Refrigeration & Air-conditioning Trade Print E-mail

Week

Theory

1st Day

2nd Day

3rd Day

4th Day

5th Day

6th Day

Practical

Class 1

Class 2

Class 3

Class 4

Class 5

Class 6

1

Theory

Introduction to Refrigeration & Air Condition Unit,s heat, temperature & pressure.

Knowledge about         refrigeration fittings.

Knowledge about          copper tube.

Knowledge about           copper tube.

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Practical

Identification of common hand tool, measuring tool, special tools and materials uses in refrigeration and air conditioning works.

Identify of refrigeration fitting of different type of tube sizes.

Copper tube cutting, flaring, Soldering & Swaging practice.

Copper tube cutting,   " T " Joint, Flair             face & brazing                     practice.

Copper tube cutting,    " L " Joint, "X" Joint     flair face & brazing              practice.

Copper tube cutting,    "U" Joint, Charging Line Flair face & brazing practice.

Class 7

Class 8

Class 9

Class 10

Class 11

Class 12

2

Theory

Details Knowledge about refrigeration cycle.

Knowledge about analog and digital AVO Meter, ampere meter.

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Knowledge about Electricity, current, voltage, and Resistance.

Introduction to Electrical circuit, series Ckt, Parallel Ckt.

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Practical

Demonstration on operation of refrigeration cycle.

Application and use of analog & digital AVO meter, Amper meter, Multi meter, compound & High pressure gauge.

Application and use of analog & digital Multi meter, compound & High pressure gauge.

Measurement practice of voltage, current and resistance.

Series and parallel Ckt connection practice. To find out the voltage drop of effect through series.

Electrical circuit of Test Board, Tube light two way switch, Calling bell connection practice.

Class 13

Class 14

Class 15

Class 16

Class 17

Class 18

3

Theory

Knowledge about single phase motor.

Knowledge about star and delta connection of three phase motor and magnetic contractor.

Knowledge about refrigerator compressor.

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Practical

Identification of terminal compressor motor.

Motor starting without   relay with relay & capacitor.

Demonstration on magnetic connection.

Star delta connection of   3 phase motor.

Identification of compressor parts.

Compressor dome cutting.

Class 19

Class 20

Class21

Class 22

Class 23

Class 24

4

Theory

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Practical

Charging oil, checking pumping and motor condition.

Checking procedure relay, OLP, capacitor Thermostat.

Checking procedure Identify the electrical components of refrigeration and air conditioning.

Frost type refrigerator Wiring practice.

Frost type refrigerator Wiring practice.

Checking wiring of auto defrost refrigerator, Demonstrate starting the refrigerator.

Class 25

Class 26

Class 27

Class 28

Class 29

Class 30

5

Theory

Identification on non frost Refrigerator.

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Knowledge about refrigerator timer.

Knowledge about defrost thermostat.

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Practical

Identify the electrical Components used in non-frost refrigerator.

Demonstration of the function on non frost Refrigerator.

Checking procedure components of non frost refrigerator and timer setting.

Checking and testing heater, defrost Thermostat, thermal Fuse, Drain Heater, Lamp, fan switch.

Non frost refrigerator Electrical wiring practice.

Non frost refrigerator Electrical wiring practice.

Class 31

Class 32

Class 33

Class 34

Class 35

Class 36

6

Theory

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Practical

Checking electrical wiring of a non frost  refrigerator. Demonstration starting the refrigerator.

The function of compressor, expention device and evaporator.

Classification of condenser,expention device and evaporator.

Checking leak in a  refrigerator repair leak if find. Evacuate and charge refrigerator procedure.

Checking leak in a  refrigerator repair leak if find. Evacuate and charge refrigerator procedure.

Classification of refrigeration of refrigerant, Difference between CFC, HCFC, and HFC.

Class 37

Class 38

Class 39

Class 40

Class 41

Class 42

7

Theory

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Practical

Checking procedure refrigerant  in a frost type refrigerator.

Checking procedure refrigerant in a non frost  refrigerator.

Troble,causes of troubles and remedies of troubles of frost type  refrigerator.

Troble,causes of troubles and remedies of troubles of frost type  refrigerator.

Troble,causes of troubles and remedies of troubles of frost type  refrigerator.

Referinr               frost & non frost            refrigerator.

