19
Displays the malfunction code or protection code.
8.9.9 FAN SPEED indication lamp
Displays the selected fan speed: AUTO(nothing) and three fan speed levels: LOW, MED
and HIGH.
8.10 Outdoor unit LED display function:
1. When stand-by it display number of indoor unit online;
2. When operation it display frequency of outdoor unit;
3. When defrost it display “df”;
4. When a protection or error occurred, it displays error code or protection code.
8.11 Check function:
There is a check button on outdoor pcb. When push this button, the outdoor LED can
display in sequence:
Capacity demand
→
Running mode
→
revised capacity
→
fan state
→
No.1 evaporator pipe
temp.
→
No.2 evaporator pipe temp.
→
No.3 evaporator pipe temp.
→
No.4 evaporator pipe
temp.
→
outdoor pipe temp.
→
Outdoor temp.
→
discharge gas temp.
→
current of outdoor
unit
→
No. 1 opening degree of electronic expansion valve
→
No. 2 opening degree of
EXV
→
No. 3 opening degree of EXV
→
No. 4 opening degree of EXV
→
indoor unit
number
→
last protection/error code
→
capacity demand(cycle)
Explanation for the some display content:
1. Running mode:
Display
Corresponding mode
0 Off
1 Cooling
mode
2 Heating
mode
2. Fan state:
Display
Corresponding mode
0 Off
1 Low
fan
2 High
fan
3. Opening degree of EXV:
Opening degree equals the display data times 8;
4. Number of indoor unit
The indoor unit that can communicate with outdoor unit normally.
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