Hitachi RCD-2.0FSNE, Installation And Operation Manual, Page: 40 / 374

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PMGB0126A rev.2 - 11/2006
ELECTRICAL WIRING
13.3.4. SINGLE, TWIN, TRIPLE AND QUAD DIP SWITCH SETTING
Dip Switch Setting (No H-Link example:)
SINGLE TWIN TRIPLE QUAD
Dip switch setting (H-Link example)
Mark Description

DSW5 (End Terminal Resistance)

DSW4 (Refrigerant Cycle)

Outdoor Unit

Indoor Units

DSW5 (Refrigerant Cycle)

RSW (Indoor Unit Address)
Unit
Name of Dip
Switch
Mark
Setting Before
Shipment
Function
Outdoor
Unit
Refrigerant
Cycle
DSW4
For setting refrigerant cycle address of outdoor unit. Set the DSW4 not to overlap
the setting of other outdoor units in the same H-LINK system
End Terminal
Resistance
DSW5-1P
For matching impedance of transmission circuit. Set the DSW5 according to the
quantity of outdoor units in the H-LINK system.
Setting of End Terminal Resistance
Before shipment, No.1 pin of DSW5 is set at the “ON” side.
In the case that the outdoor units quantity in the same H-link is 2 or more, set No.1
pin of DSW5 at the “OFF” side from the 2nd unit. If only one outdoor unit is used,
no setting is required.
Indoor Unit
Refrigerant
Cycle
DSW5
For setting refrigerant cycle address of indoor unit. Set the DSW5 corresponding to
the address of outdoor unit in the same refrigerant cycle.
Indoor Unit
Address
RSW
For setting indoor unit address. Set the RSW not to overlap the setting of other
indoor units in the same refrigerant cycle.
-
-
1 2
1 2 3 4
Cycle Nº0 Cycle Nº1 Cycle Nº2
Before
shipment Cancelation Cancelation
1 2 3 4