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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 should be used. Maximum length of cable is 150 m.
• Use an external input and output cable with appropriate external dimension, depending on the
number of cables to be installed.
• The wire connection should be separate from the power cable line.
Indoor unit
Indoor unit functions such as Operation/Stop can be done by using indoor unit terminal.
*1: The switch can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
External Input and Output PCB
The indoor unit Operation/Stop can be set by using the input terminal on the PCB.
• Input select
Use either one of these types of terminal according to the application. (Both types of terminal can-
not be used simultaneously.)
– Dry contact
In case of internal power supply, set the slide switch of SW1 to "NON VOL" side.
Input 1 Input 2
Ex IN
Connected device
*1 *1
+
+
-
*1: The switches can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
– Apply voltage
In case of external power supply, set the slide switch of SW1 to “VOL” side.
Input 1 Input 2 Power supply
Ex IN
Connected device
*1 *1
*2
+-
*1: The switches can be used on the following condition: DC 12 V to 24 V, 1 mA to 15 mA.
*2: Make the power supply DC 12 V to 24 V, 10 mA or more.
- 187 -
12-1. Compact cassette type, Medium static pressure duct type (ARXH22KMTAP), and
Ceiling type
12. External input and output
4-5 UNIT
MULTI-SPLIT TYPE
4-5 UNIT
MULTI-SPLIT TYPE
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