Wilo circulation pumps for heating systems: efficiently available, securely. How to choose a circulation pump for heating Wilo: instructions, reviews, characteristics Wilo circulation pumps

This is truly effective heating is impossible without forced circulation. To do this, it is necessary to install pumps, the design of which is designed specifically for such operating conditions. And often it is a circulation pump for heating Wilo: instructions, reviews, the characteristics of which will help choose the optimal model.

About Wilo.

Why Wilo? Firstly, this company is the founder of all modern circulation pumps. Back in 1928, it developed the first system of forced fluid movement in the pipes. It was this company that made a serial pump for WILO water heating with electronic control (1988). And despite the rather tough Wilo competition still remains the flagship in its industry.

The company's product feature is an integrated approach to solve specific tasks - heating, air conditioning or cooling. Therefore, the characteristics of WILO pumps for heating meet the most stringent requirements, namely:

• A wide range of performance characteristics - maximum pressure (up to 16 bar) and temperatures (from -10 ° C to + 110 ° C) coolant;
• The centrifugal wheel provides radial movement of water, which significantly reduces the hydraulic resistance;
• A feature of the WILO pump device for heating is the "wet" stator. Such an engineering solution excludes the application of the engine air cooling in the design (it makes the water itself through the stator). In the same way, the bearing lubrication occurs;
• Selecting a control system is a three-step, with an extended switching interface or with automatic power adjustment.

But not only these indicators are defining for the consumer. All circulation pumps for Wilo heating systems are distinguished by competitive price and quality.

The pump in the heating system is designed to increase the speed of the coolant. But it must be remembered that the excess of this parameter can lead to the loss of heat transfer of radiators, since their surface is simply not able to warm up.

Wilo products

How to choose how to choose the optimal pump model for the autonomous heating system? First of all, it is necessary to calculate its power. Each instruction of the circulation pump for heating Wilo is characterized by such important indicators as pressure (M) and consumption (m³ / hour). Approximate calculation in this case incorrectly. To do this, take into account all the features of the system - the height of the house, the volume of the coolant, the length of the highway, the thermal mode of operation, etc. Optimal option for calculating the pump for water heating Wilo - online calculator or special program.

Only after this stage can be searched for the selection of a specific model. Create an objective opinion about the peculiarities of its operation will help reviews about circulation pumps for heating Wilo. But it must be borne in mind that the quality of the device's work depends largely on the proper installation and corresponding to its parameters of the characteristics of the system.

In some reviews about Wilo's pumps, they are ineffective when the electricity is disconnected. To do this, it is necessary to provide emergency power sources - batteries or diesel generator. Fortunately - electricity pump consumption is minimal.

Wilo-Star-RS circulation pumps

The main characteristics of WILO pumps for heating this class are simplicity of design and affordable cost. Its design is a zigzag pipe, in the middle of which the circulation impeller is located.

Models of this class have 3 range of rotational speed, necessary for uniform load distribution. Each circulation pump for Wilo heating systems has the following designation:

Wilo-Star-RS N / Q

Where N. - the size of the nominal inner diameter (from 15 to 30 mm), Q. - The pressure of the pressure (from 2 to 8 m).

In addition to these characteristics, you need to know the connection parameters in the pipeline and to the power grid. The Wilo pump device for STAR-RS heating has a 4-position box for terminals and an outdoor threaded connection with dimensions - ½ ", 1" and 1½ ". Design features are also expressed as follows:

• The possibility of installation in any position with a horizontal shaft;
• Protection of the IP44 class;
• Electrical network - 220V.

If, after pre-acquaintance with the instruction for the circulation pump for heating Wilo, it became clear that this power would not be enough - you can purchase a paired model Wilo-Star-RSD.

Its maximum consumption can be 7 m³ / h with a calculated pressure of 5 m. It should be considered the synchronicity of the operation of the engines at a single-rotation frequency of the shaft. Otherwise, not only the efficiency of the device will be reduced, but also the probability of its breakage will occur. In some negative reviews of Wilo heating circulation pumps, it is not mentioned about improper operation of a specific model. Therefore, their subjectivity should be taken into account.

