A brief summary HVAC Drafting Engineering is a highly booming industry with huge demand oriented career in it. All Chemical, […]

HVAC drafting : Introduction
- Introduction and Fundamentals of Air Conditioning.
- Modes of Heat Transfer
- Basic Components of Air-Conditioning and Refrigeration machines
- Refrigeration cycle – Line Diagrams
- Basic Refrigeration Cycle
- Chill water cycle
- Air cooled Chillers
- Water cooled Chillers
- Types of Air conditioning
- Categories of Air Conditioning -All air system ,All water system ,Air water system
- Study of psychometric charts Direct Refrigerant system
HVAC drafting : Detailing
- Survey of Building
- Materials used in the Building Finding Temperature difference and U Factor For Wall, Glass, Roof, Partition
- Load Calculations. Filling of E-20 Forms as per ASHRAE Standards for finding TR
- ADP &CFM calculation
- Static Pressure calculation for selection of motor & Fan
- Pipe size. Calculation (chill water pipe)
- Fittings used in piping.
- Air Distribution system
- Fire Fighting Equipment (Awareness).
HVAC drafting : Working Drawings
- Duct-Definition and types
- Materials of Duct and its specification (Gauge)
- Duct design consideration for Duct sizing as per Aspect Ratio
- Duct size method Equal Friction method Velocity reduction method. Static regain method
- Finding Duct size using Ductalator & Duct sizer software
- Calculation of No of sheets
- Symbols as per DW144 international standards.
- Preparation of single line diagram (SLD) in drawing sheet
- Layouts (Double line)
- Sectional Drawing of DUCTS & its supports.
- Wall openings drawings wherever duct is passing through walls
- Sectional drawing of pipe & its supports