| air source heat pump has very obvious characteristics of energy saving, environmental protection, safety and easy management. It is favored by many schools, hotels, families, etc., and is now widely used in hot water and heating supply systems in schools, hotels, families, etc. in and was well received.
Many problems have gradually been exposed during the use of some heat pump hot water projects. The problems include the heat pump hot water unit itself, the installation of the project, and usage management, resulting in abnormal hot water supply, excessive energy consumption, The cost of hot water is too high, etc.; as a lesson learned from the past, it is actually very simple to become a heat pump purchasing expert. You can also do it. As long as you grasp the key points of choosing a good pump, everything will be easily solved. The good or bad of the heat pump product cannot escape your sharp eyes. .
The following will teach you some of the characteristics of air source heat pumps and practical selection techniques.
The key points in choosing a heat pump unit
1. Production license:
Because the air source heat pump is a 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 State Administration of Inspection and Quarantine ( You can check the authenticity online based on the certificate number provided by the manufacturer, just in case (the following types of certificates are the same). Enterprises without a certificate can be regarded as illegal production. The products have not been tested by the national department, and the quality and performance are difficult to guarantee. At the same time, manufacturers, dealers and consumers must bear relevant responsibilities, and consumers should be cautious; taking this as a key point is mainly based on the following two points:
A. Reduce the legal risk from zero to do A purchase without legal risk;
B. You can eliminate more than 95% of heat pump products and only choose the ones you want from 5%, effectively reducing risks and workload and improving accuracy.
2. Registered trademark certificate:
According to relevant commodity circulation regulations, as a commodity, the brand of heat pump must be registered and licensed by the Trademark Office before it can be sold, to prevent some "three noes" manufacturers from causing trouble; more than 20% of them can be eliminated Unqualified heat pump products to improve the reliability of selection.
3. Performance test report:
Products that have been tested by national departments and whose performance meets relevant standards are qualified. The higher the COP value detected, it proves that the use will save more electricity. A good air source heat pump is 10% more efficient than ordinary ones. Above, so sometimes you can’t be greedy for cheap when buying, because it’s a small gain but a big loss. Good products will allow you to save more.
4. 3C certification:
The heat pump hot water unit is a national compulsory certification product. It must be tested by China Quality Certification Center and obtain the China National Compulsory Product Certification certificate (CCC certification) issued by it. For sale use.
5. Unit structure and weight:
The difference in product weight is mainly caused by three major aspects: evaporator , condensing heat exchanger and shell; units with the same structure, lighter weight units are suspected of cutting corners and using light and thin materials. Or shortage, performance will be difficult to guarantee.
6. Type of compressor :
The compressor is likened to the heart of the heat pump unit, and its performance is very important; the compressor of Emerson for commercial large-scale heat pump units is a good choice. Of course, make sure it is original and genuine. Factory, to prevent some manufacturers from shoddy and using reconditioned compressors.
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 complex problems of the heat pump unit, making the installation simpler, the control more flexible, and effective Minor failures during operation of the heat pump unit are reduced and stability is ensured.
8. Throttling technology:
Throttling technology is a key to optimizing the performance of heat pump units. Currently, there are three throttling technologies: capillary throttling, thermal expansion valve throttling and electronic expansion valve digital throttling. , using electronic expansion valve throttling technology to effectively solve the problem of frost in the heat pump unit in winter, obtain a higher energy efficiency of than , and the performance is more stable and reliable.
9. Shell craftsmanship:
A neat and beautiful appearance, well-made sheet metal, and a solid and reliable structure are the criteria for a good product. The craftsmanship of a product’s casing will reflect the positioning and manufacturing philosophy of their product. Usually the shell materials are poor. Enterprises that are not beautiful and are not willing to spend money will not invest much in other components, and most of them will be shoddy.
10. Production equipment:
Only good production equipment can make good heat pump products. At least there must be a first-class performance inspection room and testing workshop. Do you dare to want a product that leaves the factory without passing the inspection?
11. System matching level:
Whether a heat pump product can operate stably under different air and water temperatures, the systematic matching level is critical, just like the chassis control technology of a car. High-level heat pump products can not only cope with the high pressure caused by high temperatures, but also solve the frost problem at low temperatures. The unit failure rate is low and maintenance is simpler! This has a lot to do with the technical strength of an enterprise.
12. Project installation level:
A good product also requires good installation. Finding an experienced installation team is the key to the success of a heat pump hot water project, because installing a good heat pump product is a messy project. All in all, 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 crucial; it must be timely, and secondly it must be capable (it can be repaired if it breaks, and it can be repaired, but some manufacturers cannot even If the product is broken, it will not be repaired, which will cause great trouble). Thirdly, the warranty must be in accordance with national regulations (18 months for electromechanical products).
