A on the venturi 4¾ turns in a

clockwise direction

MCA 65 Rotate the adjusting screw A on the venturi 6½ turns in a

clockwise direction MCA 90 Fit the gas restrictor in the gas block MCA 115 First turn the setting screw A

clockwise until it is closed, then: Rotate the adjusting screw A on the gas block 3,5 - 4 turns in an anticlockwise direction

2. Regulate the fan speed as indicated in the table (if required):

See chapter: ""Professional" settings", page 75

3. Set

the air/gas ratio. For more detailed information on this subject,

see the following paragraphs:

"Setting the air/gas ratio (Full load)", page 62

"Setting the air/gas ratio (Part load)", page 64

5.4.2. Setting the air/gas ratio (Full load)

1. Unscrew the plug of the flue gas measurement point.

Connect the flue gas analyser.

WARNING

Ensure that the opening around the sensor is completely sealed when taking measurements.

T003241-A

A A

T001581-A

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

3. In the main display, press key -. The menu EMISSION MEASUREMENTS is displayed on the screen.

If an automatic vent cycle is running, it is not possible to perform these operations.

4. The characteristics of the generator are displayed.

5. Turn

the rotary button until PMAX is displayed. The full load is set.

6. Measure the percentage of O2 or CO2 in the flue gases.

7. Compare the values measured with the checking values given in the table (Front panel removed):

8. If necessary, adjust the gas/air ratio using the adjusting screw (A).

O2/CO2 control and setting values for gas

H (G20) at full load

Boiler type Setting value Checking value

O 2 (%) CO 2 (%) O 2 (%) CO 2 (%)

MCA 45 4,8 ± 0,2 9,0 ± 0,1 4,8 ± 0,5 9,0 ± 0,2 MCA 65 4,8 ± 0,2 9,0 ± 0,1 4,8 ± 0,5 9,0 ± 0,2 MCA 90 3,9 ± 0,2 9,5 ± 0,1 3,9 ± 0,5 9,5 ± 0,2 MCA 115 4,7 ± 0,2 9,1 ± 0,1 4,7 ± 0,5 9,1 ± 0,2

O2/ CO2 control and setting values for propane (

G31) at full load

Boiler type Setting value Checking value

O 2 (%) CO 2 (%) O 2 (%) CO 2 (%)

MCA 45 4,6 ± 0,2 10,7 ± 0,1 4,6 ± 0,5 10,7 ± 0,2 MCA 65 4,6 ± 0,2 10,7 ± 0,1 4,6 ± 0,5 10,7 ± 0,2 MCA 90 4,6 ± 0,2 10,7 ± 0,1 4,6 ± 0,5 10,7 ± 0,2 MCA 115 4,9 ± 0,2 10,5 ± 0,1 4,9 ± 0,5 10,5 ± 0,2

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002271-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

GENE :

BOILER TEMP.

CURRENT

FAILURE

PMAX

68°C

10µA

5600 tr/min

C002347-D-04

OFF => PMAX

T003241-A

A A

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

5.4.3. Setting the air/gas ratio (Part load)

1. Unscrew the plug of the flue gas measurement point.

Connect the flue gas analyser.

WARNING

Ensure that the opening around the sensor is completely sealed when taking measurements.

3. In the main display, press key -. The menu EMISSION MEASUREMENTS is displayed on the screen.

If an automatic vent cycle is running, it is not possible to perform these operations.

4. The characteristics of the generator are displayed.

5. Turn

the rotary button until PMIN is displayed. The part load is set.

6. Measure the percentage of O2 or CO2 in the flue gases.

7. Compare the values measured with the checking values given in the table (Front panel removed):

T001581-A

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002271-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

GENE :

BOILER TEMP.

CURRENT

FAILURE

PMIN

68°C

10µA

1850 tr/min

C002348-D-04

OFF => PMIN

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

8. If necessary, adjust the gas/air ratio using the adjusting screw (B).

O2/CO2 control and setting values for gas H (G20) at low speed

Boiler type Setting value Checking value

O 2 (%) CO 2 (%) O 2 (%) CO 2 (%)

MCA 45 4,8 ± 0,2 9,0 ± 0,1 4,8 ± 0,5 9,0 ± 0,2 MCA 65 4,8 ± 0,2 9,0 ± 0,1 4,8 ± 0,5 9,0 ± 0,2 MCA 90 3,9 ± 0,2 9,5 ± 0,1 3,9 ± 0,5 9,5 ± 0,2 MCA 115 4,3 ± 0,2 9,3 ± 0,1 4,3 ± 0,5 9,3 ± 0,2

O2/CO2 control and setting values for propane (

G31) at low speed

Boiler type Setting value Checking value

O 2 (%) CO 2 (%) O 2 (%) CO 2 (%)

5.5 Checks and adjustments after commissioning

5.5.1. Displaying the parameters in extended

mode

The display mode on the control panel is set as standard in such a way as only to show the "conventional" parameters.

It is possible to

switch to "extended" mode by proceeding as follows:

1. Access the "installer" level: Press key - for around 5 seconds.

2. Select the menu #SYSTEM.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

3. Set the parameter INSTALLATION to EXTENDED.

"Installer" level - #SYSTEM menu

Parameter Adjustment range Description Factory setting Customer setting

INSTALLATION CLASSIC

Displays the parameters of a conventional installation

CLASSIC

EXTENDED

Displays all parameters

Regardless of what is done to the keys, the regulator switches back to CLASSIC mode after 30 minutes.

T003242-A

B B

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

5.5.2. Setting the parameters specific to the

installation

1. Access the "installer" level: Press key - for around 5 seconds.

Select the menu #SYSTEM.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

3. Set the following parameters according to the connections made to the PCBs:

"Installer" level - #SYSTEM menu

Parameter Adjustment range Description Factory setting Customer

setting

CIRC. A:

(1)(2)

DIRECT

Use as a direct heating circuit

DIRECT

PROGRAM.

Use as an independent programmable outlet

H.TEMP

Enables operation of circuit A in summer despite manual or automatic summer shutdown

DHW

Connection of a second domestic hot water tank

DHW ELEC

Used to control the electrical resistor according to the timer programme on circuit A in summer mode

DISAB.

No data for circuit A is displayed

CIRC. B:

(1)

3WV

Connecting a circuit with 3-way valve (For example: Underfloor heating

)

3WV

SWIM.P.

Using the circuit for pool management

DIRECT

Use of circuit in direct heating circuit

CIRC. C:

(1)

3WV

Connecting a circuit with 3-way valve (For example: Underfloor heating

)

3WV

SWIM.P.

