• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into WARNING and CAUTION.
Be sure to follow all the precautions below: they are all important for ensuring safety.
WARNING
CAUTION .............. Failure to follow any of CAUTION may in some cases result in grave consequences.
...............Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.
• The following safety symbols are used throughout this manual:
Be sure to observe this instruction.Be sure to establish an earth connection.Never attempt.
• After completing installation, test the unit to check for installation errors. Give the user adequate instructions concerning the use
and cleaning of the unit according to the Operation Manual.
WARNING
• Installation should be left to the dealer or another professional.
Improper installation may cause water leakage, electrical shock, or fire.
• Install the air conditioner according to the instructions given in this manual.
Incomplete installation may cause water leakage, electrical shock, or fire.
• Be sure to use the supplied or specified installation parts.
Use of other parts may cause the unit to come to lose, water leakage, electrical shock, or fire.
• Install the air conditioner on a solid base that can support the unit’s weight.
An inadequate base or incomplete installation may cause injury in the event the unit falls off the base.
• Electrical work should be carried out in accordance with the installation manual and the national electrical wiring
rules or code of practice.
Insufficient capacity or incomplete electrical work may cause electrical shock or fire.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.
• For wiring, use a cable long enough to cover the entire distance with no connection.
Do not use an extension cord. Do not put other loads on the power supply, use a dedicated power circuit.
(Failure to do so may cause abnormal heat, electric shock or fire.)
• Use the specified types of wires for electrical connections between the indoor and outdoor units.
Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating or fire.
• After connecting interconnecting and supply wiring be sure to shape the cables so that they do not put undue force
on the electrical covers or panels.
Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock, or fire.
• If any refrigerant has leaked out during the installation work, ventilate the room.
(The refrigerant produces a toxic gas if exposed to flames.)
• After all installation is complete, check to make sure that no refrigerant is leaking out.
(The refrigerant produces a toxic gas if exposed to flames.)
• When installing or relocating the system, be sure to keep the refrigerant circuit free from substances other than the
specified refrigerant (R410A), such as air.
(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise or rupture, resulting in injury.)
• During pump-down, stop the compressor before removing the refrigerant piping.
If the compressor is still running and the stop valve is open during pump-down, air will be sucked in when the refrigerant piping is removed,
causing abnormal pressure in the freezer cycle which will lead to breakage and even injury.
• During installation, attach the refrigerant piping securely before running the compressor.
If the compressor is not attached and the stop valve is open during pump-down, air will be sucked in when the compressor is run, causing
abnormal pressure in the freezer cycle which will lead to breakage and even injury.
• Be sure to establish an earth. Do not earth the unit to a utility pipe, arrester, or telephone earth.
Incomplete earth may cause electrical shock, or 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 fire.
CAUTION
• Do not install the air conditioner in a place where there is danger of exposure to inflammable gas leakage.
If the gas leaks and builds up around the unit, it may catch fire.
• Establish drain piping according to the instructions of this manual.
Inadequate piping may cause flooding.
• Tighten the flare nut according to the specified method such as with a torque wrench.
If the flare nut is tightened too hard, the flare nut may crack after a long time and cause refrigerant leakage.
• Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.
Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around
the unit clean.
■English1
Accessories
Mounting plate
A
Refrigerant charge label
B
*1 The thermistor cable is attached to the indoor unit.
– ,
AK
Outdoor unit
1
1
L
Air-Purifying Filter with
C
bacteriostatic, virustatic function
Wireless remote controller
DJ
Remote controller holder
EK
AAA dry-cell batteries
FL
Choosing a Site
• Before choosing the installation site, obtain user approval.
The indoor unit should be sited in a place where:
• the restrictions on installation specified in the
indoor unit installation drawings are met,
•
both air intake and exhaust have clear paths met,
• the unit is not in the path of direct sunlight,
•
the unit is away from the source of heat or steam,
• there is no source of machine oil vapour (this
may shorten indoor unit life),
• cool (heat) air is circulated throughout the room,
•
the unit is away from electronic ignition type fluorescent lamps (inverter
or rapid start type) as they may shorten the remote control range,
•
the unit is at least 1 metre away from any television or radio
set (unit may cause interference with the picture or sound).
Outdoor unit
The outdoor unit should be sited in a place where:
•
the restrictions on installation specified in the outdoor unit installation diagram are met,
• drain water causes no trouble or problem in particular,
•
both air intake and exhaust have clear paths of air (they should be free of snow in snowy districts),
•
the unit is in a clear path of air but not directly exposed to rain, strong winds, or direct sunlight,
• there is no fear of inflammable gas leakage,
•
the unit is no directly exposed to salt, sulfidized gases, or machine oil vapour (they may shorten outdoor unit life),
• operation noise or hot air flow does not cause trouble to neighbours,
• the unit is at least 3 metres away from any television or radio antenna.
