25
English
CAUTION FOR WIRING
•
For connection to the terminal block for indoor-outdoor transmission wiring, use ring type crimp style ter-
minals with insulation sleeve or treat the wiring with insulation.
(Refer to Fig. 37)
•
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.
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
Insulation sleeve
Ring type crimp style terminal
Wiring
Fig. 37
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
01_EN_3P177351-6P.fm Page 25 Sunday, September 30, 2012 1:52 PM