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Manual Merlin V3

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1. Solar MF T MF1 Temperature MF sensor 1 F 11 MF1 Status of relay MF1 On Off T MF2 Temperature MF sensor 2 F 12 MF2 Status of relay MF2 On Off T MF3 Temperature MF sensor 3 F 13 MF3 Status of relay MF3 On Off T MF4 Temperature MF sensor 4 F 14 MF4 Status of relay MF4 On Off T Solar 1 Temperature collector 1 T Solar 2 Temperature collector 2 T DHW Current hot water temperature and current warm water set temperature as per heating program and operating mode T DHW B Temperature of HW tank in the lower section infeed solar T Buffer T Buffer storage tank temperature removal T Buffer M Buffer storage tank temperature charging zone HS T Buffer B Buffer storage tank solar zone T Storage 3 Storage 3 charging zone F15 Sol pump 1 Status of collector pump 1 Sol pump 2 Status of collector pump 2 Sol pump 3 Status of the collector pump 3 Charge ST HW Status storage charging pump 1 Charge ST BU Status storage charging pump 2 or the switch over valve on Sp2 Charge ST 3 Status of storage charging pump 3 or the switch over valve on Sp3 Charge DHW2 Status transfer pump on 2nd DHW storage tank F15 cascade Charge BU2 Status transfer pump on the 2nd buffer storage tank F15 cascade Part 2 Overview of display values and settings Heatcircuit 1 2 T Room room temperature F2 F15 Only if a sensor or a FBR is connected T Pool pool temperature F
2. Choice of installation Isolating circuit for hot water preparation N conductor mains Power supply unit Pump Heatcircuit 1 Pump Heatcircuit 2 Storage charging pump Mixing Valve Heatcircuit 2 open Mixing Valve Heatcircuit 2 closed Additional switching HS Bridge 33 to 22 Pump additional switching HS Mixing Valve Heatcircuit 1 open Mixing Valve Heatcircuit 1 closed Collector pump Circulation pump Power supply of relay via fuse e g bridge to 22 L17 Choice of installation Part 4 Installation and Start up Installation 03 Merlin 3611 gt 0 10V controller Terminal assignment Sensors 1 GND Outdoor sensor 2 GND Optional HS sensor 3 GND Storage tank sensor 4 GND Flow sensor Heatcircuit 2 5 GND 6 Optional FBR2 FBR1 for Heatcircuit 1 6 GND Optional room sensor for Heatcircuit 1 7 GND 8 GND Flow sensor Heatcircuit 1 9 GND Optional hot water tank bottom 10 GND Optional multifunction relay sensor 3 PT1000 but not for collector pump 11 GND Optional multifunction relay sensor 4 PT1000 but not if circulation time applies 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 13 GND Optional room sensor for Heatcircuit 2 14 15 0 10V Output to boiler 16 17 Data line CAN BUS 18 19 Power supply CAN BUS N conductor mains Power supply unit Pump Heatcircuit 1 Pump Heatcircuit 2 Storage charging pump Mixing Valve Heatcircuit 2 open Mixing
3. The valve changes solar production over from buffer storage to storage tank 3 F15 if it is not possible for any more collectors to feed the buffer storage 09 Switch over valve Storage 3 swimming pool The F15 function must stand on 5 only for systems without solar buffer charging The valve switches the solar production from the hot water tank to Storage 3 F15 as soon as no collector is able to charge into the hot water tank 12 Remote controlled output Heatcircuit 1 The relay can be switched from the control unit of the heating circuit via the BUS for function refer to control unit manual Expert area 13 Remote controlled output Heatcircuit 2 The relay can be switched from the control unit of the heating circuit via the BUS for function refer to control unit manual 20 Temperature controlled circulation pump T CIRCL Return flow temperature of circulation line ON T CIRCL lt T MF1 SETPOINT OFF T CIRCL gt T MF1 SETPOINT MF 1 HYST The circulation pump is switched on when the return flow temperature drops below the temperature setting limit T MF1 SETPOINT The pump is switched off again when the return flow temperature exceeds the set limit temperature by the Hysteresis MF 1 HYST The set circulation program and the Circulation with hot water setting have an overriding function gt Switching on only takes place during enable periods 21 Pulsed circulation pump ON With short
4. MF HYST OFF Safety system protection Please See Max T Solar and T Storage 3 30 Transfer pump DHW storage tank II The F15 function must stand on 4 Relay switches when the temperature of the hot water storage tank exceeds the temperature F15 by the hysteresis MF HYST Switching off occurs when the temperature drops below the temperature F15 MF HYST OFF 31 Transfer pump buffer storage tank Il The F15 function must stand on 4 Relay switches when the temperature of the buffer storage tank exceeds the temperature F15 by the hysteresis MF HYST Switching off occurs when the temperature drops below the temperature F15 MF HYST OFF 32 Direct heating circuit Heating circuit with fixed flow temperature gt T MF Des In the event of a short circuit at the assigned MF sensor via room thermostat timer switch gt Heating circuit pump ON gt Preset desired flow temperature to the HS After the sensor short circuit has been eliminated a run on time takes effect on the pump 33 Thermostat function ON T MF gt T MF DES OFF T DHW lt T MF DES 5K 34 Bypass valve cooling mode The relay is switched in cooling mode gt separation of the conventional HS from the cooling circuit gt This means hot water preparation during cooling operation is possible the flow temperature for the HS control is captured by the MF sensor Expert area Max T Solar The collector pump
5. T Header only for Cascades F8 T HS F8 F13 or BUS HS State T Return total F17 T Buffer T M B F3 F2 F 1 Mod depth Hot Water T DHW Rated hot water set temperature T DHW hot water temperature F6 DHW T B storage tank bottom temp F12 T Circulation return flow temperature of circulation Heatcircuit 1 2 T Room room temperature F2 F15 WHONND NNNNNNN DADA D WDADMDDDDDADADADAAWAAAWAAWAAWDAAWHAAGO NNO O O O O O O O O O O O O OO HO Co 10 10 Contents T Pool pool temperature F2 F15 T DHW hot water temperature F11 F5 T Flow Flow temperature F11 F5 10 10 10 Need Opti Time last required heating up time 10 Solar MF Solar Multifunction T MF 1 4 F11 F14 T Solar 1 2 collector temperature Sol pump 1 2 3 collector pump status Charge ST DHW BU 3 status of storage charging pump Charge DHW2 BU2 status of transfer pump User Area Installation English gt Language LCD Contrast LCD Brightness C F Hot Water 1x hot water 1x hot water T DHW des 1 3 Hot water temperature setting BoB Value Operation Without Burner Circ Pump HW Circulation with hot water Antilegion Hot water short time heating function Heatcircuit 1 2 Operation T Room des 1 3 T Reduced T Absence T Room cooling only in cooling mode Min TO cooling only in cooling mode T Limit Day T Limit Night Heat Slope Adaption Heating curve adaption Room Influence Room se
6. Terminal assignment Installation 09 Cooling function in heating circuit return Terminal assignment Installation 10 Central cooling function and solar integration Terminal assignment Contents Solar installations examples Accessories The operating module Merlin BM BM 8 and Lago FB Remote control FBR2 Telephone switch DCF receiver PC System bus Bus ID Sensors Sensor values characteristic curve Outdoor sensor AF A Immersion sensor KF SPF Flow sensor VF Commissioning Process Basic settings English Time Year Month Day Configuration Plant select selecting basic controller functions HS1 Type first heat generator type HS1 BUS connection for HS HS2 Type second heat generator type gt A7 Storage HS2 heat accumulator for HS2 Buffer heater buffer storage type Cooling mode Space cooling via operating mode Gradient HC FUNCTION heating circuit function selection Capacity Stage HS output for each stage Auxiliary relay functions MF 1 Func function selection relay MF1 T MF1 Setpoint switching temperature relay MF 1 MF 1 Hyst hysteresis relay MF1 Max T Solar Min T Solar ON Min T Solar OFF T Solar protect Rflow cool diff Max T Storage DHW BU 3 Sol Kick Period sec Sol Kick Pause min Sol Kick Gradient min F15 function sensor function for F15 Bus ID heating circuit number Sensors Part 5 Appendix Error Messages Troubleshooting Dimensions Technical data
7. 0 Stage available and deactivated In the case of heat generators with the same output a boiler release is sufficient e g HG 1 01 gt 01 HG 1 02 gt 01 HG 2 01 gt 01 etc depending on the number of boilers Automatic assignment After restarting or after a new configuration the controller searches the bus systems for a heat generator Within this time period approx 1 min no manual output entries are allowed Display SCAN In the case that a heat generator answers with output information this output is automatically entered into the list In the case that a heat generator answers without output information 15kW is entered into the list This value can then be adjusted manually BUS Scan This function searches for heat generators on the BUS If the displayed configuration is correct it can be saved using the Config OK button This procedure will overwrite all the current values min Mod Cascade min modulation cascade If the cascade controller calculates an overall modulation rate greater than zero and less than min Mod Cascade the overall modulation rate is set to the value min Mod Cascade The Lock Time is simultaneously set to 10s DHW HS number of stages for HW operation 00 HW preparation via header 01 08 Number of heat generators in the cascade which are coupled out of the cascade hydraulically for hot water preparation It is essential that the HW Modules are at the beginni
8. a Normal Mode Part 1 Operation Normal Mode e Mo 26 May 05 10 00 1 0 12 24 1 2 T HS 1 56 8 C 3 Standby Heating 4 Due to the tolerances of sensors deviations of 2K 2 C are normal between various temperature displays Temperatures which change rapidly can have higher deviations for short periods due to the different time related behaviour of various sensors a The indicator of the current heating programs of all internal heating circuits of the controller is firmly anchored in the favorite level line 2 The associated heating circuit is displayed in brackets You can program all other favorites yourself The rotary knob is used to change the display Mode End Party Standby Reduced OK Mode End Reduced Pary 01h OOmin Reduced OK Mode End Reduced Sart arly 05 days Reduced OK j Part 1 Operation For initial start up or the level Installation please read the installation section Control elements in normal mode Rotary knob Use the rotary knob to select a value from the favourite level for display in line 2 O Home button Switch between operation of the controller and normal mode standard display F keys gt See line functions Display line functions in normal mode Line 1 Displays
9. last heating time only if it not already in operation This function prevents short term heating of the heat generator to the end of the heating period PC enable Code number for enabling access to heating circuit data from a PC 0000 gt access PC and terminal is blocked 0001 gt access is free of Terminal access PC is blocked Timer Program Area Timer Program Area All the time programs can be set in this area Adjusting a time program Programs with maximum controller configuration 1 Heating program for Heatcircuit 1 2 Heating program for Heatcircuit 1 Heatcircuit 1 Prg1 Heatcircuit 1 Prg2 1 Heating program for Heatcircuit 2 2 Heating program for Heatcircuit 2 Heatcircuit 2 Prg1 Heatcircuit 2 Prg2 Hot Water Circulation Program for hot water loading Program for hot water circulation Heating circuits and hot water Heatcircuit 1 Heating program 1 gt factory setting Mo to Fr 06 00 to 22 00 Sa and Su 07 00 to 23 00 Heating time 1 Heating time 2 Heating time 3 Mo Tu We Th Fr Sa Su Heating program 2 gt factory setting Mo to Fr 06 00 to 08 00 16 00 to 22 00 Sa and Su 07 00 to 23 00 Hot Water Factory setting Mo to Fr 05 00 to 21 00 Sa and Su 06 00 to 22 00 Part 2 Overview of display values and settings P
10. or the Home button must be pressed gt Controller switches to Operation mode Display in operating mode Main menu ot End Display User Time Programs General operating procedure Home button gt operating mode Use the rotary knob to find the area type of values Use the F button to select the area Use the rotary knob to search for the level generator consumer Use the F button to select the level e Use the rotary knob to search for the set display value e Use the F button to select the set display value e Use the rotary knob to change set value e Use the F button to select the function confirm the change Selectable functions with the F buttons End Cancels the current function without saving Favorite Transfers the set value to the favourite level Standard Changes the set value to the factory setting OK Cancels and saves the current function gt Next set value e g time hour gt minute lt Previous set value e g date month lt year T Room desired 1 End Favorite 20 0 C Standard OK j Part 1 Operation When the Home button is first activated after voltage is applied the level installation is displayed once only Once the values grouped here have been set the controller is operable When the level appears later on e g after a power outage the function can just be ended Areas Type of set values Displa
11. section infeed solar DHW require Status heating requirement warm water On Off DHW pump Status warm water loading pump On Off DHW release Release hot water preparation On Off T Circulation Return flow temperature of the circulation Circulation Status circulation pump On Off pump Display Range Installation T Outside F9 The measured outside temperature is smoothed for control purposes The smoothed value is displayed here Ext setpoint F15 The 0 10V input can be used to preset an accumulative set value for the control system see V CURVE p 26 T Header only for Cascades F8 The set value appears after the F button is pressed The set value corresponds to the maximum required temperature of the consumer circuits from the heating system incl hot water preparation The mixer circuits request the temperature heating curve distance expert value T HS F8 F13 or BUS Current measured temperature of all connected heat generators only if sensors are present HS State Additionally it is indicated whether the heat generator is switched on in the case of two stage heat generators the status of the second stage is also displayed T Return total F17 Return flow temperature for start of the refrigeration machines see T Return cooling T Buffer T M B F3 F2 F 1 only if buffer storage is installed Buffer storage tank temperatures in the discharge area the charging area and th
12. 2 E 136 F13 PT1000 HS2 Collector2 Multifunction 3 E 137 F14 PT1000 Collector 1 Multifunction 4 When an error occurs in the heating system the associated error number appears in the controller s display Please refer to the table below for the significance of the displayed error code The system must be restarted after a fault has been remedied gt RESET RESET Brief device shut off mains switch Controller restarts reconfigures itself and continues to operate with the values that have already been set RESET the set values The overwriting of the set values with standard values can be performed separately in the Service level for the User and Expert parameters and the Time Programs Troubleshooting General If your system malfunctions you should first check that the controller and the control components are correctly wired temperature see Display Installation Control unit gt Room temperature displayed and current room temperature setting blanked out see Display heating circuit In case of communication problems Check connecting cables Bus lines and sensor lines must be laid separately away from mains cables Poles switches Check bus feed There must be at least 8V DC between the and terminals of the BUS connector connectors 18 19 If you measure a lower voltage an external power supply must be installed Pumps do not switch off Check pump switching g
13. CAN BUS 18 19 Power supply CAN BUS Part 4 Installation and Start up Installation 07 Merlin 1144 gt Mixer valve extension o CAN BUS Terminal assignment Sensors 1 GND optional outdoor sensor 2 GND 3 GND 4 GND Flow sensor Heatcircuit 2 5 GND 6 Optional FBR2 FBR1 for Heatcircuit 1 6 GND Optional room sensor for Heatcircuit 1 7 GND 8 GND Flow sensor Heatcircuit 1 9 GND _ Hot water tank bottom 10 GND Sensor Solid fuel boiler HS2 PT1000 11 GND Optional multifunction relay sensor 4 PT1000 but not in the case of circulation 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 13 GND Optional room sensor for Heatcircuit 2 144 15 16 17 Data line CAN BUS 18 19 Power supply CAN BUS Choice of installation m2 FBR E N conductor mains Power supply unit Pump Heatcircuit 1 Pump Heatcircuit 2 Mixing Valve Heatcircuit 2 open Mixing Valve Heatcircuit 2 closed Mixing Valve Heatcircuit 1 open Mixing Valve Heatcircuit 1 closed Collector pump Optional Solar pump Power supply of relay via fuse e g bridge to 22 L17 Choice of installation Installation 09 Cooling function in heating circuit return Terminal assignment Sensors 1 GND Outdoor sensor 2 GND HS1 sensor 3 GND Storage tank sensor 4 GND 5 GND 6 Optional FBR2 FBR1 for Heatcircuit 1 6 GND Optional room sensor for Heatcircuit 1 7 GND 8 GND Flow
14. Day Date and Time F button Adjust Date Time and Holiday Line 2 Displays Favorites the selection of the currently displayed favourites takes place with the rotary knob F button Adjust Favorites or additional displays Line 3 Display the temperature of the heat generator 1 or the collector for cascades F button Display of the set temperature for the HS Line 4 Left gt Display of the central operating mode Right gt Display of the current situation of the first heating circuit provided it is not remote controlled Heating Reducing Party or Holiday F button Adjust or activate the mode the Party Reducing or the Holiday function valid for all internal heating circuits In order to adjust the values from the standard display press the associated F button and adjust using the rotary knob or if there are several values first select the desired value with the F button Save the value using the F button OK Setting the mode as well as the Party Reducing and the Direct Holiday Function In normal mode standard display press the F button 4 The rotary knob can now be used to change the operating mode see next page for the operating mode Save with OK gt F button 4 End without save with End gt F button 1 For the activation of the party or the reducing function press the corresponding F button 2 or 3 The rotary knob can now be used to set the heating time increase Party or the heati
15. For optimum operation with maximum number of burners Set Modulation Max 0 and Modulation Min to the minimum modulation degree for heat generator stages Modulat DHW only for HW modules Entry of the set modulation degree for the heat generators in hot water operation see DHW HS Sequence 1 Sequence 1 Entry of the sequence in which the heat generators are set into operation in sequence 1 F button gt Boiler number selection Input of the boiler number Sequence 2 Sequence 2 Entry of the sequence in which the heat generators are set into operation in sequence 2 F button gt Boiler number selection Input of the boiler number With respect to two stage heat generators the second stage is always switched after the first stage Sequ Change type of sequence change e Sequence 1 only e Sequence 2 only e Timed Change between sequence 1 and 2 according to operating hours of the first heat generator of the active sequence e 1 2 switch Conversion for heat generator with a different nominal output When the second boiler is switched on the first boiler will be put out of operation until activated again e Rotating The first boiler of the sequence is placed in last position of the current sequence after the sequence switching time has elapsed e Sorting New boiler sequence by means of automatic sorting according to operating hours in the event of sequence change sequence change according