Class 43

Class 44

Class 45

Class 46

Class 47

Class 48

8

Theory

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Practical

To lest leak on a chest type freezer, repair, the leak if any. Evacuate and charging appropriate refrigerator.

Repairing of door         switch, Lamp               holder and door                  seal.

Repairing of copressure coulling               fan.

Refiner 0f compressor.

Troble,causes of troubles and remedies of troubles of chest type  freezer.

Troble,causes of troubles and remedies of troubles of chest type  freezer.

Class 49

Class 50

Class 51

Class 52

Class 53

Class 54

9

Theory

Knowledge about water cooler.

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Practical

Identify the electrical   components uses on        water cooler.

Water cooler                  electrical                     wiring practice.

Check cooling and automatic operation. Factors to be considered for insidered and operation.

Leck test, evacuating and refrigernt charging in a water cool.

Leck test, evacuating and refrigernt charging in a water cooler.

Troble,causes of troubles and remedies of troubles of water cooler.

Class 55

Class 56

Class 57

Class 58

Class 59

Class 60

10

Theory

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Practical

Identify the electrical components uses in beverage cooler.

Identify the different ctype of  beverage cooler.

To checking Electrical Wiring of a  beverage cooler starting procedure of  beverage coller.

To check couling and automatic operation check ampier and voltage

late check evacuating             and   refrigerent,charge in a beverage cooler

late check evacuating and refrigerent,charge in a beverage cooler

Class 61

Class 62

Class 63

Class 64

Class 65

Class 66

11

Theory

knowledge about window type air condition

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Practical

Identification the electrical components of a window type air Conditioner.

To check selector Switch and High, Low, Medium, compressor and line point Find out.

To check              Blower motor         Check Resistance.

Two check               compressor motor,     capacitor, and             potential Relay.

Operated window type Ac for operation, check tche effect of voltage, cooling and correct operation. Test for thermostat.

Operated window type Ac for operation, check tche effect of voltage, cooling and correct operation. Test for thermostat.

Class 67

Class 68

Class 69

Class 70

Class 71

Class 72

12

Theory

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Practical

Tow check Wirning of    window type                     A.C         Startingthewindow       type A.Check                 Amper.

Leak test, evacuating and refrigerant charge window type AC.

Repairing of            blower motor.

Repairing of              compressor                     Motor.

Troubles, causes of Troubles and remedies of Troubles of window type AC.

Troubles, causes of Troubles and remedies of Troubles of window type AC.

Class 73

Class 74

Class 75

Class 76

Class 77

Class 78

13

Theory

Knowledge about split air conditioner.

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Practical

Identify the component of split AC about specification.

Circuit to check for cooling capacity, FLA, voltage and other information.

Ampere checking starting & running time.

To check the electrical wiring of split type AC. Starting procedure.

To check the electrical wiring of split type AC. Starting procedure.

Controlling of split           AC by remote             Controller.

Class 79

Class 80

Class 81

Class 82

Class 83

Class 84

14

Theory

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Practical

To check the electrical wiring of split type AC 2(1.5 ton) capacity Starting the split AC.

To check the electrical wiring of split type AC indoor and outdoor unit.

Demonstration of split type AC installation and fittings.

Introduction to different types of split AC. Mention the advantage and disadvantage of split type AC.

Introduction to different types of split AC. Mention the advantage and disadvantage of split type AC.

Check refrigerant     in split type AC. Check indoor and outdoor unit.

Class 85

Class 86

Class 87

Class 88

Class 89

Class 90

15

Theory

Introduction on Refrigerant  locked and open in the split type AC.

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Practical

Refrigerant  locked and open in the split type AC.

To check lick, evacuating and  charging refrigerant of split type AC.

Repairing of  split           type AC.

Replacement of condenser cooling fan and compressor motor.

Troubles, causes of Troubles and remedies of Troubles of split type AC.

Troubles, causes of Troubles and remedies of Troubles of split type AC.

Class 91

Class 92

Class 93

Class 94

Class 95

Class 96

16

Theory

Introduction to water chiller.

Knowledge about heat temperature and pressure.

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Knowledge about compressor, condenser& Evaporator.

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Practical

Working principal of refrigeration cycle different cycle.

To explain heat, temperate and pressure. Measurement of Temp, pressure, humidity, capacity of the refrigeration plant.

