13.5 H-LINK II SYSTEM
The H-LINK II is the wiring connection system between units.
The H-LINK II wiring system only needs:
• Two transmission wires connecting each indoor and outdoor
unit for a total of 64 refrigerant cycles.
• Connection wiring for all indoor and outdoor units in series.
13.5.1 Application
The H-LINK II system can be applied to the following models:
Indoor Unit
Outdoor Unit
System Free
RCI
RAS-(4-6)FS(V)N(Y)3E
RCIM
RCD
RPI
RPIM
RPK
RPF
RPFI
RPC
!
C A U T I O N
The H-LINK II system cannot be applied to the models with the old cycle,
nor to units with an old transmission.
13.5.2 Features
• The total wiring length is considerably reduced compared to
traditional connections.
• Only one connection is required for the wiring between the
indoor and outdoor units.
• The wiring connection of the complementary central control
devices is easy.
?
N O T E
CSNET WEB / CSNET Manager is centralized control system which al
-
lows the installation to be controlled remotely. They can be connected at
any point of the local corporate network, or even via the Internet.
13.5.3
Specifications
• Transmission cable: 2-wire.
• Polarity of transmission cable: non-polar wire.
• Maximum number of indoor units that can be connected: 4
units per cycle and 160 units per H-LINK II system.
• Maximum wiring length: total 1000 m (including CSNET WEB
/ CSNET Manager).
• It is possible to increase the maximum wiring length up to
5000 m by using up to four PSC-5HR units.
• Recommended cable: shielded twisted pair cable, over
0.75 mm
2
(Equivalent to KPEV-S).
• Voltage: 5 V DC.
!
C A U T I O N
For the H-LINK II system must use twisted shielded pair cable or shielded
pair cable
CSNET WEB /
CSNET MANAGER
A refrigerant cycle
Transmission cables
Refrigerant piping
Outdoor unit
Indoor units
ELECTRICAL WIRING
PMML0354A rev.1 - 03/2015
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