Common sense of Heyuan solar water heater

Does the solar water heater have heat preservation function?

It has the function of heat preservation. The vacuum glass collector tube of solar water heater is composed of double layers of glass, the inner surface of which is coated with a heat absorbing layer, and there is a vacuum between the two layers, which is equivalent to an elongated thermos bottle. Heat can only go in but not out. The water tank of the water heater is made of double stainless steel plates with polyurethane foam in the middle for thermal insulation, which has obvious thermal insulation effect. Generally, the temperature of qualified solar water heaters will drop below 5℃ every day.

Is the water in the inner container drinkable?

Do not drink the water inside unless it is specially designed drinking water and pressurized solar water heater. Because the water in ordinary solar energy is easy to produce harmful substances such as nitrate and nitrite after repeated heating, and the water inside can not be completely used up, which is easy to breed pathogenic bacteria. Even if it is used to wash vegetables, I don't recommend it (everyone in the industry knows it well). If you want to drink solar water, recommend a solar water heater with a secondary heat exchange system (almost all of them are available abroad). However, this kind of cost is slightly higher, so domestic solar energy faucets avoid this problem, and even some unscrupulous manufacturers publicly claim that the water in stainless steel liners is drinkable, which is immoral.

Can I use a solar water heater on cloudy days?

Solar energy with electric heating auxiliary function can be used. I am a single-family house in a small rural building. What should I pay attention to when installing solar water heaters? It is the best condition to install a single-door and single-courtyard water heater. You can use the method of laying pipes on the outer wall to lay hot water pipes on all floors of the bathroom. Your own water tower is higher than the water tank of solar water heater 1 meter. The pipeline should be insulated and the water heater should be fixed to prevent typhoon damage.

I am a new resident and want to install solar energy. What should I pay attention to when decorating?

First of all, contact the manufacturers or distributors with good technical quality and perfect after-sales service, and they will guide you on how to arrange the water pipes. General users only need to consider the inlet of hot water pipe and the outlet of water outlet pipe when decorating. If the user chooses the electric heating and control device, the position of the switch or control device should also be determined to achieve the purpose of convenience, safety and harmony. The outdoor installation location is generally determined by the supplier and the user through consultation. At that time, with the consent of the property or related neighbors, the installation can begin.

Which is better, the upper and lower pipes or the overflow pipes?

Because the water temperature in the water heater can reach up to 95 degrees, it is best to use high-quality aluminum-plastic pipes to prevent the aging or softening of materials from affecting normal use.

Why are the prices of aluminum-plastic pipes from different manufacturers very different?

Due to the different quality of aluminum-plastic pipes from different manufacturers, there will be great price differences, which are mainly manifested in: first, the material and thickness of plastics are different; Second, the structure of aluminum core is different, including welding type and lap type; The third is the difference between the material and thickness of aluminum core.

Can polystyrene insulation pipe be used as insulation material for water tank and pipeline of solar water heater?

Not good, because the water temperature of solar water heater can reach more than 90 degrees, and polystyrene insulation material shrinks greatly at this high temperature, which makes the insulation layer have a big gap, and poor quality will cause serious shrinkage and deformation at this temperature.

With so much water in solar energy, will the roof collapse?

Considering the load, the normal roof is generally 150kg/m2, and solar energy can be installed. If it is a light roof, it is necessary to reinforce the foundation when installing solar energy.

Does the solar package include the installation fee?

At present, solar water heaters need professional installation. The common practice in the market is that sellers install them free of charge, which means that the installation fee is included in the product sales price, but the installation of accessories can be charged separately. Because users live on different floors and choose different accessories with different functions, the cost of accessories used will inevitably vary greatly. In addition, there are different kinds of solar accessories on the market. Even if a high-quality solar water heater is installed, it will be very troublesome to use without good accessories.

How is the mounting bracket fixed?

Generally, cement pier, expansion bolt or steel wire rope are used for fixing, and the best fixing method is selected according to the roof condition.

Will the expansion bolt damage the waterproof layer?

If only expansion bolts can be used, the expansion bolts may damage the waterproof layer and need to be waterproof.

Is solar energy afraid of typhoons?

Solar energy removes the reflector, which greatly improves the windproof performance of the whole machine. In addition, when installed, the solar energy and the roof are firmly fixed together, which can resist typhoons. When there is a typhoon, make sure that the solar energy is full of water, so that the wind resistance is better.

Do you need lightning protection when installing water heaters?

(1) Before installing the water heater, the lightning rod beside the roof water heater should be effectively raised to more than half a meter above the top of the water heater, and the water tank of the water heater must be effectively grounded;

(2) The indoor water outlet must be equipotentially connected with the ground wire; (3) Don't use the water heater in thunderstorm weather. ● Common sense of daily use

What problems should be paid attention to in the use of solar water heaters?

