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English
•
If the above is not available, make sure to observe the following items.
(Abnormal heating may occur if the wiring are not tightened securely.)
•
Use the required wiring, connect them securely and fix these wiring so that external force may not apply
to the terminals.
•
Use a proper screw driver for tightening the terminal screws.
If an improper screw driver is used, it may damage the screw head and a proper tightening cannot be car-
ried out.
•
If a terminal is over tightened, it may be damaged.
Refer to the table shown below for tightening torque of terminals.
•
Do not carry out soldering finish when stranded wiring are used.
CAUTION FOR MENDING THE COVER
•
In case the cover for penetrating piping is cut off and used as wiring penetrating hole, after the wiring con-
nection is finished, mend the cover.
•
Cut the sealing material (Small) (9) into two pieces and wrap each wiring with each piece.
(Refer to Fig. 39)
•
Seal the clearance around the wiring with putty and insulating material (field supply).
(If insects and small animals get into the indoor unit, short circuiting may occur inside the control box.)
•
If the low voltage wiring (remote controller wiring) and the high voltage wiring (transmission wiring, earth
wiring) are brought into the indoor unit from the same place, they may be affected by electric noise (out-
side noise) and cause malfunction or failure.
•
Keep the distance of 50mm or more between the low voltage wiring (remote controller wiring) and the
high voltage wiring (transmission wiring, earth wiring) at anywhere outside the indoor unit. If both the wir-
ings are laid down together, they may be affected by electric noise (outside noise) and cause malfunction
or failure.
WARNING
When wiring, form the wiring orderly so that the control box cover can be securely fastened.
If the control box cover is not in place, the wiring may float up or be sandwiched by the box and the cover
and cause electric shocks or a fire.
Tightening torque (N · m)
Terminal block for remote controller wiring
0.88 ± 0.08
Terminal block for transmission wiring
1.47 ± 0.14
Earth terminal
1.47 ± 0.14
Connection of 2 wirings
of same size must be
carried out on both sides.
Connection of wiring of
different sizes is
prohibited.
Connection of 2 wirings
on one side is prohibited.
Fig. 38
Seal with putty and
insulating material.
Sealing material
(Small) (9)
Remote controller
wiring
Transmission wiring/
earth wiring
Fig. 39
4PEN469441-1.book Page 24 Tuesday, March 21, 2017 1:49 PM