Hitachi PC-ARF Technical Catalogue page 241

5 Centralised remote controls
PSC-A64GT
Main breaker switch
Model Supply voltage
PC-A64GT 1~ 230V 50 Hz
(1) ELB: earth leakage breaker (field-supplied)
(2) CB: circuit breaker (field-supplied)
C A U T I O N
When using an AC200V to 240V power supply.
• In case of using a 200V~240V power supply, diverge the main power supply cables by using a pull box as shown in the figure.
• The electricity supply to the unit should be via an exclusive power control switch and protective circuit breaker, certified and installed
in accordance with local or national safety regulations.
• Use an earth leakage breaker with medium sensitivity, and an activation speed of 0.1 or less. If this is not fitted, there is a risk of electric
shock and/or fire.
• Install an earth leakage breaker, fuse and circuit breaker for each outdoor unit power line. Not fitting it may cause an electric shock
or fire.
D A N G E R
• Turn OFF the main power switch for the indoor units, outdoor units, and central stations before the electrical wiring work is performed.
If not, it may cause a fire, electrical shock or device breaking down.
• Do not use cables that are lighter than the normal flexible coated polychloroprene cable (code H05RN-F).

DIP switch adjustment
The list for switch settings of central stations is shown in the following table.
1 Apply switch settings as appropriate.
Switch Switch No.
RSW1
-
(Rotary Switch
16-poles)
1
DSW1
2
(Dip Switch 4-poles)
3
4
1
DSW2
(Dip Switch 2-poles)
2
SW1 -
225
TCGB0106 rev.0 - 12/2014
Maximum current
(A)
Rated current (A)
5
To outdoor unit or power
circuit breaker
Pull box
PSC-A64GT
Indoor units
Usage
For address setting of central station
ON: Setting for Non-H-LINK II
OFF: Setting for H-LINK II
OFF (Fixed)
OFF (Fixed)
OFF (Fixed)
ON: Terminating Resistance Enable
OFF: Terminating Resistance Disable
ON: Protection Fuse for H-LINK ... Disable
(Short-circuited)
OFF: Protection Fuse for H-LINK ... Enable
(Normal)
ON: Turn ON Central Station
OFF: Turn OFF Central Station
ELB(1)
Sensitivity (mA)
40 30
Factory
Setting
When using multiple units of the cen-
0
tral stations. (*)
OFF Refer to the chart in the next page.
OFF Not Used
OFF Not Used
OFF Not Used
Make sure no other terminating resist-
ance exists on the same H-LINK when
OFF
enabling the terminating resistance
from the central station.
OFF
ON
CB(2)
Rated current (A)
5
5
Remarks