Samsung AVXTJ series Guía de instalación descargar pdf (Pagina 41)

Installation guide

Problem analysis

 Due to inappropriate protection management of the

internal/external surface of the copper, large amount of

oxidation, dust and foreign substances were seen.

Consequence

 R410a refrigerant is very sensitively react with foreign

substances : Mineral oil and compress oil will not solve

with each other due to different chemical characteristics.

Therefore, wax type materials may clog the hole of

EEV or oil filters.

Standard procedure

 Check if it is clean enough.

Foreign substances in the copper pipe < 30mg/10m

 R410a copper pipe must be kept clean until it is

installed.

Proper method

 Select the clean copper pipes and make sure no dust or

foreign substances get into the

pipe when you keep

them. If the copper pipes are stored for a long period of

time, clean them(blow Nitrogen) before installation to

remove undesired material from inside of the pipe

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Samsung AVXTJ series Guía de instalación Pagina 41