DeDietrich MCA 45 - 65 - 90 - 115 Installation And Service Manual
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DeDietrich MCA 45 - 65 - 90 - 115 Installation And Service Manual

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

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Summary of Contents for DeDietrich MCA 45 - 65 - 90 - 115

  • Page 1 Ireland Innovens Pro Wall-hung gas condensing boilers MCA 45 - 65 - 90 - 115 Installation and Service Manual 300024755-001-A...

  • Page 2: Eg Declaration Of Conformity

    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...

  • Page 3: Table Of Contents

    Contents Introduction ....................6 Used symbols ............6 Abbreviations ............6 General ..............7 1.3.1 Manufacturer's liability ..........7 1.3.2 Installer's liability .............7 1.3.3 User's liability ............7 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 Safety instructions and recommendations ..........10 Safety instructions ..........10 Recommendations ..........10 Technical description ................12...
  • Page 4 Contents 4.3.4 Main dimensions ...........20 Positioning the boiler .........21 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 Gas connection ...........24 Flue gas system connections ......25 4.7.1 Classification ............25...
  • Page 5 5.2.4 Electrical connections ...........60 Putting the appliance into operation ....60 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 Checks and adjustments after commissioning ...........65 5.5.1 Displaying the parameters in extended...
  • Page 6 Contents 6.6.3 Status and sub-status ...........99 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 Switching off the appliance ..............106...
  • Page 7 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 Failure history ...........133 9.5.1...

  • Page 8: Introduction

    1. Introduction MCA 45 - 65 - 90 - 115 Introduction 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.

  • Page 9: General

    MCA 45 - 65 - 90 - 115 1. Introduction 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.

  • Page 10: Homologations

    1. Introduction MCA 45 - 65 - 90 - 115 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...

  • Page 11: Factory Test

    MCA 45 - 65 - 90 - 115 1. Introduction 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 (CO 4 Water tightness...

  • Page 12: Safety Instructions And Recommendations

    2. Safety instructions and recommendations MCA 45 - 65 - 90 - 115 Safety instructions and recommendations 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..).
  • Page 13 MCA 45 - 65 - 90 - 115 2. Safety instructions and recommendations 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.

  • Page 14: Technical Description

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

  • Page 15: System In Cascade

    MCA 45 - 65 - 90 - 115 3. Technical description 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.
  • Page 16 3. Technical description MCA 45 - 65 - 90 - 115 Boiler type MCA 45 MCA 65 MCA 90 MCA 115 General Flow rate setting Adjustable Modulating, Start/Stop, 0 - 10 V minimum-maximum kW 8,0 - 40,0 12,0 - 61,0 14,1 - 84,2 16,6 - 107,0 Nominal output (Pn) Heating System (80/60 °C)

  • Page 17: Sensor Characteristics

    MCA 45 - 65 - 90 - 115 3. Technical description 3.4.1. Sensor characteristics Outside sensor Outlet sensor circuit B+C Boiler sensor Domestic hot water sensor Return sensor -20 °C 2392 ¨ 32014 ¨ -20 °C 98932 ¨ 0 °C -16 °C 2088 ¨...

  • Page 18: Installation

    4. Installation MCA 45 - 65 - 90 - 115 Installation Regulations governing installation WARNING Installation of the appliance must be done by a qualified engineer in accordance with prevailing local and national regulations. Package list 4.2.1. Standard delivery The boiler is composed of 2 packages:...
  • Page 19 MCA 45 - 65 - 90 - 115 4. Installation 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)

  • Page 20: Choice Of The Location

    4. Installation MCA 45 - 65 - 90 - 115 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. T001982-A 4.3.2.

  • Page 21: Ventilation

    MCA 45 - 65 - 90 - 115 4. Installation 4.3.3. Ventilation Distance between the front of the appliance and the internal wall of the cupboard. n . 1 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.

  • Page 22: Main Dimensions

    4. Installation MCA 45 - 65 - 90 - 115 4.3.4. Main dimensions T002614-C Connection of the combustion gas exhaust pipe ; Ø 80 mm (≤ 45 kW) / Ø 100 mm (≥ 65 kW) Connection of the air intake pipe ;...

  • Page 23: Positioning The Boiler

    MCA 45 - 65 - 90 - 115 4. Installation 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.

  • Page 24: Connection Of The Heating Circuit

    4. Installation MCA 45 - 65 - 90 - 115 n 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).

  • Page 25: Connecting The Expansion Vessel

    MCA 45 - 65 - 90 - 115 4. Installation 4. Remove the anti-dust button located on the heating return connection z under the boiler. 5. Connect the heating water return pipe to the heating return connection. 6. Fit the pump in the return pipe.

  • Page 26: Connecting The Condensate Discharge Pipe

    4. Installation MCA 45 - 65 - 90 - 115 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.

  • Page 27: Flue Gas System Connections

    MCA 45 - 65 - 90 - 115 4. Installation Flue gas system connections 4.7.1. Classification Lmax Lmax = L Lmax C 33 Lmax Lmax Lmax Lmax C 33 C 13 Lmax Lmax = B 23 C 93 C 33...

  • Page 28: Lengths Of The Air/Flue Gas Pipes

    4. Installation MCA 45 - 65 - 90 - 115 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 Only factory components are authorised for connecting the boiler and the terminal.

  • Page 29: Installing The Outside Sensor

    MCA 45 - 65 - 90 - 115 4. Installation 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.

  • Page 30: Electrical Connections

    4. Installation MCA 45 - 65 - 90 - 115 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.) 8800N002-C 4.8.2. Installing the outside sensor Mount the sensor using the screws and dowels provided.

  • Page 31: Recommendations

    MCA 45 - 65 - 90 - 115 4. Installation 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...

  • Page 32: Fitting And Connecting The Control Panel

    4. Installation MCA 45 - 65 - 90 - 115 4.9.3. Fitting and connecting the control panel 1. Unscrew the 2 screws under the front panel by a quarter turn. 2. Remove the front panel. 3. Fit and connect the control panel.

  • Page 33: Accessing The Connection Terminal Blocks

    MCA 45 - 65 - 90 - 115 4. Installation 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: 1.

  • Page 34: Connecting The Pump

    4. Installation MCA 45 - 65 - 90 - 115 6. Unclip the PCB cover. T002862-A 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.
  • Page 35 MCA 45 - 65 - 90 - 115 4. Installation 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.

