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Buderus Manuals
Control Unit
Logamatic 4121
Operating instructions manual
Buderus Logamatic 4121 Operating Instructions Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
1 Introduction
2 What You Should Know about Your Heating System
3 Tips on Energy-Efficient Heating
4 Safety
About These Instructions
Correct Use
Standards and Guidelines/Directives
Symbol Key
Please Observe These Notes
Cleaning the Control Unit
Disposal
5 Controls and MEC2 Programming Unit
Control Unit Controls
MEC2 Programming Unit
Switching on the Control Unit
Switching off the Control Unit
6 Standard Functions
Simple Operation
Permanent Display
Selecting the Operating Mode
Setting the Room Temperature
Heating DHW
7 Extended Functions
Keys for Extended Functions
Controlling the Extended Functions
Displaying Operating Values
Changing the Permanent Display
Setting the Date and Time
Selecting a Heating Circuit
Adjusting the Room Temperature for Another Heating Circuit
Heating Circuits with MEC2 Programming Unit
Selecting and Modifying a Heating Program
Selecting a Standard Program
Summary of Standard Programs
Modifying the Standard Program by Moving Switching Points
Setting the Summer/Winter Time Changeover
Setting the DHW Operating Mode
Setting the Operating Mode for DHW Circulation
Setting the Holiday Function
Interrupting and Continuing the Holiday Function
Setting the Party Function
Setting the Pause Function
Room Temperature Matching
Automatic Maintenance Message
8 Additional Programming Options
Modifying the Standard Program by Inserting/Deleting Switching Points
Creating a New Heating Program
Creating a New DHW Program
Creating a New DHW Circulation Pump Program
Thermal Disinfection
9 Modules and Their Functions
ZM424 Central Module
FM441 Function Module (Accessory)
FM442 Function Module (Accessory)
FM445 Function Module (Logamatic 4126)
10 Boiler Flue Gas Test
11 Troubleshooting
Simple Troubleshooting
Troubleshooting
12 Operation in the Event of a Fault
Emergency Mode
Manual Mode Logamatic 4121
Manual Mode Logamatic 4126
13 Setup Report
14 Keyword Index
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Introduction
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Controls and Mec2 Programming Unit
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Operating Instructions
Logamatic 4121, 4122 and
4126
Control unit
For users
Read carefully before use
Table of
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Table of Contents
Troubleshooting
Troubleshooting
78
Simple troubleshooting
79
Troubleshooting
80
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This manual is also suitable for:
Logamatic 4122
Logamatic 4126
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