IM 1287-6 • REBEL APPLIED ROOFTOP 94 www.DaikinApplied.com
Recovery
Recovery Cylinders
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 is available. All
cylinders to be used should be designated for the
recovered refrigerant and labeled for that refrigerant.
Cylinders should be complete with a pressure-relief
valve and associated shut-o valves in good working
order. Empty recovery cylinders should be evacuated
and, if possible, cooled before recovery occurs.
Recovery Equipment
The recovery equipment should 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
all appropriate refrigerants including, when applicable,
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.
Recovered Refrigerant
The recovered refrigerant should be returned to the
refrigerant supplier in the correct recovery cylinder
with the relevant waste transfer note assigned. Do not
mix refrigerants in recovery units and especially not in
cylinders.
Compressor or Compressor Oils
If compressors or compressor oils are to be removed,
ensure that they have been evacuated to an acceptable
level to make certain that no refrigerant remains within
the lubricant. The evacuation process should be carried
out prior to returning compressors to the supplier(s).
Only electric heating to the compressor body shall be
employed to accelerate this process.
Handling and Storage
Precautions for Safe Handling
• Waste air is to be released into the atmosphere only via
suitable separators. Open and handle receptacle with
care.
• Keep ignition sources away.
• Do not smoke near the unit.
• Protect against electrostatic charges.
Conditions for Safe Storage
• Requirements to be met by storerooms and receptacles:
— Store only in unopened original receptacles
— Store in a cool and dry location
• Further information about storage conditions:
— Keep container tightly sealed
— Store in cool, dry conditions in well sealed receptacle
— Protect from heat and direct sunlight
• Maximum storage temperature:
— 40°C
Disposal
• Waste treatment method recommendation:
— Must be specially treated adhering to ocial
regulations.
— Incineration in an adequate incinerator is
recommended.
— Uncleaned packaging disposal must be made
according to ocial regulations.
• Ensure sucient ventilation at the working place.
• Remove the refrigerant. R-32 should always be recovered
and never released directly into the environment. Take
care that the drained refrigerant will not cause any
danger. In doubt, one person should guard the outlet.
Take special care that drained refrigerant will not oat
back into the building.
• Evacuate the refrigerant circuit.
• Purge the refrigerant circuit with nitrogen for 5 min.
• Evacuate again.
• Cut out the compressor and drain the oil
Competence of Personnel
There are specic procedures that must be
followed for the installation, repair, maintenance,
and decommissioning of equipment that uses A2L
refrigerants.
Training for these procedures is carried out by national
training organizations or manufacturers that are
accredited to teach the relevant national competency
standards that may be set in legislation. The achieved
competence should be documented by a certicate.
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