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Operating instructions Logamatic 4211

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1. Common flow 45 C Date 20 08 2001 You can determine the permanent display of the programming unit The following permanent displays are available Common flow if MEC2 is installed as a wall mounted unit Outside temp DHW Time Date Only if DHW is installed Hold the Display key down and select the required permanent display with the rotary selector here Date Release Display key The selected permanent display has now been saved Buderus Logamatic 4211 Subject to technical modifications 27 Extended functions 7 5 Setting the date and time USER INFORMATION Date and time are preset at the factory This function is safeguarded through battery backup e independent of the mains power supply USER INFORMATION We recommend leaving the radio clock receiver disabled outside Germany to prevent the reception of false signals incorrect time setting Buderus 28 The MEC2 contains a radio receiver that under normal reception conditions constantly monitors and corrects the control unit time switch When using the MEC2 programming unit the reception of the radio clock signal depends on location and position Reception of the radio clock signal is indicated by symbol on the display Normally reception is possible within a radius of 1500 kil
2. G O O O O 25 15 O 16 MAR A apt AH St 7 PROG A A 17 10 11 12 13 14 15 7 747 012 074 01 1RS Fig 7 MEC2 programming unit Display Rotary selector Constant heating mode Constant setback mode Enter the day of the week Enter holidays on oOo a fF WO DN Select standard display Automatic heating mode in acc with a time switch 9 Radio clock signal only within Germany 10 Display for set room temperature 11 Enter DHW temperature reheating 12 Set the time 13 Change temperature values 14 Summer winter time adjustment 15 Back to the standard display 16 Select a time switch program 17 Select heating circuits DHW circuit Logamatic 4211 Subject to technical modifications Buderus 15 NE Controls and MEC2 programming unit 5 3 Switching on the control unit e Check that the control unit ON OFF switch gt Fig 8 1 and the switches on the fitted modules gt Fig 8 2 are set to I and AUT e Switch the control unit ON by setting the ON OFF switch to I gt Fig 8 1 After approximately 2 minutes all modules fitted to the control unit are recognised and the standard display is shown 5 4 Switching off the control unit e Switch the control unit OFF by setting the ON OFF switch to 0 gt Fig 8 1 e When there is a risk Isolate the heating system from the ma
3. 5 La pra c O O Operating instructions SHL 00 6E0 ZLO pl Z For users Logamatic 4211 Read carefully before use Buderus 31 99 8002 0 226 910 ZbZ Z A Contents 1 MEPOGUCTION its ces naa rd a as wh 4 2 What you should know about your heating system 5 3 Tips on energy efficient heating 0 o o ooooooo 10 AM o gon 11 4 1 About these instructions on2se242c5 encdangedgedstec he dean xaas 11 4 2 COWSCIUSS a pasara bated ede seas eters Bo eee Sees 11 4 3 Standards and guidelines directives 2 2 2 000 ce es 11 NS A os 2 oe ee ae Ce ed Yee eed eee Re eee ee he ee 11 4 5 Please observe these notes 2 6 ee o 11 4 6 Cleaning the control unit o o o o ooo 12 4 7 Disposal ojos ias era a ea a Pee a a is Hee eRe es 12 5 Controls and MEC2 programming unit 13 51 COnMalUMMCONNONS s acia acertar dune es duce ohh whe A 13 5 2 MEC2 programming unit wis aa ese oe dee Ge ede Goes a beaded 14 5 3 Switching on ihe control Unit occiso ce eve we ew ee ee eee OR eee Sees 16 54 Switching off the control Unil lt 242 640 668 eeee ot eavds AA dace 16 6 Standard functions sesos obs cow cede Sooo eee rr 17 6 1 Simple operatios exar Rowe ee bs Oe wa aras woes HS 17 6 2 Permanent display 6 4 24454 65445 fee eee Se hee ee eee we ee 18 6 3 Selecting the operating mode 20 022 ee eee ee 18 6 4 Setting
4. 26 76 Boiler flue gas o o 5 P Burner function 0004 65 Permanent display 18 Burnerswitth ee 65 Pipework e pp bak aS ms Goa eee we we ara 5 Cc R Central module 16 Radiator AA 5 Circulation pump o ooo a a Be eR a 43 Room temperature D matching oaa a 48 Day mode o 9 18 required set 17 20 DHW cylinder 00 0 ee eee 5 S DHW function o oo s 66 Setting summer mode 41 DHW temperature 23 Setting the date cuac ARA 29 E Setting the time 62 oaa 29 Emergency mode 73 Setting winter mode 41 Emergency stop switch 16 Setup report o 76 Emissions test key aoaaa 65 Standard program aoaaa saarn 36 F Standard settings a a o e 27 Factory set Switching point oao o 38 DHW temperature 22 T Factory setting 62 Thermometer o ooo 48 Factory settings 76 Thermostatic radiator valve 6 Fault message Setting Not possible 33 Thermostatic valve 2 ee 6 Fault message Time switch not possible 33 Time switch ee ee 34 Fault messages 0000 70 Troubleshooting 69 71 Fauli oesi 3 840854 864 e ee db eee 69 U Fitted modules 13 Underfloor heating system 73 Flue gast test
5. 7 747 012 038 01 1RS Fig 24 Heating with manual override 1 Module switch 2 Boiler water thermostat 3 Burner emergency operation switch 4 ON OFF switch e To safeguard heat supply in the event of a fault set the module switches gt Fig 24 1 to Y e Set the boiler water thermostat gt Fig 24 2 to 60 C 90 C in case of DHW failure to 60 C e Set burner emergency switch gt Fig 24 3 to u Burner stage 1 will always be directly controlled The setting for burner stage 2 must be made using the switch on the module e Setthe ON OFF switch gt Fig 24 4 on the control unit to 1 Buderus 74 Logamatic 4211 Subject to technical modifications Operation in the event of a fault E Fault Settings for emergency operation ON OFF switch Switch heating circuit Boiler water Switch heating circuit and DHW ZM422 thermostat module FM442 Central heating failed m AUT 60 C 90 C W Heating circuits failed DHW heating failed m Y 60 C AUT Heating circuits supplied normally Boiler operation failed m W 90 C AUT Tab 5 Settings for emergency operation Manually disconnect the heating circuit mixer and position towards Open or Closed prevent re engagement so that the required room temperature is achieved To prevent the DHW freezing inside the heating system never fully close the heating circuit mixer In case of faults immediately not
6. aa Example In the Family program the switching point Monday 22 00 is to be deleted for heating circuit 2 Your modified program will be saved under the program name Own and the ED MSI number of the heating circuit C o g a 2 05 30 22 00 B 1 2 gt gt 05 30 7 747 012 053 13 1RS Fig 17 Deleting a switching point A Family program B New program Own program 2 1 Day mode 2 Night mode e Select a heating circuit gt Chapter 7 6 Example Heating circ 2 e Select the standard program for the chosen heating circuit gt Chapter 7 10 Example Family program The first switching point start point Monday at 05 30 at 21 C will be Family program displayed Monday at 05 30 21 C Turn the rotary selector to the switching point you want to delete here 22 00 The switching point to be deleted is displayed Family program Monday at 22 00 17 C Simultaneously press and hold Holiday and Display k ae Buderus Logamatic 4211 Subject to technical modifications 53 En Additional programming options Family program Delete Monday 22 00 EEREEEHE Own program 2 Monday at 17 00 21 C Buderus The bottom line shows eight blocks that are deleted in one second intervals from left to right The switching point has been deleted when no blocks are left The deleting process will be terminated if you release the keys prematurel
7. In automatic mode In manual mode Automatic mode Generally homes are heated less at night than during the day With the MEC2 programming unit you don t need to adjust the thermostatic radiator valves before bedtime or in the morning The automatic changeover of the MEC2 programming unit does this for you It changes over between day mode standard mode and night mode setback mode The times at which your heating system changes from day to night mode and vice versa are factory set via standard programs gt Chapter 7 10 However you or your heating contractor can modify these settings gt Chapter 7 12 Manual mode For example if you want to heat longer in the evening or not quite as early in the morning you can also select day and night mode manually gt Chapter 6 3 2 You can also use manual mode to heat on cooler days when the system operates in summer mode Logamatic 4211 Subject to technical modifications Standard functions 6 6 3 1 Selecting automatic mode In automatic mode your heating system will operate with the time switch program i e central and DHW heating at preset times Example Enabling automatic mode Press AUT The AUT LED illuminates automatic mode is enabled In addition either the Day mode or Night mode LED will illuminate This is subject to the set times for day and night mode Set room 21 C Automatic day and night mode
8. 06 30 23 00 B 1 2 he 06 00 22 00 c 1 x v 30 min 2 05 30 23 00 7 747 012 053 19 1RS Fig 13 DHW heating begins 30 minutes before day mode of the first heating circuit and ends with the beginning of night mode of the last heating circuit Heating circ 1 Heating circ 2 DHW Day mode N 0 gt Night mode If you require additional hot water you may at short notice heat DHW with the DHW heating once function gt Chapter 6 5 2 USER INFORMATION DHW will not be subject to a temperature setback if you operate one heating circuit in Constant day mode and DHW is being heated by heat circs USER INFORMATION DHW will not be heated if you are operating all heating circuits in the Constant night mode and DHW is heated by heat circs Buderus Logamatic 4211 Subject to technical modifications 35 Extended functions 7 10 Selecting a standard program The MEC2 programming unit is equipped with eight different preset heating NS programs that act as standard programs See the following page for a summary of the preset times of the standard programs Please check which standard program best meets your requirements First check the number of switching points and then the times The Family program FED ogo is preset at the factory ii O a e Open flap e Selec
9. Have your heating contractor remedy any faults immediately All system faults are displayed on the MEC2 programming unit Report the fault by telephone to your heating contractor Where necessary setthe module switches according to the instructions in Chapter 12 Provided your control unit is equipped with the above modules the following faults may be reported Burner fault boiler 1 Boiler temperature sensor Outside temperature sensor Heating circuit flow sensor heating circuit 1 4 if installed DHW temperature sensor Boiler remains cold DHW stays cold DHW warning Remote control no communication with heating circuit O 4 if installed thermal disinfection Heating circuit 0 4 if installed pump fault DHW pump fault DHW inert anode fault Safety equipment fault No connection to BUS system Address used more than once Boiler 1 no connection External boiler fault Flue gas sensor fault Flue gas temperature exceeded Address conflict slot 1 2 if installed Incorrect module slot 1 2 if installed Unknown module slot 1 2 if installed Function module not connected No master control unit installed Heating circuit X in manual mode DHW in manual mode Burner in manual mode Troubleshooting fa Buderus Logamatic 4211 Subject to technical modifications 69 RA Troubleshooting 11 1 Simple troubleshoot
10. rectify any heating system faults immediately SYSTEM DAMAGE If an underfloor heating system is ON installed Before operating your heating system manually check the temperature settings of the temperature limiter on the boiler If the temperature is set incorrectly the underfloor heating system could overheat switches are provided for manual mode on the control unit and on the modules In position YY the relevant pump is started The mixers remain volt free and can be manually adjusted 12 1 Emergency mode If the electronics fail the control unit can operate in emergency mode In emergency mode all pumps continue to run and the mixers are volt free They can be set manually In such cases notify your heating contractor Operation in the event of a fault 12 Buderus Logamatic 4211 Subject to technical modifications 73 eal Operation in the event of a fault 12 2 Heating with manual override For emergency operation switches are provided on the control unit and on the modules In position Y the relevant pump is started The mixers stay at zero volts and should be manually adjusted Before making any adjustments for manual mode check the settings on the various modules for possibly incorrect settings If the control system indicates a fault you can temporarily run your heating system manually
