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HDS Middle Range / HDS Premium Range
Unit Function
Service Manual 04.2008
Page 27 / 127
Scale inhibitor tank (RM 110/111)
3
1
2
2.8
Scale inhibitor
1 Cap, scale inhibitor tank
2 Seal, scale inhibitor tank cap
3 Scale inhibitor tank (RM 110/111)
4 Level sensor, scale inhibitor tank
5 Metering valve, scale inhibitor tank
2.8.1
Metering via tank (export version)
The scale inhibitor is metered in accordance with
the setting at the Service switch. The setting is
described under 2.6 Service switch. Metering
takes place in Program switch position „Eco“
and „Hot Water“ only, at a water temperature set
to
ⱖ
50 °C.
The empty signal is sent via the level sensor (4)
and is displayed by means of the indicator light
or display.
Burner operation is possible even without scale
inhibitor. However, if the water is hard (contains
calcium carbonate), faults due to scale deposits
are to be expected.
Scale inhibitor tank, removed
Scale inhibitor tank with level sensor
4
3
3
4
5
Note
The metering may not be switched off if
using RM 111 (see Chapter 2.6).