Where to install the thermostatic valve of the heating boiler. Manual valve for radiators. Types of three-way valve actuators

Manufacturer : Viessmann Werke GmbH & Co. kg,

Viessmannstraße 1 - 35108 Allendorf (Eder), Germany

Wall

gas heating boiler

VITOPEND 100- W

Type:WH1 D

· Low-temperature single-circuit/double-circuit gas heating boiler.

· Place of installation: wall-mounted.

Modulated automatic atmospheric burner.

· Open and closed combustion chamber.

· Programmable heat generation with constant and weather-dependent heat carrier temperature.

Full automation of all processes.

· Application: heating and hot water supply.

· Type of combustion and exhaust gases: natural (atmospheric) and forced (turbo).

· Nominal thermal power: from 10.5 to 31 kW.

Modification of wall mounted gas boilers VITOPEND 100-W, type WH1D

Table number 1.

Purpose and scope

Low power low temperature hot water boilers Viessmann Vitopend 100-W WH1D with an atmospheric modulating burner are designed and recommended by the manufacturer to ensure individual heating and cooking hot water. Scope of single / double-circuit gas boilers wall-mounted Viessmann Vitopend 100-W - the main source of the system autonomous heating private residential buildings and other premises, small in area and construction volume.

According to the purpose, the Vitopend 100-W single/double circuit hot water boiler can only be installed and operated in closed heating systems with forced circulation of the coolant and taking into account the relevant installation, service and operation instructions in accordance with Russian standards and the European standard EN 12828:2014 "Systems heating in buildings. Design of water heating systems.

In boilers Vitopend 100-W with open cam combustion uses natural draft to remove combustion products. Coaxial system for the removal of combustion products LAS boilers Vitopend 100-W with closed camera combustion ensures the forced removal of combustion products. The rated heat output of the boiler, depending on the model and mode of operation, ranges from 10.5 to 31 kW.

The Vitopend 100-W boiler is intended for use in any climatic conditions and is designed exclusively for heating a heat carrier that has the properties of drinking water. The basic condition for the intended use is a fixed wall installation. For ease of installation, a specially designed template is attached with the designation of the main fastener points.

It is possible to combine the Viessmann Vitopend 100-W boiler with additional units approved for operation with this boiler system. So, for example, a single-circuit gas heating boiler Vitopend 100-W, when equipped with a Vitocell 100-V water heater, is used for hot water supply, both domestic and drinking.

In some cases, purposes of use that go beyond the established limits may require the approval of the manufacturer. Non-intended use is considered to be production or industrial use or for purposes other than space heating or domestic hot water.

Improper operation (handling) of the Vitopend 100-W gas boiler is prohibited and releases the manufacturer from liability for failure of the boiler system. Change elements heating system in relation to their intended functionality is also considered improper handling of the boiler.

The low-temperature wall-mounted gas boiler Vitopend 100-W, type WH1D is easy to transport, has a small weight and overall dimensions, which makes it possible to place it even on small areas, for example in wall niches.

Specifications

Table number 2.

Device and product description

Gas low temperature hot water boiler flow type low heat output Viessmann Vitopend 100-W, type WH1D is one of the most popular high-performance, economical wall-mounted boilers, and for a potential owner it is especially important: with an optimal ratio between price and quality - cost and performance. The rated heat output developed by Vitopend 100-W gas boilers, type WH1D, provides the most comfortable and economical heating residential buildings of various area and construction volume. Thermal power boilers with a closed combustion chamber for space heating and hot water preparation is 24.8/31 kW and 24/30 kW - with an open combustion chamber.

Wall mounted hot water Viessmann boilers Vitopend 100 W are divided into two types: single-circuit and double-circuit. The process of heat exchange in boilers of both types is basically the same and consists in the following: the combustion products of the fuel heat the water (coolant) passed through the lamella-type primary heat exchanger. The main difference between the two types of Vitopend 100-W WH1D boilers is that in addition to the primary heat exchanger, elements of the hot water heating device for hot water supply are installed in the double-circuit boiler. That is why an important element double-circuit boiler Vitopend 100-W WH1D is a flow heat exchanger lamellar type small in volume, cold water from cold water - cold water supply system is heated by hot coolant circulating in the system. The heat exchanger for hot water preparation is installed on the chassis of the AQUA-BLOC hydraulic unit.