The average cost of STAR-RS depends on its parameters and can range from 2200 to 4500 rubles.

The price of a paired model ranges from 6300 to 6800 rubles.

The pump must be installed before the inlet of the reverse tube in the boiler, but in front of the expansion tank.

Circulation pumps Wilo-Stratos

To create automatic management of water heating parameters, it is recommended to purchase the Pumps of the Stratos Wilo pumps. Their mechanical part is completely identical to STAR-RS. The difference lies in the electronic control unit.

To visualize the current characteristics of WILO pumps for a specific heating mode, an LCD display is provided. It displays the frequency of rotation of the impeller. The switching part of the device includes the most common modules - CAN, LON, MODBUS, etc. With their help, the WILO pump device switches with heating elements - with a boiler and programmer.

It is noteworthy that the number of models of the Wilo-Stratos series is much larger than that of Star-RS. They have the following basic characteristics ranges:

• Maximum flow rate - from 5 to 62 m³ / hour;
• The pressure of the pressure is from 4 to 17 m;
• Rated pressure - from 10 to 16 bar.

Connection can be performed both using flange nodes and threaded connections. The size of the latter varies from 1 '' to DIN-100.

Such a variety of models of Wilo circulation pumps for heating explains the large range of their cost - from 11,700 to 67,000 rubles.

During installation, you need to carefully read the instructions for a specific circulation pump for Wilo heating. It will necessarily indicate that, regardless of the selected position, the shaft must be strictly horizontally. This is a prerequisite for normal operation.

Is it possible to repair the pump yourself in case of breaking it? The video material shows an example of restoring its performance:

Installation and operation instructions

Circulation pumps Wilo.

Constructive row: rp, p,

DOP, DOS.

Circulation pumps are designed to pump fluid in a closed pipe system.

Main applications:

Systems of water heating;

Cooling and air conditioning systems;

Industrial systems.

1.2 Technical parameters of pumps
1.2.1 Constructive Rows

Several types of circulation pumps are made to meet the technical requirements of various systems. They are combined into the following structural series:

- RP, P constructive series, Max. The number of revolutions of 1,400 rpm., 4 steps of the number of revolutions,

- RP -

- P -

- RS, S, S,max. Number of revolutions 2700 rpm, 4 steps

revolutions,

- RS -pump with a threaded pipe compound

- S -pump with flange compound.

- DOP constructive series, DOS, Paired pumps, 4 levels of revolutions,

- DOP -max. number of revolutions 1400 rpm, with flange compound,

- DOS -max. The number of revolutions is 2700 rpm, with flange compound.
1.2.2 Key to the notation

Purchased Wednesday:

· Water of the heating system according to VDI 2035 standards;

· A mixture of water with glycol in the Max ratio. 1: 1. When adding glycol, the viscosity of the fluid rises, so the hydraulic and power data of the pump should be adjusted depending on the percentage of glycol. Apply only high-quality antifreeze with the corrosion protection property, follow the manufacturer's instructions;

· Application of other liquids must be coordinated with WILO;

The permissible temperature of the pumped medium from -10 ° C to + 130 ° C, briefly up to 140 ° C. Pumps are protected from condensation moisture penetration;

Maximum allowable ambient temperature + 40 ° C;

The maximum allowable operational pressure according to the typical table;

The minimum pressure on the suction nipple of the pump depends on the type of pump and on the water temperature:

DN \u003d Nominal Internal Connection Diameter
- Electrical connection voltage according to a typical table.

Maximum power consumption according to a typical table.

Nominal Internal Connection Diameter according to the Type Key

DN 25: R 1 (æi 28)

DN 30: R 1 1/4 (æi 35)

Days\u003e 32: Flange compound (DN ...) c hole for connecting a pressure measurement device with a diameter of RP 1/8.
2 Safety technique
This instruction contains all important instructions that must be respected during installation and operation. Therefore, it follows to installers and operating workers to carefully read this instruction. Follow not only instructions given here, but also special safety instructions that are given in the following instructions.

