Hitachi Utopia PAS-3HVRG, Руководство по обслуживанию

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1-2
TROUBLESHOOTING
(c) Refrigerant Cycle No. Setting (DSW5)
Setting is required.
Setting position before shipment is all OFF.
(d) Fuse Recover (DSW7)
* No Setting is required.
Setting position before shipment is all OFF.
* In the case of applying high voltage to the terminal
1, 2 of TB2, the fuse (0.5A) on the PCB, is cut.
In such a case, firstly correct the wiring to TB2,
and then turn on No.1 pin.
<RPI, RCD and RPC Models>
(A) Position of Dip Switches
(B) The PCB in the indoor unit is equipped with 4 types of dip switches and rotary switch. Before testing
unit, set these dip switches according to the following instructions. Unless these dip switches are set
in the field, the unit can not be operated.
(a) Unit No. Setting (RSW)
Setting is required. Set the unit No. of all indoor units respectively and serially, by following setting
position shown in the table below. Numbering must start from “0” for every outdoor unit.
(b) Capacity Code Setting (DSW3)
No setting is required, due to setting before shipment. This switch is utilized for setting the capacity
code which corresponds to the Horse Power of the indoor unit.
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
Rotary
Switch
Setting
Rotary
Switch
Setting
No.0
Unit No. 1
Unit No. 2
Unit No. 3
Unit No. 4
Unit No.5
Unit No. 6
Unit No. 7
Unit
No. 8
Unit No. 9
Unit No. 10
Unit No. 11
Unit No. 12
Unit No. 13
Unit No. 14
Unit No. 15
Unit
Setting Position
Set by inserting slotted
screwdriver into the groove
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
0 1 2
3
4
5
67
8
9A
B
C
E
F
D
1 2
ON
OFF
1 2
ON
OFF
1 2 3 4
ON
OFF
SW1
RSW
DSW6
DSW5
DSW3
PCB for Indoor Unit
1 2 3 4
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
ON
OFF
Setting
Position
2.5 3.0 4.0 5.0 Horsepower