Buderus Logamatic 4323 Service Instructions Manual
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Buderus Logamatic 4323 Service Instructions Manual

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Logamatic 4323
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Read carefully prior
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Summary of Contents for Buderus Logamatic 4323

  • Page 1 Service instructions Control unit Logamatic 4323 For contractors Read carefully prior to commissioning and servicing...

  • Page 2: Table Of Contents

    ........43 Logamatic 4323 Subject to technical modifications.
  • Page 3 13.1 Setting the minimum heat-up temperature ......93 Logamatic 4323 Subject to technical modifications.
  • Page 4 ..........118 25.1 Logamatic 4323 control unit .

  • Page 5: Safety

    Please observe these notes Correct use Only operate the control units as intended and when The Logamatic 4323 control unit is designed exclusively they are in perfect working order. to regulate and control heating systems, for example in Carefully read these service instructions before residential complexes and other types of commercial carrying out any work on the control unit.

  • Page 6: Important Notes On Commissioning

    During commissioning, make a note in this record of all settings and heating circuit allocations. Cleaning the control unit Only clean the control unit with a damp cloth. Logamatic 4323 - Subject to technical modifications.

  • Page 7: Product Description And Standard Delivery

    Product description and standard delivery Product description and standard delivery Product description The digital Logamatic 4323 control unit can be used as a stand-alone heating circuit controller with monitoring of the heat provision from a manually or externally heated buffer cylinder or, as a substation, for the demand- dependent control of a feed pump.

  • Page 8: Setting Parameters And Display Data

    Heating circ. 7 Screed max. temp. Heating circ. 8 Screed max.time Screed Setback temp. Substation Screed Setback time Heating circuit 1, 2, 3 etc. see heating circuit 0 Fig. 1 Setting parameters and display data Logamatic 4323 Subject to technical modifications.

  • Page 9: Controls And Mec2 Programming Unit

    3 Slot 3: e.g. FM442 - heating circuit 5, heating circuit 6 4 Slot 4: e.g. FM441 - heating circuit 7, DHW/DHW circulation pump or heating circuit 7, heating circuit 8 (with module FM442 in slot 4) Logamatic 4323 Subject to technical modifications.

  • Page 10: Mec2 Programming Unit

    6 Enter the day of the week 14 Summer/Winter Time adjustment 7 Enter holidays 15 back to the standard display 8 Select standard display 16 Select a time switch program 17 Select heating circuits/DHW circuit Logamatic 4323 Subject to technical modifications.

  • Page 11: Modules And Their Functions

    Modules and their functions Modules and their functions All modules are shown here that are or can be fitted into your Logamatic 4323 control unit. Logamatic 4323 MEC2 programming unit CM431 controller module ZM433 central module Feed for external heat generation + heating circuit...

  • Page 12: Cm431 Controller Module

    Address 1 is a special setting, since the control unit with this address is the master. The master controls the boiler. Always connect the outside temperature sensor to the master. You may setup the Logamatic 4323 control unit as the master if an external heat source is operated via the Logamatic 4323 control unit.

  • Page 13: Nm482 Power Supply Module

    NM482 power supply module The factory setting is: 1 ECOCAN-BUS Gravity switch S1 open = terminator not fitted. 2 Gravity switch S1 (for terminator) factory setting: open Example of the terminator hook-up when several Buderus control units are connected. Logamatic Logamatic Logamatic...

  • Page 14: Zm433 Central Module

    LEDs for the following functions: Display "Mixer opens" (hotter) For information regarding the sensor Display "Mixer closes" (colder) connection, see Chapter 5.1. Display Heating circuit in summer mode Display Feed or heating circuit pump operational Logamatic 4323 Subject to technical modifications.
  • Page 15 AUT: The heating circuit operates in automatic mode. The heating circuit pump is switched off. The mixer is switched volt-free. The control functions continue to be active. Current functions are indicated by LEDs. Logamatic 4323 Subject to technical modifications.
  • Page 16 USER INFORMATION You can adapt the curve if required Chapter 9.7). Fig. 10 U terminals 1 and 2 x 0 – 10 V input in V (factory setting) y Set flow temperature in °C Logamatic 4323 Subject to technical modifications.
  • Page 17 0 – 20 mA signal. The strapping plug (jumper) J1 should then be repositioned from Fig. 11 U terminals 3 and 4 x Set flow temperature in °C (factory setting) y 0 – 10 V input in V Logamatic 4323 Subject to technical modifications.

