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1. Logamatic Logamatic Logamatic Logamatic Logamatic 4XXX AXXX 4XXX 400K AXXX Close hook Close hook switch switch Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 13 Ss Modules and their functions 5 3 2ZM433 central module The ZM433 module controls to transfer heat in case of demand from the external heat sources to the heating system This module also controls one heating zone with mixing valve The manual switches on the module only have service and maintenance functions and only affect 120 V outputs If the manual switches are not set to automatic a corresponding message appears on the MEC2 remote control and the fault indicator lights up USER NOTE Never use the manual switches to shut down the heating system during temporary absence Use the vacation function for this purpose Fig 7 ZM433 gt operating instructions of the Logamatic i 4323 control pane ae Se N wiring faults internal module faults The control functions remain operational in manual manual mode mode Fault messages appear as plain text f on the MEC2 remote control USER NOTE LEDs for the functions Display Mixing valve opening hotter For information regarding the sensor Display y Mixing valve closing colder connection see Chapter 5 1 Bi isplay Heating zone WWSD enabled Displ
2. actuator no Press Back to return to the next level up Input range Factory setting actuator yes yes no Buderus 62 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data Eg 11 21 Entering actuator run time Here you can enter the actuator run time of existing actuators Generally actuators have a run time of 120 sec e USER NOTE If you notice a constant oscillation of the mixer you can slow down the control characteristics by reducing the actuator run time Then the constant cycling of the mixer will stop a Q 0 heatingzone data 2 heating system radiator Q heatingzone data 2 actuator run time 120sec E j Q heatingzone data 2 actuator run time 90sec Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu actuator run time appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 90sec The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting actuator ru
3. All values are automatically reset Call up the service level general data appears as the first main menu Turn the dial until main menu reset appears The display shows the selected main menu Briefly press Display to call up a submenu here settings controller All settings may be lost if you press for too long The display shows the selected submenu Press and hold Display The blocks in the last line disappear one after another The reset occurs when all blocks have disappeared If the button is released while a block is still visible the reset is canceled After implementing a reset the display automatically reverts to the next level up When terminating a reset press Back to return to the next level up Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 113 23 Reset to the factory settings 23 2 Resetting the fault log Using the reset fault log function you can reset the whole fault memory This deletes all entries in the fault log Call up the service level general data appears as the first main menu CID O Turn the dial until main menu reset appears Briefly press Display to call up a submenu here settings controller All settings may be lost if you press for too long The display shows the selected submenu RESET settings controller LLL O Turn the dial until fault log appears The dis
4. The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 77 F 25 C The display shows the set value Release Display to save your input drying slab max temperature 77 F Input range Factory setting Maximum temperature 77 F 140 F 25 C 60 C 113 F 45 C Buderus 70 Logamatic 4323 Technical specifications are subject to change without prior notice O drying slab hold max temp heatingzone data 2 4 days aN To heatingzone data 2 Vaan Heating zone data n Set the holding time Here you can select a period of time for which the maximum temperature should be held to dry out the drying slab Turn the dial until submenu drying slab hold max temp appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 20 days The display shows the set value Release Display to save your input drying slab hold max temp 20 days Input range Factory setting Hold maximum temperature 0 days 20 days 4 days Q heatingzone data 2 drying slab setback 9 F t O heatingzone data 2 Setting setback temperature Here you can select the steps in which the temperature for drying out the drying slab should be set back The setback ends at 68 F 20 C Turn the d
5. 18 F 10 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting raise boilr temp 18 F 72 F 10 C 40 C 72 F 40 C Buderus 78 Logamatic 4323 Technical specifications are subject to change without prior notice 12 7 External fault message WF1 2 DHW data EB An external zero volt fault message contact of a DHW primary pump or an inert anode can be connected to terminals WF1 and WF2 of FM441 module WF1 and WF2 contacts closed no fault WF1 and WF2 contacts open fault 3 O 6 The display shows the selected submenu DHW data DHW C u DHW data external fault message WF1 2 The display shows the selected submenu none Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW Call up the service level general data appears as the first main menu Turn the dial until submenu external fault message WF1 2 is displayed Hold down Display and turn the dial until the desired value appears N Ilaj Li here circulator The display shows the set value DHW data ipi u external fault Release Display to save your input message WF1 2 circulator S Press Back to return to the next level up Input range Factory setting external fault message none none
6. DHW data DHW yes DHW data thermal disinfection no VANN 0 Buderus The system tries to reach the set thermal disinfection temperature for three hours If this fails for example because too much DHW was used during this time the error message thermal disinfection failed appears You may also set up thermal disinfection via your own switching program Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until thermal disinfection appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here yes 82 Logamatic 4323 Technical specifications are subject to change without prior notice DHW data thermal disinfection yes The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting thermal disinfection no no yes Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 83 12 DHW data 12 10 Setting disinfection temperature WARNING DHW data DHW yes DHW data temperature disinfection 158 F t Q DHW data temperature disinfection 167 F
7. Ln Heating zone data 11 5 Minimum supply temperature heatingzone data 2 heating system radiator Q minimum heatingzone data 2 supply temp heatingzone data 2 minimum supply temp 50 F Y The minimum supply temperature limits the heating curve to a minimum set point This function will not be displayed with constant heating systems Change value only if necessary Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu minimum supply temp appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 50 F 10 C This value sets the temperature below which the supply temperature must not drop The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting minimum supply temp 41 F 158 F 5 C 70 C 41 F 5 C Buderus 44 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 6 Maximum supply temperature heatingzone data 2 heating system radiator Q he
8. no control command Example 50 actuator is commanded in a cycle of 10 seconds for 5 seconds in the direction Mixer opens hotter 100 actuator is controlled every 10 seconds for 10 seconds towards Mixer closes colder constant Circulator Indicates the operating condition of the circulation pump sa Press Back to return to the next level up Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 107 20 Monitor data 20 2 DHW monitor data The DHW monitor menu can be used to display data for DHW settings The displays depend on the settings that have been selected in the DHW function Call up the service level general data appears as the first main menu a Turn the dial until main menu act system data appears Press Display to call up a submenu here heating zone 0 The display shows the selected submenu DISPLAY heating zone 0 Turn the dial until submenu DHW appears The display shows the selected submenu a_i tiQUI Os DISPLAY DHW Press Display The calculated set value and the actual value for the DHW temperature are MONITOR DHW displayed temperature 140 135 automatic day Possible operating modes optimizd 120min off constant oper auto mode always automatic day vacation optimization disinfection reloading daily heat up
9. sensor temperature is applied either defective not connected not sensor plugged into the control panel Check whether the outdoor network at the control panel with temperature sensor is connected to address 1 or is contacted at the the control panel with address 1 wrong module for information regarding the position of the outdoor temperature sensor see gt Chapter 5 1 Communication to control panel with Check communication with address 1 is interrupted address 1 Central module or control panel Replace outdoor temperature defective sensor or central module supply Mixer is no longer being Sensor is defective or not connected Check the sensor connection SEMIN controlled An actuator mixer was inadvertently If the heating zone is to be selected for the heating zone operated without an actuator enter no under actuator in the appropriate menu of the MEC2 gt Chapter 11 20 DHW sensor Heating of domestic hot water is Sensor is defective or not connected Check the sensor connection stopped Check sensor connection on DHW storage tank DHW was inadvertently selected Deselect DHW in the MEC2 under parameter DHW data if DHW heating is no longer desired gt Chapter 12 Module or control defective Replace sensor or module DHW cold Heating of domestic hot water Loading pump defective Check that temperature control or is stopp
10. 0005 11 7 Selecting remote control 22 00 11 8 Maximum room effect 020002 ee 11 9 Selecting setbacktype 2 04 11 10 Setting outdoor setback temperature 11 11 Vacation setback type 2 0022 eee eee 11 12 Stopping setback at low outdoor temperatures 11 13 Setting supply setback 020 00 11 14 Room temperature offset 00 0000008 11 15 Automatic adaptation 2 00002 eee 11 16 Setting switch optimization 02 11 17 Setting switch off optimization time 11 18 Setting frost protection temperature 11 19 Setting DHW priority 20 00 11 20 Input heating zone actuator 2 200000 11 21 Entering actuator runtime 00 000008 11 22 Boiler temperature increase 020000 11 23 External changeover 2 0 02 eee ee 11 24 External pump fault message 0000 11 25 Drying slab as 32h ae oe Ge eee Sake oars Se eee 12 DHW data isos 66543402 eas kn tae eee eee ewes 12 1 Selecting the DHW storage tank 12 2 Settemperature range 22 0220 02 2e 12 3 Selecting switching optimization 12 4 Selecting residual heatuse 00 12 5 Setting differential 22 00 12 6 Increasing boiler temperature 0204 12 7 External fault messa
11. Buderus 108 Logamatic 4323 Technical specifications are subject to change without prior notice Monitor data EJ optimizd Indicates the period during which the system starts DHW heating before the actual set point to achieve the set DHW temperature in good time O Rotate selector to scroll through the DHW monitor data DHW loading MONITOR DHW ia DHW loading off Indicates the operating condition of the tank primary pump recirculation on e recirculation Indicates the operating condition of the DHW circulation pump S Press Back to return to the next level up Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 109 20 Monitor data 20 3 Substation monitor data aQ DISPLAY heating zone 0 DISPLAY sub station aQ sub station outdoor 5 avg temp 4 supply 140 138 Q sub station supply 140 138 external demand 0 circulator off Y Buderus Call up the service level general data appears as the first main menu Turn the dial until main menu act system data appears Press Display to call up a submenu here heating zone 0 The display shows the selected submenu Turn the dial until the desired submenu appears here sub station The display shows the selected submenu Press Display The outdoor value indicates the current outdoor temperature The avg temp v
12. Check using Chapter 5 Tab 1 whether the module may be used for this type of control panel wrong module x All outputs are switched off from the module and the corresponding error LED is switched on Different module installed in one slot of control panel e g FM442 was replaced with FM441 By mistake an incorrect module was selected for this MEC2 slot The MEC2 remote control corresponding module or control panel is defective Insert new module into MEC2 gt Chapter 10 Check module selected in the MEC2 gt Chapter 10 If necessary replace relevant component Tab 3 Fault table Buderus 104 Logamatic 4323 Technical specifications are subject to change without prior notice Fault 19 Fault Effect on control characteristics Possible causes of fault Remedy unknown All outputs are switched off from This is a later module type not Checking the control panel version module x the module and the recognized by the older control in the MEC2 gt Chapter 21 corresponding error LED is software If necessary replace the CM431 switched on and MEC Module or control panel is defective If necessary replace module or control panel inert anode No effects on control Inert anode incorrectly connected or Check inert anode and replace if characteristics defective required The module is defective
13. Logamatic 4323 Technical specifications are subject to change without prior notice 111 2 Selecting the control panel 22 Selecting the control panel service level controller a controller Logamatic 4321 t controller Logamatic 4323 Buderus With the controller menu you can select a control panel if the MEC2 is operated offline i e without connected control panel or with a separate power supply unit Call up the service level general data appears as the first main menu Turn the dial until main menu controller appears The display shows the selected main menu Press Display to call up a submenu here Logamatic 4321 The display shows the selected submenu Hold down Display and select the desired value with the dial here 4323 The display shows the set value Release Display to save your input Press Back to return to the next level up 112 Logamatic 4323 Technical specifications are subject to change without prior notice Reset to the factory settings 23 23 Reset to the factory settings USER NOTE With the reset menu you can change all settings of the operator or service levels back to their factory settings Exception The timer program is retained 23 1 Resetting all control panel parameter settings service level reset RESET settings controller RESET settings controller gt
14. The display shows the selected submenu Turn the dial until submenu remote control appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here no The display shows the set value Release Display to save your input Press Back to return to the next level up e g USER NOTE This parameter cannot be adjusted via the telecontrol system it is only intended to be used in situ Input range Factory setting remote control yes yes no Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 31 o General data 9 5 Manual switch fault message Wm oe general specs min outdoor temp 14 F Q general specs fault manual switch no general specs fault manual switch fault gt A fault message can be displayed on the MEC2 if a manual switch on a function module is set to W Call up the service level general data appears as the first main menu Press Display to call up a submenu here min outdoor temp The display shows the selected submenu Turn the dial until submenu fault manual switch appears The display shows the selected submenu Hold down Display and select the desired value with the dial here fault The display shows the set value Release Display to save your input Press Back to return to
