Connection Of High/Low Pressure Common Pipe; Outdoor Units - LG Multi V Plus II System Installation Manual

Connection of High/Low Pressure Common pipe

Slave
Outdoor Unit

2 outdoor units

1. For the High/Low Pressure Common pipe, connect both Master Outdoor Unit and Slave (1, 2) Outdoor Unit to the pipe
(field supply) by using elbows (field supply)
2. For cutting the pipe, connect the High/Low Pressure Common pipe after removing burrs, dusts and foreign materials
within the pipe. Otherwise, the product may not operate due to sludge within the pipe.
When connecting the pipes from the front of
the outdoor unit, remove part
When connecting the pipes from the side of the
outdoor unit, remove part
out" part).
WARNING
After installing the pipe, clog the pipe excavation inlet of the front panel and the side panel
(Wire may be damaged due to entry of rats, animals, etc).
CAUTION
When you use the Hi/Low pressure common pipe to
connect 2~3 ODU, please remove the factory supplied
rubber cap as shown in the figure.
When installing just one ODU, please make
sure to remove the factory supplied rubber
cap and replace it by brazing the copper
cap supplied with manual in ODU.
If you do not replace the factory supplied
rubber cap, there might be refrigerant leakage.
Master
Outdoor Unit
.
(the whole "Knock
(Front)
Outdoor unit
joint pipe (used
for more than 2
units installation)
Refrigerant piping installation
Slave2
Outdoor
Unit
Slave1
Outdoor
Master
Unit
Outdoor Unit
3 outdoor units
(Side)
Cut the pipe with a
cutter to suit the length.
Service
(Don't cut less than 70mm)
port cap
Liquid
valve
Cap
Gas valve Gas valve Gas valve
Installation Manual 25
Knock out
Communication Line Hole
Power Cable Hole
Pipe Hole