User manual

3
Operating mode selector switch (works setting = 7, operation with screwdriver) (_ page 2):
Economy program:
Function: Circulation starts after water has been withdrawn for a short time.
Advantage: Maximum energy saving effect.
Disadvantage: Hot water not immediately available at any time.
Important: Never let the water run until hot water comes out of the tap. Briefly turning on the
hot-water tap for one or a few seconds suffices for activating circulation. After a
certain time, which depends on the flow rate of the water (volumetric delivery of pump),
hot water can be withdrawn immediately after the tap is turned on.
Automatic program:
Function: As economy program. In addition, recurrent consumption times are learned and
continually updated.
Advantage: No waiting time required for periodically recurring water consumption patterns. Energy
saving effect is nevertheless high.
Disadvantage: If hot water is needed outside the regular pattern, hot water is not available immediately at
any time.
Comfort program:
Function: As automatic program. Additionally, a cyclic activation function which activates the pump
in certain intervals irrespective of consumption .
Advantage: Depending on the length of the interval, hot water is immediately available at any time.
Disadvantage: Only moderate energy saving effect (will be the higher the longer the intervals are)