When any the following conditions is satisfied, the indoor fan stops and " Oil recovery operation " starts.
(1) One or more compressor are operating.
(2) The integrated operating time in the " 1 or more compressors operating state " has exceeded 4-6 hours.
(3) Defrosting is not performed.
However the first oil recovery operation after the power is turned on is performed when the integrated operating
time in the " 1 or more compressors operating " state has exceeded 1 hour.
Compressor 1
ON
OFF
Indoor Fan
5-11 OIL RECOVERY CONTROL
OFF
OFF
OFF
ON
ON
ON
Compressor 2
Compressor 3
A mins
1 min
Oil recovery start
Oil recovery end
*
When oil recovery error not generated A= 4-6 mins
When oil recovery error generated A= 7-9 mins
*
– 55 –
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