Service Manual

Field Settings SiUS181631EA
148 Test Operation and Field Settings
2.3.3 MAIN/SUB Setting when Using 2 Wired Remote Controllers
Outline The MAIN/SUB setting is necessary when 1 indoor unit is controlled by 2 remote controllers. When
you use 2 remote controllers, set one to MAIN and the other to SUB.
Details 1. The following message is displayed after power-on.
Checking the connection.
Please stand by.
When the above message is displayed, the backlight will not be ON.
[In the case that 1 indoor unit is controlled by 2 remote controllers:]
Make sure to set the sub remote controller when the above message is displayed.
Hold Mode button for 4 seconds or longer to set.
When the display is changed from “Main RC” to “Sub RC” the setting is completed.
2. Basic screen is displayed.
<Main remote controller> <Sub remote controller>
1
Checking the connection.
Please stand by.
Error Code U5
Main RC
1
Checking the connection.
Please stand by.
Error Code U5
Main RC
<Basic screen>
2
<Basic screen>
2
Checking the connection.
Please stand by.
Off reminder Timer
Sub RC
Set temperature
28 ˚C
Fan
ReturnPress the menu button
Checking the connection.
Please stand by.
Off reminder Timer
Main RC
Checking the connection.
Please stand by.
Off reminder Timer
Main RC
Set temperature
28 ˚C
Fan
ReturnPress the menu n
Press and hold 4 seconds
or longer Mode button of
sub remote controller side.