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Appendix
Piping between refrigerant branch kits
! Choose from the following table in accordance with the total capacity index of all the indoor
! Do not let the connection piping exceed the main refrigerant piping size.
Indoor unit total capacity index
Piping between refrigerant branch kit and indoor unit
! Match to the size of the connection piping on the indoor unit.
140
units connected below this.
< 150
≤
150
x< 200
≤
200
x< 290
≤
290
x< 420
≤
420
x< 640
≤
640
x< 920
920 ≤
Indoor unit capacity type
20 · 25 · 32 · 40· 50 type
63 · 80 · 100 · 125 type
200 type
250 type
Piping size (O.D.)
Gas pipe
φ15.9
φ19.1
φ22.2
φ28.6
φ34.9
φ41.3
Piping size (O.D.)
Gas pipe
φ12.7
φ15.9
φ19.1
φ22.2
SiEN34-705
(Unit:mm)
Liquid pipe
φ9.5
φ12.7
φ15.9
φ19.1
(Unit:mm)
Liquid pipe
φ6.4
φ9.5
General Information
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