To demonstrate refrigeration cycle of water chiller.

Compressor, condenser expansion device and evaporator  used if = n water                Chiller.

Identify about auxiliaries and accessories used in refrigeration cycle. Demonstrate of function and location in the cycle.

Identify about auxiliaries and accessories used in refrigeration cycle. Demonstrate of function and location in the cycle.

Class 97

Class 98

Class 99

Class 100

Class 101

Class 102

17

Theory

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Practical

Safety and controlling device used in the water chiller. Edification of refrigeration of refrigerant used in water chiller.

Refrigeration piping, condenser chilling chilled water piping, fitting and installation.

Leak test evacuation and charging of the plant.

Repairing of water             Chiller.

Trobles, causes       of   trobles and            remedies trobles of        a water chiller.

Trobles, causes of   trobles and remedies trobles of a water chiller.

Class 103

Class 104

Class 105

Class 106

Class 107

Class 108

18

Theory

Introduction of auto car AC.

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Practical

Demonstration on the operation of refrigeration cycle auto car AC.

Identify the electrical components of an auto car AC check the blower fan.

Identify the electrical components of a auto car AC check the Blower fan.

Check for its proper funtion, relay, Battery fuse and other components.

Check AC and Blower switch, condenser fan,         Regulator.

Check magnetic clutch, compressor coil, and high pressure switch.

Class 109

Class 110

Class 111

Class 112

Class 113

Class 114

19

Theory

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Practical

Check wiring of a auto car AC. Starting the auto car AC.

Air distribution system in auto car AC. Ducting duct installation.

Leak test evacuating and refrigerating charging.

Repairing auto                car  AC.

Trobles causes of trobles and remedies trobles auto car AC.

Trobles, causes of   trobles and remedies trobles auto car AC.

Class 115

Class 116

Class 117

Class 118

Class 119

Class 120

20

Theory

Introduction to central AC plant. Demonstration of refrigeration and AC equipment.

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Practical

Working principal of refrigeration Cycle.

Introduction pipe line fittings. Measurement of temp, humidity and air Velocity.

Refrigeration system function, clasificassion of each components Demonstration on each component.

Classification of compressor, compressor use in central AC plant.

Condenser types, condenser used in central AC plant.

Condenser types, condenser used in central AC plant.

Class 121

Class 122

Class 123

Class 124

Class 125

Class 126

21

Theory

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Demonstration on          cooling tower.

Expansion device used in central AC plant, evacuators used in central AC plant.

Expansion device used in central AC plant, evacuators used in central AC plant.

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Demonstration on AHU, FCU (Air handling unit fan coil unit.)

Practical

Pining connection with condenser, maintenance of condenser.

Operation of               cooling tower.

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Introduction of piping connection with the evaporator. Maintenance of evaporator.

Introduction of piping connection with the evaporator. Maintenance of evaporator.

Class 127

Class 128

Class 129

Class 130

Class 131

Class 132

22

Theory

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Practical

Demonstration the safety devices signals and switches used in central AC plant.

Air distribution system in auto car AC. Ducting duct installation.

Replacement of system components evacuating, charging and purging oil charging.

Identification of full charge. Starting up the central AC Plant.

Troubles, causes of troubles, remedies of troubles of central Ac plant.

Troubles, causes of troubles, remedies of troubles of central Ac plant.

Class 133

Class 134

Class 135

Class 136

Class 137

Class 138

23

Theory

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Practical

Servicing and maintenance of a frost type Refrigerator.

Servicing and maintenance of a auto defrost type Refrigerator.

Servicing and maintenance of a No- defrost type Refrigerator.

Servicing and maintenance of a chest- type Refrigerator.

Servicing and maintenance and installation of water cooler.

Servicing and maintenance and installation of Beverage cooler.

Class 139

Class 140

Class 141

Class 142

Class 143

Class 144

24

Theory

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Practical

Servicing and              maintenance and          installation of a           window type AC.

Servicing and              maintenance and          installation of a           Split type AC.

Servicing and              maintenance and          installation of a           Auto car AC.

Servicing and              maintenance and          installation of a           Water chiller.

Servicing and              maintenance and          installation of a           Central AC.

Servicing and              maintenance and          installation of a           Central AC.

 

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