Using the circuit for pool management

DIRECT

Use of circuit in direct heating circuit

O.PUMP A

(1)

(2)

CH.PUMP A

Heating pump circuit A:

The PUMP A outlet is used to

control the pump on circuit A

CH.PUMP A

CIRC.AUX

Used to resume the functions of the S.AUX

parameter without adding the "PCB + sensor" option (Package AD249)

DHW LOOP

Used to control the domestic hot water looping pump according to the DHW timer programme and force its operation during an override

PRIMARY PUMP

The outlet PUMP A is active if a heating demand is present on the secondary pump

ORDER BURNER

The outlet PUMP A is active when a burner demand is present

FAILURE

The outlet PUMP A is active if an error is detected

O.DHW:

(1)

PUMP

Using a tank load pump on the DHW PUMP outlet

PUMP

Use of a reversal valve for DHW production (Not used)

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

If the pump incorporated in the boiler is used for circuit A (parameter CIRC.A set to DIRECT), the O.PUMP A outlet is free

(3) This parameter is displayed only if the O.PUMP A parameter is set to CIRC.AUX or if the 3-way valve PCB option is used

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

"Installer" level - #SYSTEM menu

Parameter Adjustment range Description Factory setting Customer

setting

BS60

(1)

Small capacity tank

OFF

Large capacity tank

S.AUX:

(1)(3)

DHW LOOP

Use as a domestic loop pump

DHW LOOP

PROGRAM.

Use as an independent programmable outlet

PRIMARY PUMP

The outlet AUX PUMP is active if a heating demand is present on the secondary pump

ORDER BURNER

The outlet AUX PUMP is active when a burner demand is present

DHW

Use of primary circuit of second DHW tank

FAILURE

The outlet AUX PUMP

is active if an error is detected

DHW ELEC

Used to control the electrical resistor according to the timer programme on circuit AUX

in summer mode

I.SYST

(1)

SYSTEM

The inlet sensor is used to connect the common flow sensor of a cascade system

SYSTEM

STORAGE TANK

Hot water storage tank affected to heating only

DHW STRAT

Using the DHW tank with 2 sensors (top and bottom)

ST.TANK+DHW

Hot water storage tank affected to heating and domestic hot water

O. TEL:

(1)

FAILURE

The telephone outlet is closed in the event of failure

FAILURE

REVISION

The telephone outlet is closed in the event of revision display

DEF+REV

The telephone outlet is closed in the event of failure or revision display

CT.TEL

(1)

See table below.

OPEN

I.TEL:

(1)

ANTIFR

Start anti-freeze in boiler command

ANTIFR

0/1 A

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit

0/1 B

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit

0/1 C

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit

0/1 DHW

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit

ECS

0/1 AUX

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit AUX (S.AUX if option *1 is present or outlet O.PUMP A is configured as CIRC.AUX) When I.TEL: is not active, the auxiliary circuit (AUX) follows the maximum boiler temperature (parameter BOILER MAX).

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

If the pump incorporated in the boiler is used for circuit A (parameter CIRC.A set to DIRECT), the O.PUMP A outlet is free

(3) This parameter is displayed only if the O.PUMP A parameter is set to CIRC.AUX or if the 3-way valve PCB option is used

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

Influence of the parameter setting CT.TEL on the I.TEL contact

CT.TEL I.TEL: I.TEL contact closed I.TEL contact open

CLOSE ANTIFR

The antifreeze mode is active on all boiler circuits. The mode selected on the boiler is active.

0/1 A

The mode selected on the circuit is active. The antifreeze mode is active on the circuit

concerned.

0/1 B

The mode selected on the circuit is active. The antifreeze mode is active on the circuit

concerned.

0/1 C

The mode selected on the circuit is active. The antifreeze mode is active on the circuit

concerned.

0/1 DHW

The mode selected on the DHW circuit is active. The antifreeze mode is active for the DHW circuit.

0/1 AUX

4 The MAUX outlet on the connection terminal

block is active.

4 The boiler operates at a set point temperature

equal to BOILER MAX.

4 The MAUX outlet on the connection terminal

block is not active.

4 The

boiler operates with a set point temperature

as a function of the outside temperature.

OPEN ANTIFR

The mode selected on the boiler is active. The antifreeze mode is active on all boiler circuits.

0/1 A

The antifreeze mode is active on the circuit concerned.

The mode selected on the circuit is active.

0/1 B

The antifreeze mode is active on the circuit concerned.

The mode selected on the circuit is active.

0/1 C

The antifreeze mode is active on the circuit concerned.

The mode selected on the circuit is active.

0/1 DHW

The antifreeze mode is active for the DHW circuit. The mode selected on the DHW circuit is active.

0/1 AUX

4 The MAUX outlet on the connection terminal

block is not active.

4 The boiler operates with a set point temperature

as a function of the outside temperature.

4 The MAUX outlet on the connection terminal

block is active.

4 The boiler operates at a set point temperature

equal to BOILER MAX.

5.5.3. Naming the circuits and generators

1. Access the "installer" level: Press key - for around 5 seconds.

Select the menu #NAMES OF THE CIRCUITS.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

3. Select the circuit or generator you wish to rename.

"Installer" level - #NAMES OF THE CIRCUITS menu

Parameter Description Name given by the customer

CIRC. A:

Circuit A

CIRC. B:

Circuit B

CIRC. C:

Circuit C

CIRC.AUX

Auxiliary circuit

CIRC.DHW

Domestic hot water circuit

GENE

Generator

4. Turn the rotary button to choose the first character from the list. To confirm, press the rotary button.

Then press again to enter a second character or turn the rotary button to leave an empty space.

6. Choose the other characters in the same way. The input zone may contain up to 6 characters.

To move from one character to another, turn the rotary button. To exit without modifications, press key h.

7. To confirm the name, press the rotary button and then turn the button slightly anti-clockwise. When the symbol U appears, press

the rotary button. The name is confirmed.

If the name reaches 6 characters, it is automatically confirmed when the last character is confirmed.

5.5.4. Setting the heating curve

If an outside temperature sensor is connected, it is possible to adapt the heating curve.

Access the "installer" level: Press key - for around 5 seconds.

2. Select the menu #SECONDARY INSTAL.P.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CIRC.B I

"Personalize the nameof this circuit B"

E F G H

C002344-C-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CIRC.B INPUT

"Personalize the nameof this circuit B"

X Y Z

C002345-C-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

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3. Select the parameter HEAT.CURV. ....

To modify the value directly, turn the rotary button. To modify the value by displaying the curve, press key f.

5. To modify the curve, turn the rotary button.

6. To confirm, press the rotary button. To cancel, press key h.

0.7 = Heating curve set

Heating curve without BCT

The BCT (Base heat Curve Temperature) allows a minimum operating temperature to be imposed on the heating circuit (this temperature may be constant if the circuit gradient is nil).

Maximum temperature of the circuit

Water temperature in the circuit for an outside temperature of 0°C

DAY set point on the circuit

Outside temperature for which the maximum water temperature in the circuit is reached

Value of the heating curve This value corresponds to the parameter HEAT.CURV.

¼ See chapter: ""Professional" settings", page 75

When you modify the heating curve, Z and T are recalculated and repositioned automatically.

