Leak Testing an Air Coil

Welcome to Geothermal University online training. It is important to have a systematic approach to leak checking air coils. This video discusses types of leaks and a process for leak checking. Thanks for watching!

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Testing a Water/Refrigerant Coax

Welcome to Geothermal University online training. While it does not happen often, sometimes coaxes fail. In today’s video we’re going to discuss testing a geothermal water / refrigerant coax for a leak. Every precaution should be taken to properly diagnose a suspected failed coax. In this video, we’ll provide testing procedures and recommendations to help you diagnose a leak. When we investigate a failed coax there are three reasons for failure. The first – which is very rare – is a manufacturing defect. The second reason for failure is repeated, excessive freezing which can lead to a rupture. The third and most common, is due to water quality or corrosion. Thanks for watching!

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Flushing, Purging and Filtering the Loop

Welcome to Geothermal University online video training. One of the most critical installation procedure is flushing, purging, filtering the loop before startup. The top cause of pump failure is water quality, air and debris. This video will discuss the importance of water evaluation, filtering, removing debris and adding antifreeze. Be sure to download the IOM to review while watching the video.  Thanks for watching!

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ECM Temporary Replacement Motor

If and when an ECM motor fails, the customer need not be without heating or cooling. By temporarily installing a PSC motor and capacitor you can provide heat or cool until the replacement ECM motor arrives. Be sure to download the accompanying file at Geothermal University. Thanks for watching Geothermal University.

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ECM Motor Troubleshooting

Most of the industry use ECM motors in high-efficiency heating and cooling systems. We have found them to be very reliable. This video is designed to help technicians troubleshoot an ECM motor if a failed motor is suspected. As always, remember a failed component is the symptom, not the cause of the failure. Be sure to download the accompanying troubleshooting guide.  Thanks for watching Geothermal University!

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