Auto Address Setting - Panasonic U-72MF1U9 Installation Instructions Manual

7-4. Auto Address Setting

Basic wiring diagram: Example (1)
If link wiring is not used
(The inter-unit control wires are not connected to multiple refrigerant systems.)
Indoor unit addresses can be set without operating the compressors.
No. 1 (main outdoor unit)
System address
(system 1 setting)
(S002) (S003)
ON
1 2
No. of
outdoor
ON
units (3 units
setting) 1
Outdoor Unit
Indoor Unit
Remote Controller
Case 1
(1) Automatic Address Setting from the Outdoor Unit
1. To set the number of outdoor units, on the outdoor main unit control PCB set the No. of outdoor units DIP switch (S006) to
ON
ON
(3 units), and set the unit No. DIP switch (S007) to
1 2 3
OFF
2. On the No. 2 (sub) unit control PCB, set the unit No. switch (S007) to
On the No. 3 (sub) unit control PCB, set the unit No. switch (S007) to
3. On the outdoor main unit control PCB, check that the system address rotary switch (S002) is set to "1" and that the DIP switch
ON
ON
(S003) is set to "0." (These are the settings at the time of factory shipment.)
1 2
OFF
4. To set the number of indoor units that are connected to the outdoor unit to 10 on the outdoor main unit control PCB, set the No.
of indoor units DIP switch (S005) to
5. Turn ON the power to the indoor and outdoor units.
6. On the outdoor main unit control PCB, short-circuit the automatic address pin (CN100) for 1 second or longer, then release it.
↓
(Communication for automatic address setting begins.)
* To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it.
↓
The LED that indicates that automatic address setting is in progress turns OFF and the process is stopped.
Be sure to perform automatic address setting again.
(Automatic address setting is completed when LEDs 1 and 2 on the outdoor main unit control PCB turn OFF.)
↓
7. Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote controller, perform steps 1 to 5, then use the remote controller and
complete automatic address setting.
● Refer to "Automatic Address Setting from the Remote Controller."
settings
No. of indoor units
(10 units setting)
(S004)
0
ON
(S005)
ON ON
OFF
1 2 3 OFF
Unit
( S 0 0 ) 6 ( S 0 0 ) 7
Unit number
number
ON
ON
ON
setting
setting
(Unit No. 1)
(Unit No. 2)
2 3 OFF
1 2 3
OFF
Leave the socket that
is used to short-circuit
Unit
the terminal plug.
No. 1 (CN003)
(Main)
Inter-outdoor unit
control wiring
Inter-unit control wiring
1-1 1-2
ON
ON
"1." and set the rotary switch (S004) to "0."
1 2 3
OFF
43
No. 3 (sub unit)
No. 2 (sub unit)
Unit
(S007)
number
ON ON ON
setting
OFF 1
1 2 3 (Unit No. 3)
Unit
No. 2
(Sub)
Inter-outdoor unit
control wiring
1-3 1-10
Remote control
communication wiring
ON
(unit No. 1 - main outdoor unit).
1 2 3
ON
(unit No. 2).
1 2 3
ON
(unit No. 3).
1 2 3
(S007)
ON
2 3 OFF
Unit
No. 3
(Sub)
Fig. 7-5