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

BUILD.INERTIA

CIRC.CURVE B

CIRC.CURVE C

SCREED DRYING

2.0

0.7 No

C002316-D-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CIRC.CURVE B

"Slope of the heatcurve of the circuit B"

2.0

C002317-D-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

75 64

020 -15

C002318-B-04

0,7

0.7

20 0 -16

C°

1.5

C002319-B

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

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Heating curve with BCT

The BCT (Base heat Curve Temperature) allows a minimum operating temperature to be imposed on the heating circuit (this temperature may be constant if the circuit gradient is nil).

Maximum temperature of the circuit

Water temperature in the circuit for an outside temperature of 0°C

DAY set point on the circuit

Outside temperature for which the maximum water temperature in the circuit is reached

Value of the heating curve This value corresponds to the parameter HEAT.CURV.

¼ See chapter: ""Professional" settings", page 75

Value set to the parameter HCZP D

When you modify the heating curve, Z and T are recalculated and repositioned automatically.

5.5.5. Finalizing work

1. Remove the measuring equipment.

Put the flue gas sampling plug back in place.

3. Refit the front panel. Tighten the two screws by a quarter turn.

4. Raise the temperature in the heating system to approximately 70°C.

5. Shut down the boiler.

6. After about 10 minutes, vent the air in the heating system.

7. Checking the hydraulic pressure. If necessary, top up the water level in the heating system (recommended hydraulic pressure between 1,5 and 2 bar).

8. Tick the gas category used on the data plate.

9. Explain the operation of the installation, the boiler and the regulator to the users.

10.Inform the user of the periodicity of maintenance work to be carried out. Input the service date and the contact details of the installer.

11.Give all the instruction manuals to the user.

Commissioning of the boiler is now complete.

The various boiler parameters are preset in the factory. These factory settings are suitable for the most common heating systems. For other systems and situations, the parameters can be modified.

20 0 -15

C°

0.7

C002320-B

1 2

T001522-A

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

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5.6 Reading out measured values

The various values measured by the appliance are displayed in the #MEASURES menu.

To access "user" level: Press the > key.

2. To select the #MEASURES menu.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

58.

"User" level - #MEASURES menu

Parameter Description Unit

OUTSIDE TEMP.

Outside temperature °C

ROOMTEMP. A

(1)

Room temperature of circuit A °C

ROOMTEMP. B

(1)

Room temperature of circuit B °C

ROOMTEMP. C

(1)

Room temperature of circuit C °C

BOILER TEMP.

Water temperature in the boiler °C

PRESSURE

Water pressure in the installation bar

WATER TEMP.

(1)

Water temperature in the DHW tank °C

INST DWH TEMP.

(1)

Instant hot water temperature °C

STOR.TANK.TEMP

(1)

Water temperature in the storage tank °C

DCW TEMPERATURE

Domestic cold water temperature °C

SWIMMING P.T.B

(1)

Water temperature of the swimming pool on circuit B °C

SWIMMING P.T.C

(1)

Water temperature of the swimming pool on circuit C °C

OUTLET TEMP. B

(1)

Temperature of the flow water in circuit B °C

OUTLET TEMP. C

(1)

Temperature of the flow water in circuit C °C

SYSTEM TEMP.

(1)

Temperature of the system flow water if multi-generator °C

T.DHW BOTTOM

Water temperature in the bottom of the DHW tank °C

TEMP.TANK AUX

(1)

Water temperature in the second DHW tank connected to the AUX circuit °C

DHW A TEMP.

(1)

Water temperature in the second DHW tank connected to circuit A °C

BACK TEMP

Temperature of the boiler return water °C

WIND SPEED

Fan rotation speed rpm

POWER

Instantaneous boiler output (0%: Burner off or running at minimum output) %

CURRENT (µA) Ionization current µA

NB IMPULS.

Number of burner start-ups (not restartable) The meter is incremented by 8 every 8 start-ups

RUNTIME

Number of burner operation hours (not restartable) The meter is incremented by 2 every 2 hours

IN 0-10V

(1)

Voltage at input 0-10 V V

SEQUENCE

Control system sequence

CTRL

Software control number

(1) The parameter is only displayed for the options, circuits or sensors actually connected.

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

C002219-D-04

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

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5.7 Changing the settings

The boiler control panel is set for the most common heating systems. With

these settings, practically all heating systems operate correctly. The user or installer can optimise the parameters according to own preferences.

¼ For the "user" settings, refer to the user instructions.

5.7.1. Language selection

1. Access the "installer" level: Press key - for around 5 seconds.

Select the menu #LANGUAGE.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

"Installer" level - #LANGUAGE menu

Adjustment range Description

FRANCAIS Display in French DEUTSCH Display in German ENGLISH Display in English ITALIANO Display in Italian ESPANOL Display in Spanish NEDERLANDS Display in Dutch POLSKY Display in Polish

5.7.2. Calibrating the sensors

1. To access "user" level: Press the > key.

To select the #SETTING menu.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

3. To set the following parameters:

STD

(

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AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

C002219-D-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

"User" level - #SETTING menu

Parameter Adjustment range Description Factory setting Customer

setting

SUM/WIN 15 to 30 °C Used to set the outside temperature above

which heating will be shut down.

4 The heating pumps are shut down. 4 The burner will only start for domestic

hot water needs.

4 The letter E and the symbol p are

displayed.

22 °C

Heating is never shut down automatically

CALIBR. OUT

Outside sensor calibration: Used to correct the outside temperature

Outside temperature

CALIBR. ROOM A

(1)(1)

Calibration of the room sensor on circuit A: Is used to set a room offset Make

this setting 2 hours after switching on,

when the room temperature has stabilised

Room temperature of circuit A

OFFSET ROOM A

(1)

-5.0 to +5.0 °C Room offset on circuit A: Is used to set a room offset Make

this setting 2 hours after switching on,

when the room temperature has stabilised

0.0

ANTIFR. ROOM A 0.5 to 20 °C Room temperature antifreeze activation on

circuit A

6 °C

CALIBR. ROOM B

(1)(1)

Calibration of the room sensor on circuit B: Is used to set a room offset Make

this setting 2 hours after switching on,

when the room temperature has stabilised

Room temperature of circuit B

OFFSET ROOM B

(1)

-5.0 to +5.0 °C Room offset on circuit B: Is used to set a room offset Make

this setting 2 hours after switching on,

when the room temperature has stabilised

0.0

ANTIFR. ROOM B 0.5 to 20 °C Room temperature at which the antifreeze

mode is activated on circuit B

6 °C

CALIBR. ROOM C

(2)(1)

Calibration of the room sensor on circuit C: Is used to set a room offset Make

this setting 2 hours after switching on,

when the room temperature has stabilised

Room temperature of circuit C

OFFSET ROOM C

(3)(1)

-5.0 to +5.0 °C Room offset on circuit C: Is used to set a room offset Make

this setting 2 hours after switching on,

when the room temperature has stabilised

0.0

ANTIFR. ROOM C

(4)

0.5 to 20 °C Room temperature antifreeze activation on circuit C

6 °C

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

The parameter is only displayed if a room sensor is connected to the circuit concerned (3) The parameter is only displayed if no room sensor is connected to the circuit concerned or the sensor has no influence (4) The parameter is only displayed if the circuit concerned is actually connected

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

5.7.3. "Professional" settings

1. Access the "installer" level: Press key - for around 5 seconds.

To set the following parameters:

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

"Installer" level - #PRIMARY LIMITS menu

Parameter Adjustment range Description Factory setting Customer setting

BOILER MAX

20 to 90 °C Maximum boiler temperature 80 °C

MAX.R.HEAT(%)

(1)

0-100% Maximum boiler output during heating 100%

MAX.DHW(%)

(1)(2)

0-100% Maximum boiler output in DHW 100%

MIN.VENT.

