Table des Matières
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1. The following should always be observed for safety . . . . . . . . . . . . . . . . . . . . 2
2. Selecting the installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Installation diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1. The following should always be observed for safety
other electrical appliances to it.
installing the air conditioner.
Warning:
Could lead to death or serious injury.
Warning:
Do not install the unit by yourself (user).
whom you purchased the unit.
falling, or leakage of water.
Install the unit securely in a place that can bear the weight of the unit.
If the installation location cannot bear the weight of the unit, the unit could fall
circuit.
Ground the unit correctly.
Do not connect the ground wire to a gas pipe, water pipe, lightning rod or tel-
ephone ground. Defective grounding could cause electric shock.
wiring.
Failure to do so could cause electric shock.
If gas leaks and accumulates around the unit, it could cause an explosion.
an electric shock, the unit falling, etc.
Caution:
Depending on the installation area, install a Ground Fault Interrupt (GFI)
If the Ground Fault Interrupt (GFI) circuit breaker is not installed, an electric shock
could occur.
If there is defect in the drainage/piping work, water could drip from the unit, and
damage household items.
2
4. Refrigerant piping work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5. Electrical work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Caution:
Could lead to serious injury when operated incorrectly.
: Indicates a part which must be grounded.
Warning:
Securely attach the electrical cover to the indoor unit and the service panel
to the outdoor unit.
If the electrical cover of the indoor unit and/or the service panel of the outdoor
unit are not attached securely, dust, water, etc. could collect in the unit and could
Any foreign substances in the refrigerant circuit can cause abnormal pressure
rise or an explosion.
heater, space heater, stove, etc., harmful gases will be generated.
The pressure of R410A is 1.6 times higher than R22. Not using the appropriate
tools and materials, or improper installation could cause the pipes to burst caus-
necting the refrigerant pipes.
If the refrigerant pipes are disconnected while the compressor is running and the
stop valve is open, air could be drawn in and the pressure in the refrigeration cycle
could become abnormally high, causing the pipes to burst.
When installing the unit, securely connect the refrigerant pipes before start-
If the compressor is started before the refrigerant pipes are connected and the
stop valve is open, air could be drawn in and the pressure in the refrigeration cycle
could become abnormally high, causing the pipes to burst.
Install the unit according to national wiring regulations.
If small animals enter the unit and damage its electrical parts, it could cause a
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