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Operating instructions

1. Manual burner switch O The manual switch should always be set to Automatic AUT The positions 0 Manual and max I Il are special settings which should only be operated by specialists when faults exists The burner may be directly controlled with the manual switch However the control unit continues to operate Never use the manual switches to switch OFF the system when you have to temporarily leave the system Buderus Fig 3 ZM432 Display General fault e g site error sensor error external faults internal wiring fault module error manual mode These fault messages appear as plain text on the MEC 2 programmer Burner function indicators Display gt Display sm Burner fault Burner operating Display A Increasing the burner operating output Display y Reducing the burner operating output Boiler circuit function indicators Display Display Display A Display y Boiler circuit in summer mode Boiler pump active 3 way mixing valve opens towards the boiler 3 way mixing valve opens towards the heating circuit We reserve the right to make any changes due to technical modifications 10 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Only the first stage will be enabled for single and two stage burners For modulating burners the burner output can be infinitely increased using and infinitely reduced using W AUT
2. Re loading DHW The DHW temperature has fallen during night set back DHW below the set temperature and can be corrected if measured required if the indicator in the button illuminates Press the button The green LED in the button flashes until the DHW cylinder has been reloaded The DHW circulation pump runs permanently during reloading Starting the DHW circulation pump Pressing the button only starts the DHW circulation pump if the DHW is still at its set temperature Reloading DHW circulat Pump is on 3 minutes If you started this function in error press the button again DHW Reloading is then stopped measured Reloading stopped We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 23 Setting constant operation Open the cover then press and hold down the button Turn the dial until DHW is shown Release the button Heat circ Press the button DHW is now produced at all times The standard DHW display re appears after 3 seconds 55 C Perm operation Switching OFF DHW heating Open the cover then press and hold down the button Turn the dial until DHW is shown Release the button Press the button OFF DHW heating is switched OFF The standard display re appears after 3 seconds DHW Setting up automatic mode Open the co
3. Check whether the boiler is under at least 1 bar pressure If this is the case Reset the high limit safety cut out by removing the domed nut and pressing the reset button located underneath the nut If unsuccessful Notify your heating engineer Remote control fault The control unit works with the last values set on the remote control Notify your heating engineer Boiler sensor The heating system may heat Consult your heating engineer DHW sensor is faulty fault with higher temperatures to Notify your heating engineer which temperature sensor is faulty Outside sensor safeguard the DHW flow fault Flow sensor fault DHW sensor For safety reasons no hot Notify your heating engineer fault water will be produced if the Heating circuit X in manual mode DHW in manual mode Boiler circuit in manual mode Burner in manual mode Depending on switch positions pumps actuators etc will be operated manually The control functions continue to operate in manual operating mode but will have no effect on the heating system The switch was set to manual for maintenance purposes or to remedy a fault Return the manual switches to AUT after the fault has been remedied Table 3 Fault table Buderus 62 We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 27 Emergency mode
4. Control device unit Never open the control unit Never attempt to dismantle individual components Heating with manual override For emergency operation manual switches are provided on the control unit and on the modules In position each respective pump will be activated The mixers stay at zero volts and should be manually adjusted Check the settings on individual modules for possible incorrect settings prior to making adjustments for manual operation If the control system indicates a fault you may temporarily run your heating system manually o e Bo o O Set the boiler water thermostat a to 60 C 90 C in case of failure Set the ON OFF switch to Set the burner emergency operation to w ag The 1st burner stage will always be directly controlled Set the 2nd burner stage via the manual switch of the module set the DHW heating to 60 C aur TO Safeguard the DHW provision in emergencies set the manual switches to y Boiler circuit to w Mixer circuit to w DHW to w Fig 15 Heating with manual override We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 63 Fault Settings for an emergency operation ON OFF switch Manual Manual Boiler water Manual switch on switch swi
5. The display briefly shows the heating circuit and then the last set program for this heating circuit The program description flashes Heating circ 2 Timer Program choice Family Buderus We reserve the right to make any changes due to technical modifications 32 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Release the button The display shows the 1st switching point of the Family program selected program Monday at 05 30 hrs Turn the dial to the switching point which you want to move Family program Tuesday at 05 30 hrs Press and hold down the button The time of the switching point flashes Turn the dial to Tuesday 06 30 e a Release the button Tuesday If you want to revert to the previous switching time press at 06 30 hrs and hold down the button again and turn the dial back to the original switching point Program Own 2 Return to the standard display Press the J button We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 33 Inserting switching points You may interrupt heating phases by inserting switching points Example The standard Family program for heating circuit 2 provides constant heating on Fridays from 05 30 until 23 00 h Insert two new switching points if for example you do not want to heat on fridays from 10 0
6. Display Display for set room temperature Enter DHW temperature reloading Set time Modify temperature values Summer and winter changeover Back to the standard display Program selection Select heating circuits domestic hot water circuit Fig 7 MEC 2 programmer We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 7 Getting started Initial start up Check that all manual switches on the programmer and the modules used are set to AUT Set the control unit ON OFF switch to 1 The MEC2 programmer will then start up Data is then matched between the control unit and the MEC2 A little later the display of the MEC2 programmer indicates the standard display preset at the factory Shutting down Set the ON OFF switch to 0 in an emergency switch OFF the emergency stop switch outside the boiler area Buderus Setting the room temperature for all heating circuits allocated to the MEC 2 USER NOTE Heating circuits with the MEC 2 pro Buderus grammer are selected as MEC heat circ Heating circuits without MEC 2 pro grammer are selected as Heating cir cuit and heating circuit number or as Heating circuit name and heating cir cuit number Setting the day room temperature Press and release the button whilst the cover is closed Turn the dial until the
7. Noon appears Buderus Standard Noon program Day mode Night mode 6 00 8 00 11 30 13 00 17 00 22 00 New program Own program 2 Day mode turn to 17 00 Night mode 6 00 8 00 11 30 22 00 Fig 11 Connecting heating phases Heat circ sel Heating circ 2 Timer Heating circ 2 Timer Program choice We reserve the right to make any changes due to technical modifications 40 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Release the button The display shows the 1st switching point of the selected program Connecting heating phases Turn the dial until the switching point of that heating phase is displayed which you want to join to another In this example 13 00 Press and hold down the button The time begins to flash Turn the dial to the next switching point In this example 17 00 As soon as the switching point 17 00 has been reached the display changes to Switch periods is combined On the bottom line blocks are display which disappear one after the other USER NOTE You can interrupt the deleting process be Buderus fore all of the blocks have disappeared by releasing the button or by turning the dial back Both switching points 13 00 and 17 00 will be joined and the new program with the continuous heating phase saved as Own program 2 as soon as all blocks have disappeared Return to the standard display Press
8. The burner operates in automatic mode 0 The burner is switched OFF Except when the burner emergency mode switch is set to Max I Il The burner continuously operates at maximum output Boiler circuit function ANI 0 Manual boiler circuit switch oO The manual switch should always be set to AUT The positions 0 and Manual are special settings which should only be operated by installers in case of errors Any installed boiler pump will be switched ON The boiler circuit valve can be manually operated AUT The boiler circuit operates in automatic mode 0 Any installed boiler pump will be switched OFF The boiler circuit valve can be manually operated Current functions are displayed by LED s We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 11 Heating circuitand DHW module FM441 The FM441 function module controls one heating circuit with valve plus one DHW circuit with circulation pump One module per control unit may be installed in any slot The manual switches on the module are only provided for service and maintenance functions AUT OI Ww Ifthe manual switch YY is not set to automatic a corresponding message appears on the MEC 2 and the fault indicator illuminates Never use the manual switches to switch OFF the system when you have to temporarily leave the installation The co
