Stulz Free-Air-3-IN, Руководство по эксплуатации, Страница: 21 / 31

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Free-AIr-3-IN
© STULZ SpA – all rights reserved EN/02.2018
3. On power supply lines to the FCL, install an omni-pole automatic switch (check size on technical
data plate of the unit).
4. Check that power cables are installed with a sufficient distance from alarm and signal cables.
5. Check that the connection cables have a section suitable to the absorbed power and cable
length (refer to Standard EN60204-1, check size on wiring diagram of the unit).
6. Run power supply cables through the apposite holes on the upper side - right side - of the unit and
connect them to the corresponding terminals inside the electrical box of FCL (see picture below).
7. If needed, connect signal cables for alarms, inputs to the controller, etc. Signal cables are not
supplied with the unit. They have to be inserted into the corresponding screw terminals inside
the e-box of the unit, following the wiring diagram.
DANGer
The inobservance of these instructions might provoke damages or malfunction of components
and the warranty shall become forthwith void.
For use of leakage-current (FI) circuit breakers, EN 50178 5.2.11.2 must be taken into
account. Only type B pulse-current FI circuit breakers are permitted. FI circuit breakers do not
provide protection against bodily harm during operation of the unit or frequency converters.
ATTeNTION
All the devices connected to the digital outputs (except K2, K3 and K4) and analogic inputs of
the controller, must be connected to a SELV type power source (voltage limit 42 Vdc/ac). The
digital inputs of the controller must be connected to voltage-free contacts.
Please refer to use and maintenance manual part 2 for more information.
Supply cable passage