Overview

HVAC system components may be grouped into three functional categories: source components, distribution components, and delivery components. Source components provide or remove heat or moisture. Distribution components convey a heating or cooling medium from a source location to portions of a building that require conditioning. Delivery components serve as an interface between the distribution system and occupied spaces. Compact systems that serve only one space or zone of a building (local systems) often incorporate all three functions in a single piece of equipment. Systems that are intended to condition multiple spaces in a building (central systems) usually have distinctly different equipment elements for each function. This 6- hr course provides information on the various types of HVAC heating and cooling equipments along with associated system design aspects. The course describes how to select appropriate HVAC equipment for your application and how to integrate various components as a working system. This course is in continuation to the course titled HVAC Concepts and Fundamentals , which introduced the basic design aspects, comfort parameters, psychrometrics, heat transfer concepts, heat loss and heat gain calculations and methods to calculate the energy costs. This course is intended for people who plan, design, install, and operate HVAC systems for buildings. Design engineers, architects, designers, contractors, energy auditors, facility managers and maintenance personal should benefit professionally. It is also relevant to anyone needing to know more about HVAC equipment production and use. Previous knowledge of the subject is not required. The reader must take a multiple-choice quiz consisting of forty (40) questions at the end of this course. Learning Objectives The course comprises 8 sections, to provide comprehensive information on the main equipment and uses of modern HVAC systems. SECTION #1Central Heating Sources - Provides an overview of various types of heating systems available for commercial and residential applications such as furnaces, boilers and heat pumps. Includes basic selection criteria for heating system and factors considered when designing commercial heating systems. SECTION # 2 Central Cooling Sources- Provides an overview of various cooling equipments such as mechanical chillers, absorption chillers, DX units, evaporative cooling and cooling towers. SECTION # 3HVAC Delivery Equipment - Provides an overview of various heating and cooling delivery equipments such as convective and radiation baseboard units, air handling units, unitary units, fan coil units and their components. SECTION # 4 Air Distribution Ductwork - Provides an overview of air movement, components of air distribution systems, duct classification on velocity, pressure, shape and materials. SECTION # 5Air Distribution Equipment & Accessories - Provides an overview of air delivery devices such as registers, grilles and diffusers. Covers other terminal devices such as dampers, louvers etc SECTION # 6System Design - Provides an overview of all-air and all-water systems. Describes constant air volume, variable air volume, single duct and multi-duct air conditioning systems. SECTION # 7Hydronic Distribution - Piping and Pumps - Provides an overview of the hydronic loops and the principles of centrifugal pumps. SECTION # 8 Annual Energy Use Calculations - Describes the concept of balance point temperature and heating and cooling degree days in determining annual energy costs.

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