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FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE
DURING CONSTRUCTION AND CHECK AFTER
INSTALLATION IS FINISHED.
a. Items to be checked after completion of work
If not properly done, what is
Items to be checked
likely to occur.
Are the indoor and outdoor
The units may drop, vibrate
unit fi xed fi rmly?
or make noise.
Was the installation of the
The unit may malfunction or
outdoor unit completed?
the components burn out.
Is the gas leak test fi nished? No cooling or heating.
Is the unit fully insulated?
(Refrigerant piping, drain
Condensate water may drip.
piping, and duct)
Dose drainage fl ow
Condensate water may drip.
smoothly?
Does the power supply
voltage conform to the
The unit may malfunction or
indication on the name
the components burn out.
plate?
Are wiring and piping
The unit may malfunction or
correct?
the components burn out.
Is the air conditioner or heat
Dangerous in case of
pump properly grounded?
current leakage.
Is wiring size according to
The unit may malfunction or
specifi cations?
the components burn out.
Is something blocking the air
outlet or inlet of either the
No cooling or heating.
indoor or outdoor units?
Did you set the external
No cooling or heating.
static pressure?
Are refrigerant piping length
The refrigerant charge in
and additional refrigerant
the system is not clear.
charge noted down?
Did you check that no wiring
connection screws were
Electric shock or fi re.
loose?
Also review the "SAFETY CONSIDERATIONS".
b. Items to be checked at the time of delivery
Items to be checked
Are you sure the control box lid, air fi lter, air inlet grille,
and air outlet grille are mounted?
Did you explain about operations while showing the
operation manual to your customer?
Did you deliver the operation manual along with the
installation manual to the customer?
Did you explain the customer the handling and cleaning
methods of the fi eld supplies (e.g., the air fi lter, air inlet
grilles, and air outlet grille)?
Did you deliver instruction manual, if any, for the fi eld
supplies to the customer?
c. Points for explanation about operations
The items with
WARNING and
operation manual are the items pertaining to possibilities for bodily
injury and material damage in addition to the general usage of the
product. Accordingly, it is necessary that you make a full explanation
about the described contents and also ask your customers to read
the operation manual.
English
Check
Check
CAUTION marks in the
3.
SELECTING INSTALLATION SITE
CAUTION
•
If you think the humidity inside the installation space might
exceed 86°F and RH80%, reinforce the insulation on the
unit body.
Use glass wool or polyethylene foam as insulation so that
the thickness is more than 2 in. and fi ts inside the installation
space opening.
(1)
Select an installation site where the following conditions
are fulfi lled and that meets with your customer's approval.
•
Where optimum air distribution can be ensured.
•
Where nothing blocks air passage.
•
Where condensate can be properly drained.
•
Where the supports are strong enough to bear the
indoor unit weight.
•
Where the false ceiling is not noticeably on an incline.
•
Where suffi cient clearance for maintenance and service
can be ensured. (Refer to Fig. 1-1 and Fig. 1-2)
•
Where piping between indoor and outdoor units is
possible within the allowable limit. (Refer to the installa-
tion manual for the outdoor unit.)
•
If the a return-air duct is not installed, carefully select
the place and method of product installation so that air
fl ow into the product will not be blocked.
If installed vertically
(Top view)
(Front view)
Fig. 1-1
24 or more
(unit : in.)
Air outlet
H
Air inlet
4
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