  • Page 18: Fm441 Function Module (Accessory)

    Display Heating circuit in summer mode Display DHW in night mode below the set temperature. Display Heating circuit pump active Display Cylinder primary pump active Display DHW circulation pump active Display Thermal disinfection active Logamatic 4323 Subject to technical modifications.
  • Page 19 The heating circuit pump or DHW cylinder primary pump as well as the DHW circulation pump are switched off. The mixer is switched volt-free. The control functions continue to be active. Current functions are indicated by LEDs. Logamatic 4323 Subject to technical modifications.

  • Page 20: Fm442 Function Module (Accessory)

    AUT: The heating circuit operates in automatic mode. The heating circuit pump is switched off. The mixer is switched volt-free. The control functions continue to be active. Current functions are indicated by LEDs. Logamatic 4323 Subject to technical modifications.

  • Page 21: Commissioning The Mec2 Programming Unit

    If the MEC2 contains a software version that is not able to recognise this type Control unit of control unit, the display shows "Unknown Control unit". Remove the MEC2 from the control unit and replace it with an MEC2 with a suitable software version. Logamatic 4323 - Subject to technical modifications.
  • Page 22 The control unit scans whether the new data should be accepted or whether the old data from the Night button control unit should be used again. receive Logamatic 4323 - Subject to technical modifications.
  • Page 23 The display will then show the adjacent message. Data are to ctrl unit sent Press "Night mode" = "Data are from ctrl unit taken". The display will then show the adjacent message. Data are from ctrl unit taken Logamatic 4323 - Subject to technical modifications.

  • Page 24: Calling Up The Service Level

    You can scroll through the main menu level by turning the rotary selector. The main menus are structured as a loop and recommence after the last main menu. – Gen. parameters – Module selection – ... – ... – Gen. parameters Logamatic 4323 - Subject to technical modifications.
  • Page 25 Press and hold down "Display". You can modify the adjustable parameters of the submenu selected by turning the rotary selector. For example, you might select functions or temperatures. Release "Display" to save your input. Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 26: Calling Up And Modifying Settings

    Press "Back" to return to the next level up. Press "Back" several times to return to the standard display. The control unit automatically reverts to the standard display if no key is pressed for some time or if the flap is shut. Logamatic 4323 - Subject to technical modifications.

  • Page 27: General Parameters

    You can scroll through the following submenus by turning the rotary selector: – Min outside temp – Type of building – Summer/Winter Time adjustment – Remote adjust. – Fault message manual control – Automatic maint. message – 0 – 10 V input Logamatic 4323 - Subject to technical modifications.

  • Page 28: Minimum Outside Temperature

    Hold down "Display" and turn the rotary selector until the required value appears (here: "-12°C"). The display shows the set value. GENERAL PARAM. Release "Display" to save your input. Min outside temp -12°C Logamatic 4323 - Subject to technical modifications.
  • Page 29 –4 Marseilles –6 Moscow –30 Munich –16 Naples –2 Nice Paris –10 Prague –16 Rome –1 Sevastopol –12 Stockholm –19 Valencia –1 Vienna –15 Zurich –16 Tab. 3 Minimum outside temperatures for Europe Logamatic 4323 - Subject to technical modifications.

  • Page 30: Type Of Building

    The display shows the set value. GENERAL PARAM. Release "Display" to save your input. Type of building heavy Press "Back" to return to the next level up. Input range Factory setting medium medium Type of building heavy light Logamatic 4323 - Subject to technical modifications.

  • Page 31: Summer/Winter Time Adjustment

    – Maintain a minimum distance of 1.5 m from sources of interference, such as computer monitors and TV sets. – The radio reception tends to be better at night than during the day. Logamatic 4323 - Subject to technical modifications.
  • Page 32 BFU/F remote control and other MEC2 programming units with radio clock reception. The last input at a control unit in the system is valid. Input range Factory setting Radio clock automatic Summer/Winter Time adjustment automatic manual Logamatic 4323 - Subject to technical modifications.

