English
10
CAUTION
If an old drain hose or an elbow or a clamp is used, it may
cause water leakage.
• Bend the tip of the metal clamp (2) so that the sealing
material does not bulge. (Refer to Fig. 25)
• When performing insulation, wind the large sealing mate-
rial (Large) (8) attached starting from the base of the
metal clamp (2) and drain hose (1) in the direction of the
arrow. (Refer to Fig. 24 and Fig. 25)
• Be sure to insulate all drain piping running indoors.
• Do not deflect the drain hose (1) inside of the indoor unit.
(Refer to Fig. 26)
(It may cause abnormal noise such as bubbling noise.)
(If the drain hose (1) is deflected, it may damage the suc-
tion grille.)
• Install supports at a distance of 1 to 1.5m so that the pip-
ing may not deflect. (Refer to Fig. 22)
CAUTION
To prevent dust from entering the indoor unit, cover the gap
with the drain piping by putty or insulation (field supply) so
that no clearance is made.
However, when putting piping and remote controller wiring
through the same hole, cover the gap between the through
cover and the piping after ‘‘8. ELECTRIC WIRING WORK’’
is completed.
CAUTION
To avoid the attached drain hose (1) getting excessive
force, do not bend nor twist it. (It may cause water leakage.)
When conducting the centralized drain piping, follow the
instructions in Fig. 27. For the diameter of the centralized
drain piping, select the diameter matching the capacity of
the indoor unit to be connected. (Refer to technical guide-
book.).
• Connecting drain piping.
Do not connect the drain piping directly to the sewage
that gives off ammonia odor. The ammonia in the sewage
may go through the drain piping and corrode the heat
exchanger of the indoor unit.
• When installing the drain pump kit (optional accessory),
also refer to the installation manual included to the drain
pump kit.
(2) After piping is finished, check if the drain flows smoothly.
• Gradually put about 0.6 liter of water for drain confirma-
tion into the drain pan from the air outlet.
(Refer to Fig. 28)
• After the drain piping work, install the stay for packing and
delivering (reinforcing plate), which was removed in the
section of ‘‘6. REFRIGERANT PIPING WORK’’.
However, it is not necessary to install the stay for packing
and delivering at the right side (reinforcing plate).
(Refer to Fig. 29)
Sealing material (Large) (8)
(accessory)
Metal clamp (2)
(accessory)
Drain hose (1)
(accessory)
Fig. 24
Do not make a gap to avoid
dew condensation.
Sealing
material
(Large) (8)
(accessory)
Sealing material
(Large) (8)
(accessory)
Metal clamp (2)
(accessory)
Metal clamp (2)
(accessory)
Drain hose (1)
(accessory)
Drain hose (1)
(accessory)
(For left rear/
left side)
(For right
back / right side)
Inserting direction
for the screw driver
approx. 45°
approx. 45°
Sealing material
(Large) (8)
Applying direction
Fig. 25
Tightening part
Metal clamp (2) (accessory)
Drain hose (1) (accessory)
approx. 45°
Bend the tip without
tearing the sealing
material (Large) (8)
Do not deflect
Fig. 26
Centralized drain piping
If water stagnates in the
drain piping, the piping
may be clogged.
100mm or more
Install with downward inclination
of 1/100 or more so that no air
will be stagnated.
Fig. 27
Plastic container for pouring water
(Tube length of 100mm is necessary)
100mm
or more
Air outlet
Fig. 28
Screw
Stay for packing and delivering
(reinforcing plate)
Fig. 29
4PEN469440-1H.book Page 10 Friday, March 22, 2019 2:36 PM
