Fujitsu AUXG18LRLB Technical Manual page 70

 External heater output
Function Rotary SW of External
setting / input and output PCB
60-11 / D
60-00 / 2
60-09 / B
60-10 / C
Output signal
Low → High
Heater turns on as shown in diagram of heating temperature
Off → On
Heater turns off as shown in diagram of heating temperature
• Other than Heating mode
High → Low
On → Off • Error occurred
• Forced thermo off
• Fan stop protection
Specifications of the signal output performance are as shown as follows:
Example: When 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.
External output
Output of indoor unit
External input and output
PCB
Off
Tr-Ts=-1°C
On
Tr-Ts=-10°C
Off
- 64 -
Output
Low → High
CN47
High → Low
Off → On
Output 3
On → Off
Condition
Tr-Ts
Tr-Ts=-3°C
Tr-Ts=-12°C
Command
signal
Heater on
Heater off
Heater on
Heater off