1, pay attention to the water supply time.

2. Determine the amount of water according to the weather to ensure that the water temperature is appropriate when taking a bath.

3. Regularly check whether the pipes, exhaust holes and other parts of the water heater are working normally.

4. In areas with serious air pollution or windy sand and dry weather, the vacuum tubes should be cleaned regularly.

5. After the water heater is installed, non-professionals should not easily move and load and unload the whole machine to avoid damaging key components.

How to judge whether the solar water heater is full of water?

Generally, solar water heaters are equipped with overflow pipes, and whether the water is full can be judged according to whether the overflow pipes are draining water. In addition, a water level controller can be equipped, and a water level indicator can be observed. When the water is full, it will automatically turn off.

When is the best water supply time for solar water heaters?

When there is no water in the vacuum tube, that is, when the air is dry, the temperature in the tube can reach about 250℃. At this time, the water supply is easy to cause the vacuum tube to burst, so the water supply in the water tank or the first water supply must be carried out half an hour before sunrise or after sunset.

Will the solar water heater do harm to human body? What aspects of safety should be paid attention to when using solar water heaters?

Pay attention to the use safety of solar water heaters: First, prevent users from being scalded. There have been several scalds in China in recent two years. People who are burned often think that the temperature of hot water generated by solar energy will not be too high. In fact, in summer, the water temperature in solar water heaters often reaches above 80℃, and users will be scalded if they are not careful. When taking a bath, they should first pay attention to the part of cold water stored in the water pipe. Once the water in the solar water heater arrives, the temperature will suddenly rise above 80℃, causing burns. The second is to fix the water heater to prevent the typhoon from blowing it away from the house and causing damage.

Will the solar water heater go bad without using it for a long time?

Vacuum tube solar water heater has high efficiency. On sunny days in summer, the water temperature can reach the boiling point in less than two days. If water is not used for a long time, such as business trip and travel, the water tank will be in a state of high temperature and high pressure for a long time, which will promote the aging of the sealing ring and accelerate the aging and shrinkage of polyurethane. Sometimes, the exhaust is not smooth, and the water tank will be damaged due to excessive pressure, forming scale and shortening the life of the water tank. Therefore, if you are away from home for a long time, you should arrange for others to put cold water on the water surface often, or put a cover on the vacuum tube collector to keep out the sun, and then remove it when you get home.

Can the solar water heater take a bath with hot water that is not used for several days?

The water that solar water heaters don't use for a few days is usually hot water, which reaches above 70℃, so that the water temperature can be kept at 60℃-70℃ for a long time. This temperature area is an excellent temperature for bacteria to breed in water. Therefore, if the hot water that has not been used for a few days or a long time is of poor quality and full of bacteria, it should be discharged, and it is not necessary to take a bath or drink it as boiling water. This kind of water is harmful to the skin, so use it for a long time.

Should we put solar water in winter?

No, the water in the water tank has a heat capacity, which means that the water in the solar water tank has a certain heat capacity. The greater the amount of water, the greater the heat capacity, which can delay the freezing speed. If water is drained, the water in the vacuum tube cannot be drained, and the heat capacity becomes smaller, which makes it easy to freeze.

How to use solar water heater in winter?

Low sunshine intensity, short sunshine time and low ambient temperature. The expected temperature may not be reached on the day of water supply. At this time, the water quantity of the water tank can be properly controlled, and the electric auxiliary system or the gas auxiliary system can be started when necessary. Of course, if you want to use a solar water heater, you must ensure that the water in the pipeline does not freeze, otherwise the water temperature in the water tank will not help.

There is no running water around. Can you install a solar water heater?

When using solar water heaters in areas where there is no running water, water can generally be supplied by water pump, and an auxiliary water tank with the same height as solar energy is added to store cold water, so that it can be cool when taking a bath.

Can you install solar energy if the water quality is not good?

Solar energy can be installed, but it will shorten the life of vacuum tube and electric heating.

Can I use solar energy because the water pressure is not enough?

When the local water pressure is insufficient, the booster pump can be used to solve this problem.

Can electric heating be used for a long time?

Electric heating is an auxiliary device of solar water heater, which will only be started when the water temperature is not enough. Power off after reaching the preset temperature, and it is not allowed to use it while heating, otherwise there is a danger of electric shock, and the water level will drop, which will cause dry burning and damage the equipment.

● Daily Frequently Asked Questions

Why can't the hot water come out?