  • Page 33: Remote Adjust

    Press "Back" to return to the next level up. USER INFORMATION This parameter cannot be adjusted via the telecontrol system; it is only intended to be used in situ. Input range Factory setting Remote adjust. Logamatic 4323 - Subject to technical modifications.

  • Page 34: Manual Fault Message Control

    In the case of "Central fault message", a central fault message will also be issued via a zero volt contact, e.g. via the FM448 function module. Input range Factory setting Manual fault message control fault message central fault message Logamatic 4323 - Subject to technical modifications.

  • Page 35: Automatic Maintenance Message

    Hold down "Display" and turn the rotary selector until the required value appears (here: "Date"). The display shows the set value. GENERAL PARAM. Release "Display" to save your input. automatic maint. message Date Turn the rotary selector one increment clockwise. Logamatic 4323 - Subject to technical modifications.
  • Page 36 The status of the maintenance message can be scanned in the "Monitor" menu. The maintenance message can be reset using the "Reset" menu. Input range Factory setting Automatic maintenance message Hours run Date Logamatic 4323 - Subject to technical modifications.

  • Page 37: Input

    (here: "Temp control"). The display shows the set value. GENERAL PARAM. Release "Display" to save your input. 0-10V input Temp control Input range Factory setting Temp control 0 – 10 V input Temp control Logamatic 4323 - Subject to technical modifications.

  • Page 38: Temperature Control 0 - 10 V Input

    Hold down "Display" and turn the rotary selector until the required set value appears (here: "5°C"). The display shows the set value. GENERAL PARAM. Release "Display" to save your input. Temp. contr 0V equates to 5°C Logamatic 4323 - Subject to technical modifications.
  • Page 39 0 – 10 V inputs of a control unit are controlled. An open input corresponds to 0 V and thus to a heat demand of, for example, 90 °C. The demand should be set parallel at all inputs of a control unit, if applicable. Logamatic 4323 - Subject to technical modifications.

  • Page 40: Module Selection

    Module selection 10 Module selection On starting the Logamatic 4323 control unit or after a system reset, the modules are automatically recognised and their information downloaded. Example: Slot 1: FM442 Slot 2, 3 and 4: free However, these modules can also be set manually if required.

  • Page 41: Heating Circuit Data

    The set flow temperature is only dependent on the actual room temperature. For this, you must install a remote control inside the room. The heating system is switched off if the room becomes too hot. Logamatic 4323 - Subject to technical modifications.

  • Page 42: Heating System Selection

    Release "Display" to save your input. Heating system Underfloor Press "Back" to return to the next level up. Input range Factory setting none Radiators Heating system Radiators Convector Underfloor Constant Low end Room controller Logamatic 4323 - Subject to technical modifications.

  • Page 43: Renaming The Heating Circuit

    Release "Display" to save your input. Heating system Underfloor Press "Back" to return to the next level up. Input range Factory setting Heating circ. Heating circ. Heat circ desig. Apartment Underfloor Bathroom Swimming pool Floor Cellar Building Logamatic 4323 - Subject to technical modifications.

  • Page 44: Setting The Low End Temperature

    Release "Display" to save your input. Low end temp. 32°C Press "Back" to return to the next level up. Input range Factory setting 20 °C – 80 °C 30 °C Low end temperature Logamatic 4323 - Subject to technical modifications.

  • Page 45: Setting The Design Temperature

    65°C Press "Back" to return to the next level up. Input range Factory setting 30 °C – 90 °C 75 °C for Radiators/Convectors/ Design temperature Constant/Low end 45 °C for underfloor heating systems Logamatic 4323 - Subject to technical modifications.

  • Page 46: Minimum Flow Temperature

    Release "Display" to save your input. Minimum Flow temp. 10°C Press "Back" to return to the next level up. Input range Factory setting 5 °C – 70 °C 5 °C Minimum flow temperature Logamatic 4323 - Subject to technical modifications.

