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It must be possible to electrically isolate the U•H1 unit for maintenance (protection via a
circuit breaker or double pole switch).
The power supplies for the U•H1 unit and the different devices must be connected to the
same circuit. Ensure that the power conductors are always attached together and kept
separate from the low-voltage conductors.
The power cables for the 230 V part must have a minimum cross-sectional area of 1.5 mm
The U•H1 unit is a Class-I device. The U•H1 unit must always be connected to the earth,
in accordance with the instructions given in this manual.
2.6 Connecting the siren
Connect the S and V– terminals on the siren to the U•H1 unit (Terminals 42 and 43,
respectively). Respect the polarity to avoid damaging the siren.
The cables used to connect the siren must meet the same requirements as the detector
cable (see § 2.4Connecting the detector).
See the operation manual for the siren for instructions on how to connect the siren and
configure its tone.
DALEMANS sa/nv
Rue Jules Mélotte 27A
B-4350 Remicourt
+32 19 33 99 43
U•H1 Instruction Manual
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Certified
ISO9001 • VCA
www.dalemans.com
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