Toshiba MML-AP0124H2UL Service Manual page 5

Insulator check
Ventilation
Be attentive to
electric shock
Compulsion
Check after repair
Check after reinstallation
Put on gloves
Cooling check
After the work has finished, be sure to use an insulation tester set (500V Megger) to
check the resistance is 2M
metal section (Ground position).
If the resistance value is low, a disaster such as a leak or electric shock is caused at user's
side.
When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas touches a fire, poisonous gas generates.
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.
When checking the circuit with the power-ON, use rubber gloves and do not touch
the charging section.
If touching to the charging section, an electric shock may be caused.
When you access inside of the service panel to repair electric parts, wait for about
five minutes after turning off the breaker. Do not start repairing immediately.
Otherwise you may get electric shock by touching terminals of high-voltage capacitors.
Natural discharge of the capacitor takes about five minutes.
When the refrigerant gas leaks, find the leaked position and repair it.
If the leaked position cannot be found and the repair work is interrupted, pump-down
and tighten the service valve, otherwise the refrigerant gas may leak into the room.
The poisonous gas generates when gas touches fire such as fan heater, stove or cocking
stove 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.
For the installation/moving/reinstallation work, follow to the Installation Manual.
If an incorrect installation is done, a trouble on the refrigerating cycle, water leak, electric
shock or fire is caused.
After repair work has been 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 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 items after reinstallation.
1) The ground wire is correctly connected.
2) The power cord is not caught in the product.
3) There is no inclination or unsteadiness and the installation is stable.
Be sure to put on the gloves ( ) and a long sleeved shirt:
otherwise an injury may be caused with the parts, etc.
( ) Heavy gloves such as work gloves
When the power is turned on, start to work after the equipment has been sufficiently
cooled.
As temperature of the compressor pipes and others became high due to cooling/heating
operation, a burn may be caused.
WARNING
or more between the charge section and the non-charge
CAUTION
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