11. 00 is now set as the new switching point New switch point Release Time to save your input Friday at 10 00 OO Hold Temp down and select the required temperature with the rotary selector here 17 C O The display shows the set value New switch point Release Temp key to save your input Friday at 10 00 17 C Buderus Logamatic 4211 Subject to technical modifications 51 oy Additional programming options USER INFORMATION You cannot freely enter any temperature here Only the factory set day and night temperatures are available which you can however modify yourself gt Chapter 6 4 USER INFORMATION ai Only after all three details day time temperature have been defined for the new switching point will it be automatically saved under Own program and the heating circuit number here 2 The saving process is not shown on the display The display shows the blank screen New switch point for the next switching point To enter the next switching point e g Friday 13 00 21 C simply repeat the New switch point procedure detailed above at E Press Back to return to the permanent display Buderus 52 Logamatic 4211 Subject to technical modifications Additional programming options a 8 1 2 Deleting switching points
12. 1 Setting the DHW temperature RISK OF SCALDING A from hot water WARNING The DHW cylinder temperature is preset to 60 C There is a risk of scalding from hot water if your heating contractor has set the DHW temperature higher or has enabled the Therm disinfect function and the heating water circuit of your heating system is not equipped with a thermostatically controlled mixer Please note that fittings can also get very hot e in such cases only ever draw off mixed water hot and cold You can change the DHW temperature as follows Hold down the DHW key and select the required DHW temperature within the rotary selector a O Release DHW key The newly selected DHW temperature is saved in approximately 2 seconds The permanent display will then appear again 60 C 2 Y Z A Y USER INFORMATION e For thermal disinfection the DHW will be heated to at least 60 C once or twice per week to kill off possible bacteria e g legionella Buderus Logamatic 4211 Subject to technical modifications 23 ea Standard functions Buderus 24 DHW actual Reheating 6 5 2 Heating DHW once If the DHW LED illuminates only a limited amount of hot water remains in the cylinder Should you require a larger amount of DHW proceed as follows Press DHW The DHW LED flashes and heating DHW once commences Subject to the size of the DHW cylinder and the boiler output DHW will
13. 21 C will be displayed Midday program Monday at 06 00 21 C Turn the rotary selector to the stop point of the first heating phase you want to KN 0 connect with another here 13 00 The display shows the stop point to be connected Midday program Monday at 13 00 17 C Buderus Logamatic 4211 Subject to technical modifications 57 En Additional programming options Switch period is combined Own program 2 Monday at 22 00 17 C Buderus Hold down Time and turn the rotary selector clockwise until the start point of the second heating phase i e the next consecutive heating phase is displayed which you wish to combine with the first heating phase here 17 00 If you have selected the start point of the next consecutive heating phase the bottom line will show eight blocks which are deleted in one second intervals from left to right When no blocks are left both heating phases have been combined The deleting process will be terminated if you release the Time key prematurely or turn the rotary selector back In this case all switching points for the heating phase remain active Release Time to save your input The new program that has been modified by the connection process is saved under Own program and the heating circuit number here 2 You can call up your new program by pressing Prog and turning the rotary selector gt Chapter 7 10 Press
14. 26 24 a 22 20 18 Y 16 14 2 12 4 10 A 6 0 3 6 9 2 8 186 2 pp 7 747 012 073 04 1RS Fig 15 Actual and adjusted outside temperatures compared 1 Current outside temperature 2 Adjusted outside temperature x Time y Outside temperature Summer mode Heating operation is switched off if the Adjusted outdoor temperature exceeds the factory set changeover threshold of 17 C Summer mode is indicated on the display with symbol 1 DHW heating remains operational Press Day mode if you want to heat at short notice in summer mode The heating system returns to automatic summer mode if you press AUT Winter mode DHW and central heating are operational if the Adjusted outside temperature falls below the factory set changeover threshold of 17 C Setting the automatic summer winter time adjustment Select the required heating circuit before calling up the summer winter time adjustment You may select either an individual heating circuit or all circuits assigned to the MEC2 e Select a heating circuit gt Chapter 7 6 Example Heating circ 2 40 Logamatic 4211 Subject to technical modifications Extended functions Setting the changeover temperature Hold down Su Wi The display briefly shows the heating circuit Then turn the rotary selector to the required changeover temperature below which you want to heat here 18 C CID Q The display shows the set changeov
15. Automatic day At fixed times central heating is provided or the room temperature is set back 21 C 1 17 C 2 L 05 30 22 00 7 747 012 053 18 1RS Fig 9 Changeover from day and night mode at fixed times example 1 Day mode 2 Night mode 6 3 2 Selecting manual mode Press either Day mode or Night mode to change to manual mode Press Day mode The Day mode LED illuminates Now your heating system is in constant day Set room mode standard mode 21 a Constant day Press Night mode The Night mode LED illuminates Your heating system is now in constant night Set room mode setback mode and operates at a lower room temperature 17 C Constant night USER INFORMATION If you have selected manual mode other automatic controls will also be switched off e g the summer winter time adjustment gt Chapter 7 13 eJ Buderus Logamatic 4211 Subject to technical modifications 19 ea Standard functions 6 4 Setting the room temperature With the flap closed you can adjust the room temperature with the rotary selector With the flap open also press Day mode or Night mode With the rotary selector you can select the room temperature in degree steps between 11 C day or 2 C night and 30 C The set temperature is displayed via an LED next to the rotary selector For temperatures below 15 C or above
16. Setting the party function asia adria a o arca a a 47 7 19 Setting the pause function o o ooo 47 7 20 Room temperature matching lt lt lt ooo ooo 48 7 21 Automatic maintenance Message o ooooocooocom oo 49 8 Additional programming options 00 065 50 8 1 Modifying the standard program by inserting deleting switching points 50 8 2 Creating a new heating program o ooo 2 02 ee es 59 8 3 Creating anew DAW program cc daa ed we we oes 62 8 4 Creating a new DHW circulation pump program 2 2 2 eee es 63 9 Modules and their functions 00002 c eee eee 64 9 1 ZM422 central module standard equipment level o 65 9 2 FM442 function module accessory ooo o es 67 10 Boiler flue gas test o oo oococoocoocr ee 68 11 Troubleshooting lt 2 2 6 be6645 oie hee eh wee eee a be xe 69 11 1 Simple troubleshooting y 6 4 4c bot DA ee eee See a be ee Bae 70 11 2 Troubleshooting sus a See E ak ee ae a eae rara PES abe OSs aa 71 12 Operation in the event ofafault o o o ooo 73 12 1 Emergency mode se al ae e rad ba a ee e a a 73 12 2 Heating with manual override o o xocrzonsorinsara nora 74 lt gt report A o een eas Se ae Se ee 76 14 Keyword index 0 0 2 es 77 Buderus Logamatic 4211 Subject to technical modification
17. be equipped with several heating circuits If you want to change the room temperature for a different heating circuit than the one last selected first select the required heating circuit Subject to the equipment level of your heating system the following heating circuits can be selected MEC2 heating circuits all heating circuits assigned to the MEC2 gt Chapter 7 8 Heating circuit O 8 If several heating circuits are assigned to the MEC2 the temperature for these heating circuits can only be adjusted for all Otherwise a fault message Setting Not possible MEC heat circ select will appear In such cases select MEC heat circ e Open flap Hold down Heating circuit and select the required heating circuit with the rotary selector here Heating circ 2 Release Heating circuit key The displayed heating circuit is now selected As soon as the heating circuit has been selected the display returns to the permanent display Buderus Logamatic 4211 Subject to technical modifications 31 Set room 21 C Automatic day Buderus Press and hold down Temperature First the heating circuit whose temperature you want to adjust is displayed After approximately 2 seconds the display will show the currently selected temperature and operating mode Adjust the temperature with the rotary selector here 21 C for the heating circuit Release the key to save your input The day r
18. down the heating system during temporary absence Use the holiday function for this purpose gt Chapter 7 16 The control functions remain operational in manual mode Heating circuit function Heating circuit switch oni a e g for heating circuit 1 and 2 O j USER INFORMATION In standard mode set the switches to AUT The positions 0 and Y manual mode are special settings reserved for heating contractors only Y The heating circuit pump is switched on The mixer is switched volt free and can be manually operated AUT The heating circuit operates in automatic mode O The heating circuit pump is switched off The mixer is switched volt free The control functions remain active Current functions are indicated by LEDs Modules and their functions EA Fig 22 FM442 Display General fault e g on site faults sensor faults external faults wiring faults internal module faults manual mode The fault messages appear as plain text on the MEC2 programming unit LEDs for the following functions Display A Mixer opens hotter Display vy Display Display Mixer closes colder Heating circuit in summer mode Heating circuit pump operational Buderus Logamatic 4211 Subject to technical modifications 67 10 Boiler flue gas test 10 Boiler flue gas test WARNING RISK OF SCALDING During the flue gas test the water can reac
19. overheated rooms are unhealthy plus they waste money and energy If you reduce the day room temperature for example from 21 C to 20 C you can save approximately six percent of your heating bill e Also heat in an energy conscious manner in spring and autumn and utilise the summer winter time adjustment gt Chapter 7 O A pleasant room climate not only depends on the room temperature but also on the relative humidity The drier the air the cooler a room feels You can optimise the relative humidity with house plants e You can also save money when heating DHW Only operate the DHW circulation pump via a time switch Research has shown that it is generally sufficient to run the DHW circulation pump for only three minutes every half hour e Arrange for your heating contractor to service your heating system annually Buderus 10 Logamatic 4211 Subject to technical modifications 4 Safety 4 1 About these instructions These operating instructions contain important information regarding the safe and correct operation of the Logamatic 4211 control unit 4 2 Correct use The Logamatic 4211 control unit is designed to control heating systems in detached houses apartment buildings residential complexes and other buildings 4 3 Standards and guidelines directives The design and operation of this product conform to European Directives and the supplementary national requirements Its conformity is demonstrate