  • Page 36: Connecting A Direct Heating Circuit

    4. Installation MCA 45 - 65 - 90 - 115 4. Connect the pump connection cable to the cable bundle by opening and closing the cable bundle bands. T002049-B 4.9.7. Connecting a direct heating circuit On/off 0-10V S AMB C...

  • Page 37: Connecting A Direct Heating Circuit And A Domestic Hot Water Tank

    MCA 45 - 65 - 90 - 115 4. Installation Connect a safety thermostat if the heating circuit is for underfloor heating. Remove the bridge. Connect the wires from the safety thermostat to the connector. Do not connect anything to the terminal block.

  • Page 38: Connecting Two Circuits And A Domestic Hot Water Tank After The Mixing Tank

    4. Installation MCA 45 - 65 - 90 - 115 Connect the DHW tank anode. CAUTION 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).
  • Page 39 MCA 45 - 65 - 90 - 115 4. Installation TS + On/off 0-10V S AMB C S AMB B S AMB A Tout Tdhw 4 3 2 1 2 1 TS + S SYST + TA - S ECS...

  • Page 40: Hot Water Storage Tank Connection

    4. Installation MCA 45 - 65 - 90 - 115 Connect the DHW tank anode. CAUTION 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).
  • Page 41 MCA 45 - 65 - 90 - 115 4. Installation On/off 0-10V S AMB C S AMB B S AMB A Tout Tdhw 4 3 2 1 2 1 TS + S SYST + TA - S ECS S EXT S DEP C...
  • Page 42 4. Installation MCA 45 - 65 - 90 - 115 DIEMATIC iSystem - Settings to be made for this type of installation Parameters Access Settings to be made See ¼ "Displaying the parameters in extended mode", page INSTALLATION "Installer" level...
  • Page 43 MCA 45 - 65 - 90 - 115 4. Installation n PS storage tank and DHW tank connected to the boiler On/off 0-10V S AMB C S AMB B S AMB A Tout Tdhw 4 3 2 1 2 1...
  • Page 44 4. Installation MCA 45 - 65 - 90 - 115 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...
  • Page 45 MCA 45 - 65 - 90 - 115 4. Installation n PS 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.

  • Page 46: Pool Connection

    4. Installation MCA 45 - 65 - 90 - 115 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 ¼...
  • Page 47 MCA 45 - 65 - 90 - 115 4. Installation 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.

  • Page 48: Connecting A Mixed Tank

    4. Installation MCA 45 - 65 - 90 - 115 The swimming pool can also be connected to circuit C by adding the AD249 option: Make the connection to the terminal blocks marked Set the parameters for circuit C. n Hourly programming of the secondary circuit pump The secondary pump operates during programme B comfort periods in summer and winter alike.

  • Page 49: Connecting The Options

    MCA 45 - 65 - 90 - 115 4. Installation 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.
  • Page 50 4. Installation MCA 45 - 65 - 90 - 115 TS + On/off 0-10V S AMB C S AMB B S AMB A Tout Tdhw 4 3 2 1 2 1 TS + S SYST + TA - S ECS...

  • Page 51: Connection In Cascade

    MCA 45 - 65 - 90 - 115 4. Installation 4.9.14. Connection in cascade n DHW tank after the mixing tank C002910-B Master boiler (DIEMATIC iSystem) Secondary boiler (DIEMATIC iSystem or IniControl) Secondary boiler (DIEMATIC iSystem or IniControl) Cable BUS...
  • Page 52 4. Installation MCA 45 - 65 - 90 - 115 DIEMATIC iSystem - Settings to be made for this type of installation: Master boiler Parameters Access Settings to be made See ¼ "Displaying the parameters in extended "Installer" level INSTALLATION...

  • Page 53: 4.10 Electrical Diagram

    MCA 45 - 65 - 90 - 115 4. Installation 4.10 Electrical diagram 3 2 1 1 2 3 2 3 4 1 1 2 3 1 2 3 2 3 4 5 GN/YW 2 1 3 3 1 2...

  • Page 54: 4.11 Filling The System

    4. Installation MCA 45 - 65 - 90 - 115 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.

  • Page 55: Filling The Siphon

    MCA 45 - 65 - 90 - 115 4. Installation 4.11.2. Filling the siphon 1. Remove the siphon. 2. 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.

  • Page 56: Start-Up - Diematic Isystem

    5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 Start-up - DIEMATIC iSystem Control panel 5.1.1. Description of the keys AUTO Temperature setting key (heating, DHW, swimming pool) Operating mode selection key DHW override key Key to access the parameters reserved for the installer...

  • Page 57: Description Of The Display

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 5.1.2. Description of the display n 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 <...

  • Page 58: Operating Modes

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

  • Page 59: Access To The Various Browsing Levels

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem n Domestic Hot Water override A bar is displayed when a DHW override is activated: Flashing bar: Temporary override Steady bar: Permanent override < AUTO n Other information...

  • Page 60: Browsing In The Menus

    5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 n "Installer" level The information and settings in the "Installer" level can be accessed by experienced people. 1. Press key - for around 5 seconds. Before the "Installer" level is displayed, the EMISSION SUNDAY 11:45 MEASUREMENTS menu will be displayed.

  • Page 61: Check Points Before Commissioning

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 3. To select the desired parameter, turn the rotary button. 4. To modify the parameter, press the rotary button. CURRENT PROG.B To go back to the previous display, press the key j .

  • Page 62: Gas Circuit

    5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 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.
  • Page 63 MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 4. Turn on the boiler using the on/off switch. C002366-B 5. The first time the boiler is powered up, the #LANGUAGE menu is displayed. Select the desired language by turning the rotary button.

  • Page 64: Gas Settings

    5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 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).
  • Page 65 MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 3. In the main display, press key - . The menu EMISSION MEASUREMENTS is displayed on the screen. SUNDAY 11:45 If an automatic vent cycle is running, it is not possible to TEMP.: 68°...

  • Page 66: Setting The Air/Gas Ratio (Part Load)

    5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 5.4.3. 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.

  • Page 67: Checks And Adjustments After Commissioning

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 8. If necessary, adjust the gas/air ratio using the adjusting screw (B). control and setting values for gas H (G20) at low speed Boiler type Setting value...

