VEVOR VBPYCE-70 Bedienungsanleitung Seite 7

available.
Charging procedures
In addition to conventional charging procedures, the following requirements shall be followed:
①Ensure that contamination of different refrigerants does not occur when using charging equipment.
Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them.
Cylinders shall be kept upright.
②Ensure that the refrigeration system is earthed prior to charging the system with refrigerant.
③Label the system when charging is complete (if not already).
④Extreme care shall be taken not to overfill the refrigeration system. Prior to recharging the system it
shall be pressure tested with OFN. The system shall be leak tested on completion of charging but prior
to commissioning. A follow up leak test shall be carried out prior to leaving the site.
Decommissioning
Before carrying out this procedure, it is essential that the technician is completely familiar with the
equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely.
Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is
required prior to re-use of reclaimed refrigerant. It is essential that electrical power is available before
the task is commenced.
①Become familiar with the equipment and its operation.
②Isolate system electrically.
③Before attempting the procedure ensure that:
Mechanical handling equipment is available, if required, for handling refrigerant cylinders;
All personal protective equipment is available and being used correctly;
The recovery process is supervised at all times by a competent person;
Recovery equipment and cylinders conform to the appropriate standards.
④Pump down refrigerant system, if possible.
⑤If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts
of the system.
⑥Make sure that cylinder is situated on the scales before recovery takes place.
⑦Start the recovery machine and operate in accordance with manufacturer's instructions.
⑧Do not overfill cylinders. (No more than 80 % volume liquid charge).
⑨Do not exceed the maximum working pressure of the cylinder, even temporarily.
⑩When the cylinders have been filled correctly and the process completed, make sure that the
cylinders and the equipment are removed from site promptly and all isolation valves on the equipment
are closed off.
⑪Recovered refrigerant shall not be charged into another refrigeration system unless it has been
cleaned and checked.
Labeling
Equipment shall be labeled stating that it has been decommissioned and emptied of refrigerant. The
label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment
contains flammable refrigerant.
Recovery
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended
good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders,
ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct
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