DeDietrich Innovens MCA 15 Installation And Service Manual Download Page 122

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Faults

Code Cause

of the
error

Description

Checking / solution

BL OPEN FAIL

L39

PCU

The

inlet opened for a short

time

Bad connection

Check the wiring

External cause

Check the device connected to the

contact

Parameter incorrectly set

Check the parameter

IN.BL

TEST.HRU.FAIL

L40

PCU

HRU/URC unit test error

Bad connection

Check the wiring

External cause

Suppress the external cause

Parameter incorrectly set

Check the parameters

DEF.WATER MIS.

L250

PCU

The water pressure is too low Hydraulic circuit incorrectly vented

Water leak

Measurement error

Top up with more water if necessary

Reset the boiler

MANOMETRE FAIL L251

PCU

Pressure gauge fault

Wiring problem

The manometer is defective

Sensor pcb defective

Check the wiring between the PCU PCB and the

pressure gauge

Check whether the pressure gauge has been

correctly fitted

Replace the pressure gauge if need be

OUTL S.B FAIL.
OUTL S.C FAIL.

D03
D04

SCU

Sensor fault flow circuit B

Sensor fault flow circuit C
Remarks:

The circuit pump is running.

The 3-way valve motor on the

circuit is no longer powered

and can be adjusted manually.

Bad connection

Check whether the sensor is connected:

See chapter: "Deletion of sensors from the

memory in the PCB", page 123

Check the link and the connectors

Check that the sensor has been correctly fitted

Sensor fault

Check the Ohmic value of the sensor

Replace the sensor if necessary

OUTSI.S.FAIL.

D05

SCU

Fault external sensor
Remarks:

The boiler operates on

BOILER MAX

temperature.

The valve setting is no longer

ensured but monitoring the

maximum temperature of the

circuit after the valve is

ensured.

Valves may be manually

operated.

Reheating the domestic hot

water remains ensured.

Bad connection

Check whether the sensor is connected:

See chapter: "Deletion of sensors from the

memory in the PCB", page 123

Check the link and the connectors

Check that the sensor has been correctly fitted

Sensor fault

Check the Ohmic value of the sensor

Replace the sensor if necessary

8. Troubleshooting

MCA 15 - MCA 25 MCA 25/28 MI

120

29/04/2010 - 300022146-001-B

Summary of Contents for Innovens MCA 15

Page 1: ...Innovens EN Wall hung gas condensing boilers MCA 15 MCA 25 MCA 25 28 MI Installation and Service Manual 300022146 001 B...

Page 2: ...de bepalingen van de onderstaande EEG richtlijnen is are in conformity with the following EEC directives den Bestimmungen der nachfolgenden EG Richtlinien entspricht entsprechen r pond r pondent aux...

Page 3: ...mmendations 9 3 Technical description 11 3 1 General description 11 3 2 Main parts 11 3 3 Operating principle 12 3 3 1 Skeleton Diagrams 12 3 3 2 Shunt pump 12 3 3 3 Water flow rate 13 3 4 Technical c...

Page 4: ...erminal blocks 32 4 10 5 Connecting a direct heating circuit 34 4 10 6 Connecting a direct heating circuit and a domestic hot water tank 35 4 10 7 Connecting two circuits and a domestic hot water tank...

Page 5: ...nguage selection 80 5 7 2 Calibrating the sensors 80 5 7 3 Professional settings 82 5 7 4 Configuring the network 88 5 7 5 Returning to the factory settings 96 6 Switching off the appliance 97 6 1 Ins...

Page 6: ...bleshooting 112 8 1 Messages Code type Bxx or Mxx 112 8 2 Message history 114 8 3 Faults Code type Lxx or Dxx 115 8 3 1 Deletion of sensors from the memory in the PCB 123 8 3 2 Deleting the IOBL 3WV m...

Page 7: ...29 04 2010 300022146 001 B 5...

Page 8: ...nstructions 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 c...

Page 9: ...g 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 foll...

Page 10: ...visions 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 don...

Page 11: ...eaks 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...

Page 12: ...liance 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 Modifi...

