Fujitsu ASYG12LMCE-R Installation Manual

AIR CONDITIONER
Wall Mounted Type
[Original instructions]

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.
Indicates a potentially or imminently hazardous situation
WARNING
which, if not avoided, could result in death or serious injury.
• I nstallation 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 fire. If the product is installed in disregard of the instructions
in this manual, it will void the manufacturer's warranty.
• D o 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 fire.
• I f refrigerant leaks when you are working, ventilate the area. If the leaking refrigerant is
exposed to a direct flame, it may produce a toxic gas.
• I nstallation must be performed in accordance with regulations, codes, or standards for
electrical wiring and equipment in each country, region, or the installation place.
Indicates a potentially hazardous situation that may result in
CAUTION
minor or moderate injury or damage to property.
• R ead carefully all safety information written in this manual before you install or use the
air conditioner.
• I nstall the product by following local codes and regulations in force at the place of
installation, and the instructions provided by the manufacturer.
• T his unit must be installed by qualified personnel with a capacity certificate for handling
refrigerant fluids. Refer to regulation and laws in use on installation place.
• T his 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.
• A lways 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.
• T o protect the persons, earth (ground) the product correctly, and use the power cable
combined with an Earth Leakage Circuit Breaker (ELCB).
• T his product is not explosion proof, and therefore should not be installed in an explo-
sive atmosphere.
• T o 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 minutes or
more before you touch the electrical components.
• T his product contains no user-serviceable parts. Always consult experienced service
technicians for repairing.
• W hen moving or relocating the air conditioner, consult experienced service technicians
for disconnection and reinstallation of the product.
• D o not touch the aluminum fins of heat exchanger built-in the indoor or outdoor unit to
avoid personal injury when you install or maintain the unit.
• D o 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.

2. ABOUT THE PRODUCT

2.1. Precautions for using R410A refrigerant
The basic installation work procedures are the same as conventional refrigerant (R22)
models.
However, pay careful attention to the following points:
For authorized service personnel only.
INSTALLATION MANUAL
Contents
1. SAFETY PRECAUTIONS . ................................................................. 1
2. ABOUT THE PRODUCT.................................................................... 1
3. GENERAL SPECIFICATION ............................................................. 2
4. ELECTRICAL REQUIREMENT ......................................................... 2
5. SELECTING THE MOUNTING POSITION ....................................... 2
6. INSTALLATION WORK ..................................................................... 3
7. ELECTRICAL WIRING ...................................................................... 5
8. FINISHING......................................................................................... 5
9. FRONT PANEL REMOVAL AND INSTALLATION ............................. 6
10. R EMOTE CONTROLLER INSTALLATION . ....................................... 6
11. OPTIONAL KIT INSTALLATION ........................................................ 6
12. FUNCTION SETTING........................................................................ 9
13. TEST RUN . ...................................................................................... 10
14. CUSTOMER GUIDANCE ................................................................ 10
15. ERROR CODES . ..............................................................................11
Since the working pressure is 1.6 times higher than that of conventional refrigerant
(R22) models, some of the piping and installation and service tools are special. (See
the table below.)
Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant
R410A model, always replace the conventional piping and flare nuts with the R410A piping
and flare nuts.
Models that use refrigerant R410A have a different charging port thread diameter to pre-
vent erroneous charging with conventional refrigerant (R22) and for safety. Therefore,
check beforehand. [The charging port thread diameter for R410A is 1/2-20 UNF.]
Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with
refrigerant (R22) models. Also, when storing the piping ,securely seal the opening by
pinching, taping, etc.
When charging the refrigerant, take into account the slight change in the composition of
the gas and liquid phases. And always charge from the liquid phase where refrigerant
composition is stable.
2.2. Special tools for R410A
Tool name
Pressure is high and cannot be measured with a conven-
tional (R22) gauge. To prevent erroneous mixing of other
refrigerants, the diameter of each port has been changed.
Gauge manifold
It is recommended the gauge with seals -0.1 to 5.3 MPa
(-1 to 53 bar) for high pressure.
-0.1 to 3.8 MPa (-1 to 38 bar) for low pressure.
To increase pressure resistance, the hose material and base
Charge hose
size were changed.
A conventional vacuum pump can be used by installing a
Vacuum pump
vacuum pump adapter.
Gas leakage detector Special gas leakage detector for HFC refrigerant R410A.
Copper pipes
It is necessary to use seamless copper pipes and it is desirable that the amount of residual
oil is less than 40 mg/10 m. Do not use copper pipes having a collapsed, deformed or
discolored portion (especially on the interior surface). Otherwise, the expansion value or
capillary tube may become blocked with contaminants.
As an air conditioner using R410A incurs pressure higher than when using R22, it is neces-
sary to choose adequate materials.
Do not use the existing (for R22) piping and flare nuts.
If the existing materials are used, the pressure inside the refrigerant cycle will rise and
cause failure, injury, etc. (Use the special R410A materials.)
When installing and relocating the air conditioner, do not mix gases other than
the specified refrigerant (R410A) to enter the refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to
an abnormally high value and cause failure, injury, etc.
PART No. 9333005225
Contents of change
WARNING
En-1