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DeDietrich Innovens MCA 25/28 BIC, Installation And Service Manual

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DeDietrich Innovens MCA 25/28 BIC Installation And Service Manual Download Page 31

4.10.2.

Recommendations

WARNING

4

Only qualified professionnals may carry out electrical

connections, always with the power off.

4

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

connections inside the control panel.

4

Earth the appliance before making any electrical

connections.

Make the electrical connections of the boiler according to:

4

The instructions of the prevailing standards.

4

The instructions on the electrical diagrams provided with the

boiler.

4

The recommendations in the instructions.

CAUTION

4

Separate the sensor cables from the 230 V cables.

4

Outside the boiler: Use 2 pipes or cable guides at

least 10 cm apart.

MCA 25/28 BIC

4. Installation

15/06/12  - 300022159-001-01

29

Summary of Contents for Innovens MCA 25/28 BIC

Page 1: ...Innovens EN Wall hung gas condensing boilers MCA 25 28 BIC Installation and Service Manual 300022159 001 01 ...

Page 2: ... voldoet voldoen aan de bepalingen van de onderstaande EEG richtlijnen is are in conformity with the following EEC directives den Bestimmungen der nachfolgenden EG Richtlinien entspricht entsprechen répond répondent aux directives CEE suivantes EEG Richtlijn 2009 142 EC toegepaste normen EEC Directive 2009 142 EC tested and examined tothe following norms EG Richtlinie 2009 142 EG verwendete Normen...

Page 3: ...2 Recommendations 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 specifications 13 3 4 1 Sensor characteristics 14 4 Installation 15 4 1 Regulations governing installation 15 4 2 Package list 15 4 2 1 Standard delivery 15 4 2 2 Accessories 15 4 3 Choice of the...

Page 4: ... 10 2 Recommendations 29 4 10 3 Position of the PCBs 30 4 10 4 Accessing the connection terminal blocks 31 4 10 5 Connecting a direct heating circuit 33 4 10 6 Connecting two heating circuits 34 4 10 7 Hot water storage tank connection Type PS 35 4 10 8 Pool connection 37 4 10 9 Connecting the options 38 4 11 Electrical diagram 40 4 12 Filling the system 41 4 12 1 Water treatment 41 4 12 2 Filling...

Page 5: ...gs 68 5 7 4 Configuring the network 75 5 7 5 Return to the factory settings 78 6 Switching off the boiler 80 6 1 Installation shutdown 80 6 2 Frost protection 80 7 Checking and maintenance 81 7 1 General instructions 81 7 2 Chimney sweep instructions 81 7 3 Customising maintenance 82 7 3 1 Maintenance message 82 7 3 2 Contact details of the professional for After Sales Support 83 7 4 Standard insp...

Page 6: ... Troubleshooting 94 8 1 Anti hunting 94 8 2 Messages Code type Bxx or Mxx 94 8 3 Message history 97 8 4 Faults Code type Lxx or Dxx 97 8 4 1 Deletion of sensors from the memory in the PCB 106 8 5 Failure history 106 8 6 Parameter and input output check mode tests 107 8 6 1 Control system sequence 110 9 Spare parts 111 9 1 General 111 9 2 Spare parts 111 9 2 1 Casing 112 9 2 2 Heat exchanger and bu...

Page 7: ...15 06 12 300022159 001 01 5 ...

Page 8: ...ON Risk of material damage Signals important information Signals a referral to other instructions or other pages in the instructions 1 2 Abbreviations 4 3CE Collective conduit for sealed boiler 4 DHW Domestic hot water 4 Hi Lower heating value LHV Nett 4 Hs Higher heating value HHV Gross 4 PPS Polypropylene hardly inflammable 4 PCU Primary Control Unit PCB for managing burner operation 4 PSU Param...

Page 9: ... Installer s liability The installer is responsible for the installation and inital start up of the appliance The installer must respect the following instructions 4 Read and follow the instructions given in the manuals provided with the appliance 4 Carry out installation in compliance with the prevailing legislation and standards 4 Perform the initial start up and carry out any checks necessary 4...

Page 10: ...se instructions must also be observed For all provisions and Directives referred to in these instructions it is agreed that all addenda or subsequent provisions will apply at the time of installation WARNING Installation of the appliance must be done by a qualified engineer in accordance with prevailing local and national regulations 1 4 4 Factory test Before leaving the factory each boiler is set...

Page 11: ...ssible leaks and seal them immediately 2 2 Recommendations WARNING 4 Installation and maintenance of the boiler must be carried out by a qualified professional in compliance with prevailing local and national regulations 4 When working on the boiler always disconnect the boiler from the mains and close the main gas inlet valve 4 After maintenance or repair work check all installations to ensure th...

Page 12: ...he appliance must never be removed or covered and must remain legible during the entire lifespan of the appliance Immediately replace damaged or illegible instructions and warning stickers Modifications Modifications may only be made to the boiler after the written permission of De Dietrich Thermique to do so 2 Safety instructions and recommendations MCA 25 28 BIC 10 15 06 12 300022159 001 01 ...

Page 13: ...lue gas discharge pipe 2 Casing air box 3 Flue gas measuring point 4 Mixer pipe 5 Heating flow hose 6 Air intake silencer 7 Box for the control PCBs 8 Combined venturi and gas valve unit 9 Flow end hydroblock 10 Safety valve outlet pipe 11 Siphon 12 Control panel 13 Tank drainage valve 14 Expansion vessel DHW circuit 15 Tank hydroblock 16 Shunt pump DHW circuit 17 Shunt pump Heating circuit 18 Ret...

