En-2
Do not discard any accessories needed for installation until the installation work has been
completed.
Name and Shape
Q’ty
Application
Operating manual
1
Installation manual
1
(This book)
Operating Manual
(CD-ROM)
1
Cable tie
(Large)
4
For fixing the connection pipe
(Large and Small)
Cable tie
(Medium)
2
For transmission and remote
controller cable binding.
Coupler heat
insulation (Small)
1
For indoor side pipe joint (Small)
Coupler heat
insulation (Large)
1
For indoor side pipe joint (Large)
Special nut A
(Large flange)
4
For installing indoor unit
Special nut B
(Small flange)
4
For installing indoor unit
Template
(Carton top)
1
For ceiling openings cutting
Also used as packing
Drain hose
1
For installing drain pipe
VP25 (O.D.32, I.D.25)
Hose band
1
For installing drain hose
Drain hose
insulation
1
For installing drain hose
Cassette grille accessories
Name and Shape
Q’ty
Application
Connector cover
1
For covering connector
Tapping screw
(M5 × 12mm)
4
For mounting cassette grille
Tapping screw
(M4 × 12mm)
1
For mounting connector cover
2.4. Optional parts
Description
Model
Application
External connect kit
UTY-XWZXZC
For output function
(Output terminal / CNB01)
UTY-XWZXZB
For control input function
(Apply voltage terminal / CNA01)
UTY-XWZXZD
For control input function
(Dry contact terminal / CNA02)
UTY-XWZXZ7
For forced thermostat off function
(Apply voltage terminal / CNA03)
UTY-XWZXZE
For forced thermostat off function
(Dry contact terminal / CNA04)
Air outlet shutter plate
UTR-YDZB
Install the plate at outlet when carrying out
3-way direction operation.
Insulation kit for high
humidity
UTZ-KXGC
Install when the condition under the roof
is over 80% in humidity and over 30°C in
temperature.
Description
Model
Application
Fresh air intake kit
UTZ-VXAA
To take fresh air.
Wireless LAN adapter
UTY-TFSXZ*
For wireless LAN control.
External power supply
unit
UTZ-GXXA
Supply power to the indoor unit PCB when
the indoor unit is turned off to prevent er-
rors.
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
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 filled 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 affect 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 fibers or
flammable dust, or volatile inflammables such as paint thinner or gasoline.
•
If gas leaks and settles around the unit, it can cause a fire.
• 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 flammable 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.
Use the “Insulation kit for high humidity” (option), when the condition under the roof
is over 80% in humidity and over 30°C in temperature. Otherwise, there is a risk of
condensation on the ceiling.
Decide the mounting position with the customer as follows:
(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) A place from where the air can be distributed evenly throughout the room by the unit.
(5) Install the unit where connection to the outdoor unit (or RB unit) is easy.
(6) Install the unit where the connection pipe can be easily installed.
(7) Install the unit where the drain pipe can be easily installed.
(8) Install the unit where noise and vibrations are not amplified.
(9)
Take servicing, etc., into consideration and leave the spaces. Also install the unit
where the filter can be removed.
3.2. Installation dimensions
• Leave the space specified in Fig. A so that the air from the blower will cover the entire
room.
• Install the indoor unit on a place having a sufficient strength so that it withstands against
the weight of the indoor unit.
• A place from where drainage can be extracted outdoors easily.
WARNING
Never install in a room where there is the potential of leaking flammable gas. A spark
could ignite the gas and cause an explosion or fire.
Avoid installing in a location with high temperature.
Obstruction
1,800 to H
1,000 or
more
1,000 or more
Floor
Strong and durable ceiling
262 or
more
Unit: mm
Fig. A
9371022635-01_IM.indb 2
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