Heat pump: reviews of real owners, benefits of use

Heat pumps are equipment that is intended for heating premises. They are also capable of cooling various objects. The main element of the above device is a compressor. To date, various modifications are available. At the same time, the parameters of the heat pump are undoubtedly changing.

What important characteristics can be noted

The main parameters of pumps are heat power in the first place. This indicator is measured, as a rule, in kW. Next, account should be taken of electricity consumption and conversion factor. The control unit of the device has its own voltage, as well as the starting current.

Additionally, the volume flow in the heating circuit, which affects the residual head, is taken into account. The feed temperature can be different. The noise level of the device is measured in dB and depends on the power of the unit. The dimensions of the hydraulic connections are also taken into account and will help with the installation. The outdoor unit of the heat pump has its own voltage. In some cases, two samples can be installed at once.

Opinion about pumps with reciprocating compressors

As a rule, piston heat pump reviews of owners receive a positive because of the rather high power. It is more expedient to install them in large residential buildings, or simply for heating. The efficiency of their average is about 95%. From the shortcomings immediately it should be noted the high pressure with which the compressor is quite difficult to cope with.

Feed from the network is carried out independently. You can start the work without preliminary pumping, and this is an advantage. In general, many models are very cumbersome. In this regard, their installation is quite problematic. As a drive, high-speed motors can not be used. In many respects this is due to the peculiarities of the crank mechanism.

If we consider the models of the company "Vailant", then the power of the unit is on average 5.7 kW. Electricity consumption is in the region of 1.5 kW. The conversion factor for the VWL series pumps is 5.2 kW. The total voltage of the control units is at 230 Hz. In general, the starting current without the limiter is quite high. As a result, the volume flow in the heating circuit can reach up to 1100 liters per hour.

Advantages of using rotary models

Reviews of heat pumps (rotary) most often refer to the dimensions of the device. Many customers like this type because of their compact size. In addition, it should be noted that the mass is also quite low. The connecting rod in this modification is missing. As a result, manufacturers were able to significantly reduce the number of moving elements. All this, ultimately, affected the performance of the unit. A pump of this type is able to serve the consumer for about 10 years.

In service, they are uncomfortable, and this is a definite plus. There are no different valves in the system, and the gas supply is uniform. Disadvantages of this type of pumps, unfortunately, have. First of all, you can note the high cost of goods in comparison with other types of devices. There are also certain problems with the heating element. In general, most models are produced with low power. Thus, they are most suitable for houses with a total quadrature of no more than 100 square meters. M.

Screw pump prototypes

Are there any owners of heat pumps? Discussion on this subject can be continued indefinitely, but with certainty it can be said that screw types are primarily famous for the simplicity of their design. The weight they have in most cases, as well as the dimensions, is rather modest. In operation, they are not fastidious and do not require special attention.

In general, the wear of the elements is small due to the absence of friction in the parts. They are able to be used in a variety of areas. In addition, they are installed as low-temperature refrigeration units. The pressure limit of screw pumps is very large. In this case, compression of two-phase means is possible. Their electricity consumption is 2 kW. The thermal power of the unit primarily depends on the parameter of the starting current. Control units, as a rule, are produced with a voltage not exceeding 230 V. The limiting frequency is in the region of 50 Hz. The consumption in the heating circuit can reach a maximum of 1000 liters per hour. The residual head of the screw pump is on average 500 bar. The conversion factor for many models does not exceed 2 COP.

What are the advantages of vane type pumps

Choosing a heat pump, for or against buying, all must be considered. This type differs from other devices in a uniform feed. The compressors at the pumps are installed in a plate-like class. The motors can be connected directly to the motors. In this modification, the valves are completely absent. As a result, many models are able to brag of good reversibility. The supply from the back pressure of the network is stable. To create a vacuum, you can use the vane pumps.

Disadvantages of these devices, unfortunately, also have. First of all, consumers note the high sensitivity of the units. This parameter depends on the environment in which the device is used. If there are various mechanical impurities in it, the rotor operation may be disturbed. Wear of the edges of the plates occurs quite quickly, and this should be taken into account. In general, the efficiency of slide valves is very low and does not exceed 50%. The reason for this can be called the slow flow of liquid. This process occurs through special closures. The liquid also passes through the edges of the plates.

New axial-piston modifications

These heat pumps user reviews are not very good, but the power of the devices is stated large. Designs in general are very complex and in service pumps of this type are problematic. Directly the rotor of the unit is connected to the cylinders. Also, the axial-piston heat pumps user reviews are negative due to the high frictional force.

In this case, all the cardans in the body are attached to the washers. In some cases, they can not last long. As a result, the motor of the device may suffer. The thrust of the axial-piston compressors depends on the type of hinges installed. Some manufacturers in this regard are not pleased.

