Toshiba RAV-GP561ATW-E Service Manual page 11

The refrigerant used by this air conditioner is the R32.
Check the used refrigerant name and use tools and materials of the parts which match with it.
For the products which use R32 refrigerant, the refrigerant name is indicated at a position on the outdoor unit
where is easy to see.
To prevent miss charging, the route of the service port is changed from one of the former R22.
Be careful for miss charging since a charging port of R32 is the same diameter as that of R410A.
Do not use any refrigerant different from the one specified for complement or replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure or
explosion of the product or an injury to your body.
For an air conditioner which uses R32, never use other refrigerant than R32.
For an air conditioner which uses other refrigerant (R22, R410A etc.), never use R32.
If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle and an injury
due to breakage may be caused.
If the different type of refrigerants are mixed in, be sure to recharge the refrigerant.
Do not charge refrigerant additionally.
If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle
changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is
Refrigerant
charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of
breakage or injury.
Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming, and then
newly recharge the specified amount of liquid refrigerant.
In this time, never charge the refrigerant over the specified amount.
When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than R32 into the
specified refrigerant.
If air or others is mixed with the refrigerant, abnormal high pressure generates in the refrigerating cycle resulted
in cause of injury due to breakage.
After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and
flows near a fire source, such as a cooking range, it may generate noxious gases, causing a fire.
Never recover the refrigerant into the outdoor unit.
When the equipment is moved or repaired, be sure to recover the refrigerant with recovering device.
The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakage or injury
is caused.
After repair work, surely assemble the disassembled parts, the removed lead wires and wiring processing as
before.
Perform the work so that the cabinet or panel does not catch the inner wires.
Assembly /
If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused at user's
Cabling
side.
After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistance is 1 MΩ
or more between the charge section and the non-charge metal section (Earth position).
If the resistance value is low, a disaster such as a leak or electric shock is caused at user's side.
Insulator check
When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas touches to a fire, it may generate noxious gases, causing a fire.
A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage of oxygen
occurs. Be sure to execute ventilation.
Ventilation
If refrigerant gas has leaked during the installation work, ventilate the room immediately.
If the leaked refrigerant gas comes in contact with fire, it may generate noxious gases, causing a fire.
WARNING
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