Sharp AY-XPC12ZU Operation Manual page 10

SAFETY PRECAUTIONS (Continued)
– 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.
d) Pump down 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 that cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with instructions.
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i) Do not exceed the maximum working pressure of the cylinder, even temporarily.
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sure that the cylinders and the equipment are removed from site promptly and all
isolation valves on the equipment are closed off.
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and emptied of refrigerant. The label shall be dated and signed. For appliances
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When removing refrigerant from a system, either for servicing or decommission-
ing, it is recommended good practice that all refrigerants are removed safely.
When transferring refrigerant into cylinders, ensure that only appropriate refrig-
erant recovery cylinders are employed. Ensure that the correct number of cyl-
inders for holding the total system charge is available. All cylinders to be used
are designated for the recovered refrigerant and labelled for that refrigerant (i. e.
special cylinders for the recovery of refrigerant). Cylinders shall be complete with
pressure-relief valve and associated shut-off valves in good working order. Empty
recovery cylinders are evacuated and, if possible, cooled before recovery occurs.
The recovery equipment shall be in good working order with a set of instructions
concerning the equipment that is at hand and shall be suitable for the recovery
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ERANTS. In addition, a set of calibrated weighing scales shall be available and
in good working order. Hoses shall be complete with leak-free disconnect cou-
plings and in good condition. Before using the recovery machine, check that it is
in satisfactory working order, has been properly maintained and that any associ-
ated electrical components are sealed to prevent ignition in the event of a refrig-
erant release. Consult manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant supplier in the cor-
rect recovery cylinder, and the relevant waste transfer note arranged. Do not mix
refrigerants in recovery units and especially not in cylinders.
If compressors or compressor oils are to be removed, ensure that they have
been evacuated to an acceptable level to make certain that FLAMMABLE RE-
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be carried out prior to returning the compressor to the suppliers. Only electric
heating to the compressor body shall be employed to accelerate this process.
When oil is drained from a system, it shall be carried out safely.
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2022/7/22 10:59:13