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INSTALLATION & LAYOUT BEST PRACTICES
Pipe Supports
A properly installed pipe system should be adequately supported to avoid pipe sagging.
Sagging pipes become oil traps that lead to equipment malfunction.
Pipe supports should never touch the pipe wall; supports shall be installed outside
(around) the primary pipe insulation jacket. Insulate the pipe first because pipe supports
shall be installed outside (around) the primary pipe insulation jacket. Clevis hangers
should be used with shields between the hangers and insulation. Field provided pipe
supports should be designed to meet local codes. If allowed by code, use fiber straps or
split-ring hangers suspended from the ceiling on all-thread rods (fiber straps or split ring
hangers can be used as long as they do not compress the pipe insulation). Place a sec-
ond layer of insulation over the pipe insulation jacket to prevent chafing and compression
of the primary insulation within the confines of the support pipe clamp.
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 (5') on center for straight segments of pipe up to 3/4" outside
diameter size.
• Wherever the pipe changes direction, place a hanger 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.
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.
Refrigerant Piping System Layout
Figure 15: Pipe Hanger Details.
Figure 16: Typical Pipe Support Location—
Change in Pipe Direction.
~ 12" – 19"
Figure 17: Pipe Support at Indoor Unit.
REFRIGERANT DESIGN | 49
Max. 12"
B
A
A + B ~ 12" – 19"
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