Viessmann boilers have good performance properties. The article describes correct installation and installation of boilers, which will allow you to realize their full potential and avoid troubles caused by installation errors.

Depending on the type, Viessmann boilers are installed differently. This is caused by the design features of the heating water heating unit, its size, weight, method of connection to the chimney, and type of fuel.

Installation steps for Viessmann boilers:

Installation of various types of boilers.

• Solid fuel and gas floor-mounted.

These types of units are characterized by increased mass, slightly larger width, length and height. The devices need the strongest and most solid foundation, because their weight is the largest in the entire product line of the company. The base is made of rubble stone, broken brick, crushed stone, concrete. The area of ​​the foundation is three to four times the area of ​​the boiler. Usage weak foundation leads to damage to the chimney, loss of integrity threaded connections, leaks of coolant and household gas, fires, explosions. Poisoning is no less dangerous carbon monoxide. Solid fuel type heating devices are very demanding on the quality and size of the chimney. When burning wood, the release of volatile substances is greater than when burning gas, and the soot content in the emitted smoke is tens of times higher. Therefore, the diameter of the chimney channels must be increased. Minimum size channels is indicated in the operating instructions, but in reality it needs to be made at least one and a half times larger in order to avoid overgrowing with soot as a result of using oily or damp firewood. Incorrect calculations, installation and connection of Viessmann Visman boilers increase the risk of fire and carbon monoxide poisoning tenfold.

• Gas wall mounted.

Does not require a base because it is fixed to the wall using anchor bolts. Of all fuel boilers, it has the minimum weight and maximum efficiency.
Connecting the power supply system.

• A solid fuel heating water heating unit does not require a special power system.

The only requirement is a flood sheet that protects the floor from possible escape of coals and protects against fire.

• A gas boiler requires connection to a low pressure mains gas line. Prohibited by law

make this connection yourself. This is fraught with a gas leak, explosion, fire, and is dangerous not only for the people living in the house, but also for their neighbors. Connection to the gas pipeline must be carried out by specialists with appropriate education and documents of the established standard. After connecting the power, the technician will definitely search for and eliminate household gas leaks.
Connecting the heating system.
Installation of a Visman boiler to heating pipes is identical for any type and model. The pipes are connected using threaded connections sealed with fluoroplastic (FUM). A properly assembled connection will serve without leakage for decades. The water outlets of the unit are connected to metal-plastic pipes using adapters and fittings, and does not require special equipment. If the heating is made of plastic pipes, you will need a special soldering iron. Metal pipes heating requires a welding machine, an angle grinder (grinder) and a highly qualified craftsman.
Chimney connection.
Solid fuel and gas boilers with an open chamber are connected to a chimney that extends above the roof ridge using pipes made of roofing iron. The use of galvanized steel pipes is unacceptable; when heated, zinc begins to be released into the air, leading to accumulation in the body and severe poisoning.

Installation and installation of Viessmann boilers must be carried out by specialists. This is a guarantee of safe and comfortable heating in winter period. The craftsmen will determine the best place for the unit, the optimal location and shape of the chimney, and calculate required size and the shape of the foundation, calculate ventilation and fire safety premises. Don’t risk the lives of your loved ones for illusory savings.

Manufacturer : Viessmann Werke GmbH & Co. KG,

Viessmannstraße 1 - 35108 Allendorf (Eder), Germany

Wall

gas heating boiler

VITOPEND 100- W

Type:W.H.1 D

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

· Installation location: wall mounted.

· Modulated automatic atmospheric burner.

· Open and closed combustion chamber.

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

· Full automation of all processes.

· Application: heating and hot water supply.

· Type of combustion and gas removal: natural (atmospheric) and forced (turbo).

· Rated thermal power: from 10.5 to 31 kW.

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

Table No. 1.

