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Installing the unit
CAUTION! ALWAYS PULL THE MAINS PLUG BEFORE OPENING THE CASE! Only work on the
control system when it is dead.
Unscrew the screw on the top of the case and take off the lid. The control electronics is in the lid.
Contact pins are used to restore the connection to the clamps in the lower part of the case when it is
put back on. The basin of the case can be screwed on through the two holes to the wall using the
fastening screws provided (with the cable bushings downwards).
Electrical connection
Warning: The electrical connection should only be made by a professional electrician in
accordance with the relevant local guidelines. The sensor lines may not be fed through the same
cable channel as the supply voltage. The maximum load of output A1 equals 1.5A while that of
outputs A2 and A3 each equals 2.5A! All of the outputs are fused along with the equipment at 3.15A.
If filter pumps are directly connected, mind their rating plate. The fuse protection can be increased to
max. 5A (medium-lag). The strip terminal PE must be used for all protective conductors.
Note: The system has to be grounded properly and furnished with surge arresters to pro-tect it
from damage due to lightening. Sensor failures due to storms and static electricity are usually the
result of faulty construction.
All sensor ground wires
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are internally looped and can be exchanged as need be.
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