SUMMARY Detailed information on how to use commonly available parts to turn your chiller components on and off remotely. RESOLUTION We have provided a PDF download file that describes how to use commonly available parts to remotely start and stop your Legacy Chillers system pump as well as the entire chiller. Before proceeding, there are […]
Chiller Economizer Operation – Video Training
SUMMARY Chiller Economizer System training video provides information on chiller economizer design and operation. MORE INFORMATION Watch video or download the latest press and white paper information on Legacy Patented Economizer System. RELATED DOCUMENTS Legacy Integrated Economizer Introduction Legacy Integrated Economizer Operation
Heat Loss Uninsulated Copper Pipes
SYMPTOMS Heat loss from 1/2″ to 4″ uninsulated copper pipes Heat loss from 1/2″ to 4″ copper pipes or tubes at various temperature differences between the pipe and the surrounding air, can be found in the table below: RELATED DOCUMENTS Heat Loss Uninsulated Copper Pipes
Global Warming – Newsweek 2007
SYMPTOMS Aug. 13, 2007 issue – Sen. Barbara Boxer had been chair of the Senate’s Environment Committee for less than a month when the verdict landed last February. “Warming of the climate system is unequivocal,” concluded a report by 600 scientists from governments, academia, green groups and businesses in 40 countries. Worse, there was now […]
NEMA – IEC Enclosure Standards
SYMPTOMS NEMA enclosure classifications are developed by NEMA and used in the U.S./American market. Ingress Protection -IP – ratings are developed by the European Committee for Electro Technical Standardization (CENELEC) (described IEC/EN 60529), and specifies the environmental protection and enclosure provided. RELATED DOCUMENTS NEMA – IEC Enclosure Standards
Compressor Hot Gas Bypass (HGBP) heating water
SYMPTOMS When microprocessor set point (SP1,SP2) is set below 45F, the chiller runs constant and appears to be heating water rather than cooling. Gylcol freeze protection may have been also added to the system. CAUSE All Legacy Chillers are tested and set up at the time they leave the factory to run water only. This […]
Phase reversal
SYMPTOMS Scroll compressor running but is loud with poor cooling and pumping performance. CAUSE This condition commonly occurs at startup. When the chiller is run tested at the factory, there is a 50% change that your building power will be orientated the same as the factory. If your building is out of phase with the […]