Technical Data - Specifications:
Input Voltage
220-250V / 50 Hz / Max. 10A
Max. pressure
10 bar
Max. temperature
60°C
Connections
25,4 mm external threads
Protection class
IP 65
Functional description of the general operating mode of the pump control:
The pump control consists of a pressure switch and a water flow switch. The switching cycles are then
determined from the two switching states of the pressure switch and the water flow switch.
Water pressure switch ac water flow switch not actuated = normal switch-off (delay of
approx. 3-8 sec. until switch-off).
Wasser
water pressure switch not ac water flow switch actuated = pump on
Water pressure switch not ac water flow switch not actuated = switch-off due to dry
running and indication of fault. (delay 8-15 seconds)
Common causes of errors:
First problem case:
The pump control switches off and displays failure/error even though water was pumped successfully
before. After a reset, this error will reoccur immediately or after a short time.
Possible causes:
A: The water pressure of the pump used is not sufficient to operate the water pressure switch.
(Causes can be a blockage, a worn pump body or a pump that is too weak).
B: The water pressure switch in the pump control is blocked. (Cleaning with clean water can solve the
problem or the housing of the pressure switch in the pump control must be cleaned. Sand and other
sediments may have deposited here.)
Second problem case:
The pump control leaves the pump permanently switched on regardless of whether the tap is open or
closed.
Possible causes:
A: The installation position of the pump control was not taken into account. This does not reset the wa-
ter flow switch and it is permanently actuated. (Check installation position and correct if necessary.
B: The water flow switch at the pump control input is permanently actuated. This can be caused by
contamination, calcification or a foreign body. (An optical check confirms this problem and can be cor-
rected by cleaning.)
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January 2020 Version 7