Page 14: ...culating pump is controlled by the control unit based on ΔT The graph shows the manometric height at various outputs H Manometric height central heating circuit Q Water flow 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 it is possible to reduce the maximum pump speed with the parameter MAX PUMP SPEED First of all vent...

Page 15: ...em Hi minimum maximum kW 5 2 29 3 Factory setting kW 29 3 Nominal input Qnw DHW System Hs minimum maximum kW 5 8 32 6 Factory setting kW 32 6 Heating efficiency under full load Hi 80 60 C 96 3 Heating efficiency under full load Hi 50 30 C 102 0 Heating efficiency under partial load Hi Return temperature 60 C 96 1 Heating efficiency under partial load EN 92 42 Return temperature 30 C 108 0 Data on ...

Page 16: ...t load maximum W 21 Power consumption Standby maximum W 4 Electrical protection index IPX4D Other characteristics Weight empty Total kg 70 Mounting 1 kg 61 Acoustic level at 1 metre dB A 44 1 Front panel removed 3 4 1 Sensor characteristics Outside sensor Temperature in C 20 16 12 8 4 0 4 8 12 16 20 24 Resistance in Ω 2392 2088 1811 1562 1342 1149 984 842 720 616 528 454 Outlet sensor circuit B C ...

Page 17: ...ble depending on the configuration 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 monitoring module AD152 Pipe cover HR42 Flow sensor AD199 Flue gas thermostat HR43 DHW sensor AD212 adapter 80 125 HR38 Optional PCB for 3 way valve AD249 adapter 80 80 ...

Page 18: ...air intake opening 4 To ensure adequate accessibility to the appliance and facilitate maintenance leave enough space around the boiler WARNING 4 Fix the appliance to a solid wall capable of bearing the weight of the appliance when full of water and fully equipped 4 It is forbidden to store inflammable products and materials in the boiler room or close to the boiler even temporarily CAUTION 4 The b...

Page 19: ...iler is installed in a closed casing respect the minimum dimensions given in the diagram opposite Also allow openings to obviate the following hazards 4 Accumulation of gas 4 Heating of the box Minimum cross section of the openings S1 S2 150 cm2 T001899 B min 700 min 600 50 2 min 250 min 250 100 min 1 MCA 25 28 BIC 4 Installation 15 06 12 300022159 001 01 17 ...

Page 20: ...afety valve outlet pipe Ø 25 mm j Condensates discharge Ø 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 T001962 A 217 345 415 282 349 416 481 900 600 498 375 140 140 150 257 5 4 Installation MCA 25 28 BIC 18 15 06 12 300022159 001 01 ...

Page 21: ...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 in place 4 Secure the mounting frame to the wall using the 3 hexagonal headed screws provided for this purpose 4 5 Positioning the boiler 1 Remove the protective caps from all of the hydraulic inlets and outlets on the boiler T001869 A 1 2 3 4 T001870 A...

Page 22: ...evailing regulations the codes of practice and the recommendations in these instructions 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 hemp flux 4 Thoroughly flush the installation until the water runs clear and shows no impurities Installing the boiler in existing inst...

Page 23: ...let pipe to the heating flow connection 2 Connect the heating water return pipe to the heating return connection 4 The boiler is factory fitted with a safety valve mounted on the left hydroblock CAUTION 4 The heating pipe must be mounted in accordance with prevailing provisions 4 6 3 Connection of the water circuit for domestic use 1 Connect the cold water inlet pipe to the domestic cold water con...

Page 24: ... 4 3 bar safety valve 4 Average water temperature 70 C Supply temperature 80 C Return temperature 60 C 4 The filling pressure in the system is lower than or equal to the initial pressure in the expansion vessel Initial pressure of the expansion vessel Volume of the expansion vessel depending on the volume of the installation in litres 100 125 150 175 200 250 300 300 0 5 bar 4 8 6 0 7 2 8 4 9 6 12 ...

Page 25: ...harge pipe in accordance with prevailing standards 4 7 Gas connection The diameters of the pipes must be defined in accordance with the standards in force in your country g Connection by internal brazing 18 mm 1 Connect the gas inlet pipe WARNING 4 Close the main gas valve before starting work on the gas pipes 4 Before mounting check that the gas meter has sufficient capacity To do this you should...

Page 26: ...Configuration C13 x Air flue gas connection by means of concentric pipes to a horizontal terminal so called forced flue 4 Configuration C33 x Air flue gas connection by means of concentric pipes to a vertical terminal roof outlet 5 Configuration C43 x Air flue gas connection to a collective conduit for watertight boilers 3CE P system 6 Configuration C53 Air and flue gas connection separated by mea...

Page 27: ...ine the dimensions of such a system refer to the supplier of the collective conduit B23 B23P Chimney rigid or flexible duct in chimney combustive air taken from the premises PPS 80 mm Rigid duct 40 0 80 mm Flexible duct 40 0 C13 x Concentric pipes connected to a horizontal terminal Alu or PPS 60 100 mm 4 2 80 125 mm 20 0 C33 x Concentric pipes connected to a vertical terminal Alu or PPS 60 100 mm ...

Page 28: ...nd air carrying parts for tightness 4 Connection of the combustion gas exhaust directly to the buildings brick chimneys or flues is forbidden for condensation reasons 4 Always clean the ducts thoroughly in cases where lining pipes are used and or a connection of the air supply 4 It must be possible to inspect the flue or chimney 4 4 For long aluminium combustion gas exhaust pipes it is initially n...

Page 29: ...fluence 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 sensor Positions to be avoided 4 masked by a building element balcony roof etc 4 close to a disruptive heat source sun chimney ventilation grid etc 4 9 2 Connecting the outside sensor Mount t...

