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2-9-7 Over current protection
Protective function
Detect device
Overcurrecnt
Inverter PCB
protection stop
Embeded
2-9-8 Compressor Frequency Maximum setting protection
Protective function
Detect device
Compressor
Frequency
Filter PCB
Current
Maximum
setting protection
transformer
2-9-9 Compressor compress ratio protection
Protective function Detect device
Compressor
High pressure sensor and
compression
Low pressure sensor
ratio protecion
Cool Heat Display
Start condition
E941
Over current protection
circuit detects (Abnormal
(permanent
current) in 5 times during
stop)
compressor operatng.
E931
Over current protection
circuit detects (Abnormal
(permanent
current) at the compressor
stop)
start-up.
Cool Heat Display
Start condition
Pattern 1
Current value more than :
28.7A ( 6ton, 8ton )
35.5A (10ton )
Pattern 2
Current value more than:
29.7A ( 6ton, 8ton)
36.5A (10ton)
Cool Heat Display Start condition
*1 Compress ratio:
Release condition
Current value less than
the start condition
Current value less than
the start condition
Compression ratio*
above 9 (8)
02-22
Release condition
Operation
Compressor stop and
Error indication
"Trip Detection"
Error reset (push
button SW)
executed after
power turned on
Compressor stop and
Error indication
"Inverter Compressor
Start up Error"
Operation
Compressor speed
rise up prohibited
Compressor speed
lowered
( ) : L-Chassis
Release condition
Operation
3 minutes elapsed,
and below 8 (7.5)
SV1 => ON
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Troubleshooting
