Hitachi FSG Series Service Manual page 78

1
TROUBLESHOOTING
70
Checking item
Estimated Running
17 Current of Compressor
MC1
Estimated Running
18 Current of Compressor
MC2
(For 8, 10, 16, 20HP)
Estimated Running
19 Current of Compressor
MC3
(For 16, 20HP)
Estimated Running
20 Current of Compressor
MC4
(For 20HP)
(No, 0 Unit)
Indoor Unit
~
21 Expansion
Valve Opening
(No. F Unit)
(Indicates only the units number connected)
(No, 0 Unit)
Indoor Unit
Heat Exchanger
~
22 Liquid Pipe Temp.
(Freeze protection)
(No. F Unit)
(Indicates only the units number connected)
(No, 0 Unit)
Indoor Unit
~
23 Heat Exchanger
Gas Pipe Temp.
(No. F Unit)
(Indicates only the units number connected)
(No, 0 Unit)
Indoor Unit
~
24 Intake Air
Temperature.
(No. F Unit)
(Indicates only the units number connected)
from Previous Page
”
PSW3
A 1
PSW2
PSW3
A 2
PSW2
PSW3
A 3
PSW2
PSW3
A 4
PSW2
PSW3
÷ E 0
PSW2
~
PSW3
÷ E F
PSW2
PSW3
ó L 0
PSW2
~
PSW3
ó L F
PSW2
PSW3
ó € 0
PSW2
~
PSW3
ó € F
PSW2
PSW3
ó ú 0
PSW2
~
PSW3
ó ú F
PSW2
to next page
PSW2
Indicates running current of primary side of inverter
1 0
PSW3
PSW2
1 2
PSW3
PSW2
1 3
PSW3
PSW2
1 2
PSW3
PSW2
1 2
PSW3
PSW2
1 0
PSW3
PSW2
1 2
PSW3
PSW2
1 2
PSW3
PSW2
1 7
PSW3
PSW2
1 7
PSW3
PSW2
2 7
PSW3
PSW2
2 7
PSW3
000 255
~
000 255
~
000 255
~
000 255
~
(No. 0 Unit)
0 100
~
(No. F Unit)
0 100
~
(No. 0 Unit)
-62 127
~
(No. F Unit)
-62 127
~
(No. 0 Unit)
-62 127
~
(No. F Unit)
-62 127
~
(No. 0 Unit)
-62 127
~
(No. F Unit)
-62 127
~
(A)
(A)
(A)
(A)
(%)
(%)
(°C)
(°C)
(°C)
(°C)
(°C)
(°C)