From the course: Mechanical Systems: Reading HVAC, Plumbing, and Other Drawings and Schematics
What are mechanical systems? - Bluebeam Revu Tutorial
From the course: Mechanical Systems: Reading HVAC, Plumbing, and Other Drawings and Schematics
What are mechanical systems?
- [Instructor] Before we begin learning about how to read mechanical drawings and diagrams, we should be on the same page as to what mechanical means for the purposes of this course. In the construction world, mechanical means systems and processes inside and outside of a building that usually move fluid, air, or other media. Here's some of the most common systems. Plumbing. Plumbing systems contain and move water. Usually freshwater and sometimes wastewater. Designers and installers of plumbing systems use drawings and schematics to convey detailed information about how they want the system to work, and how they would like it installed. Plumbing includes fixtures like lavatories and sinks that are in homes. It also includes dishwashers, clothes washers, and other home and business appliances. It also includes all the piping and other materials that are used to make it work. Most of this is hidden inside walls, below floors, and even underground. HVAC. HVAC is an acronym that stands for heating, venting, and air conditioning. That's a system that's made up of duct work, refrigerant lines, steam lines, and more. These systems are usually complex, and drawn in different types of drawings to best illustrate all the needed details for a full and working system. The chief components of HVAC are duct work, compressors, heat pumps, and refrigeration equipment. Larger HVAC systems also use piping, to distribute cold and hot liquids and gases, to help the system do its job. Process piping is used in the manufacturing and movement of liquids, solids, and gases. It is used in factories where products are assembled and manufactured. Also, where liquids are treated, like fresh and wastewater treatment facilities. It is similar to plumbing piping in some ways, but it also has many differences in material types, fittings, and utilization equipment. Process piping can be installed inside and outside. Often it's insulated to keep the fluid cold or hot. Pumps and other equipment, move the liquid or gas. There's a variety of measurement and control instruments attached to processed piping systems. Collectively, they're referred to as instrumentation. Other, less known mechanical systems like hydraulic systems, pneudraulic systems, and vacuum systems often have their own types of drawings and symbols. We'll explore some of this as well. Here's a hydraulic manifold, or a grouping of manual valves. And lastly, many of these systems have corresponding electrical systems that interact and control them. Even though this is not an electrical course, we will review some of these electrical control drawings and discuss how they relate to their corresponding mechanical systems. Thermostat, smart devices, and low-voltage cabling are just some of the parts and pieces that are considered controls, or temperature controls.
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