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08Aug

Twenty years ago, we could break down all areas of HVAC diagnostics into three categories when you really think about it. It was and still is called Heating, Ventilation, and…

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01Jan

Attend MACS 2016 Training Event and Trade Show, February 11-13, 2016 at the Caribe Royale all-suite hotel and convention center in Orlando, FL and you’ll be able to take part…

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07Jul

By Steve Schaeber, MACS Technical Editor My uncle Joe recently purchased a 2014 Hyundai Sonata to use as his commuter car for getting back and forth to work. When he…

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05May

 (illustration: Sanden International)Richard Hawkins is a technical advisor at 1-800-Radiator. He recently told MACS about a question he received from one of the company’s franchise offices.I cringe whenever I hear…

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09Sep

New 2010/2011 data from the Professional Automotive Repair Technician Survey (P.A.R.T.S.) shows that only 5 percent of technicians responding to the survey keep A/C Compressors in stock. They rely on 2.8 sources when it comes time to re-stock for the three jobs per month, on average, they perform requiring this part. P.A.R.T.S. is conducted annually by Counterman magazine and tracks technician preferences in a number of product categories.

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11Nov

The compressor is usually belt-driven by the engine crankshaft, and engages through an electromagnetic clutch.

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10Oct

In a scroll compressor, a scroll shaped “paddle” rotates inside a channel. By the offset of the paddle drive pin, the compressor drive shaft rotates the paddle in an orbiting or circular motion.

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10Oct

Rotary vane compressors contain a solid rotating cylinder called an impeller. The impeller is equipped with vanes that move in and out of slots in the impeller.

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10Oct

Swash plate and wobble plate compressors

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