16. PC you need the CoCo PC active which also supports the sending of error messages by SMS and the remote interrogation of controller data System bus This controller can be expanded in a modular fashion using additional modules that are connected via the integrated bus In its maximum configuration the system can be used to control the following heating system components 1 8 Boiler modulating or switching 1 15 Mixed weather dependent heating circuits 0 15 Room controller digital or analogue 1 Solar system 2 collectors 2 storage tanks 1 Solid fuel boiler The various components are simply coupled to the system bus The modules log on to the system automatically and search for their communication partners via the defined bus IDs heating circuit number or boiler number Bus ID For mixer motor controllers and control units The bus ID 00 15 expert level parameter is used to number the heating circuits in the system Each operating module and each mixer motor module is given the number of the assigned heating circuit as its bus ID e Heating circuit numbers 00 15 may not be assigned twice e Heating circuit numbers 00 and 01 may not be used simultaneously e The heating circuits are sequentially numbered starting with 01 e Please only use heating circuit number 00 for replacement controllers if 00 was used in the replaced controller Pre settings Heatcircuit 1 gt 01 Heatcircuit 2 gt 02 After sett
17. Standard Heating limits Only timeprog Continuous Mixer Open 5 25 18 not for HW circuit Mixer Close 5 25 12 not for HW circuit Max T Flow 20 C 110 C 80 C Min T Flow 10 C 110 C 10 C T Flow cooling OFF CLOSE 15 C 10 C 25 C T Frost protect 0 C 15 C 5 C Outdoor delay 0 00 24 00 0 00 Slope Offset OK 50K 5K B Heat Sink Off On On Use the F button End to exit the level HC Function heating circuit function selection Standard gt favorite heating circuit T Circuit Fxd gt Control for fixed flow temperatures During the heating periods see heating program the heating circuit is operated with a fixed preset flow temperature T Flow Day and during reduced mode operation with a fixed preset flow temperature T Flow Night accordingly Pool gt Pool control only Heatcircuit 2 This function can be used to heat a swimming pool The mixer controls the flow temperature for the swimming pool heat exchanger The swimming pool water temperature sensor is connected to the room sensor F15 for the heating circuit see FBR The flow temperature control operates like normal room control Room Influence The set value for the water temperature can be entered in the user area of the associated heating circuit level T Pool 1 2 3 The heating program operates No heating takes place during the reduction period The water temperature and the current set value are displayed i
18. T SOLAR lt T Buffer B MF HYST OFF The pump is switched on when the temperature of the solar collector exceeds the temperature of the storage tank in the infeed area T Buffer B by the Hysteresis MF HYST Switching off occurs when the temperature drops below the temperature T Buffer B MF HYST OFF Safety system protection Please See Max T Solar and T Storage BU 29 Storage charging pump 3 pump operates when the storage tank 3 can be charged by the solar system and the buffer storage tank can not be charged by the solar system Expert area The F15 function must stand on 5 a The temperature of the medium used for charging the storage tank is always measured at the MF4 sensor T MF4 Exception In the case of function 23 at MF4 the sensor assigned to the MF relay storage charging pump 3 is used to determine the temperature of the medium used for charging the storage tank T SOLAR T SOLAR T MF4 Temperature of the solar collector T SOLAR T MF 1 3 Temperature of the heat exchanger T Storage 3 F15 temperature of storage tank 3 in the infeed area ON T SOLAR lt T Storage 3 MF HYST OFF T SOLAR lt T Storage 3 MF HYST The pump is switched on when the temperature of the solar collector exceeds the temperature of the storage tank in the infeed area T Storage 3 by the Hysteresis MF HYST Switching off occurs when the temperature drops below the temperature T Storage 3
19. case only a 5KOhm NTC sensor can be used Part 4 Installation and Start up 00990 01 Sensors Outdoor sensor AF A Installation location e Wherever possible on a northerly or north easterly wall behind a heated room e Approx 2 5 m above ground e Not above windows or ventilation shafts Installation e Detach the cover e Attach the sensor with the supplied screw Immersion sensor KF SPF Installation location e Immersion sleeve for thermometer temperature controller and boiler sensor in heating boiler e Inthe immersed pipe of the hot water cylinder tank generally on the front face of the tank Installation e Slide the sensor as far as possible into the immersed pipe The immersed sleeve must be dry Flow sensor VF Installation location e Inthe case of boiler control instead of the boiler sensor KF as close as possible behind the boiler on the heating flow pipe e Inthe case of mixer operation approx 0 5 m behind the circulation pump Installation e Thoroughly clean the flow pipe e Apply heat conductive paste A e Secure sensor with stretch band Commissioning Part 4 Installation and Start up Commissioning Process 1 Please read this guide carefully before commissioning 2 Mount the controller connect it to the electrical system and switch on the power supply Wait until Installation appears on the display End End installation standard valu
20. circuit at assigned sensor input OFF After 5 minutes If a short cut occurs at the multifunction sensor input the circulation pump is switched on for 5 minutes Switching on takes place on the edge once only The set circulation program and the Circulation with hot water setting have an overriding function gt Switching on only takes place during enable periods 22 Solid fuel boiler integration e g in connection with 2 stage HS T MF1 or 1 4 Temperature of the solid fuel boiler T BUFFER B Temperature of buffer storage in the infeed area F1 ON T MF1 gt T BUFFER B F1 MF 1 HYST 5K OFF T MF1 lt T BUFFER B F1 MF 1 HYST Warm Up Temp ON T MF1 gt T MF1 SETPOINT OFF T MF1 lt T MF1 SETPOINT 5K The pump is switched on when the temperature of the solid fuel boiler exceeds the temperature of the buffer storage in the infeed area T BUFFER B F1 by the hysteresis MF 1 HYST 5K Switching off occurs when the temperature drops 5K below the switch on temperature Switching off also occurs when the temperature of the solid fuel boiler drops below the set limit temperature T MF1 SETPOINT by 5K The pump is enabled again when the temperature of the solid fuel boiler exceeds the set limit temperature T MF1 SETPOINT Blocking HS1 ON T MF1 gt HS set temperature 5K and solid fuel boiler pump ON OFF T MF1 lt HS set temperature or solid fuel boiler pump OFF 23 Collector
21. entered for this function Code No Entry 1 Set number F button gt next number 2 Set number F button gt next number 3 Set number F button gt next number 4 Set number Use the F button OK gt Relay Test to activate the Code No A The relay test is automatically cancelled after 5 minutes without an operation Sensor Test Use the F button to start the sensor test with use to select the sensor gt temperature is displayed use the F button End to end the sensor test Part 2 Overview of display values and settings Other entries Service area Use to select a value Software number Software number with index XXX XX Cascade manual Starting different burner stages operation of the cascade 1 8 only with code no Burner time Burner time for all stages Burner starts Burner starts for all stages STL Test Safety temperature limiter test with heat generator temperature display gt Start with F button hold down Service Input of date or hours for only with code no service messages Reset User Load user parameter factory settings Reset Expert only with code number Load expert parameter factory settings Reset Time Prog Load time program factory settings Communic BM 1 Remote control HC1 on BUS Communic BM 2 Remote control HC2 on BUS Use the F button End to exit the level Service are
22. external header temperature setting via the 0 10V output signal Configuration F15 function 03 gt Evaluation of the preset external modulation depth via the 0 10V input 0 10V I O Designation Value range Standard IV V CURVE 00 11 00 CURVE 11 U1 0 00V 10 00V 4 00 CURVE 11 U2 0 00V 10 00V 0 10 CURVE 11 T1 00 C 120 C 20 CURVE 11 T2 00 C 120 C 90 Curve 11 UO 0 00V 10 00V 5 00 Use the F button End to exit the level Table of voltage curves that can be chosen No U1 U2 T1 T2 UA 0 2 0 10 0 O 90 2 0 1 25 03 38 80 5 0 2 25 03 38 75 5 0 3 25 03 38 45 5 0 4 4 0 0 1 20 85 5 0 5 4 0 0 1 20 75 5 0 6 4 0 0 1 20 55 5 0 T 4 0 0 1 30 87 5 0 8 4 0 0 1 38 87 5 0 9 4 0 0 1 38 73 5 0 10 4 0 0 1 38 53 5 0 11 4 0 0 1 20 90 5 0 Part 2 Overview of display values and settings Set values for cooling mode T Return cooling In Cooling operating mode the refrigeration machine is switched on when the temperature set here is exceeded in the return flow at the sensor F17 The refrigeration machine is switched off when the temperature at F17 drops below this temperature T Return Cooling 2K Set values for 0 10V Input Output V Curve only for 0 10V input output One of the defined voltage curves or free definition curve 11 can be selected here for configuring the voltage input and the vol
23. function description Cooling operation If a refrigerating machine is present cooling mode can be activated using the operating mode selector switch gt Hot water loading is only possible by means of the conventional heat generators If a bypass valve for cooling operation MF is activated the bypass valve is switched in the Cooling operational mode The refrigerating machines and associated HS pumps are switched on when required by the heating circuits until the return flow temperature has fallen below the desired temperature T Return cooling The switching hysteresis is 2K T Flow cooling only in installation cooling mode In the Cooling operating mode this temperature is adjusted via the mixer in the heating circuit flow OFF Heating circuit is not cooled Mixer Valve Closed Pump Off CLOSE Mixer valve as bypass valve Mixer Valve Closed Pump On The heating circuits reverse the adjustment of the mixing valve When enabled the mixer controls the temperature to the temperature T Flow cooling see description of parameters The pumps are switched according to the parameters set for heating operation With room control regulation occurs according to the temperature T Room cooling Weather dependent cooling Cooling mode is enabled when the set outside temperature Min TO cooling is exceeded Cooling operation is set again 1K below the limit temperature Room temperature dependent cooling Cooling
24. heat generator connection K Dyn Downward dynamic heat generator deactivation K T Buffer Charge Min T Buffer Set values for 0 10V Input Output Set values for cooling mode T Return cooling Set values for 0 10V Input Output V Curve only for 0 10V input output Curve 11 xx only when V Curve 11 Screed program Preset values Screed activation of screed drying process Screed Programm settings Hot Water DHW Relief DHW Relief Parallel DHW Pump parallel running T HS DHW increase during HW operation Hysteresis DHW hot water hysteresis DHW Followup pump run down time Therm Input storage tank with thermostat Wall Hung for modulating HS Load Through only with F12 T DHW B Heatcircuit 1 2 HC Function heating circuit function selection 29 Pump Mode pump operating modes Mixer Open open mixer dynamic Mixer Close close mixer dynamic Max T Flow max flow temperature Min T Flow min flow temperature T Flow cooling only in installation cooling mode T Frost protect frost protection temperature Outdoor delay outside temperature delay Slope Offset heating slope distance B Heat Sink circuit enable Auxiliary relay functions Solar MF MF 1 Func function selection relay MF1 T MF1 Setpoint switching temperature relay MF1 MF1 Hyst Switch on hysteresis Relay MF 1 MF1 Hyst Off Switch off hysteresis Relay MF1 Max T Solar Min T Solar ON Min T Solar OFF T Solar protect Rflow cool diff Max T
25. pump pump is operational as soon as the collector is able to charge one of the solar storage tanks Collector 1 pump only at MF4 because of sensor assignment and PT 1000 Collector 2 pump only at MF3 because of sensor assignment and PT 1000 Part 2 Overview of display values and settings At MF1 and MF 2 this function can be used to charge the storage tank from a heat exchanger without PT 1000 sensor T SOLAR Temperature of the solar collector T B Temperature of active storage tank at inlet area T T Temperature of active storage tank in upper area ON T SOLAR gt T B MF HYST OFF T SOLAR lt T B MF HYST OFF The pump is switched on when the temperature of the solar collector exceeds the temperature of the active storage tank see switch over valves in the infeed area by the switch on hysteresis MF HYST Switching off occurs when the temperature drops below the temperature T B MF HYST OFF A check is conducted before switch off as to whether a secondary storage tank see switch over valves can be fed Safety system protection Please See Max T Solar and T Storage DHW BU 3 24 Return flow temperature increase HS1 T RETURN 1 Return flow temperature from the installation T MF1 or 1 4 ON T RETURN 1 lt T MF1 SETPOINT OFF T RETURN 1 gt T MF1 SETPOINT MF 1 HYST The return flow temperature increase pump is switched on if the return flow temperature drops below
26. the temperature setting limit T MF1 SETPOINT It is switched off again when the return flow temperature exceeds the temperature setting limit by the Hysteresis MF 1 HYST 25 Return flow temperature increase HS2 T RETURN 2 Return temperature of system ON T RETURN 2 lt T MF1 SETPOINT OFF T RETURN 2 gt T MF1 SETPOINT MF 1 HYST The return flow temperature increase pump is switched on if the return flow temperature drops below the temperature setting limit T MF1 SETPOINT It is switched off again when the return flow temperature exceeds the temperature setting limit by the Hysteresis MF 1 HYST 26 Return flow temperature increase HS via buffer storage ON T BUFFER B F1 gt T MF1 MF 1 HYST 5K OFF T BUFFER B lt T MF1 MF 1 HYST The valve to the return flow temperature increase via the buffer storage is opened if the temperature buffer storage low T BUFFER B exceeds the return flow temperature of the installation sensor 1 or 1 4 by the Hysteresis MF 1 HYST 5K It is switched off again when the temperature buffer storage low drops below the return flow temperature Part 2 Overview of display values and settings 27 Storage charging pump 1 pump operates when the hot water tank can be charged by the solar system The temperature of the medium used for charging the storage tank is always measured at the MF4 sensor T MF4 Exception In the case of function 23 at MF4 the sensor assigned t
27. the F button End to exit the level DHW Relief DHW Relief The charging pump is not switched until the boiler temperature exceeds the storage tank temperature by 5K It is switched off when the boiler temperature drops below the storage tank temperature This prevents the storage tank from being cooled by the boiler when hot water preparation starts Parallel DHW Pump parallel running Partial DHW gt Partial priority HW The heating circuits are blocked during hot water preparation The mixers close and the heating circuit pumps switch off The mixer circuits are enabled again when the boiler has reached the temperature of hot water temperature setting boiler superheating T DHW T HS DHW If the boiler temperature drops below the enable temperature by the switching hysteresis Hysteresis DHW again the mixer circuits are blocked again On gt Pump parallel running Only the direct heating circuits are blocked during hot water preparation The mixer circuits continue to be heated The hot water preparation is extended by this function Off gt Warm water priority operation The heating circuits are blocked during hot water preparation The mixers close and the heating circuit pumps switch off Parallel all gt Pump parallel running also for the direct heating circuit During hot water preparation all heater circuits continue to be heated The hot water preparation is extended by this function When the
28. upper sensor limits the heat emission for the heating circuits in the range below the minimum buffer temperature The heating circuit pumps are switched Off Switching off the heating circuits only occurs if Outside temperature gt frost protection temperature Expert area Set value for cooling mode only when HS type cooling is selected If a refrigerating machine is present cooling mode can be activated using the operating mode selector switch The refrigerating machines are regulated to the return flow temperature T Return cooling switching hysteresis 2K Cooling operation Standard Designation Value range v T Return cooling 5 C 25 C 15 C Use the F button End to exit the level Set values for 0 10V Input Output If the controller assigns the HS with the set temperature through a voltage input the 0 10V output on the controller can be adjusted using the following parameters on the voltage input of the HS If the 0 10V input of the controller is used for a temperature requirement the evaluation of the current signal is defined using the same parameters Important set values for 0 10V I O Configuration HS1 BUS 04 gt Output of the temperature setting of the heat generator via the 0 10V output signal Configuration HS1 BUS 05 gt Output of the set modulation depth via the 0 10V output signal Configuration F15 Function 01 gt Evaluation of the preset
29. 16 17 18 19 Optional room sensor for Heatcircuit 2 eBUS to the heat generators FA DCF Data line CAN BUS Power supply CAN BUS Isolating circuit for hot water preparation N conductor mains Power supply unit Pump Heatcircuit 1 Pump Heatcircuit 2 Storage charging pump Mixing Valve Heatcircuit 2 open Mixing Valve Heatcircuit 2 closed Additional switching HS Bridge 33 to 22 Pump additional switching boiler Mixing Valve Heatcircuit 1 open Mixing Valve Heatcircuit 1 closed Collector pump Circulation pump Power supply of relay via fuse e g bridge to 22 L1 Part 4 Installation and Start up Installation 02 Merlin 4834 gt cascade controller for switching boiler Terminal assignment Sensors 1 GND 2 GND 3 GND 4 GND 5 GND 6 6 GND 7 GND 8 GND 9 GND 10 GND 11 GND Outdoor sensor Collector sensor Storage tank sensor Flow sensor Heatcircuit 2 Optional FBR2 FBR1 for Heatcircuit 1 Optional room sensor for Heatcircuit 1 Flow sensor Heatcircuit 1 Optional hot water tank bottom Optional multifunction relay sensor 3 PT1000 but not for collector pump Optional multifunction relay sensor 4 PT1000 but not if circulation time applies 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 13 GND 14 15 16 17 18 19 Optional room sensor for Heatcircuit 2 eBUS to the heat generators FA DCF only heat generators over eBUS Data line CAN BUS Power supply CAN BUS
30. 2 F15 Only if the heating circuit is configured as pool controller T DHW hot water temperature F11 F5 Only if the heating circuit is configured as hot water circuit T Flow Flow temperature F11 F5 Display of the measured flow temperature of the heating circuit only for mixed circuits and display of the current flow set temperature for the control Need Opti Time last required heating up time Display of the time last required for heating up Solar MF Solar Multifunction See the description for multifunction 1 4 under Expert This page only displays those parameters where the corresponding functions have been implemen ted and activated T MF 1 4 F11 F14 A sensor is assigned to the four available multifunction relays respectively If the sensor is not used by another standard function a function that requires the sensor may be selected for the relay In this case the measured value is displayed here In some special cases e g when selecting the functions return flow temperature increase or collector pump the measured value is additionally displayed as T Return under installation or as T Solar under Solar MF T Solar 1 2 collector temperature Display of the collector pump temperature s if solar installation configured via MF relay Sol pump 1 2 3 collector pump status Charge ST DHW BU 3 status of storage charging pump Status indication of the configured solar pumps If only o
