Every year winter becomes warmer and less predictable. The absolute record was recorded in the 2017-2018 season. Meteorological specialists from the Federal State Budgetary Institution "Institute of Global Climate and Ecology" recorded anomalously warm values temperatures for winter and spring for a number of regions of Russia. “Well, at least we’ll save on gas,” some will say. Others will object. - Forecasting the weather is a thankless task, but for real savings other measures are needed. - And they will be right.
Strictly speaking, modern technologies have long been able to effectively insulate any home. In addition to comfort, this also means significant savings in heat and energy resources. But in addition to the external and internal thermal insulation of your home, you should not forget about the heating system. Even if it is designed correctly and does not cause any complaints, it can always be made more economical.
A caveat should be made here. There are houses different types and sizes, and they can be heated in different ways. In small buildings, a system with natural circulation coolant. Pure physics and nothing more. Heated in gas boiler The water rises to the top, and when it has been used and cooled down, it falls under the influence of gravity. But such a system is unlikely to be effective for medium and large buildings. The circulation of water in the system occurs slowly, which means that there may be problems with heating the radiators, or even completely, there is a risk of pipes freezing in unheated places.
An alternative to natural, in this case, is forced circulation of water. In this case, pumps are used that are installed in heating systems. Namely, in return pipe(the so-called “return”) which goes from the radiators to your boiler. Forced circulation ensures constant and uniform heat transfer in all areas of the house.
In order not to make a mistake when choosing a pump for your heating system, you need to know many parameters. But the main ones are two: how much thermal energy does the house need, and what are the indicators hydraulic resistance? For ordinary person it's all complicated. And in order not to make a mistake, it is better to trust the professionals who will select optimal model equipment.
In Russia it's quite big choice pumps, both with “wet” and “dry” rotors. However, not all of them are applicable in engineering systems private houses. Pumps with a dry rotor have high efficiency (up to 80%), but are very noisy. As for units with a “wet” rotor, they are the opposite: they are very compact, can be mounted in any heating systems, are practically silent, and therefore are so loved by the owners of private houses. Pumps are called “wet” because the rotor is in water and cooled there. The liquid acts as a lubricant for the mechanism. The device is mounted in horizontal position shaft so that there is always water in the housing.
Grundfos pumps
Being the undisputed technological leader in the market pumping equipment GRUNDFOS (Russia) is pleased to offer its customers a large selection of models. The range includes both adjustable and unregulated pumps. This is, for example, a compact UPS with a “wet” rotor and asynchronous motor, which has three speed control modes. Switching occurs manually using a special lever on the body. If the rotor becomes sour due to prolonged inactivity, the pump shaft can be rotated manually.
Concerning adjustable pumps, here GRUNDFOS offers a whole family of devices from the ALPHA series. Each of them at correct operation will last long years and won't deliver unnecessary hassle. These models, according to the degree of increase in functionality, can be arranged as follows: , and ALPHA3.
This series of pumps has wider capabilities than UPS. They implement the ability to automatically adjust the shaft rotation speed, which allows them to be used as part of heating systems with high degree automation. Like all GRUNDFOS circulation pumps, the ALPHA1 L is characterized by very high energy efficiency, with an EEI coefficient of less than 0.23. This means very high efficiency. "L" in the index means limited functionality. Take a look at the list of pump capabilities - it is more than impressive, there are 6 modes in total. But GRUNDFOS calls this “limited functionality” for a reason, because the range includes models with even more diverse capabilities.
ALPHA2 AND ALPHA3
Now these pumps are completely identical in functionality. This happened after it became possible to independently carry out hydraulic balancing of the heating system, which was previously only available in ALPHA3. This is a very convenient solution that has earned the informal nickname “Cure for the Cold.”
For hydraulic balancing you will need an ALPHA Reader, which is installed on the electronic unit. It must be purchased separately and is not included in the package. APLHA Reader transmits information from the pump to a smartphone or iPad. You will also need the free GRUNDFOS Go Balance application, which must be installed on your gadget. The further procedure is carried out under the guidance of the application, which will provide detailed instructions for each stage of hydraulic balancing of the entire system. Pumps ALPHA2 and ALPHA3 allow you to measure the coolant flow in any heating system (warm floor, two or single pipe systems, dead-end, radiator network without thermal heads or with constant flow) on all radiators and underfloor heating circuits in real time. This allows you to reduce to zero possible errors, which cannot be avoided even with the most careful theoretical calculations.