Page 30: ...rol unit are described in the table below Power supply voltage 230 VAC 50Hz Rating of the main 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 CAUTION The following components of the appliance are at a voltage of 230 V 4 Boiler pump Heating circuit 4 Boiler pump DHW circuit 4 Combined venturi and gas v...

Page 31: ...ore making any electrical connections Make the electrical connections of the boiler according to 4 The instructions of the prevailing standards 4 The instructions on the electrical diagrams provided with the boiler 4 The recommendations in the instructions CAUTION 4 Separate the sensor cables from the 230 V cables 4 Outside the boiler Use 2 pipes or cable guides at least 10 cm apart MCA 25 28 BIC ...

Page 32: ... 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 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 connect anything to the terminal block 4 Installation MCA 25 28 BIC 30 15 06 12 300022159 001 01 ...

Page 33: ...l blocks 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 C002326 B 4 3 3 MCA 25 28 BIC 4 Installation 15 06 12 300022159 001 01 31 ...

Page 34: ...5 Lift 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 4 Installation MCA 25 28 BIC 32 15 06 12 300022159 001 01 ...

Page 35: ...underfloor 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 Parameters Access Settings to be made See chapter INSTALLATION Installer level SYSTEM menu EXTENDED Displaying the parameters in extended mode page 56 If safety thermostat is connected to BL on the c...

Page 36: ...g to the terminal block Z CAUTION Do not connect anything to the DHW pump outlet as the reversal valve is connected to the PCU PCB in the boiler E Connect the outside temperature sensor R Connect a safety thermostat if the heating circuit is for underfloor heating 4 Remove the bridge 4 Connect the wires from the safety thermostat to the connector T Connecting an additional circuit to the AD249 opt...

Page 37: ...cuit B O Connect the 3 way valve circuit B P Do not connect anything to the terminal block 4 10 7 Hot water storage tank connection Type PS A000882 A 3 6 5 2 1 4 7 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 A Do not connect anything to the terminal block Z Connect the heating pump Circui...

Page 38: ...g the parameters specific to the installation page 57 P DHW 1 Installer level SYSTEM menu PUMP 1 The parameter is only displayed if INSTALLATION parameter is set to EXTENDED If during DHW loading the temperature of the storage tank falls below the primary DHW set point parameter PRIM TEMP DHW the boiler maintains the latter at temperature to guarantee the loading of the DHW tank The heating zone i...

Page 39: ...still be adjusted by the parameter CT TEL T Connect the primary swimming pool pump Y Do not connect anything to the terminal block Settings to be made 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 56 CIRC B Installer level SYSTEM menu SWIM P Setting the parameters spe...

Page 40: ... that is to be kept The control system only regulates the primary circuit boiler exchanger 4 Connect the primary circuit pump boiler exchanger to the MB outlet on the connection terminal block The temperature MAX CIRC B is then guaranteed during comfort periods on programme B in summer and winter alike The swimming pool can also be connected to circuit C by adding the AD249 option 4 Make the conne...

Page 41: ... monitoring module depending on its availability in your country R Connecting the BUS cascade VM T Connect the remote control Package AD254 FM52 Y Do not connect anything to the terminal block Settings to be made 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 56 O PUMP...

Page 42: ...2 3 4 PSU X9 2 3 4 5 X91 BK BK BK BK 1 2 4 5 FAN HLS 1 BK BK 1 2 X117 P 230V 50Hz L N SCU C X2 1 3 2 BL BR GN YW X1 4 2 3 BR BL GN YW X3 4 3 2 1 5 BR BL BR BL GN YW 3 1 4 2 X51 S PUMP B DIS P Power supply DV 3 way valve PS Pressure sensor SCU C control panel PCB PUMP A Shunt pump Central heating PSU Parameter storage for PCBs PCU and SU S On Off switch HLS Safety thermostat PWM PUMP Modulation sig...

Page 43: ...of the installation must comply with following characteristics Total installed heat output kW 70 70 200 200 550 550 Degree of acidity water non treated pH 7 9 7 9 7 9 7 9 Degree of acidity water treated pH 7 8 5 7 8 5 7 8 5 7 8 5 Conductivity at 25 C µS cm 800 800 800 800 Chlorides mg l 150 150 150 150 Other components mg l 1 1 1 1 Total water hardness 1 f 1 35 1 20 1 15 1 5 dH 0 5 20 0 0 5 11 2 0...

Page 44: ...escaping from the boiler 4 Mount the vent hose above the siphon 4 12 3 Filling the system CAUTION Before filling open the valves on every radiator in the installation 1 Open the cold water inlet and heating outlet valves 2 Open the disconnector valves During filling air can escape from the system via the automatic air vent T001523 B 1 2 3 4 T000181 B T001620 A T001618 A 1 2 4 Installation MCA 25 2...

Page 45: ... the disconnector valves when the manometer indicates a pressure of 2 bar 4 Check the tightness of the water connections T001619 A 2 1 2 bar T001507 B MCA 25 28 BIC 4 Installation 15 06 12 300022159 001 01 43 ...

Page 46: ...r the installer 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 access the selected menu or confirm a value modification A000866 A bar STD t 0 2 4 6 8 10 12 14 16 18 22 24 20 pb AUTOxc r j M g m A B C D E F 5 Commissioning MCA 25 28 BIC 44 15 06 12 3000221...

Page 47: ...rogrammed 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 the flame is not yet present C002704 A Part of the symbol flashes Output is increasing C002703 A Steady symbol The required output has been reached C002702 A Part of the symbol flashes Output is d...

