English
6
CAUTION
For safety, make sure to use a washer for hanger (3)
(accessory) and fix by double nuts firmly.
(2) Lift up the indoor unit, slide from the front and put the
hanger installing bolt (M8) into the securely for tempo-
rary hanging. (Refer to Fig. 11)
(3) Tighten the hanger fixing screws (M5) at 2 places,
which were removed, as they were before.
(Refer to Fig. 11)
It is necessary to prevent misalignment of the indoor
unit.
(4) Tighten the hanger installing bolts (M8) at 4 places
securely. (Refer to Fig. 11)
(5) When hanging the indoor unit, make sure to use the
level to have better drainage and install it horizontally.
Also, if it is possible at the installation site, install so
that the drain piping side is slightly lower.
(Refer to Fig. 12)
CAUTION
•
Setting the indoor unit at an angle opposite to the drain piping
might cause a water leakage.
• Do not insert materials other than that specified into the
clearance between the hanger and the washer for hanger
(3).
Unless the washers are properly attached, the hanging bolts
may come off from the hanger.
A. When the drain piping is tilted to the right, or to the right
and back.
Place it level, or tilt it slightly to the right or the back. (Within
1°)
B. When the drain piping is tilted to the left, or to the left
and back.
Place it level, or tilt it slightly to the left or the back. (Within 1°)
WARNING
The indoor unit must be securely installed on a place that
can withstand the mass.
If the strength is insufficient, the indoor unit may fall down and
cause injuries.
6.
REFRIGERANT PIPING WORK
•
For the outdoor unit refrigerant piping, refer to the installation
manual attached to the outdoor unit.
•
Carry out insulation of both gas and liquid refrigerant piping
securely. If not insulated, it may cause water leakage. For
gas piping, use insulation material of which heat resistant
temperature is not less than 120°C. For use under high
humidity, strengthen the insulation material for refrigerant
piping. If not strengthened, the surface of insulation material
may sweat.
•
Before installation work, make sure that the refrigerant is
R410A. (Unless the refrigerant is R410A, the normal opera-
tion cannot be expected.)
CAUTION
This air conditioner is a dedicated model for new refrig-
erant R410A. Make sure to meet the requirements shown
below and carry out installation work.
• Use dedicated piping cutters and flaring tools for
R410A.
• When making a flare connection, coat the flared inner
surface only with ether oil or ester oil.
• Use only the flare nuts attached to the air conditioner.
If other flare nuts are used, it may cause refrigerant
leakage.
• To prevent contamination or moisture from getting
into the piping, take measures such as pinching or
taping the pipings.
Hanger
Nut (field supply)
Hanging bolt
Washer for hanger (3)
(accessory)
Double nuts
Fig. 10
Hanger
fixing screw
(M5)
Attachment
part
Hanger
Reinforcing plate
When carrying the
indoor unit, do not
hold the reinforcing
plates.
Hanger installing
bolt (M8)
Fig. 11
A
A.B
B
≤1°
≤1°
≤1°
Fig. 12
01_EN_3P368557-2D.fm Page 6 Wednesday, February 13, 2019 2:46 PM