However, ALPHA2 and ALPHA3 are interesting not only because of their ability to self-balance. These are modern multifunctional units that perform excellent work in different conditions. They have three fixed speed modes, three constant pressure drop modes and three proportional control modes - such a wide choice opens up the possibility of fine-tuning the system, the pump becomes universal. There are two more important additional functions: “night saving mode” and “summer mode”. In Denmark, where these pumps were developed, they are used in great demand. Firstly, heating rooms that are unoccupied at night is simply irrational. Secondly, there is a question of compatibility. The pumps are suitable for use with modern boilers, where a similar regime is present. Pragmatic Danes know a lot about saving; heating is generally an expensive pleasure for them. Therefore, burning gas, wood or coal in vain is an unaffordable luxury.
As for the “summer mode”, this is a seasonal function. It allows you to start heating in the fall without unnecessary problems. For example, souring of the pump shaft during a long period of inactivity. In fact, starting the system yourself several times during the summer is a real hassle. “Summer mode” will maintain the system’s functionality independently.
GRUNDFOS ALPHA2 was the first pump to feature the AUTOADAPT mode - naturally, ALPHA3 also “inherited” it. This is a new product from the company’s engineers, who pay great attention, first of all, to ease of use, and of course, energy efficiency. The function became a real breakthrough and a kind of standard for subsequent generations circulation pumps. The AUTOADAPT mode makes it possible to automatically change equipment settings when the needs of people living in the house change, or, for example. Changes of seasons. Using complex software algorithms, the electronics of the equipment constantly analyzes the processes and, depending on the indicators, selects the optimal pressure. This significantly saves heating system resources and consumer money.
By purchasing GRUNDFOS pumps, the consumer receives a very quality device, made to the highest European standards quality. That is why the manufacturer gives a guarantee of 2 to 5 years for various models equipment.
Separately, it is worth mentioning the engines. Do you know many manufacturers of pumps in which the rotor shaft and bearing are made of ceramics? Most likely not, since in most models from GRUNDFOS competitors the shaft is made of steel and the bearing is made of graphite. It is common knowledge that hot water heats the iron and expands it. Over time, such a bearing wears out and scale and other debris get into the gap formed between the shaft and the bearing. Sooner or later this leads to breakdown. In the case of ceramics this is almost impossible.
In addition, the ALPHA series pumps use a four-pole synchronous electric motor With permanent magnets And frequency converter. Permanent magnet rotors provide greater efficiency over a wide range of loads. The GRUNDFOS company values its customers and is ready to provide any assistance at any time. The “Service in 24 hours” program is presented in all cities of Russia where the company has representative offices. The user of GRUNDFOS pumping equipment can always call " hotline» and get an answer to any question you may have or call specialists to resolve
The Grundfos UPS industrial pump (series 200) is a flanged circulation product of German engineering, having three speed stages and operating as a wet rotor. These are reliable, durable and most importantly silent pumps designed to work in systems with forced circulation working fluid or air - heating, air conditioning and hot water supply. Our catalog presents the widest selection of the entire line of modifications (UPS 32-30F - UPS 40-185F).
Pumps Grundfos series ALPHA 2 is the latest and most innovative product from Grundfos. ALPHA 2 is a series of energy-efficient circulation pumps designed for installation in heating and water supply systems with adjustable or variable flow. ALPHA 2 used for circulation of water and glycol-containing liquids in single-pipe, double-pipe, systems heated floors And DHW systems. The ALPHA 2 pump is equipped with a function AUTO ADAPT, which automatically adjusts the pump using factory settings to ensure automatic regulation pump characteristics in accordance with the actual needs of the system. You do not need to configure the pump, the function will do it for you AUTO ADAPT. The pump is turned on with one button.
Circulation pumps for Grundfos heating systems are a good choice for those people who value reliability and practicality in all areas of life. When organizing heating systems, underfloor heating and hot water supply, the task of constant water circulation arises. Typically, pumping equipment (circulation pumps) is used for such purposes.
