Fujitsu ASU30RLE Service Instruction page 99

3-3. EXTERNAL INPUT AND OUTPUT
Indoor unit PCB
PCB External input
Operation/Stop
Forced stop
Indoor unit
Operation/Stop
Forced stop
Forced thermostat off
External input
and output
(UTY-XCSXZ1)
3-3-1. External input
"Operation/Stop" mode or "Forced stop" mode can be selected with function setting of indoor unit.
A twisted pair cable (22AWG) should be used. Maximum length of cable is 492ft (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 terminals.
Connected unit
*1: The switch can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
CN2 (Ext. in)
CN3 (Ext. out)
CN6
(Ext. in/out PCB)
External output Connector Input select
-
Operation status
Error status
Indoor unit fan
-
operation status
Set point
attainment status
-
Operation status
Error status
-
Indoor unit fan
operation status
External input and output PCB
SW301
CN314
CN313
CN312
CN311
CN310
CN2 Dry contact
-
CN3
CN313/
Dry contact/
CN314
Apply voltage
CN313
CN310
CN311
-
CN312
03-10
SW302 Rotary switch
CN308
External
Input
connect kit
signal
(Optional parts)
Edge
-
UTY-XWZXZ3
Edge/Pulse
Edge
-
PCB
1
Connector
2
(CN2)
3
-
-
-