  • Page 68: Setting The Parameters Specific To The Installation

    5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 5.5.2. Setting the parameters specific to the installation 1. Access the "installer" level: Press key - for around 5 seconds. 2. Select the menu #SYSTEM. SUNDAY 11:45 Turn the rotary button to scroll through the menus or TEMP.: 68°...
  • Page 69 MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem "Installer" level - #SYSTEM menu Parameter Adjustment range Description Factory setting Customer setting Small capacity tank BS60 Large capacity tank Use as a domestic loop pump (1)(3)

  • Page 70: Naming The Circuits And Generators

    5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 Influence of the parameter setting CT.TEL on the I.TEL contact CT.TEL I.TEL: I.TEL contact closed I.TEL contact open The antifreeze mode is active on all boiler circuits.

  • Page 71: Setting The Heating Curve

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 3. Select the circuit or generator you wish to rename. "Installer" level - #NAMES OF THE CIRCUITS menu Parameter Description Name given by the customer Circuit A CIRC.
  • Page 72 5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 3. Select the parameter HEAT.CURV..BUILD.INERTIA CIRC.CURVE B CIRC.CURVE C SCREED DRYING < AUTO C002316-D-04 4. To modify the value directly, turn the rotary button. To modify the value by displaying the curve, press key f .

  • Page 73: Finalizing Work

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

  • Page 74: Reading Out Measured Values

    5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 Reading out measured values The various values measured by the appliance are displayed in the #MEASURES menu. 1. To access "user" level: Press the > key. 2. To select the #MEASURES menu.

  • Page 75: Changing The Settings

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 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.
  • Page 76 5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 "User" level - #SETTING menu Parameter Adjustment range Description Factory setting Customer setting 15 to 30 °C Used to set the outside temperature above 22 °C SUM/WIN which heating will be shut down.

  • Page 77: Professional" Settings

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 5.7.3. "Professional" settings 1. Access the "installer" level: Press key - for around 5 seconds. 2. To set the following parameters: SUNDAY 11:45 Turn the rotary button to scroll through the menus or TEMP.: 68°...
  • Page 78 5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 "Installer" level - #SECONDARY LIMITS menu Parameter Adjustment range Description Factory setting OFF, 20 to 90 °C Curve base temperature in Daytime mode (Circuit C) (1)(2) HCZP D C OFF, 20 to 90 °C...
  • Page 79 MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem "Installer" level - #SECONDARY INSTAL.P menu Parameter Adjustment range Description Factory Customer setting setting 0 to 10 Influence of room sensor C ROOM INFL. C See comments below...
  • Page 80 5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 "Installer" level - #SECONDARY INSTAL.P menu Parameter Adjustment range Description Factory Customer setting setting Interruption of pool heating and reheating TOTAL TOTAL PRIORITY DHW during domestic hot water production.
  • Page 81 MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem n 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.
  • Page 82 5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 n 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.

  • Page 83: Configuring The Network

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 5.7.4. Configuring the network 1. Access the "installer" level: Press key - for around 5 seconds. 2. Select the menu #NETWORK. SUNDAY 11:45 Turn the rotary button to scroll through the menus or TEMP.: 68°...
  • Page 84 5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 n Connecting appliances in cascade It is possible, in a cascade configuration, to enlist generators and/or VMs as slaves. Proceed as follows: 1. Set CASCADE to YES by pressing the rotary button and then turning and pressing it again to confirm.
  • Page 85 MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 7. Select NUMB.ELEMENTS.NETWORK. This screen summarises the elements in the network recognised by the system. Press j to go back to the previous list. NB.NETWORK ELEMENTS GENE: 2, 5, VM: 29, <...
  • Page 86 5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 4. Enlist the various InOne units that have to abide by the scenario and confirm by pressing the rotary button. "Integrate the differents InOneactors. Press on the button to finish"...
  • Page 87 MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 230V LEARN ? "An external devicetries to connect, do you want to authorize it?" 230V < AUTO C002422-B-04 2. Press the LEARN key and the control key used to pilot the scenario.
  • Page 88 5. Start-up - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 5. Choose the desired scenario by turning the rotary button and then confirm. HOLIDAYS FUNCTION : "Function of the scenario" Scenarios available Description Heating according to the time programme AUTO <...

  • Page 89: Return To The Factory Settings

    MCA 45 - 65 - 90 - 115 5. Start-up - DIEMATIC iSystem 5.7.5. Return to the factory settings To reset the appliance, proceed as follows: 1. Press key C , > and j simultaneously for 4 seconds. The menu 4"...

  • Page 90: Start-Up - Inicontrol

    6. Start-up - IniControl MCA 45 - 65 - 90 - 115 Start-up - IniControl Control panel 6.1.1. Description of the keys SERVICE °C°Fh barPsi °C % rpm kW uA x10 l/min " " " Return button j, Escape G or Manual reset t...

  • Page 91: Description Of The Display

    MCA 45 - 65 - 90 - 115 6. Start-up - IniControl 6.1.2. Description of the display n Key functions Back to the previous level without saving the modifications made SERVICE °C°Fh Manual reset barPsi °C % rpm Central heating function: kW uA Access to the max.

  • Page 92: Check Points Before Commissioning

    6. Start-up - IniControl MCA 45 - 65 - 90 - 115 n System pressure Pressure indicator: SERVICE The symbol is displayed next to the installation's pressure value. If no water pressure sensor is connected, -.- °C°Fh barPsi °C appears on the display...

  • Page 93: Gas Circuit

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

  • Page 94: Putting The Appliance Into Operation

    6. Start-up - IniControl MCA 45 - 65 - 90 - 115 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 1.

  • Page 95: Gas Settings

    MCA 45 - 65 - 90 - 115 6. Start-up - IniControl 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. Gas settings 6.4.1.

  • Page 96: Setting The Air/Gas Ratio (Part Load)

    6. Start-up - IniControl MCA 45 - 65 - 90 - 115 3. Set the boiler to full load. Press keys A and B simultaneously. The display shows h3 . The symbol ) appears. 4. Measure the percentage of O or CO in the flue gases.

  • Page 97: Checks And Adjustments After Commissioning

    MCA 45 - 65 - 90 - 115 6. Start-up - IniControl 6. If necessary, adjust the gas/air ratio using the adjusting screw (B). control and setting values for gas H (G20) at low speed Boiler type Setting value Checking value MCA 45 4,8 ±...

