LG ZUAA1 Installation Manual page 20

CONNECTING PIPES
20
CAUTION
!
• A brazed, welded, or mechanical
connection shall be made before
opening the valves to permit refrigerant to flow
between the refrigerating system parts.
• When fared joints are reused indoors,
the fare part shall be re-fabricated. (for 32)
• When mechanical connectors are reused
indoors, sealing parts shall be renewed.
(for R32)
• Copper in contact with refrigerants shall
be oxygen-free or deoxidized, for
example Cu-DHP as specifed in EN
12735-1 and EN 12735-2.
CAUTION
!
• Refrigerant tubing shall be protected or
enclosed to avoid damage.
• Flexible refrigerant connectors (such as
connecting lines between the indoor
and outdoor unit) that may be displaced
during normal operations shall be
protected against mechanical damage.