Chillers and Data Centers -Data Centers - Heat Containment offered by Legacy Chiller Systems
Todays data centers are plagued with cool air oversupply and air distribution short-circuiting. Instead of supplying more chilled air, we can use a simpler approach to satisfy the...

Closed Loop Chiller System - Automatic Air Vents
A closed loop chiller system has many operational advantages over an open loop (open vented) system. Engineers and installers must consider automatic air removal when designing...

Closed Loop Chiller System Training by Legacy Chiller Systems
Webinar recorded 6-24-2008 covering closed loop chiller systems advantages and disadvantages. Presented by Legacy Chiller Systems with Panelists from International Chemtex Corp...

Compressor Hot Gas Bypass (HGBP) heating water
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...

Compressor Warranty
I have a 4 year extended warranty on my Copeland compressor. What are the procedures for warranty return? STANDARD Compressor Coverage: Legacy offers both standard and optional...

Convert Amperage between Single and Three Phase
The table below can be used to convert amperage between single phase and three phase and vice versa.

Copeland Semi-Hermtic Solid State Module Troubleshooting
Copeland Semi-Hermtic compressor will not start Possible issue with Copeland Solid State Compressor Motor Protector Attached article covers operation and troubleshooting...

Copper Pipes - Insulation and Heat Loss
The heat loss from an insulated copper pipe or tube to the surrounding air can be found in the table below.

Copper Piping Water Velocity Limits
The water velocity in copper pipes should be kept within certain limits to avoid erosion, corrosion and excessive noise generation.

DotMed Industry Sector Reports - Legacy Chillers
Chillers: Legacy Chiller Systems -Indispensable to Any Hospital's Operations by Jean Grillo

Electrical Definitions, Terms, and Formulas
• Volts - The units of electrical potential or motive force. The force is required to send one ampere of current through one ohm of resistance.
• Ohms - The units ...

Field Case Study - SUPERCHANGER Cools Quench Solution at Rockwell International
When engineers at Rockwell International’s Automotive Products Division were planning a new hardening furnace for heat treating universal joint components, they wanted an...

First of a kind factory rebate program to help businesses located in US drought zones
Friday, March 22, 2002 - Legacy Chillers to offer first of a kind factory rebate program to help businesses located in US drought zones conserve millions of gallons of water.

GLF/API customer base training by Legacy Chiller Systems
Webinar recorded 7-16-2008 covering chiller service and maintenance information for biodiesel production plants. Presented by Legacy Chiller Systems.

Global Warming - Newsweek 2007
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...

Global Warming Worries
Business Week - 10-30-2006 - Global Warming: Here come the Lawyers. The next wave of litigation after Tobacco, Guns and Junk Food. Why Detroit, Big Oil and untilies should worry....

Glycol - Adding to chiller loop
There are many applications where a chillers process loop has the possibility of freezing by way of (direct or indirect) contact with cold ambient air temperatures or the process...

Goulds Pump Curves And Other Information
The downloadable PDF files below provides usefull Pump Curve information that can be used to properly select the correct pump for your chiller system.

Heat Loss Uninsulated Copper Pipes
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 ...

hi1 or hi2 compressor shut down
Compressor runs for 60 to 120 seconds then shuts down on micro processor hi1 or hi2 pressure trip. Possible issue with liquid line solenoid no fully opening. In rare cases, the...