Haier AS09/12GS2ERA Service Manual
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Contents
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Domestic Air Conditioner5.Funcitions and Control5.1 Main functions and control specification of indoor unit5.1.1 Automatic operationWhen the running mode is turned to automation after starting the system, the system will firstdetermine the running mode according to the current room temperature and then will run according tothe determined mode. Tr in the following selection conditions means room temperature, Ts meanssetting temperature, Tp means temperature of indoor coil pipeTr23 Choose Cooling ModećTr˘23 Choose Heating ModećAfter turning to the automation mode, the running mode can be switched between cooling mode, fanmode and heating mode according to the change of the indoor ambient temperature. But theautomatic conversion between cooling mode and heating mode must be conducted after 15 minutes.5.1.2 Cooling operation modeTemperature control range: 16ć---30ćTemperature difference: " 1ć* Control features: When Tr˄input airflow˅>Ts˄set temperature˅ , the compressor will be opened,thećindoor fan will operate at the set speed and the mode signal will be sent to the outdoor system. WhenTr˄input airflow˅" Ts˄set temperature˅ , the compressor will be opened,the indoor fan will operatećat the set speed and the mode signal will be sent to the outdoor system. The system will keep theoriginal status if Tr= Ts.Airflow speed control: (temperature difference 1 )ćAutomatic: When Tr>=Ts+3 , high speed.ćWhen Ts+1 = |
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