9. The factory setting is 0 C The setting range is 5 C to 5 C for example Displayed room temperature 22 C Actual room temperature 24 C Matching temperature values Open the cover Simultaneously press and then release the and Calibration MEC Room temperature buttons The display shows Calibration MEC Correction 0 0 C Press and hold down the 10 button The setting to be changed flashes Calibration MEC Turn the dial until for example 2 C is displayed Room temperature Release the 1 button Correction The display now shows the adjusted room temperature 2 0 C for instance 24 C Buderus We reserve the right to make any changes due to technical modifications 58 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 24 Operating tips for cascade systems For cascade systems or heating system with many heating circuits the control unit may comprise several control units The basic unit is always a Logamatic 4311 control unit and the additional units are Logamatic 4312 control units Both control unit types are generally operated in a similar way Because the MEC 2 programmer can only process data from one control unit these must be operated sequentially To change to another control unit to enable that unit to be operated remove the MEC 2 programmer from the former control unit and plug it into the next The following messages are the
10. Buderus Boiler temp Outdoor temp Burner 1st stage Hours run USER NOTE The consumption values are purely for comparison and may not be used for ac counting purposes The operating values of heating circuits will only be displayed if you have already selected the relevant heating circuits The consumption values will only be displayed if you have already selected this function Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 27 12 Selecting the standard program A standard program is a switching program with typical switching times set up in the factory You can select from eight standard programs see overview of standard programs page 31 The Family program is factory pre set The standard programs can be used separately for each heating circuit You can modify or supplement the switching points of a standard program to create your own individual program If you select New all previously entered switching points will be deleted and you can arrange your own individual program Your heating system will operate constantly in day mode if neither a switching point nor a program is entered You may create an individual program for every heating circuit Your individual program will be saved and displayed as Own with the Heat circ no Setting not possible USER NOTE single heat circ select This function is not available for heating Buderus circuit sel
11. Issue 02 2006 21 Entering date and time not currently available in the UK and should be switched off The date is set at the factory Date and time are synchronised daily via a radio signal where available This also automatically changes between summer and winter Well screened boiler rooms may impede the reception of the radio clock signal which makes it necessary for you to set the date and time manually The MEC 2 contains a radio receiver not currently available in the UK and should be switched off which constantly monitors and corrects the time switch inside the control unit This means that you need never set the time during commissioning after prolonged power failure after the heating system has been switched OFF for longer periods on its mains electrical isolator or for changing from summer to winter and vice versa Please note this facility is subject to the availability of the radio clock signal For the MEC 2 remote control the reception of the radio clock signal is subject to place and location Reception of the radio clock signal is indicated by the symbol on the display In case of reception problems please observe the following The radio reception is weaker in rooms surrounded by steel reinforced walls in cellars high rise buildings etc The distance from sources of interference such as computer monitors and TV sets should be at least 1 1 50m Atmospheric interference is not
12. changeover temperature below which you want to heat In the example 18 C Release the 7 button Buderus 52 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Setting not possible MEC heat circ select Heat circ sel MEC heat circ Summer winter MEC heat circ Summer winter Summer from We reserve the right to make any changes due to technical modifications Setting up constant summer mode Selecting a heating circuit Press and hold down the button Turn the dial until the required heating circuit is displayed Release the button Press and hold down the 7 button The heating circuit is briefly shown in the display Then the mask with the currently set changeover temperature will be displayed The adjustable temperature setting flashes Turn the dial to a changeover temperature below 10 C Release the 7 button The heating system will constantly operate in summer mode Setting up constant winter mode Selecting a heating circuit Press and hold down the button Turn the dial until the required heating circuit is displayed Release the button Press and hold down the 7 button The heating circuit is briefly shown in the display Then the mask with the currently set changeover temperature will be displayed The adjustable temperature setting flashes Turn the dial to a changeover temperature above 30 C Rel
13. e Issue 02 2006 13 Strategy module FM447 The strategy module is designed to control a cascade system and carries out special functions e g central fault display messages The strategy module is not equipped with controls Buderus Fig 6 FM447 Display General fault e g site error sensor error external faults internal wiring fault module error manual mode These fault messages appear as plain text on the MEC 2 programmer Indicators for burner functions Display A Switch on one further burner stage Display y Switch off one further burner stage Display I 1st stage or base load of the respective boiler burner Display Il 2nd stage or modulation load of the respective boiler burner Boiler display 1 burner 1 Boiler display 2 burner 2 Jee Boiler display 3 burner 3 We reserve the right to make any changes due to technical modifications 14 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 6 MEC 2 programmer Constant heating mode Automatic heating mode in accordance with a time switch Constantly reduced heating mode Enter weekdays Enter holidays Select standard display MEC 2 programmer qi Common flow 45 C Outdoor temp Radio clock signal This feature does not function in the UK and Eire and should be switchet off
14. fault s Leave the heating system switched ON all the time e Contact your heating installer if a fault occurs Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 5 2 For your safety 2 3 Cleaning the control unit The control unit should only be cleaned with a damp cloth 2 4 Disposal Dispose of the control unit packaging in an environmentally responsible manner The lithium battery in the CM431 module may only be replaced by your installer Buderus We reserve the right to make any changes due to technical modifications 6 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 3 Tips on energy efficient heating Buderus control units ensure optimum comfort and many technical options as well as energy savings and simple operation Observing the following tips you could save energy money and protect the environment Ask your installer to instruct you in the correct use of this equipment during commissioning If in doubt ask Read the operating instructions for your heating system thoroughly Have your system adjusted to the conditions of your property Have your heating system regularly serviced During the cold season air rooms but only for short periods this prevents rooms getting too cold e Check the settings of thermostatic radiator settings in each room Never set the temperature of living accommodation or domestic ho
15. is displayed Release the button Timer Program choice Family Buderus We reserve the right to make any changes due to technical modifications 36 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 The display shows the 1st switching point of the selected program i ite Family program Monday at 22 00 h Selecting and cancelling switching points Turn the dial to the switching point which you want to delete Simultaneously press and hold down the and buttons Family program Delete The bottom line shows 8 blocks which are deleted in Monday 22 00 second intervals from left to right When no blocks are left the switching point has been deleted ania maman The deleting process is terminated if you release the button before all blocks are gone We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 37 Deleting a heating phase Generally a heating phase comprises two switching points One switching point can only be moved to the next switching points A heating phase will be deleted as soon as its switching points are set to the same time Example You have selected the standard Noon program for your heating system and want to delete the heating phase 11 30 to 13 00 h on Mondays to create a heating break from 08 00 to 17 00 h Select a heating circui
