8. External input and output
With using external input and output functions, this product can be operated inter-connectedly with
an external device.
Connector
Input
Output
Remarks
CNA01
Control input
—
See external input/output
settings for details.
CNB01
—
Operation status output
CNB02
—
Error status output
8-1. 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
Initial setting after power is on
Starting mode other than initial setting
Operation mode
Auto changeover
Mode at previous operation
Set temperature
24 °C
Temperature at previous operation
Airflow mode
AUTO
Mode at previous operation
Air direction (swing)
Standard air direction (swing OFF)
Air direction at previous operation
•
Circuit diagram example:
Signal
Locally purchased
Indoor unit
control PCB
Communication kit
Optional parts
Connector
1
3
10 m*
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.
• Use non-polar relays and switches.
•
When function setting is “Operation/Stop” mode:
Operation
Stop
On
Off
Input signal
Indoor unit
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8-1. External input
8. External input and output
WALL MOUNTED
ASYG18, 24KMTA
WALL MOUNTED
ASYG18, 24KMTA