Technical

An Overview Of Building Diagnostics

January 23, 2004
Building diagnostics is a practical methodology that enables HVAC professionals to verify and document to customers that installed systems are meeting defined performance criteria, or, if the criteria are not being met, to indicate that interventions are needed to regain performance.
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Superheat And Subcooling Made Simple

January 11, 2004
The purpose of this article is to provide a simple explanation of these terms for those who desire a concise understanding as well as a review for those who understand the terms but want to take another look.
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Hydronic System Keeps Native American College Warm

December 29, 2003
For this design/build project, the tribe's architectural firm convinced college officials that a LoadMatch hydronic system would not cost much more than the all-air system they originally called for, and would be more comfortable and reliable in its delivery of Btu.
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The Advantages Of Cogeneration And Trigeneration

December 13, 2003
Owners of commercial buildings and commercial businesses are increasingly seeking ways to use energy more efficiently. Two ways to optimize fuel and electrical savings are through the use of cogeneration and trigeneration.
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Calculating Fuel Savings

November 28, 2003
Replacing a lower or medium efficiency gas- or oil-fired furnace or boiler with a higher efficiency unit will save on fuel consumption costs. What if a customer wants to know how much will be saved? Here is how it is done.
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Repair Or Replace? Contractors Help Building Owners Decide

November 15, 2003
As building owners and facility managers prepare HVAC systems for the peak heating season, the decision to repair or replace aging systems looms large. Contractors can help owners make an informed decision.
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Mastery Of Basics 1: Evaporators And Boiling Refrigerant

November 2, 2003
Mastering the basics, one step at a time, will make you fully prepared for this industry. It does take time to master the basics, but average people have done it and so can you.
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Fabric Duct Can Help Win Projects, Increase Profit Margins

October 20, 2003
Fabric duct has been used in Europe for over 30 years, but many American contractors have yet to install their first fabric duct project. However, the number of contractors with no fabric duct experience is diminishing as it gains acceptance.
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DDC Concepts And Strategies: An Introduction

October 5, 2003
Digital controls have been with us for years, yet those of us who do not regularly work with them are not always aware of their full capabilities.
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Preventing Leaks In A Copper Cooling Circuit

September 19, 2003
Typically, with factory coating, coils are immersed in a dip coating process prior to assembly. The problem is, even though they may be coated, the coils must ultimately be soldered into the copper cooling circuit. This results in sections of tubing being exposed to the atmosphere.
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