2.1 Special symbols

All safety instructions, non-compliance with which can lead to a breakdown of the pump and are dangerous to human life, are indicated by the symbol:

Electric voltage warning:

Instructions, non-compliance with which can lead to a malfunction of the installation or individual parts, are indicated by the symbol:

ATTENTION!

2.2 Personal qualifications

Installation should be carried out only by qualified specialists.
2.3 Consequences of non-compliance safety instructions

Failure to follow instructions may entail heavy consequences for staff and installation damage. In addition, it can lead to deprivation of the right to compensation for damage.

In particular, non-compliance with the instructions may lead to the following consequences:

Refusal of important installation functions;

The emergence of danger to the health and life of people due to electrical or mechanical influences.
2.4 Safety Instruction Safety

Observe safety regulations!

In particular, comply with all domestic instructions and safety rules.
2.5 Safety Inspection and Installation Safety

It is necessary to ensure that all inspection and installation work is carried out only by personnel qualified in this field and after a careful study of this instruction.

Verification of the pump can be performed only in a complete stop state.
2.6 Unauthorized restructuring and manufacture of spare parts

All installation changes are allowed only with the prior consent of the manufacturer. Genuine spare parts and components of the manufacturer - guarantee your safety. The use of other spare parts is removed from the manufacturer for possible consequences.
2.7 Invalid methods of exploitation

The safety of the supplied installation is guaranteed only if it is applied only in the conditions and purposes specified in this manual.

In no case cannot be allowed to exceed the data specified in the supplied passport.
3 Transportation and storage

ATTENTION!
When transporting and storing, protect the pumps from dampness and mechanical damage.
4 Description of pumps and accessories

4.1 Description of the wet stroke pumps

In the wet pumps, all moving parts including the engine rotor is washed with liquid. Shaft seals are not required. The liquid lubricates the sliding bearings, cools them and the rotor.

Paired pumps are identical and installed in one case. They are equipped with an integrated switching valve. Each pump can work autonomously, as well as both - at the same time. Paired pumps can be used in two different versions:

Working and reserve pump (in case of failure of the main pump, the reserve work is included in the work);

The main and peak pump (the latter is included in addition when peak loads).

At the same time, both pumps may vary by installed capacity. Installation with a paired pump, therefore, can be configured to an initiative production situation.

Pump engine:

For single-phase current 220 V: Special engine only for use with single-phase current;

For three-phase current 380 V: Special engine only for three-phase current. The engine can not be connected according to the scheme of the matte.

Engine protection:

Pumps with an internal diameter of 25/30/40 and an impeller up to 80 mm (single-phase and three-phase current) do not need the engine protection. The overload current cannot damage the engine and lead to its blocking.

Engines of all other pumps are equipped with contact winding protection (WSK). With an unacceptable engine overheating, protection by switching switch, for example, SK 602/622 or C-SK (accessories), turns off the engine. After cooling the engine, the pump can be turned on again. To protect the engine, a switch (SK 602, SK 622 or C-SK) is strongly recommended. When using Switchable devices WILO for automatic regulation, there is no need for special switches, as they are already integrated into the switching devices.

To control the paired pump, an automatic switching device S2R3D is required. The switch to protect the engine is also integrated into the switching device.
Switching the number of revolutions:

All pumps have a 4-speed manual switch (on the terminal box). At the lowest stage, the number of revolutions is reduced by 40-70% of the maximum. Electricity consumption drops at the same time by 50%.

Pumps with single-phase current motors as a switch have a rotating knob on the terminal box housing (Fig. 1a, pos.1).

Pumps with single-phase current motors P 2 less than 75 W have the ability to connect a two-stage automatic switch (S2R-H, timer).

