Hitachi RASC-10HNPE, Руководство по обслуживанию, Страница: 256 / 306

10 Troubleshooting
Troubleshooting in check mode
SMGB0091 rev.2 - 11/2015 246
Although the wireless controller is used for the wall type indoor unit with the built-in receiver part, you can check the
alarm code by connecting the PC-ART.
Suction grille
Connector
for check
?
N O T E
• The unit does not operate by pressing the operation switch.
• The above function is available only when the alarm occurs.
• The PCB check using the remote control switch is not available.
• The indication is the data when you are connecting PC-ART. The indication is not the data before the alarm occurs.

Contents of the check mode 1
The next indication is shown if you press the part “

” of the TEMP switch. If you press the part “

” of the TEMP switch,
the previous indication is shown.
Temperature indication
Indication of the category code
Indication of the temperature, etc
1 Indoor unit temperature setting
(°C)
b1 22
2 Indoor unit air inlet temperature at
thermistor (°C)
b2 20
Normal ...... Temperature displayed
3 Indoor unit discharge air
temperature at thermistor (°C)
b3 55 --
(Thermistor is open-
circuited or PCB is
defective)
or
4 Indoor unit heat exchanger liquid
pipe temperature (°C)
b4 20
Abnormal
129
(Temperature for top of
compressor)
5 Temperature at remote sensor (°C)
b5 25 ff
(Thermistor is short-
circuited or PCB is
defective)
or
6 RASC unit ambient temperature
(°C)
b6 10 255
or
7 Indoor unit heat exchanger gas
pipe temperature (°C)
b7 25 127
(Temperature for top of
compressor)
8 RASC unit evaporating
temperature during heating (°C)
b8 02
Refer to section
“Self-checking
procedure of PCB by means of the
remote control switch”
9 Control information
bg --
During the transient periods such as starting time and other, the
indicators “
--
” or “
00
” may be displayed for a limited time.
This is indicated only when a remote sensor is connected.
The indicator “
-- ” is normally displayed.
RPK series cannot connect a remote sensor.
Therefore, the indicator is “
-- ”.
This indicates the internal information for the remote control
switch. This does not have any specific meaning.
If the temperature is higher than 126 ºC, “ 126 ” is displayed on
the remote controller screen.
10
Discharge gas temperature at the
top of the compressor chamber
(°C)
bA 41
11 Thermo temperature of the
remote control switch
bb 23