External Input And Output; External Input - Fujitsu AGYG09KVCA Design & Technical Manual

8. External input and output

PCB
Indoor unit

8-1. 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 connectors.
*1: The switch can be used on the following condition: DC 12 V to24 V,1 mA to15 mA.
8-1. External input
CN 23
P 190
External input
Operation/Stop
Forced stop
Forced thermostat off
—
Connected unit
Indoor unit PCB
CN 21 CN 15
CN
CN
PCB
CN 14
22 20
External output
—
Operation status
Error status
Indoor unit fan
operation status
External heater output
- 15 -
Connector Input signal
CN14
Edge
CN15
CN20/CN21/
—
CN22/CN23
PCB
1
Connector
2
(CN14/CN15)
3
8. External input and output