En-19
Signalamplifieraddresssetting7.5.
Signal amplifi er address setting7. 5. 1.
When using signal amplifi ers, the address for signal amplifi ers must be set.
The address for signal amplifi ers can be set automatically from 1 outdoor unit (master
unit) on the network.
Refer to the next section “Fig. Wiring example for automatic address setting” for the
wiring example.
(For manual setting of address, refer to the signal amplifi er installation manual.)
Procedures to enable automatic address setting 7. 5. 2.
on signal amplifi er
When setting the address of the signal amplifi er, please use the factory setting. (See
the installation manual of the signal amplifi er)
When the system is normal, nothing will be displayed on the 7 segment indicator.
When ERROR is displayed, inspect the units.
Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons on the outdoor unit PC
board to confi gure settings according to the procedures below.
1: FUNCTION Setting
(The indicator when the
main power is turned on)
First 2 digits
Last 2 digits
MODE/EXIT
SELECT
ENTER
ENTER
MODE/EXIT
SELECT
SELECT
End
ENTER
(When [F4] to [F9] are displayed,
continue to press the “SELECT”
button until [F3] is displayed.)
Automatic address setting
for signal amplifiers
Press the “SELECT” button until
“10” is displayed.
Press the “ENTER” button for
more than 3 seconds.
Setting is complete when the
number of units is displayed
Indoor unit address setting7. 6.
Indoor unit address setting7. 6. 1.
Address must be set for the indoor unit.
Manual setting → • When setting with the switch inside the indoor unit, refer to
the indoor unit installation manual.
• When setting with a remote controller, refer to the remote
controller installation manual.
Automatic setting → • Check that the wiring is as shown in the fi gure below.
Operate using the master outdoor unit of each refrigerant
system.
Wiring example for automatic address settingFig.
(1) Signal amplifi er wiring example
(2)(3)(4) Indoor unit wiring example
(Connect the indoor and outdoor units of the same refrigerant system as shown
below.)
2 12 8 21 4 1 26 3
314256 8171128
12 18 1 10 23 4 22 8 9
(2)
(3)
(4)
Refrigerant system1
Refrigerant system2
Refrigerant system3
Master unit
Master unit
Master unit
(1) Signal amplifi er
(1) Signal amplifi er
NOTE)
The automatic address function can be used for a maximum of 48 indoor units •
installed to the same refrigerant system. When network is connected to other
refrigerant systems, the automatic address function cannot be used.
The addresses of indoor units that have been confi gured automatically cannot be •
assigned in the order when they are installed. (Refer to the indoor unit installation
manual for the procedures to check the addresses.)
Procedures to enable automatic address setting 7. 6. 2.
on indoor units
Check that the rotary switch IU AD on the indoor unit PC board is set to “00”.If it is not
set to “00”, it means the address of that device is not set. (Factory default is “00”).
Turn on the power of the indoor and outdoor units.
When the system is normal, nothing will be displayed on the 7 segment LED indi-
cator.
When ERROR is displayed, inspect the units.
Use the “MODE/EXIT”, “SELECT”, and “ENTER” buttons on the outdoor unit PC
board to confi gure settings according to the procedures below.
1: FUNCTION Setting
(The indicator when the
main power is turned on)
(When [F4] to [F9] are displayed,
continue to press the “SELECT”
button until [F3] is displayed.)
Press the SELECT button until
“11” is displayed.
Press the “ENTER” button
for more than 3 seconds.
End
The number of indoor units with normal set-
tings will be displayed at the fi rst 2 digits of
the 7 segment LED indicator. The number
of indoor units with error will be displayed
at the last 2 digits.
NOTE) After the “ENTER” button is
pressed, the end processing will occur for
about 30 seconds. During this period, the
7 segment will blink.
Automatic address setting
for indoor units
First 2 digits
Last 2 digits
MODE/EXIT
SELECT
ENTER
ENTER
SELECT
ENTER
SELECT
9378945104-01_IM.indb Sec1:199378945104-01_IM.indb Sec1:19 2013-3-12 14:08:282013-3-12 14:08:28
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