Airwell VVFA-125R-01M22 Manual De Instrucciones página 28

Failure code
Inverter outdoor unit failure code
Digital tube Indication
indication on wired
on master controller
unit (hex)
20 20-0
20 20-1
21 21
22 22
23 23
26 26-0
26-1 26-1
26-2 26-2
28 28
29 1D
30 30
33 33
34 34
35 35
39-0 39-0
Failure code
Failure description
definition
Defrosting temp.
AD value is below 11(open circuit) or over 1012(short circuit)
sensor Te failure
for 60seconds, in cooling mode, if the sensor is abnormal,
the unit does not deal with it, besides, in defrosting and
Defrosting temp.
within 3 minutes after defrosting, no alarm
sensor Tc failure
AD value is below 11(open circuit) or over 1012(short
Ambient temp.
circuit) for 60seconds, in defrosting and within 3 minutes
sensor Ta failure
after defrosting, no alarm
AD value is below 11(open circuit) or over 1012(short
Suction temp.
circuit) for 60seconds, in defrosting and within 3 minutes
sensor Ts failure
after defrosting, no alarm
After compressor is running for 5 minutes, AD value is below
Discharging temp. 11(open circuit) or over 1012(short circuit) for 60seconds,
sensor Td failure in course of startup, defrosting and within 3 minutes after
defrosting, no alarm
For continuous 200 cycles, can not find connected indoors
Indoor For continuous 300seconds, the searched indoor quantity is
communication less than the set quantity.
failure
For continuous 300seconds, the searched indoor quantity is
more than the set quantity.
AD value is below 11(open circuit) or
High pressure over 1012(short circuit) for 30seconds,
sensor Pd failure in defrosting and within 3 minutes after
defrosting, no alarm
AD value is below 11(open circuit) or
Low pressure over 1012(short circuit) for 30seconds,
sensor Ps failure in defrosting and within 3 minutes after
defrosting, no alarm
High pressure If disconnect for 50ms continuously, alarm. If alarm 3 times
switch HPS failure in an hour, confirm the failure
EEPROM failure EEPROM failure
Td≥239°F(115°C) at interval of 25msec for twice
Discharging temp.
continuously, and over the set value, then stop and alarm;
too high protection
3 minutes later, resume automatically. If it occurs 3 times in
(Td)
an hour, confirm the failure.
After 4-way valve is electrified for 3 minutes, if the below
conditions can be met for continous 10 seconds, that is
4-way valve conversing successfully:
reversing failure 1. this outdoor compressor is running normally
2. Pd-Ps≥87PSI(0.6MPa), Otherwise, the system alarms
reversing failure.
After compressor is running (except for residual operation),
Low pressure if in cooling, Ps<0.05Mpa; in heating, Ps<0.03Mpa; in oil
sensor Ps too low return, Ps<0.03Mpa for continuous 5 minutes, alarm and
protection stop. 2 minutes and 50 seconds later, resume automatically,
if it occurs 3 times in an hour, confirm the failure.
20
Remarks
Resumable
Resumable
Resumable
Resumable
Resumable
Resumable
Resumable
Once
confirmation,
un-resumable
Once
confirmation,
un-resumable
Once
confirmation,
un-resumable
Once
confirmation,
un-resumable
Once
confirmation,
un-resumable