10. External input and output
With using external input and output functions, this product can be operated inter-connectedly with
an external device.
Connector
CNA01
Control input
CNB01
CNB02
10-1. 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 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)
Circuit diagram example
Indoor unit
Communication kit
control PCB
When function setting is "Operation/Stop" mode
Input signal
Indoor unit
Input
—
Operation status output
—
Error status output
Initial setting after power is on
Auto changeover
24 °C
AUTO
Standard air direction (swing: off)
Connected unit
Example: Switch
Connector
1
3
10 m*
Optional parts
Locally purchased
On
Off
Operation
Stop
Output
—
Starting mode other than initial
Mode at previous operation
Temperature at previous operation
Mode at previous operation
Air direction at previous operation
• Contact capacity: DC 24 V or more, 10
mA or more.
• *: Make the distance from the PCB to
the connected unit within 10 m.
• Use non-polar relays and switches.
Signal
- 24 -
Remarks
See external input/output
settings for details.
setting