Hitachi RASC-4HNPE Service Manual page 260

10 Troubleshooting
Troubleshooting in check mode

Contents of the check mode 2
When more than three indoor units are connected to one remote control switch, the latest data of only the first three
indoor units that are connected serially are displayed.
If you press the part "" of the TEMP switch, the next display appears. If you press the part "" of the TEMP switch, the
previous display appears.
Temperature indication
Indoor unit air inlet temperature at
1
thermistor (°C)
Indoor unit discharge air
2
temperature at thermistor (°C)
Indoor unit heat exchanger liquid
3 pipe temperature
(freeze protection) (°C)
RASC unit ambient temperature
4
(°C)
Indoor unit heat exchanger gas
5
pipe temperature (°C)
RASC unit evaporating
6
temperature during heating (°C)
7 Control information
Discharge gas temperature at the
8
top of compressor chamber (°C)
Compressor pressure/frequency indication
Discharge pressure (high)
9
(x 0.1 MPa)
Suction pressure (low)
10
(x 0.01 MPa)
11 Control information
12 Operation frequency (Hz)
Expansion opening indication
Indoor unit expansion valve
13
opening (%)
RASC unit expansion valve MV
14
opening (%)
Estimated electric current indication
15 Compressor running current (A)
Returns to temperature indication
250 SMGB0091 rev.2 - 11/2015
Indication of the category code
Indication of the temperature, etc
91 23
Corresponds to check mode 1 "
92 50
Corresponds to check mode 1 "
93 25
Corresponds to check mode 1 "
94 12
Corresponds to check mode 1 "
95 25
Corresponds to check mode 1 "
96 03
Corresponds to check mode 1 "
97 --
Corresponds to check mode 1 "
98 45
Corresponds to check mode 1 "
9g 18
Corresponds to check mode 1 "
9A 04
Corresponds to check mode 1 "
96 44
Corresponds to check mode 1 "
9C 44
Corresponds to check mode 1 "
9d 20
Corresponds to check mode 1 "
9E gg
Corresponds to check mode 1 "
9F 20
Corresponds to check mode 1 "
b2 "
b3 "
b4 "
b6 "
b7 "
b8 "
b9 "
bA "
H1 "
H2 "
H3 "
H4 "
L1 "
L2 "
P1 "