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English
11
〈
Precautions when laying power supply wiring
〉
•
Wiring of different thicknesses cannot be connected to the
power supply wiring terminal block. (Slack in the power sup-
ply wiring may cause abnormal heat.)
•
Use sleeve-insulated round crimp-style terminals for connec-
tions to the power supply wiring terminal block. When none
are available, connect wires of the same diameter to both
sides, as shown in the figure.
Follow the instructions are below if the wiring may get very
hot due to slack in the power supply wiring.
•
For wiring, use the designated power supply wiring and con-
nect firmly, then secure to prevent outside pressure being
exerted on the terminal board.
•
Use the correct screwdriver for tightening the terminal
screws. If the blade of screwdriver is too small, the head of
the screw might be damaged, and the screw will not be prop-
erly tightened.
•
If the terminal screws are tightened too hard, screws might
be damaged.
•
Refer to the table below for the tightening torque of the termi-
nal screws.
[ WIRING EXAMPLE
]
No. 1 system When using 1 remote controller for
1 indoor unit
No. 2 system For group control or use with 2 remote
controllers
No. 3 system When including BS unit
Terminal block
Tightening torque (N·m)
Remote controller / transmission wiring
terminal block (6P)
0.79 – 0.97
Power supply wiring terminal block (3P)
1.18 – 1.44
Electric wire
Ro
u
nd crimp-
s
tyle termin
a
l
In
su
l
a
tion
s
leeve
Connect wire
s
of
the
sa
me g
au
ge to
b
oth
s
ide
s
.
Do not connect
wire
s
of the
sa
me
g
au
ge to one
s
ide.
Do not connect
wire
s
of different
g
au
ge
s
.
Indoor
u
nit A
Indoor
u
nit B
Mo
s
t
down
s
tre
a
m
Indoor
u
nit
Power
su
pply
s
ingle ph
as
e
50Hz 220-240V
or
s
ingle ph
as
e
60Hz 220V
Power
su
pply
s
ingle ph
as
e
50Hz 220-240V
or
s
ingle ph
as
e
60Hz 220V
Power
su
pply
s
ingle ph
as
e
50Hz 220-240V
or
s
ingle ph
as
e
60Hz 220V
O
u
tdoor
u
nit
F
T
1
L
1
1
1
P
P
2
P
N
1
2
P
T
F
2
F
P
F
1
2
2
2
P
1
N
2
P
2
F
IN/D
1
OUT/D
1
P
F
2
F
1
P
L
F
1
2
T
2
T
1
P
P
2
1
F
2
N
F
L
1
2
T T
P
Remote controller
Remote controller
Remote controller
Fi
g
. 19
L N
L N
L N
(option)
(option)
(option)
O
u
tdoor
u
nit
Note) There i
s
not need to
s
et the indoor
u
nit
a
ddre
ss
when
us
ing gro
u
p control.
(It
i
s
au
tom
a
tic
a
lly
s
et when the power
i
s
t
u
rned on.)
Indoor
u
nit A
Indoor
u
nit B
Mo
s
t down-
s
tre
a
m
indoor
u
nit
For
us
e with 2
remote controller
s
C
as
e of gro
u
p control
L N
Fi
g
. 20
Remote controller
Remote controller
Remote controller
1
P
2
P
1
P
2
P
1
P
2
P
1
P
P
2
1
F
2
N
F
L
N
L
1
2
F
F
1
2
F
F
1
2
T T
1
P
P
2
1
F
2
F
1
2
T T
N
L
1
P
P
2
1
F
2
F
1
2
T T
IN/D OUT/D
(option)
(option)
Power
su
pply
s
ingle ph
as
e
50Hz 220-240V
or
s
ingle ph
as
e
60Hz 220V
O
u
tdoor
u
nit
B
S
u
nit
L
N
Indoor
u
nit A
Remote controller
(option)
Fi
g
. 21
F
F
1
2
F
F
1
2
F
F
1
2
F
F
1
2
IN/D
IN/D
OUT/D
OUT/D
1
P
P
2
1
F
2
N
F
L
1
2
T T
1
P
2
P
Power
su
pply
s
ingle ph
as
e
50Hz 220-240V
or
s
ingle ph
as
e
60Hz 220V