AirStage ABUA24RLAV Manual de instalación - Página 3

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• 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.

Request your dealer or a professional installer to install the indoor unit in accordance

with this Installation Manual. An improperly installed unit can cause serious accidents

such as water leakage, electric shock, or ﬁ re. If the indoor unit is installed in disregard

of the instructions in the Installation 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 electric shock or

ﬁ re.

If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant

comes in contact with a ﬂ ame, it produces a toxic gas.

Installation work must be performed in accordance with national wiring standards by

authorized personnel only.

Except for EMERGENCY, never turn off main as well as sub breaker of the indoor

units during operation. It will cause compressor failure as well as water leakage.

First, stop the indoor unit by operating the controller, converter or external input device

and then cut the breaker.

Make sure to operate through the controller, converter or external input device.

When the breaker is designed, locate it at a place where the users cannot start and

stop in the daily work.

2. ABOUT THE UNIT

2.1. Precautions for using R410A refrigerant

Do not introduce any substance other than the prescribed refrigerant into the

refrigeration cycle. If air enters the refrigeration cycle, the pressure in the refrigeration

cycle will become abnormally high and cause the piping to rupture.

If there is a refrigerant leak, make sure that it does not exceed the concentration limit.

If a refrigerant leak exceeds the concentration limit, it can lead to accidents such as

oxygen starvation.

Do not touch refrigerant that has leaked from the refrigerant pipe connections or other

area. Touching the refrigerant directly can cause frostbite.

If a refrigerant leak occurs during operation, immediately vacate the premises and

thoroughly ventilate the area. If the refrigerant comes in contact with a ﬂ ame, it

produces a toxic gas.

] 1

2.2. Special tool for R410A

To install a unit that uses R410A refrigerant, use dedicated tools and piping materials

that have been manufactured specifically for R410A use. Because the pressure

of R410A refrigerant is approximately 1.6 times higher than the R22, failure to

use dedicated piping material or improper installation can cause rupture or injury.

Furthermore, it can cause serious accidents such as water leakage, electric shock, or

ﬁ re.

Tool name

The pressure in the refrigerant system is extremely high

and cannot be measured with a conventional (R22)

gauge. To prevent erroneous mixing of other refriger-

ants, the diameter of each port has been changed. It

Gauge manifold

is recommended to use a gauge manifold with a high

pressure display range of 30in.Hg to 768 psi (–0.1 to

5.3 MPa) and a low pressure display range of 30in.Hg to

551 psi (–0.1 to 3.8 MPa).

To increase pressure resistance, the hose material and

base size were changed.

Charging hose

(The charging port thread diameter for R410A is 1/2 UNF

20 threads per inch.)

A conventional (R22) vacuum pump can be used by install-

ing a vacuum pump adapter.

Vacuum pump

Be sure that the pump oil does not back flow into the

system. Use one capable for vacuum suction of 5 Torr,

–755 mmHg (–100.7 kPa).

Gas leakage detector

Special gas leakage detector for R410A refrigerant.

WARNING

Changes

] 1

2.3. Accessories

For installation purposes, be sure to use the parts supplied by the manufacturer or

other prescribed parts.

The use of non-prescribed parts can cause serious accidents such as the unit falling,

water leakage, electric shock, or ﬁ re.

• The following installation parts are furnished. Use them as required.

• Keep the Installation Manual in a safe place and do not discard any other accessories

until the installation work has been completed.

Name and Shape

Operating Manual

Installation Manual

Cover plate (Left)

Cover plate (Right)

Tapping screw

(M4

10mm)

Installation

template

Bracket (Left)

Bracket (Right)

Special nut

Wall bracket

Tapping screw (M4

20mm)

Coupler heat insulation

Binder

WARNING

Q'ty

Application

(This book)

For positioning the indoor unit

For under ceiling type

For suspending

the indoor unit from ceiling

For suspending the indoor unit on

the wall

For ﬁ xing the wall bracket

For indoor side pipe joint

Large 4

For ﬁ xing the coupler heat insulation

Medium

For power supply, transmission and

remote controller cable binding

En-2