English
9
2.
Tightening torque for the terminal screws.
• 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
properly tightened.
• If the terminal screws are tightened too hard, screws
might be damaged.
• Refer to the Table 4 for the tightening torque of the
terminal screws.
Table 4
3. Do not connect wires of different gauge to the same
grounding terminal. Looseness in the connection may
deteriorate protection.
4. Outside of the unit, keep transmission wiring at least 50 mm
away from power supply wiring. The equipment may
malfunction if subjected to electrical (external) noise.
5. For remote controller wiring, refer to the “INSTALLATION
MANUAL OF REMOTE CONTROLLER” attached to the
remote controller.
6.
Never connect power supply wiring to the terminal
block for remote controller wiring. A mistake of the sort
could damage the entire system.
7. Use only specified wire and tightly connect wires to
terminals. Be careful wires do not place external stress on
terminals. Keep wiring in neat order and so as not to
obstruct other equipment such as popping open the control
box lid. Make sure the lid closes tight. Incomplete
connections could result in overheating, and in worse case,
electric shock or fire.
9-2 WIRING EXAMPLE
• Fit the power supply wiring of each unit with a switch and
fuse as shown in the drawing.
COMPLETE SYSTEM EXAMPLE (3 SYSTEMS)
1. When using 1 remote controller for 1 indoor unit.
(Normal operation)
2. For group control or use with 2 remote controllers
Terminal
Size
Tightening torque
Terminal block for remote controller (6P)
M3.5
0.79 – 0.97 N·m
Power supply terminal block
Ground terminal
M4
M5
1.18 – 1.44 N·m
3.02 – 4.08 N·m
! "
L N
L N
IN/D
OUT/D
F1 F2 F1 F2
Control box
L N
L N
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
L N
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
L N
L N
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
L N
Outdoor unit
No. 1
System
Indoor
unit A
Indoor
unit B
Indoor
unit C
Most
downstream
Indoor unit
Power supply
220-240V
1
50Hz
Power supply
220-240V
1
50Hz
Power supply
220-240V
1
50Hz
Power supply
220-240V
1
50Hz
Indoor unit A
IN/D
OUT/D
F
1
F
2
F
1
F
2
Control box
L N
P
1
P
2
P
1
P
2
F
1
F
2
T
1
T
2
L N
P
1
P
2
F
1
F
2
T
1
T
2
L N
P
1
P
2
F
1
F
2
T
1
T
2
L N
P
1
P
2
F
1
F
2
T
1
T
2
P
1
P
2
P
1
P
2
L N
Outdoor unit
No. 2
System
Indoor unit B
Indoor unit C
Most
downstream
indoor unit
For use with 2
remote controllers
Power supply
220-240V
1
50Hz
Note: It is not necessary to designate
indoor unit address when using
group control.
The address is automatically set
when power is activated.
Fig. 3
4PEN408655-1B_2016_02.book Page 9 Friday, February 19, 2016 1:33 PM