Page 13: ...MI Heating and micro storage domestic hot water production 3 2 Main parts 1 Flue gas discharge pipe 2 Casing air box 3 Outlet for measuring combustion gases 4 Mixer pipe 5 Heating flow hose 6 ir intak...

Page 14: ...s a fuction of T The graph shows the manometric height at various outputs The parameters MIN PUMP SPEED and MAX PUMP SPEED are used to modify the pump settings If flow noise can be heard in the system...

Page 15: ...tting kW 16 7 27 8 22 3 Nominal input Qnw DHW System Hi minimum maximum kW 5 2 28 0 Factory setting kW 28 0 Nominal input Qnw DHW System Hs minimum maximum kW 5 8 31 1 Factory setting kW 31 1 Heating...

Page 16: ...oltage VAC 230 230 230 Power consumption Full load maximum W 101 116 124 Factory setting W 63 76 76 Power consumption Part load maximum W 25 25 25 Power consumption Standby maximum W 4 4 4 Electrical...

Page 17: ...side sensor Outlet sensor circuit B C Domestic hot water sensor Boiler sensor Return sensor 90 C 1266 100 C 952 110 C 726 MCA 15 MCA 25 MCA 25 28 MI 3 Technical description 29 04 2010 300022146 001 B...

Page 18: ...on of the installation Boiler options Control system options Description package Description package Stand off frame HR39 RX12 cable AD134 Pipework kit for stand off frame HR40 TELCOM 2 voice remote m...

Page 19: ...r FM52 Kit for connection between MCA and SR130 EA137 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 num...

Page 20: ...rials 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 con...

Page 21: ...ve outlet pipe 25 mm j Condensates discharge 25 mm z Heating circuit return G x Domestic cold water inlet G Gas Gaz Gas connection G y Domestic hot water outlet G Heating circuit flow G T001116 B 67 1...

Page 22: ...xis is perfectly horizontal 2 Drill 3 holes with a of 10 mm Additional holes are provided in case one or other of the standard locating holes prevents the correct location of the plugs 3 Put the plugs...

Page 23: ...2 Fit a fibre gasket to each joint on the valve plate 3 Position the boiler above the plumbing fixtures plate and locate it against the mounting frame Gently lower the boiler 4 Tighten the valve nuts...

Page 24: ...no impurities n 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 fro...

Page 25: ...using synthetic pipes follow the manufacturer s connection instructions 4 6 4 Connecting the expansion vessel The boiler is fitted as standard with an 12 litre expansion vessel If the water volume is...

Page 26: ...e 4 Into this insert the discharge hose from the disconnector 5 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 p...

Page 27: ...apacity To do this you should bear in mind the consumption of all domestic appliances 4 If the gas meter has too low a capacity inform the energy supply company CAUTION 4 Ensure that there is no dust...

Page 28: ...ir flue gas connection by means of concentric pipes to a horizontal terminal so called forced flue 2 Configuration C33 Air flue gas connection by means of concentric pipes to a vertical terminal roof...

Page 29: ...ncentric pipes connected to a horizontal terminal Alu or PPS 60 100 mm 12 0 3 5 4 2 80 125 mm 12 3 23 0 25 7 C33 Concentric pipes connected to a vertical terminal Alu or PPS 60 100 mm 13 0 4 9 5 5 80...

Page 30: ...of meteorological variations 4 protected from direct sunlight 4 easy to access A Recommended position B Possible position H Inhabited height controlled by the sensor Z Inhabited area controlled by the...

Page 31: ...fuse F1 230 VAC 6 3 AT Fuse rating F2 230 VAC 2 AT Fan DC 27 VDC CAUTION Keep to the polarity shown on the terminals phase L neutral N and earth A Routing of the 230 V cables B Routing of the sensor c...

Page 32: ...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 ap...

Page 33: ...B 2 1 S AMB A 2 1 S SYST TA S ECS S EXT S DEP C 2 1 2 1 2 1 2 1 2 1 S DEP B 2 1 TS C AUX C SCU SCU PCU C002299 F A Do not connect anything to the terminal block Z Optional PCB Package AD249 E Do not...

