If you are like most in the HVAC industry, you are a hands-on person - you don‘t want to mess with a lot of theory, but just get in and get the job done. But a refrigeration system is different from most of our work.
The objective of optimized shaft alignment is to increase the operating life span of rotating machinery. To achieve this goal, components must be made to operate within their acceptable design limits.
When rooftop units first came on the scene three decades ago, they were a rather basic solution for controlling temperature in one-story commercial buildings. Fast forward and that has all changed.
Effective air filtration provides the primary defense for building occupants and HVAC equipment against pollutants generated within a building as well as pollutants from air drawn into a building from the HVAC system. That’s why selecting the right HVAC filter is so critical.
There is absolutely no known technique for finding a crack 100 percent of the time. However, using a combustion analyzer to test for cracks in a heat exchanger offers some distinct advantages.
Techs interested in becoming certified in carbon monoxide (CO) testing not only need an understanding of combustion, but also low-level CO poisoning and what CO alarms do and don’t do.
Here are methods for performing differential
pressure measurement between two rooms or areas; airflow measurement for spray
booths, laboratory hoods, and unit ventilators; and other measurements.
If you work in the HVAC industry, you are concerned with the process of conditioning air and moving air from one area to another. It makes sense that you need to know how air flows in ducts and what factors affect the flow.
The act of melting snow is a fairly simple thing. Whether your heater of choice is hot water tubing or electrical elements, there are some basic details that are common to all successful snow melting systems.