Refrigerant pipe installation
10. Installation
Allowable length of the refrigerant pipe and the installation examples
Classification
Single Installation
Module installation
Installing only with Y-joint
Branch joint
Outdoor unit
Indoor unit
b
h
i
j
k
l
m
n
H2
1
2
3
4
5
6
7
8
aA
B
C
D
E
F
G
H1
c
d
e
f
g
p
Branch joint
Outdoor unit
Indoor unit
h
i
j
k
l
m
n
1
2
3
4
5
6
7
H2 8
H1
b
c
d
e
f
g
aA B
C
D
E
F
G
p
Installing with Y-joint
and distribution header
b
j
H2
1
2
3
4
5
6
7
8
a
A
B
i
k
H1
c
d
e
f
g
h
Branch joint
Distribution header
Outdoor unit
Indoor unit
Indoor unit
1
2
3
4
5
6
7
8
B
H1
a
b
j
H2
k
i
A
d
c
e
f
g
h
Outdoor unit
Distribution header
Branch joint
Installing only with
distribution header
i
8
7
6
5
4
3
2
1
b
c
a
f
e d
h
H1
H2
g
Outdoor unit
Indoor unit
Distribution header
e
i
H1
8
f
6
g
7
h
H2
5
4
3
2
1
b
c
d
a
Outdoor unit
Indoor unit
Distribution header
Classification
Example
Remarks
Maximum
allowable
length of pipe
Outdoor
Ї̈͝ϩड़
Indoor unit
Actual length
(Equivalent
length)
200 m(656')
and below
[220 m(722')
and below]
Installing only with
Y-joint
ɇॐɵॐʀॐʒॐʪॐ˙ॐ˝ॐΧख़
200
m(220 m)/656'(722')
Equivalent length
Y-joint: 0.5 m (1.64'),
Distribution header:
1 m(3.28')
Installing with Y-joint
and distribution header
ɇॐɵॐ˵ख़ߤߢߢ͔࣑ߤߤߢ͔࣒ࡥɇॐ̈ॐ̧ख़
200 m(220 m)/656'(722')
Installing only with
distribution header
ɇॐ̈ख़ߤߢߢ͔࣑ߤߤߢ͔࣒ࢩߨߧߨ࣑ߩߤߤ࣒
Total length
of pipe (m)
1000 m(3281')
or less
Installing only with
Y-joint
a+b+c+d+e+f+g+h+i+
̟ॐ̧ॐ̷ॐ͔ॐ͝ॐΧख़ߣߢߢߢ͔࣑ߥߤߪߣ࣒
-
Installing with Y-joint
and distribution header
a+b+c+d+e+f+g+h+i+j+k
ख़ߣߢߢߢ͔࣑ߥߤߪߣ࣒
-
Installing only with
distribution header
a+b+c+d+e+f+g+h+i
ख़ߣߢߢߢ͔࣑ߥߤߪߣ࣒
-
Outdoor
Ї̈͝ϩड़
Outdoor unit
(Module
installation)
Pipe length
10 m (33') or
less
уख़ߣߢ͔࣑ߥߥ࣒ࡥцख़ߣߢ͔࣑ߥߥ࣒ࡥіख़ߣߢ͔࣑ߥߥ࣒
x
z
y
Equivalent
length
13 m (43') or
less
уख़ߣߥ͔࣑ߦߥ࣒ࡥцख़ߣߥ͔࣑ߦߥ࣒ࡥіख़ߣߥ͔࣑ߦߥ࣒
Maximum
allowable
height
difference of
pipe
Outdoor unit
ड़Ã͝ʒͱͱθЇ̈͝ϩ
110/110 m(361'/361')
Note 2)
²ߣख़ߣߣߢࢩߣߣߢ͔࣑ߥߨߣࢩߥߨߣ࣒
Indoor unit
ड़Ã͝ʒͱͱθЇ̈͝ϩ
50 m (164') or less
²ߤख़ߧߢ͔࣑ߣߨߦ࣒
But, when wall-mount type indoor units with EEV (AM****NQD* / AM****NVD*) is installed, H2 is 15 m(49') or less.