  • Page 98: Finalizing Work

    6. Start-up - IniControl MCA 45 - 65 - 90 - 115 n Heating curve without BCT Maximum temperature of the circuit P1 C° Water temperature in the circuit for an outside temperature of 0°C DAY set point on the circuit S1...

  • Page 99: Reading Out Measured Values

    MCA 45 - 65 - 90 - 115 6. Start-up - IniControl Reading out measured values 6.6.1. Reading out measured values The following current values can be read off the information menu 4 5t = State. 4 5v = Sub-status.
  • Page 100 6. Start-up - IniControl MCA 45 - 65 - 90 - 115 The current values can be read as follows: 1. Press the two f keys simultaneously. The symbol Q flashes. 2. Confirm using key S . 5t is displayed, alternating with the current status 3 (for example).

  • Page 101: Readout From The Hour Counter And Percentage Of Successful Starts

    MCA 45 - 65 - 90 - 115 6. Start-up - IniControl 6.6.2. Readout from the hour counter and percentage of successful starts 1. Press the two keys f simultaneously and then key [+] until the symbol \ flashes on the menu bar.

  • Page 102: Changing The Settings

    6. Start-up - IniControl MCA 45 - 65 - 90 - 115 State 5t Sub-status 5v Burner stop 40 Burner off 41 Post ventilation 42 Close flue gas damper/external gas valve 43 Recirculation protection 44 Stop fan Boiler stop (End of heat demand)
  • Page 103 MCA 45 - 65 - 90 - 115 6. Start-up - IniControl Parameter Description Adjustment range Factory setting Minimum fan speed (Heating+DHW) Natural gas H (G20) (x100 rpm) Propane (G31) (x100 rpm) Minimum fan speed (offset) Do not modify Start speed...
  • Page 104 6. Start-up - IniControl MCA 45 - 65 - 90 - 115 Parameter Description Adjustment range Factory setting Anti-freezing protection temperature -8 to 10 °C Charging priority 0 = Interruption of heating during domestic hot water production 1 = Not used...

  • Page 105: Modification Of The Installer-Level Parameters

    MCA 45 - 65 - 90 - 115 6. Start-up - IniControl Instruction set outlet temperature (°C) Power input signal (V) - DC 10 V M001679-A Voltage at input Boiler temperature / Boiler output If the input voltage is less than VMIN/OFF 0-10V, the boiler is off.

  • Page 106: Setting The Maximum Heat Input For Central Heating Operation

    6. Start-up - IniControl MCA 45 - 65 - 90 - 115 1. Press the two keys f simultaneously and then key [+] until the symbol - flashes on the menu bar. 2. Select the fitter menu using the ® key. c0de appears on the display.

  • Page 107: Return To The Factory Settings "Reset Param

    MCA 45 - 65 - 90 - 115 6. Start-up - IniControl 6.7.4. Return to the factory settings "Reset Param" 1. Press the two keys f simultaneously and then key [+] until the symbol - flashes on the menu bar.

  • Page 108: Switching Off The Appliance

    7. Switching off the appliance MCA 45 - 65 - 90 - 115 Switching off the appliance Installation shutdown CAUTION Do not switch off the boiler. If the central heating system is not used for a long period, we recommend activating the HOLIDAYS mode.

  • Page 109: Checking And Maintenance

    MCA 45 - 65 - 90 - 115 8. Checking and maintenance Checking and maintenance General instructions WARNING Maintenance operations must be done by a qualified engineer. An annual inspection is compulsory. Only original spare parts must be used. 4 Have the flues swept at least once a year or more, depending on the regulations in force in your country.

  • Page 110: Control Panel Inicontrol

    8. Checking and maintenance MCA 45 - 65 - 90 - 115 DIEMATIC iSystem - EMISSION MEASUREMENTS menu Generator Function available Description Values displayed Generator name OFF normal operation °C BOILER TEMP. µA CURRENT WIND SPEED °C BACK TEMP Operating at minimum output °C...

  • Page 111: Maintenance Message

    MCA 45 - 65 - 90 - 115 8. Checking and maintenance 8.3.1. Maintenance message The boiler incorporates a function that can be used to display a maintenance message. To set the parameters for this function, proceed as follows: 1. Access the "After Sales" level: Hold key - down until #PARAMETERS is displayed.

  • Page 112: Installer's Contact Details

    8. Checking and maintenance MCA 45 - 65 - 90 - 115 8.3.2. Installer's contact details To call up the installer's telephone number when maintenance is necessary, proceed as follows: 1. Access the "After Sales" level: Hold key - down until #PARAMETERS is displayed.

  • Page 113: Checking The Ionisation Current

    MCA 45 - 65 - 90 - 115 8. Checking and maintenance If necessary, top up the water level in the heating system (recommended hydraulic pressure between 1,5 and 2 bar). 8.4.2. Checking the ionisation current Check the ionisation current at full load and low load. The value is stable after 1 minute.

  • Page 114: Checking The Automatic Air Vent

    8. Checking and maintenance MCA 45 - 65 - 90 - 115 4. Set the boiler to part load. ¼ See chapter: "Setting the air/gas ratio (Part load)", page The boiler is now operating on part load. Measure the percentage of CO and compare this value with the checking values given.

  • Page 115: Checking The Siphon

    MCA 45 - 65 - 90 - 115 8. Checking and maintenance 5. Tilt the control box forwards by opening the holding clips located at the sides. T001991-A 6. Check whether there is any water in the small hose on the automatic air vent.

  • Page 116: Checking The Burner And Cleaning The Heat Exchanger

    8. Checking and maintenance MCA 45 - 65 - 90 - 115 8.4.7. Checking the burner and cleaning the heat exchanger CAUTION During inspection and maintenance operations, always replace all gaskets on the parts removed. 1. Remove the air inlet flue on the venturi.

  • Page 117: Specific Maintenance Operations

    MCA 45 - 65 - 90 - 115 8. Checking and maintenance Specific maintenance operations If the standard inspection and maintenance operations have revealed the necessity to carry out additional maintenance work, proceed as follows, depending on the nature of the work: 8.5.1.

  • Page 118: Replacing The Non-Return Valve

    8. Checking and maintenance MCA 45 - 65 - 90 - 115 8.5.2. Replacing the non-return valve Replace the nonreturn valve when faulty or when the maintenance kit contains one. To do this, proceed as follows: 1. Remove the air inlet flue on the venturi.

