Service & Maintenance

Btu Buddy 10: Working With A Gas Furnace That Is Down Drafting

January 23, 2004
In this edition of the Btu Buddy series, Bob encounters a furnace that is not drafting like it should. Btu Buddy helps him determine the problem and make recommendations to the homeowner.
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Fossil Fuel Heating Equipment: Principles And Troubleshooting

January 11, 2004
This application note was written to provide you with an understanding of the basic principles of fossil fuel heating systems and how to troubleshoot these systems using thermometers, digital multimeters, pressure/vacuum modules, and other accessories.
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Pulling A Good Vacuum Equals $$$ For The Contractor

December 29, 2003
Pulling a good vacuum before charging a new system with refrigerant or after a repair is essential for the proper operation of an air conditioning system. In addition to the vacuum pump, a micron gauge is an essential tool.
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Btu Buddy 9: Discovering Reduced Airflow In The Ducts

December 13, 2003
With one end of the building cool and one end warm, Bob and Btu Buddy discover an airflow problem. Find out how they track down the problem and repair the system.
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'Plain Jane' Water For Hydronics ... Not So Plain

November 28, 2003
Most hydronic systems are filled with "Plain Jane" tap water. However, today, more than ever, "Plain Jane" water may not be so plain. If you are not testing your fill water, you are guessing, and potentially compromising, the system.
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Btu Buddy 8: Burned Four-Way Valve Coil On A Heat Pump

November 15, 2003
In this edition of the Btu Buddy series, a heat pump's four-way valve is in heating mode when it should be cooling. Bob tracks down the valve problem.
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The Essentials Of Working With R-410A

November 2, 2003
The trend towards the use of refrigerant 410A continues to grow and there is a demand for technicians who are comfortable working with this higher-pressure replacement for R-22.
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Btu Buddy 7: Changing A Badly Burned Compressor

October 20, 2003
In this installment of the Btu Buddy series, Bob tackles a burned compressor. Review his procedure for cleaning up the system and replacing the unit.
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Activated Carbon For HVAC Applications

October 5, 2003
To totally "clean" indoor air, gases and vapors must be removed. For HVAC applications, activated carbon is commonly used. Why and how it is applied are detailed.
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Btu Buddy 6: Removing Water From A Wet Heat Pump System

September 19, 2003
In this edition of the Btu Buddy series, Bob is helping finish a job that a new construction crew installed. The installers left the gas line and liquid line on a heat pump turned up all weekend and it rained in the tubing. Bob must dry out the system.
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2014 MCAA Annual Convention

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Kyle Gargaro, editor-in-chief of The NEWS, hosted the 2014 ACCA CEO Forum. At the event, six well-known, highly respected company executives, Gary Michel, Ingersoll Rand/Trane; Chris Nelson, Carrier Corp.; Chris Peel, Rheem Mfg. Co.; Rod Rushing, Johnson Controls; Brent Schroeder, Emerson Climate Technologies; and Doug Young, Lennox; provided individual industry outlooks and fielded questions directly from attending contractors. Listen to the entire event on the NEWSMakers podcast. Posted on April 14.

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