The direction of the coolant flow is set by another important element of the Vitopend 100-W WH1D boiler - a three-way valve. In its state, two positions are possible: in one of them, the hot coolant is supplied to the system central heating, in the other - the coolant goes to the heat exchanger, heating the water for hot water supply. In this case, the DHW mode is considered a priority, to which the valve switches when any hot water flow tap is opened. It controls the operation of the three-way valve of the relay (sensor) of the flow installed in the boiler. Convenient regulators allow you to quickly set the flow temperature of the heating line and hot water.

The Vitopend 100-W gas boiler, type WH1D, provides high hot water comfort with a continuous output of 14.3 l/min (at 30/31 kW). Maintaining a constant temperature of hot water is carried out thanks to electronic regulation and the presence of a temperature sensor on the output line. The DHW temperature setting range is 30 - 57°C.

The single-circuit boiler Vitopend 100-W WH1D is naturally not equipped with a hot water heat exchanger for the DHW system, however, it is possible to complete the boiler of this type independent DHW cylinder from Viessmann, e.g. Vitocell 100. The degree of water heating is measured by a temperature sensor DHW tank, which is connected to the electrical circuit of the boiler (Fig. 16).

The temperature in the supply line or hot water can be controlled from the digital indication on the display. Boilers Vitopend 100 are equipped with a diagnostic system that displays the operating and service status of the device, as well as emergency modes. The pressure gauge installed on the boiler control panel measures the pressure in the boiler system.

Boiler Viessmann Vitopend 100-W, type WH1D has long term service and reliable in operation even with significant fluctuations in gas pressure and electrical voltage. Due to the small overall and mounting dimensions, the boiler is suitable for installation even on the walls of small kitchens or in wall niches utility rooms.

The main advantages of the atmospheric low-temperature gas boiler Vitopend 100-W, type WH1D wall-mounted:

​ gas water heating single/double circuit boiler with a range of thermal power from 10.5 to 31 kW;

Modulated atmospheric burner for operation on natural and liquefied gas;

coefficient useful action: 83% (Hs) / 92% (Hi);

Boiler capacity in DHW mode is 14.3 l/min;

Maintaining a constant temperature of hot water thanks to electronic regulator temperature;

open and closed combustion chamber;

Compliance with high environmental requirements;

· Classification of a boiler with a closed combustion chamber for energy efficiency in accordance with 92/42 EWG "Three Stars";

Availability of a system for diagnosing the operating modes of the boiler, with information about the emergency mode;

Availability of a frost protection system;

compact size and silent operation;

low energy consumption of the boiler due to the use of weather-dependent automation;

high reliability of ignition;

Built-in gas pressure control switch for automatic switching on after a failure in the gas supply;

Silent start of the boiler thanks to the intermittent ignition system;

The small weight of the boiler facilitates transportation;

compact design contributes to the ease of installation of the boiler installation;

Supplied ready to use;

high operational reliability and long service life;

Possibility of combination with capacitive storage.

By design, the Viessmann Vitopend 100-W gas boiler is a rectangular case, inside which a heat exchanger, a gas burner, an AQUA-BLOC hydraulic unit with a circulation pump, a membrane expansion tank and other elements necessary for the operation of the boiler (Fig. 1). Highly effective thermal insulation of the combustion chamber protects the outer surface of the boiler system from heating.

A modulating atmospheric burner is used in the Viessmann Vitopend 100-W hot water single / double-circuit gas boiler of low thermal power. With smooth modulation control, the burner changes its power within the specified range, maintaining the controlled parameter - the temperature of the supply line at a given level. Hence, necessary element The control systems are a temperature sensor and an electronic controller. Modulating atmospheric burner gas boiler The Viessmann Vitopend 100-W is pre-configured for natural gas type "E". A set of replacement jets, which is not included in the scope of delivery, allows the boiler burner to be converted to work on liquefied gas. The built-in gas pressure control switch automatically switches the boiler into operation after a failure in the gas supply.

Removal of products of combustion of gas boilers Viessmann Vitopend 100-W with a closed combustion chamber is carried out by means of a separately located fan. The fan parameters are calculated depending on the maximum burner power and aerodynamic drag gas-air path of the heat generator. The air supply is regulated by changing the position of the air damper when the burner power changes.