16. the system Read these operating instructions carefully Only enter or change the operating settings specified WARNING We reserve the right to make any changes due to technical modifications in these instructions Other inputs affect the heating system control programs and can lead to system malfunctions Maintenance repairs and fault diagnosis should only be carried out by authorised and qualified personnel RISK TO LIFE from electric shock Never open the control unit in an emergency isolate the heating system from the mains supply using the emergency stop switch located outside the boiler room or by removing the main fuse Arrange for your installer to rectify immediately any faults in your heating system WARNING CAUTION RISK OF SCALDING For thermal disinfection purposes the entire DHW system is set in the factory to heat up to 70 C activated Tuesday night at 01 00 If required e g shift work your heating installer can alter the activation time If the DHW circuit of your heating system is not equipped with a thermostatic valve do not open any hot water tap without mixing in some cold water As there is a risk of scalding at temperatures above approximately 60 C ask your heating installer what temperature the hot water has been set to SYSTEM DAMAGE through frost The heating system can freeze up if it is out of use e g through a shutdown because of
17. would like to heat less whilst you are away Press and hold down the button and simultaneously open the cover of the MEC 2 remote control Pause function Turn the dial until the required number of hours is displayed Release the button The pause function starts immediately After three hours the heating system returns to the automatic heating mode Pause function Call up the pause function and turn the dial to O hours if you want to cancel the pause function We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 O hours 3 hours Buderus 47 18 Holiday program Using the holiday program you can heat at a lower room temperature if you are away for longer periods of time Select the required heating circuit before calling up the holiday program You may select either an individual heating circuit or all circuits allocated to the MEC 2 All Holiday prog heating circuits for which no holiday program was set not possible up continue to work normally F P X MEC heat circ USER NOTE select MEC heating circuits see Chapter 8 Buderus page 1 9 Calling up a holiday program Example If you are on holiday for the next five days and you want to heat less during that time e g heating circuit 2 with a reduced room temperature of 12 C As the holiday program activates immediately af
18. 0 to 13 00 hrs Select a heating circuit Open the cover Press and hold down the button Turn the dial until Heating circ 2 is displayed Release the button Program selection Press and hold down the button The display briefly shows the heating circuit and then the last set program for this heating circuit The program description flashes Release the button The display shows the 1st switching point of the selected program Buderus Day mode e g 21 C Night mode Bi 5 30 23 00 Day mode e g 21 C Night mode 5 30 10 00 13 00 23 00 Fig 9 Entering switching points Heat circ sel Heating circ 2 Timer Heating circ 2 Timer Program choice Family Family program Monday at 05 30 hrs We reserve the right to make any changes due to technical modifications 34 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Entering the first switching point Turn the dial anti clockwise until the blank mask New Switch Point is displayed Press and hold down the button Turn the dial to the required day You can select days individually or in blocks Monday Thursday Monday Friday Saturday Sunday Monday Sunday Release the button Press and hold down the button Turn the dial until the required time is displayed Release the button Press and hold down the 1 button Turn the dial anti clockwise
19. 6303 1852 02 2006 GB For the user Operating instructions Logamatic 4311 4312 control unit T gt ref o Q gt m Please read thoroughly before use This unit meets all requirements of relevant European standards directives and guidelines Its conformity has been verified All associated documents and the original Declaration of Conformity are available from Buderus About these instructions These operating instructions contain important information for the safe and correct operation of the Logamatic 4311 and 4312 control units Subject to technical modifications Constant development may lead to minor deviations in the illustrations procedures and specifications described shown Updating your documentation Please let us know if you have any suggestions which would improve our documentation or if you have noticed any errors Buderus We reserve the right to make any changes due to technical modifications 2 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 1 IPWGOQUCHON 64465 ham ocddedentad bay KAN weer de eA eee Thee ane 4 2 For your safety so a ook e de ES Heh ee bok KGG SRS Se eee ES 5 3 Tips on energy efficient heating 2 000022 eee eee 7 CONUGIS AA 8 5 Modules and their functions 0000 cee ee 9 6 MEC 2 programmer Za Ka KAG na ade e aden ber eens necue KNA WG NG 15 7 Getting started 2644555444 4455 85654608 Ch GES ewes NAA NAA
20. 8 l Initial start up 2 ee ee 16 Inserted modules 4 8 Interrupting a holiday program 50 M Maintenance message 60 Matching the room temperature sensor 58 Modules 0a a 9 N New DHW program 2 4 44 Night room temperature 17 22 O Operating conditions 18 Operating settings 27 65 Buderus P Party function 0 46 Pause function 47 Program selection 42 R Radio clock signal 55 ReloadingDHW 23 Room temperature 17 S Select a heating circuit 42 Selecting the standard program 28 Setting the changeover temperature 52 Settingthedate 56 Setting the room temperature 16 17 Setting up summer mode 53 Setting wintermode 53 Setup report 0020048 65 Shuttingdown 2 2 4 16 Starting the DHW circulation pump 23 Strategy module 14 Summary of standard programs 31 Summer mode 51 Summer winter changeover 51 Switching OFF DHW heating 24 Switching OFF the DHW circulation pump 25 T Thermal disinfection 26 We reserve the right to make any changes due to technical modifications 66 Operating instructions Logamatic 4311 4312 co
21. C or your fax machine if you wish USER NOTE maint after The automatic maintenance message re Hours run Buderus mains active until your local heating instal required ler resets it Buderus We reserve the right to make any changes due to technical modifications 60 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 26 Troubleshooting Faults and fault displays Have your heating engineer remedy all faults immediately Report the fault initially by telephone to your heating installer Set the control unit switch and those on the modules in accordance with chapter Emergency operation Heating system faults are shown on the display The following faults are shown Burner fault boiler 1 3 Boiler temperature sensor Outd Temp sensor Heating circuit flow sensor Heating circuit 1 8 if installed DHW temperature sensor Boiler stays cold DHW remains cold Remote control no communication with heating circuit 1 8 if installed Thermal disinfection Auxiliary temperature sensor Heating circuit 1 8 if installed pump fault DHW pump fault DHW inert anode fault Safety equipment fault No connection to the bus system Address used more than once System flow sensor System return sensor Boiler 1 3 not connected External boiler fault Flue gas sensor fault Flue gas temperature exceeded Address conflict slot 1 4 if in
22. I tf ty fy USER NOTE You can interrupt the deleting process be Buderus fore all of the block have disappeared by releasing the button or by turning the dial back The switching points will then be retained The heating phase with both its switching points 11 30 and 13 00 will be deleted when all the blocks have disappeared The new program with then be saved with a continuous heating phase as Own program 2 Return to the standard display Press the J button We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 39 Joining heating phases Set the OFF switching point of the first period to the ON switching point of the next switching period to join 2 heating phases Example Starting from the standard Noon program for heating circuit 2 you want to join the Monday heating phase from 11 30 until 13 00 h to the heating phase 17 00 to 22 00 h In other words you want to heat continually from 11 30 until 22 00 hrs Select a heating circuit Open the cover Press and hold down the button Turn the dial until Heating circ 2 is displayed Release the button Program selection Press and hold down the button The display briefly shows the heating circuit and then the last set program for this heating circuit The program description flashes Turn the dial until the program selection
