External Output - Fujitsu AOU48RLXFZ1 Installation Manual

101 31

External output

101 31 11 Wiring of connector
When installing connection cable, specified part (optional parts) must be used.
Output
Error status
Compressor status
* 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
101 31 21 Error status output (CN951)
An air conditioner error status signal is produced
when a malfunction occurs.
101 31 31 Compressor status output (CN952)
Compressor operation status signal is produced
when the compressor is running.
101 31 41 Base heater
A Base heater is a heating element that may be installed to melt the ice that may accumulate in the
condenser, drain pan.
When installing connection cable, specified part (optional parts) must be used.
This output signal is produced when the outdoor temperature drop down to 2°C (36°F), and releases at
4°C (39°F).
P.C.B
1
2
CN206
3
4
Connector
*1
*1: Connect to pin 1 and pin 3. No connection pin 2 and pin 4.
*2: The allowable power consumption is 25W or less.
*3: If a load greater than 25W is applied, a contactor or relay should be used to operate and control the
base heater.
Connector
CN951
CN952
Circuit diagram example
connected unit
Base heater
AC240V
*2
Circuit diagram example
Outdoor unit
Connection
control PC board
cable
Connector
+
1
CN951
2
1
CN952
*10m (33ft)
2
Error status
Error
Normal
Output signal
ON
OFF
Comressor status
Operation
Stop
Output signal
ON
OFF
P.C.B
1
2
AC240V
CN206
3
4
Connector
*1
Connected unit
(Field supply)
Vcc Vcc
Power
supply
+
Load
-
Signal
connected unit
Base heater
*3
En-37