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7. Oil Control
7. Oil Control
(5)
System Oil Recovery Control
The system oil recovery control is performed by operating all the systems.
If the stopped outdoor unit exists, the unit starts operating and the system oil recovery control is performed.
5-1.
Start of system oil recovery control
When one of the oil level of compressors is "0", the system oil recovery control will start.
When the accumulated time reaches 60 minutes under the condition of oil level "1" or lower, the system oil
1
recovery control will start.
This timer will be cleared when the oil level "2" continues for 5 minutes.
* If any compressor oil level "2" remains in the same outdoor unit even though one compressor oil level "0" exists,
this oil recovery control is not performed.
System oil recovery control is performed.
Oil level "2" does NOT exist.
Outdoor unit
Oil level
1
*
When the system oil recovery control is once performed, it will not be resumed for 30 minutes.
Outdoor unit
Oil level
2
0
1
Control Functions - Outdoor unit
System oil recovery is not performed.
Oil level "2" exists.
Outdoor unit
Oil level
1
2
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2WAY VRF SYSTEM
2WAY SYSTEM
Control Functions
Outdoor unit
Oil level
0
2
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