23. M426 Additional STB Table 1 Modules and their functions These units are not currently available in the UK and Eire please contact Buderus O Basic equipment X Optional equipment Combination installation not possible USER NOTE The menus displayed on the MEC 2 pro Buderus grammer depend on which modules are fit ted and on their respective settings We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 9 Burner and boiler circuit module ZM432 The ZM 432 module is part of the basic equipment level of Logamatic 4311 and Logamatic 4312 control units The manual switches on the module are only provided for service and maintenance functions If the manual switches are not set to Auto a corresponding message appears on the MEC 2 programmer and the fault indicator illuminates Never use the manual switches to switch OFF the system when you have to temporarily leave the installation The control functions continue to operate in manual mode Burner function Flue gas test button x for flue gas test Press and hold flue gas test button for a few seconds The central heating control operates for 30 minutes with a higher flow temperature During the flue gas test the fault display and for summer mode will flash Press the emissions test switch again to cancel the flue gas test
24. On all weekdays DHW should be heated from 06 30 h until 09 00 h Select a heating circuit Open the hinged cover Press and hold down the button Turn the dial until DHW is shown Release the button Calling up a program Press and hold down the button The menu item Program choice appears together with the pre set DHW program by heat circs Turn the dial to new Release the button To enter the new switching point proceed as for Entering the first switching point page 35 Buderus 44 Factory setting DHW automatic HK1 HK2 WW 5 00 6 00 7 00 8 00 9 00 10 00 11 00 Example DHW new program HK1 HK2 WW 5 00 6 00 7 00 8 00 9 00 10 00 11 00 Fig 12 Entering a new DHW program Heat circ sel DHW Timer Program choice by heat circs Timer Program choice We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 16 Entering anew DHW secondary circulation pump program In the menu item Program selection you can determine whether the DHW circulation pump should be used automatically subject to the heating circuits Program selection acc to heating circuits or whether an individual switching program Own DHW program selection should be used The factory setting is Program choice by heat circs With the factory s
25. ability and the thermal insulation of the building If the Time del outdoor temp exceeds the factory set changeover threshold of 17 C Summer mode is indicated in the display with the symbol ji DHW heating remains active Press the button if you wish to heat for a short time in summer mode The heating system returns to automatic summer mode if you press the button Winter mode Central heating and DHW heating are active if the Time del outdoor temp falls below the factory set changeover threshold of 17 C We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 51 Automatic changeover between summer and winter You must select the required heating circuit before calling up the summer winter changeover You may select either an individual heating circuit or all circuits allocated to the MEC 2 USER NOTE MEC heating circuits see Chapter 8 Buderus page 1 9 Selecting a heating circuit Press and hold down the button Turn the dial until the required heating circuit is displayed Example MEC heat circ Release the button Setting the changeover temperature Press and hold down the 7 button The heating circuit is briefly shown in the display Then the mask with the currently set changeover temperature will be displayed The adjustable temperature flashes Turn the dial to the
26. as strong at night than during the day which is why reception is almost always possible where generally available We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 55 Setting the date Press and hold down the button The day flashes in the date display Set date Set the day by turning the dial The day of the week is automatically matched Release and press and hold down the button again Wednesday Only the month flashes in the date display Set the month with the dial Release and press and hold down the button again The year indication flashes Set the year with the dial Using I you can 07 01 1997 terminate the date input at any time The date will be saved with the changes made thus far 01 01 1997 Tuesday Set date 07 01 1997 Tuesday Set the time Press and hold down the button The hours and minutes flash Set hour You change the time in minute steps by turning the dial Release the button The time has now been saved 15 52 58 Buderus We reserve the right to make any changes due to technical modifications 56 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 22 Flue gas test USER NOTE Module ZM432 Observe the relevant national Buderus requirements regarding limiting the flue gas losses of your heating syste
27. e entered if you are heating DHW according to your own switching program time switch Program choice own DHW The circulation pump is switched OFF automatically during the DHW holiday program You can cancel your holiday program at any time by calling it up and setting the number of days away to 0 We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 49 Interrupting a holiday program You may interrupt your holiday program at any time using the or button and heat according to the set day and night temperatures Room set Press the button Permanent day 21 C Press the button Permanent night Continuing a holiday program Permanent day Press the button Now the heating system operates in holiday mode Buderus We reserve the right to make any changes due to technical modifications 50 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 19 Setting summer winter changeover Apart from the outside temperature Logamatic 4311 and Logamatic 4312 control units consider the ability to store heat and the thermal insulation of the building in question in the following the Time del outdoor temp and automatically change over with time delay between summer and winter mode Summer mode The heating operation will be switched OFF with a delay which depends on the heat retaining cap
28. ease the 7 button Your heating system will constantly operate in winter mode We reserve the right to make any changes due to technical modifications Heat circ sel MEC heat circ Summer winter Perm summer Heat circ sel MEC heat circ Summer winter Perm winter Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 53 20 Changing the standard display The factory set standard display shows the boiler temperature if MEC 2 has been plugged into the control unit The actual room temperature will be displayed if a MEC 2 remote control has been mounted in the wall mounting holder The outside temperature is displayed on the bottom line Instead of outside temperature you can select one of the following displays Boiler temperature if MEC 2 is fitted to the wall mounting frame Boiler temp Flue gas temperature DHW temperature Outdoor temp Outdoor temp Time Date Room measured 22 5 C Outdoor temp 0 C Example The date should be displayed on the bottom line Press and hold down the button The heading for the display setting flashes Boiler temp Turn the dial until Date appears in the display Release the button Date The changes are saved 45 C 20 12 1996 Buderus We reserve the right to make any changes due to technical modifications 54 Operating instructions Logamatic 4311 4312 control devices e
29. ection MEC heat circ An individual heating circuit with Heat circ and heat circ no or Name heat circ and heat circ no should be selected Buderus We reserve the right to make any changes due to technical modifications 28 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Selecting a standard program Example Heating circuit 2 should operate in accordance with the Late evening standard program Open the cover Press and hold down the button if Heating Heat circ sel circ 2 is not displayed Turn the dial until Heating circ 2 is displayed Release the button Heating circ 2 Press and hold down the button Heating circ 2 then briefly appears on the display Tier Heating circ 2 Then the mask with Program choice and the program which was last selected appears pp Timer Example Family The program description flashes Program choice Family We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 29 Turn the dial until the required standard program is displayed Example Late evening Timer Program choice Late evening Release the button The display shows the program description and the first switching point L Evening prog Turning the dial enables you to see in sequence and if necessary modify the switching point
30. et program the DHW circulation pump automatically starts 30 minutes before the earliest switching of any heating circuit in this control unit and ends when the last heating circuit is shut down If your DHW circulation pump should not operate according to the automatic program you can enter a new individual DHW circulation pump program Example On all weekdays the circulation pump should run from 06 30 h until 09 00 h Selecting a heating circuit Open the cover Press and hold down the button Turn the dial until DHW circulat is displayed Release the button Calling up a program Press and hold down the button The menu item Program choice appears together with the pre set DHW circulation pump program by heat circs Turn the dial to new Release the button To enter the new switching point proceed as for Entering the first switching point page 35 We reserve the right to make any changes due to technical modifications Factory setting DHW CP automatic HK1 HK2 ZP 5 00 6 00 7 00 8 00 9 00 10 00 11 00 Example DHW secondary circulation pumps program HK1 HK2 ZP 5 00 6 00 7 00 8 00 9 00 10 00 11 00 Fig 13 Entering a new circulation pump program Heat circ sel DHW circulat Timer Program choice by heat circs Timer Program choice Buderus Operating instructions Logamatic 4311 4312 control device