20. switch or isolate the heating system from the mains supply by removing the main fuse e Arrange for your heating contractor to rectify any heating system faults immediately RISK OF INJURY SYSTEM DAMAGE caution from operator error Operator errors can result in injury and or damage to property Ensure that children never operate the appliance unsupervised or play with it Ensure that only personnel able to operate the appliance correctly have access to it Buderus Logamatic 4211 Subject to technical modifications 11 MEN safety RISK OF SCALDING For thermal disinfection the entire DHW system is set at the factory to heat up to WARNING 70 C start Tuesday night at 01 00 e f required e g shift work your heating contractor can alter the start time e During this time never open any hot water tap without mixing in cold water if the DHW circuit of your heating system is not equipped with a thermostatic mixer e As there is a risk of scalding at temperatures above approximately 60 C ask your heating contractor about the set DHW temperatures SYSTEM DAMAGE IN from frost caution When the heating system is switched off it can suffer damage from frost Protect your heating system against frost damage by draining it and the DHW pipework at the lowest possible point 4 6 Cleaning the control unit e Only clean the control unit with a damp cloth 4 7 Disposal e Dispo
21. the room temperature ooo ooo eee ee 20 65 Heating DAW o Er Ca dese Se AAA A A oe ee 22 7 Extended functions a Gens eee tee pe eee we Sue uae 46eGes8 25 7 1 Keys for extended functions 2 ee 25 7 2 Controlling the extended functions 2 ooo e 26 7 3 Displaying Operating Values v0 44 oak 2 aaa ada ee Be eS 26 7 4 Changing the permanent display o ooo e eee 27 7 5 Setting ihe date and time 2 22664 bee se eee eee rara 28 7 6 Selecting a heating circuit averia aaa ped onee tae aaas 30 7 7 Adjusting the room temperature for another heating circuit 31 7 8 Heating circuits with MEC2 programming unit o oo ooo ooo 33 7 9 Selecting and modifying a heating program o o ooo ooo oo 34 7 10 Selecting a standard program o o o ooo ooo 36 7 11 Summary of standard programs asoan 37 7 12 Modifying the standard program by moving switching points 38 7 13 Setting the summer winter time adjustment o o 40 7 14 Setting the DHW operating mode o o ooo ooo 42 7 15 Setting the operating mode for DHW circulation lt lt lt o 43 7 16 Setting the holiday function vis Gee de pies ad e r a ee dae 44 Buderus 2 Logamatic 4211 Subject to technical modifications 7 17 Interrupting and continuing the holiday function ooo o 46 7 18
22. the standard program for the chosen heating circuit gt Chapter 7 10 Example Midday program The first switching point start point Monday at 06 00 at 21 C will be displayed The displayed temperature depends on the set room temperature Midday program Monday at 06 00 21 C Buderus Logamatic 4211 Subject to technical modifications 55 oy Additional programming options Monday at 17 00 21 C Buderus 56 O Midday program Monday at 11 30 21 C Switch period is deleted tT yy TY gt Own program 2 Turn the rotary selector to the start point of the heating phase you want to delete here 11 30 Hold down Time and turn the rotary selector to the stop point of the heating phase you want to delete here 13 00 If you have selected the stop switching point of the heating phase you want to delete the bottom line will show eight blocks that are deleted in one second intervals from left to right The heating phase has been deleted when no blocks are left The deleting process will be terminated if you release the Time key prematurely or turn the rotary selector back In this case all switching points for the heating phase remain active Release Time to save your input The display shows the next switching point The new program that has been modified by the deletion is saved under Own program and the relevant heating circuit number here 2 You can
23. valves require an additional pump This pump enables the second heating circuit to be operated independently of the first heating circuit Buderus Logamatic 4211 Subject to technical modifications fa Tips on energy efficient heating 3 Tips on energy efficient heating Here are a few tips on how to heat economically without sacrificing convenience e Only heat if you need warmth Utilise the preset heating programs standard programs in the control unit or those that have been tailored to your individual requirements e Air rooms correctly during the heating season Open windows fully three to four times a day for approximately 5 minutes Having the window slightly open all the time does not provide an air change and wastes valuable energy e Close the thermostatic valves whilst ventilating Windows and doors are places where a lot of heat is lost Therefore check whether the doors and windows are correctly sealed Shut your roller shutters if installed at night O Never position large objects such as a sofa or a desk immediately in front of the radiators minimum clearance 50 cm Otherwise the heated air cannot circulate and heat the room adequately e In rooms you occupy during the day you can for example set a room temperature of 21 C whilst 17 C may be sufficient at night To achieve this use standard heating mode day mode and setback mode night mode gt Chapter 6 Never overheat rooms
24. 15 00 23 00 Part time work in the Sa 06 30 23 30 afternoon Su 07 00 22 00 Noon Mo Th 06 00 08 00 11 30 13 00 17 00 22 00 Fr 06 00 08 00 11 30 23 00 N h Sa 06 00 23 00 con athome Su 07 00 22 00 Mo Th 06 00 08 00 16 00 22 00 Single Fr 06 00 08 00 15 00 23 00 9 Sa 07 00 23 30 Su 08 00 22 00 Seniors Mo Su 05 30 22 00 You can enter your own individual program here New If none of the standard programs suit you you may alter them have them changed by your heating Own 1 contractor or enter a new heating program gt Chapter 8 2 This will be saved under Own and the number of the heating circuit Tab 1 Standard programs ON day mode OFF night mode Buderus Logamatic 4211 Subject to technical modifications 37 Extended functions 7 12 Modifying the standard program by moving switching points Time switch Program select Family 9 Family program Monday at 05 30 21 C gt If the switching points i e the times of a standard program at which the system changes over between day and night mode only partially suit you you may change them or ask your heating contractor to change them for you The modified standard program is saved under Own and the number of the heating circuit The heating program memory is available for this The following example shows how the switching poin
25. 25 C the or LED illuminates The factory setting for the day room temperature is 21 C The factory setting for the night room temperature is 17 C Any adjustment applies to all heating circuits assigned to the MEC2 programming unit gt Chapter 7 7 USER INFORMATION The set room temperature applies to the currently enabled heating mode i e day or night mode You can recognise the currently enabled heating mode because the green LED illuminates Q Set room 23 C Automatic day Buderus 20 6 4 1 For the current operating mode You are currently in automatic Day mode and would like to alter the room temperature Condition For this the programming unit flap must be closed Turn the rotary selector to the required day room temperature here 23 C The day room temperature is now adjusted to 23 C The selected permanent display will then appear again Logamatic 4211 Subject to technical modifications Standard functions 6 6 4 2 For the operating mode not currently enabled You may also adjust the room temperature for an operating mode that is not currently enabled For example you are currently in automatic Day mode and would like to alter the set night temperature Hold down Night mode and select the required night room temperature with the rotary selector here 16 C j Q Release Night mode key Set room The night setback temperature is n
26. 68 FM442 function module 67 H Heating circuit 0 4 30 31 Heating circuits assignment 76 Heating control unit 5 Heating DHW 22 Heating phase aaa a 55 Heating program 25 34 36 Holiday function oaoa aaa 44 Holiday mode a 46 Holidayprogram 44 l Instantaneous water heater 5 K KOYS ec E ee 14 L LEDS osos a e a a e wad BO ow 67 M Manual mode 18 19 Modules o e e 64 N Nightmode 4 9 18 O Operating mode Buderus Logamatic 4211 Subject to technical modifications 77 Buderus 78 Logamatic 4211 Subject to technical modifications Logamatic 4211 Subject to technical modifications Buderus 79 Buderus Cotswold Way Warndon Worcester WR4 9SW Customer service 0870 421 5933 Technical support 0870 421 5944 Fax 01905 753130 www buderus commercial co uk C F Quadrant Ltd Unit L40 Cherry Orchard Industrial Estate Cherry Orchard Dublin 10 Tel 01 6305700 Fax 01 6305706 01 6305715 www cfquadrant ie E mail sales cfquadrant ie In the UK and IE Buderus is a brand name of Bosch Thermotechnology Ltd Bosch Thermotechnik GmbH Sophienstrasse 30 32 D 35576 Wetzlar www buderus de info buderus de Buderus
27. Back to return to the permanent display 58 Logamatic 4211 Subject to technical modifications Additional programming options a 8 2 Creating a new heating program You may enter up to 42 switching points per week and heating circuit to create a new heating program A single switching point comprises three details Weekday time and temperature The newly created program will be saved under Own program and the relevant heating circuit number Example Monday Friday from 05 00 21 C from 21 00 17 C Saturday Sunday from 09 30 21 C from 23 30 17 C A 1 21 C 2 17 C 05 00 21 00 B 4 21 C 2 17 C 09 30 23 30 7 747 012 053 10 1RS Fig 20 New heating program A New heating program Own program 2 Monday Friday B Saturday Sunday Day mode 2 Night mode Buderus Logamatic 4211 Subject to technical modifications 59 EN Additional programming options New switch point New switch point Monday Friday at i Q New switch point Monday Friday at 05 00 ED O New switch point Monday Friday at 05 00 21 C Buderus CD e Select a heating circuit gt Chapter 7 6 Example Heating circ 2 e Select the standard program Program select new for this heating circuit gt Chapter 7 10 The di
28. FF switching point is saved Next switching point Continue to turn the rotary selector until the next switching point is displayed The next switching point Tuesday 05 30 appears Also change the following switching points to 06 30 and 23 00 The system will now heat from 06 30 to 23 00 Monday to Thursday Press Back to return to the permanent display USER INFORMATION Ela O You can change the weekday if you press Weekday instead of Time You can change the switching state ON OFF by pressing Display instead of Weekday or Time The operating mode determines the switching state ON day mode OFF night mode e Ensure that an stop point is associated with every start point The modified standard program is saved under Own and the number of the heating circuit Buderus Logamatic 4211 Subject to technical modifications 39 Extended functions 7 13 Setting the summer winter time adjustment Buderus In addition to the outside temperature your control unit considers the ability of the building to store heat and its thermal insulation creating from these the Adjusted outside temperature gt Fig 15 After a delay it automatically changes over between summer and winter mode C
