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8. 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
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 commercially avail-
able 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
Connector
Optional parts
• When function setting is "Operation/Stop" mode:
Input signal
Indoor unit
8-1. External input
Input
Control input
—
—
Initial setting after power is on
Auto changeover
24 °C
AUTO
Standard air direction (swing OFF)
Connected unit
Example: Switch
1
3
10 m*
Signal
Locally purchased
On
Off
Operation
Stop
Output
—
Operation status output
Error status output
Starting mode other than initial setting
• 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.
- 15 -
Remarks
See external input/output
settings for details.
Mode at previous operation
Temperature at previous operation
Mode at previous operation
Air direction at previous operation
8. External input and output
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