Function; Saving Energy; Operation And Temperature Setting - Austria Email REU Notice D'utilisation Et De Montage

REU - RDU - RDW - RSW - RUL

1. Function

The electrical fitted heaters of the R series are the main heater for electrically heated hot water heaters.
Under normal circumstances, they do not require any maintenance or other service intervention. However,
if the lime concentration of the water is very high, it may be necessary to remove the boiler scale at certain
intervals.
The user sets the desired temperature using the control dial. During the heating interval determined by the
relevant utility, the temperature controller automatically switches the heater on and off (when the selected
water temperature for the storage tank is reached). When the water temperature drops, for instance when
water is retrieved from the tank or as a result of natural cooling, the heater is switched on again until the
actual water temperature in the storage tank coincides with the preselected water temperature again.

2. Saving energy

Selecting a low water temperature setting for the water in the storage tank saves a lot of energy.
Consequently, it is advisable to set the infinitely variable temperature controller to the lowest temperature
setting required for your actual hot water consumption. This reduces your electricity consumption and the
lime deposits in the tank.

3. Operation and temperature setting

With the infinitely variable temperature controller, set the intank water temperature that suits your require-
ments, or select one of the three suggested settings. In this way, you can ensure that your fitted heater
works efficiently without wasting energy.
To help you select an appropriate setting, the temperature control dial of the electrical heater features 4
suggested settings marked as follows:
Setting: Frost protection for the tank (30 °C)

approximately 40° C, hand-hot tank water
Setting:

approximately 65° C, moderately hot tank water This setting is
Setting: ••
recommended to avoid accidental scalding with hot water.
Furthermore, the heater uses energy very sparingly if this setting
is selected. The heat losses are small and the formation of boiler scale is
largely prevented.
Low active standby energy consumption
approximately 85° C, hot tank water
Setting: •••
Caution:
Turning the controller counter-clockwise until the limit stop does not set the unit to zero or switch the unit
off. If the unit feeds on daytime electricity, do not select a temperature setting higher than •• (approx. 65°C).
Due to the hysteresis of the temperature control (± 7K) and possible radiation losses (cooling-down of the
pipelines), the temperature specifications are subject to an accuracy of ± 10K.
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Id.Nr.: 182568-13