Hitachi PSC-A1T - Page 241

Main breaker switch
Model Supply voltage
Maximum current
(A)
ELB(1) CB(2)
Rated current (A) Sensitivity (mA) Rated current (A)
PC-A64GT 1~ 230V 50 Hz
5 40 30
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(1) ELB: earth leakage breaker (eld-supplied)
(2) CB: circuit breaker (eld-supplied)
CAUTION
When using an AC200V to 240V power supply.
PSC-A64GT
Pull box
To outdoor unit or power
circuit breaker
Indoor units
• In case of using a 200V~240V power supply, diverge the main power supply cables by using a pull box as shown in the gure.
• The electricity supply to the unit should be via an exclusive power control switch and protective circuit breaker, certied 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 tted, there is a risk of electric
shock and/or re.
• Install an earth leakage breaker, fuse and circuit breaker for each outdoor unit power line. Not tting it may cause an electric shock
or re.
DANGER
• 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 re, electrical shock or device breaking down.
• Do not use cables that are lighter than the normal exible 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. Usage
Factory
Setting
Remarks
RSW1
(Rotary Switch
16-poles)
- For address setting of central station 0
When using multiple units of the cen-
tral stations. (*)
DSW1
(Dip Switch 4-poles)
1
ON: Setting for Non-H-LINK II
OFF: Setting for H-LINK II
OFF Refer to the chart in the next page.
2 OFF (Fixed) OFF Not Used
3 OFF (Fixed) OFF Not Used
4 OFF (Fixed) OFF Not Used
DSW2
(Dip Switch 2-poles)
1
ON: Terminating Resistance Enable
OFF: Terminating Resistance Disable
OFF
Make sure no other terminating resist-
ance exists on the same H-LINK when
enabling the terminating resistance
from the central station.
2
ON: Protection Fuse for H-LINK ... Disable
(Short-circuited)
OFF: Protection Fuse for H-LINK ... Enable
(Normal)
OFF
SW1 -
ON: Turn ON Central Station
OFF: Turn OFF Central Station
ON
5 Centralised remote controls
PSC-A64GT
TCGB0106 rev.0 - 12/2014
225
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