11
SA
FETY PREC
A
U
T
IO
N
S
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; and
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 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
13. Charging procedures
minimize
14. Decommissioning
in
-
-
-
-
-
-