AUX-DC inverter ARV outdoor unit individual series technical manual
103
Example of piping design
30 HP is taken as the example to explain pipe selection.
No. of indoor unit
Indoor Unit Capacity (kW)
1#
2#
3#
4#
5#
6#
For outdoor unit:
Pipe diameter of “1” depends onoutdoor unit capacity, which is Φ34.9/Φ19.05. Y-type branch pipe should
use thetype ofAFG-34B.
For indoor side:
1.
Branch pipe include 6~11 and the dimension of pipe “6” is Φ15.88/Φ9.52, the dimension of pipe
“7~11” is Φ19.05/Φ9.52
2.
Downstream indoor units of main pipe “5” include 5#
、
6#. Its HP sum is “5×2=10HP”. Dimension of
pipe “9” is Φ22.2/Φ9.52. Branch pipe “e” should use AFG-12B.
3.
Downstream indoor units of main pipe “4” include 4#~6#. Its HP sum is “5×3=15HP”. Dimension of
pipe “8” is Φ28.6/Φ12.7. Branch pipe “d” should use AFG-24B.
4.
Downstream indoor units of main pipe “3” include 3#~6#. Its HP sum is “5×4=20HP”. Dimension of
pipe “7” is Φ28.6/Φ15.88. Branch pipe “c” should use AFG-24B.
5.
Downstream indoor units of main pipe “2” include 3#~6#. Its HP sum is “5×5=25HP”. Dimension of
pipe “6” is Φ28.6/Φ15.88. Branch pipe “b” should use AFG-34B.
6.
Downstream indoor units of main pipe “3” include 3#~6#. Its HP sum is “5×6=30HP”. Dimension of
pipe “5” is Φ34.9/Φ19.05. Branch pipe “a” should use AFG-34B.
Note:
Branch pipes must be placed horizontally, otherwise there will be distribution of refrigerant will be caused.
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