40
Refrigerant pipe installation
Size of the pipe between branch joints (B)
Select the pipe size according to the sum of indoor unit capacity which will be connected after the branch.
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However, if the size of the pipe between branch joints (B) is bigger than the size of the pipe connected to
the outdoor unit (A), apply the pipe size (A).
Indoor unit capacity (kW)
Branch pipe length within 45m
Branch pipe length between 45~90m
Liquid pipe (mm)
Gas pipe (mm)
Liquid pipe (mm)
Gas pipe (mm)
ߣߧߢऌ̧Ǯɇ͝ʒɵʪ̷ͱи
Ø 9.52
Ø 15.88
Ø 12.70
Ø 19.05
ߣߧߣ̧Ǯड़ߤߤߦ̧Ǯ
Ø 19.05
Ø 22.22
ߤߤߧ̧Ǯड़ߤߪߣ̧Ǯ
Ø 22.22
Ø 25.40
note1)
ߤߪߤ̧Ǯड़ߦߢߢ̧Ǯ
Ø 12.70
Ø 28.58
Ø 15.88
Ø 28.58
ߦߢߣ̧Ǯड़ߦߧߢ̧Ǯ
Ø 31.75
note2)
ߦߧߣ̧Ǯड़ߨߥߥ̧Ǯ
Ø 15.88
Ø 19.05
ߨߥߦ̧Ǯड़ߩߢߥ̧Ǯ
Ø 34.92
Ø 38.10
note3)
ߩߢߦ̧Ǯड़߫ߪߦ̧Ǯ
Ø 19.05
Ø 22.22
߫ߪߧ̧Ǯड़ߣߥߧߤ̧Ǯ
Ø 41.28
Ø 41.28
ߣߥߧߥ̧Ǯड़ߣߨ߫ߢ̧Ǯ
Ø 53.98
ĮЭʪθߣߨ߫ߢऌ̧Ǯ
Ø 22.22
Ø 53.98
Ø 25.40
note1)
Note1) If Ø 25.40 pipe is not available on site, use Ø 28.58 pipe.
Note2) If Ø 31.75 pipe is not available on site, use Ø 34.92 pipe.
Note3) If Ø 38.10 pipe is not available on site, use Ø 41.28 pipe
Size of the pipe between the branch joint and the indoor unit
Make a selection according to outdoor unit capacity.
Indoor unit capacity (kW)
ť̈Χʪϑ̈іʪ࣑ĮU͔͔࣒
Liquid pipe
Gas pipe
ߨߢऌ̧Ǯɇ͝ʒɵʪ̷ͱи
Ø 6.35
Ø 12.70
ߨߣ̧Ǯड़ߣߨߢ̧Ǯ
Ø 9.52
Ø 15.88
ߣߨߣ̧Ǯड़ߤߥߢ̧Ǯ
Ø 9.52
Ø 19.05
ĮЭʪθߤߥߢऌ̧Ǯ
Ø 9.52
Ø 22.22
