DiversiTech International Ltd.
Glaisdale Drive East, NG8 4LY
Nottingham United Kingdom
Email sales@pumph.co.uk
Phone +44(0)115 900 5858
10
FOR FURTHER INSTALLATION ADVICE PLEASE CALL THE TECHNICAL SUPPORT HELPLINE ON 0115 900 5858.
a) Become familiar with the equipment and its operation. b) Isolate system electrically. c) Before attempting
the procedure ensure that: Mechanical handling equipment is available, if required, for handling refrigerant
cylinders;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
manufacturer’s instructions. h) Do not overll cylinders. (No more than 80 % volume liquid charge). i) Do
not exceed the maximum working pressure of thecylinder, even temporarily. j) When the cylinders have been
lled 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. k) Recovered refrigerant shall not be
charged into another refrigeration system unless it has been cleaned and checked.
15. Labelling
Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall
be dated and signed. Ensure that there are labels on the equipment stating the equipment contains ammable
refrigerant.
16. 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 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 of ammable
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 ammable 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.
WARNING
FOR USING R32/R290 REFRIGERANT
PAC-H-12
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