Dip Switch Setting - Hitachi airCore 700 Operation Installation Maintenance Manual

7.4 DIP Switch Setting

1. Turn OFF all the power supplies to both
indoor and outdoor units before DIP
switch setting. Otherwise, the setting is
invalid.
2. The positions of the DIP switches on the
PCB are shown in the figure right. Open
the electrical box cover. After the DIP
switches are set, attach the electrical box
cover again.
3. Unit number setting (DSW6)
The indoor unit numbers of all indoor units are not required. The indoor unit numbers are set by
the auto-address function. If the indoor unit number setting is required, set the unit numbers. of all
indoor units respectively and serially by the following setting position.
DSW6 (1st , 2nd digit) Unit number setting
Set the position
Set the position
Before delivery, the 1st and 2nd digit of
DSW6 are set to "0".
4. Region identification, human sensor and low air volume setting
DSW6 (4th digit), RSW1(Region Identification)
DSW6 (4th digit) RSW1 (units digit)
Set the position
Set the position
ON
OFF
1 2 3 4 5 6
Before delivery, DSW6 and RSW1 are set according to
the region's requirement, and the a er-sales
replacement of PCB needs to be set according to
the region's requirement.
5. Capacity code setting (DSW3)
No setting is required as these have been preset at the factory at time of production. These switches
have been set according to the capacity of the indoor unit.
3.0
6. Unit type code setting (DSW4)
As this is already set before shipment, no setting is required. This switch is used for setting the unit
type code which corresponds to the type of the indoor unit.
ON
OFF
1 2 3 4 5 6
ANZ
DSW6
Insert a flat head screw
driver into the set
position in the trench
ON
OFF
1 2 3 4 5 6
Set No. 4 to OFF
RSW1
Set to "0"
4.0
DSW4
DSW4
DSW3
DSW9
DSW9
DSW5
DSW7
No.1 Unit No.2 Unit
DSW6 (3rd digit) Human sensor setting
Set the position
ON
OFF
1 2 3 4 5 6
Before delivery, the 3rd digit of DSW6 is
set to "0". Set the 3rd digit of DSW6 to "1"
when installing human sensor.
5.0 6.0
PPIH
ON
OFF
1 2 3 4
-18-
7. Electrical Wiring
DSW3 DSW6
DSW6
DSW5
DSW7
No.4 Unit
No.3 Unit
DSW6 (6th digit) Low air volume setting
Set the position
1 2 3 4 5 6
Before delivery, the 6th digit of DSW6 is
set to "0". Set the 6th digit of DSW6 to"1"
when setting low air volume.
6.5
ON
OFF