Wall-mounted gas water heating single-circuit boiler Viessmann VITOPEND 100-W, type WH1D
Thermal power, kW	24 .8	24	24 .8	24
Boiler type	single-circuit		double-circuit
The combustion chamber	closed	open	closed	open	closed	open
	WH1D274	WH1D277	WH1D262	WH1D2 68	WH1D2 63	WH1D2 69
	WH1D275	WH1D278	WH1D2 64	WH1D2 70	WH1D2 65	WH1D27 1
	WH1D276	WH1D279	WH1D2 66	WH1D27 2		WH1D27 3

Purpose and scope

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

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

Vitopend 100-W boilers with an open combustion chamber use natural craving to remove combustion products. Coaxial system removal of combustion products LAS boilers Vitopend 100-W with closed camera combustion ensures forced removal of combustion products. The rated thermal power of the boiler, depending on the model and operating mode, ranges from 10.5 to 31 kW.

The Vitopend 100-W boiler is intended for use in any climatic conditions and is intended exclusively for heating coolant that has the properties of drinking water. The main condition for intended use is stationary wall installation. For ease of installation, a specially designed template is provided with the designation of the main fastening points.

It is possible to combine the Viessmann Vitopend 100-W hot water boiler with additional units that are approved for operation with this boiler system. 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 for household and drinking purposes.

In some cases, applications beyond the established scope may require the approval of the manufacturer. Non-intended use is considered to be industrial or industrial use, or for purposes other than space heating or hot water preparation.

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

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

Specifications

Table No. 2.

Single-circuit and double-circuit boiler VIESSMANN VITOPEND 100-W WH1D
The combustion chamber		open		closed
Technical Parameter		Meaning
Boiler identification number
Range of rated heat output for space heating/hot water production
Efficiency at full load (100%)
Efficiency at part load (30%)
Nominal gas supply pressure
Natural gas
Natural gas with pressure sensor
Liquefied gas
Maximum permissible gas supply pressure
Natural gas
Liquefied gas
Maximum electrical power consumption*
Operating voltage
Electrical protection class
Maximum temperature boiler water
Permissible operating pressure
Diaphragm expansion tank
Inlet pressure
Vitopend boiler volume
DHW indicators**
Max. operating pressure
Long-lasting hot water performance
Water consumption (T = 30 K)
DHW temperature adjustment range
Flow parameters at maximum load
Natural gas
Liquefied gas
Energy efficiency and environmental friendliness
Energy efficiency according to 92/42 EWG
NO x emissions	__ mg _
CO emissions at full load
Flue gas characteristics at air temperature 20 °C (natural gas/liquefied gas)
Flue gas temperature at maximum power
Flue gas temperature at minimum power value
Exhaust gas flow at maximum power
Exhaust gas consumption at minimum power value
Flue gas pressure: - maximum permissible pressure
Required pressure
Residual pressure of flue gas fan
Combustion product removal system LAS
Chimney diameter
Coaxial chimney
Parallel chimney
Note. *Maximum electrical power consumption incl. circulation pump. ** DHW indicators are only for a gas combined (double-circuit) hot water boiler.

Device and description of the product

Gas low temperature hot water boiler flow type low thermal power Viessmann Vitopend 100-W, type WH1D is one of the most popular high-performance, economical wall-mounted boilers, and for the potential owner it is especially important: with an optimal balance between price and quality - cost and performance. The rated thermal power developed by Vitopend 100-W gas boilers, type WH1D, provides the most comfortable and economical heating residential buildings of various sizes and construction volumes. 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 water heating boilers Viessmann Vitopend 100 W are divided into two types: single-circuit and double-circuit. The heat exchange process in both types of boilers is basically the same and is as follows: fuel combustion products heat water (coolant) passed through a primary lamella-type heat exchanger. The main difference between the two types of Vitopend 100-W WH1D boilers is that in a double-circuit boiler, in addition to the primary heat exchanger, elements of a water heating device for DHW - a hot water supply system - are installed. That is why important element double-circuit boiler Vitopend 100-W WH1D is a plate-type flow heat exchanger of small volume, in which cold water from a cold water supply system is heated by hot coolant circulating in the system. The hot water preparation heat exchanger is installed on the chassis of the AQUA-BLOC hydraulic unit.

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

The gas hot water boiler Vitopend 100-W, type WH1D, provides high comfort of hot water supply with a continuous output of 14.3 l/min (at a power of 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 adjustment range is 30 – 57°C.

