Airwell YEVFD Série Manuel D'installation page 30

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Failure code
Digital tube
Indication
indication
on wired
on master
controller
unit
(hex)
62
62
63
63
64
64
71-0
71-0
71-1
71-1
75
75-0
75-4
75-4
78
78
81
81
82
82
83
83
108
108
109
109
110
110
111
111
112
112
113
113
Failure code
Failure description
definition
Valve plate module
error(sending by
Reserved
valve plate)
Valve plate dial
No valve plate module dial but the valve plate module is
setting error
detected.
CT current is too
CT current exceeds specified value, 3 minutes after
high
recovery
Upper DC motor
Running at speed below 20rpm for 30s, or at speed of
blocked
70% lower than the target for 2 minutes, 2 minutes and 50
seconds later after stop, resume automatically. It occurs 3
Lower DC motor
times in an hour, confirm the failure.
blocked
No pressure drop
In 1 minute after INV compressor starts up, Pd-
between high
Ps≤0.1MPa,then stop. 180 seconds later, resume
pressure and low
automatically. If it occurs 3 times in an hour, confirm the
pressure
failure.
Too small pressure
If Pd-Ps≤0.2MPa for 5 minutes, the outdoor unit protection
drop between high
stop.
pressure and low
• 3 minutes after stopping protection, restart. If it occurs 3
pressure
times in an hour, confirm the failure.
Compressor running in cooling mode, Ps<0.2MPa for 30
minutes; compressor running in heating mode, Tsi - ET>20;
Lack of refrigerant
LEV will fully open for 60 minutes, the unit will output lack of
refrigerant alarm,unit will not stop.
IPM modular temp.
IPM modular temp.≥185°F(85°C)
too high protection
Compressor
Compressor current exceeds specified value, 3 minutes
current protection
after recovery
Outdoor model set
Model and the number of fans do not match
error
Transient over
current in IPM
Transient over current in IPM module rectifier side software
module rectifier
side software
Current detection
Current detection circuit abnormality
circuit abnormality
IPM modular
IPM modular over current, in short circuit, over heat, voltage
protection (F0)
too low of control circuit.
Compressor out of
In the course of compressor startup or running, the unit can
control
not detect the rotor position, or not connecting compressor.
Radiator of
transducer temp.
Radiator temp. too high
too high
Transducer
Output current of transducer is too high
overload
22
Remarks
Resumable
Once
confirmation,
un-resumable
3 times in an
hour, confirm
failure; once
confirmation,
un-resumable
Once
confirmation,
un-resumable
Once
confirmed,
unresumable
Once
confirmed,
unresumable
--
3 times in an
hour, confirm
failure; once
confirmation,
un-resumable
Un-resumable
3 times in an
hour, confirm
failure; once
confirmation,
un-resumable

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