Airwell AWAU-YDV1010-H13, Руководство по обслуживанию

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120
Master unit
digital tube
display
failure code
Failure code
definition
Failure description Remarks
35-0
4-way valve
reversing
failure
After the 4-way valve is electrified for 3 minunts, if the below
conditions can be met for continuous 10 seconds, that is
conversing successfully:
・
＆
・ The outdoor compressor running normally
・
＆
・
＆
・
Tsuc
－
Tdef1
≧
10
℃
・
Tsuc
－
Tdef2
≧
10
℃
・ Pd
－
Ps
≧
βMpa
※
Otherwise, stop protection.
（
Tao
＞
-10
℃，
β=0.60
；
Tao
≦
-10
℃，
β=0.40
）
*4-way valve OFF starts up again after 3 minutes
*If Thermo. OFF for 2 continuous times, Error stop.
Once
confirmed,
un-resumable
35-1
4-way valve
reversing
failure
If there is 4-way valve of slave unit not electrified after
master unit heating detection starts up for 20 min, alarm
35-1 failure.
36-0
Oil temp. too
low protection
（
Toil1
）
In normal operation (exclude start up, defrosting, oil
return, remain, stop), if Toil
＜
CT+10
℃
for continuous 5
minutes, the unit stops for 170 seconds and then resumes
automatically. If it occurs 3 times in an hour, lock the alarm.
*The same as Td too low protection
Once
confirmed,
un-resumable
36-1
Oil temp. too
low protection
（
Toil2
）
37-1
Lack of phase
of 3N power
supply
S phase lack
(L1 connect R, supply power for main PCB, L2 connect the
S of the main PCB, L3 supply power for module, no fixed
frequency compress, so don’t detect phase sequence, only
detect if it lack of phase
Once
confirmed,
un-resumable
38
High pressure
sensor Pd too
low protection Pd too low fault shield
39-0
Low pressure
sensor Ps too
low protection
After compressor is running (except for residual operation),
if in cooling, Ps<0.10MPa; in heating, Ps< 0.05MPa, in oil
return, Ps<0.03MPa for continuous 5 minutes, stop and
alarm. 170 seconds later, resume automatically. If it occurs 3
times in an hour, confirm the failure.
Once
confirmed,
un-resumable
39-1
Compressor
ratio
ε too high
protection
After compressor is running, compression ratio ε
＞
8.0
for continuous 5 minute, then stop and alarm. If in cooling,
compression ratio ε
＞
9.0 for continuous 1 minute or in
heating, compression ratio ε
＞
8.5 for continuous 1 minute
or in heating, stop and alarm. 170 seconds later, resume
automatically. If it occurs 4 times in an hour, confirm the
failure.
39-2
1# Compressor
ratio
ε too low
protection
In normal operation (exclude start up, defrosting, oil return,
remain, stop), if compression ratio ε<1.8 for continuous 5
minutes, then stop and alarm. Or ε<1.5 for continuous 1
minute, then stop and alarm. 170 seconds later, resume
automatically. If it occurs 4 times in an hour, confirm the
failure.
39-3
2# Compressor
ratio ε too low
protection