Hitachi PC-ARF Technical Catalogue page 313
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Also See for PC-ARF:
- Installation and operation manual (350 pages) ,
- Installation and operation manual (41 pages)
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5 Centralised remote controls
PSC-A32MN
•
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
-
(16-pole Rotary
Switch)
1
DSW1
2
(4-pole DIP
switch)
3
4
1
DSW2
(2-pole DIP
switch)
2
SW1
N O T E
•
Turn OFF the power supply when setting the DIP switches and the rotary switch. Do not touch the printed circuit board and metal parts
directly to avoid malfunction of the central station.
•
When switching the setting for H-LINK II support, perform a checking procedure following "Checking Connection".
•
If DSW1-1 is misconfigured, alarm 63 (Central Device Combination Fault) will be emitted from a central control device with H-LINK
support. In this case, turn OFF the power supply for all central control devices and correct the settings of each central control device.
Then, restart the central control devices.
•
(*): When using several central stations at the same time, set the values of each "RSW1" not to overlap.
297
TCGB0106 rev.0 - 12/2014
Usage
For address setting of central station
ON: Setting for no H-LINK II support
OFF: Setting for H-LINK II support
OFF (Fixed)
OFF (Fixed)
OFF (Fixed)
ON: Terminating resistance enabled
OFF: Terminating resistance disabled
ON: Protection fuse for H-LINK ...
Disabled
(Short-circuited)
OFF: Protection fuse for H-LINK ...
Enabled
(Normal)
ON: Turn the central station ON
OFF: Turn the central station OFF
Factory
Remarks
Setting
When using multiple central stations units.
0
(*)
OFF
Refer to the specific table
OFF
Not used
OFF
Not used
OFF
Not used
Make sure that no other terminating resist-
ance exists on the same H-LINK when
OFF
enabling the terminating resistance from the
central station.
OFF
ON
5
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Troubleshooting
