The chillers in the comparison were an industry-average, 1,000-ton electric centrifugal chiller with variable speed drive and absorption chillers of three different types: single-stage steam, two ...

From basic electrical circuits to control and motor circuits, the series teaches a proven troubleshooting process, providing hands-on training on a range of realistic electrical simulations. The ...

Due to safety reasons, however, the sense of touch should not be used in electrical troubleshooting procedures. Working knowledge of how the system is supposed to operate — Sometimes, wiring diagrams ...

Absorption chillers can be weaved into the existing central mechanical plant operation in many ways, and four primary ways are presented in this article. Waste heat application Part of a combined ...

Last summer, the electric bill was especially high (even compared to the previous hot summer). The facility manager hired an HVAC firm to thoroughly examine the system. The firm found and repaired ...