Hitachi RCD-2.5FSG1, Service Manual

Page: 14 / 384

1-4
TROUBLESHOOTING
<In Case of 24 and 30HP>
1 2 3 4
ON
DSW1 Ref. System No. Setting
When H-Link is used, setting
is required.
No.0 Unit Setting Condition
Set the unit number of outdoor unit
at each refrigerant cycle.
(Setting before shipment is unit 0.)
SR
1 2 3 4
ON
DSW2 Capacity Setting
RAS-24FSG1
RAS-24FS5 RAS-30FSG1
RAS-30FS5
1 2 3 4
ON
NSR
1 2 3 4 5 6
ON
DSW4
SR
B.S.
1 2 3 4 5 6
ON
Cooling
1 2 3 4 5 6
ON
Heating
1 2 3 4 5 6
ON
Enforced
Compressor
Stop
1 2 3 4 5 6
ON
Except No.1
Compressor
Operation
1 2
ON
DSW3 Height Difference
* The O.U. is located higher than I. U.
(0 to 50m)
* The O.U. is located lower than I.U.
(0 to 20m)
* The O.U. is located lower than I.U.
(20 to 40m)
B.S.
1 2
ON
SR
1 2
ON
DSW6 Piping Length
B.S.
0 to 25m 25 to 50m
1 2
ON
50 to 75m
1 2
ON
75 to 120m
1 2
ON
SR
SR
SR
1 2 3 4 5 6 7 8
ON
DSW5 Option Function 1
SR
B.S.
Setting Item Pin No.
#1
#2
#3
#4
#5 Defrosting Condition Change for Cold Area
#8 Combination of Indoor Units are more than 16
Circulator Function of Heating Thermo-OFF
Night Shift (Low Noise)
Cancellation of Outdoor Ambient Temp. Limit of Heating
Cancellation of Outdoor Ambient Temp. Limit of Cooling
1 2 3 4
ON
Set the pin at the ON side at emergency
operation.
B.S.
NSR NSR
1 2
ON
DSW8
Trial/Service 2
Trial/Service 1
B.S.
Exchanged
Compressor Operation
1 2
1 2
ON
1 2
ON
DSW10
Transmitting
B.S.
Cancellation of
End Resistance
1 2
ON
Short Circuit
of Fuse
1 2
ON
DSW7 Comp. Emergency Operation
B.S.: Before Shipment, NSR: No Setting is Required, SR: Setting Required
Setting Item Pin No.
#1
#2
Except No.2 Comp. Operation
Except No.3 Comp. Operation
#3 Except No.4 Comp. Operation
#4 Except No.5 Comp. Operation
Setting Item Pin No.
#2
Power Supply
(415V: ON, 380V and 220V: OFF)
#3
Power Supply
(220V: ON, 380V and 415V: OFF)
1 2 3 4
ON
B.S.
DSW9 Optional Function 2
Manual Defrosting
for Checks
PSW1
PSW2 PSW3
Push Switch
DSW1 DSW2 DSW3 PSW1 PSW2 PSW3
DSW6 DSW7 DSW8 DSW9
DSW4 DSW5
Dip Switch Arrangement
SEG2 SEG1
Each outdoor unit is set as shown
below before shipment.
This dip switch is used when trial or servicing operation
is performed.
Set the dip switch according to your requirements.
Set the dip switch according to your requirements.