18
English
8-3 CONTROL BY 2 REMOTE CONTROLLERS (CONTROLLING 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.
The remote controller PC board is attached to the upper
part of the remote controller.
(Refer to Fig. 26)
(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”.)
(Refer to Fig. 27)
Wiring Method
(See ‘‘7.ELECTRIC WIRING WORK’’)
(3)
Remove the service lid.
(4) Add remote control 2 (slave) to the terminal block
(6P) for remote controller (P
1
, P
2
) in the control box.
(There is no polarity.) (Refer to Fig. 24 and section
7-3 for the wiring size.)
8-4 COMPUTERISED CONTROL (FORCED OFF AND ON/OFF OPERATION)
(1)
Wire specifications and how to perform wiring
•
Connect the input from outside to terminals T1 and T2 of the terminal block (6P) 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.
8-5 CENTRALIZED CONTROL
•
For centralized control, it is necessary to designate the group No. For details, refer to the manual of each
optional controllers for centralized control.
Wire specification
Sheathed vinyl cord or cable (2 wire)
Gauge
0.75 - 1.25 mm
2
Length
Max. 100 m
External terminal
Contact that can ensure the minimum
applicable load of 15V 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 controller.
Input ON
→
OFF turns OFF unit.
Upper part of
remote controller
Lower part of
remote controller
Insert the screwdriver here
and gently work off the
upper part of the remote controller.
Fig. 26
S
M
S
S
M
Remote
controller
PC board
(Factory setting)
(Only one remote
controller needs
to be changed if
factory settings
have remained
untoched.)
Fig. 27
Input A
Fig. 28
F2
T1
T2
FORCED
OFF
01_EN_3P156215-12U.fm Page 18 Thursday, August 27, 2009 4:09 PM