Professional Training of HVAC HEATING, VENTILATION ,AIR CONDITIONING

HVAC Course
Heating, ventilation, and air conditioning (HVAC) is an indoor and vehicular environmental comforting technology. The technology aims to provide thermal comfort and high indoor air quality. The techniques of ventilating a building is further divided into a few types as mechanical , forced, and natural ventilation that will provide optimal temperature throughout the day and night.

HVAC does the above function, through three different and integrated parts such as heating, ventilation, and air-conditioning at required points or wherever necessary. Installing, HVAC systems has become common in the recent days and also the required industry standard for construction of new buildings.



Introduction to HVAC

The need for HVAC
References, standards and codes
Terms, definitions and units
HVAC system type overview
Ventilation and air quality
Buildings and energy efficiency
Psychrometrics

Properties of moist air
Psychrometric chart
Sensible and latent
Combined processes
Mixing of air streams
Refrigeration

Definitions
Refrigerant selection
Safety considerations
Pressure and enthalpy
Phase change concepts
Vapor compression cycle
System components
Heating and Cooling Loads

Loads and energy
Heat transfer
Weather data
Infiltration and ventilation
Cooling load calculations
All Air Systems

Definition of “all air systems”
Types of all supply and return air systems
Recirculating / Mixed Air Systems
Dedicated Outside Air (DOAS) Systems
Overhead / Dilution Type: Constant Volume (CAV) and Variable Volume (VAV)
Displacement / UFAD Type
Types of exhaust systems
General – Toilet, etc.
Laboratory, process, or other specialty systems
Types of central equipment
Packaged / Unitary systems
Split systems
Air handling units
Fans
Types of terminal equipment
Air Terminal Units / VAV Boxes
Grilles, Registers, & Diffusers
System Comparison – Advantages / Disadvantages
Hybrid approaches
Applications / Examples
Hydronic Systems

Definition of “hydronics”
Comparison to air systems
Types of hydronic systems
Heating Hot Water
Chilled Water
Condenser Water: Tower and Geo-exchange
Glycol Water
Types of central equipment
Boilers
Chillers
Cooling Towers / Fluid Coolers
Pumps
Heat Exchangers
Types of terminal equipment
Coils
Unit Heaters
Fan Coil Units
Chilled Beams
Radiant
System Comparison – Advantages / Disadvantages
Steam and Steam Condensate

Definition of “steam”
Comparison to air and hydronic systems
ASME Codes / Safety
Types of steam and condensate systems
Low Pressure
High Pressure
Condensate Collection: Gravity return, Pumped return, Vacuum
Types of central equipment
Boilers
Heat Exchangers
Make-up water systems
Types of terminal equipment
Coils
Humidifiers
Unit Heaters
Fan Coil Units
Radiant
System Comparison - Advantages / Disadvantages
Applications / Examples
Field Tour - Wisconsin Energy Institute

Controls: Building Automation Systems

Definition / Purpose of “Building Automation System (BAS)”
Types of HVAC control systems
Local
Centralized (Building-wide)
Pneumatic
Direct Digital Control
Pneumatic-Hybrid
Programmable Logic Control (PLC)
Type of control equipment
Valves
Dampers
Actuators
Sensors and thermostats
Types of Controls
Proportional/Modulating Control Concepts
Open/Closed Loop Control
Wisconsin Energy Institute
Sequence of Operations
Mechanical Flow Diagrams

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