Design of 3WAY VRF SYSTEM
2
- 9
1
2
3
4
5
6
7
8
1. Model Selecting and Capacity Calculator
Gas tubing size (in.(mm))
1/2"
(12.7)
5/8"
(15.88)
3/4"
(19.05)
7/8"
(22.22)
1"
(25.4)
1-1/8"
(28.58)
1-3/8"
(38.1)
90
°
elbow
1
1.1
1.4
1.6
1.7
1.9
2.5
45
°
elbow
0.8
0.9
1
1.2
1.3
1.4
1.8
U-shape tube bent
(R2–23/64–3–15/16 in.)
3
3.4
4.1
4.7
5.1
5.6
7.4
T r ap bend
7.5
9.2
10.5
12.5
14.1
15.4
19.2
Y-branch distr ibution joint
Equivalent length conversion not needed.
Ball v alve f or ser vice
Equivalent length conversion not needed.
1-6. Straight Equivalent Length of Joints
Design the tubing system by referring to the following table for the straight equivalent length of joints.
Table 2-8 Straight Equivalent Length of Joints
Unit: ft.
TD831158-00̲3WAY̲VRF̲SYS.indb 9
TD831158-00̲3WAY̲VRF̲SYS.indb 9
2012/01/23 17:30:12
2012/01/23 17:30:12
Summary of Contents for U-72MF1U9
Page 118: ...Section 8 TENTATIVE ...
