10-1. External input
• “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.
¢
Indoor unit
Indoor unit functions such as Operation/Stop can be done by using indoor unit terminals.
*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 terminals according to the application. (Both types of termi-
nals cannot 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
PCB
Connected unit
+
+
-
*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
PCB
Connected unit
+-
*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.
DESIGN & TECHNICAL MANUAL
- 22 -
DUCT TYPE
ARHG72-90LHTA
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