The single-circuit boiler Vitopend 100-W WH1D is naturally not equipped with a heat exchanger for preparing hot water for the domestic hot water system, but it is possible to equip a boiler of this type with an autonomous cylinder water heater from Viessmann, for example Vitocell 100. In this case, the degree of water heating is measured by a temperature sensor DHW cylinder, which is connected to the electrical circuit of the boiler (Fig. 16).

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

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

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

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

· ​ modulated atmospheric burner for operation on natural and liquefied gas;

· ​ efficiency: 83% (Hs) / 92% (Hi);

· ​ Boiler productivity 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 according to 92/42 EWG “Three stars”;

· ​ availability of a diagnostic system for boiler operating modes, with information about emergency mode;

· ​ presence 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 ignition reliability;

· ​ built-in gas pressure control relay for automatic switching on after a gas supply failure;

· ​ silent start of the boiler thanks to the periodic ignition system;

· ​ the low weight of the boiler facilitates transportation;

· ​ compact design makes it easy to install the boiler unit;

· ​supplied ready-to-use;

· ​high operational reliability and long service life;

· Possibility of combination with capacitive storage devices.

By design, the Viessmann Vitopend 100-W gas boiler is a rectangular body, inside of 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 against heat outer surface boiler installation.

The Viessmann Vitopend 100-W single/double-circuit gas boiler with low thermal power uses a modulated atmospheric burner. With smooth modulation control, the burner changes its power within a given range, maintaining the controlled parameter - the temperature of the supply line at a given level. Therefore, a necessary element of the control system is a temperature sensor and an electronic controller. Modulating atmospheric burner gas boiler The Viessmann Vitopend 100-W is pre-configured for operation with natural gas type “E”. A set of replacement jets, which is not included in the delivery package, allows you to convert the boiler burner to operate on liquefied gas. The built-in gas pressure control relay automatically puts the boiler into operation after a gas supply failure.

Removal of combustion products from Viessmann Vitopend 100-W gas boilers with a closed combustion chamber is carried out using a separately located fan. 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.

Boiler water is heated in a primary flow-through lamella-type heat exchanger (Fig. 2). At the same time, in boilers of different thermal power, the number of lamellas 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 - 82 lamellas. The total volume of the primary heat exchanger is 1.2 liters of boiler water (Table 2)

Because the heating installation– water-heating wall-mounted single-circuit gas boiler Viessmann Vitopend 100-W, Type WH1D is delivered in a state of operational readiness, but at the factory the boiler automation is pre-configured for operation in standard mode. In this case, the boiler water temperature setting of the Viessmann Vitopend 100-W low thermal power heat generator does not exceed 76 °C. The initial factory setting can be changed at the user's discretion to create a more comfortable conditions accommodation. By resetting the thermostat regulator 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 hot water preparation system and heat distribution device should be set to a supply temperature of no higher than 70 °C. During operation of the gas boiler, the boiler water temperature is constantly displayed on the display located on the control panel.

Rice. 3. Controls and displays	Fig.4. Display indication
1 – pressure gauge; 2 – display; 3 – “Hot water temperature” regulator; 4 – regulator “Coolant temperature”; 5 – on/off button with RESET function.	A – heating; B – hot water preparation; C – digital display or fault code; D – temperature, °C; E – service setting is active (for specialists only); F – current burner power; G – burner is working; H – malfunction.

In the Viessmann Vitopend 100-W boiler, type WH1D has built-in automation that allows you to control the boiler in operating mode with a constant supply temperature. Operating modes are carried out using a built-in controller and are set by 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 coolant temperature control. At the same time, easy-to-use regulators allow you to quickly set the supply temperature of the heating line and hot water supply.

When the Viessmann Vitopend 100-W boiler is operating, type WH1D without using a control device remote control(thermostat), the desired room temperature is set with the “Coolant temperature” knob. To maintain the desired temperature in the premises of the house, connect the Vitopend 100-W boiler to type WH1D you can connect four types of remote control room thermostats (regulating devices):

– 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 frost protection function and a diagnostic system, which, using a digital indication on the display, informs about the operating and service mode of the boiler, as well as the occurrence of an emergency mode (Table 3).

