Hitachi UTOPIA R32 Series User Manual

50
PMEN0654 rev.0 - 12/2023
12
GENERALCONSIDERATIONS
H-LINK II SYSTEM
12.1 General consideraons
The H-LINK II system can not be applied to the cycle with the old H-LINK model.
1 Applicaon
The H-LINK II connecng each indoor unit and outdoor unit for up to 64 refrigerant cycles, and
connecng wires for all indoor units and all outdoor units in series.
2 Specicaons
✓ Transmission Wire: 2-Wire.
✓ Polarity of transmission wire: Non-Polar wire.
✓ Maximum number of outdoor units to be connected: 64 units per H-LINK II system.
✓ Recommended number of indoor units to be connected: 64 Units per H-LINK II system.
✓ Maximum wiring length: total 1000 m (including CS-NET). In case that the total wiring length
is longer than 1000 m, contact the Hitachi dealer.
✓ Recommended cable: twist pair cable with shield, over 0.75 mm2 (Equivalent to KPEV-S).
✓ Voltage: 5 V.
Do not make a wiring in a loop.
3 DSW seng of indoor PCB and outdoor PCB.
It is recommended to set dip switches of every indoor unit and outdoor unit.

Hitachi UTOPIA R32 Series Specifications

General

Brand	Hitachi
Model	UTOPIA R32 Series
Category	Air Conditioner
Language	English