Dip Switch Setting - Hitachi PC-ARF Technical Catalogue

8 Control support devices
PSC-6RAD

8.2.3.5 DIP Switch setting

1 Dip Switch setting should be performed with the power of room air-conditioner OFF. The setting contents are invalid if
it is performed with the power ON.
2 Installation position of Dip Switch is as below.
DSW1 Refrigerant cycle No. setting
DSW2 Unit No. setting
LED H-LINK transmission
DSW3 Sub setting
DSW4 Fuse recovery, terminal resistance setting
RSW1 Refrigerant cycle No. setting
RSW2 Unit No. setting
C A U T I O N
Do not turn ON various pins of DSW1 and DSW2.
3 Refrigerant cycle No. is set by RSW1 and DSW1.
Refrigerant Cycle number Setting
DSW1 (ten digit)
DSW1 and RSW1 are set to 0 before shipment.
Up to 15 cycle numbers can be set
4 Unit No. is set by RSW2 and DSW2.
Unit No. Setting
DSW2 (ten digit)
DSW2 and RSW2 are set to 0 before shipment.
Up to 15 units number can be set
5 Sub Setting
In case of setting various RAC adapters in the same refriger-
ant cycle, set the RAC adapter with smallest Unit No. as a
main.
In case of only one RAC adapter in a refrigerant system, this
adapter should be a main. Set by changing DSW3.
715
TCGB0106 rev.0 - 12/2014
RSW1 (one digit)
Set it inserting a
screwdriver
Position
RSW2 (one digit)
Set it inserting a
screwdriver
Position
Example: Setting cycle number to 15
DSW1
Pin number 1 is The set position
ON
Example: Setting unit to 15
DSW1
Pin number 1 is The set position
ON
Setting before shipping
Main setting
(Sub setting)
DSW3
RSW1
is 5
RSW1
8
is 5
DSW3