45
Case 2
Automatic Address Setting (no compressor operation)
●
Indoor and outdoor unit power can be turned ON for each system separately.
Indoor unit addresses can be set without operating the compressors.
Automatic Address Setting from Outdoor Unit
1. On the No. 1 (main) unit control PCB, set the unit No. switch (S007) to
2
3
ON
1
(unit No. 1).
On the No. 2 (sub) unit control PCB, set the unit No. switch (S007) to
3
2
1
ON
(unit No. 2).
On the No. 3 (sub) unit control PCB, set the unit No. switch (S007) to
3
2
1
ON
(unit No. 3).
2. 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
OFF
ON
1
2
3
(3 units).
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”
ON
ON
OFF
1
2
. (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 13 on the outdoor main unit control
PCB, set the No. of indoor units DIP switch (S005) to “1”
ON
OFF
2
3
ON
1
, and set the rotary switch (S004) to “3.”
5. Turn on power to all indoor and outdoor units in the system.
6. Short-circuit the automatic address pin at the outdoor main unit (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 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. Next turn the power ON only for the indoor and outdoor units of the next (different) system. Repeat steps 1 – 5 in
the same way to complete automatic address settings for all systems.
↓
8. Operation from the remote controllers is now possible.
*
To perform automatic address setting from the remote controller, perform steps 1 – 5, then use the remote
controller and complete automatic address setting.
●
Refer to “Automatic Address Setting from Remote Controller.”
W-3WAY̲ECO-i̲U.indb 45
W-3WAY̲ECO-i̲U.indb 45
2011/11/07 16:29:43
2011/11/07 16:29:43
Summary of Contents for U-72MF1U9
Page 53: ...53 W 3WAY ECO i U indb 53 W 3WAY ECO i U indb 53 2011 11 07 16 29 45 2011 11 07 16 29 45...
Page 54: ...54 W 3WAY ECO i U indb 54 W 3WAY ECO i U indb 54 2011 11 07 16 29 45 2011 11 07 16 29 45...
Page 55: ...55 W 3WAY ECO i U indb 55 W 3WAY ECO i U indb 55 2011 11 07 16 29 45 2011 11 07 16 29 45...