Page 48: ...The symbol is displayed when a DAY override comfort is activated 4 Flashing symbol Temporary override 4 Steady symbol Permanent override m Reduced mode The symbol is displayed when a NIGHT override reduced is activated 4 Flashing symbol Temporary override 4 Steady symbol Permanent override g Holiday mode The symbol is displayed when a HOLIDAY override antifreeze is activated 4 Flashing symbol Holi...

Page 49: ... 4 Steady bar Permanent override n Other information r The symbol is displayed when domestic hot water production is running w Valve indicator The symbol is displayed when a 3 way valve is connected 4 x 3 way valve opens 4 c 3 way valve closes M The symbol is displayed when the pump is operating Name of the circuit for which the parameters are displayed bar STD t 0 2 4 6 8 10 12 14 16 18 22 24 20 ...

Page 50: ...s the key It is also possible to access the installer level by pressing only the key for around 5 seconds 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 SUNDAY 11 45 C002219 D 04 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 SUNDAY 11 45 C002219 D 04 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 SUNDAY 11 45...

Page 51: ...d parameter turn the rotary button 4 To modify the parameter press the rotary button To go back to the previous display press the key j 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 SUNDAY 11 45 C002219 D 04 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 SUNDAY 11 45 5 TEMP 68 C002235 F 04 bar 1 1 2 2 r c STD t v 0 2 4 6 8 10 12 14 16 18 2...

Page 52: ...plate 4 Check the gas circuit 4 Check the hydraulic circuit 4 Check the water pressure in the heating system 4 Check the electrical connections to the thermostat and the other external controls 4 Check the other connections 4 Test the boiler at full load Check the setting of the gas air ratio and if necessary correct it 4 Test the boiler at part load Check the setting of the gas air ratio and if n...

Page 53: ...e gas valves The test pressure must not exceed 60 mbar 7 Purge the gas supply pipe within the boiler by unscrewing the pressure outlet on the gas block Tighten the measurement point when the pipe has been sufficiently purged 8 Check the tightness of the gas connections in the boiler 5 2 3 Hydraulic circuit 4 Check the condensate discharge siphon it must be filled with clean water up to the mark 4 ...

Page 54: ... legionella function is activated the boiler starts to heat the water in the DHW tank as soon as the vent programme has been completed The heating time depends on the size of the DHW installation 5 4 Gas settings 5 4 1 Adapting to another gas type WARNING Only a qualified engineer may carry out the following operations The boiler is preset in the factory to operate on natural gas H G20 For operati...

Page 55: ... is displayed The full load is set 5 Measure the percentage of O2 or CO2 in the flue gases Front panel removed 6 If this rate does not match the required value correct the gas air ratio using the adjustment screw A on the gas valve unit 7 Check the flame through the flame inspection window The flame must not be detached T001581 A 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 ...

Page 56: ...Connect the flue gas analyser WARNING Ensure that the opening around the sensor is completely sealed when taking measurements 3 In the main display press key The menu EMISSION MEASURMENTS is displayed on the screen If an automatic vent cycle is running it is not possible to perform these operations 4 Turn the rotary button until PMIN is displayed The part load is set If an automatic vent cycle is ...

Page 57: ...cking value O2 CO2 O2 CO2 MCA 25 28 BIC 5 9 0 4 8 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 25 28 BIC 5 6 0 4 8 4 0 2 5 6 0 4 8 4 0 2 O2 CO2 control and setting values for propane G31 at low speed Boiler type Setting value Checking value O2 CO2 O2 CO2 MCA 25 28 BIC 5 8 0 3 9 9 0 2 5 8 0 3 9 9 0 2 Re...

Page 58: ...se to re assemble all of the components 5 5 Checks and adjustments after commissioning 5 5 1 Displaying the parameters in extended mode The display mode on the control panel is set as standard in such a way as only to show the conventional parameters It is possible to switch to extended mode by proceeding as follows 1 Access the installer level Press key for around 5 seconds 2 Select the menu SYST...

Page 59: ...loor heating 3WV SWIM P Using the circuit for pool management DIRECT Use of circuit in direct heating circuit CIRC C 1 3WV Connecting a circuit with 3 way valve For example Underfloor heating 3WV SWIM P Using the circuit for pool management DIRECT Use of circuit in direct heating circuit O PUMP A 1 2 CH PUMP A Heating pump circuit A The MA outlet is used to control the pump on circuit A CH PUMP A ...

Page 60: ...de I SYST 1 SYSTEM The inlet sensor is used to connect the common flow sensor of a cascade system SYSTEM STORAGE TANK Hot water storage tank affected to heating only DHW STRAT Using the DHW tank with 2 sensors top and bottom ST TANK DHW Hot water storage tank affected to heating and domestic hot water O TEL 1 FAILURE The telephone outlet is closed in the event of failure FAILURE REVISION The telep...

Page 61: ...let on circuit A ECS 0 1 B DHW ON or OFF contact I TEL can be used as an antifreeze activation inlet on circuit B ECS 0 1 A B DHW ON or OFF contact I TEL can be used as an antifreeze activation inlet on circuit A B ECS 0 1 C DHW ON or OFF contact I TEL can be used as an antifreeze activation inlet on circuit C ECS 0 1 A C DHW ON or OFF contact I TEL can be used as an antifreeze activation inlet on...

Page 62: ... circuits concerned 0 1 DHW The mode selected on the DHW circuit is active The antifreeze mode is active for the DHW circuit 0 1 A DHW The mode selected on the circuits is active The antifreeze mode is active on the circuits concerned 0 1 B DHW The mode selected on the circuits is active The antifreeze mode is active on the circuits concerned 0 1 A B DHW The mode selected on the circuits is active...

