3-2. External output
• A twisted pair cable 0.33 mm
2
(22 AWG) should be used. Maximum length of cable is 25 m.
• Use an external input and output cable with appropriate external dimension, depending on the
number of cables to be installed.
• Output voltage: DC 12 V at HIGH, 0 V at LOW
• Permissible current: 50 mA
Connector Output voltage Status
CNB01
External output1 Pins 1-2
0 V Stop
DC 12 V Operation
External output2 Pins 1-3
0 V Normal
DC 12 V Error
External output3 Pins 1-4
0 V Indoor unit fan stop
DC 12 V Indoor unit fan operation
External output4 Pins 1-5
0 V Auxiliary heater off
DC 12 V Auxiliary heater on
¢ Output select
• When indicator etc. are connected directly
1
2
3
4
5
6
+
-
-
-
PCB
CNB01
Connected device 1
(Operation status)
Connected device 3
(Indoor unit fan
operation status)
Connected device 2
(Error status)
Actual number of pin might be different from the figure above.
• When connecting to unit equipped with a power supply
1
2
3
4
5
6
+
-
-
-
-
Relay
PCB
CNB01
Connected device 1
(Operation status)
Connected device 3
(Indoor unit fan
operation status)
Connected device 2
(Error status)
Connected device 4
(External heater
output)
Actual number of pin might be different from the figure above.
3-2. External output - (08-22) - 3. Indoor unit
EXTERNAL INPUT
AND OUTPUT
EXTERNAL INPUT
AND OUTPUT