29. be available after approximately 10 to 30 minutes With instantaneous water heaters or combination boilers DHW is available almost immediately Logamatic 4211 Subject to technical modifications 7 7 1 Extended functions Extended functions The extended functions are explained in this chapter You need the extended functions to be able to change the factory settings of your heating system You can use the following functions Display the current operating values of your heating system Set the time Set the date Set heating circuits Select a heating program Set the room temperature for additional heating circuits The keys for the extended functions are located behind the flap of the MEC2 programming unit Keys for extended functions 888 g ae Pre a N aN Va 9 8 7 747 012 073 01 1RS Fig 11 Keys for the extended functions 00 JO 0d RAON Enter the day of the week Enter holidays Select standard display Set the time Change temperature values Summer winter time adjustment Return to the standard display Select a time switch program Select heating circuits DHW circuit Buderus Logamatic 4211 Subject to technical modifications 25 Extended functions 7 2 Controlling the extended functions The extended functions provide access to a further control level At this level proceed according to the Push and tu
30. call up your new program by pressing Prog and turning the rotary selector gt Chapter 7 10 Press Back to return to the permanent display Logamatic 4211 Subject to technical modifications Additional programming options a 8 1 4 Connecting heating phases A heating phase consists of two switching points a start and a stop point To connect two consecutive heating phases place the stop point of the first heating phase onto the start point of the next phase Example Starting from the Midday program for heating circuit 2 you want to join the Monday heating phase from 11 30 to 13 00 to the heating phase 17 00 to 22 00 In other words you want to heat continually from 11 30 until 22 00 Your modified program will be saved under the program name Own and the number of the heating circuit A 1 2 06 00 08 00 11 30 13 00 17 00 22 00 B 1 gt 3 06 00 08 00 11 30 22 00 7747 012 053 11 1RS Fig 19 Connecting two heating phases A Midday program New program Own program 2 Day mode Night mode Turn from 13 00 to 17 00 on O e Select a heating circuit gt Chapter 7 6 Example Heating circ 2 e Select the standard program for the chosen heating circuit gt Chapter 7 10 here Midday program The first switching point start point Monday at 06 00 at
31. ction as described above and turn the rotary selector to 0 7 19 Setting the pause function oN Pause function 3 hours This function only applies to heating circuits to which the MEC2 has been assigned as a remote control unit MEC heat circ All heating circuits without an MEC2 continue to operate normally Enter the length of time the system should heat to the preset room temperature Example You are about to leave your home for three hours and would like to heat less whilst you are away Hold down Night mode and simultaneously open the flap of the MEC2 The pause function is enabled Continue to hold down Night mode and turn the rotary selector until the required number of hours is displayed here 3 The display shows the pause function together with the set number of hours Release Night mode key The pause function starts immediately After the set time has expired the heating system returns to automatic heating mode If you want to cancel the pause function call up pause function as described above and turn the rotary selector to 0 Buderus Logamatic 4211 Subject to technical modifications 47 Extended functions 7 20 Room temperature matching USER INFORMATION This function is only available if the MEC2 is fitted within the living space If the room temperature shown on the display varies from the actual temperature measured with a thermometer the display value can be adju
32. d by the CE designation You can view the Declaration of Conformity on the internet at www buderus de konfo or request a copy from your local Buderus sales office 4 4 Symbol key Two levels of danger are identified and signified by the following terms RISK TO LIFE Identifies possible risks associated with a product that might lead to serious injury or WARNING y j death if appropriate care is not taken RISK OF INJURY IN SYSTEM DAMAGE CAUTION Indicates a potentially dangerous situation which could lead to minor or moderately serious injuries or to damage to property USER INFORMATION User tips for the optimum utilisation and setting of the appliance plus useful information Satety E 4 5 Please observe these notes e Only operate the control unit as intended and if it is in perfect working order e Let your heating contractor instruct you thoroughly in the operation of this system e Read these operating instructions carefully e Only enter or change the operating values detailed in these instructions Other entries alter the control programs of the heating system and can lead to incorrect system functions Maintenance and repairs as well as troubleshooting should only be carried out by authorised and qualified personnel WARNING Never open the control unit RISK TO LIFE from electric shock e in an emergency switch off the control unit e g with the heating system emergency stop
33. e The DHW circulation pump is to run on all weekdays from 06 30 to 09 00 e Select a heating circuit gt Chapter 7 6 here DHW circulation e Selecta program for the heating circuit DHW circulation gt Chapter 7 10 here Program select new The display shows the blank screen New switch point for the new switching New switch point point at aos Enter the switching points gt Chapter 8 2 USER INFORMATION Only after all three details day time temperature have been defined for the new switching point will it be automatically saved under Own program CP and the heating circuit number DHW circulation The saving process is not shown on the display The display shows the blank screen New switch point for the next switching point Repeat this process for all required switching points Your DHW circulation pump will now operate according to your Own program CP You can call up your new Own program CP by pressing Prog and turning the rotary selector Buderus 63 Logamatic 4211 Subject to technical modifications Ea Modules and their functions 9 Modules and their functions All modules are shown here that are or can be fitted in your Logamatic 4211 control unit Logamatic 4211 MEC2 programming unit O CM431 controller module O ZM422 central module O Burner controller 1 heating circuit 1 DHW circuit FM441 function modu
34. e minute steps Set time Release Time to save your input 15 52 58 La Buderus Logamatic 4211 Subject to technical modifications 29 Extended functions 7 6 Selecting a heating circuit Heat circ sel Heating circ 2 Buderus Your heating system may be equipped with several heating circuits If you want to change a setting e g the heating program first select the heating circuit whose setting you want to change Subject to the equipment level of your heating system the following heating circuits can be selected MEC2 heating circuits all heating circuits assigned to the MEC2 gt Chapter 7 8 Heating circuit 0 8 DHW DHW circulation e Open flap Hold down Heating circuit and select the required heating circuit with the rotary selector here Heating circ 2 Release Heating circuit key The displayed heating circuit is now selected As soon as the heating circuit has been selected the display returns to the permanent display 30 Logamatic 4211 Subject to technical modifications Extended functions 7 7 Adjusting the room temperature for another heating circuit a JO Heat circ sel Heating circ 2 Actual room 19 5 C Outside temp 0 C Your heating system may
35. eating system is equipped with several heating circuits first select the correct heating circuit gt Chapter 7 6 Only then can you select the operating mode and room temperature USER INFORMATION The following MEC2 displays only describe the possible displays of the ZM422 module standard equipment level of the most frequently used FM442 module accessory Buderus Logamatic 4211 Subject to technical modifications 17 ea Standard functions 6 2 Permanent display Common flow Outside temp 45 C 21 C J Actual room gt 19 5 C Outside temp 0 C J Subject to the way your heating contractor has configured your system one or more MEC2 displays may not appear although the above modules are fitted in your control unit Detailed descriptions of MEC2 displays for other modules are included in the corresponding module documentation There are two different permanent displays Either one of the factory set permanent displays is shown subject to whether the MEC2 is fitted in the control unit or is installed as a wall mounted unit Factory set permanent display if the MEC2 is fitted in the control unit Factory set permanent display if the MEC2 is installed as a wall mounted unit 6 3 Selecting the operating mode Buderus 18 You can operate the MEC2 programming unit in two ways
36. ed the Logamatic telecontrol system enables the maintenance message to be transmitted automatically to your mobile PC or fax machine USER INFORMATION The automatic maintenance message remains active until it is reset by your heating contractor Buderus Logamatic 4211 Subject to technical modifications 49 En Additional programming options 8 Additional programming options This chapter is intended to provide more detailed information to those of our customers who would like to familiarise themselves further with the functions of their heating system The following pages will explain how to change a standard program if none of the preset standard programs gt Chapter 7 11 match your lifestyle You will learn how to create a new heating program which accurately matches your personal circumstances 8 1 Modifying the standard program by inserting deleting switching points 8 1 1 Inserting switching points A You can interrupt heating phases by inserting switching points details Weekday time temperature into an existing heating program Example The standard Family program provides constant heating on Fridays from 05 30 BED 09220 until 23 00 Insert two new switching points if for example you do not want to el No heat on Fridays from 10 00 to 13 00 O i Your modified program will be
37. ength of time your heating system takes to heat up individual rooms may vary This will be subject to the outside temperature the building insulation and the room temperature setback The Optimisation function of the programming unit calculates the various heat up times Ask your heating contractor whether this function has been enabled If so all you need to do is enter the times at which your home should be warm With the programming unit Buderus offers eight different preset heating programs as standard programs 05 30 22 00 7 747 012 053 16 1RS Fig 12 Example for a standard program here Family program from Monday to Thursday 1 Day mode 2 Night mode USER INFORMATION After commissioning check whether the selected heating program suits your lifestyle If not several options are available for matching the heating program to your individual requirements Buderus 34 Logamatic 4211 Subject to technical modifications Extended functions 7 9 2 Time switch program for DHW You may enter your own heating program for DHW heating This saves you energy Determine the time points so that DHW is only available when one heating circuit is in standard heating mode day mode In this case DHW is heated 30 minutes prior to the start of day mode of the first heating circuit so it is available at the selected time A 1 2 ho
38. er temperature Summer Winter Release Su Wi key to save your input Summer from 18 C Setting up constant summer mode e Select a heating circuit gt Chapter 7 6 Example Heating circ 2 Hold down Su Wi The display briefly shows the heating circuit Then turn the rotary selector to a changeover temperature below 10 C 5 Q The display shows Constant summer Summer Winter Release Su Wi key to save your input Your heating system will constantly operate in summer mode a Constant summer Setting up constant winter mode e Selecta heating circuit gt Chapter 7 6 Example Heating circ 2 Hold down Su Wi The display briefly shows the heating circuit Then turn the rotary selector to a changeover temperature above 30 C 5 Q The display shows Constant winter Summer Winter Release Su Wi key to save your input Your heating system will constantly operate in winter mode Constant winter Nan Buderus Logamatic 4211 Subject to technical modifications 41 Extended functions 7 14 Setting the DHW operating mode Heat circ sel DHW Actual room 19 5 C Outside temp 0 C Buderus This allows you to change the DHW temperature in the DHW cylinder e Open flap Hold down Heating circ and select DHW with the rotary selector Release Heating circuit k
