Jul. 28, 2025
ntages of DC inverter heat pumps compared with AC ones
guangteng Product Page
In recent years, more and more consumers have begun to pay attention to energy-saving products. With the characteristics of safety, environmental protection, and energy saving, the air source Heat Pump with the title of nature has gradually entered people’s life. With the advancement of science and technology, the air source heat pump has changed from the original AC to the current DC heat pump. So what are the advantages of dc inverter heat pumps compared with AC ones?
Firstly, the dc inverter heat pumps are more energy saving and electricity saving. Since the operating speed of the AC heat pump compressor is fixed, if the temperature is too high or too low, the compressor can only be turned off and on again by human operation, and when there is a power failure such as an unstable voltage, the compressor will stop rotating. The frequent shutdowns and restarts will consume a lot of electricity and will greatly reduce the life of the compressor. While the DC inverter heat pump can adjust the operating speed of the compressor at any time, and the compressor will not be turned on frequently, which is much less power consumption.
Thirdly, DC inverter heat pump has more better temperature adjustment speed and more comfortable. AC heat pump can only work at a fixed frequency, when start the temperature adjustment speed is relatively slow; while the DC inverter heat pump after start, it works at a relatively high frequency, and will quickly rise to the setting temperature, then decrease operating frequency to maintain indoor temperature.Secondly, DC inverter can shoulder not much stable voltage. Normally AC heat pumps can only operate under specified voltage, that is, the national household grid voltage (220V/1N/50HZ) or commercial voltage (380V/3N/50HZ). DC inverter heat pump can be operated under a wide voltage range of 130V~280V, with lower voltage requirements and wide applicability.
Fourth, DC inverter heat pump can better adapt to the low temperature environment. Compared with the AC heat pump, the DC inverter heat pump has one more frequency converter. It can automatically adjust the compressor operating frequency according to the ambient temperature. When the unit needs defrosting, the frequency conversion will use high frequency operation, the defrosting time is greatly reduced, thereby improved the heating efficiency.
Altogether, above are the advantages of DC inverter heat pumps. They are very popular models of our company, here are parameters of our factory produced inverter heat pumps.
Heat pumps give out more energy than they consume while running. This is one of the features that makes them efficient and even cost-friendly. Today, heat pumps are changing—all credit to inverter technology.
The inverter has proven itself as one of the succinct ways of saving energy. It abates the wasted operational air by controlling the motor speed. It functions as a car accelerator. Thus, you need not stop and start the heat pumps motor. Instead, you can set the temperatures just as you would with a car accelerator.
If we juxtapose the old-fashioned air conditioners with the inverter model, the difference will be large. Inverter technology reduces power loss, thus saving more energy.
Central ACs and furnaces have been serving homes for decades. Despite that, they fall short of efficiency and versatility if compared to heat pumps. Heat pumps still had much to improve on since their advent. But, as of now, it's a closed subject. The changeable inverter technology speed compressors are making them better.
While using a normal heat pump, the AC switches on and off over certain periods. For instance, it turns on for a while when your house is cold. Once it's sufficiently hot, it switches off only to turn back on when the air gradually matches the one outdoors.
It’s therefore not efficient. It's like riding a motorcycle that only shifts from 100 % acceleration to 0 %. There is no fall to any percentage between 100 and zero. For a bike, you will press the gas to accelerate it when it's falling.
So that's the case with inverter technology. It allows you to fully operate a heat pump to any range of your preference. Also, the inverter take analyzes the temperature and conditions within your home. As such, it’s able to adjust its output, thus maximizing efficiency and comfort.
So, by assuming control of the compressor motor speed, it easily regulates temperatures.
The DC inverter contains changeable frequency drives. The drives comprise adjustable electrical inverter which controls the electromotor speed. In the long run, the drives do control the cooling and heat output.
They also control the input AC to DC. Then the electrical converter produces current but through the desired modulation. On the other hand, a micro-controller samples air temperatures and adjusts in line with the compressor speed. Inverter heat pumps are thus long-lasting, easily adaptable, and efficient than traditional ones. Despite being expensive, one should expect a give back in less than two years hinging on usage.
You can read this article to get more details about the working principles of inverter heat pumps.
Suppose that we compare non-inverter heat pumps to one with an inverter; efficiency will be in question. The former lacks control over energy output. Additionally, they put extra strain on the unit than needed. Oops!
It is even far worse when it turns itself on and off. Remember, the energy to jumpstart a dead AC system is much compared to running progressively. To put it succinctly, the fewer times you run it needs to start, the less energy it takes. The inverter technology runs the system efficiently with variable speed. When it comes to energy consumption, that’s what makes them preferable!
