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 terminals
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.
- 167 -
11-4. Ceiling type
11. External input and output
4-5 UNIT
MULTI-SPLIT TYPE
4-5 UNIT
MULTI-SPLIT TYPE
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