Due to hot water 1, the vacuum tube is damaged and needs to be replaced; 2. The sewer pipe, valve or joint leaks, and the sewer pipe needs maintenance; 3, tap water pressure is high, hot water can't flow out, so turn down the tap water flow; 4, the water heater for multi-channel water supply, there is a string of water phenomenon, must install independent valves, and close the valve; 5. If a fully automatic auxiliary water tank is installed, it is also possible that the ball valve in the auxiliary water tank is not tightly closed or fails, resulting in the continuous replenishment of cold water and the decrease of water temperature, and it is necessary to replace the ball valve and related components.

Why does solar energy leak?

The reasons for solar water leakage are: 1, the vacuum tube is damaged and needs to be replaced; 2, silicone ring seal is lax or damaged, replace the silicone ring; 3. The overflow pipe or exhaust pipe is blocked, which causes the water tank to deflate and needs to replace the main water tank; 4, indoor water mixing valve string water, need to adjust the water mixing valve to the hot water side or cold water side. 5, the water pipe pressure is too high, the automatic valve is not tight, and the pressure reducing valve is needed.

Why do ordinary solar water heaters burst or deflate?

Ordinary solar water heaters have low pressure bearing capacity, and generally only one exhaust hole is left. When installing, the exhaust hole is blocked by foreign matter or the diameter of the exhaust hole is too small, so the pressure can not be effectively released (positive pressure or negative pressure) when adding water or draining water, or the local water pressure is too high, and the water flow exceeds the circulation capacity of the exhaust hole, so that the bucket is compressed and the water heater will expand or deflate. For example, in winter, poor heat preservation causes the vents to be blocked by ice, and the materials used for overflow/vents are steamed and softened for a long time to block the vents. Diameter of exhaust and overflow fittings used in installation, etc.

What should I do if the electric heating power is too small and the temperature rises too slowly?

At present, the total electricity consumption capacity of urban families is limited, and there are many household appliances. Electric heaters equipped with solar water heaters are suitable for the allowable range of most household electricity consumption. Generally, the problem of slow heating can be solved by heating in advance. Because the electric heater is integrated with a thermostat, there is no need to worry about high water temperature or danger when no one is around. If a water temperature control device is installed, it can be set to constant temperature or timed automatic heating mode.

Why do pipes break easily?

Pipes are plastic products, which are easily weathered in the sun and are particularly brittle. In addition, hot water and cold water often alternate in the pipeline, which is more likely to lead to the reduction of the service life of the pipeline. Customers want to be cheap when installing. Considering the cost of installation materials, some dealers often use ordinary quality products and do not take measures to prevent sunlight from damaging the pipeline. It is suggested that customers should not consider the temporary cheapness when buying solar energy, which will bring trouble in the future. You can consider using normal PVC water pipes to connect solar energy in one step, and then make necessary insulation and sun protection materials, so that the service life of the pipes will be greatly improved, the after-sales problems will be reduced, and of course the cost will increase, depending on the wishes of consumers.

In very sunny weather, the temperature of water is not high. What is the reason?

1. There are obstacles such as trees and tall buildings above the water heater. The solution is to remove obstacles or re-select the installation location.

2. The water supply valve is not closed properly, and the hot water in the water tank is pushed out by tap water (cold water). The solution is to replace the water supply valve.

3. Too much sediment in water (such as well water) is deposited in the vacuum tube, which affects the heat collection and circulation. The solution is to take the water heater apart and wash it with detergent and clean water. This is an example.

4. The local air pollution is serious, and there is dust on the surface of vacuum tube. The solution is to brush the vacuum tube.

5. Scale accumulates in the heat collector and is removed.

6. The vacuum degree of the collector tube is reduced, and the heat collection efficiency is lost. Replace the collection tube.

What is the cause of solar water leakage?

1. The sealing ring of the collection pipe is damaged. Replace the sealing ring of the collection pipe.

2. The weld of water tank liner is cracked. Replace the water tank.

3. The welding point of the heat exchanger bracket is cracked. Replace the water tank.

4. If the residue of the electric heating hole is not clean or the sealing ring is damaged, please clean the residue of the electric heating hole or replace the sealing ring.

5. If a pipe fitting is broken indoors or outdoors, check the specific position and repair it.

In winter, it can't get hot water.

1. The upper and lower water pipes are frozen and thawed.

2. Water supply and drainage pipeline leaks and pipeline maintenance.

3. The outdoor pipeline is not insulated or the joint of insulation material is not tight, and the electric heating belt is not enabled, so the pipeline is insulated or the electric heating belt is enabled.