Heating of boiler water takes place in the primary flow-through lamellar type heat exchanger (Fig. 2). At the same time, in boilers of different thermal power, the number of lamellae also varies. So, for example, in boilers with a power of 30/31 kW, the number of lamellas is 98, and in boilers with a power of 24/24.8 kW, there are 82 lamellas. The total volume of the primary heat exchanger is 1.2 liters of boiler water (Table 2)

Insofar as heating installation– water-heating wall-mounted single-circuit gas boiler Viessmann Vitopend 100-W, Since the WH1D type is delivered in a state of operational readiness, the boiler automation is pre-set in the factory for operation in standard mode. At the same time, the boiler water temperature setting of the Viessmann Vitopend 100-W heat generator with low heat output does not exceed 76 °C. Primary factory setting can be changed at the discretion of the user in order to create more comfortable conditions residence. By resetting the thermostatic controller, it is possible to increase the boiler water temperature and thus the flow temperature. However, the manufacturer recommends that, in order to minimize distribution losses, the DHW system and heat distribution device should be set to a supply temperature of no more than 70 °C. During operation of the gas boiler, the temperature of the boiler water is constantly displayed on the display located on the control panel.

In the boiler Viessmann Vitopend 100-W, Type WH1D has built-in automation that allows you to control the boiler in operation mode with a constant supply temperature. The operating modes are carried out using the built-in controller and are set by the controls on the boiler panel (Fig. 3). All functions of the boiler installation can be set with just two control knobs: hot water temperature control and heat carrier temperature control. At the same time, easy-to-use regulators allow you to quickly set the flow temperature of the heating line and hot water supply.

During the operation of the Viessmann Vitopend 100-W boiler, type WH1D without control device remote control(thermostat), the desired room temperature is set by the “Heat carrier temperature” knob. To maintain the set temperature in the premises of the house to the Vitopend 100-W boiler, type WH1D four types of remote control room thermostats (control devices) can be connected:

– Vitotrol 100, type RT room thermostat for controlling the boiler according to the set room temperature;

– Vitotrol 100, type UTA programmable room thermostat;

– Vitotrol 100, type UTDB digital thermostat with large LCD display;

– Vitotrol 100, type UTDB-RF room thermostat with integrated receiver and separate radio transmitter.

It should be noted that Viessmann Vitopend 100-W boilers are equipped with a built-in anti-freeze function and a diagnostic system that, using digital indication on the display, informs about the operating and service modes of the boiler, as well as about the occurrence of an emergency mode (Table 3).

Table number 3.

The AQUA-BLOC hydraulic unit with circulation pump (Fig. 5) is installed in the lower part of the boiler on an easily removable chassis and is equipped with a MULTI-STECKSYSTEM quick coupling. This makes it quite easy to make service maintenance, since all the most important components of the unit are easily accessible from the front of the boiler and can be quickly replaced if necessary. Technical characteristics of the circulation pump are given in table No. 4.

Table number 4.

The circulation pumps UP 15-50 and UP 15-60 are small in size and light in weight, operate almost silently and at the same time consume a minimum amount of electricity. The pump housing is made of cast iron, the motor housing is made of extruded aluminium. The motor shaft of the circulation pump is made of hardened stainless steel and is mounted on bearings that are lubricated using the pumped liquid. The circulation pump impeller is made of durable technopolymer.

An important element of the combined (double-circuit) boiler Viessmann Vitopend 100-W WH1D is a small plate-type heat exchanger in which cold water from the cold water supply system is heated by the hot coolant circulating in the system. At the same time, the number of plates varies between boilers of various capacities and heat exchanger volumes. So in boilers with a thermal power of 30/31 kW, the number of plates is 14, and in boilers with a power of 24/24.8 kW - 12 plates.

The expansion of water (coolant) is designed to compensate for the membrane expansion tank, the total volume of which for boilers with a capacity of 24/24.8 kW is 6 liters, and for boilers with a capacity of 30/31 kW - 10 liters (Table 2).

