En-14
10.2. External output
10.2.1. Wiring of connector
When installing connection cable, specified part (optional parts) must be used.
Output
Connector No.
Optional parts
Error status
CN12
External connect kit
Compressor status
CN13
External connect kit
* Make the distance from the PC board to the connected unit within 10m (33ft).
1) Power supply
• Voltage (Chart sign=Vcc) : DC 24V or less
2) Load
• Load : DC 500mA or less is recommended
1
2
Vcc
+
+
-
Vcc
1
2
CN12
CN13
Circuit diagram example
Outdoor unit control
PC board
Connected unit
(Locally purchased)
Connection
cable (option)
Signal
*10m (33ft)
Connector
Load
Power
supply
10.2.2. Error status output (CN12)
An air conditioner error status signal is produced when a malfunction occurs.
Error status
Output signal
Error
ON
Normal
OFF
10.2.3. Compressor status output (CN13)
Compressor operation status signal is produced when the compressor is running.
Compressor status
Output signal
Operation
ON
Stop
OFF
10.3. Connection method
CAUTION
Do not fix with the fan motor cable.
Do not route the connection cable overlapping with the power supply cable.
Remove the Inverter cover before work.
CN13 (Blue)
CN12 (Black)
CN10 (Yellow)
CN11 (Green)
Fix the connection cable with other wires.
Let the connection cable pass in the knock out hole.
To protect the wiring after opening a knock out hole,
remove any burrs from edge of the hole.
Be sure to install the Inverter cover after the wiring
complete.
Fan motor cable
10. EXTERNAL INPUT AND OUTPUT
Wall mounted model cannot use this function.
10.1. External input
10.1.1. Wiring of connector
ON/OFF of the “Low noise mode”, and “Peak cut mode” functions can be enabled with an
external field device.
When installing connection cable, specified part (optional parts) must be used.
Refer to section 9.2, Table. Settings List, for the required function. The function must be
set for the external input to work.
Input
Connector No.
Optional parts
Low noise mode
CN10
External connect kit
Peak cut mode
CN11
External connect kit
* Make the distance from the PC board to the connected unit within 10m (33ft).
•
Contact capacity : 24VDC or more, 10mA or more.
1
2
CN10
1
2
CN11
Circuit diagram example
Outdoor unit control
PC board
Connected unit
(Locally purchased)
Ex.) Switch
Connection cable (option)
Signal
Connector
*10m (33ft)
10.1.2. Low noise mode (CN10)
• This features reduces the operating sound of the outdoor unit from the normal
sound. The air conditioner is set to the “Low noise mode” when closing the contact
input of a commercial timer or ON/OFF switch to a connector on the outdoor control
PC board.
* Performance may drop depending on the outside air temperature condition, etc.
* Set the “Low noise mode” level, refer to “9.2. Function settings”.
Input Signal ···ON : Low noise mode
···OFF : Normal operation
Input Signal
Low noise mode
ON
ON
OFF
OFF
10.1.3. Peak cut mode (CN11)
• Operation that suppressed the current value can be performed by means of the
connected unit. The air conditioner is set to the Peak cut mode by applying the
contact input of a commercial ON/OFF switch to a connector on the outdoor control
PC board.
* Set the “Peak cut mode” level, refer to “9.2. Function settings”.
Input Signal ···ON : Peak cut mode
···OFF : Normal operation
Input Signal
Peak cut mode
ON
ON
OFF
OFF
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