  • Page 47: Maximum Flow Temperature

    Input range Factory setting 30 °C – 60 °C 50 °C Maximum flow temperature for underfloor heating 30 °C – 90 °C 75 °C Maximum flow temperature for radiators, convector heaters, low end Logamatic 4323 - Subject to technical modifications.

  • Page 48: Selecting Remote Control

    The heating circuits grouped together under "MEC heat. circ." can, for specific settings, also be selected as "Single heat. circ". The timer program "PROG" function is only available for each individual heating circuit. Logamatic 4323 - Subject to technical modifications.
  • Page 49 HEAT CIRC. DATA 2 Release "Display" to save your input. Remote control with display Press "Back" to return to the next level up. Input range Factory setting none none Remote control without display with display Logamatic 4323 - Subject to technical modifications.

  • Page 50: Maximum Room Influence

    HEAT CIRC. DATA 2 Release "Display" to save your input. Max room infl Press "Back" to return to the next level up. Input range Factory setting 0 K – 10 K Max. room influence Logamatic 4323 - Subject to technical modifications.

  • Page 51: Select The Type Of Setback

    Turn the rotary selector until the main menu "Heating circ. + no." appears (here: "Heating circ. 2"). Press "Display" to call up a submenu (here: "Heating system"). The display shows the selected submenu. HEAT CIRC. DATA 2 Heating system Radiators Logamatic 4323 - Subject to technical modifications.
  • Page 52 Release "Display" to save your input. Setback type Standby Press "Back" to return to the next level up. Input range Factory setting Hold if cold Hold if cold Setback type Standby Reduced Hold room temp Logamatic 4323 - Subject to technical modifications.

  • Page 53: Setting The Outside Stop Temperature

    Release "Display" to save your input. Outside hold frm 1°C Press "Back" to return to the next level up. Input range Factory setting -20 °C – 10 °C 5 °C Outside hold frm Logamatic 4323 - Subject to technical modifications.

  • Page 54: Holiday Setback Type

    Holiday Setback type Hold if cold* Standby Reduced * With setting "Holiday hold if cold" the rotary selector also takes you into the menu where you set the temperature (between -20°C and 10°C). Logamatic 4323 - Subject to technical modifications.

  • Page 55: Stopping Setback At Low Outside Temperatures

    Release "Display" to save your input. No setback Below outside temp. 0°C Press "Back" to return to the next level up. Input range Factory setting disabled disabled No setback -30 °C – 10 °C Below outside temp. Logamatic 4323 - Subject to technical modifications.

  • Page 56: Setting Flow Setback

    HEAT CIRC. DATA 2 Release "Display" to save your input. Flow Setback by Press "Back" to return to the next level up. Input range Factory setting 0 K – 40 K 30 K Flow setback Logamatic 4323 - Subject to technical modifications.

  • Page 57: Room Temperature Offset

    HEAT CIRC. DATA 2 Release "Display" to save your input. Room temperature Offset -2°C Press "Back" to return to the next level up. Input range Factory setting -5 °C – 5 °C 0 °C Offset Logamatic 4323 - Subject to technical modifications.

  • Page 58: Automatic Adaptation

    The display shows the set value. HEAT CIRC. DATA 2 Release "Display" to save your input. Autom adaptation Press "Back" to return to the next level up. Input range Factory setting Automatic adaptation Logamatic 4323 - Subject to technical modifications.

  • Page 59: Setting Switching Optimisation

    Call up the service level. "Gen. parameters" is shown as the first main menu. Turn the rotary selector until the main menu "Heating circ. + no." appears (here: "Heating circ. 2"). Press "Display" to call up a submenu (here: "Heating system"). Logamatic 4323 - Subject to technical modifications.
  • Page 60 The display shows the set value. HEAT CIRC. DATA 2 Release "Display" to save your input. Optimisation Stop Press "Back" to return to the next level up. Input range Factory setting none none Optimisation Start Stop Start/Stop Logamatic 4323 - Subject to technical modifications.

  • Page 61: Setting Stop Optimisation Time

    Release "Display" to save your input. Shutdown optimisation time 30min Press "Back" to return to the next level up. Input range Factory setting 10 minutes – 60 minutes 60 minutes Shutdown optimisation time Logamatic 4323 - Subject to technical modifications.

