LG MULTI V IV PRO ARUN080LLH4 Installation Manual page 28

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
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Refrigerant piping system
1 Outdoor Unit
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 Unit
Ⓔ : Header
Ⓕ : Sealed piping
Header Method
Ⓐ : Outdoor Unit
Ⓑ : Header branch
Ⓒ : Indoor Units
Ⓓ : Sealed piping
L165 m
l 40 m (90 m : Conditional application)
h 30 m
L 165 m
40 m(90 m : Conditional application)
L 165 m
30 m
40 m