Geothermal University - Aluminum MCHX Repair Procedure

This video from Delphi shows the procedure for repairing an all-aluminum microchannel air coil in the field or shop.

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Geothermal University - Leak Testing an Air Coil

Welcome to Geothermal University. 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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Geothermal University - Testing a Geothermal Water / Refrigerant Coax

While it does not happen often, sometimes coax 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...

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Geothermal University - Flushing, Purging and Filtering the Geothermal Loop

Welcome to Geothermal University. 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. Thanks for watching!

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Geothermal University - 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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