Manual Buderus Logamatic 4122 (page 2 of 88) (English)

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Contents

Logamatic 4121, 4122 and 4126 - Subject to technical modifications.

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 What you should know about your heating system. . . . . . . . . . . . . . . . . . 5

3 Tips on energy-efficient heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1 About these instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.3 Standards and guidelines/directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.4 Symbol key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.5 Please observe these notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.6 Cleaning the control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.7 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Controls and MEC2 programming unit . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1 Control unit controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.2 MEC2 programming unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.3 Switching on the control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.4 Switching off the control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6 Standard functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.1 Simple operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.2 Permanent display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.3 Selecting the operating mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6.4 Setting the room temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.5 Heating DHW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

7 Extended functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.1 Keys for extended functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.2 Controlling the extended functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7.3 Displaying operating values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7.4 Changing the permanent display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.5 Setting the date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.6 Selecting a heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.7 Adjusting the room temperature for another heating circuit. . . . . . . . . . . . . . . . . 34

7.8 Heating circuits with MEC2 programming unit. . . . . . . . . . . . . . . . . . . . . . . . . 36

7.9 Selecting and modifying a heating program . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.10 Selecting a standard program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.11 Summary of standard programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.12 Modifying the standard program by moving switching points . . . . . . . . . . . . . . . 41

7.13 Setting the summer/winter time changeover. . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.14 Setting the DHW operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7.15 Setting the operating mode for DHW circulation . . . . . . . . . . . . . . . . . . . . . . . 47

7.16 Setting the holiday function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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Buderus Logamatic 4122 Manual

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