Toshiba RAV-GM561ATP-E Service Manual page 10

When the refrigerant gas leaks, find up the leaked position and repair it surely.
If the leaked position cannot be found up and the repair work is interrupted, pump-down and
tighten the service valve, otherwise the refrigerant gas may leak into the room.
When gas touches to fire such as fan heater, stove or cocking stove, it may generate noxious
gases, causing a fire though the refrigerant gas itself is innocuous.
When installing equipment which includes a large amount of charged refrigerant such as a multi
air conditioner in a sub-room, it is necessary that the density does not the limit even if the
refrigerant leaks. If the refrigerant leaks and exceeds the limit density, an accident of shortage
of oxygen is caused.
Compulsion
Tighten the flare nut with a torque wrench in the specified manner.
Excessive tighten of the flare nut may cause a crack in the flare nut after a long period, which
may result in refrigerant leakage.
Nitrogen gas must be used for the airtight test.
The charge hose must be connected in such a way that it is not slack.
For the installation/moving/reinstallation work, follow to the Installation Manual.
If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or
fire is caused.
Install the outdoor unit properly in a location that is durable enough to support the weight of
the outdoor unit. Insufficient durability may cause the outdoor unit to fall, which may result in injury.
Once the repair work has been completed, check for refrigerant leaks, and check the insulation
resistance and water drainage. Then perform a trial run to check that the air conditioner is
running properly.
After repair work has finished, check there is no trouble. If check is not executed, a fire, electric
shock or injury may be caused. For a check, turn off the power breaker.
Check after
After repair work (installation of front panel and cabinet) has finished, execute a test run to check
repair
there is no generation of smoke or abnormal sound. If check is not executed, a fire or an electric
shock is caused. Before test run, install the front panel and cabinet.
Check the following matters before a test run after repairing piping.
• Connect the pipes surely and there is no leak of refrigerant.
• The valve is opened.
Do not
Running the compressor under condition that the valve closes causes an abnormal high
operate the
pressure resulted in damage of the parts of the compressor and etc. and moreover if there is
unit with the
leak of refrigerant at connecting section of pipes, the air is suctioned and causes further
valve closed.
abnormal high pressure resulted in burst or injury.
Only a qualified installer ( 1) or qualified service person ( 1) is allowed to relocate the air co
nditioner. It is dangerous for the air conditioner to be relocated by an unqualified individual since
a fire, electric shocks, injury, water leakage, noise and/or vibration may result.
Check the following items after reinstallation.
Check after 1) The earth wire is correctly connected.
reinstallation
2) The power cord is not caught in the product.
3) There is no inclination or unsteadiness and the installation is stable.
If check is not executed, a fire, an electric shock or an injury is caused.
When the service panel of the outdoor unit is to be opened in order for the compressor or the
area around this part to be repaired immediately after the air conditioner has been shut down, set
the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the
service panel. If you fail to heed this warning, you will run the risk of burning yourself because the
compressor pipes and other parts will be very hot to the touch. In addition, before proceeding with
the repair work, wear the kind of insulated heat-resistant gloves designed to protect electricians.
When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor,
Cooling
inverter or the areas around these parts to be repaired immediately after the air conditioner has
check
been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes
before opening the service panel.
If you fail to heed this warning, you will run the risk of burning yourself because the fan motor,
reactor, inverter heat sink and other parts will be very hot to the touch.
In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant
gloves designed to protect electricians.
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FILE NO. SVM-18043