31. 6 00 hours by activating this function by switching on the feeding pumps to the set maximum temperature of the storage tank The storage tank cannot be fed during this period Recooling can take place only when the temperature of the storage tank exceeds the collector temperature at least by the value of return flow cooling difference 3K hysteresis Part 4 Installation and Start up Max T Storage DHW BU 3 If a top of tank sensor is installed it is used to monitor the maximum temperature at this sensor If this sensor is not installed the maximum storage tank temperature is monitored at bottom storage tank sensor In this case the layering of the tank must be taken into account The feeding pumps are disabled when the temperature of the storage heater exceed the safety limit temperature set here System protection The pumps are reactivated when the temperature falls below the temperature maximum storage temperature 5K Sol Kick Period sec Collector pump runtime following pump kick Sol Kick Pause min If the collector pump has not run for the duration set here the pump is activated for the kick duration period Sol Kick Gradient min The course of the collector temperature is controlled during this period following a pump kick If an increase of 0 5K is detected the pump is started for a further minute F15 function sensor function for F15 00 Room sensor for Heatcircuit 2 if a further sensor at the puls
32. Cooling mode Space cooling via operating mode The mode of operation cooling and the necessary settings are released In the mode of operation cooling the heating circles can be used for the cooling of the room For this function a refrigerating machine is necessary Gradient ON HS1 Switching off for Gradient method OFF HS1 Switching off by set value Hysteresis See also under Switching behaviour of the HS with gradient method HC FUNCTION heating circuit function selection Standard gt Standard heating circuit T Circuit Fxd gt Control for fixed flow temperatures During the heating periods see heating program the heating circuit is operated with a fixed preset flow temperature T Flow Day and during reduced mode operation with a fixed preset flow temperature T Flow Night accordingly Pool gt Pool control only Heatcircuit 2 This function can be used to heat a swimming pool The mixer controls the flow temperature for the swimming pool heat exchanger The sensor for the water temperature of the pool is connected to the room sensor connection for the heating circuit see FBR connector 5 GND or 12 GND The flow temperature control operates like normal room control Room Influence The set value for the water temperature can be entered in the user area of the associated heating circuit level T Pool 1 2 3 The heating program operates No heating takes place during the reduction period frost prot
33. Date This area contains different values for the user in order to provide rapid access Parameters on the Time Date level Time Set hour F button gt hh mm hh mm set minutes Date Set year F button lt set month dd month yy F button lt set day Holiday begin Set date for begin of the holiday dd month yy time Holiday end Set date for end of the holiday time dd month yy Start Summertime dd month Set date for begin of clock change Stop Summertime dd month Set date for end of clock change Time Program for Solar Parameters on the Time Date level Time Not for Time Master or DCF in the system There may be a time difference of up to 2 minutes per month correct time if necessary If a DCF receiver is connected the correct time is always displayed Time Master for all controllers I If a heating system controller has been set to be the Time Master time setting for all controllers see Expert Configuration or a DCF Radio time receiver has been installed in the system the time is blanked out on all the other controllers in the system A max of one Time Master can be set on the BUS Date Please first set the year and then the month Then the number of days of the month are calculated during the setting Holiday function Please do not enter the day of travel as the start date but the first day of the holiday no more heati
34. Fahrenheit Hot Water 1x hot water 1x hot water On gt The storage tank is enabled for charging e g for showering outside hot water times Charging starts when the temperature falls below T DHW 1 des by the switching hysteresis T DHW des 1 3 Hot water temperature setting Required hot water temperature setting T DHW 1 des gt used in first enable time T DHW 2 des gt used in second enable time T DHW 3 des gt used in third enable time of hot water program BoB Value Operation Without Burner Energy saving function for solar or solid fuel integration For settings gt 0 the burner is not activated for hot water preparation until the hot water temperature has dropped below the temperature setting by the set value the switching hysteresis Circ Pump HW Circulation with hot water On gt The circulation pump runs when the hot water is enabled but the circulation program is disabled Antilegion Hot water short time heating function On gt Activation of hot water short time heating function Every 20th time that heating takes place or once per week on Saturday at 01 00 hrs the storage tank is heated up to 65 C It is possible to set up your own hot water short time heating function using the third hot water enable facility User Area Heatcircuit 1 2 Designation Value range Standard IV Operation Standby aes Automa
35. HC1 Buffer middle 7 F1 Buffer bottom solar zone Buffer bottom 8 F11 VF Flow sensor HC 1 Sensor multifunction 1 9 F12 SPF Storage tank sensor bottom Sensor multifunction 2 10 F13 PT 1000 Heat generator 2 Solar collector 2 Sensor multifunction 3 11 F14 PT 1000 Solar collector 1 Sensor multifunction 4 12 F15 FBR Terminal 1 Room sensor HC2 0 10V input 13 F17 FBR Terminal 3 Room set value Telephone switch HC2 Return flow sensor refrigeration machine 14 eBUS Combustion machine DCF 0 10V for heat generator 15 eBUS Combustion machine DCF 0 10V for heat generator 16 H CAN BUS High data line 17 L CAN BUS Low data line 18 CAN BUS Power supply measurement 19 CAN BUS Power supply Choice of installation Part 4 Installation and Start up Choice of installation Installation 01 Merlin 4034 gt cascade controller for modulating boiler Terminal assignment Sensors 1 GND 2 GND 3 GND 4 GND 5 GND 6 6 GND 7 GND 8 GND 9 GND 10 GND 11 GND Outdoor sensor Collector sensor Storage tank sensor Flow sensor Heatcircuit 2 Optional FBR2 FBR1 for Heatcircuit 1 Optional room sensor for Heatcircuit 1 Flow sensor Heatcircuit 1 Optional hot water tank bottom Optional multifunction relay sensor 3 PT1000 but not for collector pump Optional multifunction relay sensor 4 PT1000 but not if circulation time applies 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 13 GND 14 15
36. Installation and Operating Manual Merlin 5064 V3 System Manager Please observe the safety instructions and read through this manual carefully before commissioning the equipment Safety information Safety information Power connection regulations Please note the connection conditions specified by your local electrical power supply utility and the VDE regulations Your heating control system may be installed and serviced only by appropriately authorised specialists A For fixed devices a facility for mains disconnection in accordance with EN 60335 must be installed in compliance with the installation specifications e g switch A The mains lines insulation must be protected against damage caused by overheating e g insulation hose A The minimum distance to installation objects in the vicinity must be chosen so that the permitted ambient temperature is not exceed during operation see table Technical Data A If the system is not installed properly persons using it are at put at risk of fatal or serious injury electric shock Ensure the controller is de energized prior to performing any work on the controller Warranty conditions If the system is not installed commissioned serviced and repaired professionally this will render the manufacturer s warranty null and void Important text passages Important information is highlighted with an exclamation mark A This attention symbol indicates d
37. M BM8 and Lago FB for each heating circuit The operating module allows various operation control functions and monitoring functions for the system values to be relocated to the main controlled a I EE zone i e the living room i oe This achieves maximum comfort and convenience AA z q ry A detailed description of the entire functional range is ha i found in the technical descriptions of the operating modules Display of the system parameters Entry of the heating circuit parameters Room temperature control Automatic adaption of the heat slope not for Lago FB Remote control FBR2 Connection for HC1 Connector 5 GND 6 Connection for HC2 Connector 12 GND 13 e Rotating potentiometer for modifying the room temperature setting Adjusting range 5 K e Room control via the integrated room sensor e Rotating switch for selecting operating mode Standby OFF frost protection only Automatic mode acc to timer program 1 in controller Automatic mode acc to timer program 2 in controller 24 hour night operation reduction temperature 3 24 hour daytime operation comfort temperature Fy Summer mode heating OFF hot water only Depending on the version your FBR supports a portion of the following operating modes The operating mode at the controller must be set to The controller can also be operated with an FBR1 Telephone switch The heating system can be sw
38. S available and deactivated In the case of boilers with the same output a boiler release is sufficient e g HS1 01 gt 01 HS1 02 gt 01 HS2 01 gt 01 etc depends on the number of heat generators Automatic assignment After restarting or after a new configuration the controller searches the bus systems for a heat generator Within this time period approx 1 min no manual output entries are allowed Display SCAN In the case that a heat generator answers with output information this output is automatically entered into the list In the case that a heat generator answers without output information 15kW is entered into the list This value can then be adjusted manually Part 4 Installation and Start up Part 4 Installation and Start up Designation Value range _ Standard IV MF 1 4 Func 00 34 00 00 01 02 T MF 1 4 Setpoint 30 C 90 C 30 C MF 1 4 Hyst 2K 10K 5K MF 1 4 Hyst Off 2K 10K 2K F15 Function 00 05 00 BUS ID HC1 00 15 01 BUS ID HC2 00 15 02 5K SENSORS 5K 1K 5K Auxiliary relay functions The multifunction relays MF relay is assigned one basic function respectively MF 1 Mixing Valve HC1 OPEN MF 1 Func 00 MF 2 Mixing Valve HC1 CLOSED MF 2 Func 00 MF 3 Collector pump MF 3 Func 01 MF 4 Circulation time MF 4 Func 02 If this basic function of a MF relay is not required configuration of the installatio
39. Storage DHW BU 3 Sol Kick Period sec Sol Kick Pause min Sol Kick Gradient min General information Part 3 General function description Heating circuit control Weather dependent control Room sensor influence Hot water generation BoB gt operation without burner Frost protection function eBUS burner controls EEPROM check Circulation pump control Switched according to heating requirement Switched according to heating limits Delayed pump switch off Pump blocking protection Mixer motor blocking protection T Flow cooling only in installation cooling mode Part 4 Installation and Start up Installation Assembly Dismantling Connecting instructions Connection diagram Choice of installation Installation 01 Merlin 4034 gt cascade controller for modulating boiler Terminal assignment Installation 02 Merlin 4834 gt cascade controller for switching boiler Terminal assignment Installation 03 Merlin 3611 gt 0 10V controller Terminal assignment Installation 04 Merlin 0634 gt Standard controller with 2 stage HS Terminal assignment Installation 05 2HS controller gt 2 HS cascade switched via relay Terminal assignment Installation 06 Merlin 6644 gt Pellet and buffer controller Terminal assignment Installation 06 Merlin 6644 gt Pellet and buffer controller with combination storage gt with parameter settings Terminal assignment Installation 07 Merlin 1144 gt Mixer valve extension
40. Valve Heatcircuit 2 closed Mixing Valve Heatcircuit 1 open Mixing Valve Heatcircuit 1 closed HS1 Pump Circulation pump Power supply of relay via fuse e g bridge to 22 L17 Part 4 Installation and Start up Installation 04 Merlin 0634 gt Standard controller with 2 stage HS AF i E e CAN BUS Terminal assignment Sensors 1 GND 2 GND 3 GND 4 GND 5 GND 6 6 GND 7 GND 8 GND 9 GND 10 GND 11 GND Outdoor sensor HS sensor Storage tank sensor Flow sensor Heatcircuit 2 Optional FBR2 FBR1 for Heatcircuit 1 Optional room sensor for Heatcircuit 1 Flow sensor Heatcircuit 1 Optional hot water tank bottom Optional multifunction relay sensor 3 PT1000 but not for HS1 Pump Optional multifunction relay sensor 4 PT1000 but not if circulation time applies 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 13 GND 14 15 16 17 18 19 Optional room sensor for Heatcircuit 2 Optional eBUS DCF Data line CAN BUS Power supply CAN BUS Choice of installation W2 _ FBR en aii aE e Egi m2 m 2 4 4 N conductor mains Power supply unit Pump Heatcircuit 1 Pump Heatcircuit 2 Storage charging pump Mixing Valve Heatcircuit 2 open Mixing Valve Heatcircuit 2 closed HS1 Module 1 HS1 Module 2 directional contact Mixing Valve Heatcircuit 1 open Mixing Valve Heatcircuit 1 closed Collector pump Circulation pump Power supply of relay via fuse e
41. a Software number XXX XX Display software number with index please specify if you experience problems have questions about the controller Cascade manual operation only with code number only for cascades in Service operation mode Use F button to open level and search using After selecting the heat generator with the F button an output can be selected for this boiler With respect to multi stage heat generators the second stage can be activated by means of presetting an output value gt 50 After closing the service functions the entries are reset automatically Burner time and Burner starts For example select Burner time F button gt Shows the current values gt Reset display Use the F button to select the boiler and the level Use the F button to Reset Use the F button End gt to exit the level STL test Start the STL test F button Use to search for the boiler Use the F button to select the boiler gt Display heat generator temperature Press and hold the Start button until the STL is activated Burner ON all pumps OFF and all mixers CLOSED The temperature can be observed in the display Service By date Activation by entering date for the yearly service message Delete programmed annual message Set the value date gt year to Off lt 01 in the General Service Customer Service level After operating hours Activation by entering operating hours of the instal
42. age gt with parameter settings For this installation it is necessary to change the following parameters after selecting 06 DHW Load Through must not be activated e Buffer 02 combination storage e Heatcircuit 2 HC Function Return flow Heatcircuit 2 as return flow temperature increase via mixing valve e MF 4 Func 23 Solar e T MF4 Setpoint 60 Max DHW Storage for solar charge e MF4 Hyst 5K Switch on difference Terminal assignment CAN Bus Sensors Mains 1 GND Outdoor sensor 20 N conductor mains 2 GND Collector sensor 21 Power supply unit 3 GND Storage tank sensor 24 Pump Heatcircuit 1 4 GND Return flow sensor Pellet boiler 26 Storage charging pump 5 GND Buffer storage tank sensor top 27 Mixer return flow temperature increase open 6 GND Buffer storage tank sensor middle 28 Mixer return flow temperature increase close 7 GND Buffer storage tank sensor lower 29 30 HS1 pellet boiler 8 GND Flow sensor Heatcircuit 1 32433 HS2 solid fuel boiler 9 GND Hot water tank bottom 34 Mixing Valve Heatcircuit 1 open 10 GND Sensor Solid fuel boiler HS2 PT1000 35 Mixing Valve Heatcircuit 1 closed 11 GND_ Sensor Solar collector PT1000 36 HS1 pump 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 37 Solar pump 13 GND Optional room sensor for Heatcircuit 2 38 Power supply of relay via fuse 14 15 Optional eBUS DCF e g bridge to 22 L1 16 17 Data line
43. angerous situations Note The operating manual describes the maximum version of the controller meaning that not all statements are relevant for your device a The hydraulic diagrams contained in these operating and installation instructions are schematic diagrams They are designed to assist you in selecting the correct program and in no way describe or replace system planning according to good professional practice for this reason it cannot be guaranteed that systems built on the basis of a ono to one copy of these diagrams will function correctly General information General Notes With regard to installation operation and maintenance the following instructions must be observed This device must only be installed by a specialist technician Improperly performed repairs can subject users to considerable risks iy To comply with applicable regulations the instructions for assembly and operation must be readily available at all times and must be handed over to the responsible engineer when working on the device for his attention Description Declaration of conformity CE This device corresponds to the requirements of the relevant guidelines and standards if the corresponding regulations and the manufacturer s instructions are complied with Function The device contains a number of functions and must be set in accordance with use The following functions are mapped in the System Manager e C
44. ans of charging pumps To comply with the hydraulic system shown a collector pump 23 is programmed to MF4 Switching between the different storage tanks is done via the switch over valves 07 gt DHW to BU 08 gt BU to Sp3 09 gt DHW to Sp3 if no BU is present The charging priorities are fixed and cannot be modified Prio 1 gt Hot water tank Prio 2 gt Buffer storage Prio 3 gt Pool or storage tank 3 3 In the case of an East West installation 2 separate collector fields collector pumps for the individual collector fields are programmed to MF4 and MF3 If there are multiple storage tanks these are separated by switch over valves 07 08 09 on MF1 or MF2 4 In the case of cascade storage with transfer pumps the pump can also be controlled by function 30 DHW or 31 BU 5 If one or more than one storage tanks are charged using a heat exchanger the collector pump must be programmed to MF4 23 The pump between heat exchanger and storage is programmed as a collector pump 23 to a different MF relay A In the case of an East West installation the second collector must be integrated via MF3 23 PT 1000 sensor Part 4 Installation and Start up Accessories Accessories The operating module Merlin BM BM 8 and Lago FB Only for controller models with CAN Bus connection Electrical connection Connector 16 17 18 19 The controller permits connection via a bus line of an operating module Merlin B
45. ascade modulating boiler Cascade modulating boiler Control of 2 HS or 2 stage HS via relay Pellet function leading HS swtich off Service water heating system 2 mixed heating circuits and 2 extra functions use as fixed value pump heating circuit possible Heating operation via buffer storage possible Solar functions Cooling operation Demand related circulation pump control Automatic toggle between summer and winter time Activation of a timer for the entire heating system possible General information Contents General information Safety information Power connection regulations Warranty conditions Important text passages Note General Notes Description Declaration of conformity Function Contents Part 1 Operation Normal Mode Control elements in normal mode Display line functions in normal mode Setting the mode as well as the Party Reducing and the Direct Holiday Function Selecting an operating mode Effect of the operating mode Operating mode Control elements in operating mode Display in operating mode General operating procedure Selectable functions with the F buttons Areas Type of set values Display User Time program Time Date Service Expert Expert HS only for HS via BUS Levels Assignment of the set values Installation Hot Water Heatcircuit 1 2 Solar MF Part 2 Overview of display values and settings Display Range Installation T Outside F9 Ext setpoint F15
