3
English
CARRY OUT THE WORK GIVING CAUTION TO THE
FOLLOWING ITEMS AND AFTER THE WORK IS
COMPLETED CHECK THESE AGAIN.
1. Items to be checked after the installation work is com-
pleted
Make sure to recheck the items of “SAFETY PRECAUTIONS”.
2. Items to be checked at delivery
Points of the operation explanation
3.
SELECTION OF INSTALLATION LOCA-
TION
When unpacking and moving the indoor unit after
unpacked, do not apply force to the piping (refrigerant and
drain) and resin parts.
(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 is no obstacles in the air passage.
•
Where drainage can be ensured.
•
Where the ceiling 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.
(Refer to Fig. 1 and Fig. 2)
•
Where the piping length between the indoor and the out-
door units is ensured within the allowable length. (Refer
to the installation manual attached to the outdoor unit.)
•
Where there is no risk of flammable gas leak.
Items to be checked
In case of defective
Check
column
Are the indoor and out-
door units rigidly fixed?
Drop · vibration · noise
Are the installation work
of the outdoor and indoor
units complete?
Does not operate ·
burnout
Have you carried out a
leakage test with the test
pressure specified in the
outdoor unit installation
manual?
Does not cool / Does
not heat
Is the insulation of refrig-
erant piping and drain
piping completely carried
out?
Water leakage
Does the drain flow out
smoothly?
Water leakage
Is the power supply volt-
age identical to that
stated in the manufac-
turer’s label on the air
conditioner?
Does not operate ·
burnout
Are you sure that there is
no wrong wiring or piping
or no loose wiring?
Does not operate ·
burnout
Is earthing completed?
Danger in case of
leakage
Are the sizes of electric
wiring according to the
specification?
Does not operate ·
burnout
Is any of air outlets or
inlets of the indoor and
outdoor units blocked
with obstacles?
(It may lead to capacity
drop due to fan speed
drop or malfunction of
equipment.)
Does not cool / Does
not heat
Have you recorded the
refrigerant piping length
and the refrigerant
charge added?
Refrigerant charge
amount is not clear
Items to be checked
Check
column
Have you carried out field setting? (if necessary)
Are the control box lid, the air filter and the suction
grille attached?
Does the cool air discharge during the cooling
operation and the warm air discharge during
heating operation?
Have you explained how to operate the air condi-
tioner showing the operation manual to the cus-
tomer?
Have you explained the description of cooling,
heating, program dry and automatic (cooling/
heating) given in the operation manual to the cus-
tomer?
If you set the fan speed at thermostat OFF, did
you explain the set fan speed to the customer?
Have you handed the operation manual and the
installation manual to the customer?
In addition to the general usage, since the items in the
operation manual with the
WARNING and
CAU-
TION 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.
It is also necessary to explain the items of “NOT MAL-
FUNCTION OF THE AIR CONDITIONER” to the customer
and have the customer read them carefully.
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