Hiyasu HOS-18U2IM, Service Manual

Page: 13 / 19

-11-
Service manual
x
In compressor pre-heating, The LED displays “1 1”
x
In protection or malfunction, the LEC displays error code or protection code.
8.4 Outdoor unit point check function
There is a check switch in outdoor PCB.
Push the switch SW1 to check the states of unit when the unit is running. The digital display
tube will display the follow procedure when push SW1 each time:
Frequency of compressor
→ Running mode → Capacity demand → Number of indoor unit
→ Outdoor temp. → outdoor pipe temp. → current of outdoor unit → No. 1 opening degree
of electronic expansion valve → No. 2 opening degree of electronic expansion valve →
No. 3 opening degree of electronic expansion valve → Frequency of compressor
8.4.1 Frequency of compressor:
Display Frequency of compressor
(Hz)
30 30
-- Stand
by
60 60
8.4.2 Running mode:
Display Corresponding mode
0 Off
1 Cooling
mode
2 Heating mode
8.4.3 Capacity demand:
Cooling mode
Capacity 2000-
2500
2000-
2500 3000-
3800 4500-
5000 5000-
5500 5500-
6100 6100-
7000 7000-
7500 7500-
8000 7500-
8000
Correspon
ding Code 1 2 3 4 5 6 7 8 9 >=10
Heating mode
Capacity 2000-
2500
2000-
2500 3000-
3800 4500-
5000 5500-
6100 6100-
7000 6100-
7000 7000-
7500 7500-
8000 8000-
8900
Correspond
ing Code 1 2 3 4 5 6 7 8 9-10 >=11
Note:
The capacity is just for reference.
8.4.4Number of indoor unit
Display Number of indoor unit
1 1
2 2
3 3
www.enindel.com