LG LH247HV Installation Manual download pdf (Page 12)

12 Air Conditioner

Connecting 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 refriger-

ant oil

- Degradation of refrigerant oil

- Poor insulation of the compres-

sor

- Do not cold and warm

- Clogging of EEV, Capillary

- Degradation of refrigerant oil

- Poor insulation of the compres-

sor

- Do not cold and warm

- Clogging of EEV, Capillary

- Gas shortages

- Degradation of refrigerant oil

- Poor insulation of the compres-

sor

- Do not cold and warm

Countermea-

sure

- No moisture in the pipe

- Until the connection is complet-

ed, 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 complet-

ed, 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.

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LG LH247HV Installation Manual Page 12

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