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Defrost Operation - Samsung AVMKH020EA0 Service Manual

System air conditioner dvm series
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8-2-80. Defrost operation

Outdoor unit display
Indoor unit display
Judgment method
Causes
I Check method
I
This is not the error, so normal heating operation is performed after defrost.
8-2-81. Low discharge pressure control
Outdoor unit display
Indoor unit display
Judgment method
Causes
I Check method
I
If the capacity of indoor unit is low at the below 0˚C of outdoor temperature in cooling, this is specification to control
compressor ON/OFF. It is not an error and possible to operate normally.
8-2-82. Oil leveling
Outdoor unit display
Indoor unit display
Judgment method
Causes
I Check method
I
This is a special operation mode to obtain oil level between the compressors on the system used many compressors,
and is not error. After oil leveling operation for 4~6 minutes, it returns to the normal operation automatically.
- The operation to defrost in the outdoor heat exchanger during the heating operation
- Defrost operation (Not error)
- The operation is continued with the high pressure of 9kg/cm
- When the capacity of indoor unit for cooling is below 4000W in the condition of
-
low outdoor temperature(below 0˚C)
- Operation to exchange the oil between the compressors (Oil leveling operation)
- Oil leveling operation
- 261 -
Troubleshooting
2
for 10 minutes.

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