17
4.2.3 Support rings
The support rings are partly diffenerent from country to country. The correct support ring is
supplied according to country.
Country-specific support rings are for example:
1 2 3 4
Fig. 3: Country-specific support rings
[1] VDE Germany
[2] Switzerland / British standard (BS)
(The support ring for Switzerland is supplied without earth terminal)
[3] NEMA
[4] Italy
4.3 Functions
The following table provides an overview of the possible functions and applications of the
device:
Special features Function
■
Function illumination
■
Freely programmable
■
Day/Night switchover of display illumination
■
Set / actual temperature
■
Comfort/standby
■
Eco mode
■
Frost protection
■
Heat protection
■
Heating
■
Cooling
■
Fan control
■
Logic functions
Table : Overview of functions
NOTE
The room temperature controller operates as PI controller and
in time adjusts its control value also to the response of the room.