61.5KW
φ
28.58
φ
15.88
φ
31.8
φ
15.88
68.0KW
φ
28.58
φ
15.88
φ
31.8
φ
15.88
73.0KW
φ
31.8
φ
19.05
φ
38.1
φ
19.05
80.0KW
φ
31.8
φ
19.05
φ
38.1
φ
19.05
85.0 KW
φ
31.8
φ
19.05
φ
38.1
φ
19.05
90.0 KW
φ
31.8
φ
19.05
φ
38.1
φ
19.05
96.0 KW
φ
31.8
φ
19.05
φ
38.1
φ
19.05
101.0KW
φ
38.1
φ
19.05
φ
38.1
φ
22.22
106.5KW
φ
38.1
φ
19.05
φ
38.1
φ
22.2
113.0KW
φ
38.1
φ
19.05
φ
38.1
φ
22.2
118.0KW
φ
38.1
φ
19.05
φ
38.1
φ
22.2
123.5KW
φ
38.1
φ
19.05
φ
38.1
φ
22.2
130.0 KW
φ
38.1
φ
19.05
φ
38.1
φ
22.2
135.0KW
φ
38.1
φ
19.05
φ
38.1
φ
22.2
Note: When the distance from outdoor to the longest indoor is over 90m, the main pipe
diameter should be enlarged.
d. Pipe “d” diameter (between gather pipes)
Total outdoor capacity
before the gather pipe
Liquid pipe (a, c)
Gas pipe (b, d)
~68.0KW
φ
15.88
φ
28.58
69.0
~
96.0KW
φ
19.05
Φ
31.8
97.0KW~
φ
19.05
Φ
38.1
e. Pipe “e” diameter (between outdoor and the gather pipe)
outdoor capacity
Gas pipe
Liquid pipe
Oil equalization pipe
8HP
φ
19.05
10HP
φ
22.2
φ
9.52
12, 14 HP
φ
25.4
φ
12.7
16HP
φ
28.58
φ
12.7
φ
9.52
Copper pipe selection:
hardness softness
Half-hardness
Outer
diameter
φ
6.35
φ
9.52
φ
12.7
φ
15.88
φ
19.05
φ
22.2
φ
25.4
φ
28.58
φ
31.8
φ
34.9
φ
38.1
φ
41.3
Min.
thickness
0.8 0.8 1.0 1.0 1.0 1.1 1.2 1.4 1.4 1.4 1.4 1.43
Note: If the copper pipe with outer diameter
φ
19.05 is coil pipe, the thickness should be
over 1.1.
24