With the gradual rise of the air energy heat pump market, more and more households begin to choose to use air energy heat pumps for heating. However, due to a lot of non-standard use, the service life of the unit is shortened and the failure rate of the machine is increased frequently. Wenuo Air Energy Group has summarized several problems that should be paid attention to when using air energy heat pump heating, which can effectively reduce the failure rate of the unit and ensure the long-term and efficient operation of the unit.

The larger the capacity of the air energy water heater, the better

There is a Chinese idiom called "more is better", but it doesn't work when it is put in an air energy water heater. The air energy water heater belongs to the water storage type water heater, and the capacity of the water tank determines how much hot water it can provide at one time. As a result, some friends felt that there were many people in their families. They chose large air energy water heaters of 150L or more than 200L, and felt that the more hot water they could provide, the better. In fact, on-demand choice is the right choice. If the capacity of the selected air energy water heater is too large, not only the heating time becomes longer, but also the power consumption of the equipment increases. Finally, I found that there were not many people in my family, and the hot water could not be used up. This was a waste of time and increased the cost of electricity and water. Generally speaking, the daily average hot water consumption of one person is calculated as 50L, the family of three people is suitable for 150L equipment, and the family of four people is suitable for 200L equipment.

2. Cut off the power supply of the air energy heat pump when there is no one

Some new users of the air energy heat pump think that when there is no one at home, the power supply of the air energy heat pump heating system should be cut off to save electricity.  

As the air energy heat pump uses water as the medium for heat transfer, once the air energy heat pump is suddenly powered off, the temperature of water in the heating system is very likely to drop sharply, which may freeze the equipment.  

The correct approach should be to reduce the set temperature of the air energy heat pump unit and minimize the water flow in the pipe. The purpose of this is to ensure that there is a small amount of hot water circulating in the pipeline to prevent the pipeline from freezing. If it is necessary to turn off the air energy heat pump when going out for a long time, the water in the air energy heat pump pipeline shall be drained to prevent related equipment from freezing.

3. The air energy heat pump cannot be used for heating in ultra-low temperature climate

Some friends think that the air energy heat pump is only suitable for the southern region and cannot be used at low temperatures in the north. This is also a common misconception. This is not the case. So many regions in the north have implemented the "coal to electricity" policy. From Shanxi, Shandong, to Jilin and Inner Mongolia, the winter temperature in these regions is not high, and the lowest temperature can even reach minus 30 ℃. At present, these regions are also actively popularizing air energy heat pump heating.

4. High cost is the problem of heat pump unit quality

As a new type of heating equipment, air energy heat pump has begun to be widely used in northern areas, and residents in these areas still have a vague understanding of this heating system. Some residents will first point the finger at the air energy heat pump unit after finding signs that their homes are not warm enough or the equipment is relatively expensive.  

But in fact, the factors that affect the heating effect of the air energy heat pump include all aspects: the enclosure structure of the house, the outlet water temperature, the heating end and the design and installation of the entire system. If your home is not warm enough or you feel that it costs a lot of electricity, you'd better ask a professional to make a field visit and adjust the equipment.  

5. The higher the outlet water temperature, the better

(1) In order to achieve the best heating effect, many users will make the outlet water temperature of the air energy heat pump higher than 41 ℃. For the setting of the outlet water temperature of the air energy heat pump, the heating capacity will decrease by 1%~2% every time the outlet water temperature increases by 1 ℃.  

(2) In the case of similar enclosure and other conditions, the higher the outlet water temperature is, the lower the efficiency will be, and the power consumption of the air energy heat pump heating system will increase accordingly.  

(3) When different heating terminals reach the same temperature, the outlet water temperature required is also different. When the floor heating is used as the end of the air energy heat pump heating system, its requirements for the outlet water temperature of the air energy heat pump are lower than the requirements for the outlet water temperature of the air energy heat pump heating system when the radiator is used as the end, and this temperature difference may reach 10 ℃

6. If the outdoor temperature is low in winter, the outdoor unit should also "wear clothes"

Some users, when using air energy heat pump for heating, are always worried that the low outdoor temperature will affect the operation of the unit, or even that the external machine will be damaged by freezing, so they cover the external machine with a carton or other covers. Some users even cover the entire external machine.  