  • Page 119: Assembling The Boiler

    MCA 45 - 65 - 90 - 115 8. Checking and maintenance 8.5.3. Assembling the boiler 1. Follow the procedure in reverse to re-assemble all of the components. CAUTION During inspection and maintenance operations, always replace all gaskets on the parts removed.

  • Page 120: Troubleshooting

    9. Troubleshooting MCA 45 - 65 - 90 - 115 Troubleshooting Anti-hunting This display only concerns boilers with the DIEMATIC iSystem control panel. When the boiler is in "Anti-short-cycle" operating mode, the symbol "?" flashes. This is a normal operating mode. When the restart temperature is reached, operation will be guaranteed.
  • Page 121 MCA 45 - 65 - 90 - 115 9. Troubleshooting Code Messages Description Checking / solution The PSU PCB is incorrectly Parameter error on the PSU PCB BL.PSU ERROR configured DIEMATIC iSystem: Set the type of generator again in the menu #CONFIGURATION (Refer to the original rating plate) ¼...
  • Page 122 9. Troubleshooting MCA 45 - 65 - 90 - 115 Code Messages Description Checking / solution Gas pressure too low Incorrect setting of the gas pressure switch on the SCU PCB BL.GAS PRESS Check that the gas valve is fully opened...

  • Page 123: Message History

    MCA 45 - 65 - 90 - 115 9. Troubleshooting Code Messages Description Checking / solution Floor drying is active Floor drying is underway. Heating on the circuits not concerned is FL.DRY.B XX shut down. DAYS XX DAYS = Number of days' floor drying remaining.

  • Page 124: Control Panel Inicontrol

    9. Troubleshooting MCA 45 - 65 - 90 - 115 4. Select a message to consult the information pertaining to it. BL INPUT OPEN M21 28/08/2008 - 13h32 NUMBER OF CASE OUTSIDE TEMP. 1.0 °C OUTLET TEMP.B 12.0°C < AUTO C002382-A-04 9.3.2.

  • Page 125: Faults (Code Type Lxx Or Dxx)

    MCA 45 - 65 - 90 - 115 9. Troubleshooting n Reading the memorised messages 1. Press the two keys f simultaneously and then key [+] until the symbol c flashes on the menu bar. 2. Select the installers menu using the key S . c0de appears on the display.

  • Page 126: Control Panel Diematic Isystem

    9. Troubleshooting MCA 45 - 65 - 90 - 115 9.4.1. Control panel DIEMATIC iSystem 1. Make a note of the code displayed. The code is important for the correct and rapid diagnosis of the type of failure and for any technical assistance that may be SUNDAY 11:45 needed.
  • Page 127 MCA 45 - 65 - 90 - 115 9. Troubleshooting Code Faults Cause Description Checking / solution of the error The boiler flow sensor has Bad connection DEF.OUTLET S. short-circuited Check the wiring between the PCU PCB and the sensor...
  • Page 128 9. Troubleshooting MCA 45 - 65 - 90 - 115 Code Faults Cause Description Checking / solution of the error The return temperature Bad connection BACK S.FAILURE sensor has short-circuited Check the wiring between the PCU PCB and the sensor...
  • Page 129 MCA 45 - 65 - 90 - 115 9. Troubleshooting Code Faults Cause Description Checking / solution of the error Difference between the flow Sensor fault DEP-RET<MIN and return temperatures Check the Ohmic value of the sensor insufficient Replace the sensor if necessary...
  • Page 130 9. Troubleshooting MCA 45 - 65 - 90 - 115 Code Faults Cause Description Checking / solution of the error BURNER FAILURE PCU 5 burner start-up failures Absence of ignition arch Check the wiring between the PCU PCB and the...
  • Page 131 MCA 45 - 65 - 90 - 115 9. Troubleshooting Code Faults Cause Description Checking / solution of the error The flame went out more No ionization current I-CURRENT FAIL than 5 times in 24 hours Purge the gas supply to remove air...
  • Page 132 9. Troubleshooting MCA 45 - 65 - 90 - 115 Code Faults Cause Description Checking / solution of the error Sensor fault flow circuit B Bad connection OUTL S.B FAIL. Sensor fault flow circuit C OUTL S.C FAIL. ¼ See...
  • Page 133 MCA 45 - 65 - 90 - 115 9. Troubleshooting Code Faults Cause Description Checking / solution of the error Communication failure Bad connection MC COM.FAIL between the SCU PCB and Check the link and the connectors the boiler radio module...

  • Page 134: Deletion Of Sensors From The Memory In The Pcb

    9. Troubleshooting MCA 45 - 65 - 90 - 115 Code Faults Cause Description Checking / solution of the error Communication failure The V3V module is switched off IOBL.3WV C DEF between the SCU PCB and Check that the 3WV module is powered up (Green...

  • Page 135: Deleting The Iobl 3Wv Modules From The Memory In The Pcb

    MCA 45 - 65 - 90 - 115 9. Troubleshooting n Control panel DIEMATIC iSystem 4 Press key ? repeatedly until "Do you want to delete this sensor?" is displayed. 4 Select YES by turning the rotary button and press to confirm.

  • Page 136: Control Panel Inicontrol

    9. Troubleshooting MCA 45 - 65 - 90 - 115 3. The list of the last 10 errors is displayed. AUX1.SENS.FAIL 21/10 COM.IOBL FAIL. 02/09 COM.IOBL FAIL. 26/08 < AUTO C002274-D-04 4. Select an error to consult the information pertaining to it.

  • Page 137: Parameter And Input/Output Check (Mode Tests)

    MCA 45 - 65 - 90 - 115 9. Troubleshooting Parameter and input/output check (mode tests) 9.6.1. Control panel DIEMATIC iSystem Use the following menus to target the cause of a malfunction. 1. Access the "After Sales" level: Hold key - down until #PARAMETERS is displayed.
  • Page 138 9. Troubleshooting MCA 45 - 65 - 90 - 115 #PARAMETERS menu Parameter Description Water pressure in the installation PRESSURE Water temperature in the storage tank STOR.TANK.TEMP Temperature of the system flow water if multi-generator (1)(2) SYSTEM TEMP. Water temperature in the bottom of the DHW tank (1)(2) T.DHW BOTTOM...