Page 34: ...proceed as follows 1 Unscrew the 2 screws under the front panel by a quarter turn 2 Remove the front panel 3 Open the holding clips located on the sides 4 Tilt the control panel forward C002325 C 2 1...

Page 35: ...ft the clip located in front of the control panel 6 Lift the control panel cover 7 Unclip the PCB cover C002327 B 5 6 6 C002330 C 7 MCA 15 MCA 25 MCA 25 28 MI 4 Installation 29 04 2010 300022146 001 B...

Page 36: ...or heating 4 Remove the bridge 4 Connect the wires from the safety thermostat to the connector R Do not connect anything to the terminal block Settings to be made for this type of installation Paramet...

Page 37: ...Do not connect anything to the terminal block Z CAUTION Do not connect anything to the Mr outlet on the terminal block The reversal valve is connected to the PCU PCB in the boiler E Connect the outsid...

Page 38: ...r this type of installation Parameters Access Settings to be made See chapter INSTALLATION Installer level SYSTEM menu EXTENDED Displaying the parameters in extended mode page 71 If a domestic hot wat...

Page 39: ...nnect anything to the terminal block Z CAUTION Do not connect anything to the Mr outlet on the terminal block The reversal valve is connected to the PCU PCB in the boiler E Connect the outside tempera...

Page 40: ...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 pa...

Page 41: ...1 2 1 2 1 2 1 S DEP B 2 1 TS C AUX C SCU PCU A Do not connect anything to the terminal block Z Connect the outside temperature sensor E Connect a safety thermostat if the heating circuit is for underf...

Page 42: ...ckage AD212 I Connect the heating pump circuit B O Connect the 3 way valve circuit B P Connect the DHW sensor Package AD212 a Connect the domestic hot water looping pump to the MAUX outlet on the AD24...

Page 43: ...C002368 H On off OT BL RL Tout Tdhw TS B A B 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 1 2 1 2 1 2 1 2 1 S DEP B 2 1 SCU PCU 4 5 6 8 7 3 2 1 9 M A Do not conne...

Page 44: ...the parameters specific to the installation page 72 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 hea...

Page 45: ...2 1 S SYST TA S ECS S EXT S DEP C 2 1 2 1 2 1 2 1 2 1 S DEP B 2 1 SCU PCU 1 3 5 7 6 8 M 4 A Connect a domestic hot water tank if the storage tank R is only used for heating Z Connect the DHW sensor P...

Page 46: ...evel SYSTEM menu PUMP 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...

Page 47: ...ting pump Circuit A E 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 R Buffer ta...

Page 48: ...HW 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 according to the outside temperature The zon...

Page 49: ...o 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 boil...

Page 50: ...g to the terminal block Z Option of connecting the electric tank with AD249 option or to E E Outlet circuit A Option of connecting the electric tank or to Z R Power control relay to the electrical res...

Page 51: ...ELEC Setting the parameters specific to the installation page 72 If the electric tank is connected to MAUX S AUX 1 Installer level SYSTEM menu DHW ELEC 1 The parameter is only displayed if INSTALLATIO...

Page 52: ...de for this type of installation Parameters Access Settings to be made See chapter INSTALLATION Installer level SYSTEM menu EXTENDED Displaying the parameters in extended mode page 71 O PUMP A 1 Insta...

Page 53: ...onfiguring the network page 88 MASTER CONTROLLER 1 Installer level SYSTEM menu ON SYSTEM NETWORK 1 Installer level SYSTEM menu ADD SLAVE 1 The parameter is only displayed if INSTALLATION parameter is...

Page 54: ...ON Configuring the network page 88 MASTER CONTROLLER 1 Installer level SYSTEM menu ON SYSTEM NETWORK 1 Installer level SYSTEM menu ADD SLAVE 1 The parameter is only displayed if INSTALLATION parameter...

Page 55: ...1 2 3 4 PSU X9 2 3 4 5 X91 BK BK BK BK 1 2 4 5 FAN 1 BK BK 1 2 X117 P 230V 50Hz L N SCU C X2 1 3 2 BL BR GN YW X1 1 2 3 BR BL GN YW X3 4 3 2 1 5 BR BL BR BL GN YW 3 1 4 2 X51 S DIS P Power supply DV I...

