21 English
9-3 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 screw driver 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.) (Refer to Fig. 32)
(2) Tu r n t h e 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. 33)
Wiring Method (See ‘‘ELECTRIC WIRING WORK’’)
(3) Remove the terminal box lid
(4) Add remote control 2 (slave) to the terminal block for remote controller (P1, P2) in the terminal box.
(There is no polarity.) (Refer to Fig. 30 and 8-3.)
9-4 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 for remote controller.
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 15 V DC, 10 mA.
Upper part of
remote controller
Lower part of
remote controller
Fig. 32
Insert the screwdriver here and gently work
off the upper part of remote controller.
S
M
S
S
M
Remote
controller
PC board
(Factory setting)
Fig. 33
Only one remote controller needs
to be changed if factory settings
have remained untoched.
F2 T1 T2
FORCED
OFF
Input A
01_EN_3P161684-4E.fm Page 21 Monday, August 16, 2010 7:11 PM
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