Page 63: ...ifreeze mode is active on the circuits concerned The mode selected on the circuits is active 0 1 A B DHW The antifreeze mode is active on the circuits concerned The mode selected on the circuits is active 0 1 C DHW The antifreeze mode is active on the circuits concerned The mode selected on the circuits is active 0 1 A C DHW The antifreeze mode is active on the circuits concerned The mode selected...

Page 64: ...ess the rotary button The name is confirmed If the name reaches 6 characters it is automatically confirmed when the last character is confirmed 5 5 4 Setting the heating curve 1 Access the installer level Press key for around 5 seconds 2 Select the menu SECONDARY INSTAL P 4 Turn the rotary button to scroll through the menus or modify a value 4 Press the rotary button to access the selected menu or...

Page 65: ...n the circuit is reached T Value of the heating curve Select the parameter CIRC CURVE When you modify the heating curve Z and R are recalculated and repositioned automatically 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 BUILD INERTIA CIRC CURVE B CIRC CURVE C SCREED DRYING 3 2 0 0 7 No a C002316 E 04 bar 1 1 2 2 r c STD t v 0 2 4 6 8 10 12 14 16 18 22 24 20 pb AUT...

Page 66: ... in the heating system to approximately 70 C 5 Shut down the boiler 6 After about 10 minutes vent the air in the heating system 7 Checking the hydraulic pressure If necessary top up the water level in the heating system recommended hydraulic pressure between 1 5 and 2 bar 8 Tick the gas category used on the data plate 9 Complete the checklist 10 Explain the operation of the installation the boiler...

Page 67: ...T C 1 Water temperature of the swimming pool on circuit C C OUTLET TEMP B 1 Temperature of the flow water in circuit B C OUTLET TEMP C 1 Temperature of the flow water in circuit C C SYSTEM TEMP 1 Temperature of the system flow water if multi generator C T DHW BOTTOM 1 Water temperature in the bottom of the DHW tank C TEMP TANK AUX 1 Water temperature in the second DHW tank connected to the AUX cir...

Page 68: ...ange Description FRANCAIS Display in French DEUTSCH Display in German ENGLISH Display in English ITALIANO Display in Italian ESPANOL Display in Spanish NEDERLANDS Display in Dutch POLSKI Display in Polish PУCCKИЙ Display in Russian TÜRK Display in Turkish 5 7 2 Calibrating the sensors 1 To access user level Press the key 2 Select the menu SETTING 4 Turn the rotary button to scroll through the menu...

Page 69: ...e room temperature has stabilised Room temperature of circuit B OFFSET ROOM B 3 4 1 5 0 to 5 0 C Room offset on circuit B Is used to set a room offset Make this setting 2 hours after switching on when the room temperature has stabilised 0 0 ANTIFR ROOM B 4 0 5 to 20 C Room temperature at which the antifreeze mode is activated on circuit B 6 C CALIBR ROOM C 4 1 2 Calibration of the room sensor on c...

Page 70: ...an speed setting in heating See table below MAX VENT DHW 1 1000 7000 rpm Maximum fan speed setting in domestic hot water See table below START RPM 1 1000 5000 rpm Optimum start up speed setting See table below MIN PUMP SPEED 1 20 100 Minimum pump speed 20 MAX PUMP SPEED 1 20 100 Maximum pump speed 60 1 The parameter is only displayed if INSTALLATION parameter is set to EXTENDED 2 The parameter is ...

Page 71: ... C Curve base temperature in Nighttime mode Circuit C OFF PRIM TEMP DHW 1 50 to 79 C Boiler temperature setting if producing domestic hot water 65 C 1 The parameter is only displayed if INSTALLATION is set to EXTENDED 2 The parameter can be set to the heating curve by pressing key f Installer level Menu PRIMARY INSTAL P 1 Parameter Adjustment range Description Factory setting Customer setting BURN...

Page 72: ...room sensor B ROOM S INFL page 74 3 CIRC CURVE C 2 0 to 4 Heating curve of the circuit C CIRC CURVE page 73 0 7 ANTICIP C 1 0 0 to 10 0 Activation and adjustment of the anticipation time ANTICIP A ANTICIP B ANTICIP C page 73 NO ROOM INFL C 1 0 to 10 Influence of room sensor C ROOM S INFL page 74 3 SCREED DRYING NO B C B C Drying the floor SCREED DRYING page 73 NO START DRYING TEMP 3 20 to 50 C Scr...

Page 73: ...ming of the shutdown of the domestic hot water pump The timing of the domestic hot water load pump shutdown prevents the boiler and the heating circuits overheating Only if a load pump is used 2 minutes ADAPT ON Automatic adaptation of the heating curves for each circuit with a room sensor with an influence of 0 ON OFF The heating curves can only be modified manually PRIORITY DHW 6 TOTAL Interrupt...

Page 74: ...c hot water pump starts up ON DHW 5 OFF The function is deactivated OFF BOILER T In DHW mode the DHW load pump starts up only if the boiler temperature is higher than the WATER TEMP set point 5 C SYST TEMP In DHW mode the DHW load pump starts up only if the system temperature is higher than the WATER TEMP set point 5 C 1 The parameter is only displayed if INSTALLATION is set to EXTENDED 2 The para...

Page 75: ...ired temperature outside temperature 0 C starting from a residual room temperature corresponding to the low nocturnal instruction Anticipation is optimised if a room sensor is connected The regulator will automatically fine set the anticipation time This function is dependent on the surplus output available in the installation n SCREED DRYING Used to force a constant flow temperature or a train to...

