In cooling / heating automatic operation, the unit is controlled as shown below based on set “differential value”. Factory setting of differential valve is 5°C. As to charging method of setting value, refer to page 43 and page 44.
Cooling/Heating Differential: at 5°C
Cooling/Heating Differential: at 3°C
Cooling/Heating Differential: at 0°C
In order to prevent hunting in cooling / heating:
After cooling operation thermostat turns off, if the temperature does not reach setting temperature –2°C, heating operation should not be on.
After heating operation thermostat turns off, if the temperature does not reach setting temperature +3°C, cooling operation should not be on.
