Related Manuals for DeDietrich MCA 15
Summary of Contents for DeDietrich MCA 15
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Page 1: User Guide
Ireland Innovens Wall-hung gas condensing boilers MCA 15 - MCA 25 MCA 25/28 MI User Guide 300024159-001-B... -
Page 2: Table Of Contents
Contents Introduction ....................4 Symbols used ............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 3 Contents Installation shutdown .........24 Frost protection ..........24 Checking and maintenance ..............25 General instructions ...........25 Periodic checks ..........25 Filling the system ..........26 Bleeding the heating system ......27 Draining the installation ........29 Troubleshooting ..................31 Anti-hunting ............31 Messages (Code type Bxx or Mxx) ....31 Faults (Code type Lxx or Dxx) ......33 Technical specifications ................39 Technical specifications ........39...
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Page 5: Introduction
MCA 15 - MCA 25 MCA 25/28 MI 1. Introduction Introduction Symbols used In these instructions, various danger levels are employed to draw the user's attention to particular information. In so doing, we wish to safeguard the user's safety, obviate hazards and guarantee correct operation of the appliance. -
Page 6: General
1. Introduction MCA 15 - MCA 25 MCA 25/28 MI General 1.3.1. Manufacturer's liability Our products are manufactured in compliance with the requirements of the various applicable European Directives. They are therefore delivered with [ marking and all relevant documentation. -
Page 7: Certifications
MCA 15 - MCA 25 MCA 25/28 MI 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 8: Safety Instructions And Recommendations
2. Safety instructions and recommendations MCA 15 - MCA 25 MCA 25/28 MI 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 9: Recommendations
MCA 15 - MCA 25 MCA 25/28 MI 2. Safety instructions and recommendations Recommendations WARNING Only qualified professionals are authorised to work on the appliance and the installation. 4 Regularly check the water pressure in the installation (minimum pressure 0,8 bar, recommended pressure between 1,5 and 2 bar). -
Page 10: Description
3. Description MCA 15 - MCA 25 MCA 25/28 MI 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 11: Main Parts
MCA 15 - MCA 25 MCA 25/28 MI 3. Description Main parts Flue gas discharge pipe Casing/air box Outlet for measuring combustion gases Mixer pipe Heating flow hose Air intake silencer Box for the control PCBs Combined venturi and gas valve unit... -
Page 12: Control Panel
3. Description MCA 15 - MCA 25 MCA 25/28 MI Control panel 3.3.1. 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 13: Description Of The Display
MCA 15 - MCA 25 MCA 25/28 MI 3. Description 3.3.2. 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 14: Operating Modes
3. Description MCA 15 - MCA 25 MCA 25/28 MI 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 15: Browsing In The Menus
MCA 15 - MCA 25 MCA 25/28 MI 3. Description 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 production is running. - Page 16 3. Description MCA 15 - MCA 25 MCA 25/28 MI 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 .
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Page 17: Operating The Boiler
MCA 15 - MCA 25 MCA 25/28 MI 4. Operating the boiler Operating the boiler Commissioning the boiler 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 18 4. Operating the boiler MCA 15 - MCA 25 MCA 25/28 MI 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 ROOMTEMP. B Room temperature of circuit C °C...
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Page 19: Changing The Settings
DAY TEMP. C Desired room temperature in reduced periods on circuit NIGHT TEMP. C 5 to 30 °C 16 °C MCA 15 - MCA 25: 10 to 80 °C Desired domestic hot water temperature in the DHW 55 °C WATER TEMP. circuit MCA 25/28 MI : 40 to 65 °C... -
Page 20: Selecting The Operating Mode
4. Operating the boiler MCA 15 - MCA 25 MCA 25/28 MI 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 21: Forcing Domestic Hot Water Production
MCA 15 - MCA 25 MCA 25/28 MI 4. Operating the boiler 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 22: Setting The Time And Date
4. Operating the boiler MCA 15 - MCA 25 MCA 25/28 MI 4.3.5. Setting the time and date 1. To access user level: Press the > key. 2. Select the menu #TIME .DAY. SUNDAY 11:45 Turn the rotary button to scroll through the menus or modify a value. -
Page 23: Customising A Timer Programme
MCA 15 - MCA 25 MCA 25/28 MI 4. Operating the boiler 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 24 4. Operating the boiler MCA 15 - MCA 25 MCA 25/28 MI 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.
