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How to Maintain Air Source Heat Pumps?

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How to Maintain Air Source Heat Pumps?

Issue Time:2021-08-25
the maintenance methods of air source heat pumps

In recent years, air-source heat pumps have been widely used in various industries due to their environmental protection, energy-saving, and easy operation advantages. If we want to extend the service life of heat pump equipment, we must pay attention to the following maintenance points.

1. Clean the filter of the hot water system of the unit before starting up and every three months during operation to ensure that the water quality of the system is clean, and to avoid damage to the unit due to dirty filters.

First, close the front and rear valves of the filter, then open the drain port and plug the wire, take out the filter and rinse it, open the water inlet valve to clean the pipeline, install the filter and plug the wire, and finally open the valve to resume normal operation.

2.Before starting up and every month during operation, check whether the power supply and electrical system terminals of the unit are firm and whether the electronic components are abnormal.

3.Check whether the water supplement, water tank, and exhaust device of the water system are normal every week, so as not to affect the heating capacity of the unit and the reliability of operation.

4.Check the seals of pipeline joints and valve assembly interfaces for leakage every day.

5.The surrounding area of the unit should be kept clean, dry, and well ventilated. Generally, the surface of the air-side heat exchanger should be cleaned once every 3-5 months to obtain a good heating effect.

6.If the downtime is long, please drain all the water in the water system, purge clean and cut off the power supply, put on the protective cover.

7.Poor water quality is one of the important reasons for the failure of the air source heat pump, the scrapping of the condenser, and the scrapping of the compressor. Therefore, it is recommended to replace the filter every two years, which can extend the service life of the equipment.

8.All the safety protection devices inside the unit are set before leaving the factory, please do not adjust by yourself. If the unit fails and cannot be solved by yourself, contact the equipment after-sales personnel in time to repair the equipment in time.

9. During use, there will be condensation on the surface of the evaporator. Sundries and dust will affect the heat transfer effect and easily damage the evaporator, so it should be cleaned regularly, usually once 1-2 months. 

First, rinse the dust on the fins with a higher-pressure water gun, and then spray a certain amount of cleaning agent (available as an air-conditioning cleaning agent) after it has a chemical reaction, and finally rinse it with a high-pressure water gun to prevent residual drugs from corroding the fins.

10. The condenser is a heat exchange device. Because a large amount of water flows through its surface, impurities in the water are easy to adhere to the surface, forming a layer of heat insulation film, which affects the heat exchange effect. Especially water with high hardness is prone to scale formation under the action of high temperature. Scale not only affects heat transfer, reduces heat exchange efficiency, but also easily blocks water flow channels and damages equipment. Therefore, the condenser must be cleaned with drugs.

Install a valve and a cleaning pump on the circulating water pipeline to form a closed circulation loop with the unit's inlet and return water. Add a liquid tank to the suction line of the cleaning pump, add 1:20 citric acid liquid to the tank, and soak 10 -20 minutes, then start the cleaning pump, clean for 20 minutes, then rinse with clean water, and rinse the liquid.

Regular cleaning and maintenance of the equipment can not only effectively improve the heat transfer effect, but also achieve the management goals of energy saving and consumption reduction. If you want to know more about the air source heat pump after reading the above content, you can get a comprehensive solution by contacting us.

As a professional heat pump manufacturer, we have accumulated rich production experience in this field. We have a professional production team and a strict quality control system, and we carry out all aspects of quality control from product design to export. And we will also provide thoughtful one-stop service and effective solutions according to the diverse needs of customers. If you are interested in our air source heat pump, please contact us immediately!
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