-
the mechanical-handling equipment is available, if required, for the handling of
refrigerant cylinders.
-
all personal protective equipment is available and correctly used.
-
the recovery process is supervised at all times by a competent person.
-
cylinders and recovery equipment conform to appropriate standards.
D. Pump the cooling system, if possible.
E. If vacuum is not possible, make a manifold so that refrigerant can be removed from
various parts of the system.
F.
Ensure that the cylinder is positioned on the scale before recovery takes place.
G. Switch on the recovery machine and operate it according to the manufacturer's
instructions.
H. Do not overfill cylinders (no more than 80% of the liquid charge by volume).
I.
Do not exceed the maximum working pressure of the cylinder, even temporarily.
J.
When the cylinders have been correctly filled and the process is complete, ensure that
the cylinders and equipment are promptly removed from the site and that all equipment
isolation valves are closed.
K. Recovered refrigerant must not be charged to another refrigeration system, unless
cleaned and checked.
10. Labelling
The equipment must be labelled stating that it has been taken out of service and drained
of refrigerant. The labelling must be dated and signed. Ensure that there are labels on the
equipment stating that the equipment contains flammable refrigerant.
11. Recovery
-
When refrigerant is removed from a system, either for service or decommissioning, it is
recommended good practice that all refrigerants are removed safely.
-
When transferring refrigerant to cylinders, ensure that only suitable refrigerant-recovery
cylinders are used. Ensure that the correct number of cylinders is available to support
the total load of the system. All cylinders to be used are designated for the recovered
refrigerant and labelled for that refrigerant (i.e. special refrigerant recovery cylinders).
Cylinders must be completed with pressure-relief valves and associated shut-off valves
in good working order. Empty recovery cylinders are evacuated and, if possible, cooled
before recovery takes place.
-
Recovery equipment must be in good working order with a set of instructions concerning
the equipment at hand and must be suitable for the recovery of flammable refrigerants.
In addition, a set of calibrated weighing scales must be available and in good working
order. Hoses must be complete with disconnect couplings free of leakage and in good
running order. Before using the recovery machine, check that it is in good running order,
properly maintained, and that all associated electrical components are sealed to prevent
ignition in the event of refrigerant release. Consult the manufacturer in case of doubt.
BIGDRY 10000 EXPERT CONNECTED
ENGLISH
67