ENGLISH
13
- 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
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 re-
frigerant oil
• Degradation of refrigerant
oil
• Poor insulation of the com-
pressor
• Do not cold and warm
• Clogging of EEV, Capillary
• Degradation of refrigerant
oil
• Poor insulation of the com-
pressor
• Do not cold and warm
• Clogging of EEV, Capillary
• Gas shortages
• Degradation of refrigerant
oil
• Poor insulation of the com-
pressor
• Do not cold and warm
Counter-
measure
• 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 fit-
ted 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 fit-
ted cap when pass through
the walls.
• Airtightness test should be.
• Brazing operations to com-
ply with standards.
• Flare to comply with stan-
dards.
• Flange connections to
comply with standards.
Summary of Contents for LK-C1208C02
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