On pumps with a three-phase current motor, switching the number of revolutions is carried out by switching the 4-speed plug on the terminal box. In addition, it is possible to connect a 2/4-speed automatic switch (Fig. 1b, pos.1).
Automatic control and adjustment devices:

Automatic control devices and pump power adjustment depending on hydraulic needs are available in the Wilo program.
4.2 Delivery volume

Pump assembly;

Installation and operation instructions.
4.3 Accessories (for separate request)

Connecting nuts for pumps with threaded joining;

Disconnecting devices for complete protection of the engine SK 602, SK 622, C-SK (last only for 380 V);

SK601 timer, (direct connection only to single-phase current pumps P 2 less than 75 W, for all other pumps only complete with SC 602 or SK 622);

S2R-H plug;

Switches S2R2,5, S4R2,5, S2R3D, S4R2,5D;

Recinitive control device AS 0.8MP.
5 Cabinet and Installation

5.1 Installation

Installation is made after the end of all welding and plumbing works and washing the pipe system. Pollution can disrupt pumps.

- Pumps must be mounted in well-visible places so that in the future it can be easily checked or replacing the pump.

It is recommended to install the shut-off valve before and after the pump. This disappears the need to re-fill the system when replacing the pump. The reinforcement should be mounted so that in the event of a duct water does not fall on the electric motor and the terminal box.

Installing the pump in the system with an open expansion tank is always made after the location of its connection.

Installation to produce without mechanical stress and only with a horizontally located pump shaft; The position of the installation is followed as indicated in Figure 2.

The arrow on the pump housing shows the flow direction.

The engine terminal box should not be directed down, because water can easily get into it. If you need to rotate the engine housing.

ATTENTION!
Gaskets do not damage.

ATTENTION!
When insulated pipelines, only the pump housing is insulated. The engine must remain open.

Pumps equipped with a plug module, air access to the module must be free.

5.2 Electrical connection

WILO pumps can be connected to 220/380 V electrical network and to the European network 230/400 V.

The electrical connection must be made strictly according to the manual with the plug connections or the multipole switch with the minimum distance between the contacts \u003d 3mm.

To ensure protection against water and reduce the load on the sealing nut, you must apply a cable of sufficient diameter.

When installing pumps in systems with water temperature of more than 90 ° C, a temperature cable must be applied, which in no case should not touch the pipeline or with the pump housing.

Type of current and voltage in the network is risen and compared with data in the table on the pump.

- Observe the type of pump data.

- Network connection and connection of the SK 602/622 switch, respectively, the schemes (Fig. 3a to 3E) are executed (see also 1.22 and 4.1):

3A: 220 V, non-blocking engine.

3B: 380 V, non-blocking engine.

3C: 220 V, with WSK (Contacts of thermal protection of the engine winding).

3D: 380 V, with wsk.

3e: When installing the switching plug module C-SK, the 3D scheme is replaced with 3E.

Run grounding.

When applying other defense devices, terminals 15 and 10 (WSK) must be connected to the engine control circuit (max. 250 V) together with the device that prevents re-inclusion. Then the pump in all four steps is protected.

ATTENTION!

- The thermal switch setting must be made according to the appropriate maximum current for the selected speed of the revolutions (CMT-Table).

When connecting automatically working switches, follow the appropriate installation and operation instructions.
6 Commissioning

6.1 Filling the system and air removal

The system is properly fill in properly. Removal of air from the system occurs independently after the short-term power on the pump. Short-term work "on dry" does not harm the pump. If direct air removal is required from the pump, it is possible to produce this as follows:

Disable pump;

Close the shut-off valve at the output;

Carefully unscrew the screw to remove air (Fig.4).

- the pump shaft carefully push back;

Electrical parts protect against liquid and steam;

Turn on the pump;

After 15 ..... 30 seconds of work Pump Turn off and twisted air output screw;

Armature Open and turn on the pump.

ATTENTION!
With an open screw hole, depending on the pressure value, the pump can be blocked.

6.2 Adjustment

- Checking the direction of rotation of three-phase engines:

Before checking the rotation of the screw on the front of the engine, unscrew. Through short-term inclusion, check the direction of rotation of the shaft with an arrow on the plate. With the wrong direction of rotation, change 2 phases.

- Switching the number of revolutions:

Single-phase current engines: Switching between 4 steps of the speed number is performed manually by the engine terminal box switch. Three-phase current motors: Switching between 4 steps of the number of revolutions is performed manually by switching the 4-speed plug on the engine terminal box. Loosen the central bolt and set the 4-step plug with the arrow to the desired level of the number of revolutions. The central screw is tightened again.