•
Turn on all the fluorescent lamps in the room, if any, and find the site where remote
controller signals are properly received by the indoor unit (within 7 metres).
Indoor unit fixing screw M4 × 12L
G
2
Thermistor cable (8m)*1
H
1
1
2
Operation manual
Installation manual
Drain plug
2
1
1
1
1
Installation Tips
Removing and installing front panel.
1.
• Removal method
1) Place your fingers in the indentations on the main unit (one each on the left
and right sides), and open the panel until it stops.
2)
Continue to open the front panel further while sliding the panel to the right and pulling it
toward you in order to disengage the rotating shaft on the left side. To disengage the rotating
shaft on the right side, slide the panel to the left while pulling it toward you.
• Installation method
Align the tabs of the front panel with the grooves, and push all the way in. Then close
slowly. Push the center of the lower surface of the panel firmly to engage the tabs.
Removing and installing front grille.
2.
¡¡¡
• Removal method
1) Remove front panel to remove the air filter.
2) Remove the screws (2) from the front grille.
3) In front of the {{{ mark of the front grille, there are 3
upper hooks. Lightly pull the front grille toward you with one
hand, and push down on the hooks with the fingers of your other hand.
Upper hook
mark area
(3 locations)
When there is no work space because the unit is close to ceiling
CAUTION
Be sure to wear protection gloves.
Push the rotating
shaft of the front
panel into the groove.
Rotating shaft
Lightly pull the
front grille
toward you with
one hand, and
push down on
the hooks with
the fingers of
your other hand.
(3 locations)
Push
down.
Indentations on
the main unit
Upper hook
Upper hook
Place both hands under the center of the front grille, and while pushing up, pull it toward you.
1) Push up.
• Installation method
1) Install the front grille and firmly engage the upper hooks (3 locations).
2) Install 2screws of the front grille.
3) Install the air filter and then mount the front panel.
Air-Purifying Filter with bacteriostatic,
virustatic function (2)
Air-Purifying Filter
with bacteriostatic,
virustatic function
Filter frame
30mm or more from ceiling
M4 × 12L
Opening service lid
Service lid is opening/closing type.
Opening method
1) Remove the service lid screws.
2) Pull out the service lid diagonally
3) Pull down.
Air filter
How to attach the indoor unit.
Hook the claws of the bottom frame
to the mounting plate.
If the claws are difficult to hook,
remove the front grille.
How to remove the indoor unit.
Push up the marked area (at the
lower part of the front grille) to
release the claws. If it is difficult to
release, remove the front grille.
Service lid
down in the direction of the arrow.
A Mounting
plate
Clip
Front grille
Cut thermal insulation
Caulk
pipe hole
gap
with putty.
pipe to an appropriate
length and wrap it with
tape, making sure that no
gap is left in the insulation
pipe’s cut line.
Model
Min. allowable length
Max. allowable length
Additional charge of refrigerant
Max. allowable length without
additional charge
Max. allowable height
Liquid pipe
Be sure to add the proper amount of additional refrigerant.
*
Failure to do so may result in reduced perfomance.
Bottom frame
Wrap the insulation pipe with
the finishing tape from bottom
to top.
Gas pipe
Mark (rear side)
2535
3m
15m
20g/m
10m
10m
O.D. 9.5mm O.D. 12.7mm
O.D. 6.4mm
Ta b
D
Wireless
remote
controller
E
Remote
controller
holder
Screws
(Field supply: M3 × 20L)
Before screwing
the remote
controller holder
to the wall, make
sure that control
signals are
properly received
by indoor unit.
(Foot bolt-hole centres)
In sites with poor drainage, use block
bases for outdoor unit. Adjust foot height
until the unit is leveled. Otherwise, water
leakage or pooling of water may occur.
574
105.5
(From unit’s side)
unit: mm
250mm from wall
311
Foot bolt-hole
centres
Allow space for piping
and electrical servicing.
Where there is a danger of the unit
falling, use foot bolts, or wires.
Stop valve cover
How to remove the stop
valve cover.
Remove the screw on the
stop valve cover.
Slide the lid downward
to remove it.
How to attach the stop
valve cover.
Insert the upper part of
the stop valve cover into the
outdoor unit to install.
Tighten the screws.
■English3
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