Hitachi FSG Series, Technical Catalogue

Page: 397 / 424

TROUBLESHOOTING
18
/5
Although the wireless controller is used for wall type indoor
unit with built-in receiver part, the alarm code can be
checked by connecting PC-P1HE .
?
NOTE:
1. The unit is not operated by pressing operation switch.
2. The above function is available only when alarm
occurs.
3. The PCB check by remote controller is not available.
4. The indication is the data when connecting PC-P1H,
not the data before the alarm occurs.
18.3.1 CONTENTS OF CHECK MODE 1
The next indication is shown by pressing the part "
}
" of
"TEMP" switch. If the part "
~
" of "TEMP" switch is pressed,
the previous indication is shown.
Temperature indication
b1 22
1
Indoor Unit Temp.
Setting (°C)
¯
b2 20
2
Indoor Unit
Intake Air Temp.
at Thermistor (°C)
¯
b3 55
3
Indoor Unit
Discharge Air Temp.
at Thermistor (°C)
¯
b4 20
4
Indoor Unit Heat
Exchanger Liquid pipe
Temp °C
¯
b5 25
5
Temperature at
Remote Sensor (°C)
¯
b6 10
6
Outdoor Unit Ambient
Temp. (°C)
¯
b7 25
7
Indoor Unit Heat
Exchanger Gas Pipe
Temp. (°C)
¯
b8 02
8
Outdoor Unit
Evaporating Temp.
during Heating (°C)
¯
b9 --
9 Control Information
¯
bA 41
10
Discharge Gas Temp.
at the Top of Comp.
Chamber (°C)
¯
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Normal
Abnormal
. . .
Temperature displayed
– –
129
(Thermistor Open circuited
or PCB defected)
(Temp. for Top of Comp.)
FF
or
(Thermistor Short circuited
or PCB defected)
255
or
Indication of Category Code
Indication of Temperature, etc
Connector for
Check
Suction Grille
This indicates the internal information for the remote control switch.
In case of SET-FREE, this indication shows the operating
compressor quantity.
(Ex.) During several compressors operation, average temperature
of two compressors is indicated
In case that temperature is higher than 126°C, "
126
"
127
or
(Temp. for Top of Comp.)
See "18.6 Self-Checking of PCB's
using Remote Control Switch"
During transient periods such as starting
time, etc., "
--
" or "
00
" may be indicated
for a limited time.
This is indicated only when a remote sensor is connected.
The indication of "--" is normally indicated.
RPK series can not connect a remote sensor.
Therefore, indication is "--".