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How to Install the Ground Source Heat Pump Correctly?

How to Install the Ground Source Heat Pump Correctly?

Oct 26,2021
how to install a ground source heat pump

The ground source heat pump air conditioner adopts an energy-saving and environmentally friendly ground source heat pump system, and its cold and heat source adopt a buried tube ground source heat pump system that is flexible in installation and easy to control, also known as a soil-coupled heat pump system.

Specifically, the vertical buried pipe method is used, water is used as the carrier of cold and heat, and the water circulates between the heat exchange pipe buried in the soil and the heat pump unit to realize the heat exchange between the unit and the earth. The following are the specific installation steps of the ground source heat pump.


Drilling is also known as ground source heat pump drilling, which is the first process of ground source heat pump buried pipes. Before drilling, you should understand the functions and precise positions of the existing underground pipelines and underground structures in the buried pipe site, and avoid them to avoid damage.

The total length of the drilling is determined by the area of the building and the required cooling capacity. The hole must be accurately calculated; when drilling, ensure that the drill pipe is vertical to ensure that each vertical hole is parallel to prevent hole channeling.

Vertical down tube

The down tube is one of the key points of the project, and the depth of the down tube must be ensured when running down the tube. After the drilling is completed, there is a large amount of water in the hole. Because of the buoyancy of the water, it will cause certain difficulties in pipe release.

Moreover, due to a large amount of sediment in the water, sedimentation will reduce the effective depth of the hole. For this reason, every time a hole is drilled, the U-shaped tube should be put in in time, and fixing measures to prevent floating should be taken.

Horizontal pipe laying, pipe connection

Before laying the pipe horizontally, lay fine sand equivalent to the thickness of the pipe diameter on the bottom of the excavated trench. During installation, the pipe should not be broken or kinked, there should be no stones in the sand, and the turning point should be smooth and fixed. measure.

Then connect the pipelines in each zone into a system according to the requirements of the drawings, and respectively lead them to the installation location of the host in the computer room. The hot melt or electric melt connection of the pipeline must be carried out in accordance with the manufacturer's technical specifications and standards.


Backfilling includes two parts: vertical downpipe and horizontal pipe laying. Regardless of the type, a pressure test must be performed before backfilling to ensure that there is no leakage. The grouting material of the vertical hole for backfilling of the vertical downpipe should be a mixed slurry of bentonite and spun yarn or a special material. The mud sediment produced during the drilling process can also be used to ensure that the drilling grouting is dense and there is no cavity, otherwise, it will reduce the heat transfer effect.

The horizontal pipe laying backfill should be small, loose, uniform, and free of stones and soil. The backfill compaction process should be uniform, and the pipeline should not be overheard.

Indoor partial installation

After the equipment room and the outdoor part of the terminal are installed, the indoor part is installed. The indoor part installation includes the installation of the host, the indoor air conditioning terminal, and the heating terminal. Before installing the host, carefully check whether the specifications and models of the delivered equipment are consistent with the configuration plan. And according to the actual situation on-site to determine the installation location, and then install.

The installation of a ground source heat pump is a systematic project. Compared with ordinary central air-conditioning, its complexity and difficulty are much higher. If you cannot complete the installation process yourself, you should ask professional staff to install it to ensure the standardization and correctness of the installation. If you feel that the above content is not very effective for you after reading the above, you can get a comprehensive solution by contacting us.

As an experienced heat pump manufacturer, we have a professional production team and strict quality inspection system, which can control the quality of the products in all directions. We can also provide effective solutions and thoughtful one-stop service according to the actual needs of customers. If you want to know the specific models or other parameters of our products, please do not hesitate to contact us immediately!

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