12
English
No. 3 system When including BS unit
10-2 CONTROL BY 2 REMOTE CONTROLLERS (Con-
trolling 1 indoor unit by 2 remote controllers)
•
When using 2 remote controllers, one must be set to “MAIN”
and the other to “SUB”.
MAIN/SUB CHANGEOVER
(1) Insert a
screwdriver into the recess between the
upper and lower part of remote controller and, working
from the 2 positions, pry off the upper part (2 loca-
tions).
The remote controller PC board is attached to the upper
part of remote controller.
(2) Turn the MAIN/SUB changeover switch on one of the
two remote controller PC boards to “S”.
(Leave the switch of the other remote controller set to “M”.)
Wiring Method
(See ‘‘9. ELECTRIC WIRING WORK’’)
(3) Remove the control box lid.
(4) Add remote controller 2 (SUB) to the terminal block for
remote controller (P
1
, P
2
) in the control box.
(There is no polarity.)
[ PRECAUTIONS ]
•
Crossover wiring is needed when using group control and
2 remote controllers at the same time.
•
Connect the indoor unit at the end of the crossover wire
(P
1
, P
2
) to remote controller 2 (SUB).
10-3 REMOTE CONTROL (FORCED OFF AND ON/
OFF OPERATION)
•
Connect input lines from the outside to the terminals T
1
and T
2
on the terminal block (6P) for remote controller to
achieve remote control.
•
See the “
11. FIELD SETTING AND TEST RUN”
for
details on operation.
10-4 CENTRALIZED CONTROL
•
For centralized control, it is necessary to designate the group
No. For details, refer to the manual of each optional control-
lers for centralized control.
L
N
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 supply
single phase
50Hz 220-240V
or single phase
60Hz 220V
Fig. 21
Remote controller
(option)
Indoor unit A
BS unit
Outdoor unit
Upper part of
remote controller
Lower part of
remote controller
Insert the screwdriver here and gently work off the
upper part of remote controller.
Only one remote controller
needs to be changed if
factory settings have
remained untouched.
(Factory setting)
S
M
S
S
M
Remote controller
PC board
Wire specification
Sheathed vinyl cord or cable (2 wires)
Gauge
0.75 - 1.25 mm
2
Length
Max. 100 m
External terminal
Contact that can ensure the minimum applica-
ble load of 15 V DC, 1 mA.
FORCED
OFF
REMOTE
CONTRL
TRANSMISSION
WIRING
Remote
controller 1
(MAIN)
Remote
controller 2
(SUB)
Remote controller wiring
terminal block
Remote controller 2
(SUB)
Remote controller 1
(MAIN)
Crossover wire (P
1
.P
2
)
Max. No. of
indoor units
Indoor unit 2
Indoor unit 1
FORCED
OFF
REMOTE
CONTRL
TRANSMISSION
WIRING
Input A
4PEN365593-1C.book Page 12 Thursday, April 20, 2017 1:00 PM