39. ess AUT to continue the interrupted holiday function Interrupting the holiday function Press Night mode The display shows Constant night You may interrupt the holiday function at any time by pressing Night mode In this case the system heats according to the set night temperature gt Chapter 6 4 Continuing the holiday function Press AUT to continue the interrupted holiday function 46 Logamatic 4211 Subject to technical modifications Extended functions 7 18 Setting the party function Q Party function Lae 4 hours This function only applies to heating circuits to which the MEC2 has been assigned as a remote control unit MEC heat circ All heating circuits without an MEC2 continue to operate normally Enter the length of time the system should only heat to the preset room temperature Example You have a party and want to heat for the next four hours to the preset room temperature Hold down Day mode and simultaneously open the flap of the MEC2 Party function is enabled Hold Day mode down and turn the rotary selector until the required number of hours is displayed here 4 The display shows the party function together with the set number of hours Release Day mode key The party function starts immediately After the set time has expired the heating system returns to automatic heating mode If you want to cancel the party function call up party fun
40. ey The permanent display will then appear again Select one of the following operating modes for DHW Const operation The water inside the DHW cylinder is constantly maintained at the set temperature Press Day mode to select constant operation After approximately three seconds the permanent display will appear again Automatic 30 minutes before the first heating circuit is started the boiler heats the DHW cylinder to the set temperature and stops when the last heating circuit is switched off factory setting Alternatively you can enter your own DHW program gt Chapter 8 3 Press Automatic to select automatic mode After approximately three seconds the permanent display will appear again DHW OFF DHW heating is switched off By pressing DHW you will switch heating on for the duration of DHW heating once Press Night mode to stop DHW heating After approximately three seconds the permanent display will appear again 42 Logamatic 4211 Subject to technical modifications Extended functions 7 15 Setting the operating mode for DHW circulation Heat circ sel DHW circulation Actual room Outside temp 19 5 C 0 C The DHW circulation pump provides an almost instantaneous supply of DHW to the draw off points For this the DHW is circulated by a separate DHW circ
41. finitely increased using amp and infinitely reduced using W AUT The burner operates in automatic mode O The burner is switched OFF Except when the burner emergency switch is set to w max l ll The burner operates continuously at maximum output Heating circuit and DHW function i Heating circuit and DHW switch O USER INFORMATION In standard mode the switch should be set to AUT The positions 0 and manual are special settings reserved for heating contractors only Y Heating circuit O or boiler pump and cylinder primary pump are switched on AUT Heating circuit O or boiler circuit and DHW circuit operate in automatic mode O Only heating circuit O or boiler pump cylinder primary pump and DHW circulation pump are switched off The control functions continue to operate Flue gas test explanation gt chapter 10 Current functions are indicated by LEDs Buderus 66 Logamatic 4211 Subject to technical modifications 9 2 FM442 function module accessory The FM442 module regulates two independent heating circuits with mixer Several of these modules can be used in one control unit The switches on the module only have service and maintenance functions and only affect 230 V outputs If the switches are not set to automatic a corresponding message appears on the MEC2 programming unit and fault indicator illuminates USER INFORMATION Never use the switches to shut
42. h a temperature in excess of 60 C This creates a risk of scalding at the draw off points e Only draw off mixed hot and cold water during or just after a flue gas test Note that when mono lever mixer taps are in their usual position the water drawn may be too hot Never draw off hot water only when using twin lever mixer taps USER INFORMATION Observe the relevant national requirements regarding limiting the flue gas losses of your heating system e Arrange an annual flue gas test The flue gas test is started at the boiler gt see technical boiler documentation 7 747 012 038 02 1RS Fig 23 ZM422 1 Buderus 68 ZM422 module Flue g test act Boiler temp 75 C Flue gas test key on ZM422 module The control unit must be switched on e Hold down Flue gas test for several seconds to start the flue gas test The flue gas test lasts 30 minutes and is indicated on the display During the flue gas test the displays for faults and for summer mode will flash alternately The control unit automatically reverts to its previous operating mode when the test has been completed e Press Flue gas test again to terminate the flue gas test During the flue gas test the MEC2 will show the display on the left Logamatic 4211 Subject to technical modifications 11 Troubleshooting
43. ications 43 Extended functions 7 16 Setting the holiday function Using the holiday function you can heat at a lower room temperature if you are away for a prolonged period Example If you are on holiday for the next five days and want to heat less during that time e g heating circ 2 with a reduced room temperature of 12 C USER NOTE As the holiday function is enabled immediately after completing your entry you should only enter this function on the day of your departure Holiday days Set room Holiday days Set room e Select a heating circuit gt Chapter 7 6 Example Heating circ 2 Enter holiday function Hold Holiday down and select the required number of days with the rotary selector here 5 The display shows 5 Release Holiday key to save your input USER INFORMATION The Set room display only appears if the Hold room temp holiday reduction type or Reduced has been set by the heating contractor Buderus Hold Temp down and select the required temperature with the rotary selector here 12 C The display shows 12 C Release Temp key to save your input The holiday function is enabled immediately after entry 44 Logamatic 4211 Subject to technical modifications Extended functions You can cancel the holiday function any
44. ify your heating contractor who will guarantee a professional service It is helpful for your heating contractor if you can provide precise details about the fault Buderus Logamatic 4211 Subject to technical modifications 75 13 Setup report 13 Setup report Operating values Input range Factory settings Setting Family Early morning Late evening Morning Program selection Afternoon Family Noon Single Seniors New DHW 30 C 60 C 60 C Summer winter time os adjustment constant summer 17 C constant winter Day room temperature 11 C 30 C 21 C Night room temperature 2 C 29 C 17 C Holiday room temperature 10 C 30 C 17 C thermal disinfection Yes No No Assignment of heating circuits As part of the commissioning process your heating contractor will assign the individual heating circuits of your heating system e g heating circuit 1 I h side of ground floor Heating circ Allocation Heating circ Heating circ Heating circ Heating circ B O N O Heating circ Buderus 76 Logamatic 4211 Subject to technical modifications 14 Keyword index Keyword index 14 A automatic o oo a a 19 Adjusted outside temperature 40 TN AAA UA 19 Automatic o 49 manuell oo sp eh pe a a 18 19 Automatic mode 18 19 Moca e mesa dba E dos 19 B Operating values
45. ing If no fault messages are displayed on the control unit in spite of cool rooms or cool DHW there may be an incorrect setting Observation Possible cause s Measure ON OFF switch set to OFF ON OFF switch set to ON No power supply Control unit remains dark or does se Malis alenga not function i Heating system emergency stop switch set to ON MEC2 display dark MEC2 incorrectly plugged in contact Fit MEC2 correctly problems Actual room temperature for the Check the heating circuit corresponding heating circuit is assignment incorrectly displayed Control unit operates in setback mode Check time and heating program and modify if required Set room temperature too low Correct set room Room cool temperature DHW supply runs too long Check DHW heating Heat sources deliver insufficient heating Check heat source energy or are shut down Room temperature sensor is incorrectly Sensor adjustment adjusted DHW is set to the wrong temperature Correct the DHW temperature setting DHW cool Switching program is incorrectly set up Re program the switching program DHW cool External heat sources supply insufficient Check heat source if DHW is heated by external heat heating energy source Tab 3 Simple troubleshooting Buderus 70 Logamatic 4211 S
46. ing rooms will become too cold With this kind of control you always need to keep all thermostatic radiator valves in the reference room fully open Buderus Weather compensated control with room temperature hook up Weather compensated control with room temperature hook up combines the advantages of the other two control modes The required flow temperature which is mainly subject to the outside temperature can be adjusted by the room temperature only to a limited degree This achieves improved maintenance of the room temperature within the room containing the programming unit without completely ignoring the other rooms With this kind of control you will also need to keep all thermostatic radiator valves in the reference room fully open Why do the thermostatic valves have to stay fully open If for example you want to reduce the room temperature in the reference room and you therefore close the thermostatic valve further the flow rate through the radiator is reduced and therefore less heat is transferred to the room This reduces the room temperature The control unit will endeavour to counteract the drop in room temperature by raising the flow temperature However raising the flow temperature does not raise the room temperature as the thermostatic valve continues to limit the room temperature An excessive flow temperature results in unnecessary heat losses from the boiler and pipework At the same time the tempe
47. ins supply with the emergency stop switch upstream of the boiler room or by removing the main fuse Buderus m 7 747 012 038 04 1RS Fig 8 ON OFF switch 1 ON OFF switch 2 Switch on the module 16 Logamatic 4211 Subject to technical modifications Standard functions 6 6 Standard functions 6 1 Simple operation gt 3 O lo 2206 O o 0 00 A 20 0009 Set room op 21 C Constant day In this chapter you will find information about the standard functions of the MEC2 programming unit and their use The standard functions are Selecting the operating mode Setting the room temperature Setting the DHW temperature Heating DHW once The standard functions are controlled by pressing one of the keys on the Standard function keypad or by turning the rotary selector Example Adjusting the room temperature for day mode Press Day mode to select the standard heating mode day mode The LED of the Day mode key illuminates day mode is enabled Set the required room temperature by turning the rotary selector Condition For this the programming unit flap must be closed The display shows the set value USER INFORMATION If your h