Grundfos is a popular Danish company that manufactures pumps. The most noticeable difference from other companies is the fact that Grundfos catalogs have series that have been developed specifically for use in a specific area. Each pump in this series has detailed description And specifications
Pumps of this type are very compact in size and light in weight. This greatly simplifies installation and makes it less noticeable. All equipment of this type does not create any inconvenience, as it operates almost silently.
Grundfos heating circulation pumps are very economical and, when operating, consume a small amount of electricity. Please note that some types of such equipment do not require special installation . If difficulties arise with self-installation
, you can watch a video lesson on the Internet.
The operating parameters of Grundfos equipment are set automatically, which simplifies the task of setting them up and constantly monitoring them. The main task of any circulation pump is its effect on the coolant (heat supply system).
In this process, the natural resistance in the pipes is suppressed by the pressure difference. To choose the right pump, must be taken into account main factor– coolant temperature, as well as characteristics of the substance to be used.
Advice! Before purchasing, be sure to consult with a specialist, as choosing the wrong model may cause financial losses on your part.
Read here.
Another one important characteristic, which needs to be taken into account is the diameter of the pipeline. Possible hydraulic losses should also be calculated.
The most basic rule that should be followed when choosing a pump is that the volume of coolant in the system must flow at least three times per hour. Before purchasing a circulation pump, you need to carry out calculations, so it is best to select and install it with a specialist.
Types of pumps
As for the variety of this type of pump, there are two most popular ones:
- Grundfos circulation pump for heating with a dry rotor. His photo is just below. Its peculiarity is that the motor practically does not touch the liquid it pumps. Often, such pumps are used in dimensional systems where there is a need for pumping large quantity coolant;
- Glandless rotor pump. In such equipment, the rotor is located directly in the liquid. The main advantage of this design is that the air itself is removed when the pump starts.
Advantages of Grundfos pumps
The Grundfos heating circulation pump has the following advantages:
- Small power, but high performance. The height of the building never reduces the performance of the device, since the water supplied by the pump to the pipeline always pushes the coolant in the opposite direction;
- Minimal energy loss, occur only due to the friction force in the pipeline;
- Significant energy savings. This is explained by the fact that the pump maintains the desired temperature in autonomous mode;
- All modern systems This type is equipped with special temperature regulators. You can set the desired temperature on this sensor and then the system will maintain it itself. The pump can quickly adjust to the desired mode and maintain the already set temperature;
- Circulation pumps for Grundfos heating systems are characterized by a simple design. If desired, you can install such a unit yourself without the involvement of knowledgeable specialists;
- The buyer can select the appropriate pump for a specific system. It should be noted that the price will depend on the configuration of the device. All this allows the buyer to significantly save his own money;
- A huge plus is the practicality and reliability of circulation pumps. There are no unnecessary functions and parameters;
- Possibility of purchasing through the online catalog at official dealer thanks to the photos and videos of the pumps provided.
Features of Grundfos pumps
The Danish company Grundfos is a leader in the design of high-quality pumping equipment. It covers half the needs of the entire world market. This company is trusted by millions of people, as it has successfully established itself in the sales market of circulation pumps and equipment of this type.
Special requirements are always put forward for the equipment of this company due to the fact that such systems must operate continuously and autonomously. Also, a huge advantage of Grundfos pumping units is high-quality warranty service.
Usually guarantee period is given for twenty-four months from the day the purchase was made. Instructions are included with all pumps.
- read about it here.
The most popular models
Let's take a closer look at some types of pumps Grundfos:
- Glandless rotor pump GRUNDFOS ALPHA 2
ALPHA 2 is a completely new approach to existing technologies. It is fully automated and adapts itself to the system parameters. The unit significantly reduces noise occurring in pipes.
Main characteristics:
- Pump Grundfos UPS 32-30 F /220V
The main advantage of this device is its versatility. This model has three operating speeds, which allows you to independently select the rotation speed for any conditions.
The pump in question can be used in different areas use.
It can be used in the following systems:
- autonomous heating;
- air conditioning and refrigeration.
The pump is compact in size, very easy to install independently, easy to repair and warranty service. All additional parts and spare parts are not included in the kit and must be purchased separately in special stores.