Reviews of radial piston pumps

Radial-piston type heat pump positive impressions from the owners is often caused. The rated power of these devices can reach up to 2 kW. The energy efficiency of the models leaves much to be desired. The noise level of many modifications reaches 50 dB. Dimensions of pumps of this type are very different. First of all, this is due to the mass of the compressor. The dehumidification index for them averages 0.8 liters per hour. The temperature range of the unit depends on the manufacturer. Models with a small volume of gas charge represent a big problem. Mainly it is connected with narrow highways. Usually their diameter does not exceed 15 mm.

The distance between the bolts should also be paid attention, but the normal figure is 470 mm. In this case, we can hope for a high strength of the structure. For domestic use, this modification can be applied, but in industry it is useless. The resource of work is great, but the maximum temperature is quite low. Separately it is worth noting the products of the trade mark "Nordis". It uses a completely unique technology, "Daikin". In many models, special active filters are used. As a result, the device can significantly reduce the frequency limit to 165 Hz.

Devices with dynamic compressors

Feedback on heat pumps with dynamic compressors can often be heard positive. Many consumers of this type are attracted by their multifunctional blocks. The refrigerant circuit is located in the inside of the device. The maximum flow temperature can reach up to 60 degrees. Humidity of air is allowed different. In general, the devices are easy to use and clean quite comfortable.

Also, reviews about heat pumps with dynamic compressors are affected by the heating regulators. As a rule, they are installed in the built-in type. For hot water, they are ideal. Connecting to the pipeline can take place in several ways, and this is good. Dynamic pumps are operated quietly and comfort from their operation is quite high. With the heaters, these devices can be combined, however, much depends on the manufacturer. The conversion factor, thanks to the compressors, is at an altitude. Installation of equipment is very fast. To date, many compact models can be found on the market. Of the shortcomings can be noted only a complex diagnosis.

What are the advantages of vane pumps?

The bladed heat pump reviews of real owners is not too good, because it is highly dependent on weather conditions. In a humid environment, it quickly breaks down, and this is a major drawback. Fans in many models are installed modulator built-in type. Valves, this modification provides three-way. Also the impeller heat pump reviews of real owners get negative for low power, which reaches only 4 kW. An emergency defrost system is available in the models.

If we consider aggregates of the trade mark "Term", then, as a rule, they use the new technology "Pro E". The temperature sensors for outdoor air have been set fairly high. The expansion vessel in many models has a safety valve. For the supply line, there is a special buffer capacity in the device case . As a result, connection to the water heater can be carried out without hindrance.

Centrifugal modifications: reviews and benefits

In order to adjust the heating of the house, the heat pump of the centrifugal type fits poorly. It will be more rational to use it in the industrial sphere, and there are certain reasons for this. First of all it is necessary to note rather complex maintenance of the unit. Its design is very large and it has many elements that need lubrication.

Evaluations about centrifugal type heat pumps indicate that their compressors need periodic cleaning from dust. Much in this case depends on the environment in which the unit is used. It is very difficult to disassemble the equipment completely for diagnostics. According to the characteristics of this type of pump differs little from other samples. The average electricity consumption is 2.1 kW.

Reviews about models with axial compressors

Axial heat pump reviews of real owners is good and recently is quite in demand. The design is very simple, and to pick up models with compact dimensions is not a problem. Their conversion coefficient reaches a maximum of 2 POPs. At the same time, performance is pretty good, and wear of parts is acceptable. As a result, a good guarantee can be obtained from the manufacturer.

Also, the axial heat pump reviews real owners receive a positive for a high starting current, which reaches a maximum of 16 A. The residual head in turn usually is 1000 liters per hour. Most models come with two indoor units. As a result, the noise level of axial pumps is quite high. The dimensions are also very large, and the weighing device can be over 150 kg. In this case, it significantly complicates the installation of equipment on site.

Should I choose pumps with turbochargers

This type is designed for extremely low temperatures. Most often, models can be found in northern countries. The life of the pumps is high. The company "Daikin" in this regard is very successful. The compressors are heated by the devices. Also, the owners mark the solid pallets. For the best operation of the unit, a cold plasma system is installed. It is a set of active filters that can clean the air of any contamination.

The refrigerant in many Daikin models is used in the 410A series. As experts say, it is absolutely harmless to human health. The "Control" mode is able to please the owner with stable operation at a low frequency. As a result, a significant reduction in electricity consumption can be achieved. By volume, pumps of this type do not stand out from the above instruments. At a distance of 10 meters, they average 55 dB.

The voltage of the indoor unit can reach a maximum of 230 V. The average thermal power of the unit of this type is 3 kW. Thus, the conversion coefficient of the model can reach up to 3 COP. In the end, we can say that the above modification for warming the house is good and surely many will like it.