This practice is contrary to the working principle of the air energy heat pump, which prevents the heat pump from obtaining heat energy from the air, and also easily causes the cover to be inadvertently brought into the machine by the wind blades, thus affecting the normal operation of the system. Therefore, try to keep the surroundings of the unit clean, dry and well ventilated, and do not stack sundries to avoid blocking the air inlet and outlet.

7. Learn how to deal with host failures?

When the air energy heat pump host is running, it is inevitable that there will be failures. At this time, users do not need to panic. They cannot move the function keys on the control panel or move the host at will. Because this is not only useless, it may also make the fault more serious.

8. Do not accumulate sundries around the host?

Air energy heat pump heating is to absorb the heat in the air, and then vaporize it through the evaporator, compress it into high-pressure gas through the compressor, and then enter the condenser for liquefaction, and transfer the absorbed heat to the heated water. In this way, it continuously absorbs the heat from the low temperature source and outputs the heated water, directly reaching the predetermined temperature. If there are sundries around the host and the distance is relatively close, the heat exchange effect will be affected. In general, there should be at least 80 cm around the host.

If the ventilation of the installation position is not good, the heating effect of the machine will be affected, so pay attention to cleaning more; This is because the main fan blows out cold air. If there are sundries in front of it, the discharge of cold air will be affected, which will lead to insufficient heat in the air and affect the heat exchange effect. Therefore, the front of the fan should be free of obstructions within 2 meters. If it is too close, it may send the cold air back to the host.

Finally, timely clean the attachments on the evaporator. During heat exchange, the host will suck some leaves or other sundries onto the evaporator. In addition, in areas with severe smog, there are many pollutants such as dust in the air, which will also pollute the evaporator surface. If it is not cleaned in time, the heat absorption effect of the evaporator will be affected

9. Clean the defrosting water in time?

The installation time of the "coal to electricity" project is quite urgent, and sometimes the installation is not very standardized. If the drainage pipe after defrosting is not properly handled, it may cause the water flow after defrosting to the ground, and ice will soon form in cold weather, which will not only inconvenience users to travel, but also damage the unit. Therefore, in this case, the user had better clean up in time, and handle the drainage problem with the assistance of after-sales personnel to eliminate hidden dangers.

10. Understand the correct energy-saving methods

Generally speaking, most users use the air energy heat pump for heating when the temperature is low at night, and may turn off the host when not in use during the day. In fact, this is dangerous, because the heat generated by the air energy heat pump unit is transferred through water as a carrier. If the power is cut off when it is used in a low temperature environment, the host is likely to be frozen. The correct method should be to set the set temperature of the unit to the minimum when the main engine is not required to work, so that the unit can ensure the antifreeze function to work, which can effectively solve the problem of energy waste and unit antifreeze.

In addition, after a long passive power failure, the antifreeze of the pipeline is a problem. This is likely to happen in rural areas. If the power outage lasts for a long time, users should take certain measures to prevent the host from freezing, open the unions and valves, and drain the water in the pipeline. In this way, even if the power is cut off, the pipeline and host can be prevented from freezing due to low temperature.

11. Avoid randomly touching the function keys of the control panel

There are many keys on the control panel of the host, some of which are used to regulate the water temperature, and some of which are timed. If the user tampers with them, the normal operation of the host may be affected. For example, if the timer key is pressed, the host may not start when it needs to work.

During installation, the installer will set the water temperature and tell the user which keys can be moved and which keys should not be moved randomly. Users generally only need to adjust the outlet water temperature. When the indoor temperature is not enough, they will raise the outlet water temperature a little. If the indoor temperature is too hot, they will lower the water temperature.

In addition, users should not set the room temperature too high in pursuit of "heat", because the unit will work longer and consume more power when the temperature is high. The room ventilation shall also be carried out when the outdoor temperature is high in the daytime.

To sum up, as a new type of heating method, air energy heat pump is popular, but some users still have misconceptions. Therefore, before purchasing and using it, we must do a good job of "homework" and really understand its working principle, so as to correctly use and maintain the performance of the unit!