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Hitachi RASC UTOPIA RCI-2.0FSN1E Installations- Und Betriebshandbuch Seite 39

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ELECTRICAL WIRING
13.3.3. H-LINK SYSTEM
1. Application:
The new H-LINK wiring system requires only two transmission
wires connecting each indoor unit and outdoor unit for up to
16 refrigerant cycles, and connecting wires for all indoor units
and all outdoor units in series.
NOTE:
The H-LINK system can not be applied to the cycle with the
-
old model unit or the unit with old transmission
This H-LINK system can be applied to the following models.
Indoor Unit
RCI-OOOFSN1E
RCD-OOOFSNE
RPC-OOOFSNE
RPI-OOOFSN1E
RPK-OOOFSNM/FSN1M
RPF-OOOFSNE
RPFI-OOOFSNE
2. Features:
The H-LINK has the following features and specifications:
Features:
The total wiring length is remarkably reduced.
-
Only one connection is required for the wiring between the
-
indoor unit and outdoor unit.
Easy wiring connection to the central controllers
-
Specifications:
Transmission Wire: 2-Wire
-
Polarity of Transmission Wire: Non-Polar Wire
-
Maximum Outdoor Units To Be Connected: 16 Units per
-
H-LINK system.
Maximum Indoor Units To Be Connected: 16 Units per
-
cycle and 64 Units per H-LINK system
Maximum Wiring Length: Total 1000m (including CS-NET)
-
Recommended Cable: Twist Pair Cable with Shield, over
-
0.75 mm2 (Equivalent to KPEV-S)
Voltage: DC5V
-
3. System Example of H-LINK:
Using H-LINK System For Only Air Conditioners:
There are two typical cases of using H-LINK system;
(1) Using H-LINK System For Only Air Conditioners, and
(2) Using H-LINK System For Air Conditioners With Central
Control Device, and the system examples are as shown
below
Downloaded from
www.Manualslib.com
Outdoor Unit
RASC-OOOHNE
manuals search engine
Line Connection with All units
Outdoor
Units
Indoor
Units
Line Connection for Each Floor
Outdoor
Units
Indoor
Units
In case that H-LINK is not applied when electrical wiring is
-
performed
Outdoor
Units
Indoor
Units
CS-NET
NOTE:
Do not make a wiring in a loop.
-
In the case that H-LINK is not applied after the when
-
electrical wiring is performed as shown above, H-LINK is
applied after the instrument wiring is completed. Therefore,
the dip switches are required to be set according to "Setting
of Dip Switches on PCB".
4. Dip Switch Setting of Indoor PCB and Outdoor
PCB.
It is required to set dip switches of every indoor unit and
outdoor unit.
PMGB0126A rev.2 - 11/2006
Do not make
wiring in a
loop
27

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