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9
English
CAUTION
• Do not apply excessive force to the attached drain
hose (1) by bending or twisting it.
This could cause water leakage.
•
In case of centralized drain piping, carry out piping work
according to the procedure shown in the fol lowing
Fig.18.
Make a downward inclination of 1/100
or more to avoid stagnancy of air.
If water stagnates in the drain
piping, it may cause clogging of
drain piping.
0 to 26-1/2 in.
(0 – 675 mm)
Centralized drain piping
Fig.18
• Select a size for the centralized drain piping that meets
the capacity of indoor units to be con nected. Refer to
the technical document.
• When installing the new indoor unit, use the attached
new drain hose (1) and the metal clamp (2).
If an old drain hose or a metal clamp is used, it may
cause water leakage.
(2) Afterpipingisnished,checkifthedrainows
smoothly.
[Whentheelectricwiringworkisnished]
• Gradually pour 1/4 gal. (1 ℓ) of water from the air outlet
on the left side of the drain socket into the drain pan
using caution to avoid splashing water on the electric
components such as the drain pump. Conrm drainage
by operating the indoor unit under cooling mode ac-
cording to 10.FIELDSETTING. (Refer to Fig. 19)
≥4 in. (100 mm)
Plastic container for pouring water
(Tube length of 4 in. (100 mm) or
more is necessary. )
Drain outlet for service
(with rubber plug)
Drain piping
Use it when draining water
in the drain pan
[Method of adding water]
Fig. 19
• After checking the drainage of water, refer to Fig.20
and attach the sealing material (14) to perform the
thermal insulation of the drain socket.
Sealing material (14)
(accessory)
Fig.20
[Whentheelectricwiringworkisnotnished]
• The electric wiring works (including ground) must be
carried out by a qualied electrician.
• If a qualied person is not present, after the electric
wiring work is nished, check the drainage accord ing
to the method specied in [When the electric wiring
workisnished].
1. Open the control box cover and connect the single
phase 208/230 V power supply to the terminal (L
1
, L
2
)
on the terminal block (X2M).
Connect the ground wiring to the ground terminal.
(Refer to Fig. 21)
L
1
L
2
LN
Single phase
power supply
208/230 V
Control box cover
Ground terminal
Ground wire
Terminal block (X2M)
Fig. 21
2. Make sure the control box cover is closed before
turning on the power supply.
• Throughout the whole process, carry out the
work using caution with wiring around the control
box so that the connectors not come off.
3. Gradually pour 1/4 gal. (1 ℓ) of water from the air
outlet on the left side of the drain socket into the
drain pan using caution to avoid splashing water on
the electric components such as the drain pump.
(Refer to Fig. 19)
01_EN_3P161684-9U.indd 9 8/8/2018 15:26:55
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