48. its heat The heating water flows back to the boiler via the return line 7 where the cycle starts again The room temperature can be adjusted to your personal requirements using the thermostatic radiator valves 5 All radiators are supplied with the same flow temperature The heat transferred to the room depends on the radiator surface and the heating water throughput Therefore the heat transfer can be manipulated via the thermostatic radiator valves What determines the heat demand of a room The heat demand of a room largely depends on the following factors Outside temperature Required room temperature Type of construction insulation of the building Wind chill factor Solar radiant energy Internal heat sources open fireplace occupants lamps etc Closed or open windows Take these factors into consideration to achieve a comfortable room temperature Buderus Fig 1 Boiler Pump Flow Radia N Oo 0 ON Pumped central heating design Burner ine Thermostatic radiator valves tors Return line Fig 2 Influences on the room climate Logamatic 4211 Subject to technical modifications What you should know about your heating system 2 Why do you need a heating control unit The heating control unit ensures convenien
49. le 1 heating circuit 1 DHW circuit FM442 function module x 2 heating circuits Module FM443 function module x Solar circuit FM444 function module x Alternative heat source FM445 function module xX LAP LSP primary system FM446 function module x EIB interface FM448 function module x Central fault message FM426 auxiliary module x Aux high limit safety cut out STB FM458 function module Strategy module Tab 2 Standard equipment level and optional modules O Standard equipment level X Accessory Combination installation not possible Along with the ZM422 central module which is part of the standard equipment level of the Logamatic 4211 control unit the FM442 will be described on the following pages Buderus 64 The MEC2 preset menus in these operating instructions relate to these modules All other modules are explained in separate technical module documentation Logamatic 4211 Subject to technical modifications Modules and their functions EA 9 1 ZM422 central module standard equipment level The ZM422 module is part of the basic equipment of the Logamatic 4211 control unit The switches on the module are only provided for service and maintenance functions If the switches are not set to automatic a corresponding message appears on the MEC2 programming unit and fault indicator illuminates USER INFORMATION Never use the switches to shut down the heating system d
50. om temperature fluctuations through solar radiant energy occupants open fireplaces or similar external heat sources are then ignored If you utilise this type of control adjust the thermostatic radiator valves so that the required room temperature is achieved in the different rooms Room temperature dependent control Another possible heating control method is room temperature dependent control The control unit calculates the flow temperature based on the set and actual room temperatures To be able to utilise room temperature dependent control you need a room that is representative of your whole home All factors influencing the temperature in this reference room where the programming unit is located will also apply to all other rooms Not every home has a room that meets these requirements Pure room temperature dependent control has in such cases certain limitations Should you for example open a window in the room where the room temperature is measured the control unit will think that you have opened the windows in every room in your house and will begin to heat vigorously Or the reverse might apply You measure the temperature in a south facing room with different heat sources solar or other heat sources e g an open fireplace Now the control unit thinks that it is as hot in every room as in the reference room consequently the boiler output will be severely reduced so that for example the north fac
51. ometers around Frankfurt Main Germany In case of reception problems please observe the following The radio reception is weaker in rooms surrounded by steel reinforced walls cellars high rise buildings etc The distance from sources of interference such as computer monitors and TV sets should be at least 1 5 m The radio reception tends to be better at night than during the day You can manually adjust the date and time on the MEC2 if the radio clock signal is not available in your area USER INFORMATION Well screened boiler rooms may impede the reception of the radio signal If the radio clock signal reception is impaired or non existent retain the automatic factory setting according to calendar for summer winter time adjustment Logamatic 4211 Subject to technical modifications Extended functions Setting the date Hold Weekday down and select the required date with the rotary selector here 20 i Q The name of the day automatically changes here Monday if you set the date Set date for the day using the rotary selector here 20 20 08 2001 Release Weekday to save your input Monday Press Weekday again to re enter the month Press Weekday again to enter the year The item flashing can be modified with the rotary selector Setting the time Hold down Time and select the required time with the rotary selector j Q The time is set in on
52. oom temperature is now adjusted to 21 C The selected permanent display will then appear again USER INFORMATION If you want to adjust the temperature for an operating mode that is not the current mode first select the corresponding operating mode e g with the Night mode key After modifying the temperature reset the operating mode to the previous setting USER INFORMATION For heating circuits with individual remote control units e g BFU you can adjust the room temperature only via this remote control gt see the instructions for that remote control unit 32 Logamatic 4211 Subject to technical modifications Extended functions 7 8 Heating circuits with MEC2 programming unit Setting Not possible MEC heat circ select Time switch Not possible Single heat circ select During installation your heating contractor will determine which heating circuits are to be controlled by the MEC2 programming unit These heating circuits will be designated MEC heat circ MEC heat circ The following adjustments made at the MEC2 apply all to MEC heat circ simultaneously Setting the room temperature Setting the summer winter time adjustment Selecting the operating mode Setting the holiday function Setting the party or pause function If you have selected an individual heating circuit that is assigned to the MEC2 and you want to make one of the above adjus
53. ow adjusted to 16 C The selected 16 C permanent display will then appear again Constant night Press AUT The AUT LED illuminates automatic mode is re enabled USER INFORMATION eJ E If you are currently in automatic Night mode and you wish to adjust the day mode proceed as described above but instead hold down the Day mode key Buderus Logamatic 4211 Subject to technical modifications 21 ea Standard functions 6 5 Heating DHW Buderus The programming unit also offers you the option of heating DHW in an energy conscious manner For this purpose DHW heating can be selected via a time switch You can select between the set values for DHW and OFF to stop DHW heating To save energy DHW heating will be stopped outside the programmed times i e DHW is not heated in night mode DHW heating is factory set to 60 C in automatic mode 60 C 05 30 09 00 18 00 21 00 7 747 012 053 17 1RS Fig 10 Example DHW heating 1 Day mode 2 Night mode 3 OFF We recommend heating the DHW cylinder once in the morning before central heating begins and reheating once in the evening if necessary see gt Fig 10 USER INFORMATION The DHW temperature will have fallen below the set value if the green DHW LED illuminates 22 Logamatic 4211 Subject to technical modifications 6 5
54. rature Rotary selector The rotary selector gt Fig 6 5 is used to set new values and scroll through the menus Keys You control the functions via the keys and the relevant indications appear on the display If you push a key and hold it down you can change a value using the rotary selector The new value will be accepted and saved after you release the key You can reach certain functions such as day room temperature night room temperature and possibly the DHW temperature or automatic heating mode directly via the corresponding keys gt Fig 6 1 to 3 and 6 Behind a flap gt Fig 6 7 further keys are available for additional settings e g for the entry of weekdays or setting the time The unit automatically returns to the standard display if no entry is detected for some time Buderus i do 99 o o abd LE O gt 3 o Foo A o lo N WwW lt A A mal f Fig 6 MEC2 programming unit N Oo oO Ff WO ND Constant setback mode Automatic heating mode in acc with a time switch Constant heating mode Display Rotary selector Enter DHW temperature reheating Flap for the keypad of control level 2 14 Logamatic 4211 Subject to technical modifications MEC2 programming unit Controls and MEC2 programming unit ey a
55. rature in all rooms without thermostatic valves increases due to the higher boiler water temperature Logamatic 4211 Subject to technical modifications Why do need a time switch Advanced heating systems are equipped with a time switch to save energy With a time switch you can set up an automatic changeover between two different room temperatures subject to time This enables you to set a reduced room temperature at night or other times when a reduced temperature is sufficient whilst operating your heating system with the standard room temperature during the day You have four options for reducing the room temperature via the control unit Upon request your heating contractor will select and set up one of these options Total shutdown no room temperature regulation Reduced room temperature a reduced room temperature will be regulated Change between total shutdown and reduced heating subject to room temperature Change between total shutdown and reduced heating subject to outside temperature With total shutdown of the heating system no pumps or other system components are controlled Heating only recommences if the heating system is subject to a risk of frost Heating with reduced room temperature night mode only differs from standard heating mode day mode through a lower flow temperature When changing from total shutdown to reduced heating total shutdown is activated subject to room
56. rn principle The control procedure is always similar e Open flap Hold the required key down e g the Time key and simultaneously turn the rotary selector By turning the rotary selector you modify the values that flash on the display Release key Modified values are saved Back key Exit menu 7 3 Displaying operating values Heating circ 0 Set room Buderus You can display and control the various operating values of the boiler the selected heating circuit and the system Only the operating values of the selected heating circuit e g heating circuit 0 are displayed gt Chapter 7 6 e Open flap Turn the rotary selector clockwise without pressing any other key Subject to the modules various of the following operating displays can be called up Burner and Hours run Actual heating circuit room temperature Set heating circuit room temperature Heating circuit operating state Actual heating circuit flow temperature Actual DHW temperature Set DHW temperature DHW operating mode Operating state DHW circulation pump and cylinder primary pump Only if a DHW module has been installed 26 Logamatic 4211 Subject to technical modifications Extended functions 7 4 Changing the permanent display
