Safety Precautions - Fujitsu AJ**A72LBTF Installation Instruction Sheet

1. SAFETY PRECAUTIONS

• Be sure to read this Sheet thoroughly before installation.
• The warnings and precautions indicated in this Sheet contain important information pertaining to your safety. Be sure to observe
them.
• After installing the unit, perform a test run to make sure the unit operates normally. Then, explain to the customer how to operate and
maintain the unit.
• Hand this Sheet, together with the Operating Manual to the customer.
Request the customer to keep them on hand for future use, such as for relocating or repairing the unit.
This mark indicates procedures which, if improperly performed, might lead to the death or serious
WARNING!
injury of the user.
• Request your dealer or a professional installer to install the unit in accordance with this Sheet.
An improperly installed unit can cause serious accidents such as water leakage, electric shock, or fire.
If the unit is installed in disregard of the instructions in the Installation Instruction Sheet, it will void the
manufacturer's warranty.
• For installation purposes, be sure to use the parts supplied by the manufacturer or other prescribed parts.
The use of non-prescribed parts can cause serious accidents such as the unit to fall, water leakage, electric
shock, or fire.
• To install a unit that uses the R410A refrigerant, use dedicated tools and piping materials that have been
manufactured specifically for R410A use.
Because the pressure of the R410A refrigerant is approximately 1.6 times higher than the R22, failure to use
dedicated piping material or improper installation can cause rupture or injury.
Furthermore, it can cause serious accidents such as water leakage, electric shock, or fire.
• Do not introduce any substance other than the prescribed refrigerant into the refrigeration cycle.
If air enters the refrigeration cycle, the pressure in the refrigeration cycle will become abnormally high and
cause the piping to rupture.
• Be sure to install the unit as prescribed, so that it can withstand earthquakes and typhoons or other strong
winds.
Improper installation can cause the unit to topple or fall, or other accidents.
• If there is a refrigerant leakage, make sure that it does not exceed the concentration limit.
If a refrigerant leakage exceeds the concentration limit, it can lead to accidents such as oxygen starvation.
• If a refrigerant leakage occurs during operation, immediately vacate the premises and thoroughly ventilate
the area.
If the refrigerant is exposed to fire, it will create a hazardous gas.
• Electrical work must be performed in accordance with this Sheet by a person certified under the national or
regional regulations. Be sure to use a dedicated circuit for the unit.
An insufficient power supply circuit or improperly performed electrical work can cause serious accidents
such as electric shock or fire.
• For wiring, use the prescribed type of wires, connect them securely, making sure that there are no external
forces of the wires applied to the terminal connections.
Improperly connected or secured wires can cause serious accidents such as overheating the terminals,
electric shock, or fire.
• Securely install the electrical box cover on the unit.
An improperly installed electrical box cover can cause serious accidents such as electric shock or fire through
exposure to dust or water.
• Do not turn ON the power until all work has been completed.
Turning ON the power before the work is completed can cause serious accidents such as electric shock or
fire.
• After the installation, make sure there is no refrigerant leakage.
If the refrigerant leaks into the room and becomes exposed to a source of fire such as a fan heater, stove, or
burner, it will create a hazardous gas.
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