Page 76: ...commended 10 Room thermostat type operation 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 The circuit pump operates constantly 4 NIGHT STOP Stop Heating is shut down during reduced periods When installation antifreeze is active the reduced...

Page 77: ...he boiler is off The boiler temperature setting corresponds strictly to the 0 10 V input The secondary boiler circuits continue to operate but have no impact on the water temperature in the boiler If using the 0 10 V input and a secondary boiler circuit the external regulator providing this 0 10 V power supply must always request a temperature at least equal to the needs of the secondary circuit 5...

Page 78: ... to 30 min Time delay for starting up or shutting down generators 4 mn SLAVE NUMBER 6 2 to 10 Set the network address of the secondary generator 2 1 The menu is displayed only if the INSTALLATION parameter is set to EXTENDED 2 The parameter is only displayed if CASCADE is set to NO 3 The parameter is only displayed if CASCADE is set to ON 4 The parameter is only displayed if MASTER CONTROLLER is s...

Page 79: ...chosen Press j to go back to the previous list 7 Select NB ELEMENTS NETWORK This screen summarises the elements in 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 CASCADE MASTER CONTROLER SYSTEM NETWORK FUNCT INTER STAGE TIMER ON ON TRADITIONAL 4 a C002409 C 04 1 1 2 2 r c STD t v 0 2 4 6 8 10 12...

Page 80: ...ack to the previous list 5 Select NB ELEMENTS NETWORK This screen summarises the elements in the network recognised by the system Press j to go back to the previous list 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 RESET is displayed 2 Set the following parameters Menu RESET Choice of generator Parameter De...

Page 81: ...conds 1 Select the desired language by turning the rotary button 2 To confirm press the rotary button Français Deutsch English Italiano Espanol Nederlands Pycck Polski Türk bar 1 1 2 2 r c STD t v 0 2 4 6 8 10 12 14 16 18 22 24 20 pb xc r g m ÿ LANGUE FRANCAIS C002286 C MCA 25 28 BIC 5 Commissioning 15 06 12 300022159 001 01 79 ...

Page 82: ...own and the circulation pump continues to run for a short time 4 If the water temperature in the storage tank is less than 7 C it is reheated to its set point CAUTION 4 The antifreeze protection does not function if the appliance is switched off 4 The integrated protection system only protects the boiler not the installation To protect the installation set the appliance to HOLIDAYS mode The HOLIDA...

Page 83: ...nspection and maintenance operations page 83 4 Carry out specific maintenance operations if necessary See chapter Specific maintenance operations page 88 7 2 Chimney sweep instructions CAUTION Have the flues swept at least once a year or more depending on the regulations in force in your country Only a qualified engineer may carry out the following operations 1 Press the key 2 Check the combustion...

Page 84: ...irm a value modification For a detailed explanation of menu browsing refer to the chapter Browsing in the menus page 49 3 Set the following parameters After Sales level Menu REVISION Parameter Adjustment range Description TYPE NO Factory setting No message indicating that maintenance is necessary MANU Recommended setting Signals that maintenance is necessary on the date selected Set the date using...

Page 85: ...h the menus or modify a value 4 Press the rotary button to access the selected menu or confirm a value modification For a detailed explanation of menu browsing refer to the chapter Browsing in the menus page 49 3 Set the following parameters After Sales level Menu SUPPORT Parameter Description NAME Input the installer s name TELEPHONE NUM Input the installer s telephone number When the message REV...

Page 86: ...tion current The ionization current is displayed in the menu MEASURES See chapter Reading out measured values page 65 7 4 4 Checking the transfer capacity If the transfer capacity is particularly weak temperature too low and or flow rate less than 6 2 l min clean the plate exchanger domestic hot water end See chapter Cleaning the plate exchanger page 89 7 4 5 Checking the tightness of the flue gas...

Page 87: ...aking measurements 3 Set the boiler to full load See chapter Setting the air gas ratio Full load page 53 The boiler is now operating at full load Measure the percentage of CO2 and compare this value with the checking values given 4 Set the boiler to part load See chapter Setting the air gas ratio Part load page 54 The boiler is now operating on part load Measure the percentage of CO2 and compare t...

Page 88: ...s any water in the small hose on the automatic air vent 7 If any leaks are detected replace the air vent 7 4 8 Checking the safety valve 1 Take out the flow collector located under the boiler 2 Check whether there is any 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 si...

Page 89: ...cleaner 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 cleaning Check that there are no cracks and or other tears on the surface of the dismantled burner If this is not the case replace the burner 11 Checking the ignition electrode ionization sens...

Page 90: ...ion electrode Replace the ionization ignition electrode in the following cases 4 Ionization current 3 µA 4 Electrode worn If replacement is necessary proceed as follows 1 Remove the cable from the ionization ignition electrode on the ignition transformer 2 Unscrew the 2 screws and remove the ionization ignition electrode 3 Replace the ionization ignition electrode T001528 A 1 2 3 7 Checking and ma...

Page 91: ...ng the boiler tanks page 90 3 Remove the air vent hose above the siphon 4 Remove the siphon 5 Remove the clip holding the heating flow hose in place on the left side of the hydroblock 6 Dismantle the heating flow hose on the left side of the hydroblock and not on the heat exchanger side heating circuit 7 Unscrew the 2 hexagonal socket screws located to the right and left of the plate exchanger 8 S...

Page 92: ...water outlet 8 Unscrew the connection on the pipe that links the hydroblock to the boiler tanks 9 Remove the pipes connected to the boiler tanks 10 Remove the DHW sensors from the tanks and disconnect the cables 11 Disconnect the instrument box cable from the tanks 12 Unscrew the 4 screws located on the front and back of the boiler tanks 13 Remove the boiler tanks with the left hand section of the...

