AirStage ARUL18RLAV Panduan Instalasi - Halaman 3

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Juga untuk AirStage ARUL18RLAV: Panduan Pengoperasian (8 halaman)

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2. ABOUT THE UNIT

2.1. Precautions for using R410A refrigerant

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

tion 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.

2.2. Special tool for R410A

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

that have been manufactured speciﬁ cally 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

Pressure is huge and cannot be measured with a

conventional (R22) gauge. To prevent erroneous

mixing of other refrigerants, the diameter of each port

has been changed.

Gauge manifold

It is recommended to use a gauge manifold with a

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

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

to 551 psi (–0.1 to 3.8 MPa).

To increase pressure resistance, the hose material

Charging hose

and base size were changed.

A conventional (R22) vacuum pump can be used by

installing a vacuum pump adapter.

Vacuum pump

Be sure that the pump oil does not back ﬂ ow 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.

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 to fall,

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.

Do not discard any accessories needed for installation until the installation work has been

completed.

Name and Shape

Operating Manual

Installation Manual

WARNING

Changes

WARNING

Q'ty

Application

(This book)

Name and Shape

Installation template

Washer

Coupler heat insulation

(Large)

Coupler heat insulation

(Small)

Binder

Medium

Filter (Small)

Filter (Big)

Drain hose

Hose band

Drain hose insulation B

Grommet edging

Q'ty

Application

For positioning the indoor unit

For installing indoor unit

For indoor side pipe joint (Large pipe)

For indoor side pipe joint (Small pipe)

For power supply and transmission and

remote controller cable binding.

For fixing the coupler heat insulation.

Large

(AR7/9/

12/14)

(AR18)

For installing drain pipe

Φ 3/4 in. (19 mm) [I.D.],

Φ 1-1/16 in. (27 mm) [O.D.]

For installing drain hose

Insulates the drain hose

For wiring connecting port.

(Not use for U.S.A. and Canada)

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