13
English
Piping between outdoor unit (*2) and refrigerant branch kit (part A).
Choose from the following table in accordance with the outdoor unit system capacity type.
Piping between refrigerant branch kits.
Piping between refrigerant branch kit and BS unit.
Piping between BS unit and refrigerant branch kit.
Choose from the following table in accordance with the total capacity type of all the
indoor units connected downstream.
*1 Connection piping must not exceed the refrigerant piping size between outdoor
unit and refrigerant branch kit (part A).
*2 When selecting 2 pipes line (gas pipe and liquid pipe), use suction gas pipe
column for gas pipe and liquid pipe column for liquid pipe.
Piping between refrigerant branch kit, BS unit and indoor unit.
Match to the size of the connection piping on the indoor unit.
Pipe size selection
Piping between outdoor unit
multi connection piping kit
and outdoor unit (part C)
Piping between outdoor unit multi
connection piping kits (part B)
Piping between outdoor unit and
refrigerant branch kit (part A)
Refer to the diagram below and select the appropriate
piping from the tables on the right.
Independent
unit 1
Independent
unit 2
Independent
unit 3
Independent
unit 4
Piping between outdoor unit multi connection piping kit and outdoor unit (part C).
Choose from the following table in accordance with the capacity type of
the outdoor unit connected.
Piping between outdoor unit multi connection piping kits (part B).
Choose from the following table in accordance with the total capacity of all
the outdoor units connected upstream.
Indoor capacity
index
< 56 kW
56 kW
≤
x< 112 kW
112 kW
≤
x< 160 kW
160 kW
≤
x< 180 kW
180 kW
≤
x< 224 kW
224 kW
≤
x< 330 kW
330 kW
≤
x< 370 kW
370 kW
≤
x< 470 kW
470 kW
≤
x< 530 kW
530 kW
≤
x< 710 kW
710 kW
≤
x< 784 kW
784 kW
≤
x< 1010 kW
1010 kW
≤
φ
12.7
φ
15.9
φ
19.1
φ
22.2
φ
25.4
φ
28.6
φ
34.9
φ
15.9
φ
19.1
φ
25.4
φ
28.6
φ
34.9
φ
41.3
φ
9.5
φ
12.7
φ
15.9
φ
19.4
φ
25.4
φ
28.6
φ
12.7
φ
15.9
φ
19.1
φ
22.2
φ
25.4
φ
28.6
φ
6.4
φ
9.5
φ
12.7
φ
15.9
φ
19.1
φ
9.5
φ
12.7
φ
15.9
φ
19.1
φ
22.2
Standard
size
Maximum
size
Maximum
size
Standard
size
Maximum
size
Standard
size
Suction gas pipe
HP/LP gas pipe
Liquid pipe
Indoor capacity
index
Q20
Q25
Q32
Q40
Q50
Q63
Q80
Q100
Q125
Q200
Q250
φ
12.7
φ
15.9
φ
19.1
φ
22.2
φ
15.9
φ
19.1
φ
25.4
φ
28.6
φ
6.4
φ
9.5
φ
9.5
φ
12.7
φ
15.9
Standard size
Maximum
size
Standard size
Maximum
size
Suction gas pipe
Liquid pipe
Piping size (O.D.)
Piping size (O.D.)
Q280 type
Q360 type
Q460 type
Q500 type
Q540 type
Q636 type
Q712 type
Q744 type
Q816 type
Q848 type
Outdoor unit
capacity type
Q140 type
Q180·212 type
Model name of
outdoor unit
system
Piping size (O. D.)
φ
22.2
φ
25.4
φ
28.6
φ
34.9
φ
9.5
φ
12.7
φ
15.9
φ
19.1
φ
12.7
φ
15.9
φ
19.1
φ
22.2
φ
28.6
φ
34.9
φ
41.3
φ
19.1
φ
22.2
φ
25.4
φ
28.6
φ
22.2
φ
25.4
φ
28.6
Suction gas pipe
Standard
size
Maximum
size
Standard
size
Maximum
size
Standard
size
Maximum
size
HP/LP gas pipe
Liquid pipe
Outdoor unit
capacity type
280·320
360~392
424
500~532
604~636
Piping size (O. D.)
Suction gas pipe
φ
22.2
φ
25.4
φ
28.6
HP/LP gas pipe
φ
19.1
φ
22.2
φ
25.4
Liquid pipe
φ
9.5
φ
12.7
φ
15.9
Piping size (O. D.)
Suction gas pipe
φ
15.9
φ
19.1
HP/LP gas pipe
φ
12.7
φ
15.9
Liquid pipe
φ
9.5
(unit : mm)
(unit : mm)
(unit : mm)
(unit : mm)
01_EN_3P226891-14T.fm Page 13 Tuesday, September 30, 2014 7:48 PM
