User Manual

3
Information on Servicing
FLAMMABLE REFRIGERANTS, ensure that there are labels on the equipment
stating the equipment contains flammable refrigerant.
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 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 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.
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
all appropriate refrigerants including, when applicable, 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.
Recovery