LG MULTI V WATER II ARWB Serie Manual De Instalación página 36

Refrigerant piping system
Prohibited pattern
1
48k
• Capacity sum of indoor units is over 160kBtu/hr.
Pattern
1 Indoor unit
Low pressure Gas pipe Outdoor
High pressure Gas pipe
Unit
1) Keep the 40m distance from the first branch to the farthest indoor.
2) Keep the horizontal level between HR units.( for example, the same flour. )
Y branch
36 Outside Unit
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HR1
2 3 4
48k 48k 48k
1
12k
Y Branch pipe
A
HR
Unit
Liquid pipe
Indoor Indoor
Unit
Keep the sum of indoor capacity is under 160kBtu/hr
1) under 40m
2) Same horizontal level
Indoor Indoor Indoor Indoor
Unit Unit Unit Unit
Keep the sum of indoor capacity is under 160kBtu/hr
Pattern
A
A
HR1 HR2
2 3 4 5 6
24k 24k 12k 48k 48k
Gas pipe Indoor
Unit
Liquid pipe
1) under 40m
2) Same horizontal level
Indoor Indoor
Unit Unit Unit
Indoor Indoor Indoor Indoor
Unit Unit Unit Unit
HR1 HR2
1 2 3
36k 36k 36k
7 8
48k 12k
It's not allowed
Height
4
36k