Samsung AVXTJ series Guía de instalación descargar pdf (Pagina 71)

Installation guide

5. Refrigerant pipe flushing

[3 major effects]

(1) Removal of oxidation bubbles formed inside copper pipes when “nitrogen replacement is

insufficient” during brazing work

(2) Removal of extraneous material and moisture from pipes when covering has been insufficient

(3) Check connection in pipes linking outdoor and indoor units (Both liquid and gas pipes)

[Example of procedure]

(1) Set pressure regulator on nitrogen cylinder.

∗The gas used must be nitrogen.

(There is a danger of condensation if fleon or carbon dioxide are used and oxygen carries the

risk of explosions.)

(2) Connect the charge hose from the pressure regulator to the service port on the liquid pipe side

of the outdoor unit.

(3) Fit blanking plugs to all indoor units (B) other than unit A.

(4) Open the main valve on the nitrogen cylinder and set the pressure regulator to 72 psi.

Flushing is a method of cleaning extraneous matter out of pipes using pressurized gas.

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Samsung AVXTJ series Guía de instalación Pagina 71