LG LS091HSV3 Installation Manual page 32
Single zone high efficiency, standard, extended pipe, and mega wall mounted
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- Owner's manual (102 pages) ,
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GENERAL INSTALLATION GUIDELINES
Piping Materials and Handling
See table below for precalculated anticipated expansion for various pipe sizes and lengths of refrigerant tubing.
To find the anticipated expansion value:
1. From the table below, find the row corresponding with the actual feet of the straight pipe segment.
2. Estimate the minimum and maximum temperature of the pipe.
3. In the column showing the minimum pipe temperature, look up the anticipated expansion distance corresponding to the segment length.
Do the same for the maximum pipe temperature.
4. Calculate the difference in the two expansion distance values. The result will be the change in pipe length.
Table 20: Linear Thermal Expansion of Copper Tubing in Inches
Pipe
Length
1
35°
40°
45°
10
0.04 0.04 0.05 0.06 0.06 0.07 0.08 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.11 0.12 0.13 0.14 0.15 0.15
20
0.08 0.08 0.10 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.22 0.23 0.26 0.28 0.29 0.30
30
0.12 0.12 0.15 0.18 0.20 0.21 0.23 0.24 0.26 0.27 0.29 0.30 0.32 0.33 0.32 0.35 0.39 0.42 0.44 0.45
40
0.16 0.16 0.20 0.24 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 0.42 0.44 0.43 0.46 0.52 0.56 0.58 0.60
50
0.20 0.20 0.25 0.30 0.33 0.35 0.38 0.40 0.43 0.45 0.48 0.50 0.53 0.55 0.54 0.58 0.65 0.70 0.73 0.75
60
0.24 0.24 0.30 0.36 0.39 0.42 0.45 0.48 0.51 0.54 0.57 0.60 0.63 0.66 0.65 0.69 0.78 0.84 0.87 0.90
Pipe length baseline temperature = 0°F. "Expansion of Carbon, Copper and Stainless Steel Pipe," The Engineers' Toolbox, www.engineeringtoolbox.com.
1
Figure 35: Coiled Expansion Loops and Offsets
L
R
Large Tubing U-bend (>3/4 in.)
Table 21: Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets
Anticipated Linear
Expansion (LE) (inches)
R
1/2
R
1
R
1-1/2
R
2
R
2-1/2
R
3
R
3-1/2
R
4
32
50°
55°
60°
65°
70°
L
1/4
1
6
L
38
2
9
1
L
54
2
11
1
L
66
2
12
1
L
2
77
14
1
L
86
2
1
15
L
94
2
16
1
L
2
102
17
1
L
109
2
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.
Fluid Temperature °F
75°
80°
85°
90°
95° 100° 105° 110° 115° 120° 125° 130°
R
Loop
Nominal Tube Size (OD) inches
3/8
7
44
10
63
12
77
14
89
16
99
17
109
19
117
20
126
L
Small Tubing U-bend (<3/4 in.)
1/2
3/4
8
9
50
59
11
13
70
83
14
16
86
101
16
19
99
117
18
21
111
131
19
23
122
143
21
25
131
155
22
26
140
166
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