Compressor Frequency - Fujitsu AMUG24LMAS Service Manual

1. COMPRESSOR CONTROL
1. COMPRESSOR FREQUENCY AT STARTUP
AOU24RGLX
AOU30RGLX
Compressor frequency soon after starting
is controlled as shown below.
When it is first start after switching on a breaker, Pattern II is applied.
Pattern I
Condition
(Normal)
In Cooling or dry operation
In Heating operation within
3 hours after compressor stop
and compressor bottom
thermistor is over 89.6°F (32˚C)
Defrost operation
Start after defrosting
Pattern II
Condition
(Oil and refrigerant are mixed
in compressor)
In Heating operation
over 3 hours after
compressor stop
or compressor bottom
thermistor is under 89.6°F (32˚C)
Frequency
60 rps
47 rps
30 rps
60 sec
Frequency
60 rps
47 rps
30 rps
60 sec
04-01
120 sec 180 sec
180 sec
Time
Time
240 sec