15. are structured as a loop and start again after the last main menu general data module selection general data 24 Logamatic 4323 Technical specifications are subject to change without prior notice Calling up the service level Calling up submenus Select the main menu see above whose submenu you want to call up Press Display You can access all submenus of the main menu selected by turning the dial Example main menu general data Oa min outdoor temp building type min outdoor temp Press and hold down Display You can modify the adjustable parameters of the submenu selected by turning the dial For example you might select functions or temperatures Release Display to save your input Press Back to return to the next level up 6 O Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 25 Le Calling up and modifying settings 8 Calling up and modifying settings USER NOTE i The menus displayed on the MEC2 remote control of the control panel depend on which modules are installed and on their settings These service instructions only describe the menus of the ZM433 central module standard equipment and those of the most commonly used function modules FM441 and FM442 accessories All other menus are explained in the separate technical documentation of each respective module TD Call up the service level general data appear
16. subject to heat source and module inert anode circulator Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 79 12 DHW data 12 8 External contact WF1 3 DHW data DHW yes DHW data external contact WF1 3 none i Q Buderus loading once or disinfection can be initiated subject to setting if a zero volt button is connected to terminals WF1 and WF3 in module FM441 The thermal disinfection switching program is disabled if thermal disinfection has been selected Loading once If DHW heating has been switched off according to the switching times of the DHW program you may start loading once with the button The DHW recirculation pump starts simultaneously Unlike heating once via the MEC2 remote control the loading once process cannot be cancelled loading once will only be stopped when the storage tank has been fully heated Disinfection You can start thermal disinfection with the above mentioned zero volt button if you have assigned the external contact to disinfection Any existing thermal disinfection program will then become ineffective Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until submenu external contact WF 1 3 is display
17. DHW data recirculation per hour off Hold down Display and turn the dial until the desired value appears here off The recirculation pump will now only operate during heating once The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting recirculation per hour off 2 cycles 1 cycles 2 cycles 3 cycles 4 cycles 5 cycles 6 cycles constant oper Buderus 90 Logamatic 4323 Technical specifications are subject to change without prior notice 13 Substations Substations 13 The Logamatic 4323 control panel with ZM433 central module can be operated with address 0 stand alone address 1 linked to a master i e the control panel that provides externally generated heat and with address gt 1 as substation linked to other Buderus Logamatic 4000 control panels Operation with address 0 stand alone or address 1 as master An external heat source such as a solid fuel boiler a solar thermal system or an external boiler supplies heat with priority to a buffer storage tank which contains the supply sensor The supply sensor measures the buffer temperature If this exceeds the minimum heat up temperature the supply pump if installed and other pumps will be switched on Operation with address gt 1 substation The supply sensor is only requ
18. Hold down Display and turn the dial until the desired value appears here 10 F 12 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting min outdoor temp 22 F 32 F 30 C 0 C 14 F 10 C Buderus 28 Logamatic 4323 Technical specifications are subject to change without prior notice 9 2 Building type General data oo Input the insulation capacity of the building in building type Different types of construction have different heat storage capacities This function sets the heating system to the specified construction type The heat storage capacity is divided into three classes light low heat storage capacity e g prefabricated building wood frame construction medium average heat storage capacity e g hollow concrete block construction massive high heat storage capacity e g brick building 8 The display shows the selected submenu general specs min outdoor temp 14 F Le Q The display shows the selected submenu general specs building type medium here massive y Q The display shows the set value general specs Release Display to save your input Call up the service level general data appears as the first main menu Press Display to call up a submenu here min out
19. Initially only data from the control panel can be downloaded if the type of control panel varies from that entered in the MEC2 remote control The display will then show the adjacent message Press Night mode The display will then show the adjacent message b Alternative controller of the same model If the MEC2 is connected to a different control panel of the same type the display will show the adjacent message for approx 3 seconds If the MEC2 remote control is separated from the control panel and data is modified the display shows automatic button send night button receive when the unit is reinstalled into a control panel of the same type The control panel scans whether the new data should be accepted or whether the old data from the control panel should be used again 22 Logamatic 4323 Technical specifications are subject to change without prior notice data writing to control panel data reading from control panel automatic button send night button receive data writing to control panel data reading from control panel Commissioning the MEC2 remote control a Press AUT data writing to control panel The display will then show the adjacent message Press Night mode data reading from control panel The display will then show the adjacent message c Identical control panel If the MEC2 remote control is separated from the control panel and data is also mo
20. MEC2 remote control if the same address is allocated more than once 1 Master lead control panel Address 1 is a special setting since the device with this address acts as the master device The master controls the boiler Always connect the outdoor temperature sensor to the master You may set up the Logamatic 4323 control panel as the master if it controls an external heat source When connected to other Logamatic control panels set the Logamatic 4323 control panel as the master address 1 that has the FM456 FM457 or FM458 cascade module installed The master monitors the ECOCAN BUS which links the control panels together The master recognizes if an address has been allocated more than once A fault message is then displayed by the MEC2 All networked control panels transfer their set values to the master which uses them to formulate the overall set value There may be only one master on any network 2 max 15 Slave subordinate control panel All devices with these addresses are described as slaves No slave may ever have address 1 Each address must only be allocated once When used as a substation the Logamatic 4323 control panel will always be a slave and therefore have an address set higher than 1 Tab 2 Control panel addresses USER NOTE The outdoor temperature sensor FA and the system supply sensor FK in conjunction with the Logamatic 4323 control panel must always be connected to the I h FM456 FM4
21. MECZ oon ce ee kee av ee ee be we 21 MEC2 remote control 21 Minimum outdoor temperature 28 Modes of operation 107 108 Module selection 0 38 Modules 2 2 2 5005 11 Modules installed 9 MONITO os eee ce a wi a eee a ee Rw We a 106 N Night setback with room hold 46 NM482 power module 13 O Operating method 24 Operating mode switching 46 Optimization DHW 75 Outdoor setback 51 Outdoor temperature threshold 60 P Party function aoaaa a 46 Pause function oaoa a 46 Product description 7 R Radiant floor heating 39 68 Radiators o e saoo oo ee a a 0004 39 Recirculation aooaa aaa a 88 Reference temperature 56 Relay s eg wo ae ote te Ra a ee Se 96 Relay test i ages dus bok a a a Be eo 96 Remote control 31 46 Remote control without display BFU 46 RESOL ice argia hess Gok are iia a eee ee 113 Residualheat 76 Room thermostat 39 118 Logamatic 4323 Technical specifications are subject to change without prior notice Index S S1 hook switch aoaaa a 13 Scope of delivery aoaaa 7 Service call oaa 2200 33 Service level aoaaa a 24 Set point adjustments 46 Set the time aaa a 30 Set warm weat
22. Setback aon Call up the service level general data appears as the first main menu zone 2 O Turn the dial until main menu heating zone no appears here heating Press Display to call up a submenu here heating system The display shows the selected submenu heatingzone data 2 heating system floor Turn the dial until submenu drying slab appears Q Buderus 68 Logamatic 4323 Technical specifications are subject to change without prior notice heatingzone data 2 drying slab no i heatingzone data 2 Heating zone data Eg The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here yes The display shows the set value Release Display to save your input drying slab yes Input range Factory setting drying slab no no yes USER NOTE e Parameters on the following pages enable you to select the temperatures and settings for the drying period The setting reverts automatically to no as soon as the drying process has been completed Q heatingzone data 2 drying slab increase by 9 F LD g Q heatingzone data 2 Setting the temperature increase Here you can select the steps in which the temperature should increase to dry out the drying slab The temperature rise begins at 68 F 20 C Turn the dial until submenu d
23. Y Via the temperature disinfection function you can set the thermal disinfection temperature gt Chapter 12 9 RISK OF SCALDING from hot water f thermal disinfection is activated ensure that a thermostatic tempering valve is installed as protection against scalding Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until submenu temperature disinfection appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 167 F 75 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting temperature disinfection 149 F 167 F 65 C 75 C 158 F 70 C Buderus 84 Logamatic 4323 Technical specifications are subject to change without prior notice DHW data EB 12 11 Setting day of week for disinfection The day of the week for disinfection can be set with the day of week disinfection function e USER NOTE The day of week disinfection function is not displayed if thermal disinfection was previously set using the external contact WF 1 3 function aQe DHW data DHW yes DHW data day of we
24. control Slot 3 e g FM442 heating zone 5 heating zone 6 boOD DN Slot 4 e g FM441 heating zone 7 DHW DHW recirculation pump or heating zone 7 heating zone 8 with module FM442 in slot 4 Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 9 al Controls and MEC2 remote control 4 2 MEC2 remote control 13 TO da al 16 15 6 720 618 328 01 1RS Fig 4 MEC2 remote control 1 Display 9 Display for set nominal room temperature 2 Dial 10 Input DHW temperature heating 3 Continuous heating mode day 11 Set the time 4 Automatic heating mode by timer 12 Change temperature values 5 Constant setback mode night 13 Set warm weather shutdown temperature 6 Set the day 14 Back to standard display 7 Set vacation days 15 Select a timer program 8 Select standard display 16 Select heating zones DHW zone Buderus 10 Logamatic 4323 Technical specifications are subject to change without prior notice Modules and their functions fe 5 Modules and their functions All modules are shown here that are or can be installed in your Logamatic 4323 control panel Logamatic 4323 MEC2 remote control o CM431 controller module O ZM433 central module o Supply of external heat generator heating zone FM441 function module
25. m Remote control Maximum room flow Setback type M Outdoor setback from Vacation setback type M No setback below M Supply setback Room temperature offset M Automatic adaptation M Switch optimization M Shut down optimization M Freezeprotect at DHW priority m Actuator M Actuator run time M Boiler temperature rise M External day night aut M External pump fault message Drying slab Drying slab temperature rise Drying slab warm up time M Maximum drying slab temperature m Maximum drying slab time Drying slab reduction temperature Drying slab reduction time Temperature guide 0 V corresponds to Temperature guide 10 V corresponds to Heating zone 1 2 3 etc see heating zone 0 DHW m DHW yes no DHW range to M Switch optimization Leftover heat utilization Differential Stop differential Start differential DHW yes no Boiler temperature increase External fault message WF1 WF2 l External contact WF1 WF3 l Thermal disinfection Temperature disinfection Disinfection day of week M Time of disinfection Daily heating Recirculation switch on frequency per hour Sub station m Minimum heat up temp Maximum heat up time Boiler temperature increase Special parameters Heating curves m Heating zone 0 Heating zone 1 Heating zone 2 Heating zone 3 m Heating zone 4 H
26. menu item cannot be opened because the input contacts are already assigned Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu external fault circulator is displayed The display shows the selected submenu Hold down Display and select the desired value with the dial here via WF 1 2 The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting external fault circulator none none via WF 1 2 Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 67 an Heating zone data 11 25Drying slab With this control panel you can enter a drying program for the slab if the heating system includes floor heating floor must be set as the heating system USER NOTE a Check with your drying slab contractor for special requirements for drying slab drying prior to enabling this function After a power failure drying slab drying continues from where it was interrupted 3 5 6 8 9 10 x 7 747 012 074 10 1RS Fig 17 Drying slab x Time days y Temperature 3 days hold time Increase by Max temperature
27. selected submenu Hold down Display and turn the dial until the desired value appears here no The display shows the set value Release Display to save your input DHW priority no gt Press Back to return to the next level up Input range Factory setting DHW priority yes yes no Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 61 Ln Heating zone data 11 20Input heating zone actuator You may determine via the actuator function whether or not the system is equipped with a heating zone actuator mixer The control panel drives the actuator if it is installed in the heating zone mixer The heating zone is controlled via the boiler supply temperature if no heating zone actuator is installed Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system aC g The display shows the selected submenu heatingzone data 2 heating system radiator Turn the dial until submenu actuator appears Q The display shows the selected submenu heatingzone data 2 actuator Hold down Display and turn the dial until the desired value appears here no t IC b The display shows the set value neaungzone date 2 Release Display to save your input
