LG ARUM080LTE5 Engineering Product Data Book page 737

Multi V 5
7. Refrigerant piping system
7.3.4 Examples of Wrong Pipe Connections
• The pipes between the outdoor units must maintain horizontal levelness or give an inclination to prevent a back
flow toward the slave outdoor unit. Otherwise, the unit may not operate properly.
(Example 1)
Toward indoor unit
(Example 2)
Toward indoor unit
(Example 3)
Toward indoor unit
• Apply Oil Trap as shown below when the length of the pipe between the outdoor units is more than 2m(6.6ft).
Otherwise, the unit may not operate properly.
(Example 1)
Toward indoor unit
26
Pipe inclination (2° or more)
2m(6.6ft)
≤
Installation of Outdoor Units
Toward indoor unit
Toward indoor unit
Toward indoor unit