Buderus Logamatic 4323 Service Instructions

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Service instructions

Control unit

Logamatic 4323

7 747 017 316 - 03/2008 GB/IE

For contractors

Read carefully prior

commissioning and

servicing

Default Chapter2
- Table of Contents2
1 Safety5
- About These Instructions5
- Correct Use5
- Standards and Guidelines/Directives5
- Symbol Key5
- Please Observe These Notes5
- Important Notes on Commissioning6
- Cleaning the Control Unit6
- Disposal6
2 Product Description and Standard Delivery7
- Product Description7
- Standard Delivery7
3 Setting Parameters and Display Data8
4 Controls and MEC2 Programming Unit9
- Control Unit - Controls9
- MEC2 Programming Unit10
5 Modules and Their Functions11
- CM431 Controller Module12
- NM482 Power Supply Module13
- ZM433 Central Module14
- FM441 Function Module (Accessory)18
- FM442 Function Module (Accessory)20
6 Commissioning the MEC2 Programming Unit21
7 Calling up the Service Level24
8 Calling up and Modifying Settings26
9 General Parameters27
- Minimum Outside Temperature28
- Type of Building30
- Summer/Winter Time Adjustment31
- Remote Adjust33
- Manual Fault Message Control34
- Automatic Maintenance Message35
- Input37
- Temperature Control 0 - 10 V Input38
10 Module Selection40
11 Heating Circuit Data41
- Heating System Selection42
- Renaming the Heating Circuit43
- Setting the Low End Temperature44
- Setting the Design Temperature45
- Minimum Flow Temperature46
- Maximum Flow Temperature47
- Selecting Remote Control48
- Maximum Room Influence50
- Select the Type of Setback51
- Setting the Outside Stop Temperature53
- Holiday Setback Type54
- Stopping Setback at Low Outside Temperatures55
- Setting Flow Setback56
- Room Temperature Offset57
- Automatic Adaptation58
- Setting Switching Optimisation59
- Setting Stop Optimisation Time61
- Setting the Frost Protection Temperature62
- Setting the DHW Priority63
- Entering the Heating Circuit Actuator64
- Enter Servomotor Runtime65
- Boiler Raising66
- External Changeover67
- External Fault Message - Pump69
- Screed Drying70
12 DHW Data75
- Selecting the DHW Cylinder75
- Setting the Temperature Range76
- Selecting Switching Optimisation77
- Selecting Residual Heat Use78
- Setting Hysteresis79
- Raising the Boiler Water Temperature80
- External Fault Message (WF1/2)81
- External Contact (WF1/3)82
- Selecting and Setting up Thermal Disinfection83
- Setting the Thermal Disinfection Temperature85
- Setting the Day of the Week for Thermal Disinfection86
- Set the Time of Day for Thermal Disinfection87
- Daily Heat-Up88
- Selecting the DHW Circulation Pump89
- Setting the DHW Circulation Pump Intervals90
13 Substations92
- Setting the Minimum Heat-Up Temperature93
- Setting the Maximum Heat-Up Time94
- Setting Boiler Raising95
14 Special Parameters96
15 Heating Curve97
16 Carrying out a Relay Test98
17 Multi-Boiler Systems101
18 Carrying out an LCD Test102
19 Fault Log103
20 Fault105
21 Monitor Data108
- Heating Circuit Monitor Data108
- DHW Monitor Data110
- Substation Monitor Data112
22 Display Version113
23 Selecting the Control Unit114
24 Reset115
- Reset All Control Unit Parameter Settings115
- Resetting the Fault Log116
- Resetting the Maintenance Message117
25 Specification118
- Logamatic 4323 Control Unit118
- FM441 Function Module118
- FM442 Function Module119
26 Sensor Curves120
27 Keyword Index122

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Operating Instructions80 pages

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Buderus Logamatic 4323 Specifications

General

Type	Control Unit
Model	Logamatic 4323
Manufacturer	Buderus
Display	LCD
Input Voltage	230 V AC
Application	Heating systems
Control type	Digital
Protection class	IP 20
Power Supply	230 V AC, 50 Hz
Control Functions	Heating control, temperature regulation
Communication Interface	Bus system
Compatibility	Buderus heating systems
Operating Temperature	0 to 50 °C