3
English
BEFORE INSTALLATION
2.
WARNING
Entrust installation to the place of purchase or a qualifi ed
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serviceman. Improper installation could lead to leaks and, in
worse cases, electric shock or fi re.
Use of unspecifi ed parts could lead to the unit falling, leaks
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and, in worse cases, electric shock or fi re.
NOTE
Be sure to read this manual before installing the indoor unit.
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Be sure to mount an air fi lter (part to be procured in the
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fi eld) in the suction air passage in order to prevent water
leaking, etc.
The accessories needed for installation must be retained
in your custody until the installation work is completed.
Do not discard them!
Decide upon a line of transport.
1.
Leave the unit inside its packaging while moving, until
2.
reaching the installation site. Where unpacking is unavoid-
able, use a sling of soft material or protective plates togeth-
er with a rope when lifting, to avoid damage or scratches to
the unit.
Be sure to check the type of R410A refrigerant to be used
before installing the unit.
(Using an incorrect refrigerant will prevent normal opera-
tion of the unit.)
For the installation of an outdoor unit, refer to the installation
manual attached to the outdoor unit.
PRECAUTIONS
2-1
Be sure to instruct customers how to properly operate the
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unit (operating different functions, and adjusting the temper-
ature ) by having them carry out operations themselves
while looking at the operation manual.
Do not install in locations where the air contains high levels
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of salt such as that near the ocean and where voltage
fl uctuates greatly such as that in factories, or in vehicles or
vessels.
ACCESSORIES
2-2
Check the following accessories are included with your unit.
Clamp material (1)
Insulation tube (2)
(2 pcs.)
(2 pcs.)
OPTIONAL ACCESSORIES
2-3
This indoor unit requires one of the operation remote con-
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trols listed below.
Remote controller
Wired type
BRC1D71
Wireless type
BRC4C82
FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE
DURING CONSTRUCTION AND CHECK AFTER
INSTALLATION IS FINISHED.
a. Items to be checked after completion of work
Items to be checked
If not properly done, what is
likely to occur
Check
Are the indoor and outdoor
unit fi xed fi rmly?
The units may drop, vibrate
or make noise.
Is the gas leak test fi nished?
It may result in insuffi cient
cooling.
Is the unit fully insulated?
Condensate may drip.
Does drainage fl ow smoothly? Condensate may drip.
Does the power supply
voltage correspond to that
shown on the name plate?
The unit may malfunction or
the components burn out.
Are wiring and piping
correct?
The unit may malfunction or
the components burn out.
Is the unit safely grounded?
Imcomplete grounding may
result in electric shocks.
Is wiring size according to
specifi cations?
The unit may malfunction or
the components burn out.
Is something blocking the air
outlet or inlet of either the
indoor or outdoor units?
It may result in insuffi cient
cooling.
Are refrigerant piping length
and additional refrigerant
charge noted down?
The refrigerant charge in
the system is not clear.
Also review the “SAFETY CONSIDERATIONS”.
b. Items to be checked at time of delivery
Items to be checked
Check
Did you explain about operations while showing the
operation manual to your customer?
Did you hand the operation manual and warranty over to
your customer?
Did you explain about the way of maintaining and cleaning
local procurements (air fi lter, grille (both air outlet and
suction grille), etc.) to your customer?
Did you hand manuals of local procurements (in case
equipped) over to your customer?
SELECTING INSTALLATION SITE
3.
CAUTION
If you think the humidity inside the ceiling might exceed 86°F
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and RH80%, reinforce the insulation on the unit body.
Use glass wool or polyethylene foam as insulation so that
the thickness is more than 1/2 in. and fi ts inside the ceiling
opening.
Select an installation site where the following condi-
(1)
tions are fulfi lled and that meets with your customer’s
approval.
Where optimum air distribution can be ensured.
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Where nothing blocks air passage.
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Where condensate can be properly drained.
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6/18/2009 2:01:13 PM
