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2.3. For authorized service personnel only

WARNING

• For the air conditioner to operate satisfactorily, install it as outlined in this installation

manual.

• Connect the indoor unit and outdoor unit with the air conditioner piping and cables

available from your local distributor. This installation manual describes the correct
connections using the installation set available from your local distributor.

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

authorized personnel only.

• Do not turn on the power until all installation work is complete.

CAUTION

This installation manual describes how to install the indoor unit only.
To install the outdoor unit, refer to the installation manual included with the outdoor unit.

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

2.4. Accessories

The following installation accessories are supplied. Use them as required.

Name and Shape

Q’ty

Name and Shape

Q’ty

Operating Manual

Cloth tape

Installation Manual

(This manual)

Seal A

It is used when the diameter of
gas pipe is Ø12.70 or more.
It is necessary when using AS14.

Wall hook bracket

Tapping screw

(M4 × 25 mm)

Remote controller

Tapping screw

(M3 × 12 mm)

Battery

Air cleaning filter

Remote controller holder

Filter holders

The following items are necessary to install this air conditioner. (The items are not includ-
ed with the air conditioner and must be purchased separately.)

Name Q’ty

Connection pipe assembly

Wall cap

Connection cable (4-conductor)

Saddle

1 set

Wall pipe

Drain hose

Decorative tape

Tapping screws

1 set

Vinyl tape

Sealant

2.5. Optional parts

Refer to each installation manual for the method of installing optional parts.

Parts name

Model No.

Application

Wired Remote Controller *

UTY-RVN

For air conditioner operation

Wired Remote Controller *

UTY-RNN

For air conditioner operation

Simple Remote Controller *

UTY-RSN

For air conditioner operation

External connect kit *

UTY-XWZXZ5

For control input/output port

Communication kit

UTY-XCBXZ2

For the installation of optional parts

* Optional communication kit is necessary for the installation.

3. GENERAL SPECIFICATION

This INSTALLATION MANUAL brie

y outlines where and how to install the air conditioning system.

Please read over the entire set of instructions for the indoor and outdoor units and make sure all
accessory parts listed are with the system before beginning.

3.1. Type of copper pipe and insulation material

CAUTION

Refer to the installation manual for the outdoor unit for description of allowable pipe
length and height difference.

Capacity of indoor unit

Gas pipe size (thickness)

[mm]

Liquid pipe size (thickness)

[mm]

9, 12

9.52 (0.8)

6.35 (0.8)

Ø 12.70 (0.8)

Ø 6.35 (0.8)

CAUTION

• Install heat insulation around both the gas and liquid pipes. Failure to do so may

cause water leaks.

• Use heat insulation with heat resistance above 120 °C. Reverse cycle model only)
• In addition, if the humidity level at the installation location of the refrigerant piping is

expected to exceed 70%, install heat insulation around the refrigerant piping. If the
expected humidity level is 70-80%, use heat insulation that is 15 mm or thicker and if
the expected humidity exceeds 80%, use heat insulation that is 20 mm or thicker.

• If heat insulation is used that is not as thick as speci

ed, condensation may form on

the surface of the insulation.

• In addition, use heat insulation with heat conductivity of 0.045 W/(m•K) or less 20 °C.

3.2. Additional materials required for installation

A. Refrigeration (armored) tape
B. Insulated staples or clamps for connecting wire (See your local electrical codes.)
C. Putty
D. Refrigeration lubricant
E. Clamps or saddles to secure refrigerant piping

4. ELECTRICAL REQUIREMENT

The indoor unit is powered from the outdoor unit. Do not power indoor unit from separate
power source.

WARNING

Refer to local codes for acceptable cable type.

Cable

Cable size

Remarks

Connection cable

Type 60245 IEC 57

(1.5 mm

)

3 cable + Ground, 1.5 Ø 230 V

Max. Cable Length: Limit voltage drop to less than 2%. Increase cable gauge if voltage
drop is 2% or more.

5. SELECTING THE MOUNTING POSITION

Decide the mounting position with the customer as follows:

5.1. Indoor unit

(1) Install the indoor unit level on a strong wall which is not subject to vibration.
(2) The inlet and outlet ports should not be obstructed : the air should be able to blow all

over the room.

(3)  Install the unit a dedicated electrical branch circuit.
(4)  Do not install the unit where it will be exposed to direct sunlight.
(5)  Install the unit where connection to the outdoor unit is easy.
(6)  Install the unit where the drain pipe can be easily installed.
(7)  Take servicing, etc. into consideration and leave the spaces shown in [6.1. Installation

dimensions]. Also install the unit where the

lter can be removed.

Correct initial installation location is important because it is dif

cult to move unit after it is

installed.

WARNING

Select installation locations that can properly support the weight of the indoor. Install
the units securely so that they do not topple or fall.

CAUTION

Do not install the unit in the following areas:
• Area with high salt content, such as at the seaside. It will deteriorate metal parts, causing the

parts to fail or the unit to leak water.

• Area

lled with mineral oil or containing a large amount of splashed oil or steam, such as a