How to identify qualified air source heat pumps

How to identify qualified air source heat pumps

Air-source heat pumps have the characteristics of energy saving, environmental protection, safety and easy management. They are favored by many schools, hotels, and families. They are now widely used in hot water and heating supply systems in schools, hotels, and homes. Well received.

However, some heat pump hot water projects have gradually exposed many problems during the use process. The problems include the heat pump hot water unit itself, project installation, use management, etc., resulting in abnormal hot water supply, excessive energy consumption, and heat Consequences such as high water cost; lessons learned from the past, and the teacher of the next, becoming a heat pump procurement expert is actually very simple, you can, as long as you grasp the key points of choosing a good pump, everything will be solved easily, the good and bad heat pump products will definitely not escape you Fiery eyes.

　　Okmarts.com, let you learn and master some of the characteristics of air source heat pumps and practical selection techniques.

　　The key point of choosing a heat pump unit

1. Production license: Because the air source heat pump is a professional product with strict technical requirements, the product you want to choose first depends on whether it has obtained the national industrial product production license issued by the General Administration of Inspection and Quarantine (according to the certificate number provided by the manufacturer Check the authenticity online to prevent forgery. The following types of certificates are the same). Unlicensed companies can be regarded as illegal production. The quality and performance of the products are not tested by the national authority. At the same time, manufacturers and distributors Both consumers and consumers must bear relevant responsibilities, and as consumers, we should be cautious; taking it as the first key point is mainly based on the following two points:

　　A. Reduce the legal risk from 100% to zero, and make a purchase without legal risk;

　　 B. More than 95% of heat pump products can be eliminated, and only 5% of the heat pump products you want can be selected, which effectively reduces risks and workloads and improves accuracy.

2. Registered trademark certificate: According to the relevant commodity circulation laws and regulations, as a commodity, the brand of heat pump must be registered and licensed by the Trademark Office before it can be sold. This prevents some "three noes" manufacturers from making trouble; more than 20% of unqualified products can be eliminated Heat pump products improve the reliability of selection.

3. Performance test report: After testing by the national authority, the product whose performance meets the relevant standards is qualified. The higher the cop value detected, the more electricity will be saved. A good air source heat pump is more than 10% higher than the ordinary one. , So sometimes you can't be greedy for cheap when you buy, because small losses are big, good products will let you save more.

　　4, 3C certification: The heat pump hot water unit is a national compulsory certification product, which must be tested by the China Quality Certification Center and obtained the China National Compulsory Product Certification (CCC certification) issued by it before it can be sold and used.

5. Unit structure and weight: There are three main factors that cause the difference in product weight: evaporator, condensing heat exchanger and shell; units with the same structure and lighter weight units are suspected of cutting corners, thin or short materials, and performance It is difficult to be guaranteed.

6. The type of compressor: The compressor is likened to the heart of the heat pump unit. Its performance is very important. At present, the compressor of Copeland in the United States is the best commercial large heat pump unit. Of course, it is necessary to ensure that it is the original factory. , In case some manufacturers use reworked compressors with shoddy charging.

7. Electronic control technology: If the compressor is the heart of the heat pump, then the electronic control is the brain of the heat pump. An excellent electronic control motherboard can effectively solve the complicated problems of the heat pump unit, the installation is simpler, the control is more flexible, and the heat pump is effectively reduced The stability of the unit is guaranteed for minor failures in operation.

8. Throttle technology: Throttle technology is a key to optimizing the performance of heat pump units. At present, there are three types of throttling technologies: capillary throttling, thermal expansion valve throttling, and electronic expansion valve digital throttling, with electronic expansion valve throttling technology. In order to be advanced, it can effectively solve the problem of frosting of heat pump units in winter, obtain higher energy efficiency ratio and more stable and reliable performance.

9. Shell technology: neat and beautiful appearance, well-made sheet metal, stable and reliable structure are the standards of a good product. The shell technology level of a product will reflect the positioning and manufacturing concept of their product. Usually the shell material is poor and unsightly , Enterprises that are not willing to spend the cost will not invest much in other components, mostly shoddy manufacturing.

　　10. Production equipment: Only good production equipment can make good heat pump products. At least there must be a professional performance inspection room and testing workshop. Do you dare to ask for a product that has not passed the inspection?

　　11. System matching level: Whether a heat pump product can operate stably under different temperatures and water temperatures, the matching level of the system is critical, just like the chassis control technology of a car. High-level heat pump products can not only deal with the high pressure caused by high temperature, but also solve the frosting problem of low temperature. The unit has a low failure rate and easier maintenance! This has a lot to do with the technical power of an enterprise.

12. Engineering installation level: A good product also requires a good installation. Finding a professional and experienced installation team is the key to the success of a heat pump hot water project, because the installation of a good heat pump product is a mess. Yes, energy-saving projects have become energy-consuming projects, which shows the importance of installation.

13. After-sales service: Any product has the possibility of failure. Timely and capable after-sales service is very important; If the product is broken, it will not be repaired, so the trouble will be big), and thirdly, it must be guaranteed in accordance with the national regulations (18 months for electromechanical products).