When you buy a heat pump, its description has lots of claims. However, there is always a disclaimer. A warning for this case. The machine won't perform properly in extreme colds. In most cases, difficulties start when temperatures are below 40 degrees.
Stumbling on the disclaimer, homeowners may cancel purchasing them. And, far worse, even opt for huge expenditure furnaces.
Thanks to the inverted technology that has changed. It features a hyper-heat function. As such, it will create heat even when in negative temperatures. Expect it to work even when it is -13 degrees Celsius outdoors.
Non-inverter heat pumps have fixed output units. They shift between on and off and run at maximum capacity. In turn, its operation creates strains on the electrical supply network. Each startup cycle has a surge signature. The surges also affect the mechanical parts of the heat pump.
On the other hand, inverter heat pumps feature a brushless DC compressor. The compressor has not actual start spike when in the start cycle. So, the heat pump starts with the zero-amp current. It then progressively builds up to meet the capacity required by the building. In turn, the heat pump and the electrical supply get stressed a little. Hence, minimal surges as well as wear and tear.
Another changing aspect of heat pumps is that you can now save money and space with inverter technology. You need not fit it in in a buffer tank. Further, the area it takes can be much smaller if the underfloor heating full region is utilized.
Normally, if you install a heat pump on a property, you need space to install a buffer tank. The buffer tank carries water that's preheated. Its then cycled around the central heating system, thus limiting on and off switches.
Take an incident where you have an extra room that's rarely used and has low temperatures than the rest of the house. However, you decide to use it and even heat it. You, therefore, have to adjust the temperature of your heating system to meet the new room's demand.
Remember, a non-inverter heat pump operates at its highest capacity. And will work at that same level even if it has to meet a fraction of the maximum heat needed. That's a waste of electrical energy. To get around this, a buffer tank releases its preheated water. Its then transferred to the radiators underneath the floor of the designated room. It warms it up and uses the maximum output of the heat pump to heat water in the buffer tank. But it will overheat the tank.
However, for an inverter-driven unit, the heat pumps easily adjust to the lower output. It then gets the difference in demand and adjusts its output in line with the low water temperature change. This feature allows homeowners to save money and space for larger buffer tank installation.
Retrospectively, the advent of inverter technology has changed the conditions at homes during cold months. As of now, heat pumps inbuilt with this technology can use less energy, last for long, and adapt to any temperature range. And for homeowners, the tech offers a chance to save money and reduce electricity interruptions.
It equips heat pumps with high efficiency and versatility. And that's the reason behind the heat pump revolution today!
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Product Description
The EVI dc inverter heat pump can automatically adjust the compressor speed according to changes in the ambient temperature, while keeping the temperature more stable. Even if the set temperature is reached, the unit will not shut down and maintain low energy consumption operation. An EVI (Enhanced Vapor Injection) DC inverter heat pump is a cutting-edge heating and cooling system designed for high efficiency and superior performance in extreme climates. The EVI technology allows the heat pump to operate effectively even in very low temperatures, making it ideal for colder regions.
Our EVI Inverter is a solution which uses DC inverter technology to heat, cool and to produce domestic hot water. It does not only satisfy house heating requirements, but also supplies domestic hot water. Besides, it can provide you a cooler environment in a hot summer. You will enjoy a comfortable life at your home all year round with one device. It can operate in minimum outdoor air temperature of -25℃. Leaving water temperature up to 60C for radiator and domestic hot water applications, making hot water readily available.
The EVI technology improves the system's efficiency and capacity at low ambient temperatures, ensuring reliable heating even when temperatures drop significantly below freezing.The combination of EVI and DC inverter technology allows for precise control of the compressor speed, optimizing energy use and reducing operational costs.EVI DC inverter heat pumps can provide consistent heating and cooling across a wide range of outdoor temperatures, making them versatile and suitable for various climates.
The advanced technology used in EVI DC inverter heat pumps reduces wear and tear on the compressor, leading to a longer lifespan and reduced maintenance costs.An evi heat pump utilizes Enhanced Vapor Injection technology to boost heating efficiency, particularly in colder climates. This technology injects vapor into the compression process, which enhances the heating capacity and efficiency of the heat pump.
The EVI technology allows the heat pump to deliver higher heating outputs even at low ambient temperatures, ensuring warmth and comfort in harsh winter conditions.By improving the efficiency of the heating cycle, EVI heat pumps consume less energy, resulting in lower utility bills and reduced environmental impact.EVI heat pumps are designed to operate reliably in extreme weather conditions, providing consistent and dependable heating performance.