  • Page 62: Setting The Frost Protection Temperature

    HEAT CIRC. DATA 2 Release "Display" to save your input. Frost prot from -2°C Press "Back" to return to the next level up. Input range Factory setting -20 °C – 1 °C 1 °C Frost protection Logamatic 4323 - Subject to technical modifications.

  • Page 63: Setting The Dhw Priority

    The display shows the set value. HEAT CIRC. DATA 2 Release "Display" to save your input. DHW priority Press "Back" to return to the next level up. Input range Factory setting DHW priority Logamatic 4323 - Subject to technical modifications.

  • Page 64: Entering The Heating Circuit Actuator

    (here: "no"). The display shows the set value. HEAT CIRC. DATA 2 Release "Display" to save your input. Servomotor Press "Back" to return to the next level up. Input range Factory setting Servomotor Logamatic 4323 - Subject to technical modifications.

  • Page 65: Enter Servomotor Runtime

    HEAT CIRC. DATA 2 Release "Display" to save your input. Servomotor runtime Press "Back" to return to the next level up. Input range Factory setting 10 seconds – 600 seconds 120 seconds Servomotor runtime Logamatic 4323 - Subject to technical modifications.

  • Page 66: Boiler Raising

    HEAT CIRC. DATA 2 Release "Display" to save your input. Boil.raising 10°C Press "Back" to return to the next level up. Input range Factory setting 0 °C – 20 °C 5 °C Boiler raising Logamatic 4323 - Subject to technical modifications.

  • Page 67: External Changeover

    The display shows the selected submenu. HEAT CIRC. DATA 2 Heating system Radiators Turn the rotary selector until submenu "External Day/night/aut" is displayed. The display shows the selected submenu. HEAT CIRC. DATA 2 External Day/night/aut none Logamatic 4323 - Subject to technical modifications.
  • Page 68 HEAT CIRC. DATA 2 Release "Display" to save your input. External Day/night/aut via WF1/2/3 Press "Back" to return to the next level up. Input range Factory setting none none External day/night/aut Day via WF1/3 via WF1/2/3 Logamatic 4323 - Subject to technical modifications.

  • Page 69: External Fault Message - Pump

    Release "Display" to save your input. External fault Boil. raising message pump via WF1/2 10°C Press "Back" to return to the next level up. Input range Factory setting none none External fault message pump via WF1/2 Logamatic 4323 - Subject to technical modifications.

  • Page 70: Screed Drying

    Press "Display" to call up a submenu (here: "Heating system"). The display shows the selected submenu. HEAT CIRC. DATA 2 Heating system Underfloor Turn the rotary selector until submenu "Screed drying" appears. The display shows the selected submenu. Logamatic 4323 - Subject to technical modifications.
  • Page 71 The display shows the set value. HEAT CIRC. DATA 2 Release "Display" to save your input. Screed drying Temp increase by Input range Factory setting 1 K – 10 K Temp increase by Logamatic 4323 - Subject to technical modifications.
  • Page 72 The display shows the set value. HEAT CIRC. DATA 2 Release "Display" to save your input. Screed drying Max. temperature 25°C Input range Factory setting 25 °C – 60 °C 45 °C Maximum temperature Logamatic 4323 - Subject to technical modifications.
  • Page 73 (here: "10K"). The display shows the set value. HEAT CIRC. DATA 2 Release "Display" to save your input. Screed drying Setback by Input range Factory setting 1 K – 10 K Setback by Logamatic 4323 - Subject to technical modifications.
  • Page 74 Release "Display" to save your input. Screed drying Setback every 5th day Press "Back" to return to the next level up. Input range Factory setting none every day Setback in daily cycles every day – every 5th day Logamatic 4323 - Subject to technical modifications.

  • Page 75: Dhw Data

    DHW data 12 DHW data In its standard version, the Logamatic 4323 control unit is 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 cylinder Here, you can log the DHW cylinder in and out if a DHW module is installed.

  • Page 76: Setting The Temperature Range

    DHW DATA Release "Display" to save your input. Range to 80°C Press "Back" to return to the next level up. Input range Factory setting 60 °C – 80 °C 60 °C Range to Logamatic 4323 - Subject to technical modifications.

