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2.
temsto e c ec e at e 1verv
b h k d d I"
Items to be checked
In case of defective
Check column
Are the indoor and outdoor
Drop• vibration •
units rigidly fixed?
noise
Are the installation works of the Does not operate •
outdoor and indoor units
completed?
burnout
Have you carried out a leakage
test with the test pressure
Does not cool
I
Does
specified in the outdoor unit
not heat
installation manual?
Is the insulation of refrigerant
piping and drain piping
Water leakage
completely carried out?
Does the drain flow out
Water leakage
smoothly?
Is the power supply voltage
identical to that stated in the Does not operate •
manufacturer's label on the air burnout
conditioner?
Are you sure that there is no Does not operate •
wrong wiring or piping or no burnout
loose wiring?
Is earthing completed?
Danger in case of
leakage
Are the sizes of electric
Does not operate •
wiring according to the
specification?
burnout
Are any of air outlets or inlets of
the indoor and outdoor units
blocked with obstacles?(lt may
Does not cool
I
lead to capacity drop due to fan Does not heat
speed drop or malfunction of
equipment.)
Is the external static
Does not cool /
pressure set correctly?
Does not heat
Have you recorded the
refrigerant piping length and
Refrigerant charge
the refrigerant charge
amount is not clear
amount added?
1-'omts ot tne o eratIon ex uanatIon
p
p
In addition to the general usage, since the items in the
operation manual with the
&
WARNING and
&
CAUTION marks are likely to result in human bodily
injuries and property damages, it is necessary not only
to explain these items to the customer but also to have
the customer read them.
Furthermore, it is necessary to have the customer read
through the troubleshooting items while explaining the
above items.
4
3. SELECTION OF INSTALLATION LOCATION
Hold the hangers at 4 locations to move the indoor unit
when unpacking or after unpacked and do not apply
force to the piping (refrigerant and drain) and air outlet
flange. If the temperature and humidity in the ceiling is
likely to exceed 30
°
C, RH80%, use the additional
insulation stick to the indoor unit.
Use the insulation such as glass wool or polyethylene
that has thickness of 10 mm or more. However, keep the
insulated outside dimension smaller than the ceiling
opening so that the unit may go through the opening at
installation.
(1) Select the installation location that meets the following
conditions and get approval of the customer.
• Where the cool and warm air spreads evenly in the
room.
• Where there are no obstacles in the air passage.
• Where drainage can be ensured.
• Where the ceiling's lower surface is not remarkably
inclined.
• Where there is sufficient strength to withstand the mass
of the indoor unit. (If the strength is insufficient, the
indoor unit may vibrate and get in contact with the
ceiling and generate unpleasant chattering noise.)
• Where a space sufficient for installation and service can
be ensured.
• Where the piping length between the indoor and the
outdoor units is ensured within the allowable length.
(Refer to the installation manual of the outdoor unit.)
• Where there is no risk of flammable gas leak.
(length: mm)
�□' �
�
P.
n
0
0
<')
II
F
0
0
<')
Ceiling
�
(I I I I I I I I I I I I I I I I I I I I I I II I I I I Id;
0
C\I
<O
C:
�
II
C\I
F
-
-0
Q)
-0
-�
a.
.!!1
"E
"'
0 0
a..c
LO Cl
C\I C:
.5 �
� (J
0
C:
]
Floor surface :S
�-
maintenance
space.
• The H1 dimension indicates the
height of the product.
• Determine the H2 dimension by
maintaining a downward slope of
at least 1/100 as specified in
"7. DRAIN PIPING WORK".
Fig.1
Min. 700 (service space)
[Required installation place]
The dimensions indicate
the minimum required
space of installation.
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