28. set value Hold down Display and turn the dial until the desired value appears here module none automatic We recommend this setting The modules are automatically recognized and installed The display shows the set value Release Display to save your input Press Back to return to the next level up 38 Logamatic 4323 Technical specifications are subject to change without prior notice 11 Heating zone data Heating zone data air The following heating systems can be selected none The heating zone function is not required All following submenu items for heatingzone data are not applicable radiator or baseboard The heating curve is automatically calculated for radiators or convectors depending on the required curve floor A flatter heating curve is automatically calculated for lower design temperatures low level The level of the supply temperature is a linear consequence of the outdoor temperature The resulting heating curve connects as a straight line the base point with a second point that depends on the design temperature constant Use this system for controlling a swimming pool heating system or to pre control ventilation circuits if the heating must always provide the same set supply temperature independent of the outdoor temperature You cannot install a remote control for this heating zone if you have selected this system room thermostat The set supply temperature
29. the next level up USER NOTE With no only a warning message is shown with the cover closed With fault message an entry in the error log is also made This allows automatic forwarding over the Logamatic remote control system In the case of collective fault a collective fault message will also be issued via a zero volt contact e g via the FM448 function module Input range Factory setting fault manual switch no no fault collective fault Buderus 32 Logamatic 4323 Technical specifications are subject to change without prior notice 9 6 Automatic service call General data oo You can generate an automatic service call at the operator level on the MEC2 remote control display You can set the following service call after date Enter the date of the next scheduled service 01 01 2000 12 31 2088 Maintenance according to hours run only for control panels with direct boiler control e USER NOTE The service call after hours run time is not possible with this control panel os w general specs min outdoor temp 14 F Q general specs automatic service call no a i Q general specs automatic service call ee date Q Call up the service level general data appears as the first main menu Press Display to call up a submenu here min outdoor temp The display shows the selected submen
30. with a long heat up time e Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 a Q 6 Press Display to call up a submenu here heating system Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 57 Eg Heating zone data The display shows the selected submenu heatingzone data 2 heating system radiator Turn the dial until submenu optimization for appears Q The display shows the selected submenu heatingzone data 2 optimization for none Hold down Display and turn the dial until the desired value appears here shut 7 down The display shows the set value heatingzone data2 Release Display to save your input optimization for shut down Press Back to return to the next level up Input range Factory setting optimization none none start up shut down startup shutdown Buderus 58 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 17Setting switch off optimization time heatingzone data 2 heating system radiator Q heatingzone data 2 shutdown optimizationtime 60min y Q heatingzone data 2 shutdown optimizationtime 30min Y If you have selected shut down or startu
31. 2 in an ECOCAN BUS connection is also feasible In such cases the Logamatic 4323 as a stand alone heating zone controller acts as a master control panel that monitors the manually or indirectly fired heating of a buffer tank and makes the stored heating energy available to connected consumers As the substation in an ECOCAN BUS connection the Logamatic 4323 control panel can communicate with a master boiler control panel that is part of a Logamatic 4000 control system 2 2 Scope of delivery Digital Logamatic 4323 control panel with CM431 controllermodule ZM433 central module MEC2 remote control or boiler display and safety components Outdoor temperature sensor FA Supply temperature sensor FZB Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 7 LS Setting parameters and display data 3 Setting parameters and display data Some options are only displayed subject to the modules that have been installed and the adjustments made earlier General Data m Minimum outdoor temperature M Building type M Remote control M Manual switch fault message M Automatic service call m0 10 V input Module selection m Slot A Slot 1 Slot 2 Slot 3 Slot 4 Heating zone 0 m Heating system M Name of the heating zone Base point temperature Design temperature M Minimum supply temperature M Maximum supply temperature
32. 57 or FM458 cascade module if installed If there is no cascade module installed plug both sensors into the ZM433 central module system supply sensor at the FZB Buderus 12 Logamatic 4323 Technical specifications are subject to change without prior notice 5 2 NM482 power module Terminator when networking several control panels WARNING Make sure that all electrical work is carried out by a trained contractor RISK OF FATAL INJURY due to electric shock Before opening the control panel isolate all poles of the power supply and secure against accidental reconnection To ensure fault free data transmission between several control panels install a terminator for the two control panels which are furthest apart The terminator is installed on the component side of the NM482 power supply module and is switched on by the hook switch gt Fig 6 2 The factory settings are hook switch S1 open terminator not applied Hook switches The module is configured with the hook switches open factory setting eT closed Modules and their functions E Fig 6 NM482 power module 1 ECOCAN BUS 2 Hook switch S1 for terminator factory settings open Example of the terminator hook up when several Buderus control panels are connected
33. F 5 C 99 C 41 F 5 C temperature 10 V 41 F 210 F 5 C 99 C 194 F 90 C USER NOTE e If a curve with a negative incline is programmed e g O volt 194 F 90 C ensure that all O 10 V inputs of a control panel are controlled An open input corresponds to 0 V and thus a to heat demand for e g 194 F 90 C The demand should be set parallel at all inputs of a control if applicable Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 37 10 Module selection 10 Module selection Oe service level module selection AL module selection Slot A central module ZM433 Q module selection Slot 1 2 heating zones FM442 g Q module selection Slot 1 module none automatic Y Buderus On starting the Logamatic 4323 control panel or after a system reset the modules are automatically recognized and their information downloaded Example Slot 1 FM442 Slot 2 3 and 4 N A However these modules can also be set manually if necessary Call up the service level general data appears as the first main menu Turn the dial until main menu module selection appears The display shows the selected main menu Press Display to call up a submenu here Slot A central module The display shows the selected submenu Turn the dial until submenu Slot 1 appears The display shows the
34. FM457 KSE 4 EMS X X CM431 V6 xx or higher FM458 Strategy module x X CM431 V8 xx or higher ZM433 Sub station Xx USER NOTE This manual only describes temperature control general specs min outdoor temp 14 F 0 10V input general specs temp control Call up the service level general data appears as the first main menu Press Display to call up a submenu here min outdoor temp The display shows the selected submenu Turn the dial until submenu 0 10V input appears Hold down Display and turn the dial until the desired set value appears here temp control The display shows the set value Release Display to save your input Input range Factory setting 0 10 V input OFF temp control temp control Logamatic 4323 Technical specifications are subject to change without prior notice Buderus 35 eg General data 9 8 Temperature control 0 10 V input general specs min outdoor temp 14 F general specs temperature OV corresp to 41 F Buderus If you have selected temperature for the 0 10 V input you can adapt the start and stop point if required for the external 0 10 V input You can set the following The set point in F C for 0 V temperature OV corresp to The set point in F C for 10 V temperature 10V corresp to The following linear curve
35. Installation and Service Control Panel Instructions Logamatic 4323 For heating contractors Read carefully prior to commissioning and service work 6 720 618 588 11 2008 US CA Buderus 1 Salete oot a Oe eek eae Seer es ee dee Gees ak 5 Ic ADOULINIS man al sess s emea se eee ce Fee eee Been eRe eS Ee OSS 5 1 2 Intended USE s os osati eke es SSR ETE SS REE TRE eee ee eee ees 5 1 3 Standards regulations and directives sosoo es 5 1 4 Key to SVMbOG 65 eon ode eee ee ae ORE Ge Se eee LS OE ome 5 1 5 Please observe these notes asana aaa a 5 1 6 Important instructions for commissioning 0002 eee ees 6 1 7 Cleaning the control panel 00002 ee 6 Ve Disposal sw sees hae tbe Gece sew te Pee ew hee bee eee eee ae G 6 2 Product description and scope of delivery 7 2 1 Product description hau cate ead ee eh EN eee ee eee ee ee a AS 7 2 2 Scope OF CCIIVEN 64 45 sace be aets read eee eRe SE a eRe REESE EE ERA 7 Setting parameters and display data 0004 8 Controls and MEC2 remote control 020000 00 9 Ad Control panel controls eo atees oe OS ete be hs Bee See oes CEMA E ES Ae 9 4 2 MEC2 remote control 2 52 26 08 228 oe 4eS Paseo Sa RES ESE SR Se Ex 10 5 Modules and their functions 0 0000 e eee eeee 11 5 1 CM431 controller module 0002 cee ee 12 5 2 NM482 power module 2 2 0 2 ee 13 5 3
36. OTE Display Heating pump in operation In normal mode the manual switch should be set to AUT TheOand WW manual operation positions are special settings that should only be made by heating contractors W The heating pump is switched on The mixing valve is switched to zero volt and can be manually operated AUT The heating zone is operating in automatic mode 0 The heating pump is switched off The mixing valve is switched to zero volt The control functions continue to operate Current functions are indicated by LEDs Function modules FM443 FM445 FM448 FM456 457 and FM458 For more information see the documentation for the module in question Buderus 20 Logamatic 4323 Technical specifications are subject to change without prior notice Commissioning the MEC2 remote control 8 6 Commissioning the MEC2 remote control MEC is initializing connection with control module address established actual data reading from control panel unknown controller XX You can use the MEC2 remote control for all Logamatic 4000 control panels The MEC2 remote control can be installed directly in the control panel or be used as a remote control unit in a wall retainer or connected to an adapter with a separate power source The MEC2 starts initialization after a power supply has been connected The display shows MEC is initializing The control panel address is then display
37. Release Display to save your input heat up 06 00pm 5 Press Back to return to the next level up USER NOTE i If the DHW was heated to 140 F 60 C within the last 12 hours it is not heated at the specified time Input range Factory setting daily heat up disabled disabled 12 00 am 11 00 pm 00 00 23 00 Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 87 12 DHW data 12 14 Selecting the recirculation pump DHW data DHW yes DHW data recirculation yes O DHW data recirculation You can set DHW to be immediately available at the tap via the recirculation function Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until submenu recirculation appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here no The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting recirculation yes yes no Buderus 88 Logamatic 4323 Technical specifications are subject to change without prior notice DHW data EB 12 15Setting the
38. Replace the module external External components incorrectly Check connection and function of fault connected or defective external components tank primary and DHW recirculation pumps The module is defective If necessary replace the module insuff supply Pump logic will be cancelled Boiler sensor incorrectly positioned Install boiler sensor in the heat System may be insufficiently supplied Sensor must always be installed in the heat source Heat supply insufficient or non existent source or buffer storage tank Recharge a wood burning boiler for example supply sensor FZB Pump logic will be cancelled Sensor is defective or not connected Sensor should not be required but is needed because control panel has been incorrectly set up Module or control defective Check the sensor connection If necessary replace the sensor Check control panel address Sensor is required for address 0 or 1 at the CM431 With a CAN address lt 1 a boiler system is controlled by this control panel then parameter minimum warm up temp gt Chapter 13 1 is set to off Sensor will only be required for control panel addresses higher than 1 if boiler rise gt Chapter 11 22 higher than 0 has been entered If necessary replace module or control panel manual XX Control is run in manual mode Someone may have forgotten to s
39. The control functions remain operational in manual manual mode mode Fault messages appear as plain text on the MEC2 remote control Fig 12 FM441 LEDs for the functions Display Mixing valve opening hotter Display y Mixing valve closing colder Display Heating zone WWSD enabled Display g DHW in night mode below the set temperature Display Heating pump in operation Display L Tank primary pump in operation Displa Z Recirculation pump in operation play Display 1 Thermal disinfection active Buderus 18 Logamatic 4323 Technical specifications are subject to change without prior notice Modules and their functions fe Heating zone and DHW function Manual heating zone switch gt Fig 13 1 and DHW gt Fig 13 2 for heating zone ry for DHW supply AUT oe USER NOTE i In normal mode the manual switch should be set to AUT The positions 0 and yy manual mode are special settings reserved for heating contractors only WwW The heating pump or tank primary pump is Fig 13 FM441 switched on The mixing valve is switched to zero volt and can 1 Manual heating zone switch be manually operated 2 DHW manual switch The DHW recirculation pump is switched off AUT The heating zone or DHW circuit operates in automatic mode 0 The heating pump or tank primary pump as well as the DHW recirculation pump are switched off The mixing valve
40. The display shows the selected main menu service level relay test Press Display to call up a submenu here heating zone 0 The display shows the selected submenu RELAY TEST heating zone 0 Turn the dial until submenu heating zone 2 appears Q The display shows the selected submenu RELAY TEST heating zone 2 Press Display to call up a further submenu here circulator a The display shows the selected submenu RELAY TEST heating zone 2 circulator off Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 97 Le Running relay test Turn the dial until submenu actuator appears Q The display shows the selected submenu RELAY TEST heating zone 2 actuator Hold down Display and turn the dial until the desired value appears off FN here closed The display shows the set value RELAY TEST 2 ia i F heating zone 2 Release Display to save your input actuator closed Press Back twice to return to the next levels up This ends the relay test This will also be the case when you close the flap USER NOTE All relay test settings are cancelled at the end of the test Buderus 98 Logamatic 4323 Technical specifications are subject to change without prior notice Multi boiler systems 16 16 Multi boiler systems The Logamatic 4323 control panel together with modules FM456 457 458
