En-3
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.
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, caus-
ing 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 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.
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 amplified.
(8) Take servicing, etc., into consideration and leave the spaces. Also install the unit
where the filter can be removed.
(9) Do not install the unit where it will be exposed to direct sunlight.
Detection range of the human sensor (30/36 model only)
CAUTION
Do not hit or push the human sensor. This may lead to damage or malfunction.
Do not touch the human sensor. Any scratches or dirt may lead to incorrect detection.
Do not place large objects near the human sensor. Also keep heating units outside the
sensor’s detection area.
Vertical angle 90° (Side view)
Horizontal angle 100° (Top view)
22 ft (7 m)
90°
22 ft
(7 m)
50°
50°
3.2. Installation
dimension
4/7/9 model
71 (1800)
or more
60 (1500)
or more
4 (80) or
more (*1)
Left side
3 (70) or
more (*2)
Wall hook bracket
Unit: in (mm)
Wall cap
Right side
8 (200) or
more (*2)
30/36 model
71 (1800)
or more
60 (1500) or more
4 (80) or
more (*1)
Left side
3 (70) or more
(*2)
Wall hook bracket
Unit: in (mm)
Wall cap
Right side 8 (200)
or more (*2)
*1: The distance between the wall hook bracket and the ceiling.
*2: The distance between the wall hook bracket and the side wall.
3.3. Installing the unit
WARNING
Install the air conditioner in a location which can withstand a load of at least 5 times the
weight of the main 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.
If the job is done with the panel frame only, there is a risk that the unit will come loose.
Please take care.
3.3.1 Determining the piping direction
The piping can be connected
according to the figure and table.
When the piping is connected
in direction (B), (C), (D) or (E),
cut along the piping groove in
the side of the front panel with a
hacksaw.
(A)
(F)
(D)
(G)
(E)
(B)
(C)
Model
(A)
Rear
outlet
(B)
Right
outlet
(C)
Bottom
outlet
(D)
Left
bottom
outlet
(E)
Left
outlet
(F)
Center
outlet
(G)
Left rear
outlet
4/7/9
Good
Good
Good
Good
Good
―
Good
30/36
Good
Good
Good
Good
Good
Good
Good
3.3.2 Installing the wall hook bracket
• Refer to figure below for the installation hole dimensions of the wall hook bracket.
• Before fastening the wall hook bracket to the wall with the screws, level it by tapping the
hook at the center of bracket to the wall with the handle of a screwdriver.
(1) Fasten the wall hook bracket to the wall with 5 or more screws and anchor bolts
through the holes near the outer edge of the bracket.
(Do not install the wall hook bracket at only 1 place or at an angle.)
(2) For a concrete wall, embed anchor bolts (3/8 in (10 mm) dia.) into the wall at the wall
hook bracket holes.
(Allow the anchor bolts to stick out at least 11/16 in (18 mm) from the wall. Use 2
bolts for flat concrete wall and 4 bolts for blister concrete wall.)
(3) Install the nuts to the anchor bolts through the wall hook bracket.
(4) Finally tighten the bolts and wood screws after confirming, using the level indicator,
that the clamp is horizontal.
WARNING
Install the wall hook bracket level, both horizontally and vertically. If the wall hook
bracket is tilted, wa ter will drip to the floor.
As the weight of the indoor unit is 33 to 40 lbs (15 to 18 kg), it should be installed after
properly examining the place where it is in tended to be in stalled. If the place is not
strong enough, a plank or girder should be used to make the place sufficiently strong so
that the wall can support the weight.
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2017/12/20 9:48:59
2017/12/20 9:48:59