Nomenclature and overall dimensions

Installation instructions

Vitopend 100-W wall-mounted gas boilers have been specially designed for quick installation and reduced maintenance time. Installation of wall-mounted boiler Viessmann Vitopend 100-W, type WH1D should be entrusted specialized organization performing service. However, work on gas equipment may only be carried out by installers who are authorized by the responsible gas supply company.

The room for the installation of a floor-standing single-circuit gas boiler Viessmann Vitopend 100-W must be with normal humidity and meet the requirements of the relevant building regulations and norms, in particular SNiP 41-01-2003 "Heating, ventilation and air conditioning". Failure to comply with these requirements may result in malfunctions and damage to the boiler system.

Frost protection and proper ventilation are essential for normal operation of the boiler. So, for example, for the operation of the boiler burner, the required volume of air must be taken from the room, for which it is necessary to install a special duct-air duct that goes beyond the outer wall - into the atmosphere. To prevent drafts in the burner area, the air intake duct must not end directly behind the boiler. With a rated heat output of a gas boiler up to 35 kW, the cross section of the air duct must be at least 150 cm².

It is not allowed to pollute the air of the room for the installation of the Viessmann Vitopend 100-W floor single-circuit gas boiler with halogenated hydrocarbons, which, for example, are part of aerosols, paints, solvents and detergents. In the event of air pollution by halogenated hydrocarbons, the boiler may only be installed if sufficient measures are taken to ensure that uncontaminated combustion air is supplied. In addition, strong dust and high humidity are not allowed in the room.

To avoid damage and deformation of the connecting pipes of the Vitopend 100-W boiler, use an unsuitable mounting tool and apply excessive force (load) is strictly prohibited. Pipelines connected to the heating boiler during installation and after installation during operation should not experience residual mechanical stresses and loads (bending, misalignment, compression, torsion, tension, vibration, distortions, uneven tightening of fasteners).

To connect the boiler to the gas pipeline and for surface mounting of the hot water supply and heating system, a connection kit with straight pipes is included (Fig. 11). For visual completion of the boiler connection, a protective decorative reinforcing cover is supplied.

For connection to the Vitopend 100-W boiler of the underfloor heating system, a set with a thermostatic mixer is offered, which limits the maximum supply temperature to the underfloor heating system and guarantees the operation of the boiler without the formation of condensate (Fig. 12). The kit comes with a decorative cover.

Several options are available for connecting a Viessmann DHW cylinder with a capacity of 120 or 150 liters to the boiler. This can be a set of connections for mounting a water heater under the boiler, as well as a set of connections for mounting a water heater installed next to the boiler.

Since the Viessmann Vitopend 100-W WH1D gas boiler is supplied ready for direct operation, the main installation electrical connections are made inside the boiler at the factory. Mounting the connection of auxiliary equipment, e.g. room thermostat The Vitotrol 100 or the Vitocell 100-W DHW cylinder is connected to the connections of the boiler controller, so this work and the mains connection must be entrusted to a specialized service company. For example, the connection of the "L" and "N" cores of the mains cable must be observed, as an incorrect connection can lead to serious injury and damage to the device. In addition, the connecting cables must not come into direct contact with hot parts, as this will damage the cables.

Cable NYM-J 3 × 1.5 mm 2 recommended by the manufacturer for powering the equipment of the Vitopend 100-W WH1D boiler from electrical network, has the appropriate number of cores for external connections. The power supply network must have neutral wire, and the mains supply cable must have a disconnector that simultaneously disconnects all ungrounded wires from the mains with a contact opening of at least 3 mm.

When installing the unit in wet rooms, it is forbidden to connect auxiliary equipment on the controller to the boiler in the zone high humidity. When installing the boiler outside wet rooms connection of accessories to the network can be done directly on the controller. This connection is controlled directly by the controller's power switch.

The manufacturer recommends installing a gas boiler in the area of ​​​​the passage chimney through the building structure. The flue gas outlet must be connected to the chimney in the shortest possible way via a chimney. In this case, sharp bends in the gas outlet pipes should be avoided. When installing the chimney, it is necessary to check that the cross section of the chimney pipes and the chimney matches the cross section of the boiler nozzle. A distance of at least 100 mm from the chimney to flammable structural elements must be ensured. If necessary, provide thermal insulation of the chimney pipe.

