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Piping
41 Liebert
®
SRC™ User Manual
5.2.4 No Pipe Size Substitutions
Use only the pipe size recommended by this manual. Using a different size is prohibited and may result in
a system malfunction or failure to work at all.
Table 5-5 Piping-tube thickness
OD (in.) 1/4 3/81/25/83/4 7/81-1/81-3/81-5/8
Material Rigid type “K” or “L” and a soft ACR acceptable Rigid type “K” or “L” only
Min. Bend
Radius (in.)
.563 .9375 1.52.25 3.03.03.5 4.0
4.5
Min. Wall
Thickness
(in.)
.03 .03 .035 .040 .042 .045 .050 .050 .050
Table 5-6 ACR copper-tubing dimensions and physical characteristics
1-4
Nominal
Pipe Outside
Diameter
(in.)
Actual
Outside
Diameter
(in.)
Drawn Temper Annealed Temper
Nominal
Wall
Thickness
(in.) Weight (lb/ft)
Cubic ft per
Linear ft
Nominal
Wall
Thickness
(in.) Weight (lb/ft)
Cubic
ft per
Linear ft
1/4 0.250 ———0.030 0.081 .00020
3/80.375 0.030 0.126 .00054 0.032 0.134.00053
1/20.500 0.035 0.198 .00101 0.032 0.182 .00103
5/80.625 0.0400.285 .00162 0.035 0.251 .00168
3/4 0.750 0.0420.362 .002420.0420.362 .
00242
7/80.875 0.0450.455 .00336 0.0450.455 .00336
1-1/81.125 0.050 0.655 .00573 0.050 0.655 .00573
1. All dimensions provided are in accordance with ASTM B280 – Standard.
2. Design pressure = 551 psig.
3. ACR tubing is available as hard-drawn or annealed (soft) and are suitable for use with R410A refrigerant.
4. The Copper Tube Handbook, 2010, Copper Deve
lopment Association Inc., 260 Madison Avenue, New York, NY 10016.
NOTE
• Commercially-available piping often contains dust and other materials.
Always blow it clean with a dry, inert gas.
• Prevent dust, water or other contaminants from entering the piping during
installation. Contaminants can cause mechanical failure.
MFL67502030 17. 7. 13. 오오 3:05 Page 51
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