7 Service

Pumps do not need maintenance.
8 malfunctions, reasons and their elimination

8.1 Pump does not work when power included

Check the fuse.

Check the voltage on the pump (follow the type data).

Check the size of the capacitor (follow the type data).

The engine is blocked, for example, due to the sediments of solid particles contained in the water water.

Remedy: Unscrew the central shut-off screw and check the pump rotor running, with a screwdriver, the pump is released.

- When you stop the pump due to the operation of the engine protection, check the protection switch.
8.2 Sumit pump

When cavitation due to insufficient pressure on the suction of the pump. Elimination: Increase the pressure in the system within the limits permissible.

Check the number of revolutions, if necessary, set to a lower level.
If you cannot eliminate the malfunctions yourself, please contact Wilo customer service.
9 Spare parts

Supplied spare parts:

Pump housing, assembled.

Reserve engine, assembled.

Terminal box, assembly.

Case seal.

Switching valve, assembly (only for DOP / DOS).

When ordering spare parts, specify all type of pump data.

Drawings:

1. Remove the number of revolutions.

2. Installation of the pump.

3. Connection for individual pumps.

4. Recalling the screw for air removal.

The right to technical changes remain behind the manufacturer.

Circulation pump is an integral element of any heating system with forced circulation. It is from this small device that the stability of the circulation of the coolant on the pipeline depends.

The pumps from the manufacturer Wilo can rightfully be considered one of the best.

Why do you need a circulation pump

In some cases, it is possible to do without this item when it comes to natural circulation systems. In this case, the coolant moves through the pipes due to the pressure difference, which occurs when water is heated in the boiler. The heat carrier when heated expands, part of it is simply extruded up by the feed pipe, rising to the highest point water falls into radiators and, gradually cooling, moves back to the boiler ().

The only advantage of such a housing heating organization can be called absolute independence from electricity. This is important, for example, when heating a country house or cottage in a hard-to-reach area. In addition, the lack of moving elements in the system extends its service life

But it's better to install a circulating pump for heating for heating in front of the boiler.

As for the advantages, the installation of such a device makes it possible:

• provide a stable circulation of the coolant through pipes. Modern models are able to reduce the number of revolutions themselves, making heating at home not so strong. This quality is especially useful in terms of financial savings;
• the pressure will not depend on the diameter of the pipe (in systems with natural circulation, small diameters are better not to use);
• the pumping does not reduce the durability of the system as a whole, modern models can work for 20-30 years.

From the flaws, it is possible to note the small cost of electricity and noise. But the boiler is usually placed in a separate room, and the price of electricity is not so high to give up the pump.

Classification of circulating pumps

As for the principle of operation, all devices of this kind can be divided into 2 types:

• with a "wet" rotor;
• with a "dry" rotor.

For heating a relatively small house, options are preferable to "wet" rotor. They obtained such a name due to the fact that the rotor (the part that rotates) is placed directly in the pumped coolant.

Circulation pumps for heating WILO of this type have the following features:

• almost completely silent;

Note! In small houses, it is sometimes there is no possibility to bring the boiler away from the residential premises, so silentness is an important advantage.

• the lubricant will not need - the rotor is in water, so the coolant itself performs its role;
• for greater reliability, the rotor chamber and the stator are separated by a solid stainless steel sleeve;
• the only and rather significant disadvantage can be considered a low efficiency - about 50%.

Note! The "wet" pump must be set so that its shaft is necessarily horizontal.

For the operation of a powerful system, it is better to use the "dry" circulation pump Wilo for heating. In contrast to the "wet" analogue, it does not contact the heat carrier at all, and it is possible to achieve a high degree of tightness due to the most pumped fluid.

During operation, the thin film of the fluid finally seals microscopic gaps between rotating surfaces. Over time, sealing rings are a bit older, but the problem decides what they are spring-loaded and simply shift to the value of wear, the main thing is that the overall has happened evenly.

The main advantage of "dry" devices can be called efficiency of more than 80%. And the disadvantages you can record a high noise level, therefore such pumps are used mainly in powerful systems.