31. gamatic 4312 control units offer the following functions subject to the function modules which have been fitted 10 channel timer with weekly program Automatic time adjustment from a radio clock signal This feature does not function in the UK and Eire and should be switched off Automatic adjustments between summer and winter Domestic Hot Water DHW production 30 minutes before heating operation Domestic hot water priority Holiday program Frost protection 8 standard programs for selection You can also create your own personal program if none of the above programs meet your requirements Run on time for heating circuit pump and DHW cylinder loading pump 3 minutes subject to operating conditions Protection against condensate Flue gas test Automatic adoption of heating curve Self learning start up and switch off optimisation Selection between external and room temperature control We reserve the right to make any changes due to technical modifications 4 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 2 2 For your safety 1 Correct use The Logamatic 4311 and 4312 control units are only intended to control heating systems in lager houses public and commercial properties 2 2 Please observe these notes Only operate the control units as intended and when they are in perfect working order Arrange for your heating engineer to instruct you in the correct operation of
32. ha AeS 16 8 Setting the room temperature 00 e eee eee 19 9 DHW Domestic Hot Water control 0000 eee ee 23 10 DHW circulation pump control 000002 25 11 Calling up displays 0 020200 cee 27 12 Selecting the standard program eee 28 13 Changing a program 00 e eee 32 14 Creating a new heating program a 42 15 Entering a new DHW program a 44 16 Entering a new DHW secondary circulation pump program 45 17 Party Pause function 0 000 nes 46 18 Holiday program 2a a KAKA LAK EN eee LA beh eee ARSE KPA WA KA 48 19 Setting summer winter changeover a 51 20 Changing the standard display 0 00 e eee eens 54 21 Entering date and time 00 022 ee 55 22 Flue gas test ic GAAN GB eed es debe KA e EBA AN os ne GWA ES be 57 23 Matching the room temperature sensor 2 0 5 58 24 Operating tips for cascade systems 00000 eee 59 25 Automatic maintenance message seers 60 26 TFOUDIESNOOTING 224 4244 645 Gad sds Gee eer bee UNA ete ehe ees eee LG 61 27 Emergency mode ss a kA KK KAKAIN DAL seb eee BAHA eesweeasawids 63 28 Setup report 2 2 342 oie ae oe AA be KNA AKA KTA NG NGA KALAN 65 29 Keyword INdEeX 0 da ak a KANA AKA NAA BA KIA BAN aed ANY NA LANA NA KY 66 We reserve the right to make any changes due to technical modifications Buderus Operating instruct
33. he button Turn the dial until Heating circ 2 is displayed e Release the button Program selection Press and hold down the button The display briefly shows the heating circuit and then the last set program for this heating circuit The program description flashes Turn the dial to Family Release the button Then the standard Family program for heating circuit 2 is active again Return to the standard display Press the S button USER NOTE The program you have created will be sa Buderus ved as Own program 2 and may be called up at any time We reserve the right to make any changes due to technical modifications Heat circ sel Heating circ 2 Timer Heating circ 2 Timer Program choice Own 2 Timer Program choice Family Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 43 15 Entering a new DHW program In the menu item Program choice you can determine whether the DHW heating should be implemented automatically subject to the heating circuits or whether an individual switching program should be used The factory setting is Program choice by heat circs With the factory set program DHW is heated up automatically 30 minutes before the earliest switching point of any heating circuit If your DHW heating should not operate according to the automatic program you can enter a new individual DHW program Example
34. ions Logamatic 4311 4312 control devices e Issue 02 2006 3 1 Introduction Logamatic 4311 and Logamatic 4312 control units are designed for modular applications and will subject to type and extent of the system be equipped with up to four additional function modules The modular design enables with a full compliment of equipment the connection of up to eight heating circuits with mixing valves The modules include controls for manual operation and operating displays Logamatic 4311 and Logamatic 4312 has a safety function built in to the unit The basic equipment level of Logamatic 4311 comprises Weather compensated control of one boiler Use of single stage two stage or modulating burner Boiler control unit MEC 2 programmer The basic equipment level of Logamatic 4312 comprises Weather compensated control of one boiler Use of single stage two stage or modulating burner Boiler control unit e Boiler display for indicating the boiler temperature The MEC 2 programmer is the central control unit Functions and operating setting are shown in the display Buderus The buttons enable functions to be called up If you push a button and hold it down you can change the respective setting using the dial The new value will be accepted and stored after you release the button The unit automatically returns to the standard display if no entry is detected within approx 5 min The Logamatic 4311 and Lo
35. limiter service units mode and MEC 2 Burner Fig 1 Controls Slot 1 2 A B 3 4 Q o Wo e Module FM442 FM442 Heating circuit 3 heating circuit 4 Heating circuit 1 heating circuit 2 ZM432 Boiler circuit burner l Programmer FM441 FM447 Strategy for cascade systems Heating circuit 5 Domestic hot water Circulation pump or heating circuit 5 heating circuit 6 if module FM442 is in slot 3 MEC 2 Fig 2 Module configuration Buderus 8 We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 5 Modules and their functions All modules which are or can be fitted into your The following pages contain information as to which Logamatic 4311 4312 control unit are shown here modules you can use Logamatic 4311 4312 MEC 2 programmer O x programmer module CM431 o o Central module ZM432 3 ae O O Burner boiler circuit functions Function module FM441 x xX 1 heating circuit 1 DHW circuit Function module FM442 x x 2 heating circuits Module Function modue Bukas x x Solar heating circuit Function module FM445 LAP LSP loading system Function module FM446 Interface EIB Function module FM447 Strategy Function module FM448 Central fault message Additional module Z
36. m RISK OF SCALDING During the flue gas test the water can WARNING reach a temperature of over 60 C This creates a risk of scalding at the taps Only draw off mixed hot and cold water during or just after a flue gas test Note that when single lever mixing taps are in their usual position the water that comes out of the tap will be too hot Never draw off only hot water when using two handle mixing taps Always mix with cold water K3 Emissions test switch on the ZM 432 module Fig 14 ZM432 The control unit must be switched ON Press the emissions test switch for several seconds to Flue g test act start the flue gas test The flue gas test lasts 30 minutes and will be indicated Boiler temp on the display During the flue gas test the fault display and T for summer mode will flash The control unit automatically reverts to its previous operating mode when the test has been completed The flue gas test is cancelled by pressing Fi again We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 57 23 Matching the room temperature sensor If the room temperature shown on the display varies from the actual temperature measured with a thermometer the display value can be adjusted using Calibration MEC Calibration effects a parallel offset of the heating curve
37. n Turn the dial until the required day room temperature Room set is displayed Release the button To let the heating system operate in automatic mode Press the button 21 C Permanent day Night room temperature First change to night mode if you want to change the night room temperature whilst your heating system is still operating in day mode The night temperature is subject to the Set back type selected at the service level For the setback types Room setback and Outdoor setback the system only heats up to the set night room temperature if the actual temperature falls below the set night room temperature limit No night room temperature can be selected for the Cut off setback type The system heats to the set night room temperature if the Reduced setback type has been selected Press and hold down the button Turn the dial until the required night room Room set temperature is displayed Release the button To let the heating system operate in automatic mode Press the button 17 C Perm night Buderus We reserve the right to make any changes due to technical modifications 20 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Setting the room temperature for heating circuits without remote control For all heating circuits to which no remote control was allocated during the installation the room temperature is set as follows Ope
