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10.4. Indoor unit installation
• Precautions shown here are differentiated between Warnings and Cautions. Those that have much chance for leading to
significant result such as fatality or serious injury if wrong installation would have been carried out are listed compiling them
especially into the column of Warnings
.
However, even in the case of items which are listed in the column of Cautions, such items also have a chance for leading to
significant result depending on the situations.
In either case, important descriptions regarding the safety are listed, then observe them without fail.
• As to indications with illustration
• After installation work has been completed, do not only make sure that the unit is free from any abnormal condition through the
execution of try run but also explain how to use and how to perform maintenance of this unit to the customer according to the
instruction manual.
In addition, request the customer to keep this manual for installation work together with instruction manual.
CEILING TYPE AIR CONDITIONERS INSTALLATION INSTRUCTIONS
Precautions in terms of safety
Carry out installation work with reliability after throughout reading of this “Precautions in terms of safety”.
This mark means “Caution” or “Warning”. This mark means “Earth”.
Warnings
The appliance must be installed by technician, who takes into
account the requirements given by ISO5149 or eventual equiva-
lent requirements.
If installing inside a small room, measures should be taken to pre-
vent refrigerant levels from building up to critical concentrations in
the event of a refrigerant leak occurring. Please discuss with the
place of purchase for advice on what measures may be necessary
to prevent critical concentrations being exceeded. If the refrigerant
leaks and reaches critical concentration levels, there is the danger
that death from suffocation may result.
As to installation, request the distributor or vendor to perform it.
Imperfection in installation caused by that having been carried out
by the customer himself may lead to water leakage, electric shock,
fire, etc.
Securely attach the protective covers for the outdoor unit connec-
tion cables and power cord so that they do not lift up after installa-
tion. If the covers are not properly attached and installed, the
terminal connections may overheat, and fire or electric shock may
result.
Carry out the installation work with reliability according to this
manual for installation work.
Imperfection in installation leads to water leakage, electric shock,
fire, etc.
Switch off all supplies before accessing any electrical part.
Carry out the installation work with reliability on the place that can
bear the weight of this unit sufficiently. Insufficient strength leads to
injury due to falling of the unit.
If refrigerant gas escapes during installation, ventilate the affected
area. If the refrigerant gas comes into contact with sparks or naked
flames, it will cause toxic gases to be generated.
Carry out predetermined installation work in preparation for strong
wind such as typhoon, earthquake. Imperfection in installation
work may lead to accidents arisen from overturn, etc.
Once installation work is completed, check that there are no refrig-
erant gas in the room that can come into contact with sparks or
flames from a fan heater, stove or kitchen range, which will cause
toxic gases to be generated.
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