Hitachi PC-ARF Technical Catalogue page 169

4 Individual remote controls
PC-ART

Content of check mode 2
When more than three indoor units are connected to one remote control, only the most recent data from the three first
indoor units connected in sequence will be shown.
Pressing "" on the TEMP button takes you to the next screen, while pressing "" on the same button takes you to the
previous screen.
Step
No.
1 Indoor unit air inlet temperature in the thermistor (°C).
2 Indoor unit discharge air temperature in thermistor (°C).
3 Indoor unit heat exchanger liquid piping temperature (freeze protection) (°C).
4 Outdoor temperature (°C).
5 Indoor unit heat exchanger gas piping temperature (°C).
6 Evaporating temperature in heating mode (°C).
Control information
7
- Indicates internal remote control information. It has no specific meaning.
Temperature of the discharge gas in the top of compressor chamber (°C).
8
- When two components are running simultaneously, the average temperature is given.
N O T E
Possible abnormal conditions
TEMPERATURE INDICATION
--
129
FF 255
or
127
During transitory periods, such as on start-up, the "--" or "00" indicator may appear for a limited time.
153
TCGB0106 rev.0 - 12/2014
Temperature indication
Open circuit on any thermistor except
129
Open circuit in compressor discharge
thermistor
Short-circuit in any thermistor except
127
Short-circuit in compressor discharge
thermistor
Indication of temperature, etc.
Category code indication
FAULT
Check that the PCB is not read-
ing the thermistor incorrectly.
Consult the "PCB self-checking
procedure using the remote con-
trol" section
91 23
4
92 50
93 25
12
94
95 25
96 03
--
97
98 45