Ninety percent of compressor failures can be attributed to problems found elsewhere in the system. And, serious consequences can result if technicians don’t determine the true source of the compressor failure.
As manufacturers research the viability of low-GWP and other natural refrigerants, they face the concurrent challenges of ensuring compressors are efficient, safe, and reliable.
A common complaint throughout the HVACR industry is that when new technicians enter the industry, they don’t have the skills and knowledge that employers expect. One area where this is evident is in the field of compressor service.
The U.S. Army Natick Soldier Systems Center (NSSC) has awarded S-RAM Dynamics a Small Business Independent Research (SBIR) Phase 2 contract for $1 million to build and test a mobile refrigeration system demonstration prototype using the new S-RAM energy recovery compressor that utilizes CO2 refrigerant.
Tecumseh Products Co. announced that Harold Karp has stepped down as president and CEO of the compressor manufacturer. He is succeeded by Doug Murdock, who most recently served as president of the Climate Products Group at Mueller Industries Inc.
As the DOE mandates minimum efficiency performance and the EPA delists ozone-depleting refrigerants, manufacturers are being tapped to create speed-controlled compressors that run on an array of natural refrigerants.
The second-generation Copeland Scroll variable-speed ZPV2 compressor features intermediate discharge valves to boost efficiency, optimized scroll elements for variable-speed performance, a positive displacement oil pump for enhanced reliability in low-speed operation, and brushless permanent magnet (BPM) motor technology.
Compressor performance curves can provide a service technician with the Btu pumping rate (capacity), mass flow rates, operating amperage, and operating wattage of a compressor when the suction pressure and head pressure are known for the system.
The meeting included a tour of the factory where Danfoss Turbocor Compressors are engineered and produced, emphasizing the importance of the advancement of energy-efficient technologies and the resulting impact on the industry, economy, jobs, and local communities.
Danfoss DSH scroll compressors with Intermediate Discharge Valves (IDVs) are designed for the next generation of rooftop units and chillers by saving energy and improving system part-load efficiency, enabling systems to meet energy regulations and standards with minimal redesign or retrofit costs.