English
3
FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE
DURING CONSTRUCTION AND CHECK AFTER
INSTALLATION IS FINISHED.
a. Items to be checked after completion of work
Please check all items listed in the “SAFETY CONSIDER-
ATIONS” above once again.
b. Items to be checked at time of delivery
c. Points for explanation about operations
3
SELECTING INSTALLATION SITE
CAUTION
•
When moving the unit during or after unpacking, make sure
to lift it by holding its hanger brackets. Do not exert any pres-
sure on other parts, especially the refrigerant piping, drain
piping, water supply piping and duct connecting flange.
•
If you think the humidity inside the ceiling might exceed 30°C
and RH80%, reinforce the insulation on the inter-unit piping.
Use glass wool or polyethylene foam as insulation so that it is
no thicker than 10mm and fits inside the ceiling opening.
•
Use glass wool or polyethylene form of 10mm or more thick
which fit into ceiling opening as insulation material.
(1) Select an installation site where the following conditions
are fulfilled and that meets with your customer’s approval.
•
Install in a place which has sufficient strength and stabil-
ity. (Beams, ceiling, and other locations capable of fully
supporting the weight of the unit.)
Insufficient strength is dangerous. It may also cause
vibration and unusual operating noise.
•
Where piping between indoor and outdoor units is possi-
ble within the allowable limit. (Refer to the installation
manual for the outdoor unit.)
•
Where nothing blocks air passage.
•
Where condensate can be properly drained.
•
Install in a location where the air around the unit or taken
into the humidifier will not drop below 0°C.
•
Do not install the unit directly against a ceiling or wall.
(If the unit is in contact with the ceiling or wall, it can
cause vibration.)
•
Where sufficient clearance for maintenance and service
can be ensured.
(Refer to Fig. 1)
[PRECAUTION]
•
Install the indoor and outdoor units, power supply wiring and
connecting wires at least 1 meter away from televisions or
radios in order to prevent image interference or noise.
Depending on the radio waves, a distance of 1 meter may
not be sufficient enough to eliminate the electric noise.
•
The bellows may not be able to be used in some disc-
tricts, so exercise caution. (Contact your local govern-
ment office or fire department for details.)
•
When discharging exhaust air to a common duct, the
Building Standard Law requires the use of fire-proof
materials, so attach a 2m copper plate standing duct.
(2) Use suspension bolts for installation. Check whether
the ceiling is strong enough to support the weight of
the unit or not. If there is a risk, reinforce the ceiling
before installing the unit.
(Installation pitch is mentioned as follow. Refer to it to check
for points requiring reinforcing.)
Items to be checked
If not properly done,
what is likely to occur
Check
Are the indoor and
outdoor unit fixed
firmly?
The units may drop,
vibrate or make noise.
Is the outdoor duct
installed to outside
with down slope?
(Refer to page 8 Fig. 16)
Condensate water
may drip.
Is the gas leak test
finished?
It may result in insuffi-
cient cooling.
Is the unit fully insu-
lated?
Condensate water
may drip.
Does drainage flow
smoothly?
Condensate water
may drip.
Does the power sup-
ply voltage corre-
spond to that shown
on the name plate?
The unit may malfunc-
tion or the compo-
nents burn out.
Are wiring and piping
correct?
The unit may malfunc-
tion or the compo-
nents burn out.
Is the unit safely
grounded?
Dangerous at electric
leakage.
Is wiring size accord-
ing to specifications?
The unit may malfunc-
tion or the compo-
nents burn out.
Is something blocking
the air outlet or inlet of
either the indoor or
outdoor units?
It may result in insuffi-
cient cooling.
Are refrigerant piping
length and additional
refrigerant charge
noted down?
The refrigerant
charge in the system
is not clear.
Is water supplied with
the water supply pip-
ing connected?
Not humidified.
Items to be checked
Check
Did you explain about operations while showing
the operation manual to your customer?
Did you hand the operation manual and warranty
over to your customer?
The items with
WARNING and
CAUTION marks in
the 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.
Electric parts box
Maintenance
space
600
or more
20 or more
Fig. 1
minimum hight
∗
H
l
Select the
∗
H dimension such that a downward slope
of at least 1/100 is ensured as indicated in “
6 DRAIN
PIPING AND WATER SUPPLY WORK
”.
Unit (mm)
01_3P130768-1A_En.fm Page 3 Wednesday, March 23, 2005 7:00 PM