41. The display shows the selected submenu DHW data differential 9 F Hold down Display and turn the dial until the desired value appears here 36 F 20 C The display shows the set value PEW date Release Display to save your input differential 36 F Gap Press Back to return to the next level up Input range Factory setting differential 36 F 4 F 20 C 2 C 9 F 5 C Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 77 12 DHW data 12 6 Increasing boiler temperature DHW data DHW aQ 6 Q DHW data raise boilr temp t 72 F O DHW data raise boilr temp 18 F With the raise boilr temp function you can determine the boiler water temperature during DHW heating The boiler raising temperature is added to the desired DHW temperature and results in the desired supply temperature for DHW heating The factory setting of 72 F 40 C is optimized for rapid DHW heating Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until submenu raise boilr temp appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here
42. ZM433 central module 2c osc cee thee eeeeewae eed de eede aw ees un 14 5 4 FM441 function module accessory sosoo es 18 5 5 FM442 function module accessory 2 000 ee 20 6 Commissioning the MEC2 remote control 21 7 Calling up the service level 0 00 020 eee eeee 24 8 Calling up and modifying settings 2 200 26 9 General data 0 0022 27 9 1 Minimum outdoor temperature 2 2 2 ee ee 28 9 2 Building type so iets ee Se Koes ale hee ew eee A a ee ee ee 29 9 3 Summer winter time changeover 0 00022 ee ee ee 30 G4 Remote Control qsdsr 26008 ese kei Se eee ew haw E a S ee eee ee 31 9 5 Manual switch fault message 2 2 ee ee 32 9 6 Automatic service call noaoo 33 97 DSTO Ville seek bs ke eee es eee Be eee bee eae ae oe 35 9 8 Temperature control O 10 V input 0 20 02 eee eee 36 10 Module selection 2 222 es 38 11 Heating zone data 22 iecces Oe eked bee be ES Bee eee eh ee Ou 39 11 1 Heating system selection s saosaoa a 40 11 2 Renaming heating zone ss cae ose 4a ee eet a Ue bee ehead wee Re eos 41 Buderus 2 Logamatic 4323 Technical specifications are subject to change without prior notice 11 3 Adjusting base point temperature 11 4 Setting design temperature 00 11 5 Minimum supply temperature 0000 11 6 Maximum supply temperature 2
43. alue describes the outdoor temperature taking the specified type of building into consideration with which the heating curve was calculated The supply value indicates the supply temperature set value actual value that is captured by the master via the supply sensor and that is transmitted by a substation via the ECOCAN BUS Turn the dial to scroll through the substation monitor data System supply set value actual value The system supply of the control panel network is indicated The value external demand indicates an additional heat demand in F C fed in via terminal U connection 1 and 2 in accordance with the diagram on page 16 The circulator value indicates the status of the supply pump Press Back to return to the next level up 110 Logamatic 4323 Technical specifications are subject to change without prior notice 21 Display version service level version version MEC 8 xx controller 8 xx Display version Ea Using the version menu you can display the MEC2 remote control version as well as that of the selected control panel Call up the service level general data appears as the first main menu Turn the dial until main menu version appears The display shows the selected main menu Press Display to call up a submenu The versions for the MEC2 remote control and the control panel are displayed Press Back to return to the next level up Buderus
44. atingzone data 2 maximum supply temp 167 F _____ ees i Q The maximum supply temperature limits the heating curve to a maximum set value This function will not be displayed with constant heating systems Change value only if necessary Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu maximum supply temp appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 140 F 60 C This value sets the temperature above which the supply temperature must not rise The display shows the set value heatingzone data 2 Release Display to save your input maximum supply temp 140 F 5 Press Back to return to the next level up Input range Factory setting Maximum supply temperature for floor 86 F 140 F 30 C 60 C 122 F 50 C Maximum supply temperature 86 F 194 F 30 C 90 C 167 F 75 C for radiators convectors base point Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 45 Lar Heating zone data 11 7 Selecting remote control Under this menu item you can specify whe
45. ature oaoa a aa 94 Design temperature 0 43 DHW heating aoaaa a 73 Disinfection oaoa aaa a 80 82 Dryingslab s sos dor aaa a e a a 68 E ECOCAN interface 91 ENON ge ete ee ww a Ph a we 103 Ext DHW load 2 80 External heatinfluence 56 F Fault lg ices a awe a de ew BE ee es 101 FAUS 6 sah be ee oR ee es eG a A 102 FIOOR se hee a he ee ee aa 41 FM441 function module 18 FM442 function module 20 Frost protection temperature 60 H Heat storage capacity 0 29 Heating curves aoaaa 39 95 Heating system aoaaa a 39 Heating system selection 40 Heating zone aoaaa a 18 Heating zone apartment 41 Heating zone bathroom 41 Heating zone building 41 Heating zone actuator 62 Heating zone data 39 Heating zone function 15 39 Buderus l Identical controlpanel 23 Inert anode aaa a 79 J JumperplugJ1 0 17 K Key Code peak kk he Bae ee we ee 24 L LCDdisplay 00 0 100 Light emitting diodes 14 18 20 LING OSS oe ke we ee Be ae a e e 91 M Mainmenus 2084 24 Manualswitch 08 14 Manual switch fault message 32 Maston ec a do anger a ae i eed sain teh 91 Maximum room effect 48
46. ay Supply or heating pump operational Buderus 14 Logamatic 4323 Technical specifications are subject to change without prior notice Modules and their functions fe Supply function ty on Manual switch supply pump gt Fig 8 1 USER NOTE i In normal mode the manual switch should be set to AUT The O and yf manual mode positions are special settings that should only be made by heating contractors W The supply pump is switched on AUT The supply pump operates automatically 0 The supply pump is switched off The control functions continue to operate Fig 8 ZM433 1 Manual supply pump 2 Manual switch heating zone 0 Heating zone function oy Manual heating zone switch for heating zone 0 gt Fig 8 2 USER NOTE i In normal mode the manual switch should be set to AUT The Oand WW manual operation positions are special settings that should only be made by heating contractors WwW The heating pump is switched on The mixing valve is switched to zero volt and can be manually operated AUT The heating zone is operating in automatic mode 0 The heating pump is switched off The mixing valve is switched to zero volt The control functions continue to operate Current functions are indicated by LEDs Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 15 Modules and their f
47. ay and turn the dial until the desired value appears here 34 F 1 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting outdr setback at 4 F 50 F 20 C 10 C 41 F 5 C Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 51 Lt Heating zone data 11 11 Vacation setback type heatingzone data 2 heating system radiator Q heatingzone data 2 vacation type of setback room setback xg O heatingzone data 2 vacation type of setback outdoor setback Y A separate setback type can be set for the time of the vacation For explanations of possible settings see Chapter 11 9 Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu vacation type of setback appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here outdoor setback The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting vacat
48. can control multi boiler systems cascades For a description of this function see the technical documentation of the relevant module Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 99 Carrying out an LCD test 17 Carrying out an LCD test Using the testing LCD menu you can check whether all symbols are fully displayed Call up the service level general data appears as the first main menu CD O Turn the dial until main menu testing LCD appears The display shows the selected main menu service level testing LCD Press Display ON AV SaD The LCD is OK if all signs and symbols are correctly displayed DEERE EEEEEEE DEEEEEEEEEEEEEH DEERE EEEEEEE BEEREETEETETETHI i Press Back to return to the next level up Buderus 100 Logamatic 4323 Technical specifications are subject to change without prior notice Fault log 18 18 Fault log Using the fault log menu you can display the last four fault messages of your heating system The MEC2 can only display the fault messages of the control panel it is connected to Call up the service level general data appears as the first main menu 8 a Gl JQ g Turn the dial until main menu fault log appears The display shows the selected main menu service level fault log Press Display The fault message is displayed fault Fault messages recorded by the con
49. ck determines the outdoor temperature limit The heating zone is switched off when this value is exceeded Below this limit the heating system heats to the set night temperature With room setback you determine a night temperature as the room temperature The heating zone is switched off when this value is exceeded Below this limit the heating system heats to the set night temperature For this function a remote control must be located in the relevant room shut down switches off the entire heating zone in reduced mode In setback mode the system heats to the set night temperature if setback is selected The heating zone pumps operate constantly USER NOTE i If constant has been selected in the heating system menu item only setback outdoor setback or shut down can be selected Setting the heating system to room thermostat and setback type to setback achieves the same effect for temperature setback as room setback Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 a OQ 6 Press Display to call up a submenu here heating system The display shows the selected submenu heatingzone data 2 heating system radiator Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 49 heatingzone data 2 type of setback ou
50. dified the display shows automatic button send night button receive when the unit is reinstalled into the same control panel The control panel scans whether the new data should be accepted or whether the old data from the control panel should be used again Press AUT data writing to control panel The display will then show the adjacent message Press Night mode data reading from control panel The display will then show the adjacent message Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 23 Calling up the service level 7 Calling up the service level Ca m service level general data Buderus Q Access to the service level is password protected The service level is intended for contractors only Unauthorized access to the service level invalidates your warranty The controls marked in gray are used for this function Press Display Heating zone Temp simultaneously and then release The service level is now enabled Control system Press and turn The service level is divided into several main menu levels If the last line is left blank without value entry there are further submenus connected with the main menu selected Calling up main menus You can scroll through the main menu level by turning the dial The main menus
51. door temp Turn the dial until submenu building type appears Hold down Display and turn the dial until the desired value appears building type massive 5 Press Back to return to the next level up Input range Factory setting building type medium medium massive light Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 29 o General data 9 3 Summer winter time changeover To adjust for daylight savings time open the flap of the MEC2 for the keypad of the second control level Hold down Time and select the desired time with the dial iN In spring set the time one hour ahead dial clockwise in fall set the time one hour back dial counterclockwise Buderus 30 Logamatic 4323 Technical specifications are subject to change without prior notice 9 4 Remote control general specs min outdoor temp 14 F Q general specs remote control Lee yes j Q general specs remote control no General data Eam The remote control offers the option of external data input or modification via service tools optional yes remote control not available no remote control is not available but system data can be downloaded and monitored Call up the service level general data appears as the first main menu Press Display to call up a submenu here min outdoor temp
52. e to control the DHW temperature Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 5 ia Safety CAUTION gt CAUTION RISK OF INJURY SYSTEM DAMAGE due to operator error Operator errors can cause injury and damage to property Make sure that children never operate the appliance unsupervised or play with it Make sure that only personnel trained to operate the appliance correctly have access to it SYSTEM DAMAGE from frost The heating system can freeze up in cold weather if it is switched off Protect your heating system against frost damage by draining it and the DHW piping at the lowest possible point USER NOTE Ensure that a circuit breaker is available to disconnect all poles from the mains power supply If there is no circuit breaker you will need to install one eJ USER NOTE Make sure that the heating system is protected with an adequately rated circuit breaker E USER NOTE Only use original Buderus spare parts Damage as a result of the use of spare parts not supplied by Buderus are excluded from the Buderus warranty 5 USER NOTE Ensure that radiant floor heating zones are equipped with a temperature operating limit Buderus 1 6 Important instructions for commissioning Before switching the control panel on check that its manual switches and those on the function modules are
53. e subject to change without prior notice ae heatingzone data 2 heating system radiator Q heatingzone data 2 remote control none KN O LD heatingzone data 2 remote control w display Y Heating zone data n Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu remote control appears The display shows the selected submenu Hold down Display and select the desired value with the dial here w display Turn the dial to with display if the selected heating zone has been assigned to the MEC2 The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting remote control none none w o display w display Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 47 Ln Heating zone data 11 8 Maximum room effect This function will only appear if a remote control has been selected but will not be shown for room thermostat heating systems The maximum room effect limits the effect of the actual room temperature room temperature hook up to the set supply temperature This value determines
54. eating zone 5 m Heating zone 6 Heating zone 7 Heating zone 8 Relay test m Heating zone 0 Heating zone 1 m Heating zone 2 Heating zone 3 Heating zone 4 Heating zone 5 Heating zone 6 m Heating zone 7 Heating zone 8 DHW Sub station LCD test Error Monitor m Heating zone 0 m Heating zone 1 Heating zone 2 Heating zone 3 Heating zone 4 m Heating zone 5 Heating zone 6 m Heating zone 7 Heating zone 8 DHW Sub station Version Control panel reset Fault log Service call Fig 1 Setting parameters and display data Buderus 8 Logamatic 4323 Technical specifications are subject to change without prior notice M Settings for control panel Controls and MEC2 remote control Ee 4 Controls and MEC2 remote control 4 1 Control panel controls amp N 6 720 618 328 08 1RS Fig 2 Control panel interface standard delivery 1 On Off switch 2 Connector for external service equipment 3 L1 L2 fuses 6 720 618 328 09 1RS Fig 3 Modules installed Slot 1 e g FM442 heating zone 1 heating zone 2 Slot 2 e g FM442 heating zone 3 heating zone 4 Slot A ZM433 supply for external heat sources heating zone 0 Slot B MEC2 CM431 MEC2 remote