Table No. 3.

Fault indication on display
malfunctions	Installation Behavior	Cause malfunctions	Accepted measures
A0	Burner blocked	Gas pressure too low	Check gas pressure and gas pressure control switch
E0	Burner blocked	The traction control device has activated	Check the flue. Note. If the draft stall control device operates 10 times within 24 hours, the burner goes into fault mode (fault indication "F6").
F2	Burner fault	Temperature limiter tripped	Check the filling level of the heating system. Check the circulation pump. Remove air from the installation. Check temperature limiter and connecting cables. To unlock, turn the knob“Coolant temperature” almost all the way to the right and then back (reset).
F3	Burner fault	The flame signal is already present when the burner is started	Check the ionization electrode and connecting cables.
F4	Burner fault	No flame signal	Check the ignition electrodes/ionization electrode and connecting cables, check gas pressure, check gas control valves, ignition, ignition transformer. Turn the mains switch off and on again or perform a reset, see F2.
F6	Burner fault	The traction control device has activated	Check the traction tipping sensor. Turn the mains switch off and on again or perform a reset, see F2.
F30	Burner blocked	Short circuit of boiler temperature sensor
F38	Burner blocked	Broken boiler temperature sensor	Check the boiler water temperature sensor.
F50		Short circuit of the cylinder temperature sensor (gas single-circuit boiler)	Check sensor
F51	No hot water preparation	Short circuit of hot water outlet temperature sensor (gas combi boiler)	Check the sensor.
F58	No hot water preparation	Break in the cylinder temperature sensor (gas single-circuit boiler)	Check the sensor.
F59	No hot water preparation	Break in hot water outlet temperature sensor (gas combi boiler)	Check the sensor.
b0	Burner blocked	Short circuit of the traction control sensor	Check the sensor.
b8	Burner blocked	Broken traction control sensor	Check the sensor.

The AQUA-BLOC hydraulic unit with a 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-release connection. This makes it quite easy to produce 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 No. 4.

Parameter	Unit change	Pump type
		UP 15-60	UP 15-50
Nominal thermal power of the boiler
Hydraulic characteristics (Fig. 6)
Voltage
Circulation pump power
Installation input parameters: · Water temperature:< 85 °C. · Minimum pressure: 0.8 bar.

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 aluminum. The circulation pump motor shaft is made of hardened stainless steel and is mounted on bearings, which are lubricated by the pumped liquid. The impeller of the circulation pump is made of durable technopolymer.

An important element of the combined (double-circuit) boiler Viessmann Vitopend 100-W WH1D is a small-volume plate-type heat exchanger, in which cold water from the cold water supply system is heated by the hot coolant circulating in the system. Moreover, the number of plates varies between boilers of different productivity and heat exchanger volume. So in boilers with a thermal power of 30/31 kW the number of plates is 14, and in boilers with a thermal power of 24/24.8 kW there are 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 power of 24/24.8 kW is 6 liters, and for boilers with a power of 30/31 kW - 10 liters (Table 2).

Nomenclature and overall dimensions

Boiler capacity 24/24.8 kW	Boiler capacity 30/31 kW
Fig. 10. Overall and installation dimensions of the Viessmann gas boiler Vitopend 100-W, type WH1D
A – place for electrical cables. B – required height taking into account the stand-on cylinder water heater. C – width (depth) of the boiler. D – reinforcement cover.

Table No. 4.
dimensions wall-mounted gas boiler Viessmann Vitopend 100-W, type WH1D
	Parameter		Boiler thermal power
	Height with reinforcement cover
	Height including stand-alone DHW cylinder
	Weight of single/double-circuit boiler
Connecting pipes of the hot water boiler:
	Supply line
	Return line
	Gas connection

Installation instructions

Wall-mounted gas boilers Vitopend 100-W were specially designed to allow quick installation and reduce maintenance time. The installation of the wall-mounted water heating boiler Viessmann Vitopend 100-W, type WH1D should be entrusted to a specialized service organization. In this case, work on gas equipment may only be carried out by installation specialists who have permission to do so from the responsible gas supply company.

