Table of Contents
Advertisement
Installation and base ground work for an outdoor unit
• If the outdoor unit is not fixed securely, product may fall and it might cause loss of life or property
damage.
CAUTION
• Do not install the outdoor unit on a wood palette.
• Fix the outdoor unit securely to the base ground with anchor bolts.
• The manufacturer is not responsible for the damage occurred by not adhering to the standard of
the installation.
• To protect the outdoor unit from external condition such as rain, install it on the base ground and
connect the drain pipe to the drainage.
Refrigerant pipe installation
Refrigerant pipe work
▶ The length of refrigerant pipe should be as short as possible and the height difference between an indoor
unit and outdoor unit should be minimized.
▶ The piping length between the outdoor unit and the indoor unit may not exceed the allowable piping
length, height difference, and the allowable length after branching is done.
▶ The pressure of the R-410A is high. Use only certified refrigerant pipe and follow the installation method.
▶ After pipe installation, charge the refrigerant according to the length of the pipe and R-410A refrigerant
should be used.
▶ Use clean refrigerant pipe and there shouldn't be any harmful ion, oxide, dust, iron content or moisture
inside pipe.
▶ Use tools and accessories that fit on R-410A only.
• When installing, make sure there is no leakage. When collecting the refrigerant, stop the
compressor first before removing the connection pipe. If the refrigerant pipe is not properly
WARNING
connected and the compressor works with the service valve open, the pipe inhales the air and it
makes the pressure inside of the refrigerant cycle abnormally high. It may cause explosion and
injury.
Tool
Pipe cutter
Flaring tool
Refrigerant oil
Torque wrench
Pipe bender
Nitrogen gas
Brazing tool
Manifold gauge
Refrigerant charging
hose
12
Work
Apply refrigerant oil on
Refrigerant pipe
work
Connect flare nut with
Inhibition of oxidization
Air tightening test
Air tightening
test ~ additional
and checking operation
refrigerant charging
Pipe cutting
Pipe flaring
flared part
pipe
Pipe bending
Pipe brazing
Vacuuming, charging
If compatible with conventional tool
Compatible
Exclusive ether oil, ester oil, alkali benzene
oil or synthetic oil
Compatible
Need exclusive one to prevent mixture
of R-22 refrigerant oil use and also the
measurement is not available due to the
high pressure.
Need exclusive one due to the refrigerant
leakage or inflow of impurities.
Advertisement
Table of Contents
