Fujitsu AOUH18LMAS1, Service Manual

Page: 188 / 215

¢ External input and output PCB
The indoor unit Operation/Stop can be set by using the input connector on the PCB.
• Input select:
Use either one of these types of connectors according to the application. (Both types of connec-
tors cannot be used simultaneously.)
– Dry contact
In case of internal power supply, set the slide switch of S→301 to "NON VOL" side.
1
2
3
Input 1
PCB Connected unit
*
+
-
1
2
3
Input 2
*
+
-
Connector
(CN313)
Connector
(CN314)
*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 S→301 to "VOL" side.
1
2
3
Input 1
Power supply
PCB
Connected unit
*
*
*2
+ -
1
2
3
Input 2
Connector
(CN313)
Connector
(CN314)
*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 to 24 V, 10 mA or more.
2-1. External input
- (05-14) -
2. External input and output
FI
EL
D
W
O
R
K
IN
G
FI
EL
D
W
O
R
K
IN
G