57. s 3 Ea Introduction 1 Introduction With your purchase of this Logamatic control unit you have acquired a product that promises you easy control over your heating system It offers you optimum heating convenience and minimum energy consumption The control unit enables you to operate your heating system to be able to combine your economical and ecological aspirations Of course your personal comfort is always priority The control unit which is regulated by the MEC2 programming unit is set up at the factory for immediate use Naturally you or your heating contractor can modify these default settings and adapt them to your individual requirements The MEC2 programming unit is the central control unit Some functions which you may need are located behind a flap The keys behind this flap enable you to make various adjustments The control concept is Push and turn This control unit speaks your language Your heating system offers a wealth of other useful functions Some examples of these are Automatic summer winter time adjustment Party pause function Holiday function DHW heating at the touch of a button Buderus Logamatic 4211 Subject to technical modifications What you should know about your heating system E 2 What you should know about your heating system Why should you become more familiar with your heating system Modern heating systems offer many functions for saving energy witho
58. saved under the program name Own and the y es number of the heating circuit ED A 1 2 05 30 23 00 B 1 2 05 30 10 00 13 00 23 00 7 747 012 053 14 1RS Fig 16 Inserting switching points to interrupt a heating phase A Family program B New program Own program 2 1 Day mode 2 Night mode Buderus 50 Logamatic 4211 Subject to technical modifications Additional programming options a e Select a heating circuit gt Chapter 7 6 Example Heating circ 2 e Select the standard program for the chosen heating circuit gt Chapter 7 10 here Program select Family Release Prog key to enable the selected standard program here Family program The display shows the selected standard program Family program Monday at 05 30 21 C Turn the rotary selector once anti clockwise until New switch point is displayed Q The display shows the blank screen New switch point for the new switching New switch point point at A Y Hold down Weekday and turn the rotary selector to the required day here Friday E O You can select days individually or in blocks New switch point Monday Thursday Friday Monday Friday at none AY l Saturday Sunday Monday Sunday Release Weekday to save your input Hold Time down and select the required time with the rotary selector here 10 00 Q Friday at 10
59. se of the control unit packaging in an environmentally responsible manner e The lithium battery in the CM431 module may only be replaced by your heating contractor Buderus 12 Logamatic 4211 Subject to technical modifications Controls and MEC2 programming unit ey 5 Controls and MEC2 programming unit 5 1 Control unit controls 7 747 012 039 01 2RS Fig 4 Logamatic 4211 control unit controls delivered condition 1 High limit safety cut out 4 Connection for external service equipment and MEC2 2 Boiler water thermostat 5 Burner emergency operation switch 3 Fuse F1 6 ON OFF switch 1 A B 2 7 747 012 038 03 1RS Fig 5 Fitted modules 1 Slot 1 e g FM442 heating circuit 1 heating circuit 2 A Slot A ZM422 heating circuit O boiler DHW B Slot B MEC2 CM431 MEC2 programming unit 2 Slot 2 e g FM442 heating circuit 3 heating circuit 4 Buderus Logamatic 4211 Subject to technical modifications 13 EN Controls and MEC2 programming unit 5 2 MEC2 programming unit The MEC2 programming unit is the central element with which you operate your Logamatic 4211 control unit Display The display gt Fig 6 4 indicates functions and operating values e g the actual room tempe
60. splay shows the blank screen New switch point Enter the first switching point Monday Friday 05 00 21 C You can select days individually or in blocks Monday Thursday Monday Friday Saturday Sunday Monday Sunday Hold down Weekday and select the required day or block with the rotary selector here Monday Friday Release Weekday to save your input Hold Time down and select the required time with the rotary selector here 05 00 The display shows the new switching point Release Time to save your input Hold Temp down and select the required temperature with the rotary selector here 21 C You cannot freely enter any temperature here Only the factory set day and night temperatures are available which you can however modify yourself gt Chapter 6 4 Release Temp key to save your input 60 Logamatic 4211 Subject to technical modifications Additional programming options a Only after all three details day time temperature have been set for the new switching point will it be automatically saved under Own program and the heating circuit number here 2 The saving process is not shown on the dd display The display shows the blank screen New switch point for the next at en switching point New switch point e Enter the second switching point Monday Friday 21 00 17 C e Enter the third switching point Saturday Sunda
61. sted using Calibration MEC CD Calibration MEC Room temperature Correction CD Calibration MEC Room temperature Correction 0 5 C Buderus gt The factory setting is 0 C The possible correction range is between 5 C and 5 C Example Displayed room temperature 22 C actual room temperature 22 5 C e Open flap Simultaneously press and then release Display and Temp The display shows Calibration MEC Hold down Temp and turn the rotary selector to the required value here 0 5 C The display shows the set value Release Temp key to save your input Press Back to return to the permanent display The display shows the corrected temperature 22 5 C 48 Logamatic 4211 Subject to technical modifications Note maint message O maint after Date required p maint after Hours run required a J Extended functions 7 21 Automatic maintenance message If your heating contractor has with your agreement enabled the automatic maintenance message the maintenance message Note maint message is displayed at a predetermined time on a particular date or after so many hours run e Open flap Turn the rotary selector You will see either maint after Date required or maint after Hours run required e Notify your heating contractor to schedule the inspection and maintenance work Where fitt
62. t a heating circuit gt Chapter 7 6 gx Hold down PROG Initially the heating circuit is displayed for which you want 0 to select a standard program Approximately 2 seconds later the designation of the currently selected standard program will appear Select the required standard program with the rotary selector here Seniors Release PROG key The displayed program is now selected Time switch Program select Seniors J gt The display shows the program designation and the first switching point for the Senior program selected heating program here Senior program Monday at 05 30 21 C O Press Back to return to the permanent display USER INFORMATION a Switching programs are only effective in automatic mode gt Chapter 6 3 1 Buderus 36 Logamatic 4211 Subject to technical modifications 7 11 Summary of standard programs Program designation Weekday ON OFF ON OFF ON OFF Mo Th 05 30 22 00 F l 1 ci Fr 05 30 23 00 i Sa 06 30 23 30 factory setting Su 07 00 22 00 Mo Th 04 30 22 00 E n O Fr 04 30 23 00 Early shif Sa 06 30 23 30 anly sait Su 07 00 22 00 Late evening Mo Fr 06 30 23 00 Sa 06 30 23 30 Late shift Su 07 00 23 00 Morning Mo Th 05 30 08 30 12 00 22 00 Fr 05 30 08 30 12 00 23 00 Part time work in the Sa 06 30 23 30 morning Su 07 00 22 00 Afternoon Mo Th 06 00 11 30 16 00 22 00 Fr 06 00 11 30
63. t heat and economical consumption of fuel and electrical energy It starts the heat source boiler and burner and pumps when warm rooms or DHW are required In doing so it utilises the components of your heating system at the correct time Furthermore your heating control unit records different variables that influence the room temperature and compensates for these What does the control unit calculate C Advanced control units calculate the temperature Pc 80 required within the boiler the so called flow temperature subject to the outside temperature The l 70 relationship between the outside temperature and the flow temperature is described as the heating curve 60 The lower the outside temperature the higher the flow temperature must be y 50 The control unit can operate in three control modes p Weather compensated control Room temperature dependent control 38 Weather compensated control with room 20 550 415 110 45 40 5 40 15 temperature hook up o Xx C 7 747 012 073 03 1RS Fig 3 Heating circuit curve example x Outside temperature y Flow temperature Buderus Logamatic 4211 Subject to technical modifications 7 2 What you should know about your heating system Weather compensated control With weather compensated control only the outside temperature captured by the outside temperature sensor is decisive for the flow temperature level Ro
64. temperature when the actual room temperature exceeds the set room temperature This function is only possible if a room temperature is being monitored When changing from total shutdown to reduced heating total shutdown is activated subject to outside temperature when the actual outside temperature exceeds the set outside temperature What you should know about your heating system 24 What are heating circuits A heating circuit describes the circuit taken by the heating water from the boiler via the radiators and back again gt Fig 1 page 6 A simple heating circuit comprises a heat source a flow line a radiator and a return line A pump installed in the flow line circulates the heating water Several heating circuits may be connected to one boiler for example one heating circuit for supplying radiators and a further circuit for supplying an underfloor heating system In this case the radiators are supplied at a higher flow temperature than the underfloor heating system The supply of different flow temperatures to different heating circuits can be achieved by e g installing a three way valve between the boiler and the underfloor heating system Using an additional temperature sensor in the flow of the heating circuit to be supplied sufficient cold return water is mixed via a three way valve into the hot flow water to achieve the required lower temperature It is important to note that heating circuits with three way
65. time by calling it up as described above and by setting the number of holiday days to 0 USER INFORMATION a DHW heating and DHW circulation will be switched off automatically if DHW is heated subject to the heating circuits Program select by heat circs gt Chapter 8 3 and all heating circuits are set to holiday mode You cannot enter a separate DHW holiday function USER INFORMATION A separate DHW holiday function can be entered if DHW is produced according to a separate time program Program select own DHW gt Chapter 8 3 The DHW circulation pump is switched off automatically during the DHW holiday function Buderus Logamatic 4211 Subject to technical modifications 45 Extended functions 7 17 Interrupting and continuing the holiday function Set room 21 C Constant day Set room 17 C Constant night Buderus You may interrupt your holiday program at any time and provide heat according to the set day and night temperatures Only the AUT LED illuminates if a heating circuit is in holiday mode Interrupting the holiday function Press Day mode The display shows Constant day You may interrupt the holiday function any time by pressing Day mode In this case the system heats according to the set room temperature gt Chapter 6 4 Continuing the holiday function Pr
66. tments the fault message Setting Not possible MEC heat circ select will appear Select MEC heat circ to program these settings gt Chapter 7 6 Individual heating circuits The following adjustments can only be implemented for each individual heating circuit separately Selecting the standard program Modifying the standard program by moving switching points Inserting or deleting switching points Deleting or connecting heating phases Creating a heating DHW or DHW circulation pump program If you have selected MEC heat circ and you want to make one of the above adjustments the fault message Time switch Not possible Single heat circ select will appear Enter these settings for each heating circuit separately gt Chapter 7 6 Buderus Logamatic 4211 Subject to technical modifications 33 Extended functions 7 9 Selecting and modifying a heating program 7 9 1 What is a heating program A heating program provides automatic changeover between operating modes day and night mode at fixed times This automatic changeover is effected via a time switch Before you utilise this option consider the following At what time in the morning should your home be warm Is this time also subject to the day of the week Are there days when you don t want to heat From what time in the evening do you no longer need to heat This may also depend on the day of the week The l
