Fujitsu ARXG24KMLA Design & Technical Manual page 61

¢ Indoor unit fan operation status
Function setting
60—10
Output signal
On
Low → High
Off
High → Low
¢ External heater output
Function setting
60—11
Output signal
Low → High
Off → On
High → Low
On → Off
Specifications of the signal output performance are as shown as follows:
Example: W hen set temperature (Ts) is set at 22 °C;
• And room temperature (Tr) increase above 12 °C, signal output is on.
• And Tr increase above 21 °C, signal output is off.
• And Tr decrease below 19 °C, signal output is on.
• And Tr decrease below 10 °C, signal output is off.
The output also turns off in defrost operation.
8-4. Details of function
External output
CN47
The indoor unit fan is operating.
The fan is stopped or during cold air prevention.
During thermostat off when in dry mode operation.
Fan run
Indoor unit
Fan stop
High
CN47
Low
External output
CN47
Heater turns on as shown in diagram of heating temperature
Heater turns off as shown in diagram of heating temperature
• Other than Heating mode
• Error occurred
• Forced thermo off
• Fan stop protection
Tr-Ts=-1 °C
Tr-Ts=-10 °C
- 55 -
Output signal
Low → High
High → Low
Condition
Output signal
Low → High
High → Low
Condition
Tr-Ts
Off
Tr-Ts=-3 °C
On
Tr-Ts=-12 °C
Off
Command
Fan run
Fan stop
Command
Heater on
Heater off
8. External input and output