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4
English
FOR THE FOLLOWING ITEMS, TAKE
SPECIAL CARE DURING CONSTRUCTION
AND CHECK AFTER INSTALLATION IS
FINISHED.
(1) Items to be checked after completion of work
Items to be checked
If not properly done,
what is likely to occur
Check
Are the indoor and outdoor
units xed rmly?
The units may drop, vibrate
or make noise.
Is the gas leak test n-
ished?
It may result in insufcient
cooling or heating.
Is the unit fully insulated?
Condensate water may
drip.
Does drainage ow
smoothly?
Condensate water may
drip.
Does the power supply
voltage correspond to that
shown on the name plate?
The unit may malfunction
or the components may
burn out.
Are wiring and piping
correct?
The unit may malfunction
or the components may
burn out.
Is the unit safely
grounded?
It may be dangerous at
electric leakage.
Is wiring size according to
specications?
The unit may malfunction
or the components burn
out.
Is something blocking the
air outlet or inlet of either
the indoor or outdoor unit?
It may result in insufcient
cooling.
Are refrigerant piping
length and additional
refrigerant charge noted
down?
The refrigerant charge in
the system is not clear.
Did you check that no
wiring connection screws
were loose?
Electric shock or re.
Also review the “SAFETY CONSIDERATIONS”
(2) Items to be checked at delivery
Items to be checked Check
Did you explain how to operate the unit while showing
the operation manual to your customer?
Did you give the operation manual over to your cus-
tomer?
2-3 NOTE TO THE INSTALLER
Be sure to instruct customers how to properly operate the
unit (especially cleaning lters, operating different functions,
and adjusting the temperature) by having them carry out
operations themselves while looking at the manual.
3. SELECTING INSTALLATION SITE
(1) Select an installation site where the following condi-
tions are fullled and has the customer’s approval.
•
Where there will be no possible dripping of water from
the refrigerant pipe, drain pipe, etc., in the area between
the unit and ceiling, and in the attic just above the unit.
• Where the wall is strong enough to bear the indoor
unit weight.
• Where sufcient clearance for installation and mainte-
nance can be ensured.
(Refer to Fig. 1 and Fig. 2)
• Where optimum air distribution can be ensured.
• Where nothing blocks the air passage.
• Where condensate can be properly drained.
• Where the wall is not signicantly tilted.
• Where piping between indoor and outdoor unit is
possible within the allowable limit.
(Refer to the installation manual of the outdoor unit.)
• Install the indoor and outdoor units power supply
wiring and connecting wires at least 3.5ft. (1m) away
from televisions or radios in order to prevent image
interference or noise.
(Depending on the radio waves, a distance of 3.5ft.
(1m) may not be sufcient enough to eliminate the
noise.)
• Where the cool (warm) air reaches all across the
room.
Fig. 1
≥ 2 (50) ≥ 2 (50)
[ Space required for installation [in. (mm)] ]
≥ 3-1/2 (90)
≥ 1-1/4 (30)
Floor
Fig. 2
Obstruction
≤ 4-3/4 (120)
≥ 100 (2500)
(from floor)
For installation
in high places.
01_EN_3PN07521-5H.indd 4 7/9/2018 14:13:33
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