HOMCOM 821-035V90 Instructions Manual page 16

18.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 number of
cylinders for holding the total system charge are available. All cylinders to be used
a r e d e s i g n e d f o r t h e r e c o v e r e d r e f r i g e r a n t a n d l a b e l e d f o r t h a t
refrigerant(i.e.special cylinders for the recovery of refrigerant). Cylinders shall be
complete with pressure relief value and associated shut-off values 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 of
flammable refrigerants.
In addition, a set of calibrated weighing scales shall be available and in good work
order. Hoses shall be complete with leak-free disconnect couplings and in good
condition.
Before using the recovery machine, check that it is in satisfactory working order,
has been properly maintained and that any associated electrical components are
sealed to prevent ignition in the event of a refrigerant release. Consult
manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant supplier in the correct
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 refrigerant does
not remain within the lubricant. The evacuation process shall 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.
19.Transport of equipment containing flammable refrigerants
Determined by local regulations.
20.Discarded appliances supplies flammable refrigerants
See National Regulations.
21.Storage package(unsold)equipment
Storage package protection should be constructed such that mechanical damage
to the equipment inside the package will not cause a leak of the refrigerant charge.
The maximum number of pieces of equipment permitted to be stored together will
be determined by local regulations.
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