LG Multi V Water IV ARWN080LAS4 Manual De Instalación página 14

14
PIPE CONNECTIONS BETWEEN INDOOR
AND OUTSIDE UNIT
Refrigerant piping system
1 Outside Unit
Y branch method
Ⓐ : Outside Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Indoor Units
Ⓓ : Downward Indoor Unit
Combination of Y
branch/header method
Ⓐ : Outside Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Header
Ⓕ : Sealed piping
Header method
Ⓐ : Outside Unit
Ⓑ : 1st branch
Ⓒ : Indoor Units
Ⓓ : Sealed piping
Ⓔ : Header
Series Outside Units (2 Units ~ 4 Units)
Y branch method
Ⓐ : Outside Unit
10m or
Ⓑ : 1st branch (Y branch)
less
Ⓒ : Indoor Units
Ⓓ : Downward Indoor Unit
Ⓔ : Connection branch
pipe between Outside
units: ARCNN41
Ⓕ : Connection branch
pipe between Outside
units : ARCNN31
Ⓖ : Connection branch
pipe between Outside
units : ARCNN21
Combination of Y branch/
header method
Ⓐ : Outside Unit
Ⓑ : 1st branch(Y branch)
Ⓒ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Connection branch pipe
between Outside units :
ARCNN41
Ⓕ : Connection branch pipe
between Outside units :
ARCNN31
Ⓖ : Connection branch pipe
between Outside units :
ARCNN21
Ⓗ : Header
Ⓘ : Sealed piping
Indoor
Unit
L150m (200 m : Conditional application)*
l 40m (90 m : Conditional application)*
h 40m
❈ * : See the Table 4
L150m (200 m : Conditional application)*
l 40m (90 m : Conditional application)*
❈ * : See the Table 4
L 150m
l 40m
h 40m
ODU Capacity
Slave3 Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
Slave2
Slave1
Master
L150m (200 m : Conditional application)*
l 40m (90 m : Conditional application)*
C
C C C
h 40m
❈ * : See the Table 4
❈ * : See the Table 4
Header method
Ⓐ : Outside Unit
Ⓑ : Header
Ⓒ : Indoor Units
Ⓓ : Sealed piping
Ⓔ : Connection branch pipe
between Outside units :
ARCNN41
Ⓕ : Connection branch pipe
between Outside units :
ARCNN31
Ⓖ : Connection branch pipe
between Outside units :
ARCNN21
Pipe Connection Method between outside unit
/indoor unit
Master
L2
L3
E
Indoor
Unit
1st branch
l 40m
h 40m
❈ See Table 2
A : Refrigerant pipe diameter from outside unit to first branch
E : Refrigerant pipe diameter for outside unit capacity
(Slave 1+ Slave 2+ Slave 3)
F : Refrigerant pipe diameter for outside unit capacity
(Slave 2+ Slave 3)
G : Refrigerant pipe diameter for outside unit capacity(Slave 3)
Level Difference (H1)
Indoor
(Outside unit ↔ Outside unit)
Unit
Max length from first branch to
each outside unit (L1,L2,L3,L4)
( Table 1 ) Limit Pipe length
Classifica-
Section
tion
Maximum
length(L)
Outside Unit
Max pipe Equivalent
length pipe length
Indoor Unit
Total pipe
Outside Unit
Difference in
Max
height(H)
Indoor Unit
difference
Indoor Unit Difference in
in height
Indoor Unit
Longest pipe
length after
length(l)
1st branch
❈ * : See Table 4
Slave3
Slave2
Slave1
10m or
Master
less
C C
C C
h 40m
Slave1
Slave2
H1
L4
F G
L1
Refrigerant pipe diameter from outside unit to first branch
2m
Less than 10m
(equivalent length of piping 13m)
Type Y branch Y/header branch
A+B+b ≤150 m
A+B+C+D+e
A+C+e ≤150 m
≤ 150 m
pipe
(Conditionally
(Conditionally 200 m)*
200m)*
175 m 175 m
(Conditionally (Conditionally
225 m)* 225 m)*
300 m 300 m
(Conditionally (Conditionally
length
500 m)* 500 m)*
50 m 50 m
40 m 40 m
height(h)
40 m 40 m
Pipe
(Conditionally (Conditionally
90m)* 90m)*
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
L 150m
l 40m
C
C
Slave3
Header
branch
A+f ≤
150 m
175 m
300 m
(Condition-
ally 500 m)*
50 m
40 m
40 m