The well-deserved confidence of customers in Viessmann and the correspondingly high demand for its products, which comply with European UNI-EN standards, were also noted by manufacturers of counterfeit goods. On the Russian market cheap fakes of Viessmann products have penetrated, which are distinguished by a low price and equally low quality.

The use of such "branded" goods is fraught with the occurrence of emergency force majeure circumstances associated with the use gas equipment. The money spent to remedy these circumstances is nothing compared to the cost of genuine Viessmann branded products.

If you want to avoid such surprises, purchase original Viessmann products only from authorized distributors.

RANDSTROY Group of Companies

is an official distributor VIESSMANN products

in Russia and CIS countries

The desire of the homeowner to purchase the most economical gas boiler is quite understandable - the cost of fuel is constantly rising, so the creation effective system will significantly reduce the cost of heating the house and preparing water for hot water supply.

Variety of boiler brands

What criteria should be used to evaluate a gas boiler for a home when purchasing equipment for a local heating system, you will learn from this article.

Efficiency of gas boilers

First of all, it is necessary to understand how the thermal energy of the burning fuel is distributed. The energy carrier for a gas boiler is natural or liquefied gas, while the calorific value of any of these fuels must be within regulatory requirements- only in this case the heating unit will be able to generate heat in accordance with its passport indicators.

The calorific value of gas is a value indicating how much heat is released during the combustion of a unit volume of fuel. The heating unit directs the bulk of this energy to heat the coolant in the building system, i.e. for home heating. The greater the percentage of energy will be used to solve this problem, the better.

The efficiency of a heat generator (expressed as a percentage) is an indicator of exactly what part of the heat of combustion of the energy carrier is used to heat the house. The higher the efficiency, the more efficiently the fuel is used, the less it is required to maintain the heating system in normal mode.

Efficiency and economy depend on each other

In turn, the more fully the fuel is used and the lower its consumption, the less money is spent on the purchase of an energy carrier. Thus, the efficiency of the boiler is directly related to its efficiency.

In the combustion process gas fuel under normal conditions and with a sufficient supply of oxygen, CO 2 (carbon dioxide, aka carbon dioxide) and H 2 O (water).

Thermal energy obtained as a result of gas combustion is consumed :

• for heating the coolant;
• on the evaporation of water vapor obtained during combustion;
• goes down the chimney along with flue gases.

The most economical gas boilers differ from the rest in that the absolute maximum of thermal energy is directed to heating the house, while losses in the last two items of the list are minimized.

Combustion chambers and burners

The efficiency of a heat generator running on natural or liquefied gas is usually 90-95%, for premium units this figure can reach 98%.

To a certain extent, the efficiency of the device depends on the characteristics gas burner with which the boiler is equipped.

When choosing a heat source, you should pay attention to the type of combustion chamber of the unit - it can be open and closed:

• air enters the open combustion chamber from the room;
• air enters the closed chamber from the street through coaxial chimney and is blown by a fan.

Obviously, in the second case, the combustion process takes place at a higher oxygen supply, due to which the fuel burns out almost completely, giving maximum thermal energy. This not only reduces the number flue gases, but also increases the efficiency of the boiler.

The burners themselves are of two types - with step and smooth adjustment, thanks to which you can change the power of the unit. The most inexpensive units are equipped with a single-stage or two-stage burner.

If the gas boiler is equipped with an electronically controlled modulating burner, it is able to save energy as much as possible. This is due to the fact that the degree of heating of the coolant is smoothly regulated depending on the real needs of the house for heat. This is one of the most important conditions for reducing fuel costs during the heating season.

Attention! It makes sense to install an efficient and reliable gas unit with a modular burner and forced air supply to the furnace as part of a heating system with individual microclimate control in each room. This requires serious investments at the stage of purchase and installation of equipment, but in the future the system pays for itself due to serious energy savings.

A little more about Boiler room efficiency installations

This indicator depends not only on the characteristics of the furnace and burner device, but also on how thermal energy is transferred.

At the first stage, the heat received in the combustion chamber heats the water jacket of the unit. Then the flue gases and the remaining thermal energy pass through a heat exchanger made of steel or cast iron, due to which another part of the thermal energy is spent on heating water. The remaining heat, together with flue gases, escapes into the atmosphere through the chimney.

