z
Pipe size table "B"
(Between separation tube to separation tube (header))
Total cooling capacity of
indoor unit (Btu/h)
Outside diameter
:
in. (mm)
Liquid pipe Gas pipe
15,000 to 35,999 3/8" (9.52) 5/8" (15.88)
36,000 to 78,000 3/8" (9.52) 3/4" (19.05)
¾
If the selected pipe diameter between separation tubes (based on table "B") becomes larger
than the pipe diameter between outdoor unit and the rst separation tube (based on table
"A"), select the pipe whose diameter is equal to the one between outdoor unit and the rst
separation tube.
(If pipe diameter B > A, select pipe size from table A)
¾
"Total cooling capacity of indoor unit" is the total value for the cooling capacity of indoor unit
connected downstream.
z
Pipe size table "C"
(Between separation tube (header) to 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)
*1: If the selected pipe diameter between separation tube (header) to indoor unit (based on
table "C") becomes larger than the pipe diameter between separation tube to separation tube
(header) (based on table "B"), select the pipe whose diameter is equal to the one between
separation tube to separation tube (header).
(If pipe diameter C > B, select pipe size from table B)
It is necessary to change a connection pipe diameter using Reducer.
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)
- (06 - 17) -
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