-
117
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(c) Plural Master / Slave setting
Set the plural address switches SW5-1 and SW5-2 on the indoor circuit
board as shown in the table below.
Indoor unit
Master
Slave a Slave b Slave c
Plural address switch
SW5-1
OFF
OFF
ON
ON
SW5-2
OFF
ON
OFF
ON
Master setting at time of
factory shipment
Z
Y
X
Indoor unit
Remote
controller
SW1
M
Remote
controller
SW1
S
Z
Y
X
Z
Y
X
Remote control signal line (with polarity) (Match up X , Y and
Z when making connections.)
Upper
Lower
PCB
SW2
SW1
SW1
M
S
Switch
Function
M
S
Mastor remote controller
Slave remote controller
SW1
Indoor unit (1)
Address [0]
Red
White
Black
Remote controller
Z
Y
X
Z
Y
X
Indoor unit (2)
Address [1]
Z
Y
X
Indoor unit (16)
Address [F]
Z
Y
X
Remote control signal line (with polarity) (Match up X , Y and
Z when making connections.)
(d)
Remote controller wiring and connection procedure
1) Master-slave settings when using multiple remote controllers
●
Up to 2 remote controllers can be connected for each indoor unit (or group).
a) There are two methods, one where the remote controller signal line (3-wire) for the slave remote controller is taken
from the indoor unit and the other where the signal lines are taken from the master remote controller.
b) Set the SW1 select switch on the slave remote controller on the Slave setting. (It is set on the Master setting at the
factory.)
Note (1) Remote controller sensor activation settings are possible only with the master remote controller. Install the master remote controller in a
location where it can sense the room temperature.
2) Controlling multiple indoor units using a single remote controller.
●
Up to 16 indoor units can be controlled with a single remote controller.
a) Run 3-wire remote control lines between each of the indoor units. See “Cautions when extending remote control
lines” on page concerning extended remote control lines.
b) Set the remote controller communications address on “0” ~ “F” using rotary switch SW2 on the indoor unit’s
control board, taking care not to overlap the addresses of any of the units.
c) After turning the power on, press the AIR CON No. button to display the indoor unit’s address. Be sure to confirm
that the settings are displayed correctly in the remote controller by using the
and
buttons to display the
address of each connected indoor unit.