38. n displayed MEC is initialised Get data Press the button if you want the heating system data to be adopted from the control unit Send data Press the button if you would like to operate the heating system with modified data from the MEC 2 programmer Of course it is also possible to equip each control unit of a cascade system with its own MEC 2 programmer In Connection with that case the MEC 2 will not need to be re plugged and ctrl panel with Get send data is superfluous Each control unit is controlled separately by its own MEC 2 see the address 01 operating instructions established We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 59 25 Automatic maintenance message If your heating engineer has with your agreement activated the Automatic maintenance message the maintenance message Note maintenance message is Note displayed at the predetermined time on a particular date or after so many operating hours maint message Open the cover Turn the dial maint after You will see either Maintenance by date or Maintenance according to operating hours Date Notify your heating engineer so they can schedule required the inspection and maintenance work The Logamatic telecontrol system enables the maintenance message to be transmitted automatically to your mobile your P
39. n the cover Press and hold down the button Turn the dial until the required heating circuit is displayed Release the button Setting the day room temperature Press and hold down the button Turn the dial until the required day room temperature is displayed Release the button USER NOTE You cannot select a room temperature for Buderus heating circuits set to Permanent such as for example air conditioning or swim ming pool heating systems We reserve the right to make any changes due to technical modifications Heat circ sel Heating circ 2 Room set 21 C Permanent day Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 21 Setting the night room temperature First change to night mode if you want to change the night room temperature whilst your heating system is still operating in day mode The night room temperature is subject to the Set back type selected at the service level For the setback types Room setback and Outdoor setback the system only heats up to the set night room temperature if the actual temperature falls below the set night room temperature limit No night room temperature can be selected for the Cut off setback type The system heats permanently to the set night room temperature if the Reduced setback type has been selected The heating circuit pump remains OFF until the actual temperature falls below
40. ntrol devices e Issue 02 2006 We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 67 Buderus Buderus BBT Thermotechnik GmbH Cotswold Way Warndon Worcester WR4 9SW D 35573 Wetzlar Tel 01905 752794 Fax 01905 753130 www heiztechnik buderus de www buderus commercial co uk info heiztechnik buderus de In the UK Buderus is a trading name of BBT Thermotechnology Ltd
41. ntrol functions continue to operate in manual mode Heating circuit function AUT 0an Manual switch for heating circuit nom The heating circuit pump is switched ON The heating circuit valve can be manually operated AUT The heating circuit operates in automatic mode 0 Only the heating circuit pump is switched OFF The control functions continue to operate DHW function a 0 Manual switch for DHW heating oO The DHW loading pump is switched ON AUT The DHW circuit operates in automatic mode 0 Only the DHW loading pump is switched OFF The control functions continue to operate Buderus Fig 4 FM441 Display General fault e g site error sensor error external faults internal wiring fault module error manual mode These fault messages appear as plain text on the MEC 2 programmer Heating circuit function indicators Display Display Display A Heating circuit in summer mode Heating circuit pump active 3 way mixing valve opens Display y 3 way mixing valve closes Indicators for DHW functions Display Z5 Display L DHW Cylinder loading pump active Display 1 Display Z DHW circulation pump active DHW stays cold Thermal disinfection active Risk of scalding We reserve the right to make any changes due to technical modifications 12 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Heating circuit mod
42. perature Press and hold down the button Turn the dial until the required DHW temperature is displayed Release the button Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 17 Setting the summer winter changeover You must select the required heating circuit before calling up the summer winter changeover You may select either an individual heating circuit or all circuits allocated to the MEC 2 Press and hold down the button Turn the dial until the required heating circuit is displayed Release the button Press and hold down the 7 button Turn the dial until the outside temperature is displayed below which heating should commence Release the 7 button Change operating condition With the cover closed the operating conditions of those heating circuits are changed which have been allocated to the MEC 2 Press and release the button with the cover closed The system provides constant heat at the set day room temperature Press and release the button with the cover closed The system operates constantly in set back heating mode Press and release the button with the cover closed The system operates automatically according to the set switching program Buderus We reserve the right to make any changes due to technical modifications 18 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 8 Setting the room
43. required day room temperature is displayed Press the button Night room temperature Press and release the button whilst the cover is closed Turn the dial until the required night setback room temperature is displayed Press the button We reserve the right to make any changes due to technical modifications 16 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Setting the room temperature for heating circuits without an individual remote control unit Heating circuits are not allocated to the MEC 2 Setting the day room temperature Press and hold down the button Turn the dial until the required heating circuit is displayed Release the button Press and hold down the button Turn the dial until the required day room temperature is displayed Release the button Press the button Setting the night room temperature Press and hold down the button Turn the dial until the required heating circuit is displayed Release the button Press and hold down the button Turn the dial until the required night setback room temperature is displayed Release the button Press the button Setting the room temperature for heating circuits equipped with different remote control units See separate operating instructions for the relevant remote control We reserve the right to make any changes due to technical modifications Set the DHW tem
44. ress and hold down the button DHW circulat Turn the dial until DHW circulat is displayed Release the button Press the button The circulation pump is switched OFF The standard display re appears after 3 seconds We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 25 Setting up automatic mode Open the cover then press and hold down the button sue DHW circulat Turn the dial until DHW circulat is displayed Release the button Press the button The DHW circulation pump operates in automatic mode The standard display re appears after 3 seconds Automatic In automatic mode the DHW circulation pump runs in cyclic intervals The factory setting is set to twice ON for 3 minutes each per hour Your local heating installer may change the cycle times at the service level Thermal disinfection As part of thermal disinfection the DHW is heated once a week to a temperature required to kill off legionnaires bacteria The DHW cylinder loading pump and the DHW circulation pump run constantly during the pasteurisation process RISK OF SCALDING by hot water in the DHW circuit of the hea WARNING ting system if it is not equipped with a ther mostatic mixer During and shortly after disinfection do not open any hot water tap without mi xing in some cold water Buder
45. s e Issue 02 2006 45 17 Party Pause function Party function This function only applies to heating circuits to which the MEC 2 has been allocated as remote control unit MEC heat circ All heating circuits without MEC 2 operate normally Please enter how long the heating system should only operate with the pre set day room temperature Example You have a party and want to heat for the next four hours to the pre set day room temperature Press and hold down the button and simultaneously open the cover of the MEC 2 remote control Party function O hours Turn the dial until the required number of hours is displayed Release the 3575 button The party function starts immediately After four hours the heating system returns to the automatic heating mode Party function 4 hours Call up the party function and turn the dial to O hours if you want to cancel the party function Buderus We reserve the right to make any changes due to technical modifications 46 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Pause function This function only applies to heating circuits to which the MEC 2 has been allocated as remote control unit MEC heat circ All heating circuits without MEC 2 operate normally Enter how long the heating system should only operate with the pre set night room temperature Example You are about to leave your home for three hours and
