Toshiba RAV-GM2241AT8-E1 Installation Manual page 8

CAUTION
This air conditioner adopts the HFC refrigerant (R32) which does
not destroy the ozone layer
• R32 refrigerant has a high working pressure and is apt to be affected
by impurities such as water, oxidizing membrane, and oils. Therefore,
during installation work, be careful that water, dust, previous
refrigerant, refrigerating machine oil, or other substances do not enter
the R32 refrigeration cycle.
• Special tools for R32 or R410A refrigerant are required for
installation.
• For connecting pipes, use new and clean piping materials, and make
sure that water and/or dust does not enter.
Cautions for outdoor unit installation space
• In the event that the outdoor unit is installed in a small space and
refrigerant leaks, accumulation of highly concentrated refrigerant may
cause a fire hazard. Therefore, be sure to follow the installation space
instructions in the Installation Manual, and provide open space on at
least one of the four outdoor unit sides.
• In particular, when both the discharge and intake sides face walls and
obstacles are also placed on both sides of the outdoor unit, take steps
to provide space wide enough for a person to pass (600 mm or more)
on one side to prevent leaked refrigerant from accumulating.
Obstacle
600 mm or more
To disconnect the appliance from main power supply
• This appliance must be connected to the main power supply by
means of a switch with a contact separation of at least 3 mm.
Do not wash air conditioners with pressure washers
• Electric leaks may cause electric shocks or fires.
13-EN
Building or wall
Outdoor unit
Obstacle
Building or wall
– 7 –
Precautions for recovery of refrigerant when servicing or
relocating unit
• 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.
• Empty 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 all appropriated 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.
14-EN