Combining the best of EVI and DC inverter technologies, the EVI DC inverter heat pump represents the pinnacle of efficiency, performance, and reliability in heating and cooling solutions. These systems are designed to deliver superior comfort, Energy savings, and environmental benefits, making them ideal for both residential and commercial applications. Whether facing extreme cold or seeking to reduce energy costs, EVI DC inverter heat pumps provide a versatile and dependable solution.
If you want to know more information about EVI DC inverter heat pump, please contact us. Guangteng will provide professional answers.
Using EVI technology rotary compressor. Work stably in cold weather where the lowest temperature reaches -25°C.
Split design, to better avoid lag problems. Automatic antifreeze protection by detecting the water temperature of the system.
In order to save energy, when the temperature reaches the set value, it will automatically switch to low frequency operation mode.
Thanks to the DC inverter brushless fan, our split EVI DC inverter heat pump operates with sound insulation measures to ensure that you have an ultra-low noise device.
If you are looking for more details, kindly visit Cooled Water Chiller Air.
When the unit needs to be defrosted, high-frequency operation is adopted, which greatly shortens the defrosting time.
Detail:
● DC inverter technology
● R410A refrigerant
● SWEP plate heat exchanger
● ERP A++
● For heating, cooling and DHW
● Smart WiFi control
● Pre-set selection of the appropriate climate curve
● Low running noise
If you want to buy EVI DC inverter heat pump, please contact us and we will provide you with the most suitable price.
DC inverter technology creates a comfortable and energy-saving experience to heat and cool your home. This system controls compressor motor speed and regulates temperature at the same time to avoid any rapid fluctuations in temperature and energy usage. Compared to previous generation technology, this system has many innovative features that provide more energy efficiency and save you more money each month on your energy bills.
The benefits including:
1. increased efficiency
2. rapid heating and cooling
3. quiet operation
4. reduced operating cost
5. reduced energy waste
EVI stands for "Enhanced Vapor Injection" and is a technology used on our cold climate heat pumps to achieve higher performance at lower temperatures. An EVI air to water heat pump uses a 3rd smaller internal plate heat exchanger called an "Economizer" within the refrigeration cycle. Using EVI air souce heat pump technology, we are able to overcome the limitation of maximum flow temperature that other cold climate heat exchangers encounter. EVI Heat Pump technology allows more heat to be delivered resulting in a better COP at much lower temperatures. The EVI technology increase performance efficiency by 27-30%.
The EVI DC inverter heat pumps are tested by TUV, achieving the ERP A++ energy class, the highest energy efficiency.
With smart WiFi APP control, you can check or control your heat pump anytime, anywhere easily.
There's pre-set selection of the appropriate climate curve for stable output capacity to match the heat load. The climate curve is the relationship between the heating system supply temperature and the outdoor air temperature. In the case of a climate curve, it is done automatically thanks to the weather-based control, which adjusts the supply temperature based on the outdoor temperature.
evi dc inverter heat pump, used for hot water and air conditioning, can automatically adjust the speed of the compressor according to changes in ambient temperature, so as to ensure that the indoor temperature is more stable. Even if the inverter reaches the set temperature, it will not stop running, but will keep running at low energy consumption. Therefore, in terms of service life and energy consumption, the evi dc inverter heat pump system is superior to ordinary air-water heat pumps, although its cost is higher.
The lower the ambient temperature, the higher the heating capacity of the evi dc inverter heat pump.
At minus 15°C, the heating capacity of evi dc inverter heat pump is about 60% higher than that of ordinary heat pumps. At minus 25°C, the gap expands to 80%. The variable frequency air source heat pump can change the fixed frequency of 50Hz to the operating frequency of 120Hz through the variable frequency controller. The compressor can be adjusted at any time according to the environment and the power supply frequency of the fan, and the speed of the compressor and the fan can be adjusted to achieve stepless speed regulation and make full use of energy.
The evi dc inverter heat pump can reduce the current when the system is started, and will not cause an impact on the power grid and the electric energy meter.
Can reduce the interference to other electrical appliances in the room. The voltage adaptation range is 340V-420V, which solves the problem of unstable work caused by unstable voltage. The wider the frequency range, the more reliable the operation can be guaranteed under continuous working conditions, and the more obvious the energy-saving advantage. The cooling (or heating) speed is fast, and the low temperature heating effect is good.
The inverter heat pump can achieve high power and high efficiency.
When the system is started, or when the ambient temperature is different from the set temperature, it can run at the highest frequency, up to 120 Hz. Start heating quickly, the temperature quickly rises or falls to the set temperature, and the temperature environment can be quickly obtained. When the temperature reaches the set value, it will automatically switch to low frequency operation, and the heating (cooling) effect is obvious.
