Trox EASYLAB TCU3 Series, Инструкция по установке и эксплуатации

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Notes on wiring
Use only cables that are designed for the supply
voltage for which they will be used. The length and
cross section as well as any contact resistance may
increase voltage losses. The power rating of each
unit must also be considered. A skilled qualified
electrician has to select the correct cable types and
sizes. This job must only be carried out by specialist
electrical companies.
 For the electrical connection comply with any
applicable regulations and follow the code of
good practice. Be sure to comply with the
applicable guidelines for working on electrical
and electronic equipment as well as with any
applicabe local regulations.
 The connection data can be found on the
rating plate or in the wiring diagrams.
 Protect any connecting cables from physical
damage.
 Feed cables through the cable glands on the
controller casing.
 Ensure that the device can be de-energised
(all phases) for maintenance so that no voltage
is present. This requires separators (e.g. fuses
or RCBOs) near the controller; the contact gap
should be at least 3 mm.
Additional information on wiring
See the following wiring documents:

Wiring example,
Ä
28

List of terminal connections, Ä 29

General wiring instructions Serie TCU3 (sepa-
rate document)

Project-specific wiring documents, if any
Limited voltage supply
With a supply voltage of 24 V AC/DC, a maximum
of 5 electronic controllers may be connected
through the double terminals to limit the currents on
the circuit board and the terminals.
Polarity of the power supply
When connecting the supply voltage, the polarity at
24 V AC and 24 V DC must be observed for all con-
trollers!
Functional earth
The controller is fitted with a functional earth con-
nection. It is used to improve electromagnetic com-
patibility (EMC)
We recommend you to connect the device to equi-
potential bonding in order to improve electromag-
netic compatibility.
Strain relief
Use the cable clips in the casing for all connection
cables inside the casing.
Cabling
Be careful so as not to kink or disconnect the meas-
uring tubes on the VAV air terminal unit.
Wiring
EASYLAB controller Serie TCU3 21