Design Technical Manual

Table Of Contents
z
Pipe size table "F"
Between separation tube and indoor unit or RB unit and indoor unit
Cooling capacity of
indoor unit (Btu/h)
Outside diameter: in. (mm)
Liquid pipe Gas pipe
4,000, 7,500, 9,500, 12,000,
14,000
1/4" (6.35) 1/2" (12.70)
18,000, 24,000, 30,000,
34,000
3/8" (9.52) 5/8" (15.88)
36,000, 48,000 3/8" (9.52) 3/4" (19.05)
60,000 3/8" (9.52) 3/4" (19.05)
72,000, 96,000 1/2" (12.70) 7/8" (22.22)
For connecting to 4/7/9/18/36/48TLAV1 models, reducer (locally purchased) is necessary.
For details of reducer diameter, refer to the table below.
Cooling capacity of
indoor unit (Btu/h)
Reducer diameter: in. (mm)
Liquid pipe Gas pipe
4,000, 7,500, 9,500 3/8" (9.52) 1/2" (12.70)
18,000 1/4" (6.35) 3/8" (9.52) 1/2" (12.70) 5/8" (15.88)
34,000, 36,000, 48,000 5/8" (15.88) 3/4" (19.05)
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SYSTEM
DESIGN
SYSTEM
DESIGN