  • Page 77: Selecting Switching Optimisation

    (here: "yes"). The display shows the set value. DHW DATA Release "Display" to save your input. Optimisation for starting Press "Back" to return to the next level up. Input range Factory setting Optimisation Logamatic 4323 - Subject to technical modifications.

  • Page 78: Selecting Residual Heat Use

    The display shows the set value. DHW DATA Release "Display" to save your input. Residual heat use Press "Back" to return to the next level up. Input range Factory setting Residual heat use Logamatic 4323 - Subject to technical modifications.

  • Page 79: Setting Hysteresis

    The display shows the set value. DHW DATA Release "Display" to save your input. Hysteresis -20K Press "Back" to return to the next level up. Input range Factory setting -20 K – 2 K -5 K Hysteresis Logamatic 4323 - Subject to technical modifications.

  • Page 80: Raising The Boiler Water Temperature

    The display shows the set value. DHW DATA Release "Display" to save your input. Boiler raising Press "Back" to return to the next level up. Input range Factory setting 10 K – 40 K 40 K Boiler raising Logamatic 4323 - Subject to technical modifications.

  • Page 81: External Fault Message (Wf1/2)

    Release "Display" to save your input. External fault message WF1/2 Pump Press "Back" to return to the next level up. Input range Factory setting none none External fault message Inert anode (subject to heat source and module) Pump Logamatic 4323 - Subject to technical modifications.

  • Page 82: External Contact (Wf1/3)

    Turn the rotary selector until submenu "External contact WF1/3" is displayed. The display shows the selected submenu. DHW DATA External contact WF1/3 none Hold down "Display" and turn the rotary selector until the required value appears (here: "Heating once"). Logamatic 4323 - Subject to technical modifications.

  • Page 83: Selecting And Setting Up Thermal Disinfection

    The system tries to reach the set thermal disinfection temperature for three hours. If this fails, the fault message "Therm. disinfect failed" appears. You may also set up thermal disinfection via your own switching program. Logamatic 4323 - Subject to technical modifications.
  • Page 84 (here: "yes"). The display shows the set value. DHW DATA Release "Display" to save your input. Therm. disinfect Press "Back" to return to the next level up. Input range Factory setting Thermal disinfection Logamatic 4323 - Subject to technical modifications.

  • Page 85: Setting The Thermal Disinfection Temperature

    Release "Display" to save your input. Temperature Therm. disinfect 75°C Press "Back" to return to the next level up. Input range Factory setting 65 °C – 75 °C 70 °C Thermal disinfection temperature Logamatic 4323 - Subject to technical modifications.

  • Page 86: Setting The Day Of The Week For Thermal Disinfection

    DHW DATA Release "Display" to save your input. Weekday Therm. disinfect Sunday Press "Back" to return to the next level up. Input range Factory setting Monday – Sunday Tuesday Thermal disinfection day daily Logamatic 4323 - Subject to technical modifications.

  • Page 87: Set The Time Of Day For Thermal Disinfection

    The display shows the set value. DHW DATA Release "Display" to save your input. time Therm. disinfect 18:00 Press "Back" to return to the next level up. Input range Factory setting 00:00 – 23:00 01:00 Thermal disinfection time Logamatic 4323 - Subject to technical modifications.

  • Page 88: Daily Heat-Up

    USER INFORMATION If the DHW was heated to 60 °C within the last 12 hours, it is not heated at the specified time. Input range Factory setting disabled disabled Daily heat-up 00:00 – 23:00 Logamatic 4323 - Subject to technical modifications.

  • Page 89: Selecting The Dhw Circulation Pump

    (here: "no"). The display shows the set value. DHW DATA Release "Display" to save your input. DHW circulation Press "Back" to return to the next level up. Input range Factory setting DHW circulation Logamatic 4323 - Subject to technical modifications.

