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Design & Selection of Air conditioning Units
Course Objectives
After completing the course, participants shall be able to:
• Select the proper compressor for the A/C application
• Design a finned evaporator coil including circuiting & refrigerant distribution
• Design a finned condenser coil including circuiting & refrigerant distribution
• Select the proper expansion valve and system pressure drop
• Select basic system protectors
• Design a hot water coil for heating applications
• Select the proper heat pump unit & calculate supplementary heat requirements
• Calculate cooling / heating loads
• Select alternative refrigerants
• Calculate humidity for space requirements
• Select and calculate evaporator blowers, pulleys and belts
• Design and select the proper A/C unit for the application
• Having basic knowledge of trouble shooting for A/C units
• Having basic knowledge of safety issues related to A/C units
Who should attend?
• Air conditioning unit designers
• Air conditioning manufacturers and production engineers
• Plant engineers and operators
Course Outline
• Introduction and history
• Terms and definitions
• Concepts of heat transfer
• The mechanical refrigeration cycle
• Compressor selection
• Video tape on compressors faults & remedies
• Design of finned evaporators
• Selection of refrigeration distributors
• Design of air cooled condensers
• Software on coil design
• Expansion valve selection and unit pressure drop
• Video tape on expansion valves
• System protectors
• Video tape on system protectors
• Alternative refrigerants
• Selection of A/C units
• Heat pump applications and supplementary heat requirements
• Load calculations (heating / cooling)
• Air mixing in air handling units
• Duct heaters and humidifiers
• Heating coil design
• Pulleys and belts
• Trouble shooting
• Safety tips
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