55. ed The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here loading once 80 Logamatic 4323 Technical specifications are subject to change without prior notice The display shows the set value DHW data Dj u t exterhal cont ct Release Display to save your inpu WF1 3 loading once Press Back to return to the next level up Input range Factory setting external contact loading once none disinfection none Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 81 12 DHW data 12 9 Selecting and setting thermal disinfection If you select the thermal disinfection function the DHW is brought to a temperature 158 F 70 C once or several times a week This is high enough to kill off germs e g legionella bacteria The tank primary pump and DHW recirculation pump run constantly during the thermal disinfection process If you have selected thermal disinfection yes thermal disinfection starts according to factory settings or your own preferences Thermal disinfection is indicated by LED on the FM441 module You can adjust the factory settings for thermal disinfection via additional menus USER NOTE The thermal disinfection function is not shown if thermal disinfection was previously selected with the external contact WF 1 3 function
56. ed Current DHW FM441 function module defective hand switch is set to AUT temperature is below 104 F More DHW is used than is heated Check function of sensor and tank 40 C primary pump Replace FM441 module Check sensor connection on DHW storage tank DHW warning There is a constant attempt to fill Constant drawing or system leak Stop any leaks the DHW storage tank Manual switch not set to AUT Check whether manual switch is DHW priority is switched off once set to AUT thisfaultmessage appears Sensor defective or not connected Check sensor connection and Sensor incorrectly mounted values Primary pump incorrectly connected Check primary pump function e g or defective with a relay test gt Chapter 15 Module or control defective Replace sensor or module disinfection Thermal disinfection has been Water draw too great during the interrupted disinfection period Boiler output is temporarily insufficient due to heat drawn by other consumers e g heating zones Sensor defective or not connected or primary pump defective Module or control defective Select a time for thermal disinfection when there is no other demand heat Check sensor and primary pump function replace if necessary gt Chapter 15 If necessary replace module or control panel Tab 3 Fault table Buderu
57. ed briefly If the MEC2 is installed in the control panel or wall retainer it automatically detects the control panel to which it is connected automatic detection It is not necessary to select the control panel Different displays are shown depending on the application Ex works MEC2 installed in a control panel If a brand new MEC2 has been installed in the control panel and the connections with the control panel have been established data is immediately downloaded from the control panel The display shows actual data reading from control panel MEC2 installed in another control panel If the MEC2 contains a software version that is not able to recognize this type of controller the display shows unknown controller Remove the MEC2 from the control panel and replace it with an MEC2 with the correct software version Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 21 Le Commissioning the MEC2 remote control MEC is initializing connection with control module address XX established other controller model night button receive data reading from control panel Caution other controller automatic button send night button receive Buderus MEC2 with set parameters installed in control panel After the MEC2 has been installed in the control panel the two adjacent displays will initially be shown again a Alternative controller model
58. ek disinfection Tuesday i Q DHW data day of week disinfection Sunday Y Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until submenu day of week disinfection appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here Sunday The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting day of week disinfection Monday Sunday Tuesday daily Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 85 12 DHW data 12 12 Setting time of day for disinfection The time of day for disinfection can be set with the time disinfection function USER NOTE The time disinfection function is not displayed if thermal disinfection was previously set using the external contact WF1 3 function DHW data DHW yes DHW data time disinfection 01 00am xg O DHW data time disinfection 06 00pm Y aO gl amp Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a
59. eration of the system in your country USER NOTE All electrical components must be approved in the USA and Canada This product has been tested and certified and meets applicable standards for the US and Canadian markets 1 4 Key to symbols Two levels of danger are identified and signified by the following terms WARNING RISK OF LIFE Identifies possible dangers emanating from a product that might cause serious injury or death if appropriate care is not taken RISK OF INJURY SYSTEM DAMAGE B Indicates a potentially dangerous situation that could cause minor or moderately serious injuries or damage to property CAUTION 1 5 Please observe these notes USER NOTE Tip for optimum use of equipment and adjustment as well as useful information Only use the control panel for the purposes for which it is intended and only use if it is in perfect working order Read the service manual carefully before starting work on the control panel WARNING Make sure that all electrical work is carried out by a trained contractor RISK OF FATAL INJURY due to electric shock Before opening the control panel Isolate all poles of the power supply and secure against accidental reconnection RISK OF SCALDING WARNING Risk of scalding from domestic hot water temperatures over 122 F 50 C and during thermal disinfection from hot water Install a thermostatic tempering valv
60. erature is set higher than 122 F 50 C Do not draw off DHW unmixed Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until submenu range to appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 176 F 80 C The display shows the set value DHW data Release Display to save your input range to 176 F Sa Press Back to return to the next level up Input range Factory setting range to 140 F 176 F 60 C 80 C 140 F 60 C Buderus 74 Logamatic 4323 Technical specifications are subject to change without prior notice DHW data EB 12 3 Selecting switching optimization 5 a Nian DHW data DHW yes O DHW data optimization start optimiz O E no j Q a C If you select the optimization function DHW heating will begin prior to the actual start point The control panel calculates the start time taking into consideration the residual DHW storage tank heat and the start of heating for the heating zones so that the DHW temperature is reached at the time you have selected time switch Call up the service level general data appears as the first main menu Turn the dial u
61. et Set the corresponding function the manual switch of a function module manual switch to AUT module to AUT service No influence on control The period set until the next Carry out maintenance and then date characteristics maintenance has expired reset the service call Tab 3 Fault table Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 105 20 Monitor data 20 Monitor data Using the act system data menu you can display the set and actual values The menus described in these instructions relate exclusively to the Logamatic 4211 control panel with the most commonly used FM441 and FM442 modules Some display values are separated by a slash The number in front of the slash specifies the set value of each corresponding parameter and the figure after the slash is the actual value You can display data for the following components if installed Heating zones DHW Substation Monitor data of other installed modules 20 1 Heating zone monitor data Buderus 106 service level act system data DISPLAY heating zone 0 DISPLAY heating zone 2 Using the monitor menu heating zone you can display the data for one heating zone Call up the service level general data appears as the first main menu Turn the dial until main menu act system data appears The display shows
62. ge WF1 2 0 12 8 External contact WF1 3 22 000 12 9 Selecting and setting thermal disinfection 12 10 Setting disinfection temperature 12 11 Setting day of week for disinfection 12 12 Setting time of day for disinfection 12 13 Daily heating ate ccs ce we aK ore ele Bae eo oe Se ee ee ao 12 14 Selecting the recirculation pump 12 15 Setting the recirculation pump intervals Logamatic 4323 Technical specifications are subject to change without prior notice Buderus BE Contents 13 Substations 5 654605 34 00 35 55 04 04 hed 5 SRE SESR oo ORs ees 91 13 1 Setting the minimum warm up temperature 200022 22a 92 13 2 Setting the maximum warmuptime 02 0000 eee ee eee 93 13 3 Setting boiler raising du s2see ee dg bea gaeeeaa deo se ieoeee Sa4 eo oe 94 14 Characteristic heating curve 0 000002 95 15 Running relay test 00 02 es 96 16 Multi boiler systems 00 0002 99 17 Carrying outanLCDtest 0 0 02 0 02 e es 100 18 Fa lt log 524025 eee er ee ade eee eee eset ee wnat eee ee res 101 19 Fa lt e iaa a Av ee ee 103 20 Monitor datas 60 2 265245556 aana aa 0 bbb aS 5s 04558654 106 20 1 Heating zone monitor data 2 6 ee 106 20 2 DHW monitordata oc ins Sse te ten eee SES eE SRO SEER OES e BE 108 20 3 Substatio
63. gzone data 2 name heatingzone heating zone e heatingzone data 2 y heating system floor Heating zone data n Instead of the description heating zone no you can select a different designation from the default list Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu name heatingzone appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here floor The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting name heatingzone heating zone apartment floor bathroom pool office basement building heating zone Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 41 Ln Heating zone data 11 3 Adjusting base point temperature heatingzone data 2 heating system radiator O heatingzone data 2 heating system low level Q heatingzone data 2 base point temp 86 F j Q heatingzone data 2 base point temp 90 F This function will only be displayed for l
64. her shutdown temperature 46 Setback time oaa aa a 57 Setting addresses 12 Setting the control panel address 12 Slab magie 2 4 m u aa Se ee ee Ee aval 68 Software version 200 21 Stand alone control panel 12 Standard display 26 Starttime 2208 57 Sub station 2 ee ee 12 91 Submenu 00000202 eee 25 Supply function 15 Supply sensor 22 4 91 Supply temperature 44 45 Terminator 2 2 2 2 000000 2 eee 13 Thermal disinfection temperature 84 Thermostatic valves 20 56 Type of setback 49 U terminals s sa cosco ea 16 V VOISION oui ae G4 doe ele ele ew aR He Ad 111 ZM439 cbs 4 ake BA Ga oR eu ae 14 ZM433 central module 14 91 Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 119 United States and Canada Bosch Thermotechnology Corp 50 Wentworth Avenue Londonderry NH 03053 Tel 603 552 1100 Fax 603 584 1681 www buderus net U S A Products manufactured by Bosch Thermotechnik GmbH Sophienstrasse 30 32 D 35576 Wetzlar www buderus de Bosch Thermotechnology Corp reserves the right to make changes without notice due to continuing engineering and technological advances Buderus
65. ial until submenu drying slab setback appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 18 F 10 C The display shows the set value Release Display to save your input drying slab setback 18 F Input range Factory setting setback 2 F 18 F 1 C 10 C 9 F 5 C Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 71 Set setback time By setting the lowering parameter you determine in which daily cycle the temperature for drying the drying slab should be set back Turn the dial until submenu drying slab lowering appears Q The display shows the selected submenu heatingzone data 2 drying slab lowering daily Hold down Display and turn the dial until the desired value appears AFN here every 5th day The display shows the set value heatingzone data 2 drying slab lowering every 5th day Release Display to save your input Press Back to return to the next level up Input range Factory setting Setback in daily cycles none daily daily every 2nd day every 3rd day every 4th day every 5th day Buderus 72 Logamatic 4323 Technical specifications are subject to change without prior notice 12 DHW data DHW data EB In its standard version the Logamatic 4323 control panel i
66. imary pump Sensor temperature FB hotter than FZB Tank primary pump PS on FB colder than FZB Tank primary pump PS off Call up the service level general data appears as the first main menu Turn the dial until the main menu sub station appears Press Display to call up a submenu here minimum warm up temp The display shows the selected submenu Turn the dial until submenu maximum warm up time appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 60min The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting maximum warm up time 10 min 60 min 30 min Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 93 13 Substations 13 3 Setting boiler raising a C 6 sub station minimum warm up temp o sub station raise boilr temp off t Q sub station raise boilr temp 18 F gt This menu will only appear when operating the Logamatic 4323 control panel as a substation address gt 1 The value entered here will be added to the heat demand of the control panel and thereby increases the demand temperature This setting is recommended for compensating temperature losses in systems with long supply lines Call up
67. ion type of setback room setback room setback outdoor setback shut down setback Buderus With setting vacation outdoor setback the dial also takes you into the menu where you set the temperature between 4 F 20 C and 50 F 10 C 52 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 12Stopping setback at low outdoor temperatures This feature allows interruption of setback when the actual temperature falls below a selected adjusted outdoor temperature to prevent the living space cooling down excessively e USER NOTE Setback will not be blocked in manual mode or in vacation mode aQe heatingzone data 2 heating system radiator C heatingzone data 2 no setback below outdoor t disabled aN gt O DPD Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu no setback below outdoor t appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 32 F 0 C The display shows the set value heatingzone data 2 ipj u i no setback Release Display to save your inp
68. ired if the substation is physically far from the heat source Otherwise the system supply temperature will be transferred by the master control panel via the ECOCAN BUS Line losses are compensated if the substation is physically far from the heat source by setting a boiler temperature rise against the set control panel value To support the other supply pumps the supply pump may also be connected in case of long line runs USER NOTE If a cascade or strategy module FM456 FM457 FM458 is installed in the control panel that module will control the boiler system address 0 or 1 In that case set the minimum heat up temperature to off Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 91 13 Substations 13 1 Setting the minimum warm up temperature service level sub station sub station minimum warm up temp 122 F t Q sub station minimum warm up temp 140 F This menu will only be displayed by the Logamatic 4323 control panel if address 0 or 1 has been selected The heat consumers will only be supplied with heat if the set temperature has been exceeded or no later than after the time set up under maximum warm up time has expired Call up the service level general data appears as the first main menu Turn the dial until the main menu sub station appears The display shows the selected main menu Press Dis
