Troubleshooting Guide

Troubleshooting 16
22
Indoor unit A room
temperature (T1A)
If the temperature is lower than 0°C, the digital display shows
“0.” If the temperature is higher than 70°C, the digital display
shows “70.” If the indoor unit is not connected, the digital
display shows: “--”
23
Indoor unit B room
temperature (T1B)
24
Indoor unit C room
temperature (T1C)
25
Indoor unit D room
temperature (T1D)
26
Indoor unit E room
temperature (T1E)
27
Indoor unit A evaporator
temperature (T2A)
If the temperature is lower than -9°C, the digital display shows
“-9.” If the temperature is higher than 70°C, the digital display
shows “70.” If the indoor unit is not connected, the digital
display shows: “--”
28
Indoor unit B evaporator
temperature (T2B)
29
Indoor unit C evaporator
temperature (T2C)
30
Indoor unit D evaporator
temperature (T2D)
31
Indoor unit E evaporator
temperature (T2E)
32
Condenser pipe temperature
(T3)
33
Outdoor ambient temperature
(T4)
34
Compressor discharge
temperature (TP)
The display value is between 30–129°C. If the temperature
is lower than 30°C, the digital display shows “30.” If the
temperature is higher than 99°C, the digital display shows
single and double digits. For example, if the digital display
shows “0.5”, the compressor discharge temperature is 105°C.
35 AD value of current The display value is a hex number.
For example, the digital display tube shows “Cd”, it means AD
value is 205.
36 AD value of AC voltage
37 AD value of DC voltage
38
EXV open angle for A indoor
unit
Actual data/4.
If the value is higher than 99, the digital display shows single
and double digits.
For example, if the digital display shows “2.0”, the EXV open
angle is 120×4=480p.
39
EXV open angle for B indoor
unit
40
EXV open angle for C indoor
unit
41
EXV open angle for D indoor
unit
42
EXV open angle for E indoor
unit
43 MVI valve open angle
44 EVI valve open angle