DC Inverter
X-Series
for R410A Unitary Split Air Conditioner
35
(7) Start the recovery machine and operate in accordance with manufacturer's
instructions.
(8) Do not overfill cylinders. (No more than 80% volume liquid charge).
(9) Do not exceed the maximum working pressure of the cylinder, even temporarily.
(10) When the cylinders have been filled correctly and the process completed, make
sure that the cylinders and the equipment are removed from site promptly and
all isolation valves on the equipment are closed off.
(11) Recovered refrigerant shall not be charged into another refrigeration system
unless it has been cleaned and checked.
4.4.7 Labelling
Equipment shall be labelled stating that it has been decommissioned and emptied
of refrigerant. The label shall be dated and signed.
4.4.8 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 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.
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 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 Notice 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
