Hitachi RPI-3.0FSNE - Wire Size and Switch Selection Guidelines

ELECTRICAL WIRING
23
 DSW2: Capacity settings
Not setting is required. Each outdoor unit is set as shown
before shipment.
Model
Setting
Position
Model
Setting
Position
RAS-5FSN
ON
1 2 3 4
RAS-8FSN(E)
RAS-8FXN(E)
ON
1 2 3 4
RAS-10FSN(E)
RAS-10FXN(E)
ON
1 2 3 4
RAS-16FSN
RAS-16FXN
ON
1 2 3 4
RAS-20FSN
RAS-20FXN
ON
1 2 3 4
RAS-24FSN
RAS-24FXN
ON
1 2 3 4
RAS-30FSN
RAS-30FXN
ON
1 2 3 4
 DSW3: Height difference
Setting is required
FSN(E)
The Outdoor Unit is located higher than
Indoor Unit (0~50m)
The Outdoor Unit is located lower than
Indoor Unit (0~20m)
ON
1 2
The Outdoor Unit is located lower than
Indoor Unit (20~40m)
ON
1 2
FXN(E)
The Outdoor Unit is located higher than
Indoor Unit (0~20m)
ON
1 2
The Outdoor Unit is located higher than
Indoor Unit (20~50m)
ON
1 2
The Outdoor Unit is located lower than
Indoor Unit (0~20m)
ON
1 2
The Outdoor Unit is located lower than
Indoor Unit (20~40m)
ON
1 2
 DSW4: Test Operation & Service Settings
Setting is required. This dip switch is utilized for servicing.
Setting before shipment
ON
1 2 3 4 5 6
Test Cooling Operation
ON
1 2 3 4 5 6
Test Heating Operation
ON
1 2 3 4 5 6
Enforced Compressor Stop
ON
1 2 3 4 5 6
Combination of Indoor Units more than 16
ON
1 2 3 4 5 6
Operation for Exange Compressor
ON
1 2 3 4 5 6
 DSW5: COMPRESSOR EMERGENCY
OPERATION
Setting is not required. All compressor are running except
compressor selected
Before shipment
ON
1 2 3 4 5 6 7 8
Except Compressor Nº1
ON
1 2 3 4 5 6 7 8
Except Compressor Nº2
ON
1 2 3 4 5 6 7 8
Except Compressor Nº3
ON
1 2 3 4 5 6 7 8
Except Compressor Nº4
ON
1 2 3 4 5 6 7 8
Except Compressor Nº5
ON
1 2 3 4 5 6 7 8
Except Compressor Nº6
ON
1 2 3 4 5 6 7 8
Selection of Input Signal
ON
1 2 3 4 5 6 7 8
Function Setting
ON
1 2 3 4 5 6 7 8
 DSW6: Piping Length
Before shipment and length < 25 m
ON
1 2
25 d Total length < 50
ON
1 2
50 d Total length < 75
ON
1 2
75 d Total length
ON
1 2
 DSW7: Power Supply Setting
Before shipment (380 V)
ON
1 2
220 V
ON
1 2
415 V
ON
1 2
 DSW10: Transmitting Setting
Setting is required for cancellation of end resistance
Before shipment, No. 1 pin of DSW10 is
set at ON side
ON
1 2
In case that Outdoor Unit quantity in the
same H-Link is 2 or more, set No. 1 pin of
DSW10 at the OFF side from 2
nd
Unit. If
only one Outdoor Unit is used, no setting
is required.
ON
1 2
In case of applying high voltage to the
terminal 1, 2 of TB1, the fuse on the PCB
is cut.
In such a case, first connect the wiring to
TB1 and then turn on #2
ON
1 2