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
working 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.
CAUTION
8