Panasonic U-4LE2E5 Service Manual & Test Run Service Manual

Also see for S-106MF2E5A: Installation instructions Installation instructions Installation instructions Installation instructions Operating instructions

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Panasonic U-4LE2E5 Service Manual & Test Run Service Manual Manual pdf 61 page image

2 - 7Mini VRF SYSTEMControl Functions - Indoor Unit26. Automatic Heating / Cooling Control6. Automatic Heating / Cooling ControlControl temp. for cooling 22˚C * 20°C (temperature set) + 2°C (*3)* 20°C (temperature set) – 2°C (*3)Remote controller display 20˚CControl temp. for heating 18˚COperating mode change Shifted set temp.Heating → Cooling 20 + 2 (*3) + 0.5 = 22.5°C or higher (*2)Cooling → Heating 20 – 2 (*3) – 1.0 = 17°C or lower12This function is only valid as long as one indoor unit is installed within one refrigerant system or all indoorunits are controlled within a group control.When operating in a group control, the sub-indoor units become the same operation mode of the main unit.As for the indoor units in a group control, install them in the same air conditioning circumstances.Use the temperature sensor which is built-in sensor of the indoor unit.*2: Dur*3: Correction temp. is different depending on the model.See the right column [ Indoor item code "1E" ] under the section “14. Parameter”.ing heating operation when the body sensor is used, a temperature shift is applied to the intake temperaturedetected by the sensor, in consideration of the difference in temperature at the top and bottom of the room.(Refer to the “Room Temperature Control” item.) If this intake shift temperature is 4°C, then the heating coolingchange occurs when the temperature detected by the body sensor is 26.5°C or higher.4 Cooling (heating) operation does not change if the room temperature changes from area C A (or A C) within 10minutes after the compressor turns OFF. (Monitoring mode is excepted.)5 When the heating/cooling changeoccurs, the 4-way valve switchesapproximately 30 to 50 secondsafter the compressor turns ON. Control temp. for coolingControl temp. for heatingSelected operating modeSelected operating modeRemote controller display–2 deg–1 deg+1 deg+3 deg+2 deg+2.5 deg–3 degThermostat ON ONOFF ONOFF ON ONOFF ON OFFOFFABCHeatingHeating Cooling1 When operation starts, heating or cooling is selected according to the set temperature and the room temperature.Room temperature Set temperature + 1 CoolingSet temperature – 1 < Room temperature Set temperature + 1 Monitoring mode (*1)Room temperature < Set temperature – 1 Heating*1: If the difference between the room temperature and set temperature is small when operation starts, the coolingthermostat remains in standby status (OFF) until the temperature difference increases. When the temperaturedifference increases, either cooling operation or heating operation is selected. This standby status is known as“monitoring mode.”2 After operation starts in the selected operating mode, the set temperature is automatically shifted by +2°C (*3) (coolingoperation) or –2°C (*3) (heating operation).Example: Temperature set on the remote controller is 20°C.3 Operating mode changes (heating cooling, cooling heating) which occur during operation as a result oftemperature changes are handled as shown below.Heating cooling: Room temperature Shifted set temperature (set temperature + 2°C (*3)) + 0.5°CCooling heating: Room temperature Shifted set temperature (set temperature – 2°C (*3)) – 1.0°CExample: Temperature set on the remote controller is 20°C.