  • Page 139: Control Panel Inicontrol

    MCA 45 - 65 - 90 - 115 9. Troubleshooting #TEST INPUTS menu Parameter Status OK Description Version of the PCU PCB parameters VERS.PARAM PCU Presence of a remote control A R.CTRL A No remote control A Presence of a remote control B R.CTRL B...
  • Page 140 9. Troubleshooting MCA 45 - 65 - 90 - 115 Control system sequence Status OK Sub-status Operation Open gas valve (external) Fan start-up The fan switches to the burner start-up speed Check RL signal (Function not active) Burner on switch request...

  • Page 141: Spare Parts

    MCA 45 - 65 - 90 - 115 10. Spare parts 10 Spare parts 10.1 General When it is observed subsequent to inspection or maintenance work that a component in the boiler needs to be replaced, use only original spare parts or recommended spare parts and equipment.

  • Page 142: Casing

    10. Spare parts MCA 45 - 65 - 90 - 115 10.2.1. Casing 1003 1001 1005 1002 EV 90520-1 T002923-B 06/09/2010 - 300024755-001-A...

  • Page 143: Heat Exchanger And Burner - Mca 45

    MCA 45 - 65 - 90 - 115 10. Spare parts 10.2.2. Heat exchanger and burner - MCA 45 2017 2022 2019 2016 2021 2001 2020 2014 2025 2001 2013 2047 2005 2004 2015 2010 2023 2012 2003 2024 2011...

  • Page 144: Heat Exchanger And Burner - Mca 90/115

    10. Spare parts MCA 45 - 65 - 90 - 115 10.2.3. Heat exchanger and burner - MCA 65 2017 2047 2001 2014 2019 2013 2016 2021 2025 2004 2020 2015 2010 2005 2017 2003 2033 2030 2024 2026 2006...

  • Page 145: Heat Exchanger And Burner - Mca 90/115

    MCA 45 - 65 - 90 - 115 10. Spare parts 10.2.4. Heat exchanger and burner - MCA 90/115 2047 2019 2017 2021 2020 2025 2001 2016 2013 2014 2004 2033 2030 2015 2010 2029 2027 2005 2031 2017 2026...

  • Page 146: Fan - Mca 90

    10. Spare parts MCA 45 - 65 - 90 - 115 10.2.5. Fan - MCA 45/65 3014 3007 3001 3008 3009 3010 3002 3006 3005 3011 3003 3012 3004 3013 EV 90520-3 T002925-B 06/09/2010 - 300024755-001-A...
  • Page 147 MCA 45 - 65 - 90 - 115 10. Spare parts 10.2.6. Fan - MCA 90 3014 3001 3007 3008 3009 3010 3006 3002 3003 3016 3015 3011 3005 3012 3013 EV 90522-3 T002937-A 06/09/2010 - 300024755-001-A...
  • Page 148 10. Spare parts MCA 45 - 65 - 90 - 115 10.2.7. Fan - MCA 115 3014 3007 3001 3008 3009 3002 3018 3017 3016 3010 3015 3006 3011 3003 3005 3012 3013 EV 90523-3 T002943-C 06/09/2010 - 300024755-001-A...

  • Page 149: Control Panel

    MCA 45 - 65 - 90 - 115 10. Spare parts 10.2.8. Control panel 4023 4022 4020 4023 4021 4024 4008 4007 4011 4012 4013 4005 4014 4007 4002 4006 4018 4015 4019 4001 4004 4009 4017 4010 4015 EV 90520-4...

  • Page 150: Spare Parts List

    10. Spare parts MCA 45 - 65 - 90 - 115 10.2.9. Spare parts list Markers Code no. Description Part MCA 45 MCA 65 MCA 90 MCA 115 Casing 1001 S101575 Front casing 1002 S101612 Top cover (Control panel) 1003...
  • Page 151 MCA 45 - 65 - 90 - 115 10. Spare parts Markers Code no. Description Part MCA 45 MCA 65 MCA 90 MCA 115 2032 S100895 Endpiece M7x1 2033 S101570 Silicone hose 8x2x740 2037 S101558 Siphon 2038 S14254 Screw 4,2x9,5...
  • Page 152 10. Spare parts MCA 45 - 65 - 90 - 115 Markers Code no. Description Part MCA 45 MCA 65 MCA 90 MCA 115 4004 S6778 6,30 glass fuse A slow 4004 S43562 3,15 glass fuse A slow 4005 S101619...
  • Page 153 MCA 45 - 65 - 90 - 115 10. Spare parts 06/09/2010 - 300024755-001-A...
  • Page 154 10. Spare parts MCA 45 - 65 - 90 - 115 06/09/2010 - 300024755-001-A...
  • Page 156 All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. 06/09/2010 DE DIETRICH THERMIQUE 57, rue de la Gare F- 67580 MERTZWILLER - BP 30...

  • Page 157: User Guide

    Ireland Innovens Pro MCA 45 - 65 - 90 - 115 User Guide 300024756-001-A...
  • Page 158 Contents Introduction ....................4 Used symbols ............4 Abbreviations ............4 General ..............5 1.3.1 Manufacturer's liability ..........5 1.3.2 Installer's liability .............5 1.3.3 User's liability ............5 Certifications ............6 Safety instructions and recommendations ..........7 Safety instructions ..........7 Recommendations ..........8 Description ....................9 Operating principle ..........9 3.1.1 Gas/air setting ............9 3.1.2 Combustion .............9...
  • Page 159 Contents 4.3.8 Setting an annual clock .........25 Installation shutdown .........27 Frost protection ..........28 Operating the appliance - IniControl ............29 Putting the appliance into operation ....29 Reading out measured values ......29 Changing the settings ........30 5.3.1 Description of the parameters .......30 5.3.2 Modification of the user-level parameters .....31 5.3.3...
  • Page 160 Technical characteristics ................50 Technical characteristics ........50 Energy savings ..................51 Energy-saving advice .........51 Recommendations ..........51 Warranty ....................52 10.1 General ..............52 10.2 Warranty terms ...........52 06/09/2010 - 300024756-001-A...

  • Page 161: Introduction

    MCA 45 - 65 - 90 - 115 1. Introduction Introduction 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.

  • Page 162: General

    1. Introduction MCA 45 - 65 - 90 - 115 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.

  • Page 163: Certifications

    MCA 45 - 65 - 90 - 115 1. Introduction 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...

