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Cleveland HVAC Blog

4 Tests to Optimize Your Geothermal System Operation

Posted by Paul Wadsworth on Mon, Jan 30, 2012 @ 10:57 AM

optimize your geothermal systemA geothermal heating and cooling system can position a homeowner for significant gains in energy savings, as well as comfort and being kind to the environment. But if the installers don’t follow the appropriate geothermal system operation guide, the system won’t operate at peak capacity -- meaning your energy savings and comfort can become compromised. While a geothermal system is a highly complicated system beyond most homeowners’ knowledge, it’s helpful to know what steps an installer should take. After all, it’s your comfort and savings at stake.

A geothermal heating and cooling system is comprised of a series of underground loops within which a liquefied solution travels through to gather the earth's energy in order to deliver it into your home. As a result, the ability for liquid to travel through the pipes, pressurization and condition of the liquid is all critical to smooth operations. Testing its operation should include these steps:


Flushing the system prior to running it helps to remove any debris that has gathered in the pipes, like shavings from the pipes or dirt. These elements aren’t dangerous for the pipes, but they are for the pump.


This step prevents air from gathering in the piping. And trapped air will eventually lead to corrosion and system failure.

Checking Flow Rates

Most residential systems are comprised of several sections of piping, and the flow rate will vary as each section branches off from the header. Therefore, your technician should evaluate each section to assess its flow rate. And the flow rate depends on the pipe size and diameter.


A proper level of pressure is critical to ensuring the system’s efficiency. But pressurizing the system can be tricky, because weather conditions impact the expansion of the piping. For instance, in warmer weather, the pipes will expand, which leads to decreased pressure. An ideal pressurization is generally 40 pounds per square inch.

For expert installation and servicing of geothermal systems, contact northeast Ohio’s leading HVAC experts, serving the area since 1936, P.K. Wadsworth Heating & Cooling. We use the industry-standard geothermal system operation guide for every installation that we perform. Give us a call today.

Photo Credit: las-initially

Topics: hvac maintenance, geothermal heat pumps, geothermal systems, preventive HVAC maintenance

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