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7. 5. Signal amplifier address setting
7. 5. 1.
Signal amplifier address setting
When using signal amplifiers, the address for signal amplifiers must be set.
The address for signal amplifiers 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 amplifier installation manual.)
7. 5. 2. P rocedures to enable automatic address setting
on signal amplifier
When setting the address of the signal amplifier, please use the factory setting. (See
the installation manual of the signal amplifier)
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 configure settings according to the procedures below.
First 2 digits Last 2 digits
MODE/EXIT
SELECT
SELECT
ENTER
Automatic address setting
for signal amplifiers
SELECT
ENTER
ENTER
MODE/EXIT
End
7. 6. Indoor unit address setting
7. 6. 1. Indoor unit address setting
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 figure below.
Operate using the master outdoor unit of each refrigerant
system.
En-19
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
"10" is displayed.
Press the "ENTER" button for
more than 3 seconds.
Setting is complete when the
number of units is displayed
Fig. Wiring example for automatic address setting
(1) Signal amplifier wiring example
(2)(3)(4) Indoor unit wiring example
(Connect the indoor and outdoor units of the same refrigerant system as shown
below.)
Refrigerant system1
2
12
Master unit
Refrigerant system2
3
1
Master unit
(1) Signal amplifier
Refrigerant system3
12
18
Master unit
NOTE)
• The automatic address function can be used for a maximum of 41 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 configured 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. P rocedures 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 configure settings according to the procedures below.
1: FUNCTION Setting
First 2 digits Last 2 digits
MODE/EXIT
SELECT
SELECT
ENTER
Automatic address setting
for indoor units
SELECT
ENTER
ENTER
End
(1) Signal amplifier
8
21
4
1
26
3
4
25
6
8
17 11
28
1
10
23
4
22
8
9
(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.
The number of indoor units with normal set-
tings will be displayed at the first 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.
(2)
(3)
(4)
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