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Page 25: Installation Shutdown
MCA 15 - MCA 25 MCA 25/28 MI 4. Operating the boiler User level - Menu #TIME PROGRAM Comfort periods / Filling enabled: P2 _______________ P3 _______________ P4 _______________ _______________ Monday TIME PROG.AUX Tuesday Wednesday Thursday Friday Saturday Sunday Installation shutdown CAUTION Do not switch off the boiler. -
Page 26: Checking And Maintenance
5. Checking and maintenance MCA 15 - MCA 25 MCA 25/28 MI 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 27: Filling The System
MCA 15 - MCA 25 MCA 25/28 MI 5. Checking and maintenance 4 Open and close the radiator valves several times a year (this prevents the valves from seizing up). 4 Clean the outside of the boiler using a damp cloth and a light detergent. -
Page 28: Bleeding The Heating System
5. Checking and maintenance MCA 15 - MCA 25 MCA 25/28 MI 6. Open the disconnector valves. T001618-A 7. Close the disconnector valves when the manometer indicates a pressure of 2 bar. 2 bar When water is added, air gets into the heating system. - Page 29 MCA 15 - MCA 25 MCA 25/28 MI 5. Checking and maintenance 5. Wait around 10 minutes until the radiators are cold. T000185-A 6. Bleed the radiators. Start with the lower floors. T000854-A 7. Open the bleed connection using the bleed key provided whilst keeping a rag pressed against the connection.
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Page 30: Draining The Installation
5. Checking and maintenance MCA 15 - MCA 25 MCA 25/28 MI 8. Wait until water comes out of the bleed valve and then close the bleed connection. CAUTION The water may still be hot. 9. Switch on the boiler. A vent cycle of a duration of around 3 minutes is carried out automatically. - Page 31 MCA 15 - MCA 25 MCA 25/28 MI 5. Checking and maintenance 4. Connect an evacuation hose to the plug located at the lowest level. Place the end of the hose in a discharge sump or in a place where the water discharged from the valve can not do any damage.
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Page 32: Troubleshooting
6. Troubleshooting MCA 15 - MCA 25 MCA 25/28 MI Troubleshooting Anti-hunting When the boiler is in Anti-short-cycle operating mode, the symbol ? flashes. 1. Press the "?" key. The message Operation assured when the restart temperature will be reached is displayed. When the restart temperature is reached, operation will be guaranteed. - Page 33 MCA 15 - MCA 25 MCA 25/28 MI 6. Troubleshooting Code Messages Description Checking / solution The RL inlet on the PCU PCB Parameter error BL.RL OPEN terminal block is open Contact the professional who takes care of maintenance of...
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Page 34: Faults (Code Type Lxx Or Dxx)
6. Troubleshooting MCA 15 - MCA 25 MCA 25/28 MI Code Messages Description Checking / solution A service is required The date programmed for the service has been reached REVISION If the symbol ? flashes, press key ?. The installer's contact details are displayed. - Page 35 MCA 15 - MCA 25 MCA 25/28 MI 6. Troubleshooting Code Faults Cause Description Checking / solution of the fault PSU PCB not connected Bad connection PSU FAIL PSU PCB faulty Contact the professional who takes care of maintenance of the appliance...
- Page 36 6. Troubleshooting MCA 15 - MCA 25 MCA 25/28 MI Code Faults Cause Description Checking / solution of the fault Return temperature too high Bad connection STB BACK Sensor fault Contact the professional who takes care of maintenance of the appliance...
- Page 37 MCA 15 - MCA 25 MCA 25/28 MI 6. Troubleshooting Code Faults Cause Description Checking / solution of the fault Detection of a parasite flame Ionization current present when there should not PARASIT FLAME be a flame Ignition transformer defective...
- Page 38 6. Troubleshooting MCA 15 - MCA 25 MCA 25/28 MI Code Faults Cause Description Checking / solution of the fault Circuit B flow sensor fault Bad connection OUTL S.B FAIL. Circuit C flow sensor fault Sensor fault OUTL S.C FAIL.
- Page 39 MCA 15 - MCA 25 MCA 25/28 MI 6. Troubleshooting Code Faults Cause Description Checking / solution of the fault Communication failure between the SCU and PCU PCBs PCU COM. FAIL Contact the professional who takes care of maintenance of the appliance...
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Page 40: Technical Specifications
7. Technical specifications MCA 15 - MCA 25 MCA 25/28 MI Technical specifications Technical specifications Boiler type MCA 15 MCA 25 MCA 25/28 MI General Flow rate setting Adjustable Modulating, Start/Stop, 0 - 10 V Nominal output (Pn) minimum-maximum kW... -
Page 41: Energy Savings
MCA 15 - MCA 25 MCA 25/28 MI 8. Energy savings 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 42: Warranty
9. Warranty MCA 15 - MCA 25 MCA 25/28 MI Warranty 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 43 MCA 15 - MCA 25 MCA 25/28 MI 9. Warranty 23/08/2011 - 300024159-001-B...
- Page 44 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. 23/08/2011 DE DIETRICH THERMIQUE 57, rue de la Gare F- 67580 MERTZWILLER - BP 30...