Page 93: ... side of the hydroblock 6 Remove the heating return hose on the right side of the hydroblock and not on the heat exchanger side heating circuit 7 Unplug the actuator 8 Remove the clip holding the 3 way valve in place 9 Remove the 3 way valve Lift and rotate by a quarter turn 10 Proceed as for dismantling in reverse CAUTION Be careful of the positioning cams on the 3 way valve T002639 C 3 4 5 6 2 1...

Page 94: ... valve unit 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 non return valve located between the mixing elbow and the fan 7 To re assemble perform the above actions in reverse order T002517 B 2x 6 2 X91 3 1 4 2x 5 7 Checking and maintenance MCA 25 28 B...

Page 95: ...d 2 Fill 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 be top it up with water 5 Check the seals on the gas and water connections 6 Switch the boiler back on C002434 A T001523 B MCA 25 28 BIC 7 Checking and maintenance 15 06 12 300022159 001 01 93...

Page 96: ...he code is displayed again correct the problem by following the instructions in the table below Code Messages Description Checking solution B00 BL CRC PSU The PSU PCB is incorrectly configured Parameter error on the PSU PCB 4 Set the type of generator again in the menu CONFIGURATION Refer to the original rating plate B01 BL MAX BOILER Maximum flow temperature exceeded The water flow in the install...

Page 97: ... PCB Bad connection 4 Check the wiring SCU PCB not installed in the boiler 4 Install an SCU PCB B14 BL WATER MIS The water pressure is lower than 0 8 bar Not enough water in the circuit 4 Top up the installation with water B15 BL GAS PRESS Gas pressure too low Incorrect setting of the gas pressure switch on the SCU PCB 4 Check that the gas valve is fully opened 4 Checking the gas supply pressure 4...

Page 98: ...nother date in the menu REVISION or set the parameter REVISION TYPE to OFF M05 REVISION A An A B or C service is required The date programmed for the service has been reached 4 Carry out maintenance on the boiler 4 To clear the inspection press key t M06 REVISION B M07 REVISION C M20 DISGAS A boiler vent cycle is underway Switching the boiler on 4 Wait 3 minutes FL DRY B XX DAYS Floor drying is ac...

Page 99: ... code 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 needed 2 Press the t key If the code is displayed again switch off the boiler and then switch it back on 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 SUNDAY 11 45 10 TEMP _ _ _ _ C002272 C 04 bar 1 1...

Page 100: ... 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 the sensor has been correctly fitted Sensor fault 4 Check the Ohmic value of the sensor 4 Replace the sensor if necessary L03 DEF OUTLET S PCU The boiler flow sensor is on an open circuit Bad connection 4 Check the wiring between the PCU PCB and the sensor 4 Check that the S...

Page 101: ... Check the Ohmic value of the sensor 4 Replace the sensor if necessary No water circulation 4 Vent the air in the heating system 4 Check the circulation direction pump valves 4 Check the water pressure 4 Check the cleanliness of the heat exchanger L06 BACK S FAILURE PCU The return temperature sensor has short circuited Bad connection 4 Check the wiring between the PCU PCB and the sensor 4 Check th...

Page 102: ...e SU PCB is correctly in place 4 Check that the sensor has been correctly fitted Sensor fault 4 Check the Ohmic value of the sensor 4 Replace the sensor if necessary No water circulation 4 Vent the air in the heating system 4 Check the circulation direction pump valves 4 Check the water pressure 4 Check the cleanliness of the heat exchanger L10 DEP RET MAX PCU Difference between the flow and retur...

Page 103: ... Vent the air in the heating system 4 Check the circulation direction pump valves 4 Check the water pressure 4 Check the cleanliness of the heat exchanger L14 BURNER FAILURE PCU 5 burner start up failures No ignition 4 Check the wiring between the PCU PCB and the ignition transformer 4 Check that the SU PCB is correctly in place 4 Check the ionization ignition electrode 4 Check the earthing 4 SU P...

Page 104: ...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 L36 I CURRENT FAIL PCU The flame went out more than 5 times in 24 hours while the burner was operating No ionization current 4 Purge the gas supply to remove air 4 Check that the gas valve is fully opened 4 Checking the gas supply ...

Page 105: ...C FAIL SCU Circuit B flow sensor fault Circuit C flow sensor fault 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 whether the sensor is connected See chapter Deletion of sensors from the memory in the PCB page 106 4 Check the link and the connectors 4 Check that the sensor has been correctly fitted S...

Page 106: ...IL SCU A room temperature sensor fault B room temperature sensor fault C room temperature sensor fault Note The circuit concerned operates without any influence from the room sensor Bad connection 4 Check whether the sensor is connected See chapter Deletion of sensors from the memory in the PCB page 106 4 Check the link and the connectors 4 Check that the sensor has been correctly fitted Sensor fa...

Page 107: ...the PCU PCB D32 5 RESET ON OFF SCU 5 resets done in less than an hour 4 Switch the boiler off and switch back on D37 TA S SHORT CIR SCU The Titan Active System is short circuited 4 Check that the connection cable between the SCU PCB and the anode is not short circuited 4 Check that the anode is not short circuited Remarks Domestic hot water production has stopped but can nonetheless be restarted u...

Page 108: ...e menu DEFAULT HISTORIC 4 Turn the rotary button to scroll through the menus or modify a value 4 Press the rotary button to access the selected menu or confirm a value modification For a detailed explanation of menu browsing refer to the chapter Browsing in the menus page 49 3 The list of the last 10 faults is displayed 4 Select a fault to consult the information pertaining to it bar 1 1 2 2 r c S...

