3
English
2.
BEFORE INSTALLATION
•
When moving the unit while removing it from the carton
box, be sure to lift it by holding on to the four lifting lugs
without exerting any pressure on other parts, especially,
the refrigerant piping, drain piping, and other resin parts.
• Be sure to check the type of R410A refrigerant to be used
before installing the unit. (Using an incorrect refrigerant will
prevent normal operation of the unit.)
• 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.
• Leave the unit inside its packaging while moving, until reach-
ing the installation site. Where unpacking is unavoidable, use
a sling of soft material or protective plates together with a
rope when lifting, to avoid damage or scratches to the unit.
• When moving the unit at or affter opening, hold the unit by the
hanger brackets (× 4). Do not apply force to the refrigerant
piping, drain piping or plastic parts.
• For the installation of an outdoor unit, refer to the installation
manual attached to the outdoor unit.
• Do not install or operate the unit in rooms mentioned below.
•
Laden with mineral oil, or filled with oil vapor or spray
like in kitchens. (Plastic parts may deteriorate which
could eventually cause the unit to fall out of place, or
could lead to leaks.)
•
Where corrosive gas like sulfurous gas exists. (Cop-
per tubing and brazed spots may corrode which could
eventually lead to refrigerant leaks.)
•
Where exposed to combustible gases and where vol-
atile flammable gas like thinner or gasoline is used.
(Gas in the vicinity of the unit could ignite.)
•
Where machines can generate electromagnetic
waves. (Control system may malfunction.)
•
Where the air contains high levels of salt such as that
near the ocean and where voltage fluctuates greatly
such as that in factories.
Also in vehicles or vessels.
• This unit, both indoor and outdoor, is suitable for installation in a
commercial and light industrial environment.
If installed as a household appliance it could cause electro-
magnetic interference.
2-1
PRECAUTIONS
• Be sure to read this manual before installing the indoor unit.
• Entrust installation to the place of purchase or a qualified ser-
viceman. Improper installation could lead to leaks and, in
worse cases, electric shock of fire.
• Use only parts provided with the unit or parts satisfying
required specifications. Unspecified parts could cause the
unit to fall out of place, or could lead to leaks and, in worse
cases, electric shock or fire.
• Be sure to mount an air filter (part to be procured in the field)
in the suction air passage in order to prevent water leaking,
etc.
2-2
ACCESSORIES
Check the following accessories are included with your
unit.
2-3
OPTIONAL ACCESSORIES
• A wired remote controller is necessary for this unit sepa-
rately.
NOTE
• If you wish to use a remote controller that is different from the
above, select a suitable remote controller after consulting
catalogs and technical materials.
FOR THE FOLLOWING ITEMS, TAKE SPECIAL
CARE DURING CONSTRUCTION AND CHECK
AFTER INSTALLATION IS FINISHED.
a. Items to be checked after completion of work
Name
Attached
piping (1)
Insulation
tube (2)
(Other)
(3) Operation manual
(4) Installation manual
(5) Screws for flange connec-
tion (M5) (48 pcs.)
(6) Insulation material (for
hanger) (2 pcs.)
(7) Washers (8 pcs.)
(8) Clamps (6 pcs.)
(9) Hexagon head bolt for
pipe frange (M10) (2 pcs.)
(10) Spring washer for pipe
frange (M10) (2 pcs.)
Quantity
1 set
2 pcs.
Shape
Items to be checked
If not properly done, what is
likely to occur.
Check
Are the indoor and outdoor unit
fixed firmly?
The units may drop, vibrate or
make noise.
Is the gas leak test finished?
It may result in insufficient cool-
ing.
Is the unit fully insulated?
Condensate water may drip.
Dose drainage flow smoothly?
Condensate water may drip.
Dose 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?
Dangerous at electric leakage.
Is wiring size according to
specifications?
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 insufficient cool-
ing.
Are refrigerant piping length
and additional refrigerant
charge noted down?
The refrigerant charge in the
system is not clear.
01_EN_3P086156-13Y.fm Page 3 Wednesday, September 16, 2009 2:22 PM
