Test Run
5
- 8
8
7
6
5
4
3
2
1
4. Auto Address Setting
Case 2
2
3
ON
1
3
2
1
ON
3
2
1
ON
ON
OFF
ON
1
2
3
ON
ON
OFF
1
2
.
4.
ON
OFF
2
3
ON
1
(Communication for automatic address setting begins.)
*
*
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.
3.
5.
6.
7.
8.
Refer to “Automatic Address Setting from Remote Controller.”
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.
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.
(Automatic address setting is completed when LEDs 1 and 2 on the outdoor main unit control PCB turn OFF.)
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.
Short-circuit the automatic address pin at the outdoor main unit (CN100) for 1 second or longer, then release it.
Turn on power to all indoor and outdoor units in the system.
, and set the rotary switch (S004) 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
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).
(unit No. 1).
(unit No. 2).
(unit No. 3).
On the No. 1 (main) unit control PCB, set the unit No. switch (S007) to
On the No. 2 (sub) unit control PCB, set the unit No. switch (S007) to
2.
switch (S003) is set to “0”
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”
(These are the settings at the time of factory shipment.)
On the No. 3 (sub) unit control PCB, set the unit No. switch (S007) to
TD831158-00̲3WAY̲VRF̲SYS.indb 8
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2012/01/24 10:54:20
Summary of Contents for U-72MF1U9
Page 118: ...Section 8 TENTATIVE ...