46. boiler temperature exceeds the maximum flow temperature of the direct heating circuit by 8K the heating circuit pump for this circuit is switched off overheating protection The heating circuit pump is switched on again when the boiler temperature drops below the temperature maximum flow temperature 5K T HS DHW increase during HW operation Heat generator setting with hot water preparation hot water temperature setting T HS DHW The boiler must be run at a higher temperature during hot water preparation so that the hot water temperature in the storage tank can be reached via the heat exchanger Part 2 Overview of display values and settings Hysteresis DHW hot water hysteresis Hot water preparation is started when the temperature of the hot water storage tank drops below the temperature setting by the hysteresis Hysteresis DHW The hot water preparation stops when the storage tank reaches the temperature setting the temperature setting is set to 65 C during hot water short time heating operation DHW Followup pump run down time 00 min gt Standard function The charging pump continues to run for 5 minutes after the burner has switched off If heat is requested by a heating circuit the run down is cancelled The charge pump blocking kicks in and can also cause the run down function to be cancelled greater than 00 min gt The charge pump runs down by the set time when storage tank charging is complet
47. by the hysteresis Hyst Burner 2 5K Switching off occurs when the temperature drops 5K below the switch on temperature Warm up Temp Switching off occurs when the temperature of the solid fuel boiler drops below the set limit temperature Min T HS2 by 5K The pump is enabled again when the Expert area temperature of the solid fuel boiler exceeds the set limit temperature Min T HS2 Buffer heater buffer storage type After activation 01 or 02 it is not possible to connect a FBR for heatcircuit 1 00 no buffer storage for heating operation 01 Buffer storage for heating operation F2 F3 HS1 is activated with reference to sensor buffer top F3 DHW Relief operates on sensor buffer top HW charge pump ON Upper buffer gt HWactual 5K Hysteresis HW charge pump OFF Upper buffer lt HWactual 02 Combination storage tank for heating and HW operation HS1 is activated with reference to sensor buffer middle F2 DHW Relief operates on boiler sensor BS HW charge pump ON BS gt HWactual 5K Hysteresis HW charge pump OFF BS lt HWactual 03 passive buffer storage for heating operation F1 F3 The buffer will not load by the conventional Heat generator producers The use occurs e g through solar buffer loading Buffer charging pump return flow temperature increase or transfer pump for buffer storage sensor usable In this attitude no change of the regulation of the h
48. ce 0 For one off heating requirements during the night reduction the heating pump continues to run until the next heating period is reached see chapter entitled Circulation pump control T Room adj Room sensor adaptation In the case of room control e g with FBR the measurement can be corrected using this setting if the room sensor is not measuring correctly User Area Heat up opti heatup optimisation Activation of function for automatically bringing forward the start of heating Example Heating program 6 00 hrs 22 30 hrs OFF Building starts to be heated at 6 00 hrs ON Depending on weather and room temperature heating starts soon enough so that building just reaches the set room temperature at 6 00 hrs 00 gt start of heating not brought forward 01 gt brought forward depending on weather 02 gt brought forward depending on room temperature Only active if an FBR analogue room device is connected room sensor operating mode selection Heatup optimisation occurs only if the reduced time of the heating circuit is at least 6 hours Max Opt Time Maximum bring forward Only active with Optim Heat T Outside or T Room The start of heating is brought forward by no more than this time Opt reduced Reduction optimisation Automatic reduction of burner disabling to end of set heating time The burner is not restarted before the end of the heating period during the set time period
49. crease is less the switch off point is increased linearly up to Max T HS Expert area HS emergency cooling HS Cool fct activation of the emergency cooling function for HS with T HS Cool starting temperature for cooling Valid for the first boiler and the solid fuel boiler multifunction relay or boiler 2 If the emergency cooling function for the heat generators is activated HS Cool fct On then the heating circuits commence operation with Max T Flow provided emergency cooling is permitted in the heating circuit as soon as the set temperature T HS Cool is exceeded by one of the heat generators The emergency cooling function terminates when the temperature drops below the starting temperature T HS Cool by 5K Expert area Part 2 Overview of display values and settings Switching pattern for 2 stage burners This switching patterns is also effective for operating two switching heat generators via the burner relays A6 and A7 Switch on the 1st Burner stage when temperature drops below set temperature of the heat generator Switch off the 1st Burner stage when the temperature setting is exceeded by the hysteresis Switch on the 2nd Burner stage after start of 1st Burner stage and temperature drops below set temperature by 5K A Boiler temperature B Time i Start of the Block Time C Boiler temperature setting and expiry of the Block Time D Block Time blocking time 2 burner stage Relea
50. de temperature C Heat slope diagram setting aid Part 2 Overview of display values and settings Set values for cascade control only for cascades Cascade Designation Value range Standard IV Detected HSS Display only Capacity Stage 00 9950 kW 00 kW BUS Scan On Off Off Min Mod Cascade 00 100 00 DHW HS 01 08 00 Control Deviation K Display Desired Output 0 100 Display Switch Value 99 0 99 Display Block Time Remaining Display min Max T Module 50 C 110 C 90 C Dyn Upward 20 500 K 100 K Dyn Downward 20 500 K 100 K Reset Time 5 500 50 Modulation Max 50 100 80 Modulation Min 10 60 30 Min Mod HS 0 60 30 Modulat DHW 40 100 80 Sequence 1 12345678 Sequence 2 87654321 Sequ Change Sequence 1 01 Sequence 2 Timed 1 2 switch Rotating Sorting Time Seq Mod 0 800 hours 0 hours Block Time 00 min 30 min 00 min Use the F button End to exit the level Expert area Detected HSS number of heat generators Display of heat generators automatically reported via BUS with bus ID boiler no An X on the display indicates that a heat generator has responded on the BUS Capacity Stage heat generator output for each stage Display of the HS number and the stage gt Selection with Prog button gt Input Adjustment of HS output Stage HS not available
51. e The after run can only be cancelled by the activated charge pump blocking Therm Input storage tank with thermostat 00 gt Hot water preparation via storage tank sensor 01 gt Hot water preparation via thermostat The hot water preparation is started by a short circuit at the storage tank sensor connecting terminals It stops when the short circuit is removed Wall Hung for modulating HS Boiler temperature setting with hot water preparation hot water actual temperature T HS DHW With this function the exhaust gas losses occurring during hot water preparation can be reduced with modulating heat generator using the adapted boiler temperature setting Load Through only with F12 T DHW B The charge through function can be activated by connecting a hot water storage tank bottom sensor T DHW Temperature of hot water tank in removal area Storage tank charging ON T DHW lt T DHW Rated Hysteresis DHW OFF T DHW B gt T DHW Rated The charging process of the storage tank only terminates when the lower storage tank set temperature has been reached Part 2 Overview of display values and settings The parameters in this level change in accordance with the heating circuit function that has been selected HC FUNCTION Heatcircuit 1 2 Designation Value range Standard IV HC Function Standard Standard T Circuit Fxd Pool HW Return Pump Mode Standard
52. e infeed of alternative energy Mod depth Display the required degree of modulation calculated and the current modulation levels for all active heaters The ad is only when the corresponding figures are available configuration BUS etc Hot Water T DHW Rated hot water set temperature Display of the currently valid value for control T DHW hot water temperature F6 Display of measured upper storage tank temperature DHW T B storage tank bottom temp F12 For example for solar or solid fuel infeed or for active charge through function CHARGE THROUGH 01 Display hot water tank temperature in infeed area T Circulation return flow temperature of circulation Only if temperature control of the circulation function is activated Display Range Heatcircuit 1 2 T Room Current room temperature and current room set temperature as per heating program and operating mode Humidity Display of room humidity if value is available T Pool Current pool temperature and pool set temperature T DHW Current warm water temperature and warm water set temperature T Flow Current flow temperature and current flow set temperature Circuit release Heating circuit in heating mode On Off CH Pump Status of the heating circuit pump On Off Need Opti Time Previous time required to heat up with heat up optimisation activated
53. e input IMP F17 is detected at this position an FBR is evaluated at F15 and F17 If F17 is used bya different function an RFB is evaluated at F15 01 0 10V input for presetting an external collector set temperature On evaluation see Parameter V Curve in the Expert Installation level 02 Light sensor gt without function 03 0 10V input for presetting an external modulation depth On evaluation see Parameter V Curve in the Expert Installation level 04 secondary sensor for MF function 05 storage tank 3 e g pool Bus ID heating circuit number The heating circuits are sequentially numbered starting with 01 heating circuit numbers must not be assigned twice Please only use 00 for replacement controllers see page 52 Sensors Selection of the installed sensors 5k Sensors 5kOhm NTC sensors 1k Sensors 1kOhm PTC sensors Code No required Error Messages Part 5 Appendix Error Messages Error TAT Communication error O OOOO O O error E90 Adr 0 and 1 on bus Bus IDs 0 and 1 may not be used simultaneously Sensors All sensors can be checked in the General Service Sensor test level All the sensors that are connected must appear in this level with plausible measurements Actuators Mixer motor pumps gt only with code no All actuators can be checked in the General Service Relay test level All relays can be individually switched using this level This makes it easy to check w
54. e set heat slope to suit the measured outside temperature in such a way that the set value for the room is approximately set if the heating system is configured correctly gt Exact setting of the heat slope is extremely important for weather dependent control The circulation pump is controlled weather dependently The circulation pump is switched on if there is a heating demand and in Frost protection mode Room sensor influence The current room temperature can be included in computation of the required flow temperature via a present room temperature sensor The influence factor parameter list can be set between 0 fully weather dependent regulation and 20 room temperature regulation with minimal outdoor temperature influence Position deactivates room temperature control Positions and 0 indicate differences for demand dependent circulation pump control Hot water generation The programmed hot water temperature is stabilised by switching the hot water storage charging pump and the burner Storage tank charging starts when the storage tank temperature drops below the temperature setting by 5K Storage tank charging stops when the temperature setting is reached BoB gt operation without burner For operation with solar energy for instance In this operating mode the burner is only enabled when values drop below the set tolerance limit Frost protection function The frost protection circuit prevent
55. eating takes place in relation to the without buffers Cool Operation Space cooling via operating mode The mode of operation cooling and the necessary settings are released In the mode of operation cooling the heating circles can be used for the cooling of the room For this function a refrigerating machine is necessary F15 function sensor function for F15 00 Room sensor for heatcircuit 2 if a further sensor at the pulse input IMP F17 is detected at this position an FBR is evaluated at F15 and F17 If F17 is used bya different function an RFB is evaluated at F15 01 0 10V input for presetting an external collector set temperature On evaluation see Parameter V Curve in the Expert 0 10V 1 O level 02 Light sensor gt without function 03 0 10V input for presetting an external modulation depth On evaluation see Parameter V Curve in the Expert 0 10V I O level 04 secondary sensor for MF function 05 storage tank 3 e g pool Expert area Set values for heat generators Heat generator Designation Value range Standard IV Max T HS1 30 C 110 C 85 C Min T HS1 10 C 80 C 40 C Min T HS2 10 C 80 C 40 C Max T Header 30 C 110 C 85 C Min T Header 10 C 80 C 40 C Warm Up Temp 10 C 85 C 35 C Min Delimi 00 01 02 00 Hysteresis 5K 20K 5K or Hyst HS Hysteresis time 00 min 30 m
56. ection only The water temperature and the current set value are displayed in the display level T Pool T Pool Desired HW gt Hot water circuit Commissioning This function can be used to operate additional hot water circuits The heating circuit flow sensor is located in the hot water storage tank The hot water temperature set value can be entered in the user area of the associated heating circuit level T DHW 1 2 3 The heating program for the heating circuit acts as an enable program for the storage tank The storage tank set value is set to 10 C during the reduction period The boiler controller hot water priority function can be used partial priority acts like priority Return flow gt Return flow temperature increase via mixer motor only for heating circuit II The heating circuit flow sensor is used as a boiler return flow sensor The mixer motor controls to the heating circuit set value for 24 hours Min T Flow Installation tip Mixer Open gt boiler flow is fed into the return gt return flow temperature increase Mixer Closed gt heating circuit return is passed through When the mixer motor is open it must be ensured that there is circulation through the boiler boiler pump Capacity Stage HS output for each stage Only for cascades Display of the HS number and the stage gt Selection with Prog button gt Input Adjustment of HS output Stage HS not available 0 Stage H
57. elected this also displays no change to preset gt values retain their previously defined status values on delivery Merlin 0634 2 stage burner hot water preparation two mixed heating circuits 01 4034 gt cascade controller for modulating boiler 02 4834 gt cascade controller for switching boiler 03 3611 gt 0 10V controller 04 0634 gt Standard controller with 2 stage HS 05 2HS controller gt 2 HS cascade switched via relay 06 6644 gt buffer and pellet controller with solar function 07 1144 gt Mixer valve extension 09 0321 gt Cooling function in heating circuit return 10 0321 gt Central cooling function and solar integration HS1 Type first heat generator type 00 No heat generator Mixer valve extension 01 Single stage HS switching 02 Single stage modulating 03 2 stage HS switching second stage via A7 04 Two individual HS switching second HS via A7 05 Multistage switching cascade via BUS 06 Multistage modulating cascade via BUS Part 2 Overview of display values and settings HS1 BUS connection for HS 00 Relay gt Standard switching HS 01 CAN BUS gt Standard cascade switching 02 eBUS gt HS without temperature controller gt Preset modulation depth gt Standard cascade modulating 03 eBUS gt HS with temperature controller gt Preset desired temperature not suitable for cascade 04 0 10V Prese
58. er off until switching the next layer on 00 10 sec For correct settings also ensure the internal Block Time for the closed burner control Hyst Burner 2 for solid fuel 2nd burner only for 2 stage burners or solid fuel integration Solid fuel integration Hysteresis for the charging pump 2 Burner 2 and burner stage 2 see next page gt Switching pattern for 2 stage burners Gradient method only applies for HS 1 This method permits early switch off of a heat generator when heat consumption is low Example Pellet boiler gt When heat consumption is low a pellet boiler may possibly need to be switched off before the set temperature is reached burnt out The optimum switch off point is determined from the speed of the temperature increase of the pellet boiler K min gradient Gradient On Switch off according to gradient method Off Switch off by set value Hysteresis Max reduce The value set determines the earliest switch off point as a difference to the maximum temperature Max T HS for heat generator HS1 Min switch off point Max T HS Max reduce Dyn cutoff Load sensitive premature deactivation of the HS by the gradient of the temperature increase K min When the HS is operating without load the gradient value is high When the HS reaches or exceeds the gradient set here the HS is switched off at the earliest dynamic switch off point Max T HS Max reduce If the temperature in
59. erature gt room set value 1K e Weather dependent control during heating operation OFF Outside temperature gt room set value e Weather dependent control during reduction operation Room Influence 0 OFF The switch off occurs during the transition to reduction operation The pump runs continuously after being switched on ON Room temperature lt room set value Room Influence OFF Flow temperature setting lt 20 C Heating limits gt Pump switching in accordance with heating limits e Heating time OFF Outside temperature lt set heating limit day e Reduction period OFF Outside temperature lt set heating limit night Only timeprog gt Pump switching as per heating program Heating time Pump is ON Heating circuit is enabled Reduction period Pump is OFF Heating circuit is blocked Continuous The pump runs continuously for 24 hours The heating circuit is permanently enabled Expert area Mixer Open open mixer dynamic Speed setting at which the mixer opens when a control difference occurs The control difference at which the mixer opens without interruption is entered in Kelvin Small values cause the mixer to adjust quickly and can lead to oscillation Mixer Close close mixer dynamic Speed setting at which the mixer closes when a control difference occurs The control difference at which the mixer closes without interruption is entered in Kelvin Small values cause the mixe
60. eresis MF 1 HYST 26 Return flow temperature increase HS via buffer storage ON T BUFFER B F1 gt T MF1 MF 1 HYST 5K OFF T BUFFER B lt T MF1 MF 1 HYST The valve to the return flow temperature increase via the buffer storage is opened if the temperature buffer storage low T BUFFER B exceeds the return flow temperature of the installation sensor 1 or 1 4 by the Hysteresis MF 1 HYST 5K It is switched off again when the temperature buffer storage low drops below the return flow temperature 27 Storage charging pump 1 pump operates when the hot water tank can be charged by the solar system The temperature of the medium used for charging the storage tank is always measured at the MF4 sensor T MF4 Exception In the case of function 23 at MF4 the sensor assigned to the MF relay storage charging pump 1 is used to determine the temperature of the medium used for charging the storage tank T SOLAR T SOLAR T MF4 Temperature of the solar collector T SOLAR T MF 1 3 Temperature of the heat exchanger T DHW B F12 Temperature of hot water storage tank in infeed area Part 4 Installation and Start up ON T SOLAR gt T DHW B MF HYST OFF T SOLAR lt T DHW B MF HYST OFF The pump is switched on when the temperature of the solar collector exceeds the temperature of the storage tank in the infeed area T DHW B by the Hysteresis MF HYST Switching off occurs when the temperature drop