(1)

1000-5000 rpm Minimum fan speed See table below

MAX.VENT.BOIL

(1)

1000-7000 rpm Maximum fan speed setting in heating See table below

MAX.VENT.DHW

(1)

1000-7000 rpm Maximum fan speed setting in domestic

hot water

See table below

START RPM

(1)

1000-5000 rpm Optimum start-up speed setting See table below

MIN.PUMP SPEED

(1)

20-100% Minimum pump speed 40 %

MAX.PUMP SPEED

(1)

20-100% Maximum pump speed 100 %

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

The parameter is only displayed if P.DHW is set to PUMP

"Installer" level - #SECONDARY LIMITS menu

Parameter Adjustment range Description Factory setting

MAX.CIRC.A

20 to 95 °C Maximum temperature (Circuit A)

See comments below

75 °C

MAX.CIRC.B

20 to 95 °C Maximum temperature (Circuit B)

See comments below

50 °C

MAX.CIRC.C

20 to 95 °C Maximum temperature (Circuit C)

See comments below

50 °C

OUT.ANTIFREEZE

OFF, -8 to +10 °C Outside temperature at which the installation's antifreeze protection

is activated. Below this temperature the pumps are permanently on and the minimum temperatures for each circuit are respected. When NIGHT

: STOP is set, the reduced temperature is maintained

in each circuit (#SECONDARY INSTAL.P menu). OFF: Antifreeze protection is not activated

+3 °C

HCZP D A

(1)(2)

OFF, 20 to 90 °C Curve base temperature in Daytime mode (Circuit A)

OFF

HCZP N A

(1)(2)

OFF, 20 to 90 °C Curve base temperature in Nighttime mode (Circuit A)

OFF

HCZP D B

(1)(2)

OFF, 20 to 90 °C Curve base temperature in Daytime mode (Circuit B)

OFF

HCZP N B

(1)(2)

OFF, 20 to 90 °C Curve base temperature in Nighttime mode (Circuit B)

OFF

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

The parameter can be set to the heating curve by pressing key f.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

"Installer" level - #SECONDARY LIMITS menu

Parameter Adjustment range Description Factory setting HCZP D C

(1)(2)

OFF, 20 to 90 °C Curve base temperature in Daytime mode (Circuit C)

OFF

HCZP N C

(1)(2)

OFF, 20 to 90 °C Curve base temperature in Nighttime mode (Circuit C)

OFF

PRIM.TEMP.DHW

50 to 90 °C Boiler temperature setting if producing domestic hot water 80 °C

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

The parameter can be set to the heating curve by pressing key f.

"Installer" level - #PRIMARY INSTAL.P menu

(1)

Parameter Adjustment range Description Factory setting Customer

setting

BURN.MIN.RUN

0 to 180 seconds Setting the burner minimum operation time (In

heating mode

)

30 seconds

TIMER GENE P.

1 to 30 minutes Maximum post-operation duration of the

generator pump

4 minutes

IN.BL STOP HEAT

Configuration of the PCU BL inlet If the contact is open, the heating is off. If the parameter P.DHW is set to VI, DHW production nevertheless remains functional.

Automatic

restart when the contact closes.

TOTAL STOP

Configuration of the PCU BL inlet If the contact is open, heating and DHW production are off. Automatic restart when the contact closes.

SAFETY MODE

Configuration of the PCU BL inlet If the contact is open, the boiler goes into safety lockout. The boiler needs to be reset to restart.

(1) The menu is displayed only if the INSTALLATION parameter is set to EXTENDED

"Installer" level - #SECONDARY INSTAL.P menu

Parameter Adjustment range Description Factory

setting

Customer setting

BUILD. INERTIA

(1)

0 (10 hours) to 10 (50 hours)

Characterisation of building's inertia: 0 for a building with low thermal inertia. 3 for a building with normal thermal inertia. 10

for a building with high thermal inertia.

Modification of the factory setting is only useful in exceptional cases.

3 (22 hours)

CIRC.CURVE A

(2)

0 to 4 Heating curve of the circuit A

See comments below

1.5

ROOM INFL. A

(1)

0 to 10 Influence of room sensor A

See comments below

CIRC.CURVE B

(2)

0 to 4 Heating curve of the circuit B

See comments below

0.7

ROOM INFL. B

(1)

0 to 10 Influence of room sensor B

See comments below

CIRC.CURVE C

(2)

0 to 4 Heating curve of the circuit C

See comments below

0.7

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2) The parameter can be set to the heating curve by pressing key f

(3) The parameter is only displayed if SCREED DRYING is other than OFF (4) The parameter is only displayed if IN 0-10V is set to ON. (5) If a reversal valve is connected, DHW priority will always be total regardless of the setting.

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

"Installer" level - #SECONDARY INSTAL.P menu

Parameter Adjustment range Description Factory

setting

Customer setting

ROOM INFL. C

(1)

0 to 10 Influence of room sensor C

See comments below

SCREED DRYING NO, B, C, B+C

Drying the floor See comments below

START DRYING TEMP

(3)

20 to 50 °C Screed drying start temperature 20 °C

STOP DRYING TEMP

(3)

20 to 50 °C Screed drying stop temperature 20 °C

NUMB. DAYS DRY.

(3)

0 to 99

NIGHT

(1)

DEC.

The lower temperature is maintained (Night mode)

See comments below

DEC.

STOP

The boiler is stopped (Night mode) See comments below

IN 0-10V

OFF / TEMPERATURE / POWER %

Activating the control at 0-10 V See comments below

OFF

VMIN/OFF 0-10V

(1)(4)

0 to 10 V Voltage corresponding to the instruction

set minimum

0.5 V

VMAX 0-10V

(1)(4)

0 to 10 V Voltage corresponding to the instruction

set maximum

9.5 V

CONS.MIN 0-10V

(1)

(4)

10 to 70 °C Instruction minimum set temperature 20 °C

CONS.MAX 0-10V

(1)

(4)

10 to 100 °C Maximum set temperature 80 °C

BAND WIDTH

(1)

4 to 16 K Control unit bandwidth for the 3-way

valves. Option of increasing the bandwidth if the valves

are rapid or of reducing it if they are

slow.