  • Page 164: Safety Instructions And Recommendations

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

  • Page 165: Recommendations

    MCA 45 - 65 - 90 - 115 2. Safety instructions and recommendations Recommendations WARNING Only qualified professionals are authorised to work on the appliance and the instalation. 4 Regularly check the water pressure in the installation (minimum pressure 0,8 bar, recommended pressure between 1,5 and 2 bar).

  • Page 166: Description

    3. Description MCA 45 - 65 - 90 - 115 Description Operating principle 3.1.1. Gas/air setting The casing fitted to the boiler is also used as an air box. Air is sucked in by the fan and gas injected into the venturi by the fan intake. The...

  • Page 167: Main Parts

    MCA 45 - 65 - 90 - 115 3. Description 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...

  • Page 168: Description Of The Display

    3. Description MCA 45 - 65 - 90 - 115 Keys on which the function varies as and when selections are made Rotary setting button: Turn the rotary button to scroll through the menus or modify a value Press the rotary button to access the menu selected or confirm a value modification 3.3.2.
  • Page 169 MCA 45 - 65 - 90 - 115 3. Description n 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...

  • Page 170: Browsing In The Menus

    3. Description MCA 45 - 65 - 90 - 115 n Domestic Hot Water override A bar is displayed when a DHW override is activated: Flashing bar: Temporary override Steady bar: Permanent override < AUTO n Other information The symbol is displayed when domestic hot water...

  • Page 171: Control Panel Inicontrol

    MCA 45 - 65 - 90 - 115 3. Description 5. To modify the parameter, turn the rotary button. 6. To confirm, press the rotary button. CURRENT PROG.C "Choice of the timeprogram applied C" To cancel, press key h .

  • Page 172: Description Of The Display

    3. Description MCA 45 - 65 - 90 - 115 f [Menu] keys Press keys C and D simultaneously 3.4.2. Description of the display n Key functions Back to the previous level without saving the modifications made SERVICE °C°Fh Manual reset barPsi °C...
  • Page 173 MCA 45 - 65 - 90 - 115 3. Description n Flame output level Low output level 0 - 25 % SERVICE Average output level 25 - 50 % °C°Fh High output level 50 - 75 % barPsi °C % rpm...

  • Page 174: Operating The Appliance - Diematic Isystem

    4. Operating the appliance - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 Operating the appliance - DIEMATIC iSystem Putting the appliance into operation 1. Check the water pressure in the installation shown on the control panel display.
  • Page 175 MCA 45 - 65 - 90 - 115 4. Operating the appliance - DIEMATIC iSystem "User" level - #MEASURES menu Parameter Description Unit Outside temperature °C OUTSIDE TEMP. Room temperature of circuit A °C ROOMTEMP. A Room temperature of circuit B °C...

  • Page 176: Changing The Settings

    4. Operating the appliance - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 Changing the settings 4.3.1. Setting the set point temperatures To set the various heating, DHW and swimming pool temperatures, proceed as follows: 1. Press the C key.

  • Page 177: Selecting The Operating Mode

    MCA 45 - 65 - 90 - 115 4. Operating the appliance - DIEMATIC iSystem 4.3.2. Selecting the operating mode To select an operating mode, proceed as follows: 1. Press the MODE key. 2. To select the desired parameter, turn the rotary button.

  • Page 178: Forcing Domestic Hot Water Production

    4. Operating the appliance - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 4.3.3. Forcing domestic hot water production To force domestic hot water production, proceed as follows: 1. Press the r key. 2. To select the desired parameter, turn the rotary button.

  • Page 179: Setting The Time And Date

    MCA 45 - 65 - 90 - 115 4. Operating the appliance - DIEMATIC iSystem 4.3.5. Setting the time and date 1. To access "user" level: Press the > key. 2. To select the #TIME .DAY menu. SUNDAY 11:45 Turn the rotary button to scroll through the menus or modify a value.

  • Page 180: Customising A Timer Programme

    4. Operating the appliance - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 4. Assign the desired timer programme (P1 to P4) to the circuit with the rotary button. 4.3.7. Customising a timer programme 1. To access "user" level: Press the > key.
  • Page 181 MCA 45 - 65 - 90 - 115 4. Operating the appliance - DIEMATIC iSystem 8. To define the timer ranges for the comfort mode and reduced mode: 06:00 Turn the rotary button to the left until 0:00 is displayed. The first segment of the graphic bar for the timer programme flashes.

  • Page 182: Setting An Annual Clock

    4. Operating the appliance - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 "User" level - #TIME PROGRAM menu Comfort periods / Filling enabled: P2 _______________ P3 _______________ P4 _______________ _______________ Monday TIME PROG.AUX Tuesday Wednesday Thursday Friday...
  • Page 183 MCA 45 - 65 - 90 - 115 4. Operating the appliance - DIEMATIC iSystem Annual programme (Factory setting) Stop no. Circuit concerned Start date End date 01-01 01-01 01-01 01-01 01-01 01-01 01-01 01-01 01-01 01-01 01-01 01-01 01-01...

  • Page 184: Installation Shutdown

    4. Operating the appliance - DIEMATIC iSystem MCA 45 - 65 - 90 - 115 "User" level - #ANNUAL PROG menu Description Factory Adjustment range setting Selection of the circuit stopped OFF STOP N 5: OFF, A, B, AB, C, AC, BC, ABC, SU, A...

  • Page 185: Frost Protection

    MCA 45 - 65 - 90 - 115 4. Operating the appliance - DIEMATIC iSystem Frost protection CAUTION The anitfreeze protection does not function if the boiler is switched off. The integrated protection system only protects the boiler, not the installation. To protect the installation, set the appliance to HOLIDAYS mode.

  • Page 186: Operating The Appliance - Inicontrol

    5. Operating the appliance - IniControl MCA 45 - 65 - 90 - 115 Operating the appliance - IniControl Putting the appliance into operation 1. Check the water pressure in the installation shown on the control panel display. If the water pressure is lower than 0,8 bar, more water should be added.

  • Page 187: Changing The Settings

    MCA 45 - 65 - 90 - 115 5. Operating the appliance - IniControl The current values can be read as follows: 1. Press the two f keys simultaneously. The symbol Q flashes. 2. Confirm using key S . 5t is displayed, alternating with the current status 3 (for example).

  • Page 188: Modification Of The User-Level Parameters

    5. Operating the appliance - IniControl MCA 45 - 65 - 90 - 115 Parameter Description Adjustment range Factory setting 45 65 90 115 Display screen Do not modify Post-circulation of the boiler pump connected to the PCU 1 to 98 minutes...

