![DewertOkin C DD-A 1xCB Installation Instructions Manual Download Page 16](http://html1.mh-extra.com/html/dewertokin/c-dd-a-1xcb/c-dd-a-1xcb_installation-instructions-manual_2489902016.webp)
System component description
System DD11 / System DD21
16
82774 2.0
3.4.3 HSU Varioline control keypad
The HSU Varioline control keypad has two keys for the up and down adjustments.
Figure 9
HSU Varioline control keypad
A
key (adjusting down)
B
Mounting surface
C
Connection cable
D
key (adjusting up)
A
D
C
B