12 K

BOIL/3WV SHIFT

(1)

0 to 16 K Minimum temperature difference

between the boiler and the valves

4 K

H. PUMP DELAY

(1)

0 to 15 minutes Timing of the shutdown of the heating

pumps. The timing of heating pump shutdown prevents the boiler overheating.

4 minutes

HW. PUMP DELAY

(1)

(2)

2 to 15 minutes Timing of the shutdown of the domestic

hot water pump. The

timing of the domestic hot water load pump shutdown prevents the boiler and the heating circuits overheating (Only if a load pump is used).

2 minutes

ADAPT ON

Automatic adaptation of the heating curves

for each circuit with a room sensor

with an influence of >0.

OFF

The heating curves can only be modified manually.

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

The parameter can be set to the heating curve by pressing key f

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

06/09/2010 - 300024755-001-A

"Installer" level - #SECONDARY INSTAL.P menu

Parameter Adjustment range Description Factory

setting

Customer setting

PRIORITY DHW

(5)

TOTAL

Interruption of pool heating and reheating during domestic hot water production.

TOTAL

SLIDING

Domestic hot water production and heating on the valve circuits if the available output is sufficient and the hydraulic connection allows.

Heating and domestic hot water production in parallel if the hydraulic connection allows. a

Risk of overheating in the direct circuit.

LEG PROTEC

The "anti legionella" function acts to prevent the development of legionella in the dhw tank, these bacteria are responsible for legionellosis.

OFF

Anti-legionella function not activated

DAILY

The tank is overheated every day from 4:00 o'clock to 5:00 o'clock

WEEKLY

The tank is overheated every Saturday from 4:00 o'clock to 5:00 o'clock

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED (2)

The parameter can be set to the heating curve by pressing key f

MAX.CIRC...

WARNING

If using underfloor heating, do not modify the factory setting (50 °C). To install this, please consult existing legislation.

4 In the case of a direct circuit, connect a safety thermostat to the

BL contact.

4 In the case of a 3-way valve circuit (B or C), connect a safety

thermostat to the TS contact.

CIRC. CURVE ...

Heating curve circuit A, B or C

Outside temperature (°C)

Water flow temperature (°C)

Maximum temperature of the circuit B - C

M001678-B

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

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SCREED DRYING

Used to force a constant flow temperature or a train to accelerate screed drying on underfloor heating. The setting for these temperatures must follow the screed-layer's recommendations. Activation of this parameter (setting other than OFF) forces the permanent display of SCREED DRYING and deactivates all other control system functions. When floor drying is active on a circuit, all other circuits (e.g. DHW) are shut down. The use of this function is only possible on circuits

and C.

STOP DRYING TEMP

START DRYING TEMP

Today

NUMB. DAYS DRY.

Normal regulation (End of drying)

Heating temperature setting (°C)

For example

STOP DRYING TEMP: 47 °C

START DRYING TEMP: 20 °C

NUMB. DAYS DRY.

Normal regulation (End of drying)

Heating temperature setting (°C)

Every day at midnight (00:00): the set point (START

DRYING

TEMP) is recalculated and the remaining number

of days (NB DAYS DRYING) is decremented.

ROOM S.INFL

Used to adjust the influence of the room sensor on the water temperature for the circuit concerned.

No influence (remote control fitted in a location with no influence)

Slight influence

Average influence (recommended)

Room thermostat type operation

C002768-A

00:00 00:00 00:00

10 9 8 7 6 5 4 3 2 1

23 20

C002769-A

00:00 00:00 00:00

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

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NIGHT

This parameter is displayed if at least one circuit does not include a room sensor.

For circuits without a room sensor:

4 NIGHT

:DEC. (Reduced): The reduced temperature is maintained

during reduced periods. The circuit pump operates constantly.

4 NIGHT :STOP (Stop): Heating is shut down during reduced

periods. When installation antifreeze is active, the reduced

temperature is maintained during reduced periods.

For circuits with a room sensor:

4 When the room temperature is lower than the room sensor set

point: The reduced temperature is maintained during reduced

periods. The circuit pump operates constantly.

4 When the room temperature is higher than the room sensor set

point: Heating is shut down during reduced periods. When

installation antifreeze is active, the reduced temperature is

maintained during reduced periods.

Function 0-10 V

This function controls the boiler using an external system that includes a 0-10 V output connected to the 0-10 V input. This command imposes a temperature or output instruction on the boiler. It will be necessary to ensure that the parameter BOILER MAX is higher than

CONS.MAX 0-10V.

Instruction set outlet temperature (°C)

Power input signal (V) - DC

0 V

4 CONS.MIN 0-10V

5 CONS.MAX 0-10V

6 VMIN/OFF 0-10V

7 VMAX 0-10V

10 V

Voltage at input

Boiler temperature / Boiler output

If the input voltage is less than VMIN/OFF 0-10V, the boiler is off. The boiler temperature setting corresponds strictly to the

0-10 V input. The secondary boiler circuits continue to operate but have no impact on the water temperature in the boiler. If using the 0-10 V input and a secondary boiler circuit, the external regulator providing this 0-10 V power supply must always request a temperature at least equal to the needs of the secondary circuit.

M001679-A

4 3 6 2 7 8

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

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5.7.4. Configuring the network

1. Access the "installer" level: Press key - for around 5 seconds.

Select the menu #NETWORK.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the menu selected

or confirm a value modification.

For a detailed explanation of menu browsing, refer

to the chapter: "Browsing in the menus", page

3. To set the following parameters:

"Installer" level - #NETWORK menu

(1)

Parameter Adjustment range Description Factory setting Customer

setting

CASCADE:

ON / NO ON: System in cascade

MASTER CONTROLLER

(2)

ON / NO Configure this control system as

master on the bus

SYSTEM NETWORK

(3)

Specific menu: Enlist generators or VMs in cascade mode (See following chapter: "Connecting appliances in cascade")

FUNCT

(3)

CLASSIC

Operation in cascade: Successive triggering of the various boilers in the cascade according to requirements

CLASSIC

PARALLEL

Functioning in parallel cascade: If the outside temperature is lower than the value PARALLEL.CASC, all of the boilers

are started up at the same time

PARALLEL CASC.

(4)

-10 to 20 °C Outside temperature triggering all stages in parallel mode

10 °C

TEMP.P.GENE.CASC

(4)

0 to 30 min Minimum duration of post-operation of

the generator pump

0 mn

INTER STAGE TIMER

(2)

1 to 30 min Time delay for starting up or shutting

down generators.

