These "free relief of solar water heaters" hotline since last month much reader opened applause, many readers called, come to the use of solar collectors for hot water production for maintenance personnel, to help repair.
This newspaper reporter of Qi Xiaokui / Liu Dongjie-picture
These "free relief of solar water heaters" hotline since last month opened much reader acclaim, many readers called to the use of solar collectors for hot water production to maintenance personnel come to repair help, there are many readers want to reporters to help to introduce low-cost solar load. Recently has the reporter on how Linde-year-old buy solar system, an interview with the Managing Director of the renewable energy Association of Henan.
[Optional]
First, consider the "3 + 2 + 5", the emphasis on the quality of the service know
Linde-year-old told reporters the national attention get solar energy attention, so that the solar market, many brands created in recent years, energy saving, a very colourful mix. There are more than 2,000 of such companies in Henan are sales of solar water heaters it two or three hundred. Therefore, how to choose a suitable home solar system, it is many consumers are on the head scratch.
Linde-year-old said that consumers in the purchase of the solar system, must we first get you to the "3 + 2 + 5" know. "3" refers to the quality of the products of solar energy producers accounted for 30%; "2" refers to the installation of high-quality accounted for 20%, 50% of the "5" refers to solar maker through to after-sales service. Since solar water heaters as a special collector equipment, devices, work after only semi-finished products, support for the installation and after sales service. If the installation and after sales service is not present, it will impact greatly on the use of the product. "Why?" Linde-years explains, because the solar industry low barriers to entry, many manufacturers some tubes and other things that you can access in the production purchase. Therefore, product quality and only three percent of the entire solar products. Solar products are very high installation requirements, if the installation is bad the leakage occurs not in Sheung Shui, water heater was by the wind blown, etc., to the users.
Linde-year-old said after sales service a lot after-sales service which manufacturers make solar energy requires a certain effort a good job, because the after sales service of most manufacturers agent many traders do also enable traders, away from the market, it will be much "solar orphans." Other operators of the dealer often refuse tube under the "heritage of the former after-sales.",
Therefore consumers in the purchase of the solar system, be sure to see principle for the "3 + 2 + 5", must the study comprehensive service capabilities of the provider.
【Product】
Pay attention to the valves and tanks
Linde-year-old said, many consumers do not know, lack of understanding of the solar system, how to choose, to mention a few tips for the reader, for your reference.
First of all, it should be noted that the performance of the pipe. Coating color is an integral part of which is domestic solar system that all-glass vacuum purchase should carefully monitor the coating on the glass vacuum tube that is coating called solar selective absorbing coating, due to the different manufacturing processes of the producers the difference be but are usually black, dark blue, good quality color uniformity of the coating film no scratches, no peeling or shedding phenomenon, the glass is also very smooth, support no stones or nodules on the phenomenon of glass, placed upright, not loose.
Secondly, we must pay attention to the insulation performance of the storage tank. Tank, shell
end caps to form a whole, seamless, so that anti-corrosive, life will be longer. Water tank requirements for food grade stainless steel plate, and some manufacturers take to reduce costs, is the Interior particularly thin, poor insulation effect. There are manufacturers lining stainless iron oxidation over time made will result in damage to the health of consumers. Attention to the quality of the companies have automatic argon arc welding, argon protective gas welding has welding close strong, long service life.
At the same time the insulation layer of insulating materials commonly used polyurethane foam, after the high-temperature ageing treatment, mixing of raw materials, impurities, there is not much gap, the insulating effect is very good. However, many manufacturers of polyurethane foam use, and some even with foam insulation effect plunge in a few months later, after a year of the basic insulation.
[Installation]
Bracket is very important, sanitary fittings with caution should be applied
Linde-year-old said that installed solar water heaters, console and pipes is very important. The aluminium profile is relatively more stable than the steel profile of stent, corrosion-resistant, durable. Should in the meantime during installation pointed out that the mount screws is fixed whether all screws and fittings to attract and the water is location reasonable, kettle itself has increased. Many consumers cannot be used home solar system, whose results up to a view of the water heater was blown by the wind, there are no fixed Linde-year old said.
In addition, which is main burst, the common problem of many solar water heaters in the winter and summer, "This is mainly by the number of manufacturers that caused shoddy pipes." Linde-year-old said, qualified water pipe, folded 360 ° very good, very good insulation cracks, flexibility is not shown.
If you buy home solar system must configure, select the electric blankets with the design of the electrical safety products. For other related accessories, such as automatic water device, temperature and level indication, solenoid valves, Linde-year-old recommends the careful selection, with some features seem advanced, but reliability is too many components, not high, in the course of time, it's easy to issue