Page 56: ...0 5 Recommendations 4 Reduce the quantity of oxygen in the heating circuit to the minimum 4 Limit the annual quantity of water added to the circuit to 5 of the total water volume in the installation 4...

Page 57: ...e product for existing installations Sentinel X500 Antifreeze and inhibitor Other manufacturers propose similar products CAUTION 4 Check the compatibility of the product with the materials used in the...

Page 58: ...e disconnector valves During filling air can escape from the system via the automatic air vent 3 Close the disconnector valves when the manometer indicates a pressure of 2 bar 4 Check the tightness of...

Page 59: ...staller E Keys on which the function varies as and when selections are made F Rotary setting button 4 Turn the rotary button to scroll through the menus or modify a value 4 Press the rotary button to...

Page 60: ...med j Back to the previous level ESC Back to the previous level without saving the modifications made t Manual reset n Flame output level C002705 A The whole symbol flashes The burner starts up but th...

Page 61: ...d when a HOLIDAY override antifreeze is activated 4 Flashing symbol Holiday mode programmed 4 Steady symbol Holiday mode active m Manual mode n System pressure bar Pressure indicator The symbol is dis...

Page 62: ...l 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 n User level The information and settings in the User l...

Page 63: ...ettings in the After Sales level can be accessed by initiates 1 Press key for around 10 seconds Before the After Sales level is displayed the Installer level will be displayed Hold key down until PARA...

Page 64: ...press key j2 times It is possible to use the and keys instead of the rotary button bar 1 1 2 2 r c STD t v 0 2 4 6 8 10 12 14 16 18 22 24 20 pb AUTOxc r j L g m MEASURES CHOICE TIME PROG TIME PROGRAM...

Page 65: ...r 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 contro...

Page 66: ...as valve unit in the boiler 6 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 t...

Page 67: ...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 th...

Page 68: ...20 For operation on another group of gases carry out the following operations 4 Set the air gas ratio Setting the air gas ratio Full load page 67 Setting the air gas ratio Part load page 69 4 Set the...

Page 69: ...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 Front panel removed T001581 A 1 1 2 2 r c S...

Page 70: ...l and setting values for gas L G25 at full load Boiler type Setting value Checking value O2 CO2 O2 CO2 MCA 15 4 9 0 4 8 8 0 2 4 9 0 5 8 8 0 3 MCA 25 4 9 0 4 8 8 0 2 4 9 0 5 8 8 0 3 MCA 25 28 MI 4 9 0...

Page 71: ...rotary button until PMIN is displayed The part load is set If an automatic vent cycle is running it is not possible to perform these operations 6 Measure the percentage of O2 or CO2 in the flue gases...

Page 72: ...4 0 2 5 9 0 4 8 4 0 2 O2 CO2 control and setting values for gas L G25 at low speed Boiler type Setting value Checking value O2 CO2 O2 CO2 MCA 15 5 6 0 4 8 4 0 2 5 6 0 4 8 4 0 2 MCA 25 5 6 0 4 8 4 0 2...

Page 73: ...nel 10 Turn the setting screw B on the gas valve unit by 6 turns clockwise 11 Follow the procedure in reverse to re assemble all of the components 5 5 Checks and adjustments after commissioning 5 5 1...

Page 74: ...nt 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 elect...

Page 75: ...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 resis...

Page 76: ...he 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 selec...

Page 77: ...econd 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 7 characters To move from one character to another turn...

Page 78: ...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 1 1 2 2 r c STD t v 0 2 4 6 8 1...

Page 79: ...ally 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 i...

Page 80: ...factory These factory settings are suitable for the most common heating systems For other systems and situations the parameters can be modified 5 6 Reading out measured values The various values measu...

Page 81: ...ircuit A C BACK TEMP 2 Temperature of the boiler return water C WIND SPEED 2 Fan rotation speed rpm POWER 2 Instantaneous boiler output 0 Burner off or running at minimum output CURRENT A 2 Ionization...

Page 82: ...Spanish NEDERLANDS Display in Dutch P CCK Display in Russian POLSKY Display in Polish T RK Display in Turkish 5 7 2 Calibrating the sensors 1 To access user level Press the key 2 To select the SETTIN...

