Haier EK Series Service Manual

'RPHVWLF $LU &RQGLWLRQHU)XQFWLRQV DQG &RQWURO5ˊFunctions and control5.1 main functions and control specificationsIncluding brief introduction to air conditioners of series models and electric control function.5.1.1 Automatic runningAutomatic running modeWhen the running mode is turned to automation after starting the system, the system will first determinethe running mode according to the current room temperature and then will run according to the determinedmode. Tr in the following selection conditions means room temperature, Ts means setting temperature, Tpmeans temperature of indoor coil pipea. Tr23 runningć cooling modeb. Tr<23 running 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 the automaticconversion between cooling mode and heating mode must be conducted after 15 minutes.5.1.2 Indoor temperature controlTemperature control range : 16ć—30ćTemperature control precision: r1ćCompressor can’t be controlled by temperature sensor within 2 minutes after it starts5.1.2.1 Cooling mode:When Tr> Ts, outdoor fan motor and compressor on, and indoor fan motor run at fixed wind speed. When Tr Ts, outdoor fan motor and compressor off, and when Tr > Ts, outdoor fan motor and compressor are workingagain .If Tr=Ts, the indoor fan motor , outdoor fan motor and the compressor’s state will not change.5.1.2.2 Heating mode:When Tr d Ts, compressor, four-ways valve and outdoor fan motor is on, indoor fanmotor runs as in cold blast avoidance mode, and 4ćof compensation is added after compressor is started.When Tr>Ts+5ć, compressor is off, and the indoor fan motor runs as in cold blast avoidance mode.When Trć, compressor, four-ways valve and outdoor fan motor is on, and the indoor fan motor runsas in the mode of avoiding cold blast.5.1.3 Cooling run mode:temperature control range :16ć—30ćtemperature control precision: r1ćcompressor can’t be controlled by temperature sensor within 2 minutes after it starts.control character: when Tr t Ts, outlet air from compressor is on and indoor fan motor run at fixedwind speed. When Tr Ts, outlet air from compressor is off , and when Tr > Ts, outlet air from compressoris on.wind speed control: (the temperature difference is 1ć)auto: when Tr>=Ts+3ć, the wind speed is high;When Ts+1ćdTr Ts+3ǂ ć, the wind speed is medium.When Tr Ts+1ǂ ć, the wind speed is low.When temperature sensor is off, the fan motor runs at low speed.when the wind speed changes from low to high, there is no delay, and when it changes from high tolow, there is a 3-minutes delay before conversion.+6818HEK03Все каталоги и инструкции здесь: http://splitoff.ru/tehn-doc.html