Fujitsu AOYG45LAT8 User Manual page 37

1-20. OIL RECOVERY OPERATION
Outdoor unit operates by cooling refrigerant cycle for recover the refrigerant oil to the compressor
1. Cooling oil recovery operation
< Start condition >
It operates forcibly from the compressor integrating time in Cooling and Dry mode.
Condition of the oil recovery operates after 1 hour
(1). First time after power ON
(2). When the operation mode changes from Heating to Cooling. (only first time)
Condition of the oil recovery operates after 3 hour
Without condition
< Operation >
Compressor : Over 50rps
Outdoor fan : Normal operation
4 way valve : OFF
< Release condition >
*2~7 minutes has passed from the start of oil recovery operation.
2. Heating oil recovery operation
< Start condition >
It operates forcibly when the compressor integrating operation time becomes 12 hours.
< Operation >
Refrigerant cycle is changed to the cooling cycle temporarily.
Compressor : Fixed 50rps
Outdoor fan : Step2 (290rpm)
4 way valve : OFF
< Release condition >
*1~5 minutes has passed from the start of oil recovery operation.
During the oil recovery operation,
and appears on the simple remote controller.
The operation indicators (LED) of the indoor units flash slowly.
*Operation time changes from the progress status of oil recovery.
appears on the display of wired and central remote controller,
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