Fujitsu AUUH18LUAS - Page 208

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External heater output
Function
setting
External Input and
Output PCB
External output Output signal Control
Rotary switch
60-11 — Output of indoor unit CN47
Off  On Heater on
On  Off Heater off
— 2, B, C
External Input and
Output PCB
Ex OUT 3
Off  On Heater on
On  Off Heater off
Output signal Condition
Off  On Heater turns on as shown in diagram of heating temperature
On  Off
Heater turns off as shown in diagram of heating temperature
• Other than Heating mode
• Error occurred
• Forced thermo off
• Fan stop protection
Specifications of the signal output performance are as shown as follows:
Example: →hen set temperature (Ts) is set at 72°F (22°C);
• And room temperature (Tr) increase above 53.6°F (12°C), signal output is on.
• And Tr increase above 69.8°F (21°C), signal output is off.
• And Tr decrease below 66.2°F (19°C), signal output is on.
• And Tr decrease below 50°F (10°C), signal output is off.
Off
Off
On
Tr-Ts
Tr-Ts=-1.8 °F (-1 °C)
Tr-Ts=-18 °F (-10 °C)
Tr-Ts=-5.4 °F (-3 °C)
Tr-Ts=-22 °F (-12 °C)
The output also turns off in defrost operation.
3-5. Details of control output function - (05-26) - 3. External input and output (for indoor unit)
FIELD WORKING FIELD WORKING