Do you want to know which device can provide warmth and comfort in your home? Guarantee that, with low electricity consumption, your batteries will always be not just slightly warm, but hot, that in the underfloor heating system on a winter day there will be exactly the temperature that you set, and literally scalding water will flow from the tap? All this and even more can be obtained if you buy a Grundfos circulation pump.
As a rule, pumps for heating systems manufactured by Grundfos are used in apartments, cottages, country houses and in dachas, that is, wherever there are heating systems, hot water supply, warm “water” floors, or even refrigeration and air conditioning. Most often, they are chosen by buyers for their stable and uninterrupted operation, low noise level even compared to their closest analogues, and minimal power consumption.
But this is not the entire list of advantages that every Grundfos circulation pump has. These booster pumps are easy to install. Their installation takes very little time and can be carried out either by a company specialist or by the homeowner himself. Of course, for the latter you will need to carefully read the instructions and have at least a minimal understanding of the structure and operating principles of such equipment. By the way, immediately after installation you can simply enjoy the warmth and forget about the device itself, since in the additional maintenance during use they are practically not needed. And this is a colossal achievement, especially considering that the price of Grundfos circulation pumps does not exceed the limits of affordability.
Separately, it is worth noting the ceramic bearings that engineers used in Grundfos pumps for heating: they work longer than their metal “brothers” and are not subject to abrasion and corrosion. The same can be said about the case made of stainless heavy-duty steel, brass or bronze. Devices in general “wear out” more slowly and do not break down longer time and practically do not need to replace spare parts.
Thus, the Grundfos heating circulation pump is a reliable, stable, high-quality device that is easy to install and practically does not require maintenance.
The most popular models among buyers: grundfos alpha 2 and grundfos alpha2 l.
Just select from the catalog the device that suits your family and order it on the TeplovodService website. From this day on, your home will be warm and pleasant even in the coldest weather.
Grundfos was founded in Denmark more than 70 years ago. Over the years, it has managed to become one of the world leaders in the production of household pumping equipment. Customer reviews of these pumps indicate, first of all, high quality manufactured products of a Danish company. Pumps from this company are installed in gas boilers such famous manufacturers, like , Protherm, and others.
Today we will take a closer look at circulation pumps for heating brand Grundfos, reviews, technical specifications and the lineup. Let's sort it out internal organization pump for coolant circulation of this brand, we will make a selection and summarize the results by comparing the advantages and disadvantages of Grundfos pumps for heating a private house.
Grundfos UPS series pumps: model range, technical specifications
Models of Grundfos UPS circulation pumps are the most popular among consumers, both in Russian and European market. They are used for open and closed system heating a private home or other residential and small industrial premises.
They can also be used for underfloor heating and for refrigeration and air conditioning systems. They gained their popularity among buyers thanks to their relatively affordable price and, of course, European quality of assembly and materials.
Grundfos UPS 25-40 and 32-60
IN Lately pumps Grundfos UPS are produced in several countries: Denmark, Germany, Serbia or China. At online selection Grundfos pump for heating, on the official website or in the online store, you can find models with different technical characteristics:
Grundfos UPS 25-40;
- Grundfos UPS 25-60;
- Grundfos UPS 25-80;
- Grundfos UPS 32-40;
- Grundfos UPS 32-60;
- Grundfos UPS 32-80.
What do these numbers tell us? And it is deciphered as follows.
The first number in the abbreviation tells us what internal diameter the cast iron union nuts of the pump (American) have when connected to the heating system. IN in this case, they can be 25 mm, 32 mm, and sometimes 40 mm in diameter.
The second number (40, 60, 80, 120) shows to what maximum height this pump model is capable of raising a column of water, which is 4, 6, 8 or more meters, respectively.
How to choose the right Grundfos circulation pump
Diameter union nuts for the pump is selected depending on the diameter of the pipe that is planned to be used for the heating system. If this polypropylene pipe with a diameter of 20, 25 or 32 mm, then a pump with a nut diameter of 25 mm is quite sufficient.
If the system is made of polypropylene pipe larger diameter, or steel from 25 mm and above, then it would be advisable to buy a Grundfos pump with an internal diameter of union nuts of 32 mm and a standard mounting length of 180 mm.
