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