Online Training - HVAC System: Operation and Maintenance

DESCRIPTION Heating, Ventilation and Air Conditioning System: Operation and Maintenance, covers the fundamentals and practical applications for understanding air conditioning systems including the operation and maintenance. The comprehensive coverage of the basic theory, latest terminology, system analysis, optimization concept, and calculation methods to make this the most complete course available today in achieving an economical system. Fundamentals of air conditioning system give comprehensively understanding air treatment and heat transfer principle in reducing energy cost, besides essential knowledge of fluid mechanics in air conditioning system. Those all play important role on operation and maintenance of air conditioning systems. Participating in this course, you enable to analyze and recommend the most effective solution available in air conditioning system for operation and maintenance, enable to utilize energy as possible as saving due to limited energy resources, and also you are familiar and better understanding of all aspects relate to efficient air conditioning system in building. OUTLINE 1. Basic Theory of HVAC

• Basic Concept of HVAC
• Basics of Heat and Measurement
• Thermodynamic Properties and Process
• Psychometric and Air Treatment
• Global Issues in Environment
• Unit and Conversion

2. Refrigeration and Refrigerants

• Montreal and Kyoto Protocol
• Refrigerant Types and Naming Rule for Refrigerants
• Refrigerant Requirements and Desirable Qualities
• Refrigerant Selection
• Suitable of Oil and Refrigerant
• Vapor Compression and Vapor Absorption Cycles
• Evaporative Cooling and Cooling Tower
• Storage System
• Water Systems and Unitary Systems

3. Air Distribution System

• Unitary and Central System
• Single-Zone Systems
• Multiple-Zone Systems
• Terminal Reheat Systems
• Dual-Duct or Multi-zone System
• Pressure Drop in Duct
• System Balancing
• Centrifugal Fans and Their Characteristics
• Air Distribution in Rooms
• Diffusers and Induction

4. Hydronic System

• Water and Refrigerant Piping
• Comparison of Water and Air as Heat-Conveying Media
• Heat Distribution from Hot-Water System
• High-Temperature Water Systems
• Available Pipe and Tubing
• Pressure Drop in Water Piping Installation
• Pressure Drop in Refrigerant Piping Installation
• Pump Characteristic and Selection

5. Basic Automatic Controls

• Basic Electricity and Magnetism
• Introduction to Automatic Controls
• Automatic Control Components and Applications
• Troubleshooting Basic Control

6. Safety, Tools, and Equipment

• General Safety Practices
• Tools and Equipment
• Fasteners
• Tubing and Piping
• Calibration Instrument
• General Maintenance

7. Leak Detection, Pumping Down and Charging

• Dye Systems
• Test Pressures
• Methods of Testing
• Bubble Test
• Halide Torch
• Electronic Leak Detector
• System Evacuation
• Refrigerant Recharging
• Refrigerant Recovery
• Recycling and Reclaiming

8. Operating Principles and Symptoms

• Temperature, Humidity and Air Motion
• Air Measurement
• Calculating the Operating Head Pressure
• Compressor Pressure Ratio
• Air Handling Unit
• Fan Coil Unit
• Filter Check
• Troubleshooting and Symptoms of System Faults
• Troubleshooting Refrigeration Systems
• Troubleshooting Hydronic Systems
• Troubleshooting Air Distribution Systems

9. Service, Diagnosis and Repair

• Definition of Reparation
• Replacing a Thermostatic Expansion Valve
• Replacing the Filter Drier
• Compressor Efficiency Test
• Water Cooled Condensers: Scale and Corrosion
• Compressor Motor Burn-out: System Flushing
• Pressure Controls
• Special Duct Problems and Duct Maintenance
• Special Piping Problems and Hydronic Maintenance

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