LG AUUW24GD2 - Plumbing Materials and Storage Methods

12
Connecting Copper Pipes
Pipe must be able to obtain the specified thickness and should be used with low impurities.
Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound.
Should not be mixed with contaminations such as dust, moisture.
Refrigerant piping on three principles
Plumbing materials and storage methods
Drying Cleanliness Airtight
Should be no moisture inside No dust inside. There is no refrigerant leakage
Items
Moisture
Dust
Leakage
Cause failure
- Significant hydrolysis of
refrigerant oil
- Degradation of refrigerant oil
- Poor insulation of the
compressor
- Do not cold and warm
- Clogging of EEV, Capillary
- Degradation of refrigerant oil
- Poor insulation of the
compressor
- Do not cold and warm
- Clogging of EEV, Capillary
- Gas shortages
- Degradation of refrigerant oil
- Poor insulation of the
compressor
- Do not cold and warm
Countermeasure
- No moisture in the pipe
- Until the connection is
completed, the plumbing pipe
entrance should be strictly
controlled.
- Stop plumbing at rainy day.
- Pipe entrance should be taken
side or bottom.
- When removal burr after cutting
pipe, pipe entrance should be
taken down.
- Pipe entrance should be fitted
cap when pass through the
walls.
- No dust in the pipe.
- Until the connection is
completed, the plumbing pipe
entrance should be strictly
controlled.
- Pipe entrance should be taken
side or bottom.
- When removal burr after cutting
pipe, pipe entrance should be
taken down.
- Pipe entrance should be fitted
cap when pass through the
walls.
- Airtightness test should be.
- Brazing operations to comply
with standards.
- Flare to comply with standards.
- Flange connections to comply
with standards.