815_58300000120057_ara_en_d.doc – 25.05.11 Seite 24 von 60
4.16 Instantaneous water heater
The instantaneous water heater is installed in the water circuit for the
spray arms. When the detergent solution flows through the instan-
taneous water heater, a rubber membrane (B) attached to the flange
actuates the safety pressure switch (D) for the heating element (C). If
the pressure drops, the heater switches off. The heating position is
overtravelled, preventing dry heating.
Technical specifications:
Designation Value Unit
Nominal voltage 230–240 V
Frequency 50 Hz
Power 2150 W
Resistor approx. 22
Ω
A “Clicking” safety device / NTC; 85 °C safety switch E From the circulation pump
B Membrane F To the lower spray arm
C Heating element G To the upper spray arm
D Safety pressure switch
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