46. s of the program Monday For changing switching points see chapter Modifying at 18 30 hrs the standard program Return to the standard display Press the J button The heating system now operates with your individual Late evening program for heating circuit 2 When selecting a standard program for other heating circuits proceed as with the example shown above Buderus We reserve the right to make any changes due to technical modifications 30 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Summary of standard programs You may select from seven further standard programs if the Family standard program does not meet your heating requirements Day mode Day mode Day mode Program name Day ON OFF ON OFF ON OFF Family Mo Th 5 30 22 00 Fr 5 30 23 00 Sa 6 30 23 30 Su 7 00 22 00 Early morning Mo Th 4 30 22 00 Early start Fr 4 30 23 00 Sa 6 30 23 30 Su 7 00 22 00 Late evening Mo Fr 6 30 23 00 Late shift Sa 6 30 23 30 Su 7 00 23 00 Morning Mo Th 5 30 8 30 12 00 22 00 Part time work in the morning Fr 5 30 8 30 12 00 23 00 Sa 6 30 23 30 Su 7 00 22 00 Afternoon Mo Th 6 00 11 30 16 00 22 00 Part time work in the Fr 6 00 11 30 15 00 23 00 afternoon Sa 6 30 23 30 Su 7 00 22 00 Noon Mo Th 6 00 8 00 11 30 13 00 17 00 22 00 Midday at home Fr 6 00 8 00 11 30 23 00 Sa 6 00 23 00 Su 7 00 22 00 Single Mo Th 6 00 8 00 16 00 22 00 Fr 6 00 8 00 15 00 23 00 Sa 7 00 23 30 S
47. stalled Incorrect module slot 1 4 if installed Unknown module slot 1 4 if installed Function module not connected No master control unit installed Solar cylinder X in manual mode not available in the UK Heating circuit X in manual mode DHW in manual mode Boiler circuit in manual mode Burner in manual mode We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 61 Fault finding Message Effect Remedy Burner fault Central heating stays cold Reset the burner as described in the boiler or burner documentation Boiler stays cold Central heating may stay cold Check whether the thermostat is set to AUT Check whether fuel is available If unsuccessful Set the burner emergency operation switch on the control unit to manual Set the burner manual switch on the ZM 432 module to max I Il and set the boiler water temperature using the boiler thermostat Notify your heating engineer The DHW temperature does not rise DHW may stay too cold but not necessarily Check whether the thermostat is set to AUT If unsuccessful Position the DHW and heating circuit manual switch on the FM 441 module to manual Notify your heating engineer Safety chain activated Central heating stays cold Check whether the boiler is completely filled with water
48. t Open the cover Press and hold down the button Turn the dial until Heating circ 2 is displayed Release the button Program selection Press and hold down the button The display briefly shows the heating circuit and then the last set program for this heating circuit The program description flashes Turn the dial until the program selection Noon appears Release the button The display shows the 1st switching point of the selected program Buderus Standard Noon program Day mode Night mode 6 00 8 00 11 30 13 00 17 00 22 00 New program Own program 2 gt Day mode turn to 13 00 Night mode 6 00 8 00 17 00 22 00 Fig 10 Deleting a heating phase Heat circ sel Heating circ 2 Timer Heating circ 2 Timer Program choice Midday program Monday at 06 00 We reserve the right to make any changes due to technical modifications 38 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Selecting and deleting a heating phase Turn the dial until the switching point is displayed which you want to delete Midday program Monday at 11 30 h Press and hold down the button Turn the dial to the next switching point of this Switch periods heating phase In this example 13 00 At 13 00 h the display changes to Switch periods is deleted The blocks on the bottom line are deleted is deleted from left to right L
49. t water higher than necessary We reserve the right to make any changes due to technical modifications Do the pre set switching times day and night setback operation for central heating and domestic hot water heating meet your life style requirements Adjust the standard program to meet your requirements Utilise the setting options to change over between summer and winter Avoid making frequent changes to the temperature settings for accommodation and domestic hot water heating All temperature adjustments take time to take effect Only change any adjustments you have made the next day if your previous modifications have failed to provide the desired result A pleasant atmosphere not only depends on the room temperature but also the relative humidity the drier a room the cooler it feels You can improve the relative humidity with houseplants Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 7 4 Controls The Logamatic 4312 control unit is generally operated in the same way as the Logamatic 4311 control unit The following therefore makes no explicit reference to Logamatic 4312 Q o Bo 0 Bo o AO of v v yar Kio A max H amp O H Safety Boiler water F1 F2 Connection Switch for ON OFF switch temperature thermostat Fuses for external emergency
50. tch thermostaton FM 441 2 Logamatic ZM 432 boiler FM 441 DHW Logamatic heating circuit 4311 circuit module 4311 module module Central heating failed 1 AUT AUT 60 90 C W Heating circuits failed DHW heating failed heating circuits are 1 AUT W 60 C AUT supplied normally Boiler operation failed 1 W AUT 90 C AUT Table 4 Settings for an emergency operation Manually de couple the heating circuit mixing valve and position towards Open or Close safeguard against return until the required room temperature has been achieved Never close the heating circuit mixer to prevent the DHW freezing inside the heating system In case of faults immediately notify your local heating installer who will provide a professional service It would be helpful for your heating engineer if you could provide him with precise details regarding the fault condition We reserve the right to make any changes due to technical modifications Buderus 64 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 28 Setup report Operating values Operating values Input range Factory seiting Setting Factory set programs Family Family Early morning Late Evening Morning Afternoon Midday Single Senior New DHW 30 60 C 60 C Changeover between summer and 10 30 C 17 C winter Day room temperature 11 30 C 21 C Night room temperature 10 29 C 17 C Table 5 Opera
51. temperature for all heating circuits allocated to the MEC 2 During the installation your installer will determine which heating circuits must be controlled by the MEC 2 programmer These heating circuits are referred to as MEC heat circ You set the room temperature for MEC heat circ with the dial USER NOTE Any temperature modification applies to all Buderus heating circuits allocated to the MEC 2 programmer at any one time If you have selected a single heating circuit and you want to set the room temperature with the i button the following fault message appears Setting not Setting possible MEC heat circ select not possible Factory setting MEC heat circ Day room temperature 21 C select Night room temperature 17 C With the cover closed turn the dial to the required room temperature without pressing any other button You may select the room temperature in degree steps between 11 C and 30 C The set temperature is displayed via an LED by the dial For temperatures below 15 C or above 25 C LED or LED also illuminates We reserve the right to make any changes due to technical modifications Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 19 Setting the day room temperature First change to day mode if you want to change the day room temperature whilst your heating system is still operating in night mode Press and hold down the butto
52. ter completing your entry it would be sensible to only enter a holiday program on the day you of your departure Open the hinged cover Press and hold down the button Heat circ sel Turn the dial until the heating circuit for which you want to set up the holiday program is displayed Example Heat circ 2 Release the button Heat circ 2 Press and hold down the 1 button Holiday program Heat circ 2 Buderus We reserve the right to make any changes due to technical modifications 48 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Turn the dial to the number of days on holiday Release the 1 button Holiday days Room set Press and hold down the 1 button The temperature value flashes Holiday days Turn the dial until the room temperature required for the holidays is displayed In the example 12 C Release the 1 button Room set The holiday program becomes active immediately The holiday program terminates automatically with the expiry of the set number of holiday days the heating system then returns to automatic mode The DHW heating and circulation pump will be switched OFF if DHW is only produced subject to heating circuits time switch Program choice by heat circs and all heating circuits are in holiday mode You cannot enter a separate DHW holiday program A separate DHW holiday program can b
53. the J button We reserve the right to make any changes due to technical modifications Midday program Monday at 06 00 hrs Midday program Monday at 13 00 h Switch periods is combined Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 41 14 Creating a new heating program Make a note of the switching points and the temperatures of your new heating program You can enter up to 42 switching points per week Selecting a heating circuit Open the cover Heat circ sel Press and hold down the button Turn the dial until Heating circ 2 is displayed Release the button Program selection Heating circ 2 Press and hold down the button The display briefly shows the heating circuit and then the last set program for this heating circuit The program description flashes Timer Program choice Family Turn the dial to program selection New Timer Program choice Release the button The display then shows the mask for the first new switching point New Switch Point To enter the new switching point proceed as for Entering the first switching point page 35 Buderus We reserve the right to make any changes due to technical modifications 42 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Back to the standard Family program Select a heating circuit Open the hinged cover Press and hold down t