61. es or OK Start installation 1 Set value or use Standard to load the standard value OK Save value and next value o OM NO aA FF Q The installation must be completely finished gt standard display 10 Press the Home button to switch between normal and operating mode 11 Press the F button 4 program switch and use to adjust the operating mode e g Automatic 1 see page 7 Setup All the values in this level must be entered in sequence without interruption Language Set language Time Set the hour and minute Date Set the year month day Designation Value range Standard IV Plant select 01 10 HS1 Type 00 06 03 HS1 BUS 00 05 00 HS2 Type 00 22 00 Storage HS2 00 03 00 Buffer 00 01 02 00 Cool Operation OFF ON OFF Gradient On Off Off HC Function Standard Standard T Circuit Fxd Pool HW Return HC Function See HC1 Standard Capacity Stage 00 9950 kW 00 kw BUS Scan On Off Off See following pages for continuation Basic settings English Select the language Time Enter the current time Year Month Day Enter the current date Configuration Plant select selecting basic controller functions This set value can be used to preset the other values of the start up level see also installation description on page 40 When the installation set value is selected this also dis
62. etting during night reduction T Absence Required room temperature setting during holidays T Room cooling only in cooling mode Starting condition for cooling function to room temperature 12 Without effect gt Cooling operation enabled Part 2 Overview of display values and settings If the operating mode Cooling is activated at the central control this temperature is used as the set room temperature for this heating circuit Cooling operation is activated when the temperature is exceeded Cooling mode ends when the temperature drops 2K below Min TO cooling only in cooling mode Starting condition for cooling function to outside temperature Without effect gt Cooling operation enabled If the operating mode Cooling is activated at the central control cooling operation is activated for this heating circuit when the outside temperature exceeds the temperature set here Cooling mode ends when the temperature drops 1K below If starting conditions are set for room as well as outside temperature both conditions must be met before cooling operation starts T Limit Day T Limit Night Only valid if the function is activated gt Set value Expert Heating circuit Pump function heating limits gt Pump switching according to heating limit If the outside temperature that is measured and calculated by the controller exceeds the heating limit specified here heating is disabled the pum
63. fects the room temperature later accordingly With light structures walls have no storage effect the delay should be set 0 hrs Slope Offset heating slope distance The boiler temperature that is required for a mixer circuit is calculated by adding the calculated temperature setting for the heating circuit flow to the heating curve distance The heating curve distance compensates for sensor tolerances and heat loss up to the mixing valve Part 2 Overview of display values and settings B Heat Sink circuit enable On gt The heating circuit can be used by higher order functions e g emergency cooling function of a heat generator to protect from overheating heat removal during service mode as a heat sink consumer The heating circuit is heated at the maximum flow temperature setting for the duration of the function Part 2 Overview of display values and settings Auxiliary relay functions The multifunction relays MF relay is assigned one basic function respectively MF 1 Mixing Valve HC1 OPEN MF 1 Func 00 MF 2 Mixing Valve HC1 CLOSED MF 2 Func 00 MF 3 Collector pump MF 3 Func 01 MF 4 Circulation time MF 3 Func 02 If this basic function of a MF relay is not required configuration of the installation in Installation level any one of the functions described below may be selected for any unused relay The MF relay 1 4 A8 A12 is always assigned with a sensor 1 4 F11 F 14 applies for
64. ffer T gt T MF SETPOINT ON T Buffer T lt T MF SETPOINT 5K Switching off occurs when the storage tank temperature exceeds the set limit temperature T MF SETPOINT The pump is enabled again when the storage tank temperature drops below the limit temperature by 5K 29 Storage charging pump 3 pump operates when the storage tank 3 can be charged by the solar system and the buffer storage tank can not be charged by the solar system The temperature of the medium used for charging the storage tank is always measured at the MF4 sensor T MF4 Exception In the case of function 23 at MF4 the sensor assigned to the MF relay storage charging pump 3 is used to determine the Commissioning temperature of the medium used for charging the storage tank T SOLAR T SOLAR T MF4 Temperature of the solar collector T SOLAR T MF 1 3 Temperature of the heat exchanger T Storage 3 F15 temperature of storage tank 3 in the infeed area ON T SOLAR lt T Storage 3 MF HYST OFF T SOLAR lt T Storage 3 MF HYST The pump is switched on when the temperature of the solar collector exceeds the temperature of the storage tank in the infeed area T Storage 3 by the Hysteresis MF HYST Switching off occurs when the temperature drops below the temperature T Storage 3 MF HYST OFF Safety system protection OFF T Storage 3 gt T MF SETPOINT ON T Storage 3 lt T MF SETPOINT 5K Switching off occurs w
65. functions starting from 20 only If an additional sensor is required for a function it should be connected as F15 The functions that may be selected for the MF relays yie 4 are described using MF relay 1 as an example Solar MF Designation Value range Standard IV MF 1 4 FUNC 00 34 00 00 01 02 T MF 1 4 Setpoint 30 C 90 C 30 C MF 1 4 Hyst 2K 10K 5K MF 1 4 Hyst Off 2K 10K 2K Max T Solar 80 C 180 C 110 C Min T Solar on 20 C 95 C 40 C Min T Solar off 20 C 95 C 35 C T Solar protect 80 C 180 C 110 C Rflow cool diff OK 30K OK Max T Storage DHW 10 C 130 C 60 C Max T Storage BU 10 C 130 C 85 C Max T Storage 3 10 C 130 C 30 C Sol Kick Period Os 59s Os Sol Kick Pause 10 60min 30min Sol Kickgradient 01 05min 01min Use the F button End to exit the level Must be observed Operation as 1144 Selectable MF functions gt 02 03 12 13 20 21 24 25 33 34 Operation as 1144 The circulation pump is not started automatically during the hot water short time heating function If an MF solar function 07 08 09 23 27 28 29 has been activated another external solar controller may not be connected for solar function see Installation gt Solar installations Examples a Expert area MF 1 Func function selection relay MF1 T MF1 Set
66. g bridge to 22 L1 Choice of installation Part 4 Installation and Start up Installation 05 2HS controller gt 2 HS cascade switched via relay a a ER D y O y i i i j vF 1 VE i gt a i eS H i m m TE eo f mg q 2 I g e al a cS a Ea a on i Terminal assignment Sensors Mains 1 GND Outdoor sensor 20 N conductor mains 2 GND Collector sensor 21 Power supply unit 3 GND Storage tank sensor 24 Pump Heatcircuit 1 4 GND Flow sensor Heatcircuit 2 25 Pump Heatcircuit 2 5 GND 6 Optional FBR2 FBR1 for Heatcircuit 1 26 Storage charging pump 6 GND Optional room sensor for Heatcircuit 1 27 Mixing Valve Heatcircuit 2 open 7 GND 28 Mixing Valve Heatcircuit 2 closed 8 GND Flow sensor Heatcircuit 1 29 30 HS1 9 GND Optional hot water tank bottom 32 33 HS2 a 10 GND 34 Mixing Valve Heatcircuit 1 open 11 GND _ 35 Mixing Valve Heatcircuit 1 closed 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 36 Pump HS1 13 GND Optional room sensor for Heatcircuit 2 37 Pump HS2 14 15 Optional eBUS DCF 38 Power supply of relay via fuse 16 17 Data line CAN BUS e g bridge to 22 L1 18 19 Power supply CAN BUS Part 4 Installation and Start up Installation 06 Merlin 6644 gt Pellet and buffer controller For this installation it is necessary to program the solar function separately after selecting 06 The return flow temperature increase of the pellet boiler ca
67. g to HW program bp Service automatic reset after 15 min The heat generator regulates to the maximum heat generator temperature When the heat generator temperature has reached 65 C the consumers are regulated to their maximum flow temperature to dissipate heat emergency cooling The emergency cooling function must be explicitly enabled in the consumer circuits by means of a set value B Heat sink set value Normal Mode Effect of the operating mode The operating mode set here affects the boiler regulation and the integrated heating circuits of the controller Each heating circuit can be assigned a separate operating mode from the one set by means of the operating mode parameter in the user level of the corresponding heating circuit When the Standby OFF and Summer mode operating modes are set they have a reducing effect on all the heating circuits of consumer circuits in the entire system N Operating mode Operating mode Control elements in operating mode O Home button Switch between operation of the controller and normal mode standard display _ Rotary knob Search for a level or search for a set value parameter or adjust the selected value Press F buttons e Select the adjacent level e Select the adjacent value e Select the adjacent function text To change or query set values an F button must first be pressed in normal mode gt Change display the selected value
68. han the maximum collector temperature Dyn Upward dyn heat generator connection K Small value fast connection Large value slow connection A Values set too low can lead to overheating or short term connection of a heat generator Calculation If the cumulative system deviation in Kelvin reaches the set value A this results in connection of all heat generator stages Dyn Downward dynamic heat generator deactivation K Small value fast deactivation Large value slow deactivation A Values set to high can lead to overheating and triggering the STB Calculation If the cumulative system deviation in Kelvin reaches the set value A this results in deactivation of all heat generators Reset Time reset time for Control A Control value Changing this value can cause the control system to overshoot The recommended default settings should be retained Small values cause the mixer to adjust quickly and can lead to oscillation Modulation Max If this modulation degree is exceeded the next heat generator in sequence is connected after the delay time elapses Modulation Min If values drop below this modulation degree the last heat generator of the current sequence is switched off Part 2 Overview of display values and settings Min Mod HS Connection of the next heat generator will only occur if the resulting modulation degree for the different heat generators then exceeds the value set here gt
69. he solid fuel boiler exceeds the temperature of the buffer storage in the infeed area T BUFFER B F1 by the hysteresis MF 1 HYST 5K Switching off occurs when the temperature drops 5K below the switch on temperature Switching off also occurs when the temperature of the solid fuel boiler drops below the set limit temperature T MF1 SETPOINT by 5K The pump is enabled again when the temperature of the solid fuel boiler exceeds the set limit temperature T MF1 SETPOINT Blocking HS1 ON T MF1 gt HS set temperature 5K and solid fuel boiler pump ON OFF T MF1 lt HS set temperature or solid fuel boiler pump OFF 23 Collector pump pump is operational as soon as the collector is able to charge one of the solar storage tanks Collector 1 pump only at MF4 because of sensor assignment and PT 1000 Collector 2 pump only at MF3 because of sensor assignment and PT 1000 At MF1 and MF2 this function can be used to charge the storage tank from a heat exchanger without PT 1000 sensor T COLLECTOR Temperature of the solar collector T L Temperature of active storage tank at inlet area ON T COLLECTOR gt T B MF HYST OFF T COLLECTOR lt T B MF HYST OFF The pump is switched on when the temperature of the solar collector exceeds the temperature of the active storage tank see switch over valves in the infeed area by the switch on hysteresis MF HYST Switching off occurs when the temperature d
70. hen the storage tank temperature exceeds the set limit temperature T MF SETPOINT The pump is enabled again when the storage tank temperature drops below the limit temperature by 5K 30 transfer pump DHW storage tank II The F15 function must stand on 4 Relay switches when the temperature of the hot water storage tank exceeds the temperature F15 by the hysteresis MF HYST Switching off occurs when the temperature drops below the temperature F15 MF HYST OFF 31 transfer pump buffer storage tank II The F15 function must stand on 4 Relay switches when the temperature of the buffer storage tank exceeds the temperature F15 by the hysteresis MF HYST Switching off occurs when the temperature drops below the temperature F15 MF HYST OFF 32 Direct heating circuit Heating circuit with fixed flow temperature gt T MF Des In the event of a short circuit at the assigned MF sensor via room thermostat timer switch gt Heating circuit pump ON gt Preset desired flow temperature to the HS After the sensor short circuit has been eliminated a run on time takes effect on the pump 33 Thermostat function ON T MF gt T MF DES OFF T DHW lt T MF DES 5K 34 bypass valve cooling mode The relay is switched in cooling mode gt separation of the conventional HS from the cooling circuit gt This means hot water preparation during cooling operation is possible the flow temperature for the HS co
71. hether these components have been correctly connected e g mixer motor direction of rotation Bus ID used The set bus ID is already in use by another device E 200 Communication error HS1 E 201 Communication error HS2 E 202 Communication error HS3 E 203 Communication error HS4 E 205 Communication error HS6 Internal error EEPROM error The invalid value has been replaced with the default value A Check parameter values Sensor defective break short circuit F5 Flow sensor HC2 F11 Flow sensor HC1 sensor Multifunction F1 Buffer storage tank bottom sensor BUS connection In control units with connection to Mixer gt Communication symbol appears in standard display or X depending on version or at Service Communic MM 1 HS controller gt Displays the outside and the HS temperature see Display Installation In HS controller with connection to Control unit gt Room temperature displayed and current room temperature setting blanked out see Display heating circuit In mixer expansion controllers with connection to HS controller gt Displays the outside and the HS E72 F3 Buffer storage tank top sensor F9 Outdoor sensor E76 F6 Storage tank sensor E 78 F8 Boiler sensor Collector sensor cascade Room sensor HC1 F2 Buffer middle sensor E 83 Room sensor HC2 F15 Pool sensor Storage tank 3 E 135 F12 HW Storage tank bottom sensor Multifunction
72. in 00 min Time Seq Mod 00 800 hours 00 hours Block Time 00 min 30min 00 min Hyst Burner 2 2K 20K 2K Gradient On Off Off Max reduce 1 20K 10K Dyn cutoff 0 5K min 2 K min 10K min HS Cool fct Off On Off T HS Cool 30 C 120 C 95 C Use the F button End to exit the level Part 2 Overview of display values and settings Max T HS1 Max temperature Boiler e Protects the HS from overheating prevents triggering the LIMITER H Caution Also works with hot water preparation Min T HS1 2 min temperature Boiler Decreased condensation build up in HS with low heat requirements Switching the HS off is always done earlier when achieving the HS minimum temperature MIN T HS1 2 Hysteresis standard 5 K gt see also Min Delimi Max Min T Header only for cascade See Max Min T HS 1 2 Protection from condensate Warm Up Temp Not in cascade operation Reduces operation in condensation zone The circulation pumps are switched off and the mixers are shut until the boiler has reached the start up temperature Min Delimi minimum delimiter HS Not in cascade operation Decreased condensation build up in HS with low heat requirements Switching the HS off is always done earlier when achieving the HS minimum temperature Min T HS1 Hysteresis 5K 00 Minimum delimiter for heat curve The HS switches on if the requested temperature has been exceeded by the using components 01 Minim
73. ines After connecting or modifying the connections of sensors and remote controls the controller must be briefly switched off mains switch fuse The function of the controller is reconfigured in accordance with the connected sensors the next time the controller is switched on oe Uaa A Eai ETit MLT IGE a Part 4 Installation and Start up e Part 4 Installation and Start up Connection diagram ojoj Ol al el aini a P C Se a a a ee Installation 230V Relay switching capacity 2 2 A 250V Triac switching capacity 1 1 A 250V 20 S0Hz 230V Tt N i N L1 LT TH T2 A Establish bridge to the collective terminal block Connect the collective terminal block with the same Establish bridge from terminal 22 to 38 potential Pin Senso Function 1 Function 2 Function 3 No r No 1 F9 AF Exterior sensor 2 F8 KF Sensor collector heat generator1 3 F6 SPF Storage tank sensor 4 F5 VF Flow sensor HC 2 5 F3 FBR Terminal 3 Room set value Telephone switch HC1 Buffer top 6 F2 FBR Terminal 1 Room sensor
74. ing all the bus ID s the system must be reenergised once only i Part 4 Installation and Start up Sensors Sensor values characteristic curve Temperature 5Kohm NTC 1Kohm PTC PT1000 60 C 698961 Q 470 Q 50 C 333908 Q 520 Q 40 C 167835 Q 573 Q 30 C 88340 Q 630 Q 20 C 48487 Q 690 Q 922 Q 10 C 27648 Q 755Q 961 O 0 C 16325 Q 823 Q 1 000 Q 10 C 9952 Q 895 Q 1 039 Q 20 C 6247 Q 971 Q 1 078 Q 25 C 5000 Q 1010 Q 30 C 4028 Q 1050 Q 1 118 Q 40 C 2662 Q 1134 Q 1 155 Q 50 C 1801 Q 1221 Q 1 194 Q 60 C 1244 Q 1312 Q 1 232 Q 70 C 876 Q 1406 Q 1 270 Q 80 C 628 Q 1505 Q 1 309 O 90 C 458 Q 1607 Q 1 347 Q 100 C 339 Q 1713 Q 1 385 Q 110 C 255 Q 1823 O 1 422 O 120 C 194 Q 1936 Q 1 460 Q As delivered condition 5KOhm NTC sensor The start up level for setting the installed sensors appears once after switching on the power supply and switching into operating mode It can be reactivated again by briefly switching the supply voltage off Exceptions e The sensor inputs F13 F14 must always be operated using a PT1000 sensor e Connecting an analogue remote control FBR is detected automatically Thus the previous and the new version can be connected to the controller e The controller provides the option of performing a room temperature guided control through the connection of a room sensor to the FBR terminals 1 and 2 In this
75. ing on the right side then open the controller cover A For a fixed controller Open the cover of the controller housing and loosen the fastening screws on the back Then remove the controller on the right side 2 Loosen the connection board for the control device from the backside of the cover 3 Loosen the board cover 4 Remove the board and the pull out the connectors downwards Mounting in the opposite sequence For wall mounting Open the controller housing cover Loosen the wiring if available Loosen the fastening screws see bore plan Push the controller upwards a bit and then remove it towards the front For top hat rail mounting e Open the controller housing cover For mounting with one top hat rail e Pull the left locking device downwards with a screw driver and at the same time gently remove the controller from the wall on the bottom e Remove the controller upwards For mounting with two top hat rails e Pull the right locking device upwards with a screw driver and at the same time gently remove the controller from the wall on the bottom e Remove the controller upwards Installation Connecting instructions A The controller is designed for an operating voltage of 230 V AC at 50 Hz The burner contact is potential free and must always be connected in series with the mechanical boiler thermostat if present A Attention Bus lines and sensor lines are to be installed separately from supply l
76. itched to Heating mode with a telephone switch The connection terminals of the ee A et eee ere eee controller for the remote control FBR see connection diagram are used for installation As soon as a short BE circuit is detected between terminal 6 GND at Hc1 and PP oS 13 GND at HC2 the associated heating circuit switches Il 3 E to heating circuit Additionally the hot water preparation is amar ee activated only for controllers with hot water preparation beee I kepanitiaan When the short circuit is eliminated the controller once again heats on the basis of the set heating program A Ifthe heating circuit is controlled remotely by an operating module the telephone switch must be connected at the operating module DCF receiver Electrical connection Terminal 14 15 The controller can evaluate an eBUS DCF receiver on the eBUS FA Terminals If the DCF receiver is connected the controller time is updated as soon as the DCF transmits a valid time on the BUS Sensors If the time has not been corrected after max 10 min select a different place of installation for the DCF e g another wall not in proximity to TV devices monitors or dimmers PC All system specific parameters can be set and interrogated using the ComfortSoft parameterisation software The parameters can be saved displayed graphically and evaluated on the PC at predefined intervals To connect to a
