National Instructional Media Institute (NIMI) <br/><br/>
Basic Refrigeration – II : Sector Refrigeration & Air Conditioning (For Centres of Excellence) 

 - Chennai  National Instructional Media Institute   2013,c2008 
 - 92 
<br/><br/>Contents :<br/><br/>Practical <br/>-Strip out components from frost free refrigerator <br/>-Check electrical wiring in frost free refrigerator <br/>-Check and test defrost heater <br/>-Check and test Timer and thermostat in frost free refrigerator <br/>-Retroit CFC filled domestic Refrigerator with HFC’s <br/>-Retroit CFC filled domestic Refrigerator with Hidro Carbon refrigerant <br/>-Repair /Service of  HFC filled domestic  refrigerator <br/>-Repair /Service Hydrocarbon filled Domestic refrigerator<br/>-Dismantle window Air – conditioner <br/>-Identify and inspect the parts of window A/c <br/>-Check and service the components of window a/c <br/>-Check relative humidity of conditoned room <br/>Service and assemble window A/c <br/>-Check and service A/C blower motor <br/>-Leak test in  window A/C<br/>-Clean & flush contamination in condenser and evaporator<br/>-Service air cooled condenser in window A/c <br/>-Practice of removal and replacement of capillary tube in room A/c <br/>-Check electrical wiring of window a/c by CSR circuit<br/>-Test compressor without relay in CSR circuit <br/>-Check electrical wiring of window A/c by PSC method <br/>-Dry Service of windos A/C<br/>-Leak test in condensor with pressur raise method <br/>-Leak test in evaporator with Vaccum Method <br/>-Braze the leak spots in window A/C <br/>-Immersion method for leak test <br/>-Evacute hermetic system in room air conditioners<br/>-Charge gas in room Air -Conditioner <br/>-Measure the velocity of air flow and tempressure of room A/C <br/>-Troubleshoot and repair for the symptom “Compressor does not starts “<br/>-Troubleshoot and repair for the symptom “Compressor trips frequently“<br/>-Troubleshoot and repair for the symptom “ Poor cooling “ and for the sub symptom “Evapourator coil frosing“<br/>-Troubleshoot and repair for the symptom “Poor cooling “ and for the sub symptom “Unit running continuously “<br/>-Troubleshoot and repair for the symptom “Water leakage in indoor unit “<br/><br/>Theory <br/>-Study of Frost free Refrigerators <br/>-Refrigeration system of Frost free Refregerators<br/>-Electrical components and their functions in a Frost free Refregerator <br/>-Study of wiring ,Automatic defrost ,heater , Timer fan motor and air duct system <br/>-Methodology of Retrofitting <br/>-Details of CFC filled refrigerator with Hydro Carbon blend<br/>-Refregerators using diffirent refrigerants <br/>-Introduction of Air -conditioning<br/>-Constructional details of window Air – conditioner <br/>-Air – Conditioning System <br/>-Air – Conditioning System <br/>-Electrical components of window air -conditioner<br/>-Split Air- conditioners <br/>-Split air – conditional and its constructional details<br/>-Comparision ,advantage and disadvantage of split A/c & Window A/C <br/>Air cooled condensers <br/>-Constructional details and selection of air cooled condensers <br/>-Air filters ,their types and specification <br/>-Air flow Measurements <br/>-Velocity meters <br/>-Principle of pipe sizing <br/>-Study of service valves <br/>-Defective window model Room Air – Conditioner - “Compressor does not start “<br/>-Defects in windos model Air -Conditioner -”Compressor trip frequetly “<br/>-Defects in window air -conditioner -”Poor cooling “ Evaporate coil frosting <br/>-Defects in window air -conditioner -”Poor cooling “ - unit runnig continuosly <br/>-Defects in Split type  air -conditioner - ’’water leakage in indoor unit ’’ 
<br/><br/><label>ISBN: </label>COE27 
<br/><br/><label>Publisher. No.: </label> National Instructional Media Institute (NIMI) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Refrigeration & Air Conditioning : Centres of Excellence<br/>Refrigeration
<br/><br/><label>Dewey Class. No.: </label>621.58  / BAS