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Hitachi SET FREE mini Instruction Manual page 37

Heat pump system heat pump system heat recovery system
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ELECTRICAL WIRING
11.3.3 RAS-(8-12)FSXNME

PCB1
DSW1: refrigerant system setting
Setting required
Set all the IU and the OU belonging to the same refrigerant
cycle with the same cycle number.
Factory setting
Tens digit
Units digit
?
N O T E
Maximum refrigerant cycle number setting: 63.
DSW2 capacity setting
Setting not required
8HP
DSW3
Setting not required
?
N O T E
Do not change DSW3 setting. Otherwise, it may
cause abnormal operation.
DSW4 test run and service settings
Setting required
Forced compressor
Factory setting
stoppage
Cooling test run
Heating test run
DSW5
Setting not required
37
PMML0511 rev.1 - 06/2019
Setting example
Refrigerant cycle nº 25
10HP
12HP
Factory setting
External input /
output setting
Function setting
Factory setting
DSW6 function setting (low ambient setting)
Setting required
Factory setting
Cooling operation under low load operation
?
N O T E
Make sure to apply snow protection hood.
DSW7 supply voltage and system setting
Setting required
Factory setting (400 v)
(Heat recovery system)
DSW8 high static pressure mode setting
Setting required
Factory setting
?
N O T E
When adopting the air outlet duct (field-supplied), make sure to set DSW8.
DSW10 transmission setting
Setting required
End resistance
Factory setting
cancellation
?
N O T E
(*1) If the fuse (EF1) is melted, set Nº.2 pin to ON for recovery.

PCB2
DSW101
Setting required
INv1
Factory setting
?
N O T E
If cancellation of current detection is set, make sure to return the setting,
after service works.
Heat pump system
HSP setting
Fuse recovery (*1)
Cancellation of current
detection

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