As for the height of water lift by the pump, for a one-story or two-story private house with a total area of up to 100 m2, where there is no underfloor heating system, the Grundfos UPS 25/40 or 32/40 model, the technical characteristics of which meet these requirements, is quite sufficient.
If you have two-storey house small area 100-150 m2, and an additional circuit for a heated floor without a pumping and mixing unit is also planned, it is recommended to buy a UPS 25/60 or UPS 32/60 pump. For a large house with an area of 300 m2 or more or three-story buildings or workshops, it is necessary to install a circulation pump with parameters 25/80 or 32/80 in the heating system.
Grundfos UPS circulation pump design
The body of the Grundfos heating pump can be made of cast iron or stainless steel. It can also be equipped with an air separator. Pumps of the Grundfos UPS series have 3 speeds, manually adjustable using a special switch on the terminal box. Let's look at the diagram of its internal structure.
Grundfos UPS: device, materials
1 - pump housing
2 — stainless steel gasket
3 - plastic pump impeller
4 - bearing plate
5 - durable ceramic shaft
6 - rotor protected by a stainless shell
7 - paranit gasket
8 - solid rotor sleeve made of ferritic stainless steel
9 - plain bearing with ceramic shaft
10 - stator and windings
11 - aluminum engine housing
12 — threaded plug
13 — box with terminals
Features of Grundfos Alpha2 and 2L pumps
Like the “circulators” of the UPS series, the pump of the Alpha2 model operates almost silently and economically, consuming no more than 45-60 W. But, unlike the previous series, it has a display with a digital indicator showing current energy consumption and power consumption.
In addition, pumps Grundfos Alpha2 equipped with a dry-running protection sensor, overheating protection, summer mode to protect against pump blocking (jamming) in case of long downtime and economical night operation.
And the main thing distinctive feature Grundfos Alpha2 pump is equipped with the AUTO ADAPT function. In addition to three speeds, proportional and constant pressure, AUTO ADAPT helps the pump work automatically, determining on its own what the heating system needs this moment. It’s not for nothing that Alpha series pumps are recognized as the most economical circulation pumps in the world.
Grundfos Alpha series pumps
The pump body is thermally insulated and made of either cast iron or Alpha2 (N) stainless steel. This series is equipped with a special Alpha plug for ease and speed of installation. A model with an air separator is also available - Grundfos Alpha2 (A).
Grundfos Alpha2L is a cheaper version of the pump for heating systems of the Alpha2 series. It lacks some additional features and a thermal insulation casing. But this pump has more compact dimensions, and it itself is slightly cheaper than its “big brother”.
What are the benefits of Grundfos Alpha3 pumps?
Circulation pumps in this series have the same technical characteristics as the Alpha2 model. Their main feature is the ability to quickly professionally balance your entire heating system.
This became possible thanks to special device"Alpha Reader", which transmits data from the pump to cellular telephone(smartphone). To do this, you need to install a free mobile app“Grundfos GO Balance”, and you can control the condition of the entire heating system at home.
Transferring information through the Alpha Reader device
How is the heating system balanced?
1. Download a special mobile application.
2. In the application, enter the data: area of each room, number of radiator sections, temperature.
3. Install the Alpha Reader transmitter (purchased separately) onto the Alpha3 series pump.
4. Using valves, adjust each radiator in the house according to the indications in the application.
5. After some time, you will receive a report on the balancing of your heating system.
Advantages of Grundfos circulation pumps:
— good feedback buyers and specialists;
— quality of materials and reliability in operation;
— noiselessness;
— profitability;
— wide model range;
- a bunch of useful functions in Alpha series models;
- net service centers around the country;
— 24-hour technical support via hotline.
Disadvantages of Grundfos pumps:
— high price for a pump (from 6,500 rubles for the most budget model UPS 25-40);
— Lack of wires for connecting to the electrical network.
We have sorted out the device and model range Grundfos circulation pumps for heating and their technical characteristics. The features of each model, their advantages and disadvantages were identified. The main motto of the company is reliability and modern technology, which we can verify by purchasing a pump from this world-famous Danish company. Let's watch the video.