Hitachi RAS-3FSVNE Betriebshandbuch Seite 32

14
ELECTRICAL WIRING
24
14.3.4. SINGLE, TWIN AND TRIPLE DIP SWITCH
SETTING
Dip Switch Setting (No H-Link example):
-
ONE UNIT
NOTE:
For one unit, the rotary switch must start in 0. For two
units, it must start in 1.
Name of Dip
Unit
Switch
Refrigerant
DSW4
Cycle
Outdoor
Unit
End Terminal
DSW5-1P
Resistance
Refrigerant
DSW5
Cycle
Indoor
Unit
Indoor Unit
RSW
Address
TWO UNITS
Setting
Mark Before Function
Shipment
ON
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.
1 2 3 4
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
ON
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
1 2
pin of DSW5 at the "OFF" side from the 2nd unit. If only one outdoor unit is used,
no setting is required.
ON
For setting refrigerant cycle address of indoor unit. Set the DSW5 corresponding to
the address of outdoor unit in the same refrigerant cycle.
1 2 3 4
0
For setting indoor unit address. Set the RSW not to overlap the setting of other
indoor units in the same refrigerant cycle.
Dip switch setting (H-Link example):
-
BEFORE SHIPMENT
Mark Description
DSW5 (End Terminal Resistance)

DSW4 (Refrigerant Cycle)

Outdoor Unit

Indoor Units

DSW5 (Refrigerant Cycle)

RSW (Indoor Unit Address)

CANCELATION