67. ts of the standard program Family can be changed for the days Monday to Thursday A 1 2 05 30 22 00 B 1 2 05 30 06 30 22 00 23 00 i Buderus O 7 747 012 053 15 1RS Fig 14 Changing the switching points from 05 30 to 06 30 and from 22 00 to 23 00 example Family program New program Own program 2 Day mode N U gt Night mode e Open flap e Select a heating circuit here Heating circ 2 gt Chapter 7 6 Hold down PROG and select the required standard program with the rotary selector Release PROG key The first switching point Monday 05 30 appears Hold down Time and select the required time with the rotary selector Example 06 30 38 Logamatic 4211 Subject to technical modifications Extended functions Release Time key The newly adjusted time for the ON switching point is now saved The modified switching point will be saved under the Own program and the Own program 2 number of the heating circuit here 2 Monday at 06 30 21 C Continue to turn the rotary selector until the next switching point that you want to change is displayed The OFF switching point for Monday appears Now you can modify the time for the OFF switching point Hold down Time and select the required time with the rotary selector Example 23 00 OO Release Time key The newly adjusted time for the O
68. ubject to technical modifications 11 2 Troubleshooting Troubleshooting fa Fault Effect Remedy Central heating stays Reset the burner as described in the boiler or burner Burner fault i cold documentation Central heating sometimes stays cold Boiler remains cold Check whether the thermostat is set to AUT Check whether fuel is available If this does not work Set burner emergency switch on the control unit to manual mode Setthe burner switch on the ZM422 module to max l Il and set the boiler water temperature using the thermostat Notify your heating contractor DHW sometimes stays too cold DHW temperature not rising Check whether the thermostat is set to AUT If this does not work Set the DHW and heating circuit switch on the ZM422 module to manual Notify your heating contractor Central heating stays cold Safety chain has responded Check whether the boiler is completely filled with water 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 below If this does not work Notify your heating contractor The control unit works with the last values set on the remote control Remote control fault Notify your heating contractor Boiler sensor fa
69. ulation pump twice per hour for three minutes Your heating contractor can match this interval to requirements at the service level You can modify the operating mode of DHW circulation as follows e Open flap Hold down Heating circ and select DHW circulation with the rotary selector Release Heating circuit key The permanent display will then appear again Select one of the following operating modes for the DHW circulation pump Const operation The DHW circulation pump will operate at the set interval e independently of the heating circuits Press Day mode to select constant operation After approximately three seconds the permanent display will appear again Automatic 30 minutes before the first heating circuit is started the DHW circulation pump starts to run at the set interval and stops when the last heating circuit is switched off factory setting Alternatively you can enter your own DHW circulation pump program gt Chapter 8 4 Press Automatic to select automatic mode After approximately three seconds the permanent display will appear again DHW circ OFF The DHW circulation pump will not be controlled Pressing DHW switches the DHW circulation pump on for the duration of heating DHW once Press Night mode to switch off DHW circulation After approximately three seconds the permanent display will appear again Buderus Logamatic 4211 Subject to technical modif
70. ult The heating system may heat with higher temperatures to safeguard the heat supply Outside temperature sensor fault Flow sensor fault Consult your heating contractor Tell your heating contractor which temperature sensor is faulty Ifthe DHW sensor is faulty water is not heated for safety reasons DHW sensor fault Notify your heating contractor Tab 4 Troubleshooting Buderus Logamatic 4211 Subject to technical modifications 71 Ea Troubleshooting Fault Effect Remedy Heating circuit X in manual mode DHW in manual mode Burner in manual mode Depending on switch positions pumps servomotors actuators etc will be operated manually The control functions continue to operate in manual mode but have no effect on the system The switches were set to manual for maintenance purposes or to remedy a fault Return the switches to AUT when the fault has been remedied Tab 4 Troubleshooting Buderus 72 Logamatic 4211 Subject to technical modifications 12 Operation in the event of a fault RISK TO LIFE from electric shock WARNING Never open the control unit e in an emergency switch off the control unit e g with the heating system emergency stop switch or isolate the heating system from the mains supply by removing the main fuse e Arrange for your heating contractor to
71. uring temporary absence Use the holiday function for this purpose gt chapter 7 16 The control functions remain operational in manual mode Burner function AUT 1 a Switch for burner Oz USER INFORMATION FI In standard mode the switch should be set to AUT Positions 0 manual and max I Il are special settings reserved for heating contractors The burner may be directly controlled with the switch Fig 21 ZM422 Display General fault e g on site faults sensor faults external faults wiring faults internal module faults manual mode These fault messages appear as plain text on the MEC2 programming unit LEDs for burner functions Display gt Burner fault Display gt Burner operational Display A Modulation output is increased 2 Stage operational Display y Modulating output is lowered ircuit 0 and DHW functions o LEDs for heating Display Boiler circuit O in summer mode Display N Heating circuit O or boiler pump operational Display AL Cylinder primary pump operational Display z DHW circulation pump enabled Buderus Logamatic 4211 Subject to technical modifications 65 NN Modules and their functions Y As the base load only the first stage will be enabled for single and two stage burners The second stage is at zero volts The burner servomotor cannot be reversed For modulating burners the burner output can be in
72. ut sacrificing comfort Getting to know this heating technology may appear daunting at first but after a short while you will recognise the advantages you can gain from a heating system that is set up to meet your personal requirements The more you are aware of the options offered by your heating system the greater the benefit you will be able to draw from it How does your heating system work Your heating system comprises the boiler with burner heating control unit pipework and radiators A DHW cylinder or an instantaneous water heater heats the water required for a shower bath or washing your hands Subject to the way your heating system has been installed it can operate either purely as a central heating system or together with a DHW cylinder The important thing is that the various components match each other The burner combusts fuel e g gas or oil and heats the water inside the boiler Using pumps this hot water is transported through the pipework to the consumers radiators underfloor heating system etc Buderus Logamatic 4211 Subject to technical modifications 2 What you should know about your heating system Fig 1 shows the heating circuit of a pumped central heating system The burner 2 heats the water inside the boiler 1 This heating water is transported by the pump 3 through the flow line 4 to the radiators 6 The heating water flows through the radiators and in doing so gives off some of
73. w switch point for the new switching point e Enter the switching points gt Chapter 8 2 USER INFORMATION Only after all three details day time temperature have been defined for the new switching point will it be automatically saved under Own program DHW and the heating circuit selection DHW The saving process is not shown on the display The display shows the blank screen New switch point for the next switching point Repeat this process for all required switching points DHW heating will now operate according to your Own program DHW You can call up your new Own program DHW by pressing Prog and turning the rotary selector gt Chapter 7 6 62 Logamatic 4211 Subject to technical modifications Additional programming options a 8 4 Creating a new DHW circulation pump program You can operate the DHW circulation pump either according to the factory settings Program select by heat circs or according to your own new switching program Program select own CP USER INFORMATION With the factory setting Program select by heat circs the DHW circulation pump will automatically start 30 minutes before the first switching point of all heating circuits associated with this control unit and end when the last heating circuit is stopped If your circulation pump should work independently of the heating circuits you can enter your own new DHW circulation pump program as follows Exampl
74. y Simultaneously release Holiday and Display to save your input The display shows the next switching point The new program that has been modified by the deletion is saved under Own program and the relevant heating circuit number here 2 You can call up your new program by pressing Prog and turning the rotary selector gt Chapter 7 10 Press Back to return to the permanent display 54 Logamatic 4211 Subject to technical modifications Additional programming options a 8 1 3 Deleting a heating phase AS A heating phase consists of two switching points a start and a stop point If you wish to delete a heating phase both switching points must be deleted Example In the Midday program for heating circuit 2 you want to delete the Monday ED RIALA heating phase from 11 30 to 13 00 to create one single heating pause from 8 00 gt f ie to 17 00 Your modified program will be saved under the program name Own and the number of the heating circuit A 1 2 06 00 08 00 11 30 13 00 17 00 22 00 B 1 gt 3 06 00 08 00 17 00 22 00 7 747 012 053 12 1RS Fig 18 Deleting a heating phase A Midday program New program Own program 2 Day mode Night mode on y delete e Select a heating circuit gt Chapter 7 6 Example Heating circ 2 e Select
75. y 09 30 21 C e Enter the fourth switching point Saturday Sunday 23 30 17 C To enter the second to fourth switching points you only need to repeat the previous steps E Only after all switching points have been correctly entered press Back to return to the permanent display Your heating program will now operate according to your Own program You can call up your new Own program by pressing Prog and turning the rotary selector Buderus Logamatic 4211 Subject to technical modifications 61 En Additional programming options 8 3 Creating a new DHW program You may operate DHW heating either according to the factory settings Program select by heat circs or according to your own switching program Program select own DHW USER INFORMATION With the factory setting Program select by heat circs DHW heating begins 30 minutes prior to the first switching point of all heating circuits associated with this control unit and ends when the last heating circuit is stopped New switch point Buderus If DHW is to be heated independently of the heating circuits you can enter your own new DHW program as follows Example On all weekdays DHW should be heated from 06 30 until 09 00 e Select a heating circuit gt Chapter 7 6 here DHW e Select a program for the heating circuit DHW gt Chapter 7 10 here Program select new The display shows the blank screen Ne

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