Installation Of Air-Conditioner; Refrigerant Pipe Work - Samsung DVM S ECO AM XMDG Series Installation Manual

Installation of Air-conditioner

AA
• 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 connected and the compressor
Warning
works with the service valve open, the pipe inhales the air and it makes the pressure inside of the
refrigerant cycle abnormally high which may lead to explosion and injury.

Refrigerant pipe work

f X
The length of refrigerant pipe should be as short as possible and the height difference between an indoor and outdoor
unit should be minimized.
f X
Piping work must be done within allowable piping length, height difference, and the allowable length after branching.
f X
The pressure of the R-410A is high. Use only certified refrigerant pipe and follow the installation method.
f X
After installing the pipes, calculate the total length of the pipe to check if additional refrigerant is needed. When you
need to charge the additional refrigerant, make sure to use R-410A refrigerant.
f X
Use clean refrigerant pipe and there shouldn
f X
Use tools and accessories that fit on R-410A only.
Installation process/purpose
Tools
Pipe cutter
Flaring tool
Refrigerant
machine oil
Refrigerant pipe installation
Torque wrench
Pipe bender
Nitrogen gas
Welder
Manifold gage
Air tightness test ~ additional
Refrigerant
charging hose
Vacuum pump
Electronic scale for
refrigerant filling
Air leak tester
Pipeline joint
'
t be any harmful ion, oxide, dust, iron content or moisture inside pipe.
Apply refrigerant oil on
Connect flare nut with
Prevent oxidation within
Air tightness test
Vacuumizing, refrigerant
filling as well as inspecting
refrigerant charging
Compatible (Use products which contain the check valve to prevent
Pipe drying the oil from flowing backward into the outdoor unit.) Use the one
Must use the flare nut equipped with the product. Refrigerant leakage may occur
when the conventional flare nut for R-22 is used.
Compatibility with conventional tool
Pipe cutting
Pipe flaring
Exclusive ether oil, ester oil, alkali
flared part
pipe
Pipe bending
the pipe
Pipe welding
Need exclusive one to prevent mixture
of R-22 refrigerant oil use and also the
measurement is not available due to
operation
Need exclusive one since there is risk of
refrigerant leakage or inflow of impurities
that can be vacuumed up to -100.7kpa(5Torr).
Gas leak test
(Ones used for R-134a is compatible)
Compatible
benzene oil or synthetic oil
Compatible
high pressure
Compatible
Need exclusive one
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