Hitachi UTOPIA IVX PREMIUM Série Manuel D'installation Et De Fonctionnement page 39

Electrical wiring
15.3.4 System installation DIP Switch Setting
Dip Switch Setting of Indoor PCB and Outdoor PCB for H-LINK II
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It is required to set dip switches of every indoor unit and outdoor unit and match of the transmission circuit impedance.
• Dip Switch Setting Example:
DSW5
Terminating Resistance
DSW4
Refrigerant Cycle Nº
(Setting for ten digit)
RSW1
Refrigerant Cycle Nº
(Setting for last digit)
Outdoor units
Indoor units
DSW5
Refrigerant Cycle Nº
(Setting for ten digit)
RSW2
Refrigerant Cycle Nº
(Setting for last digit)
DSW6
Indoor unit Address
(Setting for ten digit)
RSW1
Indoor unit Address
(Setting for last digit)
Unit Name of Dip Switch
Refrigerant Cycle
Outdoor Unit
Terminating Resistance DSW5
Refrigerant Cycle
Indoor Unit
Indoor Unit Address
39
_PMML0251A_r2.indb 39
Cycle nº 0
Setting Before
Mark
Shipment
DSW4 RSW1
DSW4
RSW1
DSW5 RSW2
DSW5
RSW2
DSW6 RSW1
DSW6
RSW1
PMML0251A rev.2 - 02/2013
Cycle nº 2
Cycle nº 1
Function
For setting refrigerant cycle address of Outdoor Unit. Set the DSW4
and RSW1 not to overlap the setting of other Outdoor units in the same
H-LINK system
For matching impedance of transmission circuit, set the DSW5 accord-
ing to the quantity of outdoor units in the H-LINK system.
For setting refrigerant cycle address of indoor units. Set the DSW5 and
RSW2 corresponding to the address of outdoor unit in the same refriger-
ant cycle.
For setting indoor unit address. Set the DSW6 and RSW1 not to overlap
the setting of other indoor units in the same refrigerant cycle. (If not set,
the automatic address function is performed).
06/02/2013 9:05:14