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CAUTION

Indicates a potentially hazardous situation that may result in
minor or moderate injury or damage to property.

WARNING

• The appliance shall be installed, operated and stored in a room with a

oor area larger

than X m

Amount of refrigerant charge

M (kg)

Minimum room area

X (m

)

≤

1.22

1.22 < M

≤

1.23

1.45

1.23 < M

≤

1.50

2.15

1.50 < M

≤

1.75

2.92

1.75 < M

≤

2.0

3.82

2.0 < M

≤

2.5

5.96

2.5 < M

≤

3.0

8.59

3.0 < M

≤

3.5

11.68

3.5 < M

≤

4.0

15.26

(IEC

60335-2-40)

• Installation of this product must be done by experienced service technicians or profes-

sional installers only in accordance with this manual. Installation by non-professional
or improper installation of the product might cause serious accidents such as injury,
water leakage, electric shock, or

re. If the product is installed in disregard of the

instructions in this manual, it will void the manufacturer’s warranty.

• Do not turn on the power until all work has been completed. Turning on the power be-

fore the work is completed can cause serious accidents such as electric shock or

re.

• If refrigerant leaks when you are working, ventilate the area. If the leaking refrigerant

is exposed to a direct

ame, it may produce a toxic gas.

• Installation must be performed in accordance with regulations, codes, or standards for

electrical wiring and equipment in each country, region, or the installation place.

• Do not use means to accelerate the defrosting process or to clean, other than those

recommended by the manufacturer.

• This appliance is not intended for use by persons (including children) with reduced

physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety. Children should be supervised to ensure that they
do not play with the appliance.

• To avoid danger of suffocation, keep the plastic bag or thin

lm used as the packaging

material away from young children.

• The appliance shall be stored in a room without continuously operating ignition

sources (for example: open

ames, an operating gas appliance or an operating

electric heater).

• Do not pierce or burn.
• Be aware that refrigerants may not contain an odour.

CAUTION

• Read carefully all safety information written in this manual before you install or use the

air conditioner.

• Install the product by following local codes and regulations in force at the place of

installation, and the instructions provided by the manufacturer.

• This product is part of a set constituting an air conditioner. The product must not be

installed alone or be installed with a device not authorized by the manufacturer.

• Always use a separate power supply line protected by a circuit breaker operating on

all wires with a distance between contact of 3 mm for this product.

• To protect the persons, earth (ground) the product correctly, and use the power cable

combined with an Earth Leakage Circuit Breaker (ELCB).

• This product is not explosion proof, and therefore should not be installed in an explo-

sive atmosphere.

• To avoid getting an electric shock, never touch the electrical components soon after

the power supply has been turned off. After turning off the power, always wait 5 min-
utes or more before you touch the electrical components.

• This product contains no user-serviceable parts. Always consult experienced service

technicians for repairing.

• When moving or relocating the air conditioner, consult experienced service technicians

for disconnection and reinstallation of the product.

• Do not touch the aluminum

ns of heat exchanger built-in the indoor or outdoor unit to

avoid personal injury when you install or maintain the unit.

• Do not place any other electrical products or household belongings under the product.

Condensation dripping from the product might get them wet, and may cause damage
or malfunction to the property.

• Be careful not to scratch the air conditioner when handling it.

AIR CONDITIONER

Compact cassette type

Contents

1. SAFETY PRECAUTIONS ...................................................................... 1

1.1. Precautions for using R32 refrigerant ............................................. 2

2. PRODUCT SPECIFICATION ................................................................ 4

2.1. Installation tools .............................................................................. 4
2.2. Accessories .................................................................................... 4
2.3. Cassette grille accessories ............................................................. 4
2.4. Pipe requirement ............................................................................ 5
2.5. Electrical requirement ..................................................................... 5
2.6. Optional parts ................................................................................. 5

3. INSTALLATION WORK ......................................................................... 5

3.1. Selecting an installation location .................................................... 5
3.2. Installation dimensions ................................................................... 5
3.3. Installing the unit ............................................................................. 6
3.4. Drain installation ............................................................................. 6
3.5. Pipe installation .............................................................................. 7
3.6. Electrical wiring ............................................................................... 8
3.7. Remote controller setting ...............................................................11

4. CASSETTE GRILLE INSTALLATION ...................................................11

4.1. Remove the intake grille ................................................................11
4.2. Installing the panel to indoor unit ...................................................11
4.3. Attach the intake grille .................................................................. 12

5. OPTIONAL INSTALLATION WORK .................................................... 12

5.1. Optional kit installation .................................................................. 12
5.2. External input and output .............................................................. 12
5.3. Remote sensor (Optional parts) ................................................... 13
5.4. Other optional parts ...................................................................... 13
5.5. Optional parts cable binding ......................................................... 13

6. REMOTE CONTROL INSTALLATION ................................................. 14

6.1. Group control ................................................................................ 14
6.2. Multiple remote control ................................................................. 15
6.3. Simultaneous multi-system operation ........................................... 15

7. FUNCTION SETTING ......................................................................... 16

7.1. Function details ............................................................................ 16

8. CHECK LIST ....................................................................................... 18

9. TEST RUN ........................................................................................... 18

9.1. Check items .................................................................................. 18
9.2. Operation method ......................................................................... 18

10. FINISHING ........................................................................................ 18

10.1. Installing heat insulation ............................................................. 18

11. CUSTOMER GUIDANCE .................................................................. 18

12. ERROR CODES ................................................................................ 18

NOTES:

This manual describes how to install the air conditioner described above.

Handling and installation shall only be done by professionals as outlined in this
manual.

1. SAFETY PRECAUTIONS

• Be sure to read this manual thoroughly before installation.
• The warnings and precautions indicated in this manual contain important information

pertaining to your safety. Be sure to observe them.

• Hand this manual, together with the operating manual, to the customer. Request the

customer to keep them on hand for future use, such as for relocating or repairing the unit.