Hitachi FSG Series Service Manual page 11

n DSW1: Refrigerant cycle no. setting
Setting is required if H-Link is used. Setting position before
shipment are all OFF (Refrigerant cycle No. 0). In the same
Refrigerant Cycle set the same refrigerant cycle no. for the
outdoor unit and for the indoor units as shown below.
0
Cycle No.
21 21
Setting
2)) 2))
Position
Cycle No. 4
Setting 21 21
2)) 2))
Position
8
Cycle No.
21 21
Setting
2)) 2))
Position
12
Cycle No.
21 21
Setting
2)) 2))
Position
n DSW2: Capacity settings
Not setting is required. Each outdoor unit is set as shown
before shipment.
Setting
R22
Position
21
RAS-5FS3
2))
21
RAS-8FS3
2))
21
RAS-10FS3
2))
21
RAS-16FS3
2))
21
RAS-20FS3
2))
n DSW3: High difference
Setting is required
ΠSetting Before shipment
ΠThe Outdoor Unit is located higher than
Indoor Unit (0~50m)
ΠThe Outdoor Unit is located lower than
Indoor Unit (0~20m)
ΠThe Outdoor Unit is located lower than
Indoor Unit (20~40m)
1 2 3
21 21
2)) 2))
5 6 7
21
O N
2))
OFF
9 10 11
21
21
2)) 2))
13 14 15
21 21
2)) 2))
Setting
R407C
Position
21
RAS-5FSG
2))
21
RAS-8FSG
2))
21
RAS-10FSG
2))
21
RAS-16FSG
2))
21
RAS-20FSG
2))
21
2))
21
2))
TROUBLESHOOTING
n DSW4: Test Operation & Service Settings
Setting is required. This dip switch is utilized for test
operation or when servicing operation is performed.
ΠSetting before shipment
ΠTest Cooling Operation
ΠTest Heating Operation
ΠEnforced Compressor Stop
n DSW5: Optional Function Setting
Setting is required. Set the dip switch according to your
requirements.
ΠBefore shipment
ΠPower Supply 380/50-60 Hz
ΠCirculator Function of
Heating Thermo OFF
ΠNight Shift (Low noise)
ΠCancellation of Outdoor
amb. temp. limit of Heating
ΠCancellation of Outdoor
amb. temp. limit of Cooling
ΠDefrosting condition
change for Cold Area
ΠPower Supply 415/50 Hz
ΠPower supply 220/60Hz
n DSW6: Piping Length
ΠBefore shipment and length < 25 m
Œ 25 ˆ Total length < 50
Œ 50 ˆ Total length < 75
Œ 75 ˆ Total length < 100
1
3
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))
21
2))