HVAC Design & Drafting

Introduction to Career & Scopes in HVAC

Types of jobs available in the field of HVAC.

Introduction to Building Construction

Key responsibilities of HVAC consultant, contractor & manufacturer.

Dependency on other industries

Building codes & standard

Coordination with other building service

Introduction to Heating Ventilation and Air Conditioning

Modes of Heat Transfer in a building

Forms of Heat

Unit of Refrigeration

Codes & standard used in HVAC industry

Basics of air conditioning & refrigeration system

Vapour Compression cycle

Vapour absorption cycle

Important Units Used in HVAC

Study of Psychometric Charts

Dry Bulb Temperature

Wet Bulb Temperature

Dew Point Temperature

Relative Humidity

Humidity Ratio

Enthalpy

Processes

I.Heating

II. Cooling
III. Humidification
IV. Dehumidification etc.

Major Components of air conditioning System

Types & function of Compressor

Types & function of Condenser

Types & function of Expansion Valve

Types & function of Evaporator

Classification of Air‐Conditioning System

Window A/C

Working of Window A/C with Line Diagrams

Split A/C

Types of Split A

Working of Split A/C Line Diagrams

Ductable Split A/C
I. Working of Ductable Split A/C with Line Diagrams

Variable Refrigerant Volume (VRV)/Variable Refrigerant Flow (VRF)

Ductable Package A/C
I. Working of Ductable Pa age A/C with Line Diagrams
II. 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

Load calculation
Manually
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)
ESHF, ADP & Air Flow Rate (CFM) & Tons of Refrigeration Calculation
E 20
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)
ESHF, ADP & Air Flow Rate (CFM) & Tons of Refrigeration Calculation

HAP
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)
ESHF, ADP & Air Flow Rate (CFM) & Tons of Refrigeration Calculation

Air Distribution System
Duct‐Definition & Terminology
Duct Design consideration
Duct sizing methods
Role of Aspect Ratio in duct design
Finding Duct size using Duct Sizer
Ducting markup on the architecting markup on the architectural

Making of 2D Ducting Layout
Calculation of the Duct Area
Gauge selection for Ducting Sheet
Legends and Symbols used in the HVAC Field
Duct Materials
Insulation materials used in HVAC Industry
Acoustic materials
Selection of Diffusers, Grilles, dampers, Fire dampers, Fresh Air louvers etc.
Total Static Pressure calculation
I. Selection of Motor HP
II. Selection Fan/Blower RPM
III. Selection Fan/Blower RPM
Hanging Arrangement of Ducting
Accessories used in duct hanging.
Making of final BOQ of Ducting and its Accessories

Chilled water system designing
Classification of Water Piping
Pipe sizing for chilled water system & condenser line
Insulation used for chilled water, condenser water piping etc
Fittings & Valves used in the HVAC Piping System
Function of Valves Ø Selection of pump

VRF/VRV System designing
Selection of VRF/VRV Equipment
Indoor unit selection
Outdoor unit selection
Copper Pipe Sizing
Schematic drawing
Line diagram

Ventilation System

Kitchen Ventilation System
Car parking Ventilation System
Toilet Exhaust Ventilation System
Factory Ventilation System
Smoke Ventilation System