MXS Service Manual

SiUS121736EA Field Settings
Trial Operation and Field Settings 242
5.3.4 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.
<Sub remote controller>
1 1
<Basic screen>
2
<Basic screen>
2
Fan
Fan
<Main remote controller>
Checking the connection.
Please stand by.
Main RC
Checking the connection.
Please stand by.
Main RC
Error Code U5
Checking the connection.
Please stand by.
Main RC
Error Code U5
Checking the connection.
Please stand by.
Main RC
Press and hold 4 seconds
or longer Mode button of
sub remote controller side.
Checking the connection.
Please stand by.
Sub RC