Panasonic CS-YU18ZKA, Operating Instructions Manual

29

Safety Precautions

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 instructions.

h) Do not over 

fi

 ll 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 

fi

 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 refrigerating system unless it 
has been cleaned and checked.

• Electrostatic charge may accumulate and 

create a hazardous condition when charging 
or discharging the refrigerant. To avoid 

fi

 re or 

explosion, dissipate static electricity during 
transfer by grounding and bonding containers 
and equipment before charging/discharging.

11. 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 

fl

 ammable 

refrigerant.

12. 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.

• 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 

fl

 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 

fl

 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.

English