14
Terminal for remote
controller wiring (P1, P2)
No polarity
Remote
controller 2
(Sub)
Remote
controller 1
(Main)
Terminal block
(X2M)
< Caution >
• When using the group control and the 2 remote control-
lers control at the same time, connect the remote control-
ler 2 (Sub) to the indoor unit at the end of the crossover
wiring (the largest No.). (Refer to Fig. 28)
Indoor unit 1 Indoor unit 2
Indoor unit
largest No.
Remote
controller 2
(Sub)
Crossover
wiring (Remote
controller)
Remote
controller 1
(Main)
Fig. 28
9-7 FOR CENTRALIZED CONTROL
• When centralized equipment (such as centralized controller)
is used for control, it is required to set the group No. on the
remote controller.
For details, refer to the manuals attached to the centralized
equipment.
• Connect the centralized equipment to the indoor unit
connected to the remote controller.
9-8 FOR REMOTE CONTROL (FORCE OFF OR ON /
OFF OPERATION)
(1) Wiring method and specification
• Remote control is available by connecting the external
input to the terminal T1 and T2 on the terminal block for
remote controller and transmission wiring (X2M).
F2 T1 T2
FORCED
OFF
Input A
Wiring
Sheathed vinyl
cord or 2 core
cable
Wiring size 0.75-1.25 mm
2
Wiring length Max. 100 m
External
contact spec
Contact that can
make and break
the min. load of
DC 15 V · 1 mA
(2) Actuation
• Input A of FORCED OFF and ON/OFF OPERATION will
be as the table shown below.
Input A = ON Input A = OFF
In case of FORCED
OFF
Remote controller
prohibited
Remote controller
permitted
In case of ON/OFF
OPERATION
Operation Stop
(3) How to choose FORCED OFF or ON/OFF OPERATION
• For choosing FORCED OFF or ON/OFF OPERATION,
setting by remote controller is required.
(Refer to 10. FIELD SETTING)
< No. 2 system: When carrying out group control or 2
remote controller control. >
Outdoor
unit
Indoor
unit A
Indoor
unit B
Most down-
stream
indoor unit
For use with 2
remote controllers
Case of group
control
L N
P1 P2 F1 F2 T1 T2 P1 P2 F1 F2 T1 T2
P1 P2
Remote
controller
Remote
controller
(option)
Remote
controller
NL
NL
F2F1 F2F1
NL
IN/D
OUT/D
(option)
Power supply
1~
220-240 V
50 Hz
or
1~
220 V
60 Hz
P1 P2 F1 F2 T1 T2
P1 P2
P1 P2
Note) It is not needed to set the
indoor unit address when
using group control.
(It is automatically set when
the power is turned on.)
< No. 3 system: When BS unit is used >
Outdoor unit
BS unit
L N
Indoor unit A
Remote controller
(option)
F2F1 F2F1 F2F1 F2F1
IN/D
IN/D
OUT/ OD UT/D
NL
Power supply
1~
220-240 V
50 Hz
or
1~
220 V
60 Hz
P1 P2
P1 P2 F1 F2 T1 T2
NOTE
1. Remote controller wiring and transmission wiring have no
polarity.
WARNING
Be sure to install an earth leakage breaker.
Failure to do so may cause electric shocks and a
9-6 FOR CONTROL WITH 2 REMOTE CONTROL-
LERS (TO CONTROL 1 INDOOR UNIT WITH 2
REMOTE CONTROLLERS)
• For control with 2 remote controllers, set one remote
controller as Main and the other remote controller as Sub.
< Changeover method from Main to Sub and vice versa >
Refer to the installation manual attached to the remote
controller.
< Wiring method >
(1) Remove the control box lid.
(2) Carry out additional wiring from the remote controller
2 (Sub) to the terminals (P1, P2) for remote controller
wiring on the terminal block (X2M) in th
e control box.
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