Hitachi SET FREE MINI RAS-4FSNME1 Manuel D'utilisation page 27

ELECTRICAL WIRING
4HP 3-phase 5HP 3-phase
DSW4 / RSW1 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.
DSW5 transmission
setting
Setting not required
DSW6 function selection
Setting not required
Factory setting
DSW7
Setting not required
(not used)

PCB2
DSW1
Setting not required
(not used)
11.3.3 RAS-(8-12)FSXNME1

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
27 PMML0532 rev.1 - 12/2020
6HP 3-phase
Setting example
Refrigerant cycle nº 25
Factory End resistance
setting cancellation
Fixed value setting mode (used
in combination with DSW2-5)
Factory setting
Factory setting
Setting example
Refrigerant cycle nº 25
?
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
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)
10HP 12HP
Factory setting
External input /
output setting
Function setting
Factory setting
Heat pump system