6. Test run
Indicating (marking) the indoor and outdoor unit combination number
Indicate (mark) the number after automatic address setting is completed.
(1)So that the combination of each indoor unit can be easily checked when multiple units are installed, ensure that the indoor and outdoor unit numbers correspond to the system address number on the outdoor unit control PCB, and use a magic marker or similar means which cannot be easily erased to indicate the numbers in an easily visible location on the indoor units (near the indoor unit nameplates).
Example: (Outdoor) 1 - (Indoor)
(2)These numbers will be needed for maintenance. Be sure to indicate them.
*Use the remote controller to check the addresses of the indoor units. Press and hold the 
button and 
button for 4 seconds or longer (simple settings mode). Then press the button 
and select the indoor address. (Each time the button is pressed, the address changes as follows:
Press the 
button again to return to the normal remote controller mode.
For details, refer to the separate handbook.
Main-sub remote controller control
Control using 2 remote controller switches
Connecting 2 remote controllers to control 1 indoor unit
Remote controller | Remote controller |
switch (main) | switch (sub) |
Optional
1 2
Optional
1 2
Remote controller wiring
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| Terminal plate | |
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| controller wiring | ||
| Indoor unit |
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| U1U2 |
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Ground
1 2
Outdoor unit
Ground
(Setting procedure)
(1)Set 1 of the 2 connected remote controllers as the main remote controller.
(2)On the other remote controller (sub remote controller), change the remote controller address connector on the reverse side of the remote controller switch PCB from the Main position to the Sub position.
The remote controller will now function as the sub remote controller.
Remote controller | Remote controller |
| address connector |
| Main |
| RCU check |
| Sub |
| RCU. ADR |
Fig.
SM831148
6
