LG GHP SUPER - Pipe Connections between Indoor;Outdoor Units

PIPE CONNECTIONS BETWEEN INDOOR/OUTDOOR UNITS
ENGLISH
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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 fail-
ure
- Significant hydrolysis of
refrigerant oil
- Degradation of refrigerant
oil
- Poor insula’tion 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 com-
pleted, 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 com-
pleted, 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 com-
ply with standards.
PIPE CONNECTIONS BETWEEN
INDOOR/OUTDOOR UNITS
Plumbing materials and storage methods
- 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.