Page 109: ... of the boiler flow sensor BOILER T 1 Measurement of the boiler flow sensor BACK TEMP 1 Temperature of the boiler return water SYSTEM TEMP 1 Temperature of the system flow water if multi generator SYST CALC T 2 System flow temperature calculated by the control system CALCULATED T A Calculated temperature for circuit A CALCULATED T B 3 Calculated temperature for circuit B CALCULATED T C 3 Calculate...

Page 110: ... parameter is only displayed for the options circuits or sensors actually connected After Sales level Menu TEST OUTPUTS Parameter Adjustment range Description P CIRC A ON NO Stop start pump circuit A P CIRC B 1 ON NO Stop start pump circuit 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 1 ON NO On Off auxiliary outlet 3WV B 1 REST No comman...

Page 111: ...ersion of the PCU PCB programme VERS PARAM PCU Version of the PCU PCB parameters S N SU Serial number of the SU board VERS PARAM SU Version of the SU PCB programme VERS PARAM PCU Version of the SU PCB parameters MC VERSION 1 Version of the boiler radio module programme SOLAR VERS 1 Solar control system software version CALIBRA CLOCK 2 Clock calibration 1 The parameter is only displayed for the opt...

Page 112: ...imum modulation following too large a rise in temperature on the exhanger 7 K in 10 seconds 35 Burner off following too large a rise in temperature on the exchanger 9 K in 10 seconds 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 minimum modulation...

Page 113: ...omponent in the appliance 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 parts list reference 300022159 002 A MCA 25 28 BIC 9 Spare parts 15 06 12 300022159 001 01 111 ...

Page 114: ...9 2 1 Casing EV 119526 1 1 T001498 B 1001 1002 1006 9 Spare parts MCA 25 28 BIC 112 15 06 12 300022159 001 01 ...

Page 115: ...26 2029 2028 2019 2017 2018 2020 2022 2002 2007 2004 2021 2001 2050 2024 2023 2006 2013 2016 2012 2014 2015 2015 2034 2005 2005 2032 2032 2010 2010 2034 2011 2011 2033 2003 2030 2030 2009 2038 2039 2036 2037 MCA 25 28 BIC 9 Spare parts 15 06 12 300022159 001 01 113 ...

Page 116: ...9 2 3 Fan EV 119526 3 3 T001653 B 3005 3003 3007 3011 3012 3006 3004 3002 3008 3001 3008 9 Spare parts MCA 25 28 BIC 114 15 06 12 300022159 001 01 ...

Page 117: ...anel 4 EV 119526 4 T001654 C 4016 4006 4009 4022 4018 4023 4015 4024 4030 4017 4019 4022 4021 4008 4008 4007 4009 4003 4014 4001 4010 4011 4012 4002 4004 4014 MCA 25 28 BIC 9 Spare parts 15 06 12 300022159 001 01 115 ...

Page 118: ...08 5017 5018 5023 5016 5004 5050 5042 5040 5038 5057 5041 5038 5044 5049 5048 5039 5037 5043 5047 5056 5045 5046 5002 5001 5010 5017 5061 5060 5030 5064 5064 5029 5027 5052 5x 5053 5x 5058 5059 5051 5063 5025 5019 5011 5071 5070 5072 5073 5065 5077 5062 5066 5065 5067 5069 5077 9 Spare parts MCA 25 28 BIC 116 15 06 12 300022159 001 01 ...

Page 119: ...92 Gasket between flue gas discharge and condensate collector 1 2022 S100855 Leak proofing ring Ø 80 mm 5 2023 S100850 Protective plug for the combustion gas evacuation measurement point 1 2024 S100901 Holding strip for the heat exchanger 1 2025 S100848 Holding clip for the flue gas discharge pipe 2 2026 S62768 Combustion air flue gas adapter 60 100 1 2028 S62232 Protective plug for the combustion...

Page 120: ...ught diverter 1 4011 S100861 Oval sealing gasket 5 4012 S62185 Screw Kb30x8 10 4014 S101251 Control panel 1 4015 S48950 Screw M4x10 50 4016 S101005 HI temperature sensor 1 4017 S100869 Gasket SCU 1 4018 S100862 SCU grommet 5 4019 S62185 Screw Kb30x8 10 4021 S101048 SCU 04 1 4022 S100860 Box SCU 1 4023 S100843 SCU 230V cable 1 4024 S100847 SCU cable 1 4030 S101000 grommet 5 Connecting pipes 5001 S1...

Page 121: ...8 x12 2 5049 S62715 Seal ø 14 5x8 5x2 10 5050 S100238 Condensates collector 1 5051 S100912 Set of pipes 16 18 22 mm 1 5052 S56157 Seal ø 18 3x12 7x2 10 5053 S56155 Seal ø 23 8x17 7x2 20 5055 S100805 Filter Central heating 1 5056 S100241 PVC 12 9 hose650 mm 1 5057 S100896 Pipe for pressure gauge 1 5058 S101293 Expansion vessel bracket 1 5059 S101292 Domestic expansion vessel hose 1 5060 S101313 Set...

Page 122: ...9 Spare parts MCA 25 28 BIC 120 15 06 12 300022159 001 01 ...

Page 123: ......

Page 124: ...v Princep d Astúries 43 45 08012 BARCELONA 34 932 920 520 34 932 184 709 ES 129164 Россия г Москва Зубарев переулок д 15 1 Бизнес центр Чайка Плаза офис 309 7 495 221 31 51 Copyright 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 conse...

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