Hitachi PSC-A1T Technical Catalogue

8
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
CAUTION
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) RSW1 (one digit) Example: Setting cycle number to 15
Set it inserting a
screwdriver
Position
DSW1 RSW1
DSW1 and RSW1 are set to 0 before shipment.
Up to 15 cycle numbers can be set
Pin number 1 is
ON
The set position
is 5
4 Unit No. is set by RSW2 and DSW2.
Unit No. Setting
DSW2 (ten digit) RSW2 (one digit) Example: Setting unit to 15
Set it inserting a
screwdriver
Position
DSW1 RSW1
DSW2 and RSW2 are set to 0 before shipment.
Up to 15 units number can be set
Pin number 1 is
ON
The set position
is 5
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.
Main setting
Setting before shipping
(Sub setting)
DSW3 DSW3
8 Control support devices
PSC-6RAD
TCGB0106 rev.0 - 12/2014
715

Hitachi PSC-A1T Specifications

General

Brand	Hitachi
Model	PSC-A1T
Category	Controller
Language	English