  • Page 90: Setting The Dhw Circulation Pump Intervals

    The display shows the selected submenu. DHW DATA Turn the rotary selector until submenu "DHW circulation per hour" appears. The display shows the selected submenu. DHW DATA DHW circulation per hour 2 times on Logamatic 4323 - Subject to technical modifications.
  • Page 91 Press "Back" to return to the next level up. Input range Factory setting 2 times on DHW circulation per hour 1 time on 2 times on 3 times on 4 times on 5 times on 6 times on Constant operation Logamatic 4323 - Subject to technical modifications.

  • Page 92: Substations

    Substations 13 Substations The Logamatic 4323 control unit with ZM433 central module can be operated with – Address 0 (stand-alone), – Address 1 (linked to a master, i.e. the control unit that provides externally generated heat) and with – Address > 1 (as substation linked to other Buderus Logamatic 4000...

  • Page 93: Setting The Minimum Heat-Up Temperature

    Substations 13.1 Setting the minimum heat-up temperature This menu will only be displayed by the Logamatic 4323 control unit 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 Heat-up time"...

  • Page 94: Setting The Maximum Heat-Up Time

    Substations 13.2 Setting the maximum heat-up time This menu will only be displayed by the Logamatic 4323 control unit, if address 0 or 1 has been selected, and the minimum heat-up temperature and therefore also the heat-up time have been enabled.

  • Page 95: Setting Boiler Raising

    Substations 13.3 Setting boiler raising This menu will only appear when operating the Logamatic 4323 control unit as a substation (address > 1)! The value entered here will be added to the heat demand of the control unit and thereby increases the demand temperature. This setting is recommended for compensating temperature losses in systems with long supply lines.

  • Page 96: Special Parameters

    This level is reserved for trained heating contractors. Therefore, settings are not made in plain text but in code, which is explained in a separate document. This document, "Special parameters Logamatic 4000", is available from your local Buderus sales office. Logamatic 4323 - Subject to technical modifications.

  • Page 97: Heating Curve

    Turn the rotary selector until submenu "Heating circ. 2" appears. The display shows the selected submenu. HEATING CURVE Heating circ. 2 OT: 10 / 0 /-10 FL: 45 /62 /75 Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 98: Carrying Out A Relay Test

    Leave this function after the relay test to prevent system damage. With the modules installed most commonly in the Logamatic 4323 control unit, i.e. FM441 and FM442, the following relays can be called up: Heating circuit 0 – 9 –...
  • Page 99 The display shows the selected submenu. RELAY TEST Heating circ. 2 Press "Display" to call up a further submenu (here: "Circ. pump"). The display shows the selected submenu. RELAY TEST Heating circ. 2 Circ. pump Logamatic 4323 - Subject to technical modifications.
  • Page 100 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 INFORMATION All relay test settings are cancelled at the end of the test. Logamatic 4323 - Subject to technical modifications.

  • Page 101: Multi-Boiler Systems

    Multi-boiler systems 17 Multi-boiler systems The Logamatic 4323 control unit, together with modules FM456 /457/458, can regulate multi-boiler systems (cascades). For a description of this function, see the technical documentation of the relevant module. Logamatic 4323 - Subject to technical modifications.

  • Page 102: Carrying Out An Lcd Test

    The display shows the selected main menu. SERVICE LEVEL LCD test Press "Display". The LCD is OK if all signs and symbols are correctly displayed. 8Ccd8X8beP Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 103: Fault Log

    The display will show "No fault" if the connected control unit has not recorded any faults. Turn rotary selector and scroll through recent fault messages. Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.
  • Page 104 Fault log Fault displays The following faults can be displayed by the Logamatic 4323 control unit, subject to the most commonly used modules FM441 and FM442 being installed, as well as the ZM433 central module. – Outside temperature sensor – Address confl x –...

  • Page 105: Fault

    – Check sensor and primary pump or primary pump is faulty. function, and replace if required Chapter 16 and 25). – Module or control unit faulty. – If necessary, replace module or control unit. Tab. 4 Fault table Logamatic 4323 - Subject to technical modifications.
  • Page 106 – Check module selected in MEC2 was selected for this MEC2 slot. Chapter 10). – MEC2 programming unit, – If necessary, replace relevant corresponding module or control component. unit is faulty. Tab. 4 Fault table Logamatic 4323 - Subject to technical modifications.
  • Page 107 "AUT". Maintenance – No influence on control – The specified period before the – Perform maintenance and then characteristics. next service has expired. reset maintenance message. Date Tab. 4 Fault table Logamatic 4323 - Subject to technical modifications.

