INTERFACE ATW-KNX-02
!
D A N G E R
Follow carefully this safety and installation instructions. Improper work may lead to serious harmful for your health and also may damage
seriously the interface and/or the YUTAKI indoor unit.
1 SAFETY INSTRUCTIONS
• This interface must be installed by accredited technical person-
nel (electrician, KNX installer, or authorized technical person-
nel) and following all the safety instructions given here and in
accordance always with the country legislation for installation
of electric equipment.
• This interface cannot be installed outdoors or exposed to direct
solar radiation, water, high relative humidity or dust and must
only be installed in a restricted access location.
• Before manipulating the YUTAKI indoor unit, be sure it is com-
pletely disconnected from the mains electricity supply.
• Disconnect always from the mains electricity supply any wires
from the KNX bus, the YUTAKI indoor unit and the external
power supply before manipulating and connecting them to the
interface.
• A power supply with an NEC Class 2 or Limited Power Source
(LPS) and SELV rated is to be used.
• Supply always a correct voltage to power the interface in bet-
ween the admitted range (see details in the technical charac-
teristics).
• Respect always the expected polarity of power and communi-
cation cables when connecting them to the interface.
• In case of installation of the interface inside the YUTAKI indoor
unit, fix the interface and communication cables preferably to
any appropriate point of the plastic cover of the unit, taking
care of no blocking free movement of mobile parts, and as far
as possible from tubes containing liquids and power cables.
• To prevent EMC disturbances, ensure that there is a safety
separation (SELV) of the connected signal cables (including
possible extensions) from the other voltage carrying devices
and cables.
• This device was designed for installation in an enclosure. To
avoid electrostatic discharge to the unit in environments with
static levels above 4 kV precautions should be taken when
the device is mounted outside an enclosure. When working in
an enclosure (ex. making adjustments, setting switches etc.)
typical anti-static precautions should be observed before tou-
ching the unit.
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N O T E
• The maximum length for the H-LINK bus is 1000 m. Extending
the connecting cable may cause it to malfunction. Keep the
connecting cable as far away as possible from electrical wires
and ground wire. Do not bundle them together.
2 INSTALLATION INSTRUCTIONS
• Disconnect the Air Conditioner from the mains electricity
supply.
• Disconnect power of any bus or communication cable before
connecting it to the interface.
• Disconnect from the mains electricity supply the external power
supply before connecting it to the interface.
• Connect the H-LINK bus cable between the interface and the
YUTAKI indoor unit following the instructions of the installa-
tion diagram.
• Connect the KNX bus to the connector KNX of the interface.
Respect polarity.
• Close the YUTAKI indoor unit and reconnect it to the mains
electricity supply.
• Connect a NEC Class 2 or Limited Power Source (LPS) and
SELV rated power supply to the interface, respect the polarity
if DC power. Apply always a voltage within the range admitted
by the interface and of enough power (see technical features).
• Circuit-breaker must be used before the power supply. Rating
250V-6A.
• Reconnect power supply to the KNX bus.
•
Follow the instructions on the user’s manual for configuring
and commissioning the interface.
3 CONFIGURATION INSTRUCTIONS
•
Download the technical documentation and file
ATW-KNX-02_v...
from:
www.hitachiaircon.es:8080/HapeWeb
PMML0426A rev.3 - 05/2016
1
PMML0426A rev.3 - 05/2016
ENGLISH
