Hitachi RAS-5FSNY2E [25/148] No t e

2 Features and benets

TCGB0068 rev.1 - 08/2012

Specications

Transmission cable: 2-core

Transmission cable polarity: No polarity

Maximum number of outdoor units connected: 64 units per H-LINK II system

Maximum number of indoor units connected: 160 units per H-LINK II system

Maximum number of units: 200

Maximum wiring length: Total 1,000 m (including CSNET-WEB)

Recommended cable:

Shielded twisted pair cable or shielded pair cable over 0.75 mm

(equi-

valent to KPEV-S)

Voltage: 5 V DC

NOTE

• The DIP switches must be adjusted when the H-LINK II bus is used. If they are set incorrectly, a transmission

error may occur.

• The H-Link II system offers a high level of exibility for the design of air conditioning systems, due to its sim-

ple installation and the low total cost. Furthermore, centralised management is possible by connecting the

CSNET-WEB control system to the H-LINK II network cables.

• Additionally, using CSNET-WEB, it is possible to manage the installation over the internet.



No operating cable for the remote control

In the case of multiple systems the indoor units can be controlled

using a single remote control switch without having to join them

with an operating cable for the remote control.

A. Operation wiring.

B. An operating cable is not required for using the remote control

switch.

N O T E

• When using the H-LINK II system, DIP switches have to be adjusted. If the DIP switches are not set or set inco-

rrectly, an alarm may occur due to transmission failure. Total wiring length for the remote control switch can

be extended to up to 5,000 m. If total wiring length is less than 30 m, it is possible to use the normal wiring (0.3

mm²).

• The H-LINK II system provides maximum exibility for system design; installation is easy, and total costs are

reduced. Furthermore, it can be controlled centrally by connecting CS-NET WEB to H-LINK II wiring.

• You can also control the installation by Internet via CS-NET WEB.