51
ENGLISH
2 . Connecting refrigerant pipe for outdoor unit
Classification
Front side connection
Right/left (and bottom) side connection
Working process
• First, remove the piping cover from the outdoor
unit .
• Separate the knock-out hole that you are going
to use . If you separate the knock-out hole that
is going to be unused, small animals such as
squirrels and rats may get into the unit through
the hole .
• Fix the bottom side of the piping cover first and
then fix the top part of it .
• Separate the knock-out hole at the bottom side
of the unit and install the pipe .
• After installing and insulating the pipe, close up
the remaining holes . If not, small animals such
as rats and squirrels may get inside the unit .
C/O
Liquid side
pipe
Gas side
pipe
Gas side
pipe
Liquid side
pipe
Caution for welding the pipe to an outdoor unit
• When welding the pipe, the unit may get damaged by the heat and flame from welding . Use a flame proofing
cloth to protect the unit from a welding fire or flame . Sensor for detecting outside temperature is located on the
left side of the welding part so be extra careful not to damage the sensor when welding .
• The O-ring and Teflon packing inside service valve may get damaged by the heat from welding . Wrap the
bottom side of the service valve with a wet cloth and weld it as shown in the illustration . Also, water dripping
from the wet cloth may interrupt the welding . Make sure the water does not drip from the wet cloth .
• Make sure that connected pipes does not interrupt each other or make contact with the product . (Vibration may
cause damage to the pipes .)
• When removing the sealed pipe on the bottom side of the service valve, cut it with a pipe cutter first and then
start the welding . When the sealed pipe is welded without cutting, you may get injured by the refrigerant within
the pipe .
< C/O >
Temperature
sensor
Wet towel
Service port
Service valve
CAUTION