LG ARUN040lSS0 - Refrigerant Piping System

14
Multi V S Outdoor Unit
Installation of Outdoor Units
7. Refrigerant Piping System
7.1 Pipe Connection Method between outdoor unit / indoor unit
7.1.1 Standard Model (ARUN****SS0)
WARNING
• Branch pipe can not be used after header.
• 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.
– Indoor units should be installed at lower position than the header.
Y branch method
ⓐ: Outdoor Unit
ⓑ: 1st branch (Y branch)
ⓓ: Indoor Units
Combination of Y branch / header method
ⓐ: Outdoor Unit
ⓑ: 1st branch (Y branch)
ⓒ: Y branch
ⓓ: Indoor Units
ⓔ: Header
ⓕ: Sealed piping
Header method
ⓐ: Outdoor Unit
ⓓ: Indoor Units
ⓔ: Header
ⓕ: Sealed piping
h 15m
L150m (200 m : Conditional application)*
l 40m (90 m : Conditional application)*
H 50m
Indoor
Unit
a
b
d
dd
d
d
d
d
h 15m
H 50m
d
dd
L150m (200 m : Conditional application)*
l 40m (90 m : Conditional application)*
a
b
c
e
d
d
f
l 40m
h 15m
H 50m
L150m
a
e
d
d
d
d
dd
f