Please read these “SAFETY PRECAUTIONS” carefully before installing air conditioning equipment and be
sure to install it correctly.
After completing installation, conduct a trial operation to check for faults and explain to the customer how to
operate the air conditioner and take care of it with the aid of the operation manual. Ask the customer to store
the installation manual along with the operation manual for future reference.
This air conditioner comes under the term “appliances not accessible to the general public”.
Meaning of WARNING and CAUTION notices.
WARNING
CAUTION ........... Failure to observe these instructions properly may result in property damage or
WARNING
• Ask your dealer or qualified personnel to carry out installation work.
Do not attempt to install the air conditioner yourself. Improper installation may result in water leakage,
electric shocks or fire.
• Install the air conditioner in accordance with the instructions in this installation manual.
Improper installation may result in water leakage, electric shocks or fire.
• Be sure to use only the specified accessories and parts for installation work.
Failure to use the specified parts may result in the unit falling, water leakage, electric shocks or fire.
• Install the air conditioner on a foundation strong enough to withstand the weight of the unit.
A foundation of insufficient strength may result in the equipment falling and causing injury.
• Carry out the specified installation work after taking into account strong winds, typhoons or earthquakes.
Failure to do so during installation work may result in the unit falling and causing accidents.
• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried
out by qualified personnel according to local laws and regulations and this installation manual.
An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.
........... Failure to follow these instructions properly may result in personal injury or loss of life.
personal injury, which may be serious depending on the circumstances.
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•
Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal
connections or wires.
Improper connections or securing of wires may result in abnormal heat build-up or fire.
• When wiring the power supply and connecting the wiring between the indoor and outdoor units, position the
wires so that the terminal box lid can be securely fastened.
Improper positioning of the terminal box lid may result in electric shocks, fire or overheating terminals.
• If refrigerant gas leaks during installation, ventilate the area immediately.
Toxic gas may be produced if the refrigerant comes into contact with fire.
• After completing installation, check for refrigerant gas leakage.
Toxic gas may be produced if the refrigerant gas leaks into the room and comes into contact with a source
of fire, such as a fan heater, stove or cooker.
• Be sure to switch off the unit before touching any electrical parts.
• Do not directly touch refrigerant that has leaked from refrigerant pipes or other areas, as there is a danger
of frostbite.
• Be sure to earth the air conditioner.
Do not earth the unit to a utility pipe, lightning conductor or telephone earth lead.
Imperfect earthing may result in electric shocks 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
• While following the instructions in this installation manual, install drain piping to ensure proper drainage and
insulate piping to prevent condensation.
Improper drain piping may result in indoor water leakage and property damage.
• Install the indoor and outdoor units, power cord and connecting wires at least 1 meter away from televisions
or radios to prevent picture interference and noise.
(Depending on the incoming signal strength, a distance of 1 meter may not be sufficient to eliminate noise.)
• Remote controller (wireless kit) transmitting distance can be shorter than expected in rooms with electronic
fluorescent lamps (inverter or rapid start types).
Install the indoor unit as far away from fluorescent lamps as possible.
• Do not install the air conditioner in the following locations:
1. Where there is a high concentration of mineral oil spray or vapour (e.g. a kitchen).
Plastic parts will deteriorate, parts may fall off and water leakage could result.
2. Where corrosive gas, such as sulphurous acid gas, is produced.
Corroding of copper pipes or soldered parts may result in refrigerant leakage.
3. Near machinery emitting electromagnetic radiation.
Electromagnetic radiation may disturb the operation of the control system and result in a malfunction of
the unit.
4. Where flammable gas may leak, where there is carbon fibre or ignitable dust suspensions in the air, or
where volatile flammables such as paint thinner or gasoline are handled.
Operating the unit in such conditions may result in fire.
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2.BEFORE INSTALLATION
• 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.
• When transporting by hanging the unit, use a sling of soft material as shown below.
(1) Horizontal hanging(2) Vertical hanging
Sling
*Be sure that the sling
does not slide in the
direction of the arrow.
• When moving the unit at or after opening, do not apply force to plastic parts.
• When selecting installation site, refer to the paper pattern (part of packaging material).
• For the installation of an outdoor unit, refer to the installation manual attached to the outdoor unit.
Sling
Apply cloth or corrugated
fibreboard so that the air
discharge grille and air inlet
grille are not damaged
1. ACCESSORIES
Check the following accessories are included with the unit.
NameBracket for installation
Quantity1 set2 pcs.1 pc.1 each
(1)
Shape
(Attached to the top
Control
Name
Quantity1 pc.1 pc.5 pcs.1 pc.
Shape
panel patch
plate
(6) (7) (8) (9)
panel)
Remote
controller lid
Through hole
protecting rubber
(2) (3) (4) For gas pipe
ClampInstallation pattern
BushInsulation for fitting
(5) For liquid pipe
(Other)
(10) Operation
manual
(11) Installation
manual
(12) Screws
(M5 × 12, 2 pcs.)
(Part of packing material)
2. OPTIONAL ACCESSARIES
• When the indoor unit is to be controlled by two remote controllers (refer to “FIELD SETTING”), install
them on an adequate place, referring to the related technical information.
