Unit Function
HDS Middle Range / HDS Premium Range
Page 12 / 127
Service Manual 04.2008
Symbol
Activity
Meaning / Action
LED No.
light up
8
Scale inhibitor level switch detects empty or units on the
tag* of the scale inhibitor bottle have been used up.
1 x flashing
5 hours after-running time have expired, burner is blocked.
Insert new scale inhibitor bottle.
light up
Cleaning agent tank 2 is empty. Add more cleaning agent
(HDS 12/18 only).
9
* Note
The tag is an electronic component on the
new rectangular scale inhibitor bottle. The
tag is located behind the bottle label. The tag
can be electronically read and written. See
also Chapter 2.8.2.
2.1
Control panel
Functions of the LED displays in operating mode