Innova IGZDUP35V2NI-1 Owner's Manual page 67

(4) Pump down refrigerant system, if possible.
(5) If a vacuum is not possible, make a manifold so that refrigerant can be
removed from various parts of the system.
(6) Make sure that cylinder is situated on the scales before recovery takes
place.
(7) Start the
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.
5.4.9 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 flammable refrigerant.
5.4.10 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. 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 machine and operate
63
in accordance with