AHU-KIT
18
3.5.2.2 Selection of Piping Dimension
Piping dimension can be selected according to the total rated capacity of upstream or
downstream modules. Detailed requirements are as below:
(1) Piping (A, B, C) from ODU to branch pipe shall be selected according to the rated capacity
of ODU;
(2) Piping D between branch pipes of ODU modules shall be selected according to the total
rated capacity of upstream modules;
(3) Piping E and G of branch pipe at IDU side shall be selected according to the total rated
capacity of downstream IDUs;
(4) Piping F from IDU branch pipe to IDU shall be selected according to the rated capacity of
IDU;
(5) Piping (I1, I2, J, H) between branch pipe and AHU-KIT shall be selected according to the
capacity of AHU-KIT;
Relationship between capacity and piping dimension is as below:
NOTICE!
①
As the capacity of AHU-KIT is adjustable, please select piping according to actual
capacity in the project.
②
If the ex-factory pipe diameter of AHU adapter is inconsistent with the actual required
pipe diameter for the project, please conduct conversion on site.
Rated capacity (kBtu/h)
Gas pipe
mm( in.)
Liquid pipe
mm( in.)
Q≤72
Φ19.05(3/4)
Φ9.52(3/8)
72
＜
Q≤96
Φ22.2(7/8)
Φ9.52(3/8)
96
＜
Q≤120
Φ28.6(1-1/8)
Φ12.7(1/2)
120
＜
Q≤144
Φ28.6(1-1/8)
Φ12.7(1/2)
144
＜
Q≤168
Φ28.6(1-1/8)
Φ15.9(5/8)
168
＜
Q≤216
Φ28.6(1-1/8)
Φ15.9(5/8)
216
＜
Q≤240
Φ34.9(1-3/8)
Φ15.9(5/8)
240
＜
Q≤312
Φ34.9(1-3/8)
Φ19.05(3/4)
312
＜
Q≤336
Φ34.9(1-3/8)
Φ19.05(3/4)
336
＜
Q≤360
Φ41.3(1-5/8)
Φ19.05(3/4)