Page 83: ...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 2 3 5 0 to 5 0 C Room offset on circuit B Is used to...

Page 84: ...ximum fan speed setting in domestic hot water See table below START SP 1 1000 5000 rpm Optimum start up speed setting See table below MAX PUMP SPEED 1 20 100 Maximum pump speed See table below MIN PUM...

Page 85: ...de Circuit C OFF HCZP N C 1 2 OFF 20 to 90 C Curve base temperature in Nighttime mode Circuit C OFF 1 The parameter is only displayed if INSTALLATION parameter is set to EXTENDED 2 The parameter can b...

Page 86: ...he lower temperature is maintained Night mode See comments below DEC STOP The boiler is stopped Night mode See comments below IN 0 10V OFF ON Activating the control at 0 10 V See comments below OFF VM...

Page 87: ...aulic connection allows a Risk of overheating in the direct circuit PRIM TEMP DHW 50 to 90 C Boiler temperature setting if producing domestic hot water 75 C LEG PROTEC The anti legionella function act...

Page 88: ...rying Y Heating temperature setting C For example A STOP DRYING TEMP 47 C Z START DRYING TEMP 20 C R NUMB DAYS DRY T Normal regulation End of drying Y Heating temperature setting C Every day at midnig...

Page 89: ...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 control imposes an instruction set temperature on the boile...

Page 90: ...rallel 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...

Page 91: ...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 th...

Page 92: ...the network recognised by the system Press j to go back to the previous list 1 1 2 2 r c STD t v 0 2 4 6 8 10 12 14 16 18 22 24 20 pb AUTOxc r j L g m NB NETWORK ELEMENTS GENE 2 5 VM 29 4 C002411 B 0...

Page 93: ...ULT ON Default active DEFAULT OFF No active default INPUT TEL ON Telephone input active INPUT TEL OFF Telephone input not active 4 Enlist the various InOne units that have to abide by the scenario and...

Page 94: ...pressing to confirm 1 1 2 2 r c STD t v 0 2 4 6 8 10 12 14 16 18 22 24 20 pb AUTOxc r j L g m INTER STAGE TIMER 3WW PLC InOne SCENARIO REMOVE DEVICE 4 C002419 B 04 1 1 2 2 r c t v 0 2 4 6 8 10 12 14...

Page 95: ...V bar 1 1 2 2 r c STD t v 0 2 4 6 8 10 12 14 16 18 22 24 20 pb AUTOxc r j M g m An external devicetries to connect do you want to authorize it LEARN YES 2 Press the LEARN key and the control key used...

Page 96: ...Y 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...

Page 97: ...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 1 1 2 2 r c STD t v 0...

Page 98: ...nerator 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 af...

Page 99: ...er shuts down and the heating pump continues to run for a short time CAUTION 4 The anitfreeze protection does not function if the boiler is switched off 4 The integrated protection system only protect...

Page 100: ...and maintenance operations page 100 4 Carry out specific maintenance operations if necessary See chapter Specific maintenance operations page 106 7 2 Chimney sweep instructions CAUTION Have the flues...

Page 101: ...dification For a detailed explanation of menu browsing refer to the chapter Browsing in the menus page 62 3 To set the following parameters After Sales level REVISION menu Parameter Adjustment range D...

Page 102: ...confirm a value modification For a detailed explanation of menu browsing refer to the chapter Browsing in the menus page 62 3 To set the following parameters After Sales level SUPPORT menu Parameter D...

Page 103: ...menu MEASURES See chapter Reading out measured values page 78 7 4 4 Checking the transfer capacity If the transfer capacity is noticably low temperature too low and or flow rate less than 6 2 l min cl...

Page 104: ...asurements 3 Set the boiler to full load See chapter Setting the air gas ratio Full load page 67 The boiler is now operating at full load Measure the percentage of CO2 and compare this value with the...

Page 105: ...the front panel by a quarter turn and remove the panel 5 Tilt the control box forwards by opening the holding clips located at the sides 6 Check whether there is any water in the small hose on the au...

