2-WAY MULTISET VRF SYSTEM
Address Settings
1
1 -
4
Auto Address Setting
Basic wiring diagram: Example (1)
ON
1
2
3
3
2
1
ON
1
ON
3
2
ON
1
2
2
ON
1
3
3
2
1
ON
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
(S006)
(S007)
(S005)
(S004)
(S003)
(S002)
0
1
1-1
1-2
1-3
1-10
• 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) settings
No. 2 (sub unit)
settings
Unit
No. 2
Unit
No. 3
Unit
No. 1
(Main)
No. 3 (sub unit)
settings
Outdoor main/sub
control wiring
Outdoor Unit
Indoor Unit
Remote controller
Outdoor main/sub
control wiring
Inter-unit control wiring
Group control wiring
(S007)
ON
OFF
(S007)
System address
: R.C. ADD
(system 1 setting)
NO. OF I/U
(10 units setting)
No. of outdoor
units: NO. OF
O/U (3 units
setting)
Unit number
setting: O/U ADD
(Unit No. 1)
Unit number
setting:
O/U ADD
(Unit No. 2)
Unit number
setting:
O/U ADD
(Unit No. 3)
Leave the socket
that is used to
short-circuit the
terminal plug.
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
(3 units), and set the unit address No. switch (S007) to
(unit No. 1 – main outdoor unit).
2. On the No. 2 (sub) unit control PCB, set the unit address No. switch (S007) to
(unit No. 2).
On the No. 3 (sub) unit control PCB, set the unit address No. switch (S007) to
(unit No. 3).
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 (S003) is set to
“0.” (These are the settings at the time of factory shipment.)
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
“1,” and set the rotary switch (S004) to “0.”
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.)
↓
(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. For the necessary procedure, refer to “Automatic Address Setting from the Remote
Controller.”
ON
OFF
2
3
ON
1
ON
ON
OFF
1
2
ON
1
2
3
3
2
1
ON
2
3
ON
1
ON
OFF
ON
1
2
3
Case 1
3. Auto Address Setting
* To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it.
The LED that indicates automatic address setting is in progress turns OFF and the process is stopped.
Be sure to perform automatic address setting again.
