Split Heat Pump System for House Heating and Cooling R32 ERP A++++ for Europe EVI
With the continuous improvement of living standards, the heating methods in winter are also gradually diversified. In recent years, floor heating has become increasingly popular in the southern heating market, especially water heating occupies most of the heating market. However, water heating needs reliable and stable heat sources to play an efficient heating effect, and gas wall mounted furnace is one of the most important heating sources. With the improvement of the requirements of the heating industry for environmental protection, energy conservation, safety, etc., the gas wall hung stove is gradually developing to the condensing technology. At this time, the air source heat pump with environmental protection and energy conservation has emerged as a new force. It is not only highly recommended in the “coal to electricity” project, but also vigorously promoted in the southern market by virtue of its dual use of central air conditioning and floor heating, becoming one of the hottest heating equipment in the market at present.
The energy saving of air to water heat pump has a great relationship with the ambient temperature. In order to adapt to different temperature environments around the country and maintain a high energy saving and stability, heat pump units have developed normal temperature air energy heat pumps, low temperature air energy heat pumps and ultra-low temperature air energy heat pumps, which can adapt to the environment of 0 ℃ – 10 ℃ in winter in the south and – 30 ℃ in winter in the north. However, in the face of the low temperature in winter, the air source heat pump still has to face the problems caused by the defrosting and freezing of the air energy heat pump. So how should the air source heat pump do well in winter?
1. Do not cut off water and power if not used for a short time
Whether it is a commercial hot water unit or a household heating unit, do not cut off the power supply at will when it is not used for a short time in winter or when it is not used for a short time. The air source heat pump unit is equipped with antifreeze protection function. Only when the heat pump unit operates normally and the circulating pump operates normally, can the self-protection mechanism of the heat pump unit start normally in cold weather, and ensure that the circulating pipe does not freeze, so that the heat pump unit can operate normally.
2. If it is not used for a long time, please drain the water of the system
In winter, when the ambient temperature is relatively low, the water in the pipeline is easy to freeze, thus causing the heat pump unit and the ground heating pipeline to be frozen and cracked. Therefore, the air source heat pump equipment that has not been used for a long time in winter or has not been put into use after installation needs to drain the water in the system to avoid freezing damage to the air source heat pump equipment, pumps, pipes, etc. When it needs to be used, new water will be injected into the system.
3. Check whether the equipment operation and insulation are normal
The heat pump system needs regular maintenance, and it is also necessary to timely check whether the equipment operation and insulation are normal during use. Specific items: check whether the system water pressure is sufficient. It is recommended that the pressure of the system pressure gauge be between 0.5-2Mpa. If the pressure is too low, it may lead to poor heating effect or unit flow failure; Check whether there is water leakage in pipelines, valves and joints, and timely deal with any leakage; Check whether outdoor pipelines, valves, water pumps and other insulation parts are well insulated; Check whether the temperature difference between the inlet and outlet of the unit is too large, and timely check the system pressure or clean the filter when the temperature difference is too large; Check whether there are sundries in the finned evaporator of the unit (such as catkins, oil smoke, floating dust, etc.), and clean them in time if there are sundries; Check whether the drainage at the bottom of the unit is smooth. The above situations need to be handled in a timely manner. If not handled properly, it may cause poor heating effect and large power consumption of the unit, and in serious cases, it may cause equipment damage.
4. Maintain the working environment of the air source heat pump unit
The split heat pump needs to absorb heat from the low-temperature air. The more heat it absorbs from the air, the more energy it will save. The amount of heat absorbed is related to the surrounding environment of the heat pump unit. Therefore, it is necessary to ensure that the surrounding air of the heat pump unit is smooth. Clean the weeds around the air source heat pump regularly, and do not pile sundries around the heat pump unit. If the snow is too thick, remove the snow around in time, and ensure that the bottom drainage is smooth, so as not to cause the drainage pipe to freeze and block the drainage channel of the heat pump unit. If the heat pump unit is affected by the surrounding environment, such as impurities in the evaporator fins, it is necessary to maintain the heat pump unit regularly and clean up the stains on the heat pump unit. After maintenance, the heat pump unit can not only save energy, but also reduce the failure rate.
summary
As a new type of environment-friendly and energy-saving heating equipment, the air source heat pump immediately shines brightly after entering the heating market, and is favored by users. There are both advantages and disadvantages. Although the air source heat pump brings many benefits, it will also be affected by the low temperature environment. Therefore, we need to take antifreeze measures for the air source heat pump to ensure its energy conservation, stability and long life.
Post time: Dec-08-2022