External Input And Output; External Input - Fujitsu ARHG24LMLA Design & Technical Manual

8. External input and output

Connector
CN102 Control inpt (Operation/Stop)
CN103
CN6
CN10

8-1. External input

¢ Control input (Operation/Stop or Forced stop)
The air conditioner can be remotely operated by means of the following on-site work.
"Operation/Stop" mode or "Forced stop" mode can be selected with function setting of indoor unit.
Unit operation is started at the following contents by adding the contact input of a commercial
on/off switch to a connector on the external control PCB and turning it on.
Unit operation
Operation mode
Set temperature
Airflow mode
Air direction (swing)
 Circuit diagram example
Indoor unit
control PCB
Connector
1
(–)
3
(+)
• When function setting is in "Operation/Stop" mode
Input signal
Indoor unit
Remote controller
Input
— Operation status output
— Fresh air control output
— Auxiliary heater output
Initial setting after power is on
Auto changeover
24 °C
AUTO
Standard air direction (swing OFF)
Connected unit
Example: Switch
• Contact capacity: DC 24 V or more, 10 mA or more.
• *: Make the distance from the PCB to the connected
unit within 10 m.
*10 m
• Use non-polar relays and switches.
Signal
Locally purchased
On
Off
Operation
Stop
- 16 -
Output
—
See external input/output
settings for details.
Starting mode other than initial
setting
Mode at previous operation
Temperature at previous operation
Mode at previous operation
Air direction at previous operation
On
Remarks
On On