LG ARUM080LTE5 Engineering Product Data Book page 731

Multi V 5
7. Refrigerant piping system
■ Series Outdoor Unit Connection
Y branch method
ⓐ Outdoor Unit
ⓑ 1st branch (Y branch)
ⓓ Indoor Units
ⓖ Connection branch pipe between outdoor units
(ARCNN41)
ⓗ Connection branch pipe between outdoor units
(ARCNN31)
ⓘ Connection branch pipe between outdoor units
(ARCNN21)
Combination of Y branch / header Method
ⓐ Outdoor Unit
ⓑ 1st branch (Y branch)
ⓒ Y branch
ⓓ Indoor Units
ⓔ Header
ⓕ Sealed piping
ⓖ Connection branch pipe between outdoor units
(ARCNN41)
ⓗ Connection branch pipe between outdoor units
(ARCNN31)
ⓘ Connection branch pipe between outdoor units
(ARCNN21)
Header Method
ⓐ Outdoor Unit
ⓓ Indoor Units
ⓔ Header
ⓕ Sealed piping
ⓖ Connection branch pipe between outdoor units
(ARCNN41)
ⓗ Connection branch pipe between outdoor units
(ARCNN31)
ⓘ Connection branch pipe between outdoor units
(ARCNN21)
WARNING
Pipe length after header branching
• It is recommended that difference in length of the
pipes connected to the indoor units (a~f) is
minimized.
Performance difference between indoor units may
occur.
WARNING
• Branch pipe can not be used after header
≫ Maximum number of connectable units could be different in accordance with model line up of target region.
20
a
10m [32.8ft]
or less
i
h
g
L 150m [492ft] (200m [656ft] : Conditional application)*
l 40m [131ft] (90m [295ft] : Conditional application)*
b
d
d
h 40m [131ft]
Slave3
a
Slave2
Slave1
Master
10m [32.8ft]
or less
i
h
g
b
Slave3
a
Slave2
Slave1
Master
10m [32.8ft]
or less
i
h
g
e
d d
h 40m [131ft]
Installation of Outdoor Units
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
Indoor
a d
Unit
d
d
d
d
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
e
f
d d d
L150m [491ft](200m [656ft] : Conditional application)*
l 40m [131ft] (90m [295ft] : Conditional application)*
c d
d
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
L 200m [656ft]
l 40m [131ft]
f
d d d
d