Thank you for purchasing this product unit.
Carefully read this operation manual to ensure
proper operation.
After reading the manual, file it away for future
reference.
Furthermore, make certain that this operation
manual is handed to a new user when he/she takes
over the operation.
As this operation manual is dedicated for the indoor
unit, refer to also the operation manuals attached to
the outdoor unit and the remote controller.
the appliance. Cleaning and user
maintenance shall only be done by
persons described in manual.
The appliance is not intended for use by
unattended young children or persons who are
incompetent to operate air conditioners.
It may result in injury or electric shocks.
• Thismanualclassiestheprecautionsinto
WARNINGS and CAUTIONS. Be sure to follow
all the precautions below: They are all important for ensuring safety.
WARNING ..... Indicates a potentially
hazardous situation which,
if not avoided, could result in
death or serious injury.
CAUTION ...... Indicates a potentially
hazardous situation which, if
not avoided, may result in minor
or moderate injury.
It may also be used to alert
against unsafe practices.
• After reading, keep this manual in a convenient place so that you can refer to it whenever necessary. If the equipment is transferred
to a new user, be sure also to hand over the
manual.
1. SAFETY PRECAUTIONS
To gain full advantage of the air conditioner’s
functions and to avoid malfunction due to
mishandling, please read this operation manual
carefully before use.
This product comes under the term “appliances not
accessible to the general public”.
This appliance is intended to be used by
expert or trained users in shops, in light
industry and on farms, or for commercial
use by lay persons.
This appliance can be used by
children aged from 8 years and above
and persons with reduced physical,
sensory or mental capabilities or lack of
experience and knowledge if they have
been given supervision or instruction
concerning use of the appliance in a
safe way and understand the hazards
involved. Children shall not play with
WARNING
When the air conditioner is malfunctioning
(giving off a burning odor, etc.), turn off the
power to the air conditioner and contact your
local dealer.
Continued operation under such circumstances
may result in a failure, electric shocks or a fire.
Consult your local dealer regarding
modification, repair and maintenance of the
air conditioner.
Improper workmanship may result in water
leakage, electric shocks or a fire.
Be sure to use fuses with the correct ampere
reading.
Do not use improper fuses, copper or other
wiring as a substitute, as this may result in
electric shocks, a fire, injury or damage to the air
conditioner.
Consult your local dealer if the air
conditioner submerges owing to a natural
disaster, such as a flood or typhoon.
Do not operate the air conditioner in that case,
or otherwise a malfunction, electric shocks, or a
fire may result.
1 English
Start or stop the air conditioner with the
remote controller. Never use the power
circuit breaker for this purpose.
Otherwise, it may cause a fire or water leakage.
Furthermore, if an automatic restart control is
provided against power failure and the power is
recovered, the fan will rotate suddenly and may
cause injury.
Do not use the air conditioner in the
atmosphere contaminated with oil vapor,
such as cooking oil or machine oil vapor.
Oil vapor may cause crack damage to the air
conditioner, electric shocks, or a fire.
Do not use flammable materials (e.g.,
hairspray or insecticide) near the air
conditioner.
Do not clean the air conditioner with organic
solvents such as paint thinner.
The use of organic solvents may cause crack
damage to the air conditioner, electric shocks, or
a fire.
Do not use the air conditioner in places
with excessive oily smoke, such as cooking
rooms, or in places with flammable gas,
corrosive gas, or metal dust.
Using the air conditioner in such places may
cause a fire or air conditioner failures.
Beware of a fire in case of refrigerant
leakage.
If the air conditioner is not operating correctly,
i.e. not generating cool or warm air, refrigerant
leakage could be the cause. Consult your local
dealer for assistance. The refrigerant used for
the air conditioner is safe and normally does not
leak. However, if the refrigerant leaks and gets
in contact with a naked burner, heater or cooker,
it may generate hazardous compounds. Turn
off the air conditioner and call your local dealer.
Turn on the air conditioner after the qualified
service person makes sure to confirm that the
leakage is repaired.
Do not place objects, including rods, your
fingers, etc., in the air inlet or outlet.
Injury may result due to contact with the air
conditioner’s highspeed fan blades.
Be aware that prolonged, direct exposure
to cool or warm air from the air conditioner,
or to air that is too cool or too warm can
be harmful to your physical condition and
health.
Consult your local dealer about installation
work.
Doing the work yourself may result in water
leakage, electric shocks or a fire.
Contact professional personnel about
attachment of accessories and be sure
to use only accessories specified by the
manufacturer.
If a defect results from your own workmanship,
it may result in water leakage, electric shocks or
a fire.
Consult your local dealer regarding
relocation and reinstallation of the air
conditioner.
Improper installation work may result in leakage,
electric shocks or a fire.
Be sure to earth the air conditioner.
Do not earth the air conditioner to a utility piping,
lightning conductor or telephone earth lead.
Imperfect earthing may result in electric shocks
or a fire.
A high surge current from lightning or other
sources may cause damage to the air
conditioner.
Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may
result in electric shocks or a fire.
Be sure to use a dedicated power supply for
the air conditioner.
The use of any other power supply may cause
heat generation, a fire, or air conditioner failures.
Consult your local dealer regarding what to
do in case of refrigerant leakage.
When the air conditioner is installed in a small
room, it is necessary to take proper measures
so that the amount of any leaked refrigerant
does not exceed the concentration limit in the
event of a leakage. Otherwise, this may lead to
an accident due to oxygen depletion.
Consult your local dealer regarding cleaning
the inside of the air conditioner.
Improper cleaning may cause breakage of
plastic parts, water leakage and other damage
as well as electric shocks.
English 2
CAUTION
Children should be watched so that they do
not play with the indoor unit or its remote
controller.