4 mn

SLAVE NUMBER

(5)

2 to 10 Set the network address of the

secondary generator

3WW PLC

Specific menu (Not used)

InOne SCENARIO

Specific menu: Configure the InOne scenarios to be managed by the

SCU PCB (See following chapter: "Configuring the scenarios")

REMOVE DEVICE

Specific menu: see below

(1) The menu is displayed only if the INSTALLATION parameter is set to EXTENDED (2)

The parameter is only displayed if CASCADE is set to YES (3) The parameter is displayed only if MASTER CONTROLER is set to YES (4) The parameter is only displayed if FUNCT is set to PARALLEL (5) The parameter is displayed only if MASTER CONTROLER is set to OFF

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

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Connecting appliances in cascade

It is possible, in a cascade configuration, to enlist generators and/or VMs as slaves. Proceed as follows:

Set CASCADE to YES by pressing the rotary button and then turning and pressing it again to confirm.

2. Select SYSTEM NETWORK and press the rotary button to go to the specific menu.

3. To add a slave appliance to the network, select ADD SLAVE.

4. The screen displayed allows you to choose numbers for the slave boilers to be added to the network. Numbers 2 to 10 are dedicated to the generators and numbers 20 to 39 to the VM. Turn the rotary button to scroll through the numbers and press to confirm the number chosen. Press j to go back to the previous list.

5. To remove a slave appliance from the network, select ERASE NETWORK.

6. The screen displayed allows you to choose the numbers of the slave boilers to be removed from the network. Turn the rotary button to scroll through the numbers and press to remove the number chosen. Press j to go back to the previous list.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CASCADE MASTER CONTROLER

SYSTESYSTEM NETWORK MNETZ

FUNCT INTER STAGE TIMER

ON ON

TRADITIONAL

C002409-B-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

NB.NETWORK ELEMENTS

ADD SLAVE ERASE NETWORK

C002410-B-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SKLAVE ADDIEREN

GENE: 2, 5, VM: 29,

C002412-A-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

ERASE NETWORK

GENE: 2, 5, VM: 29,

C002413-A-04

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7. Select NUMB.ELEMENTS.NETWORK. This screen summarises the elements in the network recognised by the system.

Press

to go back to the previous list.

Configuring the scenarios

It is possible to choose a scenario and allocate it to various IOBL units via the carrier current. Proceed as follows:

1. In the menu #NETWORK, select InOne SCENARIO.

2. Choose a number to allocate to the scenario by turning the rotary button; up to 4 scenarios can be saved. To confirm, press the rotary button.

3. Choose the desired scenario by turning the rotary button and then confirm.

Scenarios available Description

HOLIDAYS ON

Holiday mode active (all circuits)

HOLIDAYS OFF

Holiday mode inactive (all circuits)

OUT.AUX ON

Aux outlet enabled

OUT.AUX OFF

Aux outlet disabled

DHW DAY

DHW in day mode

DHW NIGHT

DHW in night mode

DEFAULT ON

Default active

DEFAULT OFF

No active default

INPUT TEL.ON

Telephone input active

INPUT TEL.OFF

Telephone input not active

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

NB.NETWORK ELEMENTS

GENE: 2, 5, VM: 29,

C002411-B-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

INTER STAGE TIMER 3WW PLC

InOne SCENARIO

REMOVE DEVICE

C002414-B-04

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SCENARIO

"Please choose the scenario to define"

C002415-A-04

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

Configure the scenario

HOLIDAYS ON

C002416-A-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

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4. Enlist the various InOne units that have to abide by the scenario and confirm by pressing the rotary button.

Removing a device

To remove a device, proceed as follows:

In the menu #NETWORK, select REMOVE DEVICE.

2. Choose the device to be removed by turning the rotary button and pressing to confirm.

Controlling the boiler from an IOBL Scenario Switch

It is possible to control the boiler from a scenario switch (the boiler is then considered a slave boiler). Proceed as follows:

1. Remove the cover from the IOBL scenario switch to access the LEARN key.

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

"Integrate the differents InOneactors. Press on the button to finish"

C002417-A-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

INTER STAGE TIMER 3WW PLC InOne SCENARIO

REMOVE DEVICE

C002419-B-04

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

"Select the InOne device to remove"

MASTER CONTROLER

C002420-B-04

C002421-B

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

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C002422-B-04

230V

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

"An external devicetries to connect, do you want to authorize it?"

LEARN ? YES

2. Press the LEARN key and the control key used to pilot the scenario. A pairing signal is sent to the boiler by carrier current, which displays the following message on the control panel: "A device is trying to connect, do you want to allow this?

3. Set the display to YES by turning the rotary button and pressing to confirm.

4. Choose the circuit used to run the scenario by turning the rotary button and pressing to confirm.

CAUTION

If one of the SCU PCBs is not correctly paired, the following message appears: "NB not all of the SCUs are recognised

Start the pairing procedure again.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

LEARN ?

"An external devicetries to connect, do you want to authorize it?"

YES

C002423-A-04

YES

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CHOICE THE CIRC. B

C002424-B-04

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

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5. Choose

the desired scenario by turning the rotary button and then

confirm.

Scenarios available Description

AUTO

Heating according to the time programme

DAY

Comfort mode

NIGHT

Reduced mode

HOLIDAYS

Holiday mode P1 Programme P1 chosen P2 Programme P2 chosen P3 Programme P3 chosen P4 Programme P4 chosen

6. Terminate pairing by pressing the LEARN key on the IOBL scenario switch.

Erasing a scenario from the IOBL Scenario Switch

It is possible to remove a scenario using the IOBL scenario switch. Proceed as follows:

1. Press

the LEARN key on the scenario switch, then the control key that pilots the scenario to be erased. A message asking whether you wish to erase the scenario is displayed on the control panel interface.

2. Set the display to YES by turning the rotary button and pressing to confirm.

3. Confirm removal by pressing the LEARN key on the IOBL scenario switch.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

FUNCTION :

"Function of the scenario"

HOLIDAYS

C002425-A-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

REMOVE?

Scene reset

yes

C002426-A-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CONFIRM: "Please close the procedure with LEARN on the scenario switch"

C002427-A-04

5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115

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5.7.5. Return to the factory settings

To reset the appliance, proceed as follows:

Press key C, > and j simultaneously for 4 seconds. The menu #RESET is displayed.

2. To set the following parameters:

#RESET menu

Choice of generator Parameter Description

GENERATOR RESET TOTAL

Performs a TOTAL RESET of all parameters

EXCEPT PROG.

Performs a parameter RESET but retains the timer programmes

PROG.

Performs a RESET on the timer programmes but retains the parameters

IOBL

Resets the system's network connections

SENSOR SCU

Performs a RESET of the generator sensors connected

ROOM SENSOR

Performs a RESET of the room sensors connected

After reset (TOTAL RESET and RESET EXCEPT PROG.), the control system goes back to the display of the language choice after a few seconds.

Select the desired language by turning the rotary button.

