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Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL INSTALLATION GUIDELINES
Pipe Sleeves at Penetrations
LG requires that all pipe penetrations through walls, floors, and pipes buried underground be properly insulated and routed through an
appropriate wall sleeve of sufficient size to prevent compression of refrigerant pipe insulation and free movement of the pipe within the sleeve
(Figure 38). Underground refrigerant pipe shall be routed inside a protective sleeve to prevent insulation deterioration. Refer to Figure 39.
Figure 38: Pipe Sleeve Options.
Diameter of penetrations shall be determined by pipe diameter plus the thickness of the insulation.
Piping Support, Elbow Usage
Figure 37: Typical Pipe Support Location—
Change in Pipe Direction
Pipe Supports, continued.
A properly installed pipe system will have sufficient supports to avoid pipes from sagging
during the life of the system. As necessary, place supports closer for segments where
potential sagging could occur. Maximum spacing of pipe supports shall meet local codes.
If local codes do not specify pipe support spacing, pipe shall be supported:
• Maximum of five feet (5ƍ) on center for straight segments of pipe up to 3/4" outside
diameter size.
• Maximum of six feet (6ƍ) on center for pipe up to one inch (1Ǝ) outside diameter size.
• Maximum of eight feet (8ƍ) on center for pipe up to two inches (2Ǝ) outside diameter size.
Wherever the pipe changes direction, place pipe clamps within twelve (12) inches on
one side and within twelve to nineteen (12 to 19) inches of the bend on the other side as
shown in Figure 37.
A
B
Pipe
Clamps
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