14
Installation manual
5.3 Select the refrigerant piping type
5.4 Size of joint pipes for outdoor unit
Base on the following tables, select the diameters of the outdoor
unit connective pipes. If the main accessory pipe is larger than the
main pipe, select the larger.
Example: parallel connection of three outdoor units 12+12+22
(total capacity 46 HP). The total capacity of the indoor units is
1,290, if the equivalent length of all pipes is
≥
90 m. According to
Tab.5-5, the main pipe’s diameter is
Φ
38.1/
Φ
22.2. The master
unit’s diameter is
Φ
38.1/
Φ
19.1 based on Tab.5-3. Select the
largest. The main pipe’s diameter is
Φ
38.1/
Φ
22.2.
Model
Gas side
Liquid side
Φ
22.2
Φ
22.2
Φ
25.4
Φ
28.6
Φ
28.6
Φ
28.6
Φ
31.8
Φ
41.2
Φ
9.53
Φ
9.53
Φ
12.7
Φ
12.7
Φ
15.9
Φ
15.9
Φ
19.1
Φ
22.2
When the equivalent length of all liquid
pipes < 90 m, the size of the main pipe (mm)
8HP
10HP
12~14HP
16HP
18~22HP
24HP
26~34HP
52~66HP
Φ
38.1
Φ
19.1
36~50HP
Size of joint pipes for 410A outdoor unit
Table.5-4
BJF-330-CM(i)
BJF-330-CM(i)
BJF-330-CM(i)
BJF-710-CM(i)
BJF-710-CM(i)
BJF-710-CM(i)
BJF-710-CM(i)
BJF-1344-CM(i)
BJF-E1344-CM(i)
Model
Gas side
Liquid side
Φ
22.2
Φ
25.4
Φ
28.6
Φ
31.8
Φ
31.8
Φ
31.8
Φ
38.1
Φ
44.5
Φ
12.7
Φ
12.7
Φ
15.9
Φ
15.9
Φ
19.1
Φ
19.1
Φ
22.2
Φ
25.4
When the equivalent length of all liquid
pipes
≥
90m, the size of main pipe(mm)
8HP
10HP
12~14HP
16HP
18~22HP
24HP
26~34HP
52~66HP
Φ
38.1
Φ
22.2
36~50HP
Size of joint pipes for 410A outdoor unit
Table.5-5
BJF-330-CM(i)
BJF-330-CM(i)
BJF-710-CM(i)
BJF-710-CM(i)
BJF-710-CM(i)
BJF-710-CM(i)
BJF-1344-CM(i)
BJF-1344-CM(i)
BJF-E1344-CM(i)
The 1st
branch joint
The 1st
branch joint
5.5 Branch pipes for outdoor unit
Table.5-6
8~12HP
14~22HP
Model
Φ
25.4
Φ
12.7
Φ
31.8
Φ
15.9
Gas side
Liquid side
Outdoor unit pipe connection
opening dimension (mm)
Φ
44.5
Φ
25.4
68~88HP
BJF-E1344-CM(i)
Φ
54.0
Φ
25.4
68~88HP
BJF-E1500-CM(i)
Fig.5-3
N
1
(140)
N
4
(140)
N
7
(140)
N
8
(140)
N
10
(28)
N
12
(56)
N
11
(140)
N
3
(71)
N
6
(28)
N
13
(56)
A
B
G
H
K
I
L
C
E
L
1
L
2
L
3
L
5
L
7
L
8
L
11
L
12
L
9
a
c
d
f
g
h
j
l
m
k
M
L
g1
g2
g3
G1
W3
(12)
W2
(12)
W1
(22)
D
N
2
(140)
b
L
4
N
5
(140)
F
L
6
e
N
9
(71)
i
J
L
10
Содержание Xpower Series
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