Hitachi YUTAKI S80 Série Manuel D'utilisation page 31

ELECTRICAL AND CONTROL SETTINGS
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DSW1: Additional setting 0
Factory setting. No setting is required.
1~ 230V 50Hz
Factory setting
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DSW2: Unit capacity setting
No setting is required.
4.0 HP 5.0 HP
DSW3: Additional setting 1
Setting before shipment
1-step heater for 3-phase unit
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DSW4: Additional setting 2
Setting before shipment
DHW defrost
Heater forced OFF
Unit and installation pipes antifreeze
protection
Standard / ECO water pump operation
Electric heater or boiler emergency mode
DHW tank's heater operation
Open SV1/2 for vacuum and R-410A
refrigerant recovery function
Disabled R-134a compressor
21 PMML0340B rev.1 - 03/2016
3N~ 400V 50Hz
6.0 HP
7 8
7 8
7 8
7 8
7 8
7 8
7 8
7 8
7 8
!
C A U T I O N
• Never turn all DSW4 dip switch pins ON. If this happens, the software
of the unit will be removed.
• Never activate "Heater Forced OFF" and "Electric heater or boiler
emergency mode" at the same time.
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DSW5: Additional setting 3
In the cases where the outdoor unit is installed into a location
where its own outdoor ambient temperature sensor can not
give a suitable temperature measurement to the system, it
is available the 2nd outdoor ambient temperature sensor as
accessory. By means of DSW1&2 setting, the preferable sensor
for each circuit can be selected.
Factory setting
Outdoor unit sensor for circuits 1 and 2.
Outdoor unit sensor for circuit 1; Auxiliary
sensor for circuit 2.
Auxiliary sensor for circuit 1; Outdoor unit
sensor for circuit 2.
Auxiliary sensor instead of outdoor unit
sensor for both circuits.
4-20 mA setting temperature
(Only manual operation)
Use the maximum temperature value
between Two3 (boiler / heater thermistor) and
Two (water outlet thermistor) for water control
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DSW6: Not used
Factory setting
(Do not change)
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DSW7: Additional setting 4
Factory setting (RWH-(V)NFE)
Factory setting (RWH-(V)NFWE)
Integrated DHW tank version
Defrost for the water electric heater