815_58300000003806_ara_en_e.doc – 30.01.12
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4.6
Regeneration / drainage valve
The regeneration valve (B) and the drainage valve (C) are situated in
the
water softening system.
If the regeneration valve (B) is actuated,
the water stored in the regeneration chamber is conveyed through the
water softening system (A). If the drainage valve (C) is actuated, the
water stored in the heat exchanger is conveyed into the rinsing tank
via the water softening system (A).
Technical specifications:
Designation Value
Unit
Nominal voltage
230 - 240
V
Frequency 50
Hz
Resistance 2.45
k
Ω
4.7
Raw water valve
The raw water valve (D) is located at the rear on the water softening
system (A) and is responsible for admixing hard water.
The raw or soft water valve (D) is actuated via the electronics module
which calculates how frequently and how long the valve is to be
actuated for. As a result, a constant water hardness of approx. 5
°
dH
is obtained. For this reason it is important to set the hardness range
precisely.
If the valve is actuated (open), the raw water is conveyed through the
water softening system and softened. If the valve is not actuated
(closed), the inlet to the water softening system is sealed and the raw
water flows directly into the heat exchanger via the water inlet.
Technical specifications:
Designation Value
Unit
Nominal voltage
230 - 240
V
Frequency 50
Hz
Resistance 2.45
k
Ω
A Water softening system
C Heat exchanger outlet valve
B Regeneration
valve
D Raw
water
valve