Airwell YCV280, Installation And Maintenance Instructions Manual

Page: 371 / 412

2B 43-0
2C 44
2B 43-1
2B 43-2
47 71-1
2D 45
2E 46
30 48
40 64-1
40 64-2
43 67
35 53-1
47 71-2
35 53-2
digital
tube
indication
on master
unit
indication
on wired
controller
(hex)
failure
code
definition
failure description remarks
discharging
temp. sensor
Tdi too low
protection
discharging
temp. sensor
Td1 too low
protection
discharging
temp. sensor
Td2 too low
protection
once
confirmation
, un-
resumable
once
confirmation
, un-
resumable
in normal operation, if
T
d<CT+10
¡
for continuous 5
minutes, the unit stops and alarms.2 minutes and 50
seconds later, resume automatically. If it occurs 3 times
in an hour, confirm the failure. After fixed frequency
compressor alarms, inverter compressor will continue to
run. If fixed frequency compressor has been locked for 3
times, the unit will stop and alarm.
low pressure
sensor PS
too high
protection
communication
among
outdoors failure
communication
with inverter
board failure
unloading valve
SV1 failure
current detector
CT1 failure
current detector
CT2 failure
CT1 over
current
CT2 over
current
in normal operation, if Ps>1.05MPa for continuous 5
minutes, unit stops and alarms, 2 minutes and 50
senconds later, resume automatically.If it occurs 3 times
in an hour, alarm and confirm the failure.
no communication within 3 minutes continuously
no communication within 30 seconds continuously
before startup, SV1 opens for 2 minutes, if Pd-
Ps>=0.2MPa, display failure code, when Pd-
Ps<0.2MPa, resume.
fixed frequency compressor is OFF, if
CT>=4.0(EE)3.0A for 2s(not detecting in 90s after
fixed frequency compressor is from ON to OFF); fixed
frequency compressor is ON, if CT<=2.0(EE) for
2s(not detecting in 90s after fixed frequency
compressor is from OFF to ON), it alarms failure of CT
in short ciruit.
current of fixed frequency compressor is over the
limitation twice at the interval of 25msecond, unit will
stop, but 3 minutes later, resume to be normal
automatically.If it occurs 3 times in an hour, alarm and
stop. But, in 4 seconds after startup, not detect.
without communication for 4 minutes
running at speed below 20rpm for 30s, or at speed of
70% lower than the target for 2 minutes, 2 minutes
and 50 seconds later after stop, resume automatically.
It occurs 3 times in an hour, confirm the failure.
communication
with motor driving
board failure
left DC motor
blocked
right DC motor
blocked
resumable
resumable
resumable
resumable
once
confirmation
, un-
resumable
once
confirmation
, un-
resumable
377