Read more about modern circulation pumps

One of the basic requirements for the modern heating system can be considered flexibility - that is, the ability to adjust its power in a wide range. Circulation pumps for Wilo heating systems, as it is impossible to suit it.

In the distant past, circulating pumps were unregulated, that is, they did not know how to reset the frequency of rotor revolutions. This led to the fact that the heating system worked approximately with the same power at any time, even when there was no special need.

Features of the work of adjustable pumps

In our time, special attention is paid to the issues of energy saving, so that new heating systems are practically not installed unregulated devices.

Using adjustable devices allows you to:

• change the rotor rotation frequency at any time, for example, to save energy at night, the device itself resets the revolutions;
• set any manual mode manually, it is useful if the owner plans to leave for a couple of days from the house. In this case, the heating can be left at a minimum level.

Note! The German manufacturer Wilo releases models for work in very harsh environments. If the content of lime content is large, then you should pay attention to the Wilo Star model.

As a rule, the Wilo Heating Circulation Pump can work in several modes:

• Pp1 and pp2. - in this case, the pressure in the system will change, and the designations correspond to the operating characteristic with the maximum pressure (PP1) and minimal (PP2);
• CP1 and CP2. - in this case, the pressure remains unchanged, and the pump is adjusted under the flow rate of the coolant, changing the number of rotor revolutions;
• modes of operation, numbered I, II and III. Unit corresponds to the speed of rotation at a minimum operating characteristic, II and III - the speed of rotation at the average and maximum rotational frequency;
• it is possible to switch the modes of the day / night.

Placement and installation rules

If there is no possibility to invite specialists, then the installation can be performed with your own hands.

You only need to remember a few simple setup rules:

• it is forbidden to place a pump at the outlet of the boiler - the hot heat carrier will reduce the service life of the device at times. Optimal is considered to be placed on the pipe section before entering the boiler;
• the arrow on the housing shows the direction of movement of the coolant, it must be directed to the boiler;

• when the pump is already installed and filled with water, air is removed from it;
• the pump is installed so that it can be quickly insulated from the flow of water if necessary. For this, the bypass is suitable and cutting reinforcement is installed.

The pump installation instruction is not particularly difficult, threaded connections are used, so if necessary, it will be possible to quickly remove it for repair or replace. Before installing the boiler you need to cut off the locking reinforcement. Also, when installing the check valve is established (with the exception of open systems) and the filter.

In Russia, the official representative of the international company WILO is Vilo Rus LLC. She has many partners in many cities of the country. A certificate is issued to each partner, which confirms his right to sell the products of this brand. We do not recommend buying anything from certified dealers, as you can run into a fake.

Heating pumps for wet rotor

The technical characteristics presented in the pump catalog of the pump with a wet rotor allow them to work in autonomous heating with a pressure of up to 10 bar. The coolant is pumped due to the impeller fixed on the shaft (rotor). The peculiarity of this line is that the rotor should always be immersed in water (coolant), which performs two important functions: lubricant and cooling. This condition imposes certain setup requirements - the rotor must be in a horizontal plane. Performing this simple rule, you will not have to think about the repair of pumps for the pump (see).

The line is divided into two categories: with automatic power adjustment and with manual power adjustment. A total of 21 model of pumps with a wet rotor are represented. Their body is made of gray cast iron or bronze, steel rotor, plastic impeller, metallographic bearings. On the circuit, the unit can be installed by means of a threaded or flange compound. The last option is characteristic of Wilo industrial pumps.

Until now is the most popular and economical.

Before calculating the necessary thermal power.

In autonomous heating, it is necessary through a mixing unit that adjusts the temperature of the coolant.

Before the pump is necessarily a coarse filter (mud). It is necessary that the solid particles do not fall on the blade of the impeller and did not break it. The coolant always contains deposited salts or metals (scale), and the quality of water in the central networks is generally terrible.

The pump is attached to the contour by American - the detachable connection, which in turn is mounted on the ball valves. This will allow you to cut off the pump from the contour and remove the water from the entire system for repair or maintenance. . Without a supplied water supply - long.