77. iter HS Hysteresis with hysteresis time Two stage heat generators Time Seq Mod time to sequence change Block Time delay time for next stage Hyst Burner 2 for solid fuel 2nd burner Gradient method Gradient Max reduce Dyn cutoff HS emergency cooling HS Cool fct activation of the emergency cooling function for HS with T HS Cool starting temperature for cooling Switching pattern for 2 stage burners Switching behaviour of the HS with gradient method Set values for cascade control Detected HSS number of heat generators Capacity Stage heat generator output for each stage BUS Scan min Mod Cascade min modulation cascade 23 DHW HS number of stages for HW operation 23 Control Deviation collector control deviation 23 Desired Output required system output in 23 Switch Value 99 99 Block Time currently remaining value Max T Module maximum temperature of the boiler Dyn Upward dyn heat generator connection K Dyn Downward dynamic heat generator deactivation K Reset Time reset time for Control Modulation Max Modulation Min 24 24 24 24 General information Min Mod HS Modulat DHW only for HW modules Sequence 1 Sequence 1 Sequence 2 Sequence 2 Sequ Change type of sequence change Time Seq Mod time to sequence change Block Time delay time for next stage Set values for modulation control Set values for buffer storage Min Mod HS Dyn Upward dyn
78. lation after which a service message should be put out Delete programmed message Set the value Operating H to Off lt 50 in the General Service Customer Service level Delete the displayed maintenance message Press the F button use confirm with F button OK to set the repeat value to 00 Reset The three value groups can be reset to the factory setting using the Reset function Use the F button to select the Reset function use to set it to On and use the OK button to load the standard values Use the F button End to exit the level or Home button Expert area Expert area It is only possible to change the fitter set values after entering the code number A If these values are set incorrectly they may cause malfunctions or damage to the system Code No input 1 Set number F button gt next number 2 Set number F button gt next number 3 Set number F button gt next number 4 Set number Use the F button OK to save the code number System configuration Configuration Designation Value range Standard IV Change code 0000 9999 0000 BUS ID 1 00 01 15 01 BUS ID 2 00 01 15 02 BUS Termination Off On On eBUS Supply Off On On Time Master Off On Off Plant select 01 10 HS1 Type 00 06 03 HS1 BUS 00 05 00 HS2 Type 00 22 00 Storage HS2 00 03 00 Buffer 00 01 02 00 Cool Opera
79. lemented eBUS The unit is connected by means of the Terminals FA eBUS Heat request Controller gt Burner FA O5h07h in data byte 7 Process water desired value the burner must not interpret bit 7 additionally Data Status Burner FA gt Controller 05h03h Requirements for operation The burner control unit FA must transmit a valid eBUS message The eBUS supply must be activated if the burner does not also supply the BUS gt Expert System tap without information gt Test function with and without eBUS supply EEPROM check Every 10 minutes a check is conducted automatically in order to establish whether the settings of the controller lie within the specified limits If a value is found to be out of range it is substituted by the related default value The range transgression is indicated the error number 81 In this case the user should check the important settings of the controller The error message goes out after the unit is restarted RESET Circulation pump control Switched according to heating requirement Demand dependent circulation pump control automatic summertime switchover switches the circulation pumps off if there is no heating demand The mixing valves are closed at the same time Conditions for switch off Room temperature dependent control The room temperature exceeds the set desired temperature Weather dependent control Outside temperature exceeds room temperature set
80. mum temperature of the storage tank The storage tank cannot be fed during this period Recooling can take place only when the temperature of the storage tank exceeds the collector temperature at least by the value of return flow cooling difference 3K hysteresis Part 2 Overview of display values and settings Max T Storage DHW BU 3 If a top of tank sensor is installed it is used to monitor the maximum temperature at this sensor If this sensor is not installed the maximum storage tank temperature is monitored at bottom storage tank sensor In this case the layering of the tank must be taken into account The feeding pumps are disabled when the temperature of the storage heater exceed the safety limit temperature set here System protection The pumps are reactivated when the temperature falls below the temperature maximum storage temperature 5K Sol Kick Period sec Collector pump runtime following pump kick Sol Kick Pause min If the collector pump has not run for the duration set here the pump is activated for the kick duration period Sol Kick Gradient min The course of the collector temperature is controlled during this period following a pump kick If an increase of 0 5K is detected the pump is started for a further minute Part 3 General function description Part 3 General function description Heating circuit control Weather dependent control The boiler or flow temperature is determined via th
81. n be implemented using a Lago Basic unit or a heating circuit function e MF 4 Func 23 Solar e T MF4 Setpoint 60 Max DHW Storage for solar charge e MF4 Hyst 5K Switch on difference CAN BUS Choice of installation Lago Basic Terminal assignment Sensors Mains 1 GND Outdoor sensor 20 2 GND Collector sensor 21 3 GND Storage tank sensor 24 4 GND Flow sensor Heatcircuit 2 25 5 GND Buffer storage tank sensor top 26 6 GND Buffer storage tank sensor middle 27 7 GND Buffer storage tank sensor lower 28 8 GND Flow sensor Heatcircuit 1 29 30 9 GND Optional Hot water tank bottom 32 33 10 GND Sensor Solid fuel boiler HS2 PT1000 34 11 GND Optional Sensor Solar collector PT 1000 35 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 36 13 GND Optional room sensor for Heatcircuit 2 37 14 15 Optional eBUS DCF 38 16 17 Data line CAN BUS 18 19 Power supply CAN BUS N conductor mains Power supply unit Pump Heatcircuit 1 Pump Heatcircuit 2 Storage charging pump Mixing Valve Heatcircuit 2 open Mixing Valve Heatcircuit 2 closed HS1 pellet boiler HS2 solid fuel boiler Mixing Valve Heatcircuit 1 open Mixing Valve Heatcircuit 1 closed HS1 pump Optional Solar pump Power supply of relay via fuse e g bridge to 22 L1 Choice of installation Part 4 Installation and Start up Installation 06 Merlin 6644 gt Pellet and buffer controller with combination stor
82. n in Installation level any one of the functions described below may be selected for any unused relay The MF relay 1 4 A8 A12 is always assigned with a sensor 1 4 F11 F14 applies for functions starting from 20 only If a further sensor is required for a function this sensor must be connected as F17 connector III Pin 2 3 Must be observed Operation as 1144 Selectable MF functions gt 02 15 16 24 25 33 39 Operation as 1144 The circulation pump is not started automatically during the Hot water short time heating function If an MF solar function 07 08 09 23 27 28 29 is activated no further external solar controller may be connected The functions that may be selected for the MF relays yi 4 are described using MF relay 1 as an example MF 1 Func function selection relay MF 1 T MF1 Setpoint switching temperature relay MF1 MF 1 Hyst hysteresis relay MF 1 00 No MF function 01 Collector pump ON When heat is requested by a consumer OFF Without consumer heat request If at least one consumer in the system requests heat the pump is switched on The after run function runs after the burner has been switched on Commissioning 02 Circulation time Switching the relay according to the time program for the circulation pump 03 Booster pump ON When heat is requested by an internal consumer OFF When no heat is requested by an internal consumer Follow up pump action occur
83. n the display level T Pool T Pool Desired Expert area HW gt Hot water circuit This function can be used to operate additional hot water circuits The heating circuit flow sensor is located in the hot water storage tank The hot water temperature set value can be entered in the user area of the associated heating circuit level T DHW 1 2 3 The heating program for the heating circuit acts as an enable program for the storage tank The storage tank set value is set to 10 C during the reduction period The boiler controller hot water priority function can be used partial priority acts like priority Return flow gt Return flow temperature increase via mixer Heatcircuit 2 only The heating circuit flow sensor is used as a boiler return flow sensor The mixer controls to the heating circuit set value for 24 hours Min T Flow Installation tip Mixer Open gt boiler flow is fed into the return gt return flow temperature increase Mixer Closed gt heating circuit return is passed through When the mixer is open it must be ensured that there is circulation through the boiler boiler pump Pump Mode pump operating modes The circulation pumps are switched off if heating is not required The mixer motors are closed at the same time gt The heating circuit is switched off Switch on with 1K hysteresis Standard gt Standard circulation pump control e Room temperature dependent control OFF Room temp
84. ne storage tank is charged by the solar system the associated MF relay must be configured as a storage charging pump DHW BU 3 A collector pump is only configured if either two collectors East West alignment charge one more than one storage tank or if multiple storage tanks are charged by the solar system switch over of charging via switch over valves Charge DHW2 BU2 status of transfer pump Status indication of the transfer pump for cascade storage Part 2 Overview of display values and settings User Area All the settings that can be made by the operator of the system Installation Designation Value range Standard IV Language Acc to version English LCD Contrast 20 20 04 LCD 00 30 30 Brightness C F Celsius Fahrenheit Celsius IV Internal Values Space for entering the parameters stored in the system Hot Water Designation Value range Standard IV 1x hot water Off On Off T DHW 1 des 10 C 70 C 60 C T DHW 2 des 10 C 70 C 60 C T DHW 3 des 10 C 70 C 60 C BoB Value OK 70K OK Circl Pump DHW OFF ON OFF Antilegion OFF ON OFF User Area Installation English gt Language Select controller language LCD Contrast Adjust intensity of display LCD Brightness Adjust the brightness of the display illumination C F Changeover between display of values in Celsius or
85. ng from this day Please do not enter the day of travel as the end date but the last day on which there is to be no heating When you arrive home the house should be warm and there should be hot water Stop holiday function gt e g for early return by pressing the program switch Automatic summer winter time changeover The current weekday is calculated automatically It is shown the standard display It is possible to change from summer to winter time by entering the date a The default setting is valid for Central European time zones A modification is only required if the date for the time change is changed by political decree The earliest date on which the change will occur must be set The controller performs the time change on the Sunday following this date at 2 00 am or 3 00 am a If no time change is required please set month stop to the same value as month start and day stop to the same value as day start Service area Service area This area contains values for the customer service engineers in order to provide rapid access Use the F button to select a level e g Relay Test Relay Test 00 Normal mode gt Relay after control 01 A1 Pump Heatcircuit 1 02 A2 Pump Heatcircuit 2 03 A3 Hot water charging pump 04 A4 Mixer Open Heatcircuit 2 05 A5 Mixer Close Heatcircuit 2 06 A6 HS 1 On 07 A7 HS 2 On 2 stage HS 1 2 af
86. ng of the BUS ID sequence gt 01 xx Control Deviation collector control deviation Display of the header control variance set temperature actual temperature Desired Output required system output in Display of currently required total output 0 100 gt Calculated set value from control system System load in per cent The value is calculated floating and does not take any skips caused by the switching operation into account Expert area Switch Value 99 99 Internal control value gt only for switching cascade If this value reaches 0 the next heat generator is also connected only after the delay time has elapsed If the switching value reaches 0 the last heat generator is switched off If the desired temperature is exceeded by 1K the last heat generator is also switched off Block Time currently remaining value Display of current delay time Only if delay 0 is it possible to operate the next heat generator Max T Module maximum temperature of the boiler Protects individual heat generators in the cascade from overheating prevents triggering LIMITER limiter value This parameter is used to set a temperature at which the different heat generators switch themselves off or in the case of modulating heat generators modulate themselves down The heat generators are switched on again if they drop below this temperature by 5K The Max T HS temperature must be higher t
87. ng time interruption Reducing If the heating or reducing needs to take place for the rest of the day then you can turn the rotary knob to the left to heat or interrupt the heating for entire days In this manner a direct starting holiday program can be set very quickly e g Reduced 5 Days Part 1 Operation Selecting an operating mode The selected operating mode is shown in the display It takes effect when the setting is not changed for 5s The following operating modes are available for selection Cooling operation Heating operation disabled hot water preparation only Start of the refrigerating machines if required by the heating circuit or the temperature Installation T Return Cooling is exceeded Heating circuits controlled to the temperature Heating circuitx T Flow Cooling When MF function cooling switch over valve is active gt Hydraulic separation of the cooling circuit Actuation of the switch over valve cooling Standby OFF Heating OFF and hot water preparation OFF only frost protection mode OF Automatic mode 1 Heating according to timer program 1 HW according to HW program 2 Automatic mode 2 Heating according to timer program 2 HW according to HW program Ha Summer mode Heating OFF HW according to HW program Ne 1 Day mode 24 h heating with comfort temperature 1 HW according to HW program Night mode 24 h heating with reduced temperature HW accordin
88. nsor influence T Room adj Room sensor adaptation Heat up opti heatup optimisation Max Opt Time Maximum bring forward Opt reduced Reduction optimisation PC enable Timer Program Area Adjusting a time program Heating circuits and hot water Time Program for Solar Area Time Date Parameters on the Time Date level Time Time Master for all controllers Date Holiday function Automatic summer winter time changeover Service area Relay status and test Relay Test Code No Entry Sensor Test Software number XXX XX Cascade manual operation only with code number Burner time and Burner starts STL test Service By date Contents After operating hours Delete the displayed maintenance message Reset Expert area gt Code No input System configuration Change code BUS ID 1 2 Heating circuit number BUS Termination bus termination resistor eBUS Supply supply for eBUS Time Master Plant Select selecting basic controller functions HS1 Type first heat generator type HS1 BUS connection for HS HS2 Type second heat generator type gt A7 Storage HS2 heat accumulator for HS2 Buffer heater buffer storage type Cool Operation Space cooling via operating mode F15 function sensor function for F15 Set values for heat generators Max T HS1 Max temperature Boiler Min T HS1 2 min temperature Boiler Max Min T Header only for cascade Protection from condensate Warm Up Temp Min Delimi minimum delim
89. ntrol is captured by the MF sensor Commissioning Max T Solar The collector pumps are disabled when the associated collector temperature exceeds the safety threshold set here gt System protection The pumps are reactivated when the temperature falls below the temperature maximum collector temperature 10K Min T Solar ON The collector pump is enabled when the associated collector temperature exceeds the temperature Min T Solar ON Min T Solar OFF The collector pump is disabled when the associated collector temperature drops below the temperature Min T Solar OFF This function prevents pump operation without relevant heat production T Solar protect The collector protection temperature protects the collector against overheating If the collector temperature exceeds the set collector protection temperature and the storage tank temperature is less than 92 C then the storage tank is fed beyond its maximum temperature to 95 C to cool the collector The function is interrupted when the collector exceeds its maximum temperature The function is activated again when the collector temperature drops below the maximum temperature 3K Rflow cool diff Parameter 0 gt No storage tank recooling If the collector protection function has fed the storage tanks during the day to temperatures in excess of the set maximum storage tank temperatures then the storage tank can automatically be cooled at night between 1 00 and
90. o the MF relay storage charging pump 1 is used to determine the temperature of the medium used for charging the storage tank T SOLAR T SOLAR T MF4 Temperature of the solar collector T SOLAR T MF 1 3 Temperature of the heat exchanger T DHW B F12 Temperature of hot water storage tank in infeed area ON T SOLAR gt T DHW B MF HYST OFF T SOLAR lt T DHW B MF HYST OFF The pump is switched on when the temperature of the solar collector exceeds the temperature of the storage tank in the infeed area T DHW B by the Hysteresis MF HYST Switching off occurs when the temperature drops below the temperature T DHW B MF HYST OFF Safety system protection Please See Max T Solar and T Storage DHW 28 Storage charging pump 2 pump operates when the buffer storage tank can be charged by the solar system and the hot water tank can not be charged by the solar system The temperature of the medium used for charging the storage tank is always measured at the MF4 sensor T MF4 Exception In the case of function 23 at MF4 the sensor assigned to the MF relay storage charging pump 2 is used to determine the temperature of the medium used for charging the storage tank T SOLAR T SOLAR T MF4 Temperature of the solar collector T SOLAR T MF 1 3 Temperature of the heat exchanger T Buffer B F1 Temperature of buffer storage in the infeed area ON T SOLAR gt T Buffer B MF HYST OFF
91. of screed drying process The screed program can be used for function heating in accordance with DIN 4725 4 and for heating freshly laid screed ready for flooring Screed drying can only be carried out for mixer circuits After starting the program runs through the set flow temperatures The integrated mixer circuits control to the set flow temperature The boiler provides this temperature irrespective of the operating mode that has been selected This is marked in the standard display by the entry SCREED and a display of the current flow temperature The freely adjustable program runs for a maximum of 28 days The flow temperatures can be set to a value of between 10 C and 60 C for each day The entry stops the program also during operation for the following day Screed Programm settings F button gt Screed Program Select day gt Temperature is displayed F button OK gt Activate the day for the adjustment Set the flow temperature F button OK gt Save setting gt Select Next Day or exit the screed program using the F button End Expert area Hot Water Designation Value range Standard IV DHW Relief Off On On Parallel DHW Partial DHW Partial On Off DHW Parallel all T HS DHW OOK 50K 20K Hysteresis DHW 5K 30K 5K DHW Followup 00 min 30 00 min min Therm Input Off On Off Wall Hung Off On Off Load Through Off On Off Use
