02-15
Protective Function
Detect Parts
Operating Condition
Operation
Overcurrent Break
Stop
(INV compressor)
Overcurrent
Protection Circuit
COOL HEAT
INV compressor stopped
Overcurrent Break
Stop
(Constant speed
compressor)
<Pattern starting condition>
Constant speed compressor current value 19.5A continues for 2 secs
<Pattern reset condition>
10 minutes have elapsed since compressor was stopped.
<Pattern starting condition>
Pattern generated 2 times within 60 minutes.
<Pattern reset condition>
Error reset (push button SW) executed after power turned on again.
Heatsink Temp
Thermistor
<Pattern starting condition>
Heat sink temperature 88°C
<Pattern reset condition>
3 minutes have elapsed and heat sink temperature 75°C
INV compressor stopped
Heatsink Temp
Protection Stop
<Pattern starting condition>
Pattern generated 3 times within 60 minutes.
<Pattern reset condition>
10 minutes have elapsed and heat sink temperature 75°C
INV compressor stopped
Error display
<Pattern starting condition>
Current value 18.2A
<Pattern reset condition>
Current value 18.2A
Frequency Maximum
Setting Protection
(INV compressor)
<Pattern starting condition>
Current value 19.2A
<Pattern reset condition>
Current value 19.2A
Constant speed compressor stopped
(permanent stop)
Error display
Current Detector
Circuit
Inverter compressor is stopped when the over currernt protectioncircuit in the
inverter PCBoad detects an abnormal current duringthe operation.
If it repeated 5 times, the inverter compressor becomes permanentstop.
Inverter compressor is stopped when the over current protection circuit in the
inverter PC Board detects an abnormal current at the time of start up.
Inverter compressor becomes permanent stop if it repeated over the number
of set time.
Constant speed compressor stopped
<Reset condition>
Error reset (push button SW) executed after power turned on again.
Carrent Detector
Circuit
INV compressor speed lowered
INV compressor speed rise prohibited
• Pattern and start current value changed by outside
temperature
DISPLAY
E941
E931
(permanent stop)
(permanent stop)
E922
EAC4
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