(As for the installation procedure, follow the instruction in “Remote controller installation procedure”
attached to the remote controller.)
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FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUCTION AND
CHECK AFTER INSTALLATION IS FINISHED.
1. Items to be checked after completion of work
Items to be checkedIf not properly done, what is likely to occurCheck
Are the indoor and outdoor unit fixed
firmly?
Is the gas leak test finished?It may result in insufficient cooling.
Is the unit fully insulated?Condensate water may drip.
Does drainage flow smoothly?Condensate water may drip.
Does the power supply voltage
correspond to that shown on the name
plate?
Are wiring and piping correct?
Is the unit safely grounded?Dangerous at electric leakage.
Is wiring size according to specifications?
Is something blocking the air outlet or inlet
of either the indoor or outdoor units?
Are refrigerant piping length and
additional refrigerant charge noted down?
The unit may drop, vibrate or make noise.
The unit may malfunction or the components burn out.
The unit may malfunction or the components burn out.
The unit may malfunction or the components burn out.
It may result in insufficient cooling.
The refrigerant charge in the system is not clear.
2. Items to be checked at time of delivery *Also review the “SAFETY PRECAUTIONS”
Items to be checkedCheck
Did you explain about operations while showing the instruction manual to your customer?
Did you hand the instruction manual over to your customer?
Points for explanation about operations
The items with WARNING and CAUTION marks in the instruction manual are the items
pertaining to possibilities for bodily injury and material damage in addition to the general usage of
the product. Accordingly, it is necessary that you make a full explanation about the described
contents and also ask your customers to read the instruction manual.
3. NOTE TO THE INSTALLER
Be sure to instruct customers how to properly operate the unit (especially operating different functions,
and adjusting the temperature) by having them carry out operations themselves while looking at the
manual.
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3.SELECTING INSTALLATION SITE
Select an installation site where the following conditions are satisfied after obtaining your customer’s
approval.
• Where optimum air distribution can be ensured.
• Where nothing blocks the air inlet and outlet, and
where sufficient clearance for maintenance and
service can be ensured.
• Where condensate can be properly drained.
• Where the floor is strong enough to bear the indoor
unit weight.
• Make sure that the floor is not remarkably tilted.
• Where there is no risk of flammable gas leakage.
• Where piping between indoor and outdoor units is
possible within the allowable limit. (Refer to the
installation manual for the outdoor unit.)
• Keep indoor unit, outdoor unit, power supply wiring
and transmission wiring at least 1 meter away from
televisions and radio receivers. This is to prevent
image interference and noise in those electrical
appliances.
(Noise may be generated depending on the
conditions under which the electric wave is generated, even if 1 meter is kept.)
50mm
or more
50mm
or more
4.INDOOR UNIT INSTALLATION
As for the parts to be used for installation work, be sure to use the provided accessories and specified parts
designated by our company.
〈Fixing procedure〉
• Fix the indoor unit by using embedded bolt, etc. to prevent falling down of the vertically-long shaped unit.
1. Detach the air intake grille.
Remove the screws (R & L, total 2) locking the grille stopper. Then, (1) lean the grille forward you, and
(2) lift upward and out.
M4 × 12
Screw
Air intake
grille
Front panel
(2)
(1)
Grille
stopper
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2. In case of normal installation site.
Loosen the fixed screw and remove the bracket for installation (1) tentatively attached to the top panel.
Fix the bracket with the attached screws (12) to the top panel as shown in the figure. Then fix the indoor
unit to the wall surface with wood screws (field supply).
Fixing screw
Screw (12)
Bracket for
installation (1)
(attached)
Bracket for
installation (1)
(attached)
330
2-7 × 15 slot
(For locking with
wood screw:
field supply)
18
3. In the case of earthquake endurance installation site.
Perform the fixing procedure above and also fix the bottom frame. Fix the indoor unit to the floor with
anchor bolts (to be locally procured) using fixing holes (×4) on the bottom frame.
• Use the locations indicated on the installation pattern (9) (part of packing material).
4 - φ14 hole, Depth: 30
(For locking with bolt)
260
130
57
(79)
144
(202)
Front
Fixing hole (× 4)
Bottom frame
• Dimensions in ( ) for 100 - 125 models
• Unit [mm]
5.REFRIGERANT PIPING WORK
〈For refrigerant piping of outdoor units, see the installation manual attached to the outdoor unit.〉
〈Execute heat insulation work completely on both sides of the gas piping and the liquid piping.
Otherwise, a water leakage can result sometimes.〉
(When using a heat pump, the temperature of the gas piping can reach up to approximately 120°C, so use
insulation which is sufficiently resistant.)
〈Also, in cases where the temperature and humidity of the refrigerant piping sections might exceed
30°C or RH80%, reinforce the refrigerant insulation. (20mm or thicker) Condensation may form on the
surface of the insulating material.〉
〈Before refrigerant piping work, check which type of refrigerant is used. Proper operation is not
possible if the types of refrigerant are not the same.〉
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