English
3
(Refer to the installation manual attached to the remote con-
troller for how to install.)
CARRY OUT THE WORK GIVING CAUTION TO THE FOL-
LOWING ITEMS AND AFTER THE WORK IS COMPLETED
CHECK THESE AGAIN.
1. Items to be checked after the installation work is completed
*Make sure to recheck the items of “SAFETY PRECAUTIONS”
2. Items to be checked at delivery
3. Points of the operation explanation
3.
SELECTION OF INSTALLATION LOCATION
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 con-
ditions 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 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 defec-
tive
Check
column
Are the indoor and outdoor
units rigidly fixed?
Drop · vibration ·
noise
Are the installation work of the
outdoor and indoor units com-
plete?
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 refriger-
ant piping and drain piping
completely carried out?
Water leakage
Does the drain flow out
smoothly?
Water leakage
Is the power supply voltage
identical to that stated in
the manufacturer’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 wir-
ing according to the specifi-
cation?
Does not operate
· burnout
Is any of air outlets or inlets
of the indoor and outdoor
units blocked with obsta-
cles?
Does not cool /
Does not heat
(It may lead to
capacity drop due
to fan speed drop
or malfunction of
equipment.)
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 cover, the air filter and the suction
grille attached?
Does the cool air discharge during the cooling opera-
tion and the warm air discharge during heating opera-
tion comes out of the unit?
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
customer?
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.
4PEN469440-1D.book Page 3 Tuesday, June 27, 2017 10:55 AM