  • Page 108: Monitor Data

    Press "Display" to call up a submenu (here: "Heating circ. 0"). The display shows the selected submenu. MONITOR Heating circ. 0 Turn the rotary selector until submenu "Heating circ. 2" appears. The display shows the selected submenu. MONITOR Heating circ. 2 Press "Display". Logamatic 4323 - Subject to technical modifications.
  • Page 109 – -100 % = servomotor is controlled every 10 seconds for 10 seconds towards "Mixer closes" (colder) (constant). Circ. pump Indicates the operating condition of the circulation pump. Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 110: Dhw Monitor Data

    DHW monitor Temperature 60/57 Possible operating modes: Automatic day Optimise 120min – Off – Constant operation – Automatic night – Automatic day – Holiday – Optimisation – Thermal disinfection – Reheating – Daily heat-up Logamatic 4323 - Subject to technical modifications.
  • Page 111 DHW cylinder primary pump. Prim. heating DHW circulation DHW circulation Indicates the operating condition of the DHW circulation pump. Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 112: Substation Monitor Data

    The value "ext. demand" indicates a further heat demand in °C via terminal U Pump (connection 1 and 2) in accordance with the diagram on Page 16. The "Pump" value indicates the status of the feed pump. Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 113: Display Version

    Press "Display" to call up a submenu. The versions for the MEC2 programming unit and the control unit are displayed. VERSION 8.xx Control unit 8.xx Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 114: Selecting The Control Unit

    Hold down "Display" and select the required value with the rotary selector (here: "4323"). The display shows the set value. Control unit Release "Display" to save your input. Logamatic 4323 Press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 115: Reset

    After Factory settings implementing a reset, the display automatically reverts to the next level up. Control unit When terminating a reset, press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 116: Resetting The Fault Log

    After implementing a reset, the display automatically reverts to the next level up. Fault log When terminating a reset, press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 117: Resetting The Maintenance Message

    After implementing a reset, the display automatically reverts to the next level up. Fault log When terminating a reset, press "Back" to return to the next level up. Logamatic 4323 - Subject to technical modifications.

  • Page 118: Specification

    Three-point stepper controller (PI characteristics) Ambient temperatures Operation °C +5...+50 Handling °C -20...+50 Tab. 5 Specification - Logamatic 4323 control unit Sensor measuring range Sensor lower fault limit lowest display value highest display value upper fault limit in °C in °C in °C...

  • Page 119: Fm442 Function Module

    °C in °C value in °C in °C Flow temp. B on left < -5 Flow temp. B on right < -5 Tab. 10 Measuring range Logamatic 4323 Subject to technical modifications.

  • Page 120: Sensor Curves

    Check the sensor temperature with a thermometer. Fig. 18 Outside temperature sensor and boiler water, flow, and DHW temperature sensors 1 Outside temperature sensor curve 2 Sensor curves - boiler water, flow and DHW temperature Logamatic 4323 Subject to technical modifications.
  • Page 121 Sensor curves Fig. 19 Room temperature and flue gas temperature sensors 1 Room temperature sensor curve 2 Flue gas temperature sensor curve Logamatic 4323 Subject to technical modifications.

  • Page 122: Keyword Index

    Hold if cold ..... 53 Setting the control unit address ..12 Logamatic 4323 - Subject to technical modifications.
  • Page 123 ZM433 ..... . . 14 ZM433 central module ... . . 14 Logamatic 4323 - Subject to technical modifications.
  • Page 124 Unit L40 Cherry Orchard Industrial Estate Cherry Orchard, Dublin 10 Tel.: 01.6305700 Fax.: 01.6305706 / 01.6305715 www.cfquadrant.ie E-mail: sales@cfquadrant.ie In the UK and IE, Buderus is a brand name of Bosch Thermotechnology Ltd. Bosch Thermotechnik GmbH Sophienstrasse 30-32 D-35576 Wetzlar www.buderus.de...

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