Hitachi ATW-KNX-01 Quick Start Manual

ENGLISH
PMML0242A rev.0 - 04/2013
INTERFACE ATW-KNX-01
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 AC indoor unit.
1 SAFETy INSTRuCTIoNS
• This interface must be installed by accredited technical per-
sonnel (electrician, KNX installer, or authorized technical per-
sonnel) and following all the safety instructions given here
and in accordance always with the country legislation for ins-
tallation of electric equipment.
• This interface cannot be installed outdoors or exposed to di-
rect solar radiation, water, high relative humidity or dust and
must only be installed in a restricted access location.
• Before manipulating the AC indoor unit, be sure it is comple-
tely disconnected from the mains electricity supply.
• Disconnect always from the mains electricity supply any wi-
res from the KNX bus, the AC 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 cha-
racteristics).
• Respect always the expected polarity of power and communi-
cation cables when connecting them to the interface.
2 INSTALLATIoN INSTRuCTIoNS
• Disconnect the Air Conditioner from the mains electricity su-
pply.
• 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
AC indoor unit following the instructions of the installation
diagram.
• Connect the KNX bus to the connector KNX of the interface.
Respect polarity.
3 CoNFIGuRATIoN INSTRuCTIoNS
• Download the Operation Manual TCGB0084 and project file ATW-KNX-01_v0.2. from:
www.hitachiaircon.es:8080/HapeWeb
01 PMML0242A rev.0 - 04/2013
• In case of installation of the interface inside the AC 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 befo-
re touching the unit.
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.
• Close the AC indoor unit and reconnect it to the mains elec-
tricity supply.
• Connect a NEC Class 2 or Limited Power Source (LPS) and
SELV rated power supply to the interface, respect the po-
larity 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.