External Input - Fujitsu AUUH18LUAS Service Manual

3-1. External input

• "Operation/Stop" mode or "Forced stop" mode can be selected with function setting of indoor unit.
• A twisted pair cable (22 A→G) should be used. Maximum length of cable is 492 ft (150 m).
• Use an external input and output cable with appropriate external dimension, depending on the
number of cables to be installed.
• The wire connection should be separate from the power cable line.
¢ Indoor unit
Indoor unit functions such as Operation/Stop can be done by using indoor unit terminal.
*1: The switch can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
¢ 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 terminal according to the application. (Both types of terminal can-
not be used simultaneously.)
– Dry contact
In case of internal power supply, set the slide switch of S→1 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 S→1 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.
3-1. External input
*1 *1
Input 1 Input 2
Connected device
*1 *1
Input 1 Input 2
Connected device
-
Power supply
*2
- (05-15) -
Terminal
1
2
Ex IN
+
1
+
2
-
C
Ex IN
1
2
+
C
3. External input and output (for indoor unit)