Contents :
:: Practical ::
-Use sling psychrometer and take wet /dry builb temperature reading
-Check and find relative humidity by psychrometer chart
-Check the air tempreture at ducts and grills
-Check the humidifier and dehumidifier
-Rough check the performance of A/C equipment
-Measure the air flow with anemometer
-Use inclined tube mono meter and measure air pressure
-Check the air flow with pitot tube
-Check air distribution in package A/C
-Identify the components and Controls of package A/c
-Servicing package Air conditioner
-Troubleshoot package A/C for "Less cooling "
-Troubleshoot and repair for the symptom "Insufficient air flow "
-Troubleshoot for the symptom 'Compressor cut off through LP cut off"
-Troubleshoot for the symptom " Unit trips frequently "
-Operate the package A/C as per sequence
-Check the leaks in package A/C
-Clean the evaporator of package A/C
-Arrest the leak in package A/C
-Clean evaporator blower and check the motors
-Trace the electrical wiring circuit of package A/C
-Check and test high pressure (HP) cutout switch
-Check and test low pressure (LP) cutout switch
-Check the liquid line solenoid valve of package A/C
-Check and test the thermostat in package A/C
-Identify duct materials and understand duct layout drawings
-Measure and fabricate duct as per layout drawing
-Check and arrest air leak in ducts
-Identify and check air filters
-Clean the air filters
-Check and replace air filters
-Replace the damage portion of duct and insulation
-Isolate and control the noise in AHU room
-Arrest chilled water pipe and valve leak
-Re-correct insulation faults of chilled water pipe
-Service water control valve (Regulation valve)
-Service duct line dampers
-Install the compresser of A/C plant
-Install the other components of A/C plant
-Check the operation of electrical and mechanical components
-Check the leak in A/a plant
-Rectify the leaks in the system
-Pressurise and check leak in the leak arrested system
-Vacuumize the system ,to deep vacuum
-Check the operation of the system as per safety procedure
-Start and stop of A/C plant
-Check and service heat exchanger
-Check the service heat exchanger
-Check leak and rectify in heat exchanger
-Check the super heat and heat transfer efficiency of evaporator
-Isolate the compressor from drive system
-Remove commercial compressor from foundation
-Dismantle the compressor
-Check and rectify the problem in valve assembly
-Check the fault and rectify in piston assembly
-Check the piston ring and but clearance
-Check and rectify the fault in cylinder liner
-Check lubrication system of oil circulation
-Check and service lub oil pump
-Clean lub oil filter and add oil
-Service the oil separator
-Identify the types and parts of capacity control
-Dismantle the capacity control
-Service and assemble the capacity control
-Check and service the bearings of the compressor
-Check and service the shaft seal
-Check and cut the gaskets for compressor
-Assemble the compressor
-Test the efficiency of the compressor
-De-scale the water cooled condenser
-Check the water flow and differential pressure in condenser
-Check leakage in liquid receiver and condenser tubes
-Check and service liquid line sight glass
-Check the evaporatives condenser
-Service the evaporative condenser
-Check and service fan motor in evaporative condenser
-Check the cooling tower system before servicing
-Check and service cooling tower fan servicing
-Check cooling tower and accessories
-Service the water softening plant
-Service the iron removing plant (Ion Exchange )
-Back wash the Ion exchangeing bed
-Remove and repair the softner tank
-Identify the parts of a centrifugal pump
-Dismantle the water circulating pump
-Repair and reassemble the pump
-Test and adjust thermostatic expansion valve
-Service brine chilling Evaporators
-Service flooded type evaporator
-Service suction liquid heat exchanger
-Check the essential jobs in routine maintenance
-Check the essential jobs in preventive maintenance
-Operational maintenance in central A/C plant
-Check the safety measures while the plant is in operation
-Check the reading and record in log book

:: Theory::
-Fundamental of central A/c Plant
-Comfort air conditioning
-Psychrometry
-Psychrometric charts
-Various types of central A C
-Heat pumps
-Unitary air conditioning system
-Air flow and distribution
-Package A/C system
-Safety switches and controls of package air conditioner
-Package unit's cooling tower and servicing
-Leak detection in package A/C
-Evacuation in package A/C
-Refrigerant charging system
-Testing of air-conditioning system
-Electrical wiring of package A/c
-Electrical components of package a/c
-Electrical motor starting and safety devices
-Safety controls and humidification devices
-Duct system
-Ducts and equipment /Systent balancing
-Duct designing and arrangement
-Air,vapour,gases and indoor air quality
-Type of filters
-Details of filters
-Central station for air conditioning
-Chilled water circulation
-Modulation valves and expansion tank
-introduction to load calculation
-Sensible and latent heat
-Heat source in an air-conditioning system
-Method of leak detection in A C units
-Dehydration and evacuation
-Charging gas and testing the system
-State of the refrigerant in vapour compression system
-Possible Noise in A/c
-Electrical measurements
-Super heat and sub-cooling
-Performance of reciprocating compressor
-Volumetric efficiency of compressor
-Air handling units and ducts
-Compressor lubrication system
-Various types of lubrication system
-Compressor capacity control
-Methods of capacity controls
-Centifugal compressors -multistage
-Construction and function of centifugal compressor
-Purge and recovery system system
-Capacity of the centrifugal plant
-Lubrication of centrifugal system
-Condenser and its types
-Capacity of water cooler condenser
-Selection of Condenser
-Evaporative condenser
-Function of evaporative condenser
-Cooling tower
-Types of cooling towers
-Cooling tower approach
-Water conditioning
-Water scale and control methods
-Principles of working of a water pump
-Commonly faced problem in water pump
-Refrigerant control devices -Types -Functions
-Construction of thermostatic expansion valve
-water /brine chiller
-Secondary refrigerants
-Suction liquid heat exchangers
-Preventive maintenance
-Operation and maintenance
-Seasonal shut-down and maintenance