69. is calculated from these values PF C 212 100 r TA o a RS CA EGE Geer AN ce 140 60 T r a a test steel Y mug A m e a Lo 68 20 T 2A 6 720 618 328 05 1RS Fig 16 U terminals 3 and 4 x Input voltage in V factory setting y Set point boiler temperature in F C The start value start point of the curve is set to 0 6 V for a positive curve Fig 16 shows the factory setting Call up the service level general data appears as the first main menu Press Display to call up a submenu here min outdoor temp The display shows the selected submenu Turn the dial until submenu temperature OV corresp to or temperature 10V corresp to appears Hold down Display and turn the dial until the desired set value appears here 41 F 5 C The display shows the set value Release Display to save your input Press Back to return to the next level up 36 Logamatic 4323 Technical specifications are subject to change without prior notice General data oo Turn the dial until submenu temperature 10V corresp to appears O eN Hold down Display and turn the dial until the desired set value appears here 194 F 90 C The display shows the set value general specs Release Display to save your input temperature 10V corresp to 194 F Input range Factory setting temperature 0 V 41 F 210
70. is only dependent on the actual room temperature A remote control must be installed in the room The heating system is switched off if the room becomes too hot Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 39 ar Heating zone data 11 1 Heating system selection service level heating zone 2 heatingzone data 2 heating system radiator i Q heatingzone data 2 heating system floor gt Example You want to set floor for submenu heating system in main menu heating zone 2 Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 The display shows the selected main menu Press Display to call up a submenu here heating system The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here floor The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting heating system none radiator radiator baseboard floor constant low level room thermostat Buderus 40 Logamatic 4323 Technical specifications are subject to change without prior notice 11 2 Renaming heating zone heatingzone data 2 heating system radiator heatin
71. is switched to zero volt The control functions continue to operate Current functions are indicated by LEDs Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 19 Ss Modules and their functions 5 5 FM442 function module accessory The FM442 module controls two independent heating zones with mixer Several of these modules can be used in one control panel The manual switches on the module only have service and maintenance functions and only affect 120 V outputs If the manual switches are not set to automatic a corresponding message appears on the MEC2 remote control and the fault indicator lights up USER NOTE Never use the manual switches to shut down the heating system during temporary absence Use the vacation function for this purpose gt operating instructions of the Logamatic Fig 14 FM442 4323 control panel Display General fault e g on site faults sensor faults external faults The control functions remain operational in manual wiring faults internal module faults mode manual mode Fault messages appear as plain text on the MEC2 remote control Heating zone function LEDs for the functions Manual switch heating zone a Display A Mixing valve opening hotter on le e g for heating zone 1 and 2 Display y Mixing valve closing colder Display T Heating zone WWSD enabled USER N
72. n Display and turn the dial until the desired value appears here 4 F 2 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting offset 9 F 9 F 5 C 5 C 0 F 0 C Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 55 Ln Heating zone data 11 15 Automatic adaptation heatingzone data 2 heating system radiator Q heatingzone data 2 auto adaptation no t Q heatingzone data 2 auto adaptation yes Y This function will only appear if radiator baseboard or floor has been selected as the heating system The auto adaptation is not activated at the factory Where a remote control with room temperature sensor is installed in the room the heating curve is automatically adjusted to the building by monitoring the room and supply temperature Prerequisites are a representative room with reference temperature completely open thermostat valves in the room no continuously changing outside heat influence Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial u
73. n monitor data 2 002 ee ee 110 21 Display version 02 2 22255682 242284104 8e00S4 84662996 20 8h G42 111 22 Selecting the control panel 0 0 000s 112 23 Reset to the factory settings 0 0020s 113 23 1 Resetting all control panel parameter settings s sosoo 22s 113 23 2 Resetting the fault log 2 662 n ee ee ee ee 114 23 3 Resetting the service call 2 6 es 115 24 Sensor characteristics 000 002 cece eee 116 25 Ndek eee evoke reeetae sce ee eke ee beak E ea ae hea 118 Buderus 4 Logamatic 4323 Technical specifications are subject to change without prior notice 1 Safety 1 1 About this manual This manual contains important information regarding the safe and appropriate commissioning and servicing of the Logamatic 4323 control panel This manual is intended for heating contractors who due to their training and experience are knowledgeable in handling heating systems and domestic hot water installations Only carry out service measures yourself if you have this technical expertise Explain to the customer the function and operation of the appliance 1 2 Intended use The Logamatic 4323 control panel is designed exclusively to control heating systems in apartment buildings residential complexes and other types of buildings 1 3 Standards regulations and directives USER NOTE Observe all regulations and standards applicable to installation and op
74. n time 10 sec 600 sec 120 sec Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 63 Lr Heating zone data 11 22 Boiler temperature increase a OQ 6 heatingzone data 2 heating system radiator Q heatingzone data 2 boiler temp rise heatingzone data 2 boiler temp rise 18 F Y If a heating zone is controlled with an actuator a higher set value should be set for the boiler than the normal set value for the heating zone The value boiler temp rise corresponds to the temperature differential between the set boiler temperature and the set heating zone temperature Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu boiler temp rise appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 18 F 10 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting boiler temp rise 0 F 36 F 0 C 20 C 9 F 5 C Buderus 64 Logamatic 4323 Technical specifications are subject to change without prior
75. ng system The display shows the selected submenu Turn the dial until submenu external day night auto is displayed The display shows the selected submenu Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 65 heatingzone data 2 external day night auto via WF 1 2 3 gt Hold down Display and select the desired value with the dial here via WF 1 2 3 The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting external day night auto none none via WF 1 3 via WF 1 2 3 Buderus 66 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 24External pump fault message a OQ 6 heatingzone data 2 heating system radiator Q external fault circulator heatingzone data 2 none heatingzone data 2 external fault circulator via WF1 2 The function is disabled at the factory You can select whether fault messages for a pump are displayed in this menu item You can connect an external zero volt fault relay to terminals WF1 and WF2 If the contact is open a fault message is displayed You can select between 1 none 2 Pump fault message via WF 1 2 If an input was made under the menu item external day night auto via WF 1 2 3 this
76. notice 11 23 External changeover Heating zone data air Using the external changeover function you can use an on site switch at terminals WF1 2 3 pink to change the operating mode of a heating zone This is where you configure this control panel input The menu item external changeover will only be displayed if none was selected under parameter remote control The menu item is also not shown if the room thermostat heating system is selected because this requires a remote control The function is disabled at the factory Two changeover functions can be selected Changeover 1 Day night via terminals WF1 and WF3 Contacts WF1 and WF3 closed Day mode Contacts WF1 and WF3 open Night mode Changeover 2 Day night aut via terminals WF1 WF2 and WF3 Activation is only possible is terminals WF1 and WF2 are not assigned by the external pump fault message e Contacts WF1 and WF3 closed Day mode Contacts WF1 and WF2 closed Night mode All contacts open Automatic mode USER NOTE Day mode will be run constantly if both contacts are simultaneously closed by mistake aQe heatingzone data 2 heating system radiator Q heatingzone data 2 external day night auto none Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heati
77. ntil main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until submenu optimization start optimiz appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here yes The display shows the set value DHW data ipi u optimization Release Display to save your input start optimiz yes Press Back to return to the next level up Input range Factory setting optimization yes no no Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 75 12 DHW data 12 4 Selecting residual heat use a CD 6 DHW data DHW yes DHW data utlz leftovr ht yes t DHW data utlz leftovr ht no Y If you select the utlz leftovr ht function you can also utilize the residual boiler heat for heating the storage tank Residual heat use yes If you select utlz leftovr ht yes the control panel calculates the shutdown temperature of the burner and the primary pump runtime until the storage tank is fully heated up using the residual boiler heat The burner is switched off before the set DHW temperature is reached The tank heating pump continues to operate The control panel calculates the run time of the primary pump between 3 and 30 minutes to heat the storage tank Residual heat
78. ntil submenu auto adaptation appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here yes The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting auto adaptation no no yes Buderus 56 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 16Setting switch optimization The function optimization for is not enabled at the factory Install a remote control with room temperature sensor to enable the optimization function The following variations are possible Heat up starts before the actual switching time if start up has been selected The control panel calculates the start time so that the set room temperature is achieved at the set start point At shut down the system begins setback where possible prior to the actual setback time to save energy If a room cools down unexpectedly or suddenly the stop optimization is terminated and heating continues normally up to the programmed setback time Both optimization versions are used when startup shutdown has been enabled Switch optimization is disabled if none is selected USER NOTE As the start optimization is limited to 240 minutes start optimization is frequently inappropriate for systems
79. or 1 Outdoor temperature sensor curve 2 Sensor curves boiler water supply and DHW temperature Buderus 116 Logamatic 4323 Technical specifications are subject to change without prior notice Sensor characteristics EJ R kQ 1 22 20 18 16 14 12 10 41 5 50 10 59 15 68 20 77 25 86 30 F C R kQ 1000 100 10 32 0 122 50 212 100 302 150 392 200 482 250 F C 6 720 618 328 07 1RS Fig 19 Room temperature and emission temperature sensor 1 Room temperature sensor curve 2 Flue gas temperature sensor curve Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 117 Index 25 Index A Actual room temperature 55 Adaptation 0 2004 107 Adjustable parameter 8 Alternative type of control panel 22 Base point 5 2 02005 39 Base pointtemperature 42 Basement 2 2 25005 41 Building type aaa a 29 Callingupmainmenus 24 Calling up submenus 25 Calling up the service level 26 Circulator aooaa 14 CM431 controller module oaa 12 Commissioning oaa a 21 Constant aoaaa a 39 Controller parameter 113 Controls 2 a ea aa a a a 9 24 Convector aoaaa 00002 eee 39 D Demand temper
80. ow level heating systems By setting the heating system low level you have determined a straight heating curve using the base point and design temperatures With the base point temperature you determine the start of the heating curve The base point temperature is applicable for an outdoor temperature of 68 F 20 C Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here low level The display shows the set value Release Display to save your input Turn the dial until submenu base point temp appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 90 F 32 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting base point temp 68 F 176 F 20 C 80 C 86 F 30 C Buderus 42 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 4 Setting design temperature aC 6 heatingzone data 2 heating system radiator Q heatingzone da
81. p shutdown in section 11 16 you can enter from when setback mode should begin Change the setting only if necessary Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu shutdown optimizationtime appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 30min The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting shutdown optimizationtime 10 min 60 min 60 min Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 59 Lr Heating zone data 11 18 Setting frost protection temperature a Qo heatingzone data 2 heating system radiator Q heatingzone data 2 freezeprotect at 34 F aa 3 0 heatingzone data 2 freezeprotect at 28 F gt The frost protection temperature only needs to be changed in special cases The circulation pump is automatically switched on as soon as the preset outdoor temperature threshold is reached Call up the service level general data appears as the first main menu Turn
82. play to call up a submenu here minimum warm up temp The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 140 F 60 C The display shows the set value Release Display to save your input Press Back to return to the next level up eg USER NOTE If off has been selected any possibly installed buffer or the existing start up time of a heat source not controlled by the control panel will then not be taken into consideration Input range Factory setting minimum warm up temp off 122 F 50 C 34 F 140 F 1 C 60 C Buderus 92 Logamatic 4323 Technical specifications are subject to change without prior notice Substations 13 13 2 Setting the maximum warm up time sub station minimum warm up temp 122 F Q sub station maximum warm up time 30min i Q Sub station maximum warm up time 60min Y This menu will only be displayed by the Logamatic 4323 control panel if address 0 or 1 has been selected and the minimum warm up temperature and therefore also the warm up time have been enabled Here set the maximum time after which the heating zone pumps are started even if minimum warm up temp has not been achieved within maximum warm up time In addition the temperatures at the FB and FZB sensors are evaluated for control of the PS tank pr