If you measure the flue gas temperature at the outlet of the pipe, you can evaluate the efficiency of boiler equipment. For a heater with low efficiency, the temperature of the gases at the outlet pipe reaches (or even exceeds) 200 degrees - this means that a significant part of the thermal energy is irretrievably lost, that is, a decent percentage of the fuel is wasted. Gas heating boilers can be considered quite efficient if the temperature of the flue gases at the outlet of the pipe does not exceed 150 degrees. At economical boiler this figure will be about 100 degrees.

Outgoing flue gas parameters

The lowest temperature for combustion products is for condensing gas boilers. This is achieved thanks to design features unit, where a system is provided for the selection of heat obtained during the vaporization of water. As mentioned above, water is released during the combustion of gas fuel, and then evaporates - and part of the received thermal energy is spent on this evaporation. Condensation colas differ from classical gas units in that they take this energy back by condensing water vapor.

The condensing model is equipped with a cylindrical type burner, which is mounted inside a stainless steel heat exchanger, made in the form of a coil with coils located very close to each other. The coolant circulates through the coil. The water vapor generated during chemical reaction combustion, passes through the coil, since it has no other way, and condenses on its surface. In the process of condensation, the steam gives off heat to the coil.

When determining which gas boiler is the most economical, you should pay attention to condensing boilers, since the temperature of the combustion products at the outlet of the pipe is the lowest - only 45-70 degrees, while the efficiency is 98%.

What to choose: condensing or conventional boiler?

As already mentioned, the efficiency and reliability of a condensing boiler is beyond doubt. But it should be noted that sellers of such equipment often mislead buyers by declaring that the efficiency of a condensing heat generator is more than 100%. They add to the base figure of 98% "efficiency percentages" obtained by condensing water vapor - i.e. thermal energy that the unit takes back, initially spending on converting water into steam.

A photo of a condensing boiler

Any literate person who studied physics at school knows that the efficiency of equipment cannot exceed 100%. The condensing unit is able to minimize heat loss, but cannot increase the amount of heat energy obtained by burning gas. Thus, the real efficiency of the condensing heat generator does not exceed 98%.

However, when choosing heating unit operating on gas, it is important to consider the following :

• condensing boilers are more economical than conventional ones, but are significantly more expensive due to their more complex design;
• maintenance of a traditional gas unit (flushing the heat exchanger, etc.) can be done by hand, technically there is nothing complicated in this, and certified specialists are required to clean the condensing boiler.

If you are looking for an economical gas boiler among conventional units, it is important to understand that savings when buying equipment in the future can result in increased repair and maintenance costs.

Don't Forget to Estimate Installation Costs .

For example, a floor-standing gas boiler with an open combustion chamber requires installation in a dedicated room with a fire-resistant finish. In addition, a foundation and a vertical chimney are mounted for it.

A model with a closed combustion chamber can be installed in any convenient location and lead the chimney through the wall.

Compact gas boilers are hung on the wall and take up a minimum of space - this is the most convenient option.

Please note: it makes sense to opt for a non-volatile boiler only if it is not possible to provide power to the equipment. Such models have a relatively low cost, but do not provide an opportunity to save fuel.

How to do right choice?

Compare the following indicators :

• Efficiency of the unit (indicated by the manufacturer in the product passport);
• temperature level of combustion products at the exit;
• design features of the heat exchanger (the more turns, the more heat energy the flue gases will have time to give off);
• the quality of the thermal insulation of the water jacket of the boiler (it is important that there are no unnecessary heat losses);
• type of combustion chamber;
• burner type (smooth adjustment is the ability to switch the boiler to the most economical mode of operation relative to specific conditions).

The installed heating boiler for a private house must be properly adjusted, this must be done by specialists. Practice shows that it is not worth further saving on the invitation of experienced professionals to adjust the heating unit - even the slightest deviation from optimal modes functioning of the nodes lead to the fact that the operation of the boiler becomes less efficient and more fuel is spent.

The choice you made will not disappoint you if you take into account all the recommendations. But it should be understood that an economical boiler will meet expectations only if the house is well insulated, selected best option heating system, fuel with the correct characteristics is used.

Whatever high performance at the boiler unit, it requires regular preventive cleaning - the accumulated pollution reduces the power of the boiler and provokes excessive fuel consumption.

How to choose an economical gas boiler for heating a private house