HVAC Design & drafting

Course Duration: 45 days

Price: 12000rs

Eligibility: Any Graduation, Diploma

Introduction to Building Construction (Civil & MEP Services)

• Key responsibilities of HVAC consultant, contractor & OEM (original Equipment manufacturer).
• Dependency on other allied industries
• Coordination with other building services

Introduction to Heating Ventilation and Air conditioning

• Modes of Heat Transfer in a building
• Forms of Heat (Sensible & Latent Heat)
• Unit of Refrigeration
• Codes & standard used in HVAC industry

Basics of air conditioning & refrigeration system

• Vapour Compression cycle
• Vapour absorption cycle

Major Components of air conditioning System

• Types & function of Compressor
• Types & function of Condenser
• Types & function of Expansion Valve
• Types & function of Evaporator

Refrigerant & its properties

• Classification
• Thermodynamic properties
• Physical properties
• Chemical formulas of important refrigerants

Classification of Air‐Conditioning System

• Window A/C
• Working of Window A/C with Line Diagrams
• Split A/C
• Types of Split AC
• Working of Split A/C with Line Diagrams
• Ductable Split A/C
• Working of Ductable Spl A/C with Line Diagrams
• Variable Refrigerant Volume (VRV)/Variable Refrigerant Flow (VRF)
• Ductable Package A/C
• Working of Ductable Pa age A/C with Line Diagrams
• Package Roof Top Un
• Central Plant Chilled Water System

Categories of Air Conditioning

• All air system
• All water system
• Air ‐ water system
• Direct Refrigerant system

Study of Psychometric Charts

• Dry Bulb Temperature
• Wet Bulb Temperature
• Dew Point Temperature
• Relative Humidity
• Humidity Ratio
• Enthalpy
• Processes
  1. Heating
  2. Cooling
  3. Humidification
  4. Dehumidification
  5. Cooling and Dehumidification
  6. Cooling and Humidification
  7. Heating and Humidification
  8. Heating and Dehumidification.

Load calculation

• Building survey
• Cooling & heating Load Steps
• Finding Temperature difference(Delta T) (Wall, Glass, Roof , Partition)
• Finding ‘U’ Factor (Wall, Glass, Roof, Partition)
• Finding Ventilation requirement for IAQ
• Finding Infiltration due to cracks & opening
• Load Calculations (Manually using E‐20 form)
• ESHF, ADP & Air Flow Rate(CFM) & Tons of Refrigeration Calculation

Air Distribution System

• Duct‐Definition & Terminology
• Duct Design consideration
• Duct sizing methods
  1. Velocity Reduction Method.
  2. Equal friction method
  3. Static regain method
• Role of Aspect Ratio in duct design
• Finding Duct size using Duct Sizer
• Single Line diagram (SLD)
• Double Line diagram (DLD)
• Total surface Area Calculation of Duct as per the shape of duct
• Gauge selection for Sheet Metal
• Legends and Symbols used in the HVAC Industry
• Duct Materials
• Insulation materials used in HVAC Industry
• Acoustic materials
• Concept of CAV & VAV
• Selection of Diffusers, Grilles, dampers, Fire dampers, Fresh Air louvers etc.
• Hanging Arrangement of Ducting
• Accessories used in duct hanging‐ Fastener, Threaded rod, angles & channel.
• Quantifying the ducting & its associated materials required for final BOQ

Static Pressure calculation

• Selection of Motor HP
• Selection Fan/Blower RPM
• Selection Air Handling Units.

Hydronic System/ Chilled water system designing

• Classification of Water Piping
• Pipe sizing for chilled water system & condenser line.
• Valves used in the HVAC Piping System
• Insulation used for chilled water ,condenser water piping etc
• Fittings used in the HVAC Piping System
• Function of Valves
• Pump Head Calculation

VRF/VRV System designing

• Selection of VRF/VRV Equipment
• Indoor unit grouping
• Outdoor unit selection
• Copper Pipe Sizing
• Refnet Selection

Ventilation systems

• Selection of VRF/VRV Equipment
• Kitchen ventilation system
• Car parking ventilation system
• Toilet Exhaust Ventilation System

Important Concepts & Terminology used in HVAC Industry

• District Cooling system
• Green Building
• Basics of BMS (Understanding Sequence of Operation for HVAC System)

Basics of HVAC Drafting

• Symbols & Legends of HVAC System
• Drafting Standards of HVAC System
• Representation of Design drawing
• Preparation of Single line Schematic & isometric Drawing of Air condition Ducting & ventilation Ducting Typical details of equipment’s used in projects
• Special class on drafting from industrial expert.

• Introduction to Ms Projects, MS excel for making project schedule.

• Making Powerpoint presentation for projects.

• Safety awareness at workplace.

• Developing Interview Preparation skills

• Resume preparation
• Conduct Mock interviews.

Project Work:

• 2 projects have to be completed before getting any certificate and placement assistance.