Fujitsu ACUH09LUAS1 Design & Technical Manual page 29

¢ External input and output PCB
The indoor unit Operation/Stop can be set by using the input terminal on the PCB.
 Input select
Use either one of these types of terminals according to the application. (Both types of terminals
cannot be used simultaneously.)
• Dry contact
In case of internal power supply, set the slide switch of SW1 to "NON VOL" side.
*1: The switches can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
• Apply voltage
In case of external power supply, set the slide switch of SW1 to "VOL" side.
*1: The switches can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
*2: Make the power supply DC 12 V to 24 V 10 mA or more.
8-1. External input
Input 1 Input 2
Connected unit
Input 1 Input 2
Connected unit
-
Power supply
- 25 -
PCB
+
1
+
2
-
C
PCB
1
2
+
C
8. External input and output