LG LAU090HYV - Selecting Field-Supplied Copper Tubing

Due to our policy of continuous product innovation, some specifications may change without notification.
Due to our policy of continuous product innovation, some specifications may change without notification.
 | 41
Refrigerant Piping Design & Layout Best Practices
Pipe
Length
1
Fluid Temperature °F
35° 40° 45° 50° 55° 60° 65° 70° 75° 80° 85° 90° 95° 100° 105° 110° 115° 120° 125° 130°
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
1
Pipe length baseline temperature = 0°F. "Expansion of Carbon, Copper and Stainless Steel Pipe," The Engineers' Toolbox, www.engineeringtoolbox.com.
Table 12: Linear Thermal Expansion of Copper Tubing in Inches
Selecting Field-Supplied Copper Tubing
Anticipated Linear
Expansion (LE) (inches)
Nominal Tube Size (OD) inches
1/4 3/8
1/2
R
1
6 7
L
2
38 44
1
R
1
9 10
L
2
54 63
1-1/2
R
1
11 12
L
2
66 77
2
R
1
12 14
L
2
77 89
2-1/2
R
1
14 16
L
2
86 99
3
R
1
15 17
L
2
94 109
3-1/2
R
1
16 19
L
2
102 117
4
R
1
17 20
L
2
109 126
1
R = Centerline Length of Pipe.
2
L = Centerline Minimum Radius (inches).
Large Tubing U-bend (>3/4 in.)
Small Tubing U-bend (<3/4 in.)
Figure 17: Coiled Expansion Loops and Offsets.
Large Tubing U-bend (>3/4 in.)
R
L
Table 13: Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets
Loop
R
L
Small Tubing U-bend (<3/4 in.)
L
REFRIGERANT PIPING DESIGN