National Instructional Media Institute (NIMI) creator Car A C unit text xxu Chennai National Instructional Media Institute (NIMI) 2010,c2008 monographic eng

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113 Contents : 1. Practical -identify all components ,controls and safety devices with function and specifications in a car a/c system -Compressor dismantling -Compressor & parts removal for service -Blower /Motor -Cooling coil -service of condensor -Check oil level and adding oil -Use multi meter -Check and test thermostat in direct refrigerator and test compressor without relay -Tracing the A/c wiring circuit -Leak test -NO cooling -Recovery of refrigerant from the system using passive method-The cherge migration method -Evacuation & Gas Charging -Troubleshoot and repair auto/car a/c system for the symptom "No Cooling " -Trouble shooting '(Sub symptom compressor problem ) noisy 2.Theory -Safety -Refrigerants & oils -Identification of compressor -Identification of mechanical devices used in car air conditioning unit -Identification of control devices of car air-conditioning unit -Function of car air condition system -Type of current -measuring voltage and current using multi meter -Electrical part of an air conditioning in car -Inspection of the car Air conditioning system -Recovery -Evacuation of the Refrigeration system -Charging Refrigerant in a system -Performance of Auto A/c System Maintenance 3.Assignment & Test Refrigeration & Air Conditioning : MES 629.2772 REP MES49 National Instructional Media Institute (NIMI) BSDU 170710 20190501160350.0 English