14 English
2. When using 2 remote controllers
[ PRECAUTIONS ]
1. Make sure that the ground fault circuit interrupter is
designed to protect the air conditioner from ground faults,
overloads, and short-circuiting.
2. The remote controller wiring (P1 and P2) and transmission
wiring (F1 and F2) have no polarity.
10-3
CONTROL BY 2 REMOTE CONTROLLERS (Con-
trolling 1 indoor unit by 2 remote controllers)
• Set one of the remote controllers to main and the other to sub
in the case of remote control with two remote controllers.
Switching Main/Sub
• The setting of the BRC1E71 remote controller should be
switched referring to the manual supplied with the remote
controller.
• In case of BRC1D71 remote controller.
(1) Insert a screwdriver into the clearance between the
grooves of the lower casing and the upper casing to remove
the upper casing. (2 grooves) (The remote controller PCB is
attached to the upper casing.)
(2) Set the main/sub switch on one of the remote controller
PCBs to sub. (Keep the switch of the other remote controller
PCB set to main.)
10-4 COMPUTERIZED CONTROL (FORCED OFF
AND ON/OFF OPERATION)
(1) Wire specifications and how to perform wiring
• Connect the external input to terminals T1 and T2 of the
terminal block for remote controller.
(2) Actuation
• The following table explains FORCED OFF and ON/OFF
OPERATIONS in response to Input A.
(3) How to select FORCED OFF and ON/OFF OPERATION
• Turn the power on and then use the remote controller to
select operation.
10-5 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.
P
1
P
2
P
1
P
2
L1L2
IN/D OUT/D
F
1 F2 F1 F2
P
1
P
2
F
1
F
2
T
1
T
2
Control box
For use with
2 remote
controllers
Power Supply
208/230V
1 ~ 60Hz
Outdoor unit
Indoor unit
L
1
L
2
Lower part of
remote controller
Upper part of
remote controller
Insert the screwdriver here and gently work
off the upper part of remote controller.
Wire specification
CONDUCTORSTRANDEDNONSHIELDEDCOPPER06#ORVINYLJACKET
Gauge AWG18-
Length Max. 328 ft
External terminal
Contact that can ensure the minimum appli-
cable load of 15 V DC, 1 mA.
FORCED OFF ON/OFF OPERATION
Input “ON” stops operation (impossible by
remote controllers.)
Input OFF → ON turns
ON unit.
Input OFF enables control by remote con-
troller.
Input ON → OFF turns
OFF unit.
Only one remote
controller needs to be
changed if factory
settings have
remained untouched.
S
M
S
S
M
(Factory setting)
Remote controller
PC board
F2 T1 T2
FORCED
OFF
Input A
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