Samsung AVXTJ series Guía de instalación Pagina 45

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Installation guide
45
Problem analysis
Regular vacuum pump was used in vacuum operation.
Consequence
If the power of the vacuum pump cuts off unexpectedly
then the oil gets back to the refrigerant system due to
pressure difference.
Standard procedure
Use the vacuum pump which is 100% dedicated for
R410a system with stop valve.
Proper method
Purchase and use the vacuum pump with the stop valve.
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