Page 106: ...ny water in the end of the flow pipe on the safety valve 3 If any leaks are detected replace the safety valve 7 4 9 Checking the siphon 1 Remove the siphon and clean it 2 Fill the siphon with water 3...

Page 107: ...again without the top cleaning brush on the endpiece 9 Check using a mirror for example whether any dust can still be seen If so hoover it up 10 The burner does not require any maintenance it is self...

Page 108: ...the ionisation ignition electrode 3 Replace the ionisation ignition electrode 7 5 2 Cleaning the plate exchanger domestic hot water end and the water filter cartridge Depending on the water quality a...

Page 109: ...at exchanger side heating circuit 7 Unscrew the 2 hexagonal socket screws located to the right and left of the plate exchanger 8 Slightly turn the plate exchanger and carefully remove it from the boil...

Page 110: ...sure that the silencer is left in place 6 Remove the domestic water cartridge 7 Rinse the water filter cartridge with tap water and if need be clean it with a descaling product e g citric acid with a...

Page 111: ...the hydrobloc 6 Remove the heating return hose on the right side of the hydrobloc and not on the heat exchanger side heating circuit 7 Unplug the actuator 8 Remove the clip holding the 3 way valve in...

Page 112: ...nit 3 Disconnect the connector located under the fan 4 Release the 2 clips holding the fan mixing elbow unit in place on the heat exchanger 5 Completely remove the fan mixing elbow unit 6 Replace the...

Page 113: ...the siphon with clean water up to the mark 3 Put the siphon back in place CAUTION Mount the vent hose above the siphon 4 Carefully open the main water valve fill the installation vent it and if need b...

Page 114: ...B02 The increase in flow temperature has exceeded its maximum limit The water flow in the installation is insufficient 4 Check the circulation direction pump valves 4 Check the water pressure 4 Check...

Page 115: ...CONFIG B19 The boiler has not been configured The PSU PCB has been changed 4 Set the type of generator again in the menu CONFIGURATION Refer to the original rating plate BL COM SU B21 Communication e...

Page 116: ...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 62 3 The list of the last 10...

Page 117: ...g between the PCU and PSU PCBs PSU PCB faulty 4 Replace the PSU PCB PSU PARAM FAIL L01 PCU The safety parameters are incorrect Bad connection 4 Check the wiring between the PCU and PSU PCBs PSU PCB fa...

Page 118: ...pump valves 4 Check the water pressure 4 Check the cleanliness of the heat exchanger STB OUTLET L05 PCU Boiler temperature too high Bad connection 4 Check the wiring between the PCU PCB and the senso...

Page 119: ...ss of the heat exchanger STB BACK L09 PCU Return temperature too high Bad connection 4 Check the wiring between the PCU PCB and the sensor 4 Check that the SU PCB is correctly in place 4 Check that th...

Page 120: ...eating system 4 Check the circulation direction pump valves 4 Check the water pressure 4 Check the cleanliness of the heat exchanger BURNER FAILURE L14 PCU 5 burner start up failures Absence of igniti...

Page 121: ...been correctly fitted Sensor fault 4 Check the Ohmic value of the sensors 4 Replace the sensor if necessary Water circulation direction reversed 4 Check the circulation direction pump valves I CURRENT...

Page 122: ...r fault flow circuit B Sensor fault flow circuit C Remarks The circuit pump is running The 3 way valve motor on the circuit is no longer powered and can be adjusted manually Bad connection 4 Check whe...

Page 123: ...Fault room temperature sensor A Fault room temperature sensor B Fault room temperature sensor C Note The circuit concerned operates without any influence from the room sensor Bad connection 4 Check w...

Page 124: ...PCU PCB is powered up green LED on or flashing 4 Change the PCU PCB IOBL 3WV B DEF D29 SCU Communication failure between the SCU PCB and the V3V module The V3V module is switched off 4 Check that the...

Page 125: ...ted using key r The tank is no longer protected If A tank without Titan Active System is connected to the boiler Check that the Titan Active System simulation connector delivered with package AD212 is...

Page 126: ...led explanation of menu browsing refer to the chapter Browsing in the menus page 62 3 The list of the last 10 errors is displayed 4 Select an error to consult the information pertaining to it bar 1 1...