4. The air valve is not tight. Replace the air valve.

5. The antifreezing device is not tight. Replace the anti-freezing device.

6. The siphon leaks, and check the siphon joint.

At this time, the dealer can keep the pipeline warm, and can also heat the pipeline with electrothermal antifreeze tape (plate). In addition, there are techniques that can be used: first, empty the water tank after using hot water at night and fill it with water the next morning. Second, when it is coldest, open the hot water valve and slowly drip hot water to prevent freezing. At present, many manufacturers emphasize winter use as the standard in their design concepts, and solar water heaters are getting better and better in winter.

Solar energy, whether there is a problem with the main engine or other electric heating belts and auxiliary electric heating, needs professional maintenance. Users are also advised to choose powerful manufacturers when purchasing solar energy.

The disadvantage of vertical tube solar energy is that the water in the collector tube can not be discharged for a long time, and the old water stays in the collector tube for a long time, which leads to poor water quality and bathing is not as good as fresh water. With the extension of service time, the scale in the collector tube increases, which greatly affects the heat absorption of the collector tube, and the water in the horizontal tube solar collector tube can be discharged, which overcomes the main shortcomings of vertical tube solar energy. The cleaning and maintenance of solar water heater is a device that uses solar energy to heat water from low temperature to high temperature, and it is a kind of thermal energy product. Solar water heaters have become an indispensable part of people's lives because of their time-saving, electricity-saving and energy-saving characteristics. However, when people fully enjoy the convenience brought by solar water heaters, many consumers know little about how to clean solar water heaters. Let's learn how to clean the solar water heater.

Before we know how to clean the solar water heater, let's understand the necessity of cleaning the solar water heater.

Cleaning solar water heaters is not only a hygienic habit, but also can prolong the service life of solar water heaters. If you don't clean the solar water heater regularly, it will not only reduce its use value, but also bring you unnecessary troubles, such as bursting and leaking.

Benefits of cleaning solar water heaters regularly:

1. Shorten heating time;

2. Water heaters store more and more hot water;

3. Save electricity;

4. Water impurities have gone, and care for your skin;

5. Avoid scale accumulation. The heat of the vacuum tube can't be dissipated, which leads to explosion.

So how to clean the solar water heater?

1. Open the water inlet of the solar water heater;

2. Add the scale remover of the solar water heater into the water storage tank;

3. Automatic thermal circulation for 20-30 minutes, so that the washing liquid can fully contact all parts;

4. Open the drain pipe and discharge the cleaning liquid;

5. Fill the water tank with water and recycle it for two minutes;

6. Drain the circulating water to finish cleaning and descaling.

During the maintenance of solar water heaters, users who just started using them may not be very clear. After a long time, they will gradually explore the experience and rules.

1. When taking a shower, if the water in the solar water heater has been used up and people haven't washed it clean, you can take cold water for a few minutes, and use the principle that cold water sinks and hot water floats to push the hot water out of the vacuum tube, and then you can take a shower, but you must discharge the cold water from the water pipe.

2. Using the principle of 1, if there is still a little hot water in the solar water heater after bathing, you can wash a person with cold water for a few more minutes.

According to the weather forecast, we can get a satisfactory water temperature. If it is sunny tomorrow, you can irrigate it; If it is cloudy or cloudy, the upper part of the water tank is filled with water; If it rains, keep the raw water without cold water.

4. After taking a bath at night, if there is still half of hot water of nearly 70 degrees in the water tank of the water heater, in order to prevent excessive heat loss (the higher the water temperature, the faster the heat loss), the water quantity should also be determined according to the water temperature in the weather forecast.

What size is more suitable for buying common sense? Generally, the water used for bathing in the family is the lowest (the water temperature is 45-50 degrees); 30L male and 40L female, if the domestic water consumption includes the kitchen, the total water consumption can be estimated according to the per capita water consumption of 40L; The water temperature of domestic solar water heaters is generally calculated at 50-60 degrees in winter, and the water capacity conversion of water heaters is determined according to the actual situation of water heaters.

What is the "anti-dry burning" of electric heating?

"Anti-dry burning" means that the electric heater itself has the ability to withstand dry burning for a certain period of time without a heated body (water); Second, the electric heating integrates the automatic temperature limiting control element, which will automatically cut off the power supply when it reaches the limited temperature, so that the electric heater will not burn out after running without water for a long time.

Is it better to choose an overhead water heater or an immersion water heater?

Top water means that hot water is pushed out of the water tank and enters the pipeline with cold water. Overhead water heater, also known as pressure water heater, has the advantages of high water pressure, good spraying effect, high bathing comfort and high product price. Falling water heater means that the water of the water heater naturally falls into the water pipe by atmospheric pressure. This kind of water heater has low outlet pressure, low comfort and low product price.