En-4
3. INSTALLATION WORK
WARNING
• Do not turn on the power until all installation work is complete.
• Carrying and installation of the unit should be performed by a suf
fi
cient number of
people and with suf
fi
cient equipment that is adequate for the weight of the unit.
Performing such work with an insuf
fi
cient number of people or with inadequate equip-
ment could result in dropping of the unit or personal injury.
CAUTION
For installation details, refer to the technical data.
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
and which will not amplify sound or vibration. If the installation location is not strong
enough, the indoor unit may fall and cause injuries.
• 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
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 where is close to heat sources.
– 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, grow-
ing plants, or preserving precision devices or art objects. It can degrade the quality of
the preserved or stored objects.
• Install the unit where drainage does not cause any trouble.
• Install the indoor unit, outdoor unit, power supply cable, transmission cable, and
remote control cable at least 40 in (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 40 in (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.
• Install the unit where ambient temperature does not reach 140 °F (60 °C) or more.
Take a measure such as ventilation for an environment in which heat is retained.
(1) The inlet and outlet ports should not be obstructed; the air should be able to blow all
over the room.
(2) Leave the space required to service the air conditioner.
(3) Install the unit where connection to the outdoor unit is easy.
(4) Install the unit where the connection pipe can be easily installed.
(5) Install the unit where the drain pipe can be easily installed.
(6) Install the unit where noise and vibrations are not ampli
fi
ed.
(7) Take servicing, etc., into consideration and leave the spaces. Also install the unit where
the
fi
lter can be removed.
(8) Do not install the unit where it will be exposed to direct sunlight.
Correct initial installation location is important because it is dif
fi
cult to move unit after it is
installed.
3. 2. Installation dimension
Unit: in (mm)
6 (150)
or more
12 (300)
or more
99 (2500) or more
(When no ceiling)
1 (20) or more
1 (20) or more
Provide a service access for maintenance purposes.
(Bottom side)
Unit: in (mm)
AIR
Control box
12 (300) or
more
20 (500) or more
20 (500) or more
Service access
* The service access necessary for fan units and
fi
lter maintenance.
(Bottom side)
Unit: in (mm)
AIR
Service access
Fan unit side
12 (300) or more
20 (500) or more
4 (100) or more
4 (100)
3. 3. Installing the unit
WARNING
• Install the air conditioner in a location which can withstand a load of at least 3 times
the weight of the main unit and which will not amplify sound or vibration. If the instal-
lation location is not strong enough, the indoor unit may fall and cause injuries.
MODEL
Withstandable weight (Unit weight x 3*)
AR 12
198 Lbs (90 kg)
AR 18/24/30
277 Lbs (126 kg)
AR 36/42/48
363 Lbs (165 kg)
*In accordance with UL standards.
• Carrying and installation of the unit should be performed by a suf
fi
cient number
of people and with suf
fi
cient equipment that is adequate for the weight of the unit.
Performing such work with an insuf
fi
cient number of people or with inadequate equip-
ment could result in dropping of the unit or personal injury.
• If the job is done with the panel frame only, there is a risk that the unit will come
loose. Please take care.
• When fastening the hangers, make the bolt positions uniform.
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