En-2
Vacuum pump
A conventional vacuum pump can be used by installing a
vacuum pump adapter.
Be sure that the pump oil does not back
fl
ow into the sys-
tem. Use one capable for vacuum suction of –100.7 kPa
(5 Torr, –755 mmHg).
Gas leakage detector
Special gas leakage detector for R410A refrigerant.
]1
2.3. Accessories
WARNING
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
Q’ty
Application
Operating Manual
1
Installation Manual
1
(This book)
Cable tie (Large)
4
For
fi
xing the coupler heat
insulation
Cable tie (Medium)
2
For transmission and remote con-
troller 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
fl
ange)
4
For suspending the indoor unit from
ceiling
Special nut B
(Small
fl
ange)
4
Name and Shape
Q’ty
Application
Drain hose
2
For installing drain pipe
VP25 (O.D.32, I.D.25)
Hose Band
2
For installing drain hose
Drain hose insulation
2
For installing drain hose
]1
2.4. Optional parts
The following options are available.
Description
Model No.
Application
External output wire
9379529013
For output port
External input wire D
9368779016
For control input port
(Apply voltage terminal)
External input wire F
9368779023
For control input port
(Dry contact terminal)
External input wire B
9368778002
For forced thermostat off port
(Apply voltage terminal)
External input wire E
9368778019
For forced thermostat off port
(Dry contact terminal)
Remote sensor
UTD-RS100
Room temperature sensor
IR receiver unit
UTB-*WC
For the wireless
remote controller.
When installing, please refer to the installation manual of each optional part.
t
3. INSTALLATION WORK
Correct initial installation location is important because it is dif
fi
cult to move unit after it is
installed.
]1
3.1. Selecting an installation location
Decide the mounting position together with the customer as follows.
WARNING
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.
CAUTION
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 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
fi
bers or
fl
ammable dust, or volatile in
fl
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.
9373870111-01_IM.indb Sec1:2
9373870111-01_IM.indb Sec1:2
2012-7-12 14:18:59
2012-7-12 14:18:59