Page 127: ...calculated by the boiler BOILER T 1 Measurement of the boiler flow sensor CALCULATED T A Calculated temperature for circuit A CALCULATED T B 2 Calculated temperature for circuit B CALCULATED T C 2 Ca...

Page 128: ...uit B P CIRC C 1 ON NO Stop start pump circuit C HW PUMP 1 ON NO Stop start domestic hot water pump AUX CIRC ON NO On Off auxiliary outlet 3WV B 1 REST No command OPEN Opening 3 way valve circuit B CL...

Page 129: ...ol applies to a single circuit MONO or if it must be transmitted to a group of circuits ALL CIRC TYPE Generator type Refer to the original rating plate AUTODETECTION OFF ON System reset if error L38 i...

Page 130: ...s 36 Burner lit and ascending modulation to guarantee a correct ionization current 37 Heating Burner lit and minimum modulation after a burner start up lasting 30 seconds DHW production Burner lit and...

Page 131: ...nt in the boiler needs to be replaced use only original spare parts or recommended spare parts and equipment To order a spare part give the reference number shown on the list 9 2 Spare parts Spare par...

Page 132: ...9 2 1 Casing T001332 B EV 117641 1 1001 1002 1006 1 9 Spare parts MCA 15 MCA 25 MCA 25 28 MI 130 29 04 2010 300022146 001 B...

Page 133: ...12 2013 2014 2034 2005 2005 2020 2021 2010 2010 2032 2032 2034 2015 2033 2050 2011 2001 2011 2002 2023 2019 2018 2017 2022 2006 2037 2036 2038 2039 2030 2003 2009 2030 2028 2029 2025 2026 2007 2004 2...

Page 134: ...9 2 3 Fan T001334 B 3 3005 3007 3004 3002 3011 3012 3003 3008 3001 3008 3006 3010 EV 117641 3 9 Spare parts MCA 15 MCA 25 MCA 25 28 MI 132 29 04 2010 300022146 001 B...

Page 135: ...EV 117641 4 4022 4021 4023 4017 4018 4024 4030 4019 4022 4005 4011 4010 4014 4004 4001 4002 4003 4 4012 4016 4008 4008 4007 4025 4026 4027 4028 4015 4009 4006 MCA 15 MCA 25 MCA 25 28 MI 9 Spare parts...

Page 136: ...31 5016 5023 5023 5022 5017 5010 5018 5007 5019 5032 5033 5002 5045 5055 5039 5025 5011 5051 5030 5029 5027 5028 5052 5x 5053 5x 5012 5012 5013 5013 5017 5007 5017 5032 5017 5031 5029 5008 5014 5006 5...

Page 137: ...5010 5022 5009 5023 5017 5003 5018 5001 5002 5051 5027 5028 5023 5017 5031 5016 5004 5019 5032 5008 5017 5029 5017 5031 5032 5016 5014 5018 5043 5046 5037 5045 5056 5050 5038 5044 5038 5039 5041 5047...

Page 138: ...S100888 Gasket between heat exchanger and condensate collector 219 mm 1 2021 S100892 Gasket between flue gas discharge and condensate collector 1 2022 S100855 Leak proofing ring 80 mm 5 2023 S100850 P...

Page 139: ...59372 Draught diverter 1 4011 S100861 Oval sealing gasket 5 4012 S62185 Screw KB 30x8 10 4014 S101251 Control panel 1 4015 S48950 Screw M4x10 50 4016 S101005 HL temperature sensor 1 4017 S100862 SCU g...

Page 140: ...d return connection 18 mm 1 5032 S100808 Connection part 13 mm 1 5033 S100827 Connection for hydrobloc 2S MCA 15 MCA 25 1 5037 S101046 Attachment clip Kit 1 5038 S100875 Valve G3 4 disconnector 1 5039...

Page 141: ...MCA 15 MCA 25 MCA 25 28 MI 9 Spare parts 29 04 2010 300022146 001 B 139...

Page 142: ...9 Spare parts MCA 15 MCA 25 MCA 25 28 MI 140 29 04 2010 300022146 001 B...

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DeDietrich Innovens MCA 15, Installation And Service Manual

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