54. the set night room temperature or the outside setback temperature Press and hold down the button Turn the dial until the required night setback room Room set temperature is displayed 17 C Release the button Setting the room temperature for Perm night heating circuits with different remote control units You must set the room temperature for all heating circuits to which a remote control without display was allocated during the installation using this remote control If you try to set the room temperature via the CD button the adjacent fault message will be displayed a i 2 ae Setting not possible Other remote control Buderus We reserve the right to make any changes due to technical modifications 22 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 9 DHW Domestic Hot Water control The FM 441 heating circuit and DHW module should be installed to provide DHW control In the factory this control unit is set to commence heating the DHW 30 minutes before starting the heating circuits The DHW control can be set subject to heating circuit or via an individual time program DHW program DHW will not be produced if all heating circuits are operating in setback or holiday mode DHW temperature Press and hold down the button DHW set 60 C Turn the dial until the required DHW temperature is shown Release the button The DHW temperature has been saved
55. ting settings We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 65 29 Keyword Index A Automatic changeover between summer and winter 20000 0500 52 Automatic DHW operation 24 B BOST 2 bac g be ae amp ean dee Ae wee a 10 Burner functions 10 Burner switch s ao sos s sosar o e aad 10 C Cascade systems 000004 59 Changeover between summer and winter 18 Changing the standard display 54 Constant DHW circulation pump operation 25 Constant DHW operation 24 Controls e i e aa a E A 8 Creating a new heating program 42 D Day room temperature 16 17 20 21 DHW circulation pump 25 45 DHW control o o os osoa ona a 23 DHW functions aoaaa 12 Displays maa BAG Kh eee LA 27 Domestic hot water temperature 17 23 E Emergency mode fault 64 Emissions test switch 57 F Fault displays 61 Fault finding se e cs e ao a a a a aa 62 Flue gas test oaoa aa a 10 57 H Heat economically 7 Heating circuit and DHW module 12 Heating circuit function 13 Heating circuit functions 12 Heating circuit module 13 Heating with manual override 63 Holiday program 222245 4
56. u 8 00 22 00 Senior Mo Su 5 30 22 00 New Table 2 Standard programs After selection the display indicates the highlighted program description as shown in the table We reserve the right to make any changes due to technical modifications Buderus Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 31 13 Changing a program Move the switching points or insert new ones if you Day mode e g 21 C intend changing the heating phases of any program MEC 2 saves the modified program as OWN and the Night mode number of the heating circuit if you make changes to the 5 30 22 00 settings of a standard program g a standard progra Day mode e g 21 C If you have selected a program for an individual heating circuit you can do the following Night mode display the switching points by turning the dial 9 30 6 30 22 00 modify the switching times in 10 minute steps using ngo Changing a progam the O button or select the set room temperature for night or day mode using the 1 button Moving a switching point Example You want to move the heating ON time for Tuesdays in the standard Family program for heating circuit 2 from 05 30 to 06 30 h Heat circ sel Open the cover Press and hold down the button Turn the dial until the required heating circuit is displayed Release the button Press and hold down the button
57. ule FM442 The FM442 function module controls two independent heating circuits with valve Each control unit can accommodate up to four such modules The manual switches on the module are only provided for service and maintenance functions AUT If the manual switch i is not set to automatic a corresponding message appears on the MEC 2 and the fault indicator illuminates Never use the manual switches to switch OFF the system when you have to temporarily leave the installation The control functions continue to operate in manual mode Heating circuit function 1 2 AUT Manual switch heating circuit Bom The heating circuit pump is switched ON The heating circuit valve can be manually operated AUT The heating circuit operates in automatic mode 0 Only the heating circuit pump is switched OFF The control functions continue to operate We reserve the right to make any changes due to technical modifications Fig 5 FM442 Display General fault e g site error sensor error external faults internal wiring fault module error manual mode These fault messages appear as plain text on the MEC 2 programmer Heating circuit function indicators Display Display A y Heating circuit in summer mode Heating circuit pump active Display 3 way mixing valve opens Display 3 way mixing valve closes Buderus Operating instructions Logamatic 4311 4312 control devices
58. until the set room temperature for setback is displayed e g 17 C You cannot enter any temperature values here You can only select and save preset day and night temperatures Release the 1 button We reserve the right to make any changes due to technical modifications New Switch Point New Switch Point New Switch Point Friday at 10 00 h New Switch Point Friday at 10 00 h Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 Buderus 35 The switching point will only be adopted and the blank mask for the next new switching point displayed after you have entered all three details New Switch Point Proceed in the same way to enter the 2nd switching point The modified program will be saved as Own 2 and as heating circuit 2 Return to the standard display Press the J button Deleting a switching point Example You would like to delete the switching point 22 00 in the Family program for heating circuit 2 Select a heating circuit Open the hinged cover Press and hold down the button Heat circ sel Turn the dial until Heating circ 2 is displayed Release the button Heating circ 2 Program selection Press and hold down the button The display briefly shows the heating circuit and then the last set program for this heating circuit The program description flashes Timer Heating circ 2 Turn the dial until your Family program
59. us We reserve the right to make any changes due to technical modifications 26 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 11 Calling up displays Displaying operating settings This function enables you to gain an overview of system conditions All operating values relate to the previously selected heating circuit The boiler and outside temperature appear on the standard display if the MEC 2 programmer is connected with the control unit With the cover open turn the dial clockwise without pressing any other button Burner condition 1st stage and hours run By turning the dial further the following operational details will appear in sequence Burner condition 2nd stage and hours run this display only appears for two stage burners Daily consumption currently yesterday the day before yesterday Current weekly consumption last week two weeks ago Current annual consumption last year the year before last Actual and maximum flue gas temperature Actual heating circuit room temperature not possible if the MEC 2 is fitted to the control unit Set heating circuit room temperature Heating circuit operating state Actual heating circuit flow temperature Actual DHW temperature Set DHW temperature Operating mode DHW Operation state DHW circulation pump and cylinder loading pump We reserve the right to make any changes due to technical modifications
60. ver then press and hold down the button Turn the dial until DHW is shown Release the button Press the button DHW heating now operates in automatic mode The standard display re appears after 3 seconds Automatic day Buderus We reserve the right to make any changes due to technical modifications 24 Operating instructions Logamatic 4311 4312 control devices e Issue 02 2006 10 DHW circulation pump control The FM 441 heating circuit and DHW module should be installed to provide DHW circulation pump control In the factory this control unit is set to commence the DHW circulation pump operation 30 minutes before starting the heating circuits The DHW circulation pump control can be set subject to heating circuit or via an individual time program The DHW circulation pump is switched OFF if all heating circuits are operating in set back or holiday mode Setting constant operation Open the cover then press and hold down the button Heat circ sel Turn the dial until DHW circulat is displayed Release the button DHW circulat Press the button Now the DHW circulation pump operates constantly The factory setting is set to twice on for 3 minutes each per hour Your local heating installer may change the cycle times at the service level The standard display re appears after 3 seconds DHW circulat Perm operation Switching OFF the DHW circulation pump Open the cover then p

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