Arctiko SF SERIES, Руководство по обслуживанию, Страница: 15 / 48

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Cylinder with manometer Vacuum suction of the filling hose
Loading procedure
Make vaccum. See section 3h.
The cylinder with manometer is connected to the coupler of the process piping.
Remember to first made vacuum in the filling hose to empty it.
Fill the refrigerant into the system until the pressure gauge on the pressure tube shows approx. 5 bar.
Start the compressor and let it run for 2-3 min. Open to the cylinder again to get out the remaining refrigerant.
When the pressure in the bottle shows 1 bar, the bottle is empty.
It is important that the valve is closed immediately, in order to avoid that the refrigerant runs back into the cylinder.
Now the cooling system is filled with refrigerant and only needs to be closed.
Disconnect the filling hose with pressure gauge from the process piping.
Push the process piping and pressure pipes together with a special tongs.
Cut off valve with a pipe cutter.
Closing the process tube on systems with flammable refrigerants must be performed by professionals with a Lok
Ring end sleeve. It is recommended NOT to solder system.
Clean the pipe with steel wool or emery cloth. Use rotational movement in order to avoid scratching the length of
the tube.
Apply LokPreb to the end of the tube.
Turn the end sleeve 360° so that the LokPreb is placed around the tube.
Squeeze the end sleeve together with the special tool as shown in the illustration.
Start the freezer and control the function of the unit.