Function of FFQ Series SiUS121502E56 Function and Control2.2 Thermostat Sensor in Remote ControllerOutline Temperature is controlled by both the thermostat sensor in remote controller and air suctionthermostat in the indoor unit. (This is however limited to when the field setting for the thermostatsensor in remote controller is set to Use.)Cooling If there is a significant difference in the set temperature and the suction temperature, fineadjustment control is carried out using a body thermostat sensor, or using the sensor in the remotecontroller near the position of the user when the suction temperature is near the set temperature. Assuming the set temperature in the figure above is 24°C (75.2°F), and the suctiontemperature has changed from 18°C (64.4°F) to 30°C (86°F) (A → F):(This example also assumes there are several other air conditioners, and the suction temperaturechanges even when the thermostat sensor is off.)18 → 23°C (64.4 → 73.4°F) (A → C): Body thermostat sensor is used.23 → 27°C (73.4 → 80.6°F) (C → E): Remote controller thermostat sensor is used.27 → 30°C (80.6 → 86°F) (E → F): Body thermostat sensor is used. Assuming suction temperature has changed from 30°C (86°F) to 18°C (64.4°F) (F → A):30 → 25°C (86 → 77°F) (F → D): Body thermostat sensor is used.25 → 21°C (77 → 69.8°F) (D → B): Remote controller thermostat sensor is used.21 → 18°C (69.8 → 64.4°F) (B → A): Body thermostat sensor is used.Range in which thermostat sensorin remote controller can be usedRange in which bodythermostat sensor canbe usedDifferentialSuction temperature (TH1)(R18811)Set temperature (Ts)12 14 16 18 20 22 24 26 28 30 32 3453.6 57.2 60.8 64.4 68.0 71.6 75.2 78.8 82.4 86.0 89.6 93.2°C°F°C323028262422201816°F89.686.082.478.875.271.668.064.460.8TH1 = Ts + 1 (°C)TH1 = Ts + 1.8 (°F)TH1 = Ts + 3 (°C)TH1 = Ts + 5.4 (°F)TH1 = Ts – 3 (°C)TH1 = Ts – 5.4 (°F)TH1 = Ts – 1 (°C)TH1 = Ts – 1.8 (°F)
