Idiomas disponibles
Idiomas disponibles
In addition to conventional charging procedures, the following requirements shall be followed.
- Make sure that contamination of different refrigerants does not occur when charging equipment
is used. Hoses or lines should be as short as possible to minimize the amount of refrigerant they
contain.
- The cylinders will remain in a vertical position.
- Make sure the refrigeration system is grounded before charging the system with refrigerant.
- Label the system when the upload is complete (if it has not already been done).
- Extreme care should be taken not to overfill the refrigeration system.
Before recharging the system, it will be pressure tested with OFN. The system must be leak
checked at the end of the charge and before start-up. In addition, a follow-up leak test will be
performed before leaving the site.
9 DISASSEMBLY
Before carrying out this procedure, it is essential that the technician is fully familiar with the
equipment and all its details. It is recommended good practice that all refrigerants are safely
recovered. Before carrying out the task, an oil and refrigerant sample will be taken in case an
analysis is necessary before the reuse of the regenerated refrigerant. It is essential that electrical
power is available before beginning the task.
a) Familiarize yourself with the equipment and its operation.
b) Electrically isolate the system.
c) Before attempting the procedure, ensure that mechanical handling equipment is available, if
necessary, to handle the refrigerant cylinders; all personal protective equipment is available and
used correctly; the recovery process is supervised at all times by a competent person; Recovery
equipment and cylinders meet appropriate standards.
d) Pump down the refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various
parts of the system.
f) Make sure the cylinder is positioned on the scale before recovery occurs.
g) Start the recovery machine and run it according to the manufacturer's instructions.
h) Do not overfill cylinders. (No more than 80% liquid cargo by volume).
i) Do not exceed the maximum working pressure of the cylinder, even temporarily.
j) When the cylinders have been filled correctly and the process is complete, ensure that the
cylinders and equipment are promptly removed from the site and all insulation
Equipment valves are closed.
k) Recovered refrigerant shall not be charged to another refrigeration system unless it has been
cleaned and checked.
10 LABELING
The equipment must be labeled indicating that it has been discharged and emptied of refrigerant.
The label must be dated and signed.
Make sure there are labels on the equipment indicating that the equipment contains flammable
refrigerant.
11 RECOVERY
When removing refrigerant from a system, whether for maintenance or disassembly, it is
recommended good practice that all refrigerants be safely disposed of. When transferring
refrigerant to cylinders, ensure that only suitable refrigerant recovery cylinders are used. Make
sure the correct number of cylinders to maintain the full system charge is available. All cylinders
to be used are designated for the recovered refrigerant and labeled for that refrigerant (ie special
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