En-16
Roll the in-
sulation over
the joint.
STEP 3
Press
fi
rmly
Press
fi
rmly
Slit
• FINISH
Check that there is no gap between the unit and the drain
hose insulation.
• When drain pump is used. (Ceiling concealed type only)
Do not cover the
panel window.
• When drain pump is not used. (Natural drainage)
Do not cover the
control box cover.
Note: Check for drainage
Pour about 1 liter of water from the position shown in the dia-
gram or from the air
fl
ow outlet to the dew tray. Check for any
abnormalities such as strange noises and whether the drain
pump functions normally.
CAUTION
Make sure the drain water is properly drained.
9. ELECTRICAL WIRING
WARNING
Before starting work, check that power is not being supplied
to the indoor unit and outdoor unit.
Match the terminal board numbers and connection cord colors
with those of the outdoor unit or branch box. Erroneous wiring
may cause burning of the electric parts.
Connect the connection cords
fi
rmly to the terminal board.
Imperfect installation may cause a
fi
re.
Always fasten the outside covering of the connection cord
with the cable clip. (If the insulator is chafed, electric leakage
may occur.)
Always connect the earth (ground) wire.
(1) Use ring terminals with insulating sleeves as shown in the
following
fi
gure to connect to the terminal block.
(2) Securely clamp the ring terminals to the wires using an
appropriate tool so that the wires do not come loose.
(3) Use the speci
fi
ed wires, connect them securely, and fasten
them so that there is no stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws.
Do not use a screwdriver that is too small, otherwise, the
screw heads may be damaged and prevent the screws
from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise,
the screws may break.
(6) See the table 1 for the terminal screw tightening torques.
Sleeve
Screw with
special washer
Screw with
special washer
Strip 6/16 in. (10 mm)
Ring
terminal
Ring terminal
Ring terminal
Terminal
board
Terminal block
Wire
Wire
WARNING
Use ring terminals and tighten the terminal screws to the
speci
fi
ed torques, otherwise, abnormal overheating may be
produced and possibly cause heavy damage inside the unit.
Table 1
Tightening Torque
M4 screw
11 to 16 lbf·in (1.2 to 1.8 N·m)
9374342419_02_IM.indb 16
9374342419_02_IM.indb 16
2015/6/25 10:27:15
2015/6/25 10:27:15
