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Never touch electrical components immediately after the power supply has been turned off. Electrical shock may
occur. After turning off the power, always wait 10 minutes or more before touching electrical components.
1 Do not use this equipment with air or any other unspecified refrigerant in the refrigerant lines.
Excess pressure can cause a rupture.
2 During installation, make sure that the refrigerant pipe is attached firmly before you run the compressor.
Do not operate the compressor under the condition of refrigerant piping not attached properly with 2-way or 3-way
valve open.
This may cause abnormal pressure in the refrigeration cycle that leads to rupture and even injury.
3 Do not remove the connection pipe while the compressor is in operation with 2-way or 3-way valve open.
This may cause abnormal pressure in the refrigeration cycle that leads to rupture and even injury.
4 When installing and relocating the air conditioner, do not mix gases other than the specified refrigerant (R410A) to
enter the refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an abnormally high value
and cause rupture, injury, etc.
5 When installing this system in high humidity locations, install using ground fault equipment breakers (often referred
to in other countries as an ELCB earth leakage current breaker) to reduce the risk of leaking current which may
result in electric shock or potential fire.
1 For the air conditioner to operate satisfactorily, install it as outlined in this installation manual.
2 Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts.
This installation manual describes the correct connections using the installation set available from our standard
parts.
3 Installation work must be performed in accordance with national wiring standards by authorized personnel only.
4 Also, do not use an extension cord.
5 Do not turn on the power until all installation work is complete.
6 Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation.
7 There is not extra refrigerant in the outdoor unit for air purging.
8 Use a vacuum pump for R410A exclusively.
9 Using the same vacuum pump for different refrigerants may damage the vacuum pump or the unit.
0 Use a clean gauge manifold and charging hose for R410A exclusively.
A If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with a
flame, it produces a toxic gas.
•
Be careful not to scratch the air conditioner when handling it.
•
After installation, explain correct operation to the customer, using the operating manual.
•
Let the customer keep this installation manual because it is used when the air conditioner is servi
DANGER
WARNING
WARNING
ced or moved.
En-3
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