AIR DUCT SERVICING : Intermediate (Book with DVD) (Workbook Included)

Air Duct Servicing: Intermediate comprehends various diverse practical and visual skills with knowledge of specialized materials and techniques. Air ducts are associated with heating, ventilation and air conditioning (HVAC) system and are the pathways for heated or cooled air to travel throughout a home. Air duct cleaning is the process of removing dust and other contaminants that accumulate over time from your air ductwork. Air ducts are like the circulatory system of your home, which is why air duct cleaning is so important! This book will introduce the knowledge and skills for those studying and/or working in HVAC industry to interpret and convey information in response to workplace requirements.

About this Book

The information in this book consists of competencies that a person must achieve to enable him/her to interpret working drawing, fabricates, assembles and installs air ducts using hand and power tools and sheet metal working equipment.

About the HVAC Servicing Industry

An air duct is a square or round hollow conduit or tube usually made of sheet metal. The purpose of an air duct is to carry cooled or heated air into rooms. The ducts usually form part of a home or building’s air conditioning and ventilation systems. The main heating and cooling source of the building is connected to air ducts. This cooling or heating source produces heat energy. The energy is pushed up through the air ducts, and is carried elsewhere in the building as a result of pressure. When the air is carried through the air ducts, vents are strategically placed in rooms that require heating or cooling. The hot or cold air carried through the air duct blows out of these vents, providing a temperature adjustment to the room. In many cases, vents can be opened or closed at will to determine whether air will leave the air duct or continue through the ducts. Air ducts can be prone to several problems. Since the ducts are located out of site in walls or along the ceiling, maintenance can be difficult. Many often forget to do proper maintenance as well, causing potential long term problems. A leaky air duct, in which the connections between the ducts themselves or between the ducts and heater are not secure, can result in a tremendous waste of energy. Tubes may also have leaks as a result of natural wear and tear. Poor installation and design can also cause leaky ducts. Professional air duct cleaners inspect and clean the entire cooling and heating system, including the fans, registers, coils, ducts, and coils. This process can keep the heating and cooling system in good working order. Cooling and heating devices help regulate the temperature, humidity, and air quality residential homes, commercial locations, and industrial facilities. Many items like food and medicine require refrigeration to keep them from spoiling. Technicians carry out repairs, maintenance, and installations of heating, air-conditioning, and refrigeration systems. As these systems are often called HVACR systems, workers are often referred to as HVACR technicians. Promotion in the industry typically is shown by higher earnings. Still some workers will be promoted to positions as a supervisor or manager, while others might move into sales positions or marketing. Some will become building superintendents, cost estimators, or teachers after attaining the needed certification. Those with the financial means and the appropriate managerial ability might start their own business.