83. play shows the selected submenu RESET fault log LLL Ca Press and hold down Display The blocks in the last line disappear one after another The fault log is reset after RESET the final block has disappeared Reset will be terminated if you release the button before all blocks have disappeared After implementing a reset the fault log display automatically reverts to the next level up LLL When terminating a reset press Back to return to the next level up Buderus 114 Logamatic 4323 Technical specifications are subject to change without prior notice Reset to the factory settings 23 23 3 Resetting the service call Reset the service call after maintenance has been completed This means that the service call is no longer shown when the flap is closed e USER NOTE The maintenance interval is restarted by resetting the service call Note that in the case of service calls by date the next maintenance date is reset to one year ahead a G RESET settings controller HHI RESET service call HNI RESET fault log E Call up the service level general data appears as the first main menu Turn the dial until main menu reset appears Briefly press Display to call up a submenu here settings controller All settings may be lost if you press for too long The display shows the selected submenu Turn the dial until submenu service call appears The displa
84. rature for all connected heating zones Jumper plug J 1 The set point can also be output as a 0 20 mA signal The jumper J 1 should then be repositioned from 5 to R o Modules and their functions E 32 50 68 86 104 122 140 158 176 194 212 0 10 20 30 40 50 60 70 80 90 100 PF C x 6 720 618 328 03 1RS Fig 11 U terminals 3 and 4 x Set supply temperature in F C factory setting y 0 10 V input in V Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 17 Ss Modules and their functions 5 4 FM441 function module accessory The FM441 module controls one heating zone and one DHW heating consumer The manual switches on the module only have service and maintenance functions and only affect 120 V outputs Only install this module in the control panel once If the manual switches are not set to automatic a corresponding message appears on the MEC2 remote control and the fault indicator lights up USER NOTE ai Never use the manual switches to shut down the heating system during temporary absence Use the vacation function for this purpose gt operating instructions of the Logamatic 4323 control panel Display General fault e g on site faults sensor faults external faults F wiring faults internal module faults
85. recirculation pump intervals Interval operation reduces the operating costs of the recirculation pump You can set DHW to be immediately available at the draw off points using the recirculation per hour function The set interval applies during the period when the time program enables the recirculation pump This may be the factory set recirculation pump program your own recirculation pump program a connection to the heating zone switching times In constant mode the recirculation pump operates continuously when in day mode and is switched off in night mode Example Your own time program was created to start the recirculation pump between 5 30 am 10 00 pm 05 30 h 22 00 h with setting recirculation per hour 2 cycles The circulation pump is run at 5 30 am 05 30 h for 3 minutes at 6 00 am 06 00 h for 3 minutes at 6 30 am 06 30 h for 3 minutes etc until 10 00 pm 22 00 h Call up the service level general data appears as the first main menu CD O Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu DHW data DHW yes O Turn the dial until submenu recirculation per hour appears The display shows the selected submenu DHW data recirculation per hour 2 cycles Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 89
86. rol address allocated address see BFU remote control documentation Remote control or associated module is defective Replace remote control or module ECO BUS No effect on the control The rotary encoder on the CM431 Check setting of rotary encoder receive characteristics behind the MEC2 or boiler display gt Chapter 5 1 has incorrect address Hook switch on NM482 is incorrectly Check hook switch positioned gt Chapter 5 2 no master System operates with minimum By mistake there is no master control Check addresses of all control outdoor temperature panel address 1 in the network panels in the network On the master control panel CM431 must be set to address 1 gt Chapter 5 1 Connecting cable to master control Check function of connecting panel broken cable Master control panel address 1 is Check master control panel and switched off or defective replace if required BUS BUS communication no longer Multiple identical addresses are Check the addresses of all BUS addr confl possible present subscribers address settings gt Chapter 5 1 Addr conflict x Functions of module with address conflict can no longer be implemented All other modules in control panel and ECOCAN BUS continue to function normally Module must not be installed into this control panel e g 2 x FM441 in one control panel or FM447 in Logamatic 4323
87. rying slab increase by appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 18 F 10 C The display shows the set value Release Display to save your input drying slab increase by 18 F Input range Factory setting increase by 2 F 18 F 1 C 10 C 9 F 5 C Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 69 Q heatingzone data 2 drying slab increase daily KN O heatingzone data 2 drying slab increase every 5th day Heat up time By setting the increase parameter you determine in which daily cycle the temperature should rise to dry out the drying slab Turn the dial until submenu drying slab increase appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here every 5th day The display shows the set value Release Display to save your input Input range Factory setting Increase in daily cycles daily every 2nd day every 3rd day daily every 4th day every 5th day Q heatingzone data 2 drying slab max temperature 113 F KN 2 0 heatingzone data 2 Setting the maximum temperature Here you can enter the maximum temperature for drying slab drying Turn the dial until submenu drying slab max temperature appears
88. s Logamatic 4323 Technical specifications are subject to change without prior notice 103 19 Fault All control functions requiring data exchange via the ECOCAN BUS can no longer be implemented Each address must only be assigned once in the ECOCAN BUS network Fault Effect on control characteristics Possible causes of fault Remedy remote Because no actual room Remote control incorrectly connected Check remote control function and control x temperature is available the or defective connection effects of the following features Replace remote control or module are disabled room effect start _ Incorrect address allocated to remote Check remote control address and stop optimization automatic control see BFU remote control adaptation documentation Remote control cable damaged by a Check connecting cables drill or is broken communica Because no actual room Remote control incorrectly connected Check remote control function and tion HZx temperature is available the or defective connection effects of the following features _ By mistake neither a BFU remote _ Select the correct remote control in are disabled room effect start control nor an MEC2 was selected for the MEC2 under remote control ae a optimization automatic this heating zone in the MEC2 gt Chapter 11 7 adaptation f paio Remote control has an incorrectly Check remote cont
89. s as the first main menu service level general data Press Display to call up a submenu here min outdoor temp The display shows the selected submenu general specs min outdoor temp 14 F Hold down Display and turn the dial until the desired value appears here 10 F 12 C Q The display shows the set value general specs Release Display to save your input min outdoor temp 10 F Press Back to return to the next level up Press Back several times to return to the standard display The control panel automatically reverts to the standard display if no button is pressed for some time or if the flap is shut Buderus 26 Logamatic 4323 Technical specifications are subject to change without prior notice 9 General data USER NOTE i In main menu general data you can adjust values for the submenus listed relating to the heating system and the characteristics of the house in question The following pages explain how to adjust values relating to the submenus Ce i 4 TD Call up the service level general data appears as the first main menu Press Display to call up a submenu here min outdoor temp The display shows the selected submenu general specs min outdoor temp 14 F O You can scroll through the following submenus by turning the dial min outdoor temp building type remote control fa
90. s not equipped with any DHW heating function The following details regarding DHW data refer to the FM441 function module accessory 12 1 Selecting the DHW storage tank o a Oe service level DHW a DHW data DHW DHW data DHW no Y Here you can log the DHW storage tank in and out if a DHW module is installed If a cascade module is installed instead of a DHW module you can select the type of hydraulic connection of the DHW storage tank Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears The display shows main menu DHW Press Display to call up a submenu here DHW The automatically recognized DHW storage tank will be preset on the display Hold down Display and turn the dial until the desired value appears here no The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting DHW yes yes no Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 73 12 DHW data 12 2 Set temperature range WARNING DHW data DHW yes O DHW data range to With this function you can set the upper limit for the desired DHW temperature RISK OF SCALDING from hot water There is a risk of scalding if the desired DHW temp
91. set to AUT The control panel operating instructions contain a setup report for the use by the system operator Record the settings made during initial setup and the layout of the heating zones in the setup log 1 7 Cleaning the control panel Clean the control panel with a damp cloth only 1 8 Disposal Dispose of the control panel packaging in an environmentally responsible manner Electronic components do not belong in household waste Dispose of a defunct control panel in an environmentally responsible manner through an approved organization When disposing of the control panel remove the lithium battery from the CM431 module inside the control panel and dispose of it separately Logamatic 4323 Technical specifications are subject to change without prior notice Product description and scope of delivery 2 2 Product description and scope of delivery 2 1 Product description The digital Logamatic 4323 control panel can be used as a stand alone heating zone controller managing the heat generated by a manually or indirectly fired buffer tank or as a substation for the demand dependent control of a supply pump The heating zone control function is part of the standard equipment level one heating zone with actuator It may be extended with four function modules to match the requirements of a specific heating system For function extension a combination with other digital control panels e g Logamatic 432
92. submenu here DHW The display shows the selected submenu Turn the dial until submenu time disinfection appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 06 00pm 18 00 The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting time disinfection 12 00 am 11 00 pm 00 00 23 00 01 00 am 01 00 Buderus 86 Logamatic 4323 Technical specifications are subject to change without prior notice 12 13 Daily heating DHW data DHW yes O DHW data daily heat up disabled Q aQ g DHW data EB When daily heat up is set the DHW which may include a solar storage tank if installed is heated to 140 F 60 C once a day to prevent legionella bacteria from multiplying in the DHW The time when the storage tank is heated can be adjusted Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial daily heat up appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 06 00pm 18 00 The display shows the set value ay dala
93. ta 2 design temp 167 F ow gt O r heatingzone data 2 The design temperature is the supply temperature at the adjusted minimum outdoor temperature gt Chapter 9 1 The following applies to low level heating systems Set the design temperature at least 18 F 10 C higher than the base point temperature Changing the design temperature allows the heating system to operate with a flatter or steeper heating curve This function will not be displayed with room thermostat heating systems Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu design temp appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 149 F 65 C The display shows the set value Release Display to save your input design temp 149 F T Press Back to return to the next level up Input range Factory setting design temp 86 F 194 F 167 F 75 C 30 C 90 C for radiator oaseboard constant low level 113 F 45 C for radiant floor heating systems Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 43
94. tdoor setback Km 2 0 heatingzone data 2 type of setback shut down gt Turn the dial until submenu type of setback appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here shut down The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting type of setback outdoor setback outdoor setback shut down setback room setback Buderus 50 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 10Setting outdoor setback temperature o a aQ heatingzone data 2 heating system radiator C heatingzone data 2 outdr setback at y heatingzone data 2 outdr setback at 34 F Y Enter the outdoor temperature at which the heating operation should change over from shut down to setback if you have selected outdoor setback as setback type Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu outdr setback at appears The display shows the selected submenu Hold down Displ
95. the maximum possible room temperature setback in those rooms that are supplied via the currently selected heating zone and where there are no remote control units installed USER NOTE Do not expose the MEC2 remote control or the BFU remote control to external heat sources such as lamps TV sets or alternative heat sources heatingzone data 2 heating system radiator Q heatingzone data 2 max room effect t heatingzone data 2 max room effect 9 F Y Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu max room effect appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 9 F 5 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting max room effect 0 F 18 F 0 C 10 C 5 F 3 C Buderus 48 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 9 Selecting setback type The following functions for reduced mode or night mode can be selected outdoor setba
96. the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu freezeprotect at appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 28 F 2 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting freezeprotect 4 F 34 F 20 C 1 C 34 F 1 C Buderus 60 Logamatic 4323 Technical specifications are subject to change without prior notice 11 19Setting DHW priority ae heatingzone data 2 heating system radiator heatingzone data 2 DHW priority heatingzone data 2 es Heating zone data air The circulation pumps of all heating zones are switched off while DHW is being heated if you activate the function DHW priority In mixed heating zones the mixer is moved towards Mixer closes colder Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu DHW priority appears The display shows the