2. To confirm, press the rotary button.

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

MODE

SUNDAY 11:45

C002296-B-04

+ +

Français - Deutsch - English Italiano - Espanol - Nederlands

- Polski -

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

LANGUE FRANCAIS

C003079-A

MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem

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6 Start-up - IniControl

6.1 Control panel

6.1.1. Description of the keys

Return button j, Escape G or Manual reset t

Heating temperature button d or [-]

DHW temperature button r or [+]

S [Enter] Key

) [Chimney-sweeping] keys Press keys A and B simultaneously

f [Menu] keys Press keys C and D simultaneously

)

ddd

1 2

SERVICE

°C°Fh barPsi % rpm kW uA x10 l/min

°CSt:

C002968-D

A B

E F

C D

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6.1.2. Description of the display

Key functions

Back to the previous level without saving the modifications made

Manual reset

Central heating function: Access to the max. heating temperature parameter.

[-]

To reduce a value

Sanitary hot water function: Access to sanitary hot water temperature parameter.

[+]

To increase a value

Access the menu selected or confirm a value modification

Operating modes

State heating pump A

Heating programme deactivated: The heating function is deactivated

State DHW pump

Manual mode

Flame output level

Low output level 0 - 25 %

Average output level 25 - 50 %

High output level 50 - 75 %

Output level 75 - 100 %

)

ddd

1 2

SERVICE

°C°Fh barPsi % rpm kW uA x10 l/min

°CSt:

C003042-B

)

ddd

1 2

SERVICE

°C°Fh barPsi % rpm kW uA x10 l/min

°CSt:

C003043-B

)

ddd

1 2

SERVICE

°C°Fh barPsi % rpm kW uA x10 l/min

°CSt:

C003044-B

)

ddd

1 2

SERVICE

°C°Fh barPsi % rpm kW uA x10 l/min

°CSt:

C003046-B

MCA 45 - 65 - 90 - 115 6. Start-up - IniControl

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System pressure

bar

Pressure indicator: The

symbol is displayed next to the installation's pressure value. If no water pressure sensor is connected, -.appears on the display

Other information

User menu: Parameters at user level can be changed

Information menu: Reading the various current values

)

Chimney-sweeping position: Forced full or part load for CO2 measurement

Service menu: Parameters at installer level can be changed

Display with the symbols: $ + K + Z (Maintenance message

)

Hour counter menu: Readout of the operating hours, number of successful starts and hours on mains supply

On/Off switch: After 5

lock-outs, the device must be switched off/on again

Outside temperature sensor present

The symbol is displayed when the boiler pump is operating

Fault: Boiler

indicates a fault. This is signalled by a P or X code

and a flashing display

6.2 Check points before commissioning

6.2.1. Preparing the boiler for commissioning

WARNING

Do not put the boiler into operation if the supplied gas is not in accordance with the approved gas types.

Preparatory procedure for boiler commissioning:

4 Check

that the gas type supplied matches the data shown on the

boiler's data plate.

)

ddd

1 2

SERVICE

°C°Fh

barPsi

% rpm kW uA x10 l/min

°CSt:

C003047-C

)

ddd

1 2

SERVICE

°C°Fh barPsi % rpm kW uA x10 l/min

°CSt:

C003048-B

6. Start-up - IniControl MCA 45 - 65 - 90 - 115

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4 Check the gas circuit. 4 Check the hydraulic circuit. 4 Check the water pressure in the heating system. 4 Check the electrical connections to the thermostat and the other

external controls.

4 Check the other connections. 4 Test the boiler at full load. Check the setting of the gas/air ratio

and, if necessary, correct it.

4 Test the boiler at part load. Check the setting of the gas/air ratio

and, if necessary, correct it.

4 Finalizing work.

6.2.2.

Gas circuit

WARNING

Ensure that the boiler is switched off.

1. Open the main gas supply.

2. Unscrew

the two screws located under the front panel by a quarter

turn and remove the panel.

3. Tilt the control box forwards by opening the holding clips located at the sides.

4. Check the gas supply pressure at the measurement point C on the gas valve unit.

WARNING

To ascertain the gas types permitted, see chapter:

"Equipment categories", page

5. Check the tightness of the gas connections made after the gas valve unit in the boiler.

Check the leak tightness of the gas inlet, including the gas valves. The test pressure must not exceed 60 mbar.

7. Purge the gas supply pipe within the boiler by unscrewing the measurement point on the gas block. Tighten the measurement point when the pipe has been sufficiently purged.

8. Check the tightness of the gas connections in the boiler.

6.2.3. Hydraulic circuit

4 Check the syphon — this must be completely filled with clean

water.

4 Check that there are no leaks on the hydraulic connections.

6.2.4.

Electrical connections

4 Check the electrical connections.

T003243-A

C C

MCA 45 - 65 - 90 - 115 6. Start-up - IniControl

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6.3 Putting the appliance into operation

WARNING

If adapting to another gas type i.e. propane, the gas valve must be adjusted before switching on the boiler.

¼ See chapter: "Adapting to another gas type", page 93

1. Tilt the control box upwards again and fasten it using the clips located at the sides.

Open the main gas supply.

3. Open the gas valve on the boiler.

4. Turn on the boiler using the on/off switch.

5. Set the controls (thermostats, control system) so that they request heat.

6. The start-up cycle begins and cannot be interrupted. During the start-up cycle, the display shows the following information: A short test where all segments of the display are visible.

fK[xx

: Software version

pK[xx

: Parameter version

The version numbers are displayed alternately.

7. A vent cycle of a duration of around 3 minutes is carried out automatically.

If a DHW sensor is connected and the anti-legionella function is activated, the boiler starts to heat the water in the DHW tank as soon as the vent programme has been completed.

By pressing the ®

key for a short time, the current operating status

is shown on the display:

Heat demand d

Heat demand stopped

1 : Fan ON 1 : Post-ventilation " : Boiler is igniting 5 : Burner stop

6 : Post-circulation of the pump

3 : Heating System 0 : Standby

In addition to 0,

in STAND-BY the display normally shows the water

pressure and the symbols d, 5tH and r.

Error during the start-up procedure:

4 No information is shown on the display:

- Check the mains supply voltage

- Check the main fuses

- Check the fuses on the control panel:

(F1 = 6,3 AT, F2 = 2 AT)

- Check the connection of the mains lead to the connector X1 in

the instrument box

4 A fault is indicated on the display by the fault symbol a and a

flashing fault code.

- The meaning of the error codes is given in the error table.

- Press for 3 seconds on key J to restart the boiler.

6. Start-up - IniControl MCA 45 - 65 - 90 - 115

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If the economy setting (eco setting) is on, then, after central heating operation, the boiler will not start to run for hot tap water production.

6.4 Gas settings

6.4.1. Adapting to another gas type

WARNING

Only a qualified engineer may carry out the following operations.

The boiler is preset in the factory to operate on natural gas H (G20).

