11
English
Outside the air conditioners, separate the low voltage wiring
•
(remote controller and transmission wiring) and high voltage
wiring (ground wire and power supply wiring) by at least 5 in.
so that they do not pass through the same place together.
Proximity may cause electrical interference, malfunctions,
and breakage.
[ PRECAUTIONS ]
Refer to the “REMOTE CONTROLLER INSTALLATION
•
MANUAL” on how to install and lay the wiring for the remote
controller.
See also the “Wiring Diagram Label” located inside the unit’s
•
fan housing.
Connect the remote controller and transmission wiring their
•
respective terminal blocks.
CAUTION
Do not, under any circumstances, connect the power supply
•
wiring to the remote controller or transmission wiring termi-
nal block. Doing so can destroy the entire system.
[ WIRING EXAMPLE ]
No. 1 system When using 1 remote controller for
1 indoor unit
Indoor unit A
Indoor unit B
Most
downstream
Indoor unit
Power supply
single phase
60Hz 208/230V
Power supply
single phase
60Hz 208/230V
Power supply
single phase
60Hz 208/230V
Outdoor unit
F
T
1
L1
1
1
1
P
P
2
P
L2
1
2
P
T
F
2
F
P
F
1
2
2
2
P
1
L2
2
P
2
F
IN/D
1
OUT/D
1
P
F
2
F
1
P
L1
F
1
2
T
2
T
1
P
P
2
1
F
2
L2
F
L1
1
2
T T
P
Remote controller
Remote controller
Remote controller
L1 L2
(option)
(option)
(option)
L1 L2
L1 L2
No. 2 system For group control or use with 2 remote
controllers
Outdoor unit
Note) There is not need to set the indoor unit
address when using group control.
(It is automatically set when the power
is turned on.)
Indoor
unit A
Indoor unit B
Most down-
stream
indoor unit
For use with 2
remote controllers
Case of group control
L1 L2
Remote controller
1
P
2
P
1
P
P
2
1
F
2
L2
F
L1
L2
L1
1
2
F
F
1
2
F
F
1
2
T T
1
P
P
2
1
F
2
F
1
2
T T
L2
L1
1
P
P
2
1
F
2
F
1
2
T T
IN/D OUT/D
(option)
Power supply
single phase
60Hz 208/230V
Remote
controller
(option)
(SUB)
(MAIN)
1
P
2
P
1
P
2
P
No. 3 system When including BS unit
Outdoor unit
BS unit
L1 L2
Indoor unit A
Remote controller
(option)
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
L2
F
L1
1
2
T T
1
P
2
P
Power supply
single phase
60Hz 208/230V
CONTROL BY 2 REMOTE CONTROLLERS (Con-
9-2
trolling 1 indoor unit by 2 remote controllers)
When using 2 remote controllers, one must be set to “MAIN”
•
and the other to “SUB”.
If the remote controller to be used is Model BRC1E71, read
•
the installation manual supplied with the remote controller.
MAIN/SUB CHANGEOVER
Insert a
(1)
screwdriver into the recess between the
upper and lower part of remote controller and, work-
ing from the 2 positions, pry off the upper part.
The remote controller PC board is attached to the upper
part of remote controller.
Insert the screwdriver here and gently work
off the upper part of remote controller.
Lower part of
remote controller
Upper part of
remote controller
Turn the MAIN/SUB changeover switch on one of the
(2)
two remote controller PC boards to “S”.
(Leave the switch of the other remote controller set to “M”.)
S
M
S
S
M
(Factory setting)
Only one remote controller
needs to be changed
if factory settings have
remained untouched.
Remote controller
PC board
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