97. the selected main menu Press Display to call up a submenu here heating zone 0 The display shows the selected submenu Turn the dial until submenu heating zone 2 appears The display shows the selected submenu Press Display Logamatic 4323 Technical specifications are subject to change without prior notice Monitor data 20 The set and actual values for the supply and room temperatures are MONITOR HZ2 displayed supply 140 138 ar l Room 68 66 The last line displays one of the following operating modes night mode alwys night mode alwys day mode always auto mode always automatic day vacation summer startopt stopopt slab DHW priority no setback Turn the dial to scroll through the heating zone monitor data Q Design temperature adaptation MONITOR ye This value displays the design temperature calculated by adaptation design 167 startopt 15min stopopt 30min Start optimization A calculated period by which the heating system starts its heating operation prior to the actual set point so that the set room temperature is reached by the actual start time Stop optimization A calculated period to commence an early setback to save energy Turn the dial to scroll through the heating zone monitor data Q Actuator Indicates the calculated controlling pulse in percent MONITOR HZ2 act pos 50 circulator off 0
98. the service level general data appears as the first main menu Turn the dial until the main menu sub station appears Press Display to call up a submenu here minimum warm up temp The display shows the selected submenu Turn the dial until submenu raise boilr temp appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 18 F 10 C The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting raise boilr temp off off 2 F 36 F 1 C 20 C Buderus 94 Logamatic 4323 Technical specifications are subject to change without prior notice Characteristic heating curve 14 14 Characteristic heating curve Qg service level heating curves heating curve heating zone 0 OT 50 32 14 ST 104 135 158 g Q heating curve heating zone 2 OT 50 32 14 ST 113 144 167 Using the heating curves menu you can display the current heating curves of the relevant heating zones The supply temperatures ST which depend on the outdoor temperature OT are displayed Call up the service level general data appears as the first main menu Turn the dial until main menu heating curves appears The display shows the selected main menu Press Display to call up a submen
99. ther a remote control for the heating zone is installed You can select No remote control Remote control with display MEC2 MEC heatingzones If remote control w display is selected for several heating zones these are grouped as MEC heatingzones Remote control without display BFU USER NOTE No remote control unit may be installed for constant heating zone systems or when external changeover has been enabled A remote control must be installed for the following functions that monitor the room temperature Night setback with room hold Max room effect Automatic adaptation Start optimization room thermostat heating system Buderus Explanation of MEC heatingzones The MEC2 can be installed in a reference room it then functions as a room sensor with display With the MEC2 you can control several heating zones simultaneously These are grouped together under the term MEC heatingzones The following functions can be run for the MEC heatingzones Operating mode switching Set point adjustments Set warm weather shutdown temperature Vacation function Party mode Pause function The heating zones grouped together under MEC heatingzones can for specific settings also be selected as primary zone The timer program PROG function is only available for each individual heating zone 46 Logamatic 4323 Technical specifications ar
100. trol panel will be displayed together with the Puppy sensor 2 beginning and end times of the fault b 11 20pm 10 13 e 11 45pm 10 13 The display will show no fault if the connected control panel has not recorded any faults O Turn dial and scroll through the recent fault messages Press Back to return to the next level up OQ Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 101 Fault displays The Logamatic 4323 can display the following faults if in addition to the ZM433 the most frequently used function modules FM441 and the FM442 are installed outdoor sensor Addr conflict x supply sensor x wrong module x DHW sensor unknown module x DHW cold inert anode DHW warning external fault disinfection insuff supply remote control x supply sensor FZB communication HZx manual XX ECO BUS receive service date no master BUS addr confl With the use of other modules additional fault messages are possible For information about these see the corresponding instructions Buderus 102 Logamatic 4323 Technical specifications are subject to change without prior notice 19 Fault Fault Effect on control characteristics Possible causes of fault Remedy outdoor The minimum outdoor The outdoor temperature sensor is Checks of the outdoor temperature
101. u Turn the dial until the automatic service call submenu appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here date The display shows the set value Release Display to save your input Turn dial one click clockwise Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 33 Hold down Display and turn the dial until the desired value appears N here 10 01 2008 The display shows the set value Release Display to save your input general specs service call on 10 01 2008 Press Back to return to the next level up USER NOTE i The service call is recorded in the fault log and can be transferred via the Logamatic telecontrol system The status of the service call can be checked in the act system data menu The service call can be reset in the reset menu Input range Factory setting automatic service call no no hours run date Buderus 34 Logamatic 4323 Technical specifications are subject to change without prior notice 9 7 O 10V input General data oo As soon as a module with 0 10 V input has been installed in the control panel the following screens appear as listed in the table below Module Name Temperature control Power control FM448 fault module x FM456 KSE 2 EMS x X CM431 V6 xx or higher
102. u here heating zone 0 The display shows the selected submenu Turn the dial until submenu heating zone 2 appears The display shows the selected submenu Press Back to return to the next level up Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 95 Le Running relay test 15 Running relay test Buderus 96 CAUTION With the relay test menu you can check whether you have correctly connected the external components e g pumps The displays depend on the installed modules Depending on the current operating conditions there may be a time delay between demand and display SYSTEM DAMAGE through disabled functions The heat supply of the heating system is not assured during the relay test All functions are disconnected from the control Exit this function after the relay test to prevent system damage With the FM441 and FM442 modules used most commonly in the Logamatic 4323 control panel the following relays can be called up Heating zone 0 9 Circulator Actuator DHW Tank primary pump Recirculation pump Substation Circulator Logamatic 4323 Technical specifications are subject to change without prior notice Running relay test 15 Relay test example Call up the service level general data appears as the first main menu o a Turn the dial until main menu relay test appears QO g
103. ult manual switch automatic service call 0 10V input Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 27 eg General data 9 1 Minimum outdoor temperature Ca wm D general specs min outdoor temp 14 F t O general specs min outdoor temp 10 F The minimum outdoor temperature is a statistically calculated average value of the coldest outdoor temperatures over the past few years It influences the gradient of the heating curve colder shallower heating curve hotter steeper heating curve PF C 176 80 158 70 140 60 122 50 TA 104 40 86 30 68 20 50 10 3200 14 10 4 20 T minA PF CC 6 720 618 328 04 1RS Fig 15 Heating curve adjustment Adjustment of gradient via design temperature and minimum outdoor temperature Tmina Minimum outdoor temperature Ta Design temperature supply temperature that should be achieved at min outdoor temperature 1 Setting design temperature 167 F 75 C minimum outdoor temperature 14 F 10 C base curve 2 Adjustment Design temperature 167 F 75 C minimum outdoor temperature 4 F 20 C Call up the service level general data appears as the first main menu Press Display to call up a submenu here min outdoor temp The display shows the selected submenu
104. unctions U terminals 1 4 External set values can be received or issued via the U terminals of the ZM433 central module BEBE USER NOTE nasa To avoid generating undefined input ae values never apply voltages greater than DINAT Ii 10 V to the 0 10 V input Fig 9 ZM433 view from the back 1 Jumper plug J 1 factory setting 0 10 V 2 U terminals U terminals 1 and 2 0 10 V input 3 Relay Via terminals U 1 and U 2 on the ZM433 central module a 0 10 V signal can be externally applied to provide a F C set value 194 176 80 This set value represents a further external heat 158 70 5 demand Higher set values e g from heating zones Lea continue to be taken into consideration oe lik y 104 40 86 30 USER NOTE 68 20 50 10 4 You can adapt the curve if necessary ae a gt Chapter 9 7 0 x V 6 720 618 328 02 1RS Fig 10 U terminals 1 and 2 x 0 10 V input in V factory setting y Supply reference temperature in F C Buderus 16 Logamatic 4323 Technical specifications are subject to change without prior notice U terminals 3 and 4 0 10 V output Via terminals U 3 and U 4 on the ZM433 central module a 0 10 V signal can be supplied externally to provide a set value This would be the maximum system supply tempe
105. use no If you select utlz leftovr ht no you will only use a small amount of residual heat The burner runs until the desired DHW temperature has been reached The storage tank primary pump runs on for 3 minutes after the burner has been switched off Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu Turn the dial until submenu utlz leftovr ht appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here no The display shows the set value Release Display to save your input Press Back to return to the next level up Input range Factory setting utlz leftovr ht yes yes no Buderus 76 Logamatic 4323 Technical specifications are subject to change without prior notice DHW data EB 12 5 Setting differential With differential you can determine at how many Fahrenheit F Kelvin K below the set DHW temperature the reloading of the storage tank begins Call up the service level general data appears as the first main menu Turn the dial until main menu DHW appears Press Display to call up a submenu here DHW The display shows the selected submenu DHW data DHW Turn the dial until submenu differential appears
106. ut below outdoor t 32 F S Press Back to return to the next level up Input range Factory setting no setback disabled disabled below outdoor t 22 F 50 F 30 C 10 C Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 53 EE Heating zone data 11 13Setting supply setback heatingzone data 2 heating system radiator heatingzone data 2 heating system constant nr Q heatingzone data 2 supply setback 54 F i Q Because no remote control can be connected to the constant heating system a setback entry for the setback and outdoor setback setback types can be made in this submenu item Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here constant The display shows the set value Release Display to save your input Turn the dial until supply setback appears The display shows the selected submenu Hold down Display and turn the dial until the desired value appears here 45 F 25 C The display shows the set value heatingzone data 2 Release Display to save
107. x 1 heating zone 1 DHW zone FM442 function module x 2 heating zones Modules FM443 JAE module xX Solar circuit FM445 function module x LAP LSP charging system FM448 function module 2 X Centralized fault message FM456 function module x3 KSE2 cascade 2 boilers FM457 function module x3 KSE4 cascade 4 boilers FM458 function module x2 3 Strategy module Tab 1 Modules and their functions 1 Only one DHW module per control panel 2 Module FM458 must not be installed together with module FM448 in one control panel 3 Module FM458 must not be installed together with module FM456 FM457 O Basic equipment X Optional equipment Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 11 Ss Modules and their functions 5 1 CM431 controller module Setting the control panel address Address settings gt Fig 5 1 for the Logamatic 4323 control panel are made on the CM431 module behind the MEC2 remote control Remove the MEC2 remote control You can now set the control panel address with a screwdriver gt Fig 5 HOUUUU Fig 5 Setting addresses Address Description 0 Stand alone control panel Set the address to 0 if the control panel operates as stand alone equipment factory setting 1 15 Each connected device must be given a different address if several devices are networked A fault message is displayed by the
108. y shows the selected submenu Press and hold down Display The blocks in the last line disappear one after another The service call is reset after the final block has disappeared Reset will be terminated if you release the button before all blocks have disappeared After implementing a reset the display automatically reverts to the next level up When terminating a reset press Back to return to the next level up Buderus Logamatic 4323 Technical specifications are subject to change without prior notice 115 24 Sensor characteristics 24 Sensor characteristics Isolate the heating system from the power supply Using the diagram you can check whether temperature before taking any readings and resistance correlate Fault test without room temperature sensor Remove the sensor terminals USER NOTE Check the resistance at the sensor lead ends using For all curves the sensor tolerance is up to an ohmmeter 3 77 F 25 C Check the sensor temperature with a thermometer R k9 1 80 60 40 20 5 15 14 10 23 5 32 0 41 5 50 10 59 15 R kQ 14 12 10 68 20 86 30 104 40 122 50 140 60 158 70 176 80 194 90 PF C 6 720 618 328 06 1RS Fig 18 Outdoor temperature sensor and boiler water supply DHW temperature sens
109. your input supply setback 45 F Press Back to return to the next level up Input range Factory setting supply setback 0 F 72 F 0 C 40 C 54 F 30 C Buderus 54 Logamatic 4323 Technical specifications are subject to change without prior notice Heating zone data air 11 14Room temperature offset heatingzone data 2 heating system radiator C heatingzone data 2 room temperature offset y OJE heatingzone data 2 room temperature offset N o T This setting is only recommended if no remote control has been installed inside the living space If the average actual temperature measured with a thermometer deviates from the set temperature for some time this function enables a matching of both values The calibration moves the heating characteristic curve at the same time The changes take effect after a time delay Example Displayed set room temperature 72 F 22 C Actual room temperature 75 F 24 C The set value lies 3 F 2 C below the actual value Call up the service level general data appears as the first main menu Turn the dial until main menu heating zone no appears here heating zone 2 Press Display to call up a submenu here heating system The display shows the selected submenu Turn the dial until submenu room temperature offset appears The display shows the selected submenu Hold dow

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