For operation on another group of gases, carry out the following operations.

In case of functioning on propane:

Boiler type For conversion to propane

MCA 45 Rotate the adjusting screw A on the venturi 4¾ turns in a

clockwise direction

MCA 65 Rotate the adjusting screw A on the venturi 6½ turns in a

clockwise direction MCA 90 Fit the gas restrictor in the gas block MCA 115 First turn the setting screw A

clockwise until it is closed, then: Rotate the adjusting screw A on the gas block 3,5 - 4 turns in an anticlockwise direction

2. Regulate the fan speed as indicated in the table (if required). The setting can be modified using parameters

p17, p18

p19

and

p20

See chapter: "Description of the parameters", page 100

3. Set the air/gas ratio. For more detailed information on this subject, see the following paragraphs:

"Setting the air/gas ratio (Full load)", page 93

"Setting the air/gas ratio (Part load)", page 94

6.4.2. Setting the air/gas ratio (Full load)

1. Unscrew the plug of the flue gas measurement point.

Connect the flue gas analyser.

WARNING

Ensure that the opening around the sensor is completely sealed when taking measurements.

T003241-A

A A

T001581-A

MCA 45 - 65 - 90 - 115 6. Start-up - IniControl

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3. Set

the boiler to full load. Press keys A and B simultaneously. The

display shows

. The symbol ) appears.

4. Measure the percentage of O2 or CO2 in the flue gases.

5. Compare the values measured with the checking values given in the table (Front panel removed).

6. If necessary, adjust the gas/air ratio using the adjusting screw (A).

O2/CO2 control and setting values for gas

H (G20) at full load

Boiler type Setting value Checking value

O 2 (%) CO 2 (%) O 2 (%) CO 2 (%)

O2/ CO2 control and setting values for propane (

G31) at full load

Boiler type Setting value Checking value

O 2 (%) CO 2 (%) O 2 (%) CO 2 (%)

6.4.3. Setting the air/gas ratio (Part load)

1. Unscrew the plug of the flue gas measurement point.

2. Connect the flue gas analyser.

WARNING

Ensure that the opening around the sensor is completely sealed when taking measurements.

3. Set the boiler to part load. Press the [-] key several times until

is displayed on the screen.

Measure the percentage of O2 or CO2 in the flue gases.

5. Compare the values measured with the checking values given in the table (Front panel removed).

)

1 2

bar

C003056-A

T003241-A

A A

T001581-A

)

1 2

bar

C003057-B

6. Start-up - IniControl MCA 45 - 65 - 90 - 115

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6. If necessary, adjust the gas/air ratio using the adjusting screw (B).

O2/CO2 control and setting values for gas H (G20) at low speed

Boiler type Setting value Checking value

O 2 (%) CO 2 (%) O 2 (%) CO 2 (%)

O2/CO2 control and setting values for propane (

G31) at low speed

Boiler type Setting value Checking value

O 2 (%) CO 2 (%) O 2 (%) CO 2 (%)

6.5 Checks and adjustments after commissioning

6.5.1. Setting the heating curve

1. Press the two keys f simultaneously and then key [+] until the symbol a flashes on the menu bar.

Select the installers menu using the key S.

c0de

appears

on the display.

3. Use keys [-] or [+] to input the installer code

0012

4. Press key [+] until the symbol - is displayed.

5. Press the [+] key until

5[3

is displayed

T003242-A

B B

MCA 45 - 65 - 90 - 115 6. Start-up - IniControl

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Heating curve without BCT

Maximum temperature of the circuit P1

Water temperature in the circuit for an outside temperature of 0°C

DAY set point on the circuit S1

Outside temperature for which the maximum water temperature in the circuit is reached

Value of the heating curve This value corresponds to the parameter S3

6.5.2. Finalizing work

1. Remove the measuring equipment.

Put the flue gas sampling plug back in place.

3. Refit the front panel. Tighten the two screws by a quarter turn.

4. Push key j to return the boiler to normal operating mode.

5. Raise the temperature in the heating system to approximately 70°C.

6. Shut down the boiler.

7. After about 10 minutes, vent the air in the heating system.

8. Checking the hydraulic pressure. If necessary, top up the water level in the heating system (recommended hydraulic pressure between 1,5 and 2 bar).

9. Tick the gas category used on the data plate.

10.Explain the operation of the installation, the boiler and the regulator to the users.

11.Inform the user of the periodicity of maintenance work to be carried out. Input the service date and the contact details of the installer.

12.Give all the instruction manuals to the user.

Commissioning of the boiler is now complete.

The various boiler parameters are preset in the factory. These factory settings are suitable for the most common heating systems. For other systems and situations, the parameters can be modified.

20 0 -16

C°

1.5

C002319-B

T001522-A

6. Start-up - IniControl MCA 45 - 65 - 90 - 115

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6.6 Reading out measured values

6.6.1. Reading out measured values

The following current values can be read off the information menu Q:

4 5t = State. 4 5v = Sub-status. 4 t1 = Flow temperature (°C). 4 t" = Return temperature (°C). 4 t3 = Calorifier temperature (°C). 4 t4 = Outside temperature (°C). 4 t5 = Solar boiler temperature

(°C).

4 5p = Internal set point (°C). 4 fl = Ionisation current (µA). 4 Mf = Fan speed in rpm. 4 pr = Water pressure (bar). 4 p; = Supplied relative heat output (%).

MCA 45 - 65 - 90 - 115 6. Start-up - IniControl

06/09/2010 - 300024755-001-A

The current values can be read as follows:

Press the two f keys simultaneously. The symbol Q flashes.

2. Confirm using key S.

is displayed, alternating with the

current status 3 (for example).

3. Press the [+] key.

is displayed, alternating with the current

sub-status

(for example).

4. Press the [+] key.

is displayed, alternating with the current

flow temperature

°C (for example).

5. Press the [+] key successively to scroll down the various parameters.

t", t3, t4, t5

6. Press the [+] key.

is displayed, alternating with the internal

set point

°C (for example).

7. Press the [+] key.

is displayed, alternating with the current

ionisation current

µA (for example).

8. Press the [+] key.

is displayed, alternating with the current

fan rotation speed

3000

rpm (for example).

9. Press the [+] key.

is displayed, alternating with the current

water pressure

bar (for example). If no water pressure sensor

is connected, [-.-] appears on the display.

10.Press the [+] key.

is displayed, alternating with the current

modulation percentage

% (for example).

11.Press the [+] key. The readout cycle starts again with

12.Press 2 times on key j to return to the current operating mode.

)

bar

C003049-A

6. Start-up - IniControl MCA 45 - 65 - 90 - 115

06/09/2010 - 300024755-001-A

DeDietrich MCA 45 - 65 - 90 - 115, Innovens Pro MCA 45, Innovens Pro MCA 65, Innovens Pro MCA 90, Innovens Pro MCA 115 Installation And Service Manual

Specifications and Main Features

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