Accidental operation by a child may result in
injury or electric shocks.
Do not allow a child to mount on the outdoor
unit or avoid placing any object on it.
Falling or tumbling may result in injury.
Do not let children play on or around the
outdoor unit.
If they touch the unit carelessly, injury may be
caused.
Be sure that children, plants or animals
are not exposed directly to airflow from the
indoor unit, as adverse effects may ensue.
Do not place flammable sprays or operate
spray containers near the air conditioner as
this may result in a fire.
Do not wash the air conditioner or the
remote controller with water, as this may
result in electric shocks or fire.
Do not place water containers (flower vases,
etc.) on the indoor unit, as this may result in
electric shocks or a fire.
Do not put flammable containers, such as
spray cans, within 1 m from the air outlet.
The containers may explode because the warm
air from the indoor or outdoor unit will affect
them.
Turn off the power when the air conditioner
is not used for long periods of time.
Otherwise, the air conditioner may get hot or
catch on a fire due to dust accumulation.
Do not place objects in direct proximity of
the outdoor unit and do not let leaves and
other debris accumulate around the unit.
Leaves are a hotbed for small animals which can
enter the unit. Once in the unit, such animals
can cause malfunctions, smoke or a fire when
making contact with electrical parts.
Before cleaning, be sure to stop the air
conditioner operation, turn the power circuit
breaker off.
Otherwise, an electric shocks and injury may
result.
To avoid electric shocks, do not operate with
wet hands.
Never touch the internal parts of the remote
controller.
Touching certain internal parts will cause electric
shocks and damage to the remote controller.
Consult your local dealer about checking and
adjustment of internal parts.
To avoid oxygen deficiency, ensure that the
room is adequately ventilated if equipment
such as a burner is used together with the air
conditioner.
Do not leave the remote controller wherever
there is a risk of wetting.
If water gets into the remote controller there
is a risk of electrical leakage and damage to
electronic components.
Watch your steps at the time of air filter
cleaning or inspection.
High-place work is required, to which utmost
attention must be paid.
If the scaffold is unstable, you may fall or topple
down, thus causing injury.
Do not remove the outdoor unit’s outlet side
grille.
The grille protects against the unit’s high speed
fan, which may cause injury.
To avoid injury, do not touch the air inlet or
aluminum fins of the air conditioner.
Do not place objects that are susceptible
to moisture directly beneath the indoor or
outdoor units.
Under certain conditions, condensation on the
unit or refrigerant piping, air filter dirt or drain
blockage may cause dripping, resulting in fouling
or failure of the object concerned.
Do not place heaters directly below the
indoor unit, as resulting heat can cause
deformation.
Do not place appliances that produce naked
flames in places exposed to the airflow
from the air conditioner as this may impair
combustion of the burner.
Do not block air inlets nor outlets.
Impaired airflow may result in insufficient
performance or trouble.
Do not use the air conditioner for purposes
other than those for which it is intended.
Do not use the air conditioner for cooling
precision instruments, food, plants, animals or
works of art as this may adversely affect the
performance, quality and/or longevity of the
object concerned.
3 English
Do not install the air conditioner at any place
where there is a danger of flammable gas leakage.
In the event of a gas leakage, build-up of gas
near the air conditioner may result in a fire.
Carry out drain piping properly to ensure
complete drainage.
If drain piping is not carried out properly, drain
will not flow out. Then, dirt and debris may be
accumulated in the drain piping and may cause
water leakage. If it occurs, stop the air conditioner
and call your local dealer for assistance.
2. WHAT TO DO BEFORE OPERATION
NOTE
• Contact your local dealer in case of changing the
combination or setting of group control and two
remote controllers control system.
• Please do not change the combination and
settings for the group operation and two remote
controllers control systems by yourself, but be
sure to ask your local dealer.
• Read the operation manual attached to the
remote controller you are using.
When using a wireless remote controller, refer to the
operation manual attached to the wireless remote
controller kit.
If your installation has a customized control
system, ask your local dealer for the operation that
corresponds to your system.
This operation manual is for the following system
with standard control. Before initiating operation,
contact your local dealer for the operation that
corresponds to your system.
Indoor unit
Outdoor unit
Unit with
remote
controller
• Heat pump type
This system provides cooling, heating, automatic,
program dry, and fan operation modes.
• Cooling only type
This system provides COOLING, DRY, and FAN
OPERATION modes.
Unit without remote
controller
(When used as
simultaneous
operation system)
PRECAUTIONS FOR GROUP CONTROL
SYSTEM OR TWO REMOTE CONTROLLERS
CONTROL SYSTEM
This system provides two other control systems
beside individual control (one remote controller
controls one indoor unit) system. Confirm the
following if your unit is one of the following control
system type.
• Group control system
One remote controller controls up to 16 indoor units.
All indoor units are equally set.
• Two remote controllers control system
Two remote controllers control one indoor unit (In
case of group control system, one group of indoor
units).
The unit is individually operated.
Names and functions of parts
a
h
f
e
c
a Drain discharge device (built-in)
b Drain pan inspection window
Remote controller
c
Depending on the system configuration, the
remote controller is not provided.
d Wiring between the indoor and outdoor units
e Air outlet grille (Field supply)
fExhaust duct (Field supply)
g Refrigerant piping
h Drain piping
iModel name (Model name plate)
jAir filter (Optional parts)
k Suction filter chamber (Optional parts)
lSuction duct (Field supply)
m Suction grille (Field supply)
Earth wiring
The wiring passes electricity from the inside
n
unit to the earth to prevent accidental electrical
shock.
o Power supply wiring
b
g
o
d
n
i
k
l
m
j
English 4
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