LG THERMA V HN0613M Installation Manual page 17

SAFETY INSTRUCTIONS
17
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 flammable
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 flammable 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.