Fujitsu AMUG24LMAS, Service Manual

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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
2
C
Input 1 Input 2
PCB
Connected unit
+
+
-
*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
2
C
Input 1 Input 2 Power supply
PCB
Connected unit
+ -
*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.
4-1. External input
- (05-22) -
4. External input and output
FIELD WORKING FIELD WORKING