Toshiba RAV-RM561FT-EN Service Manual page 10

After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as
before. Perform the work so that the cabinet or panel does not catch the inner wires.
If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused at
user fs side.
Assembly/
Check that wiring will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any
Wiring
other adverse environmental effects. The check shall also take into account the effects of aging or continual
vibration from sources such as compressors or fans.
After the work has finished, be sure to use an insulation tester set (500VMΩ) to check the resistance is
1MΩ 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 fs side.
Insulator
check
When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas comes in contact with a fire, it may generate noxious gases, causing a fire.
A closed room filled with leaked refrigerant gas is dangerous due to a shortage of oxygen.
Be sure to execute ventilation.
If refrigerant gas has leaked during the installation work, ventilate the room immediately.
Ventilation
If the leaked refrigerant gas comes in contact with fire, it may generate noxious gases, causing a fire.
When the refrigerant gas leaks, find out the leaked position and repair it surely.
If the leaked position cannot be found out 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 cooking 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 in a sub-room, it is
necessary that the concentration does not the limit even if the refrigerant leaks.
If the refrigerant leaks and exceeds the limit concentration, an accident of shortage of oxygen is caused.
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.
Compulsion
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.
After repair work (installation of front panel and cabinet) has finished, execute a test run to check there is no
Check after
generation of smoke or abnormal sound. If check is not executed, a fire or an electric shock is caused.
repair
Before test run, install the front panel and cabinet.
Be sure to fix the screws back which have been removed for installation or other purposes.
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.
Running the compressor under condition that the valve closes causes an abnormal high pressure resulted
Do not in damage of the parts of the compressor and etc. and moreover if there is leak of refrigerant at connecting
operate the section of pipes, the air is suctioned and causes further abnormal high pressure resulted in burst or injury.
unit with the
valve closed.
Only a qualified installer (
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.
1) The earth wire is correctly connected.
Check after
2) The power cord is not caught in the product.
reinstallation
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.
(∗1) Refer to the "Definition of Qualified Installer or Qualified Service Person."
∗
1) or qualified service person (
– 10 –
∗
1) is allowed to relocate the air conditioner.