92. on Only active if an FBR analogue room device is connected room sensor operating mode selection and an outdoor sensor Function for automatic heal slope setting Starting Conditions e External temperature lt 8 C e Operating mode is automatic I or Il e Duration of lowering phase at least 6 hours At the beginning of the lowering period the current room temperature is measured During the next four hours this temperature is used as the set point for the room regulator The heating curve is calculated from the values determined during this time by the regulator for the flow pipe nominal temperature and the external temperature The parameter remains activated until the adjustment has been completed successfully without an interruption due for example to a Warm Up Temp or the hot water requirement of an external circuit During the adaptation the water heating and the heating optimisation of the regulator are blocked Room Influence Room sensor influence Only active if an FBR analogue room device is connected room sensor operating mode selection The HS temperature is increased by the set value when the temperature drops below the required room temperature by 1K gt High values lead to fast control and large HS temperature fluctuations gt pure weather dependent control 0 gt pure weather dependent control 20 gt pure room temperature control Special function with room influen
93. operation heating circuit enabling is enabled when the temperature T Room cooling is exceeded Cooling operation ends 2K below the set temperature Part 4 Installation and Start up Part 4 Installation and Start up Installation Assembly Dismantling Open close gt Installation Installing the controller Wall mounting Bore hole according to the bore plan and insert dowels Screw the screw into the bore hole upper middle up to a distance of 8 mm from the wall Hang the controller housing on this screw Opening the controller housing cover To do this loosen the screw on the left side of the controller housing And pull the cover on the left side forward Align the controller and screw in the fastening screws Top hat rail mounting The device can be mounted in the middle of a top hat rail In order to increase stability mounting on two top hat rails is recommended Hang the controller on the upper top hat rail with the receiver for the controller and snap it into place on the lower top hat rail When snapping it into place for support pull the locking device up using a screw driver or when mounting on one top hat rail pull down the corresponding locking device Removing the controller Before removing the controller it must be ensured that the controller is completely voltage free gt disconnect it from the network Only replacement of electronics 1 Remove the controller by pull
94. perature controlled circulation pump T CIRCL Return flow temperature of circulation line ON T CIRCL lt T MF1 SETPOINT OFF T CIRCL gt T MF1 SETPOINT MF 1 HYST The circulation pump is switched on when the return flow temperature drops below the temperature setting limit T MF1 SETPOINT The pump is switched off again when the return flow temperature exceeds the set limit temperature by the Hysteresis MF 1 HYST The set circulation program and the Circulation with hot water setting have an overriding function gt Switching on only takes place during enable periods 57 Commissioning 21 Pulsed circulation pump ON With short circuit at assigned sensor input OFF After 5 minutes If a short cut occurs at the multifunction sensor input the circulation pump is switched on for 5 minutes Switching on takes place on the edge once only The set circulation program and the Circulation with hot water setting have an overriding function gt Switching on only takes place during enable periods 22 Solid fuel boiler integration e g in connection with 2 stage HS T MF1 or 1 4 Temperature of the solid fuel boiler T BUFFER B Temperature of buffer storage in the infeed area F1 ON T MF1 gt T BUFFER B F1 MF 1 HYST 5K OFF T MF1 lt T BUFFER B F1 MF 1 HYST Warm Up Temp ON T MF1 gt T MF1 SETPOINT OFF T MF1 lt T MF1 SETPOINT 5K The pump is switched on when the temperature of t
95. plays no change to preset gt values retain their previously defined status values on delivery Merlin 0634 2 stage burner hot water preparation two mixed heating circuits 01 4034 gt cascade controller for modulating boiler 02 4834 gt cascade controller for switching boiler 03 3611 gt 0 10V controller 04 0634 gt Standard controller with 2 stage HS 05 2HS controller gt 2 HS cascade switched via relay 06 6644 gt buffer and pellet controller with solar function 07 1144 gt Mixer valve extension 09 0321 gt Cooling function in heating circuit return 10 0321 gt Central cooling function and solar integration HS1 Type first heat generator type 00 No heat generator 01 Single stage HS switching 02 Single stage modulating 03 2 stage HS switching second stage via A7 04 Two individual HS switching second HS via A7 05 Multi stage switching cascade via BUS 06 Multi stage modulating cascade via BUS HS1 BUS connection for HS 00 Relay gt Standard switching HS 01 CAN BUS gt Standard cascade switching 02 eBUS gt HS without temperature controller gt Preset modulation depth gt Standard cascade modulating 03 eBUS gt HS with temperature controller gt Preset desired temperature not suitable for cascade 04 0 10V Presetting of the desired temperature T HS DES only for HS1 Type 01 02 or 03 Burner relays a
96. point switching temperature relay MF1 MF1 Hyst Switch on hysteresis Relay MF1 MF1 Hyst Off Switch off hysteresis Relay MF 1 00 No MF function 01 Collector pump ON When heat is requested by a consumer OFF Without consumer heat request If at least one consumer in the system requests heat the pump is switched on The after run function runs after the burner has been switched on 02 Circulation time Switching the relay according to the time program for the circulation pump 03 Booster pump ON When heat is requested by an internal consumer OFF When no heat is requested by an internal consumer Follow up pump action occurs 05 Pump HS1 The relay may be used to control boiler pump for heat generator 1 Relay switches with burner relay 1 run down 5 min With buffers in the system Buffer gt 00 and sensor BU In this case the pump is switched on when the temperature of the heat generator T HS1 exceeds the temperature T Buffer T by 5K The pump is switched off when T HS1 is less than T Buffer T 06 Pump HS2 The relay may be used to control boiler pump for heat generator 2 Relay switches with burner relay 2 run down 5 min 07 Switch over valve Storage 2 buffer The valve changes solar production over from hot water tank to buffer storage if it is not possible for any more collectors to feed the hot water tank 08 Switch over valve Storage 3 swimming pool The F15 function must stand on 5
97. ps switch off and the mixers are closed The heating is enabled again when the outside temperature drops below the set heating limit by 1K 1 C T Limit Day gt applies during heating times T Limit Night gt applies during reduction times gt The heating limit is deactivated The circulation pump is switched in accordance with the standard function see chapter entitled Circulation pump control Heat Slope The gradient of the heat slope indicates by how many degrees the flow temperature changes if the outside temperature rises or drops by 1 K Setting tip At cold outside temperatures room temperature too low gt Increase heat slope and vice versa At high outside temperature e g 16 C room temperature too low gt correction via set room temperature Flow temperature C 3 2 5 100 80 60 40 0 6 20 201612 8 4 0 4 8 12 16 Outside temperature C Heat slope diagram setting aid Part 2 Overview of display values and settings Setting 0 gt Room control only The heat slope can best be set at outside temperatures below 5 C The change in heat slope setting must be made in small steps and at long intervals min 5 to 6 hours because the system must first adjust to the new values each time the heat slope is changed Guideline values e Underfloor heating S 0 4 to 0 6 e Radiator heating S 1 0 to 1 5 Adaption Heating curve adapti
98. r to adjust quickly and can lead to oscillation Max T Flow max flow temperature The measured temperature setting for the heating circuit flow is limited to the maximum flow temperature setting overheating protection A The heating circuit pump of the direct heating circuit is not switched off until the boiler temperature exceeds the set maximum flow temperature by 8K The heating circuit pump is already switched on again when the boiler temperature drops below the temperature maximum flow temperature 5K Min T Flow min flow temperature The measured temperature setting of the heating circuit flow is increased to the minimum flow temperature setting e g with air heating T Flow cooling only in installation cooling mode In the Cooling operating mode this temperature is adjusted via the mixer in the heating circuit flow OFF Heating circuit is not cooled Mixer Close Pump Off CLOSE Mixer as bypass valve Mixer Close Pump On T Frost protect frost protection temperature If the outside temperature drops below the programmed value the system switches to frost protection mode pumps are switched on Frost protection mode is deactivated Outdoor delay outside temperature delay The selected outside temperature delay must be matched to the type of construction of the building In the case of heavy structures thick walls a long delay must be selected since a change in outside temperature af
99. re controlled in parallel Sensor KF F8 must be connected 05 0 10V Preset modulation depth only for HS1 Type 02 Part 4 Installation and Start up HS2 Type second heat generator type gt A7 For HS1 with 2 stage burner not active 00 No secondary heat generator 01 Single stage HS switching 08 Cooling 1 20 Solid fuel integration additional non controllable HS for switching behaviour see parameter HS2 storage 21 Collector pump 22 Pump for HS1 e g additional HS for cascades Storage HS2 heat accumulator for HS2 Only where HS2 Type Solid fuel Warm up relief applies superordinated ON T HS2 gt Min T HS2 OFF T HS2 lt Min T HS2 5K T HS2 Solid fuel burner temperature 00 Heating vis a vis collector no storage tank gt F8 ON T HS2 gt F8 Hyst Burner 2 5K OFF T HS2 lt F8 Hyst Burner 2 01 Heating vis a vis buffer storage tank gt F1 F3 ON T HS2 gt F3 Hyst Burner 2 5K OFF T HS2 lt F1 Hyst Burner 2 02 Heating vis a vis HW tank gt F6 ON T HS2 gt F6 Hyst Burner 2 5K OFF T HS2 lt F6 Hyst Burner 2 03 Heating vis a vis STORAGE III Pool gt F15 ON T HS2 gt F15 Hyst Burner 2 5K OFF T HS2 lt F15 Hyst Burner 2 Switching pattern The pump is switched on if the temperature of the solid fuel boiler exceeds the temperature of the Reference sensor by the hysteresis Hyst Burner 2 5K Switching off occur
100. ress the F button Time Program Use to search for the desired time program gt e g Heatcircuit 2 Prog2 Use the F button here button 3 to select time program gt Heatcircuit 2 Prog2 Monday Use to search for weekday block gt e g Mo Fr Monday Friday Use the F button OK to select a block gt 06 00 08 00 16 00 22 00 Use the F button OK to select a time gt 06 00 08 00 16 00 22 00 Use the rotary knob to adjust the time gt 06 00 08 00 17 00 22 00 Use the F button OK to save a new program Use the F button End to exit a block When connecting a digital room controller with heating program input the corresponding heating program in this controller is automatically superseded Heatcircuit 2 Heating program 1 gt factory setting Mo to Fr 06 00 to 22 00 Sa and Su 07 00 to 23 00 Heating time 1 Heating time 2 Heating time 3 Mo Heating program 2 gt factory setting Mo to Fr 06 00 to 08 00 16 00 to 22 00 Sa and Su 07 00 to 23 00 Circulation Factory setting Mo to Fr 05 00 to 21 00 Sa and Su 06 00 to 22 00 Part 2 Overview of display values and settings Time Program for Solar Kick function enabling Factory setting Mo to Su 00 00 to 24 00 Heating time 1 Mo Su Area Time
101. rops below the temperature T B MF HYST OFF 58 Part 4 Installation and Start up A check is conducted before switch off as to whether a secondary storage tank see switch over valves can be fed Safety system protection OFF T T gt T MF SETPOINT ON T T lt T MF SETPOINT 5K Switching off occurs when the temperature of the active storage tank at the upper area of the inlet exceeds the set limit temperature T MF SETPOINT The pump is enabled again when the storage tank temperature drops below the limit temperature by 5K 24 Return flow temperature increase HS1 T RETURN 1 Return flow temperature from the installation T MF1 or 1 4 ON T RETURN 1 lt T MF1 SETPOINT OFF T RETURN 1 gt T MF1 SETPOINT MF 1 HYST The return flow temperature increase pump is switched on if the return flow temperature drops below the temperature setting limit T MF1 SETPOINT It is switched off again when the return flow temperature exceeds the temperature setting limit by the Hysteresis MF 1 HYST 25 Return flow temperature increase HS2 T RETURN 2 Return temperature of system ON T RETURN 2 lt T MF1 SETPOINT OFF T RETURN 2 gt T MF1 SETPOINT MF 1 HYST The return flow temperature increase pump is switched on if the return flow temperature drops below the temperature setting limit T MF1 SETPOINT It is switched off again when the return flow temperature exceeds the temperature setting limit by the Hyst
102. s 05 Pump HS1 The relay may be used to control boiler pump for heat generator 1 Relay switches with burner relay 1 run down 5 min 06 Pump HS2 The relay may be used to control boiler pump for heat generator 2 Relay switches with burner relay 2 run down 5 min 07 Switch over valve Storage 2 buffer The valve changes solar production over from hot water tank to buffer storage if it is not possible for any more collectors to feed the hot water tank 08 Switch over valve Storage 3 swimming pool The F15 function must stand on 5 The valve changes solar production over from buffer storage to storage tank 3 F15 if it is not possible for any more collectors to feed the buffer storage 09 Switch over valve Storage 3 swimming pool The F15 function must stand on 5 only for systems without solar buffer charging The valve switches the solar production from the hot water tank to Storage 3 F15 as soon as no collector is able to charge into the hot water tank 12 Remote controlled output Heatcircuit 1 The relay can be switched from the control unit of the heating circuit via the BUS for function refer to control unit manual 13 Remote controlled output Heatcircuit 2 The relay can be switched from the control unit of the heating circuit via the BUS for function refer to control unit manual 14 Not used 15 Not used 16 Not used 17 Not used 18 Not used 19 Not used 20 Tem
103. s below the temperature T DHW B MF HYST OFF Safety system protection OFF T DHW gt T MF SETPOINT ON T DHW lt T MF SETPOINT 5K Switching off occurs when the storage tank temperature exceeds the set limit temperature T MF SETPOINT The pump is enabled again when the storage tank temperature drops below the limit temperature by 5K 28 Storage charging pump 2 pump operates when the buffer storage tank can be charged by the solar system and the hot water tank can not be charged by the solar system The F15 function must stand on 5 The temperature of the medium used for charging the storage tank is always measured at the MF4 sensor T MF4 Exception In the case of function 23 at MF4 the sensor assigned to the MF relay storage charging pump 2 is used to determine the temperature of the medium used for charging the storage tank T SOLAR T SOLAR T MF4 Temperature of the solar collector T SOLAR T MF 1 3 Temperature of the heat exchanger T Buffer B F1 Temperature of buffer storage in the infeed area ON T SOLAR gt T Buffer B MF HYST OFF T SOLAR lt T Buffer B MF HYST OFF The pump is switched on when the temperature of the solar collector exceeds the temperature of the storage tank in the infeed area T Buffer B by the Hysteresis MF HYST Switching off occurs when the temperature drops below the temperature T Buffer B MF HYST OFF Safety system protection OFF T Bu
104. s are disabled when the associated collector temperature exceeds the safety threshold set here gt System protection The pumps are reactivated when the temperature falls below the temperature maximum collector temperature 10K Min T Solar ON The collector pump is enabled when the associated collector temperature exceeds the temperature Min T Solar ON Min T Solar OFF The collector pump is disabled when the associated collector temperature drops below the temperature Min T Solar OFF This function prevents pump operation without relevant heat production T Solar protect The collector protection temperature protects the collector against overheating If the collector temperature exceeds the set collector protection temperature and the storage tank temperature is less than 92 C then the storage tank is fed beyond its maximum temperature to 95 C to cool the collector The function is interrupted when the collector exceeds its maximum temperature The function is activated again when the collector temperature drops below the maximum temperature 3K Rflow cool diff Parameter 0 gt No storage tank recooling If the collector protection function has fed the storage tanks during the day to temperatures in excess of the set maximum storage tank temperatures then the storage tank can automatically be cooled at night between 1 00 and 6 00 hours by activating this function by switching on the feeding pumps to the set maxi
105. s the heating system from freezing by automatically switching heating operation on Outdoor sensor frost protection If the measured outside temperature drops below the set frost protection temperature the room temperature setting is set to 5 C for the relevant heating circuit The heating circuit is enabled e the pumps are switched on e the heat request is sent to the boiler gt outdoor sensor frost protection deactivated The function stops when the outside temperature increases to 1K above the frost protection temperature setting Boiler frost protection The boiler frost protection is activated when the boiler temperature drops below 5 C The boiler is switched on until the boiler temperature exceeds the Min T HS1 Expert area Flow or storage tank sensor frost protection The sensor frost protection is activated when the flow or storage tank temperature drops below 7 C Only the relevant pump is switched on The sensor frost protection is deactivated when the flow or storage tank temperature increases to above 9 C Frost protection via room sensor If the room temperature drops below 5 C the frost protection function is activated The room temperature setting for the relevant heating circuit is set to 5 C The heating circuit is enabled e the pumps are switched on e the heat request is sent to the boiler eBUS burner controls The controller supports the operation of burner controls via the imp
106. s when the temperature drops 5K below the switch on temperature Warm up Temp Switching off occurs when the temperature of the solid fuel boiler drops below the set limit temperature Min T HS2 by 5K The pump is enabled again when the temperature of the solid fuel boiler exceeds the set limit temperature Min T HS2 Buffer heater buffer storage type After activation 01 or 02 it is not possible to connect a FBR for heatcircuit 1 00 no buffer storage for heating operation 01 Buffer storage for heating operation F2 F3 HS1 is activated with reference to sensor buffer top F3 DHW Relief operates on sensor upper buffer HW charge pump ON Upper buffer gt HWactual 5K Hysteresis HW charge pump OFF Upper buffer lt HWactual Commissioning 02 Combination storage tank for heating and HW operation HS1 is activated with reference to sensor buffer middle F2 DHW Relief operates on boiler sensor KF HW charge pump ON KF gt HWactual 5K Hysteresis HW charge pump OFF KF lt HWactual 03 passive buffer storage for heating operation F1 F3 The buffer will not load by the conventional Heat generator producers The use occurs e g through solar buffer loading Buffer charging pump return flow temperature increase or transfer pump for buffer storage sensor usable In this attitude no change of the regulation of the heating takes place in relation to the without buffers
