Fujitsu ASTG12CMCB Installation Manual Download Page 1

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En-1

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.

WARNING

Indicates a potentially or imminently hazardous situation
which, if not avoided, could result in death or serious injury.

CAUTION

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

WARNING

• 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

before the work is completed can cause serious accidents such as an electric shock
or a

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 installaton place.

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

recommended by the manufacturer.

• 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 of safety information written in this manual before you install or use

the air conditioner.

• Install the unit by following local codes and regulations in force at the place of installa-

tion, and the instructions provided by the manufacturer.

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

alone or be installed with non-authorized device 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 unit.

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

combined with an Earth Leakage Circuit Breaker (ELCB).

• The units are not explosion proof, and therefore should not be installed in explosive

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 unit contains no user-serviceable parts. Always consult experienced service

technicians for repairing.

CAUTION

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

for disconnection and reinstallation of the unit.

• Do not place any other electrical products or household belongings under indoor unit

or outdoor unit. Condensation dripping from the unit might get them wet, and may
cause damage or malfunction of your property.

• Be careful not to scratch the air conditioner when handling it.
• After installation, explain correct operation to the customer, using the operating manual.

Precautions for using R32 refrigerant

The basic installation work procedures are the same as conventional refrigerant (R410A,
R22) models.
However, pay careful attention to the following points:

Since the working pressure is 1.6 times higher than that of refrigerant R22 models,
some of the piping and installation and service tools are special. (See “2.1. Special
tools for R32 (R410A)”.)
Especially, when replacing a refrigerant R22 model with a new refrigerant R32 model,
always replace the conventional piping and

are nuts with the R32 and R410A piping and

are nuts on the outdoor unit side.

For R32 and R410A, the same

are nut on the outdoor unit side and pipe can be used.

Models that use refrigerant R32 and R410A have a different charging port thread diam-
eter to prevent erroneous charging with refrigerant R22 and for safety. Therefore, check
beforehand. [The charging port thread diameter for R32 and R410A is 1/2-20 UNF.]

Be more careful than R22 so that foreign matter (oil, water, etc.) does not enter the
piping. Also, when storing the piping ,securely seal the opening by pinching, taping, etc.
(Handling of R32 is similar to R410A.)

CAUTION

1-Installation (Space)

•  That the installation of pipe-work shall be kept to a minimum.
•  That pipe-work shall be protected from physical damage.
•  That compliance with national gas regulations shall be observed.
•  That mechanical connections shall be accessible for maintenance purposes.
•  In cases that require mechanical ventilation, ventilation openings shall be kept clear

of obstruction.

• When disposing of the product is used, be based on national regulations, properly

processed.

2-Servicing
2-1 Service personnel

• Any person who is involved with working on or breaking into a refrigerant circuit

should hold a current valid certi

cate from an industry-accredited assessment

authority, which authorises their competence to handle refrigerants safely in accor-
dance with an industry recognised assessment speci

cation.

• Servicing shall only be performed as recommended by the equipment manufacturer.

Maintenance and repair requiring the assistance of other skilled personnel shall be
carried out under the supervision of the person competent in the use of

ammable

refrigerants.

• Servicing shall be performed only as recommended by the manufacturer.

AIR CONDITIONER
Wall Mounted Type

INSTALLATION MANUAL

Contents

1. SAFETY

PRECAUTIONS

.................................................................. 1

2. ABOUT

THIS

PRODUCT................................................................... 3