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Understanding Compressor Electronics Chapter 4
Download your complimentary copy of Chapter 4.
The eBook series will consist of four chapters, which will be released over the next couple months. Content of the eBook will include:
Understanding Compressor Electronics Chapter 3
Download your complimentary copy of Chapter 3 today, and be sure to look for the next chapters in the coming weeks.
The eBook series will consist of four chapters, which will be released over the next couple months. Content of the eBook will include:
Understanding Compressor Electronics Chapter 2
Download your complimentary copy of Chapter 2 today, and be sure to look for the next chapters in the coming weeks.
Today, electronics are being integrated into everything around us, including HVACR systems, to help enhance product performance and reliability. Emerson Climate has developed this eBook to take an in-depth look at the dynamics of compressor electronics in the HVACR industry and how these electronics are helping to advance HVACR systems.
The eBook series will consist of four chapters, which will be released over the next couple months. Content of the eBook will include:
Download Understanding Compressor Electronics Chapter 1
Download your complimentary copy of Chapter 1 today, and be sure to look for the next chapters in the coming weeks.
Copeland Scroll Compressor
The Copeland Scroll® ZRK5 compressor has been designed for residential and light commercial air conditioning applications. With the addition of the ZRK5 compressor comes a replacement compressor built upon the quality and established scroll technology that only Copeland Scroll technology can deliver. The Copeland Scroll ZRK5 compressor includes 20 new design enhancements that provide enhanced temperature control and improved efficiency, which adds expert reliability and performance you can rely on.
Copeland Scroll ZRK5 offers a line of replacement compressors, available from 1.5 to 5 horsepower, which deliver new levels of performance. The compressor is optimized for R-22 and R-407C refrigerants, which are designed for post-2010 aftermarket service applications. Copeland Scroll has opened the door in the HVAC business by providing a compressor that is both environmentally friendly and innovative.
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Due to the phase-out of hydrochlorofluorocarbons, Emerson focused on designing a product line for aftermarket replacement needs. The ZRK5 has been engineered with the latest in technology and innovation. ZRK5 is available with polyolester (POE) lubricants to increase compatibility with both R-22 and hydrofluorocarbon refrigerant applications like R-407C. The product line for the ZRK5 compressor has been consolidated from 51 to 12 models for easier compressor stocking.
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Looking for Technical Data?
3-1/8" Dry Manifold Gauge
Pressure gauges are classified as either analog or digital and are rated by their precision as it relates to the scale of the gauge. They typically come in two options. The first is 3-2-3, or Class B, gauges. With Class B gauges, the positive pressure range is divided into three sections. The middle half of the range is the most accurate, within 2% of the full scale. The first and last quarters of the gauge are accurate within 3% of the full scale.
The second option is 1%, or Class 1, gauges. With Class 1 gauges, there is a single pressure range and accuracy is 1% of the full scale within the positive range.
The variation between 3-2-3 and 1% accuracy may not seem significant, but the difference between 1 and 3 percent full scale is considerable. For example, if you’re working with an 800 PSI gauge, a 3-2-3 gauge can be off by plus or minus 24 PSI of the true reading, whereas a 1% gauge can be off by plus or minus 8 PSI of the true reading. For the highest accuracy, choose a Class 1 or digital gauge with 1% accuracy or better.
Source: The BUZZ by Yellow Jacket
First of all, it’s normal for the reading to increase after the system is isolated from the vacuum pump, and a rise in microns doesn’t necessarily mean you have a leak or that the gauge is defective. Assuming you’re using a digital gauge (and you should), it’s highly accurate and extremely sensitive to what’s happening in the system.
If the reading rises rapidly at first but levels off in the 1000-3000 micron range, chances are the rise is related to the out-gassing of your charging hoses. One solution is to use a 4-in-1 core removal tool, which lets you completely isolate the charging hoses by giving you the ability to valve them off and measure the vacuum of the system only.
If the reading rises at a steady rate and doesn ’t level off, then you probably have a leak. You’ll need to find and fix the leak, and repeat the evacuation process to make sure it’s fixed.
Source: The BUZZ by Yellow Jacket