  • Page 189: Setting The Manual Mode

    MCA 45 - 65 - 90 - 115 5. Operating the appliance - IniControl 5.3.3. Setting the manual mode In some cases it may be necessary to switch the boiler to manual operation, For example, if the controller has not yet been connected.

  • Page 190: Installation Shutdown

    5. Operating the appliance - IniControl MCA 45 - 65 - 90 - 115 1. Press the r key 1 time. 2. The symbol r and the current temperature are displayed (the temperature flashes, e.g. 60 °C). 3. Change the value by pressing the [-] or [+] key. In this example using key [-] to 55 °C.

  • Page 191: Checking And Maintenance

    MCA 45 - 65 - 90 - 115 6. Checking and maintenance Checking and maintenance General instructions The boiler does not require a lot of maintenance. Nevertheless, we recommend having the boiler inspected and serviced at regular intervals. 4 Maintenance and cleaning of the boiler must be carried out at least once a year by a qualified technician.

  • Page 192: Filling The System

    6. Checking and maintenance MCA 45 - 65 - 90 - 115 4 Carry out a visual check for the presence of any water leaks. T001507-B 4 Open and close the radiator valves several times a year (this prevents the valves from seizing up).
  • Page 193 MCA 45 - 65 - 90 - 115 6. Checking and maintenance 5. To fill with water, use a filling tube with two tap connections, a rag and a bleed key. T000845-A 6. Connect the filling tube to a (cold) water tap.
  • Page 194 6. Checking and maintenance MCA 45 - 65 - 90 - 115 9. Attach the tube to the filling/draw-off valve. Firmly tighten the nut on the filling tube. T000849-A 10.Open the filling/draw-off valve on the heating system. 11.Open the running water tap.

  • Page 195: Bleeding The Heating System

    MCA 45 - 65 - 90 - 115 6. Checking and maintenance Bleeding the heating system It is essential that you bleed any air in the calorifier, the conduits or the taps to prevent the annoying noises likely to be produced during heating or when tapping water.
  • Page 196 6. Checking and maintenance MCA 45 - 65 - 90 - 115 7. Open the bleed connection using the bleed key provided whilst keeping a rag pressed against the connection. T000217-A 8. Wait until water comes out of the bleed valve and then close the bleed connection.

  • Page 197: Draining The Installation

    MCA 45 - 65 - 90 - 115 6. Checking and maintenance Draining the installation It may become necessary to empty the water from the heating system when the radiators have to be replaced, should there be a major water leak or a risk of frost.

  • Page 198: Troubleshooting

    7. Troubleshooting MCA 45 - 65 - 90 - 115 Troubleshooting Anti-hunting This display only concerns boilers with the DIEMATIC iSystem control panel. When the boiler is in "Anti-short-cycle" operating mode, the symbol "?" flashes. This is a normal operating mode. When the restart temperature is reached, operation will be guaranteed.
  • Page 199 MCA 45 - 65 - 90 - 115 7. Troubleshooting Code Messages Description Checking / solution BL.DT OUTL RET. Maximum difference between the The water flow in the installation is insufficient flow and return temperature Check the circulation (direction, pump, valves)
  • Page 200 7. Troubleshooting MCA 45 - 65 - 90 - 115 Code Messages Description Checking / solution No flame during operation No ionization current BL.FLAME LOS Check that the gas valve is fully opened Contact the professional who takes care of maintenance of...

  • Page 201: Control Panel Diematic Isystem

    MCA 45 - 65 - 90 - 115 7. Troubleshooting 7.3.1. Control panel DIEMATIC iSystem 1. Make a note of the code displayed. The code is important for the correct and rapid diagnosis of the type of failure and for any technical assistance that may be SUNDAY 11:45 needed.
  • Page 202 7. Troubleshooting MCA 45 - 65 - 90 - 115 Code Faults Cause Description Checking / solution of the error The boiler flow sensor is on an open Bad connection DEF.OUTLET S. circuit Sensor fault Contact the professional who takes care of...
  • Page 203 MCA 45 - 65 - 90 - 115 7. Troubleshooting Code Faults Cause Description Checking / solution of the error Difference between the flow and Bad connection DEP-RET<MIN return temperatures insufficient Sensor fault Contact the professional who takes care of...
  • Page 204 7. Troubleshooting MCA 45 - 65 - 90 - 115 Code Faults Cause Description Checking / solution of the error The fan is not running at the right Bad connection FAN FAILURE speed Fan defective Contact the professional who takes care of...
  • Page 205 MCA 45 - 65 - 90 - 115 7. Troubleshooting Code Faults Cause Description Checking / solution of the error Fault external sensor Bad connection OUTSI.S.FAIL. Sensor fault Remarks: The boiler operates on BOILER Contact the professional who takes care of MAX temperature.
  • Page 206 7. Troubleshooting MCA 45 - 65 - 90 - 115 Code Faults Cause Description Checking / solution of the error Communication failure between the The V3V module is switched off IOBL.3WV B DEF SCU PCB and the V3V module The V3V module and the SCU PCB are not...
  • Page 207 MCA 45 - 65 - 90 - 115 8. Technical characteristics Technical characteristics Technical characteristics Boiler type MCA 45 MCA 65 MCA 90 MCA 115 General Flow rate setting Adjustable Modulating, Start/Stop, 0 - 10 V minimum-maximum kW 8,0 - 40,0 12,0 - 61,0 14,1 - 84,2 16,6 - 107,0 Nominal output (Pn) Heating System (80/60 °C)

  • Page 208: Energy Savings

    9. Energy savings MCA 45 - 65 - 90 - 115 Energy savings Energy-saving advice 4 Keep the room in which the boiler is installed well ventilated. 4 Do not block ventilation outlets. 4 Do not cover the radiators. Do not hang curtains in front of the radiators.

  • Page 209: Warranty Terms

    MCA 45 - 65 - 90 - 115 10. Warranty 10 Warranty 10.1 General You have just purchased one of our appliances and we thank you for the trust you have placed in our products. Please note that your appliance will provide good service for a longer period of time if it is regularly checked and maintained.
  • Page 212 All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. 06/09/2010 DE DIETRICH THERMIQUE 57, rue de la Gare F- 67580 MERTZWILLER - BP 30...

This manual is also suitable for:

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