1
Safety awareness
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 overfill cylinders. (No more than 80 % volume liquid
charge).
i) Do not exceed the maximum working pressure of the
cylinder,even temporarily.
j) 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.
k) Recovered refrigerant shall not be charged into another
refrigeration system unless it has been cleaned and checked.
10. 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.
Local Air-conditioner / User Manual
21 / 396 EN