LG LH247HV, Инструкция по эксплуатации

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54 | duct (HIgH StatIc)
Ceiling-Concealed Duct (High Static) System Engineering Manual
Pipe Supports
Figure 35: Installing an Insert Into a
Concrete Beam.
reFrigerant PiPing deSign
refrigerant Piping System Layout
inserts and Pipe Supports
Inserts
An insert can be installed into a floor or beam before the concrete sets so that fittings such as ducts,
pipes, or suspension bolts can be added at a later time. Decide where the inserts should be placed
before support installation.
Concrete Beam
Insert
Suspension Bolt
Anti-vibration Material
Nail
Figure 36: Pipe Hanger Details.
A
B
A + B ~ 12" – 19"
Figure 37: Typical Pipe Support Location—Change
in Pipe Direction.
Max. 12"
~ 12" – 19"
Pipe supports should never touch the pipe wall; supports shall be
installed outside (around) the primary pipe insulation jacket (see
Figure 36. 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 sus-
pended 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 in-
sulation). Place a second 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 sup-
ported a maximum of 5 feet 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 in Figure 37.
A properly installed pipe system should be adequately supported to avoid pipe sagging. Sagging pipes
become oil traps that lead to equipment malfunction.
Figure 38: Pipe Support at Indoor Unit.