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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

Drain hose

Hose band

Drain hose insulation

VT wire

Coupler heat insulation

(Large)

Coupler heat insulation

(Small)

Cable tie (Extra large)

Cable tie (Large)

Cable tie (Medium)

Special nut A

(Large ﬂ ange)

Special nut B

(Small ﬂ ange)

Installation

template

Auxiliary pipe assembly

WARNING

Q'ty

Application

(This book)

For installing drain pipe

VP25 (O.D.32, I.D.25)

For installing drain hose

Adhesive type

(220 × 100 mm)

For ﬁ xing the drain hose L 280 mm

For indoor side pipe joint (Gas pipe)

For indoor side pipe joint (Liquid

pipe)

For ﬁ xing the coupler heat insulation

For power supply and

transmission and remote

controller cable binding

For installing indoor unit

For positioning the indoor unit

For connecting the piping

2.4. Optional parts

The following options are available.

Description

Model

UTR-DPB24T

Drain pump unit

9050642000

UTD-RF204

Round duct

9093160004

UTY-XWZXZC

UTY-XWZXZB

External connect kit

UTY-XWZXZD

UTY-XWZXZ7

UTY-XWZXZE

Wireless LAN adapter

UTY-TFSXZ*

External power supply

UTZ-GXXA

unit

3. INSTALLATION WORK

Correct initial installation location is important because it is difficult to move unit after it is

installed.

3.1. Selecting an installation location

Decide the mounting position together with the customer as follows.

Select installation locations that can properly support the weight of the indoor unit.

Install the units securely so that they do not topple or fall.

Do not install the indoor 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 ﬁ lled with mineral oil or containing a large amount of splashed oil or steam,

such as a kitchen. It will deteriorate plastic parts, causing the parts to fail or the unit

to leak water.

• Area that generates substances that adversely aﬀ ect the equipment, such as sulfuric

gas, chlorine gas, acid, or alkali. It will cause the copper pipes and brazed joints to

corrode, which can cause refrigerant leakage.

• Area that can cause combustible gas to leak, contains suspended carbon ﬁ bers or

ﬂ ammable dust, or volatile inﬂ ammables such as paint thinner or gasoline. If gas

leaks and settles around the unit, it can cause a ﬁ re.

• Area where animals may urinate on the unit or ammonia may be generated.

Do not use the unit for special purposes, such as storing food, raising animals,

growing plants, or preserving precision devices or art objects.

It can degrade the quality of the preserved or stored objects.

Do not install where there is the danger of combustible gas leakage.

Do not install the unit near a source of heat, steam, or ﬂ ammable gas.

Install the unit where drainage does not cause any trouble.

Install the indoor unit, power supply cable, transmission cable, and remote controller

cable at least 1 m away from a television or radio receivers. The purpose of this is to

prevent TV reception interference or radio noise. (Even if they are installed more than

1 m apart, you could still receive noise under some signal conditions.)

If children under 10 years old may approach the unit, take preventive measures so that

they cannot reach the unit.

Take precautions to prevent the unit from falling.

(1) Install the indoor unit on a place having a sufficient strength so that it withstands

against the weight of the indoor unit.

(2) The inlet and outlet ports should not be obstructed; the air should be able to blow all

over the room.

(3) Leave the space required to service the air conditioner.

(4) Install the unit where connection to the outdoor unit (or RB unit) is easy.

(5) Install the unit where the connection pipe can be easily installed.

(6) Install the unit where the drain pipe can be easily installed.

(7) Install the unit where noise and vibrations are not ampliﬁ ed.

(8) Take servicing, etc., into consideration and leave the spaces. Also install the unit

where the ﬁ lter can be removed.

(9) Do not install the unit where it will be exposed to direct sunlight.

Application

For output function

(Output terminal / CNB01)

For control input function

(Apply voltage terminal / CNA01)

For control input function

(Dry contact terminal / CNA02)

For forced thermostat off function (Apply

voltage terminal / CNA03)

For forced thermostat off function (Dry

contact terminal / CNA04)

For wireless LAN control.

Supply power to the indoor unit PCB when

the indoor unit is turned off to prevent errors.

WARNING

CAUTION

En-2