The operating elements can be accessed once the transparent housing cover has been removed. The housing
cover may be removed for operational purposes, but it only makes sense for service work.
The protective rating given is reduced when the cover is removed (water-tightness). Before removal, it must be
checked whether there is a hazard through high humidity or splashwater. In this case, the control unit must be
switched voltage-free first. In case of doubt, a qualified electrician must always be consulted.
The current set at the motor protection switch must correspond with the rated current of the connected motor
Following operation, the housing cover must be sealed properly again to guarantee the protective rating
(water-tightness).
View of the inside of the control unit (schematic, not to scale) up to model year 12/09
1. Holes for on-site M6 screws
for wall attachment
2. Mains supply
3. Slot for rechargeable battery (rechargeable battery available as accessory)
4.1 Connection of supply for pump motor
4.2 Connection of temperature monitoring for pump motor
5. Connection of level inputs
6. Connection for external malfunction and alarm message
8.2.2
Circuit diagram single system (from model year 01/10)
V 1.0
STANDARD CONTROL UNIT
63/228