AIR CONDITIONER - Heronhill Air Conditioning Ltd

7. OPERATION DESCRIPTIONFILE NO. SVM-050207-1. Outline of Air Conditioner ControlThis is a fixed capacity type air conditioner, which usesAC motor for an indoor fan. The AC motor drivecircuit is mounted in the indoor unit. And electricalparts which driving the compressor and the outdoorfan motor, are mounted in the outdoor unit.The air conditioner is controlled by the controllermounted in the indoor unit. The controller operates allcomponents based on the commands transmitted fromthe remote control and the feedback data of the sensoris as follow:• The temperature measurement at the air inlet ofthe indoor heat exchanger by the indoortemperature sensor•The temperature measurement at the indoorheat exchanger by the indoor heat exchangertemperature sensor• Indoor fan motor operation control• Louver motor control• LED display control• Outdoor fan motor operation control• 4-WAYS-VALVE operation control(Heat pump model only)• Compressor operation control• Receiving the information of the operationstatus and judging the information or theindication of errors7-1-1. Louver control(1) Vertical air flow louverPosition of veritcal air flow louver is automaticallycontrolled according to the operation mode.Besides, position of vertical air flow louver can bearbitrarily set by pressing [FIX] button.The louver position which is set by [FIX] button isstored in the microcontroller, and the louver isautomatically set at the stored position for the nextoperation.(2) SwingIf [SWING] button is pressed when the indoor unitis in operation, the vertical air flow louver startsswinging. When [SWING] button is pressed again,it stops swinging.7-1-2. Indoor fan control (AC Fan motor)(1) The indoor fan is operated by the stepless speedchange AC motor.(2) For air flow level, speed of the indoor fan motor iscontrolled in five steps (LOW, LOW + , MED, MED +and HIGH). If AUTO mode is selected, the fanmotor speed is automatically controlled by thedifference between the preset temperature andthe room temperature.Table 7-1-1LOW + =MED + =FAN TAPLOW+MED2MED+HIGH2Cooling UH H M L L- UL SLOPERATION Fan only H M L L-MODEDry M L L- UL SLHeat UH H M L L- UL SLRAS-07UK Seriesrpm 1350 1300 1200 1050 1000 950 900 800 750 700 650Air flow volume (m 3 /h) 650 630 570 490 460 430 400 340 310 280 250RAS-10UK Seriesrpm1350 1300 1250 1050 1000 950 900 800 750 700 650Air flow volume (m 3 /h) 650 630 610 490 460 430 400 340 310 280 250ModelRAS-10UKH SeriesRAS-13UK SeriesrpmAir flow volume (m 3 /h)rpmAir flow volume (m 3 /h)1300 1250 1200 1100 1000 900 800 750 700 650630 610 570 520 460 400 340 310 280 2501350 1300 1150 1100 1050 1000 950 900 850 800 750650 630 550 520 490 460 430 400 370 340 310700280RAS-13UKH SeriesrpmAir flow volume (m 3 /h)1350 1300 1150 1100 1050 1020 950 900 850 800 750650 630 550 520 490 470 430 400 370 340 310700280− 26 −