107. se 2nd burner stage E Hysteresis dynamic switching hysteresis Switch off 2nd Burner stage when the temperature setting F Hyst Burner 2 Hysteresis for shutdown is exceeded by the hysteresis a Module 1 on Switch 2nd Burner stage when temperature drops below b Start of blocking time 2 Burner stage set temperature of the heat generator a ves g T odU a enee Switch off the 1st Burner stage when 2nd stage enabled e Module 1 off cancel module 2 enable after temperature setting exceeded by the value Hysteresis Hyst Burner 2 Switching behaviour of the HS with gradient method Parameter Gradient On gt Premature deactivation or deactivation in due time of a heat generator burnt out in the case of pellet Heat generator temperature C A Min T HS Minimum heat generator temperature gt Switch off point to minimum temperature or calculated desired temperature here according to heat slope 1 3 B Max T HS Max reduce Earliest switch off point using gradient procedure takes effect when heat consumption is low rapid heat generator temperature increase C Max T HS Latest switch off point using gradient procedure takes effect when heat consumption is high slow HS temperature increase D T HS Cool When the HS reaches this temperature the emergency cooling function via the consumer circuits is activated 20 16 12 8 4 0 4 8 12 16 Outsi
108. sensor Heatcircuit 1 9 GND Optional hot water tank bottom 10 GND_ 11 GND Optional multifunction relay sensor 4 PT1000 sensor solar collector 12 GND_ 13 GND 14415 Optional eBUS DCF 16 17 Data line CAN BUS 18 19 Power supply CAN BUS Part 4 Installation and Start up CAN BUS wmi N conductor mains Power supply unit Pump Heatcircuit 1 Storage charging pump HS1 Burner 1 Refrigerating machine Mixing Valve Heatcircuit 1 open Mixing Valve Heatcircuit 1 closed optional Solar pump Power supply of relay via fuse e g bridge to 22 L1 Part 4 Installation and Start up Choice of installation Installation 10 Central cooling function and solar integration Terminal assignment Sensors 1 GND 2 GND 3 GND 4 GND 5 GND 6 GND 7 GND 8 GND 9 GND 10 GND 11 GND Outdoor sensor HS1 sensor Storage tank sensor Flow sensor Heatcircuit 2 Buffer storage tank sensor top Buffer storage tank sensor middle Buffer storage tank sensor lower Hot water tank bottom Sensor solar collector PT1000 12 GND 13 Optional FBR2 FBR1 for Heatcircuit 2 13 GND 14 15 16 17 18 19 Optional room sensor for Heatcircuit 2 Optional eBUS DCF Data line CAN BUS Power supply CAN BUS CAN BUS N conductor mains Power supply unit Pump Heatcircuit 1 Pump Heatcircuit 2 Storage charging pump Mixing Valve Heatcircuit 2 open Mixing Valve Heatcircuit 2 closed HS1 Refrigera
109. t Type of pump switching in the Expert level heating circuit Pumps do not switch on Check operating mode gt Standard test Check time and heating program gt Heating time Check pump switching mode Default gt Outside temperature gt Room set temperature Heating limits gt Outside temperature gt Valid heating limit Room control gt Room temperature gt Temperature setting 1K Burner does not switch of at correct time Check minimum boiler temperature and type of minimum delimiter gt Protect from corrosion Burner will not switch on Check HS set temperature gt The set temperature must be greater than the HS temperature Check operating mode gt Standard test 3 With solar Check burner blocking BOB Dimensions Dimensions Technical data Switching capacity of the Triac A12 Permitted ambient temperature during operation Permitted room temperature during storage Sensor resistances Tolerance in ohms Temperature tolerance Tolerance in ohms Temperature tolerance Tolerance in ohms 230 VAC 10 Max 8 VA 250 V AC 2 2 A 250V AC 1 1 A 0 to 50 C 20 to 60 C NTC 5 kQ AF KF SPF VF 1 at 25 C 0 2K at 25 C PTC 10109 AFS KFS SPFS VFAS 1 at 25 C 1 3K at 25 C PT1000 sensor with 1 kQ 0 2 at 0 C Technical data 4 x 35 mm 6 mm Malfunctions due to improper opera
110. tage output Curve 11 xx only when V Curve 11 Using parameters U1 U2 T1 T2 and UA a special voltage curve can be defined U Voltage T Temperature UA HS OFF U1 T1 gt Point 1 on the voltage curve U2 T2 gt Point 2 on the voltage curve The line between these limit points defines the voltage curve UA gt Starting with this voltage HS OFF UA must lie outside of the valid voltage values Part 2 Overview of display values and settings Screed program Screed Designation Value range Standard Screed Off On Off Screed Program See explanation Use the F button End to exit the level Preset values Day T Flow Own settings 1 25 2 25 3 25 4 55 5 55 6 55 7 55 8 25 9 40 10 55 11 155 12 55 13 155 14 155 15 55 16 55 17 55 18 55 19 55 20 40 21 25 23 24 25 26 27 28 Expert area Start day is not included The screed program starts with the Day 1 temperature setting and switches to Day 1 at 00 00 hrs and then to the next day at 00 00 hrs and so on The current day is marked with an x in the Screed Program After the function has been cancelled terminated the controller continues heating using the set operating mode If no heating is required set the operating mode to O Standby OFF Screed activation
111. ter 10s ON 08 A8 Mixer Open Heatcircuit 1 Multifunction 1 09 A9 Mixer Close Heatcircuit 1 Multifunction 2 10 A10 Multifunction 3 11 A12 Collector pump Multifunction 4 Sensor Test Sensor 01 Buffer storage temperature Lower Sensor 02 Buffer storage temperature middle or room temperature heatcircuit 1 Sensor 03 Upper buffer storage temperature Sensor 05 Flow temperature heatcircuit 2 Sensor 06 Upper hot water temperature Sensor 08 Heat generator header temperature Sensor 09 Outside temperature Sensor 11 Flow temperature heatcircuit 1 temperature multifunction 1 Sensor 12 Hot water temperature lower or temperature multifunction 2 Sensor 13 Solid fuel HS temperature or collector 2 or temperature multifunction 3 Sensor 14 Collector 1 temperature or temperature 4 Sensor 15 Room temperature heatcircuit 2 or Light measured value of the light sensor 0 10V or voltage value 0 10V input Sensor 17 Return flow temperature of whole heating system for cooling operation Part 2 Overview of display values and settings Relay status and test Relay Test Use the shaft encoder to select the relay 01 11 gt The selected relay is switched on All other relays are switched off Exception Burner 2 the burner stage 1 remains switched on here since otherwise the second burner stage cannot be activated A code number must be
112. tic 1 2 Summer Heating Reducing T Room des 1 5 C 40 C 20 C T Room des 2 5 C 40 C 20 C T Room des 3 5 C 40 C 20 C T Reduced 5 C 40 C 10 C T Absence 5 C 40 C 15 C T Room cooling 20 40 C 25 C Min TO cooling 0 C 40 C 1 27 C T Limit Day 5 C 40 C 19 C T Limit Night 5 C 40 C 10 C Heat Slope 0 00 3 00 1 20 Adaption OFF ON OFF Room Influence 00 20 10 T Room adj 5 0 K 5 0 K 0 0K Heat up opti Off T Outside T Off Room Max Opt Time 0 00 3 00 h 2 00 h Opt reduced 0 00 3 00 h 0 00 h PC enable 0000 9999 0000 or depending on the function selected for the heating circuit also T Pool T DHW T Flow Day or T Flow Night see page 29 Operation also see page 7 gt The controller programming switch applies in this case When setting an alternative operating mode this only applies to the assigned heating circuit When the Standby and Summer operating mode of the controller programming switch are set this has a reducing effect on all heating circuits and consumer circuits in the entire system T Room des 1 3 Required room temperature setting T Room des 1 gt used in first enable time T Room des 2 gt used in second enable time T Room des 3 gt used in third enable time of active heating program for this heating circuit T Reduced Required room temperature s
113. ting machine Switching valve storage tanks 1 gt 2 Bypass valve cooling mode Switch over valve storage tank 2 Solar pump 1 Power supply of relay via fuse e g bridge to 22 L1 Solar installations examples Solar installations examples The MF relays 1 4 can be used to compile a wide variety of solar installations from individual functions If the MF relays 1 2 are to be used for solar functions heatcircuit 1 can only be used as a direct heating circuit Part 4 Installation and Start up Code gt Designation sensor top middle bottom DHW gt Hot water tank F6 F12 BU gt Buffer storage for heating operation F3 F2 F1 Sp 3 gt e g Pool F15 MF relay gt Multifunction relay F11 F12 F13 F14 A If only one collector field is controlled the charging pump must be programmed to MF4 In the case of an East West installation the second collector pump must be programmed to MF3 PT1000 sensor 1 If only one storage tank is charged by the solar system the MF4 relay must be programmed as a storage charging pump 27 28 29 depending on the type of storage sensor In this case programming the collector pump is not conducive 2 If two or all three storage tanks are charged by the solar system the MF relays can be programmed as cylinder charging pump 27 28 29 provided a corresponding hydraulic system is also installed all storage tanks are connected to the collector in parallel by me
114. tion Off On Off F15 Function 00 05 00 Sensors 1k 5k Sensors 5k Sens Use the F button End to exit the level Part 2 Overview of display values and settings Change code Input of a new code number It is essential to remember the new code number after adjustment BUS ID 1 2 Heating circuit number The heating circuits are sequentially numbered starting with 01 heating circuit numbers must not be assigned twice For replacement controllers however please enter exactly the same heating circuit numbers as the replaced controller BUS Termination bus termination resistor The bus terminating resistor must be available once in the bus system HG controller or cascade controller When installing with a CoCo set 1 to Off Off gt The resistor is not set On gt The resistor is set eBUS Supply supply for eBUS Switching the eBUS supply on off in relation to connected devices power supply balance Time Master Only without or Time Master in system Off no time master each heating circuit has its own time On controller is time master all controllers and remote controls take over the time settings of this controller No more than 1 Time Master is permitted in the system Plant Select selecting basic controller functions This set value can be used to preset the other values of the start up level see also installation description on page 40 When the installation set value is s
115. tion or settings are not covered by the warranty 6 6702 132 03 Printed in Germany subject to modification EN 0808
116. to operating hours of the first heat generator of the active sequence Time Seq Mod time to sequence change For operation with at least 2 heat generators there is the option to swap the boiler sequence after the operating hours specified here of the first heat generator of the active sequence 00 no HS Sequence Block Time delay time for next stage Min delay time after switching on or with switching HS also when switching a layer off until switching the next layer on 00 10 sec For correct settings also ensure the internal Block Time for the closed burner control These parameters can be additionally set in the menu Heat generator adjustable Part 2 Overview of display values and settings Set values for modulation control only for one stage modulating boilers Modulation Designation Value range Standard IV Min Mod HS 00 100 00 Dyn Upward 20 500 K 100 K Dyn Downward 20 500 K 100 K Use the F button End to exit the level Set values for buffer storage Buffer Designation Value range Standard IV T Buffer Charge 40 C 90 C OFF Requiremen t Requirement Min T Buffer 10 C 90 C 10 C Use the F button End to exit the level Expert area Min Mod HS If the controller calculates an overall modulation rate greater than zero and less than min Mod HS the overall modulation rate is set to the
117. tting of the desired temperature T HS DES only for HS1 Type 01 02 or 03 Burner relays are controlled in parallel Sensor KF F8 must be connected 05 0 10V Preset modulation depth only for HS1 Type 02 HS2 Type second heat generator type gt A7 For HS1 with 2 stage burner not active 00 No secondary heat generator 01 Single stage HS switching 08 Cooling 1 20 Solid fuel integration additional non controllable HS for switching behaviour see parameter HS2 storage 21 Collector pump 22 Pump for HS1 e g additional HS for cascades Storage HS2 heat accumulator for HS2 Only where HS2 Type Solid fuel Warm up relief applies superordinated ON T HS2 gt Min T HS2 OFF T HS2 lt Min T HS2 5K T HS2 Solid fuel burner temperature 00 Heating vis a vis collector no storage tank gt F8 ON T HS2 gt F8 Hyst Burner 2 5K OFF T HS2 lt F8 Hyst Burner 2 01 Heating vis a vis buffer storage tank gt F1 F3 ON T HS2 gt F3 Hyst Burner 2 5K OFF T HS2 lt F1 Hyst Burner 2 02 Heating vis a vis HW tank gt F6 ON T HS2 gt F6 Hyst Burner 2 5K OFF T HS2 lt F6 Hyst Burner 2 03 Heating vis a vis STORAGE III Pool gt F15 ON T HS2 gt F15 Hyst Burner 2 5K OFF T HS2 lt F15 Hyst Burner 2 Switching pattern The pump is switched on if the temperature of the solid fuel boiler exceeds the temperature of the Reference sensor
118. um delimiter with heat requirement The HS holds at least the set minimum temperature Min T HS1 at heating requirements pump release 02 Permanent minimum delimiter 24 The HS holds 24h at least the set minimum temperature Min T HS1 at heating requirements Pump release Hysteresis with hysteresis time Function for optimising the boiler operation with differing heat generator loads The effective switching hysteresis is reduced linearly after the burner is switched on from the set Hysteresis to the minimum hysteresis 5K during the hysteresis time Low heat consumption In this case the higher Hysteresis setting takes effect Short run times and frequent burner operation are prevented High heat consumption During longer periods of burner operation high heating load the hysteresis is automatically reduced to 5K This prevents the heat generator from heating to unnecessarily high temperatures Part 2 Overview of display values and settings Two stage heat generators Only in the case of 2 stage or two heat generators via burner relays 1 and 2 Time Seq Mod time to sequence change For operation with at least 2 heat generators there is the option to swap the boiler sequence after the operating hours specified here of the first heat generator of the active sequence 00 no HS Sequence Block Time delay time for next stage Min delay time after switching on or with switching HS also when switching a lay
119. value min Mod HS The Block Time is simultaneously set to 10s Dyn Upward dyn heat generator connection K Small value fast high modulate Large value slow high modulate A Values set too low can lead to overheating of the HS and triggering the STB Calculation If the cumulative system deviation in Kelvin reaches the set value A the effect this is the modulation of 100 Dyn Downward dynamic heat generator deactivation K Small value fast deactivation Large value slow deactivation A Values set to high can lead to overheating of the HS and triggering the STB Calculation Reaches the summed rule difference in Kelvin the adjusted value thus this causes the disconnection of all HS T Buffer Charge Temperature to which the buffer storage must be charged at the sensor sensor middle Sensor buffer top Terminal 6 operates on HS Off Parameter value OFF In this setting the buffer will not load by the conventional heat generator The feeler Buffer M is not used The use occurs e g through MF functions like return flow temperature increase or transfer pump for buffer storage Parameter value Requirement The requirement e g heat slope derived from max value formation 5K hysteresis operates on sensor buffer middle Parameter value gt 40 C lt 90 C The set value 5K hysteresis operates on sensor buffer top Min T Buffer When this function is active the buffer
120. value or flow temperature set value drops below 20 C 35 Expert area If the room temperature factor is 0 the pump continues to run during the reduced operation period after a one off heating demand Switched according to heating limits If the outside temperature that is measured and calculated by the controller exceeds the heating limit specified here heating is disabled the pumps switch off and the mixer valves are closed The heating is enabled again when the outside temperature drops below the set heating limit by 1K 1 C T Limit Day gt applies during heating times T Limit Night gt applies during reduction times Delayed pump switch off In the case of switch off of the circulation pumps the circulation pumps are not switched off until 5 minutes later if one of the burners was on during the last 5 minutes before the switch off instant Pump blocking protection The controller effectively prevents the pumps blocking following longer periods out of operation The integrated protection function switches on all pumps which have not been in operation during the past 24 hours for 5 seconds at 12 00 hours every day Mixer motor blocking protection If the mixer has not moved for 24 hours it is fully opened at approximately 03 00 hrs once only The heating circuit pump is switched off during this time The maximum flow temperature is monitored Cancelled at maximum flow temperature 5K Part 3 General
121. wing pages Part 2 Overview of display values and settings Part 2 Overview of display values settings Display Range Display only gt no adjustment possible Display only appears if the sensor is connected and the value is present in the system otherwise or no display Exit the level with End Installation HG gt heat generator use to select parameters T Outside Outside temperature Ext setpoint External set value specification 0 10V T Header Collector temperature and set value with F button only for cascades T HS Temperature boiler 1 through 8 HS State Status On Off boiler 1 through 8 T Solid Fuel At boiler 2 Boiler for solid fuel A7 T Return 1 Return flow temperature of HS 1 T Return 2 Return flow temperature of HS 2 T Return total Installation return flow temperature T Buffer T Buffer storage tank temperature removal T Buffer M Buffer storage tank temperature charging zone HS T Buffer B Buffer storage tank solar zone T Storage 3 Temperature of storage tank 3 e g solar pool heating Mod depth Modulation degree of HS Burner 1 Status burner relay 1 On Off Burner 2 Status burner relay 2 On Off Error Error number 00 error free Hot Water T DHW Current hot water temperature and current warm water set temperature as per heating program and operating mode T DHW B Temperature of HW tank in the lower
122. y System value display e g sensor values and setpoints No adjustments can be made Operating errors are therefore excluded in this area User Summary of settings that can be made by the operator Time program Summary of time programs for heating circuits the hot water circuit and extra functions where applicable Time Date Time date holiday program and data for the summer winter changeover Service Summary of the values for the service technician Expert Summary of values for which expert knowledge is required to make settings installation technician A Values in the expert level are protected by a code no damage malfunction possible Expert HS only for HS via BUS Summary display of the values sent to the BUS by the HS Levels Assignment of the set values The settings in the different areas are sorted into operating levels Installation All display values and settings that relate to the heat generator or the entire system and cannot be assigned to a consumer circuit Hot Water All display values and settings that affect central hot water preparation and circulation Heatcircuit 1 2 All indicator and set values that relate to the corresponding consumer circuit also for example as decentral hot water circuit Solar MF All indicator and set values that relate to solar energy recovery and settings for the multifunction relay An overview of all settings can be found on the follo

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