Fujitsu Airstage AJYA72GALH Manuel D'installation page 22

Fig. Wiring example for automatic address setting
(1) Signal amplifi er wiring example
(2)(3) Indoor unit wiring example
(Connect the indoor and outdoor units of the same refrigerant system as shown
below.)
Refrigerant system1
2 12 8
Master unit
Refrigerant system2
3 1 4
Master unit
NOTE)
• The automatic address function can be used for a maximum of 64 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.)
7. 6. 2. Procedures to enable automatic address setting
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
First 2 digits Last 2 digits
(The indicator when the
main power is turned on)
MODE/EXIT
SELECT
SELECT
(When [F4] to [F9] are displayed,
continue to press the "SELECT"
button until [F3] is displayed.)
ENTER
Automatic address setting
for indoor units
Press the SELECT button until
SELECT
"11" is displayed.
Press the "ENTER" button
ENTER
for more than 3 seconds.
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.
ENTER
NOTE) After the "ENTER" button is
pressed, the end processing will occur for
about 30 seconds. During this period, the
7 segment will blink.
End
En-21
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(1) Signal amplifi er
(2)
3
21 4 1 26
(3)
25 6 8 17 11 28
7. 7. RB unit address setting
CAUTION
After the address confi guration is complete for the indoor and outdoor units as well
as for the signal amplifi er, confi gure the RB unit address settings.
7. 7. 1. RB unit address setting
Address must be set for the RB unit.
Check the wiring. (Refer to 6.5 Transmission Line)
Manual setting → • When setting with the switch inside the RB unit, refer to the
RB unit installation manual.
Automatic setting → • Operate using the master outdoor unit of each refrigerant
system.
7. 7. 2. Procedures to enable automatic address setting
on RB units
Check that the rotary switch REF AD and RB AD on the RB 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 RB units, 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
First 2 digits Last 2 digits
MODE/EXIT
SELECT
SELECT
ENTER
Automatic address setting
for RB units
SELECT
ENTER
ENTER
End
(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 "22" is displayed.
Press the "ENTER" button
for more than 3 seconds.
The number of RB units for which
automatic address setting was
successful will be shown in the
fi rst two digits. The number of RB
units for which it was unsuccessful
will be shown in the last two digits.
Note: Incorrect confi guration of
the rotary switch "RB_AD" or
"REF AD" on the RB unit PC
board or incorrect wiring may
lead to automatic address setting
failure.