External Input And Output; External Input - Fujitsu ASU12RLS3Y Design & Technical Manual

9. External input and output

With using external input and output functions, this product can be operated inter-connectedly with
an external device.
Connector
CNA01
CNB01
CNB02

9-1. External input

With using external input function, some functions on this product can be controlled from an external
device.
• "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 492 ft (150 m).
• The wire connection should be separate from the power cable line.
¢ Control input (Operation/Stop or Forced stop)
The air conditioner can be remotely operated by means of the following on-site work.
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)
9-1. External input
Input
Control input
— Operation status output
—
Initial setting after power is on
Auto changeover
75 °F (24 °C)
AUTO
Standard air direction (swing: off)
Output
—
Error status output
Starting mode other than initial setting
Temperature at previous operation
Air direction at previous operation
- 21 -
Remarks
See external input/output
settings for details.
Mode at previous operation
Mode at previous operation
9. External input and output