HVAC COURSE SYLLABUS

(Heating Ventilation & Air conditioning)

FUNDAMENTALS

• Overview of the HVAC system
• Recall the fundamentals of Physics & Psychometric
• Various types of HVAC systems commonly using
• Functioning & components of a refrigeration system

APPLICATIONS

• Selection criteria of suitable HVAC system for a commercial building
• Introduction & components of central air conditioning system
• Study and analysis of airflow
• Area calculation, Velocity, Aiflow etc

DUCT SYSTEM

Duct design using manual formula as per ASHRAE

Duct design using MEDAC software

Duct design using Mcquay software

Duct design using ductulator / duct sizer

•  Equal friction , Constant Velocity & Static regain methods
•  Conversion of hydraulic diameter to rectangular ducts
•  Selection of air outlets (Grilles and diffusers)
•  Louvres,Sand trap louvers,fire damper,Fire/smoke damper etc
•  Door louvre,door undercuts
•  Volume Control damper, Splitter dampers
•  Duct layout drafting standards as per SMACNA
•  Air balancing
•  Exhaust air calculation

MATERIALS

• Material selection for duct work
• Duct construction standards as per SMACNA
• Gauges, thickness & weight of duct material
• Calculation of duct quantity
• Duct fabrication procedures

EQUIPMENTS

• Air Handling Units (AHU)
• Package Units
• Split A/Cs
• Window A/C
• Overview of district cooling system

AIR BALANCING & RETURN AIR

• Common return over ceiling
• Bell Mouth Opening
• Concept of return air wall opening
• Fresh air intake (%)

SHOP DRAWING PREPARATION

• Prepare architectural drawing
• Use proper layer and colour management
• Insert structural beam
• Insert lights,speakers,smoke detectors and sprinklers
• Locate diffusers as per ceiling type
• Finalize the best route
• Design the ducts and start duct layout in double line
• Apply SMACNA standard for drawing to the equal reducer,one side reducer,take
• Apply fire dampers, Volume dampers, Louvres, Splitter dampers etc

DUCT CONSTRUCTION AND SELECTION OF MATERIAL

• Sheet metal standards as per SMACNA
• Duct construction schedule-gauge,thickness,weight etc
• Duct weight calculation
• Selection criteria of gauges
• Schedule according to pressure classification
• Practical presentation of duct longitudinal connection
• Construction schedule from SMANCA handbook
• Drive slip,S-Sleeve,Standing S,Reinforced S etc
• Slide on flange and companion angle
• Duct support standards. Schedule of hanging and selection of threaded rod and Angle
• off,splitter etc
• Door louvre and door undercut

SYSTEMS CORDINATION

• Duct offsets & SMACNA formula
• Splitter construction and formula
• Assign levels to the ducts
• Allow space for other E&M services

HEAT LOAD CALCULATION

Calculate airflow, cooling load, Heating load, humidification, Heat recovery, Economizer etc.

• Area calculation
• Wall and window properties
• Solar emission
• Dry bulb & Wet bulb temperature
• U-Value calculation of wall,window,Roof etc
• Fresh air requirement for various utilities
• Equipment, Lighting watts
• People density and heat discharge
• Load calculation
• Ventilation air
• Selection of equipment
• Humidifier calculation
• De-humidification Calculation
• Pre-heat coil
• Heat recovery system
• Economizer or ventilation reclaim system

PSHYCHOMETRY

• Analysis of psychometric chart
• Sensible and latent heat
• Relative humidity
• Properties of air
• Temperature and unit conversions

TYPES OF CENTRAL AIR CONDITIONING SYSTEMS

– CAV SYSTEM

– VAV SYSTEM

– FCU SYSTEM

– DX-split unit system

– Package unit system

– Chilled Water Air Handling Units System

 

A. Merits  of each system

1.Individual control – VAV,FCU

2.Effective running cost – VAV

3.No mixing of air – FCU

LIFE SAFETY BY AIR UTILITIES

– Staircase pressurization

– Kitchen ventilation & make up system

– Car parking exhaust

– Hospital comfort air circulation

STATIC PRESSURE CALCULATION

• Static pressure calculation of AHU fans and exhaust fans by manual & software

CHILLED WATER SYSTEM

• Chiller capacity calculation
• Chilled water delta-T
• Selection, Ordering and installation procedures of chillers
• Design of chilled water piping- Supply and Return (Software and manual)
• Solenoid valves and controls
• Valves and accessories – DRV, GV, STR
• Chilled water piping drawing
• Chiller compound design

PUMPS

-Total pump flow and selection methods of chilled water pumps

-Pump head calculation

-Selection of pumps from catalogue

-Shop drawing preparation of chilled water pumps

HEATING SYSTEM

->Electric heater – Design & selection

->Heating coil system – Concept and design

HUMIDIFIER

• Electric steam humidifier
• Steam humidifier by direct steam supply
• Steam piping design
• Condensate piping design

STANDARD DETAILS 

• Duct hanger details
• Duct construction details
• Duct joining details
• Insulation & installation details
• Vertical duct support details
• AHU installation details
• Exhaust fan, Fresh air fan, FCU installation details
• Grilles and diffusers, Plenum boxes installation details
• Fire / Volume dampers details

ROOF DUCTING 

• Roof duct distribution
• Roof equipment installation (AHU, Exhaust fan, SF etc)
• Sand Trap Louvres, Aluminium filters, Fresh air louvres
• Roof mechanical systems supporting system
• Exhaust fan and fresh air fan installation system
• Equipment schedules

BUILDER’S WORK

• Structural coordination of duct system
• Concrete pad for equipments
• Slab openings for duct risers
• Equipment weights

CONTROL DIAGRAMS

• AHU, Chiller, FCU control line diagrams
• Mode of operations
• BMS & Automation Overview

BOQ & SPECIFICATION

• Bill of Quantities
• Costing and budget
• Project specification

 Course Duration: 2 Months + 1 Month Gulf Live Project Training (Regular), 1 Month (Fast Track)