COMPRESSOR OIL — Checking and Adjusting
HA-27flowchartLubrication oil
SUNISO 5GS or equivalent
Maintenance of Oil Quantity in Compressor
The oil used to lubricate the compressor circulates through the system with the refrigerant. Whenever any component of the system is replaced or a large amount of gas leakage occurs, add oil to the compressor to maintain the specified amount. If oil quantity is not maintained properly, the following malfunctions may result:
Unknown block type: list
Checking and Adjusting
Adjust the oil quantity according to the flowchart shown below.
Compressor oil checking and adjusting
Rendering diagram…
Legend:TerminalDecisionAction
Amount of oil to be added
Evaporator
Oil to be added to system — Amount of oil mℓ (US fl oz, Imp fl oz)45 - 75 (1.5 - 2.5, 1.6 - 2.6)
Ratio (%)30
Remarks—
Condenser
Oil to be added to system — Amount of oil mℓ (US fl oz, Imp fl oz)30 - 50 (1.0 - 1.7, 1.1 - 1.8)
Ratio (%)20
Remarks—
Liquid tank
Oil to be added to system — Amount of oil mℓ (US fl oz, Imp fl oz)15 - 25 (0.5 - 0.8, 0.5 - 0.9)
Ratio (%)10
RemarksAdd if compressor is not replaced.*1
In case of refrigerant leak
Oil to be added to system — Amount of oil mℓ (US fl oz, Imp fl oz)30 - 50 (1. - 1.7, 1.1 - 1.8)
Ratio (%)—
RemarksLarge leak
In case of refrigerant leak
Oil to be added to system — Amount of oil mℓ (US fl oz, Imp fl oz)—
Ratio (%)—
RemarksSmall leak*2
NOTE
*1: If compressor is replaced, addition of oil is included in the flow chart. *2: If refrigerant leak is small, no addition of oil is needed. "Ratio" in this table indicated the ratio of added oil to the overall amount of oil needed in the system.