Indoor unit fan operation status
Function setting External output Output signal Command
60—10 CN47
Low → High Fan run
High → Low Fan stop
Output signal Condition
On
The indoor unit fan is operating.
Low → High
Off
The fan is stopped or during cold air prevention.
During thermostat off when in dry mode operation.
High → Low
Fan run
Fan stop
High
Low
CN47
Indoor unit
Ex
ternal heater output
Function setting External output Output signal Command
60—11 CN47
Low → High Heater on
High → Low Heater off
Output signal Condition
Low → High
Heater turns on as shown in diagram of heating temperature
Off → On
High → Low
Heater turns off as shown in diagram of heating temperature
• Other than Heating mode
•
Error occurred
On → Off
• 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.
Off
Off
O
n
Tr-Ts
Tr-Ts=-1 °C
Tr-Ts=-10 °C
Tr-Ts=-3 °C
Tr-Ts=-12 °C
The output also turns off in defrost operation.
- 134 -
6-1. Indoor unit 6. External input and output
SYSTEM
DESIGN
SYSTEM
DESIGN
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