In addition, in winter, due to the low ambient temperature, the inverter heat pump will frequently form frost, and the heat capacity of the air will be greatly reduced. The frequency conversion air source heat pump can defrost at high frequency, which greatly reduces the defrosting time and greatly improves the heat production.
Inverter air has good adaptability to ambient temperature and good low temperature performance. Through the stepless frequency conversion technology, there is no "attenuation" in the low temperature environment of -15 degrees, and the thermal performance is significantly better than the constant frequency low temperature air energy. High-efficiency, energy-saving, low-noise, and long-life air source heat pumps. The operating frequency of compressors and fans can be determined according to how much heat (cold capacity) is needed, so as to make rational use of energy. And since the compressor is not frequently turned on, the working state of the compressor is kept stable, so it does not consume too much electric energy. The energy efficiency of COP can reach more than 30% of the total energy consumption of fixed-frequency air, and it also plays a significant role in reducing noise and prolonging the service life of air energy.
The biggest advantage of evi dc inverter heat pump is energy saving. Heat pump heating is only 0.28 degrees per square meter per day, and air-conditioning heating only costs 0.14 yuan per day. Less square meters can save electricity by nearly 60% per day. Compared with gas wall-hung boilers, a 100-square-meter house requires 15 cubic meters of gas to ensure that the normal indoor temperature is above 20 degrees Fahrenheit a day. Calculated at 2 yuan per cubic meter, the daily cost is about 30 yuan, and the air source heat pump heating cost is less than 20 yuan, which is also very energy-saving. Compared with the heating cost of 6.5 yuan per square meter, air energy heat pump heating can save more than 90% of energy, and the advantages are more obvious.
When you run an ordinary air conditioner, the air conditioner will cycle between on and off states. It will open for a period of time, and when the house is sufficiently cooled down, it will close. As the air gradually recovers to match the outdoor temperature, the AC power is turned on again.
This is how air conditioners and heaters (including evi dc inverter heat pump) have been operating for years. However, it is actually not that effective. Imagine if you were driving a car that could only switch between 0% acceleration or 100% acceleration, and nothing in between. A 100% acceleration will definitely get you to the end of the block, but this is too much. Instead, you will gradually step your foot on the accelerator and give it only the necessary gas.
This is where the demand for Inverter technology emerges. The variable speed compressor driven by the frequency converter allows your heat pump to operate in the full range of 0 to 100%. It does this by analyzing the temperature and conditions in the home and then adjusting its output to maximize efficiency and comfort.
For fixed output units, the cycle between opening and closing and operating at maximum capacity not only stresses the evi dc inverter heat pump device, but also stresses the power supply network. Create a surge in each startup cycle. This can be reduced by using soft starts, but these soft starts are prone to failure after only a few years of operation.
As the fixed output heat pump circulates, the heat pump will absorb the current surge to start it. This puts the mechanical parts of the power supply and heat pump under pressure and cycled on/off multiple times a day to meet the heat loss requirements of the property.
On the other hand, the inverter unit uses a brushless DC compressor, and there is no real start-up spike during the start-up cycle. The heat pump starts with zero ampere starting current and continues construction until it reaches the capacity required to meet the needs of the building. This makes the evi dc inverter heat pump device and the power supply bear less pressure, and at the same time it is easier and more stable to control than the on/off device. Normally, when multiple start/stop units are connected to the grid, this may cause problems, and the grid provider may refuse to connect without a network upgrade.
The efficiency of evi dc inverter heat pump is much lower because they cannot control the energy output, but this is not the only cause of their inefficiency. They also put unnecessary pressure on the system.
A well-designed heat pump system will provide a coefficient of performance (CoP) between 3 and 5 (depending on whether it is ASHP or GSHP). For every 1 kilowatt of electrical energy used to power the heat pump, it will return 3-5 kilowatts of heat energy. The natural gas boiler will provide an average efficiency of approximately 90-95%. Compared with burning fossil fuels for heating, heat pumps will provide approximately 300% or more efficiency.
Take short-distance riding as an example. This is a problem when the air conditioner or furnace is turned on and off too frequently. Starting AC power from a complete stop state requires more energy than continuous operation of the system, and may even increase the additional wear of the system.
In other words, the fewer times your heat pump needs to be started, the better it is. Inverter's variable speed can help the system run more uniformly and efficiently, thereby reducing the number of cycles
Our evi dc inverter heat pump have high quality and cheap price. If you have any question on product, we will give the professional answers to your short questions.
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