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MundoClima MUPO-07-C9 Manual

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3.Through blowing process, the system is charged into the anaerobic nitrogen to reach
the working pressure under the vacuum state, then the oxygen free nitrogen is emitted
to the atmosphere, and in the end, vacuumize the system. Repeat this process until all
refrigerants in the system is cleared.
After the final charging of the anaerobic nitrogen,
discharge the gas into the atmosphere pressure, and then the system can be welded.
This operation is necessary for welding the pipeline.
Procedures of Charging Refrigerants
As a supplement to the general procedure, the following requirements need to be added:
- Make sure that there is no contamination among dif
ferent refrigerants when using a
refrigerant charging device. The pipeline for charging refrigerants should be as short as
possible to reduce the residual of refrigerants in it.
- Storage tanks should remain vertically up.
- Make sure the grounding solutions are already taken before the refrigeration system is
charged with refrigerants.
- After finishing the charging (or when it is not yet finished), label the mark on the system.
- Be careful not to overcharge refrigerants.
Scrap and Recovery
Before this procedure, the technical personnel shall be thoroughly familiar with the
equipment and all its features, and make a recommended practice for refrigerant safe
recovery
. For recycling the refrigerant, shall analyze the refrigerant and oil samples
before operation. Ensure the required power before the test.
1.Be familiar with the equipment and operation.
2.Disconnect power supply.
3.Before carrying out this process, you have to make sure:
●If necessary, mechanical equipment operation should facilitate the operation of the
refrigerant tank.
●All personal protective equipment is effective and can be used correctly.
●The whole recovery process should be carried out under the guidance of qualified
personnel.
●The recovering of equipment and storage tank should comply with the relevant
national standards.
4.If possible, the refrigerating system should be vacuumized.
5.If the vacuum state can't be reached, you should extract the refrigerant in each part of
the system from many places.
6.Before the start of the recovery, you should ensure that the capacity of the storage
tank is sufficient.
7.Start and operate the recovery equipment according to the manufacturer's instructions.
Scrap:
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