LG ARUN040lSS0 - Refrigerant Piping System

7. Refrigerant Piping System
15
Multi V S Outdoor Unit
Installation of Outdoor Units
7.1.2 Compact Model (ARUN****SL0)
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
l 40m
h 15m
H 30m
L80m
Indoor
Unit
b
d
ddd
d
d
d
a
l 40m
h 15m
H 30m
L80m
b
c
d
d
d
d
d
e
f
a
l 40m
h 15m
H 30m
L80m
e
f
d
d
ddd
d
a