what do I need to work with a ARYG54 duct type with switchbox
Indoor units has built-in external input, but you can only ON or OFF the unit.
If you want to send the signal with a few parameters (MODE, SET TEMPERATURE, FAN SETTING) you need to use External Switch Controller (UTY-TERX).
This option include two independent inputs which you can configure freely.
So you can set up that:
• INPUT 1 → open → SCENE 1
• INPUT 1 → close → SCENE 2
• INPUT 2 → open → SCENE 3
• INPUT 2 → close → SCENE 4
This option is connected to REMOTE CONTROLLER port at indoor unit.