Controls and MEC2 programming unit
5
Logamatic 4121, 4122 and 4126 - Subject to technical modifications.
16
Fig. 7 MEC2 programming unit
1 Display
2 Rotary selector
3 Constant heating mode
4 Automatic heating mode in acc. with a time switch
5 Constant setback mode
6 Enter the day of the week
7 Enter holidays
8 Select standard display
9 Radio clock signal (only within Germany)
10 Display for set room temperature
11 Enter DHW temperature/reheating
12 Set the time
13 Change temperature values
14 Summer/winter time changeover
15 Back to the standard display
16 Select a time switch program
17 Select heating circuits/DHW circuit