The room for installing the Viessmann Vitopend 100-W floor-standing single-circuit gas boiler must have normal humidity and meet the requirements of the relevant building regulations and standards, 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.

To ensure proper boiler operation, frost protection and proper ventilation must be provided. So, for example, for the boiler burner to operate, the required volume of air must be taken from the room, which requires the installation of a special air duct extending beyond the outer wall into the atmosphere. To prevent drafts in the burner area, the air supply duct should not end directly behind the boiler. With a rated thermal power of a gas boiler up to 35 kW, the cross-section of the air duct must be at least 150 cm².

The air in the room for installing the Viessmann Vitopend 100-W floor-standing single-circuit gas boiler must not be polluted with halogen-containing hydrocarbons, which, for example, are found in aerosols, paints, solvents and detergents. In the event of air pollution due to halogenated hydrocarbons, the hot water boiler may only be installed if sufficient measures have been taken to supply uncontaminated combustion air. In addition, heavy dust and high air humidity are not allowed in the room.

To avoid damage and deformation of the connecting pipes of the Vitopend 100-W boiler, the use of improper installation tools and 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, stretching, vibration, distortions, uneven tightening of fasteners).

Fig. 11. Mounting kit, straight	Fig. 12. Installation kit under the boiler
1 – Mounting bar. 2 – Mounting connection kit, straight. 3 – Reinforcement cover.

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

To connect a heated floor system to the Vitopend 100-W boiler, a kit with a thermostatic mixer is offered, which limits the maximum supply temperature to the heated floor system and guarantees operation of the boiler without condensation (Fig. 12). The set 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 installing a water heater under the boiler, as well as a set of connections for installing a water heater installed next to the boiler.

Preliminary marking using an installation template.	Boiler installation.
Connecting electrical connections.	Commissioning.
Fig. 14. Installation and commissioning of the boiler

Electrical connection diagram for the gas boiler Viessmann Vitopend 100-W, type WH1D
CN 8– stepper motor of the switching valve; T8– transformer high voltage both line and ionization line; 3 – boiler water temperature sensor; 4 – outlet temperature sensor (combi boiler only); 5 – cylinder temperature sensor (single-circuit boiler only);	20 – internal circulation pump; 35 – electromagnetic gas shut-off valve; 47 – temperature limiter; 149 – DHW relay (sensor); 100/159 – blocking of exhaust devices using an external expansion module H3; 162 – traction rollover control sensor; 190 – modulating coil.

Since the Viessmann Vitopend 100-W WH1D gas boiler is supplied ready for immediate operation, the main electrical installation connections are made inside the boiler at the factory. The connection of auxiliary equipment, such as the Vitotrol 100 room thermostat or the Vitocell 100-W DHW cylinder, is carried out to the boiler controller connectors; therefore, this work, as well as the connection to the network, should be entrusted to a specialized service organization. For example, the connection of the “L” and “N” wires of the mains cable must be observed, as incorrect connections can result in serious injury and damage to the appliance. In addition, direct contact of connecting cables with hot parts is not allowed, as this leads to damage to 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 a neutral wire, and the power supply cable must have a disconnector that simultaneously disconnects all ungrounded wires from the network with a contact opening of at least 3 mm.

When installing the unit in wet rooms, it is prohibited to connect auxiliary additional equipment to the boiler on the controller in an area of ​​high humidity. When installing a hot water boiler outside wet rooms, connecting additional accessories to the network can be done directly on the controller. This connection is controlled directly by the controller's mains switch.

The manufacturer recommends installing a gas boiler in the passage area chimney through the building structure. The flue gas pipe must be connected to the chimney using the shortest route via a chimney. In this case, sharp bends in the gas exhaust pipes should be avoided. When installing a chimney, it is necessary to check that the cross-section of the chimney and flue pipes corresponds to the cross-section of the boiler pipe. A distance of at least 100 mm must be provided from the chimney to flammable structural elements. If necessary, the chimney pipe should be thermally insulated.

The well-deserved trust of customers in the Viessmann company and, accordingly, the high demand for its products that comply with European UNI-EN standards were also noted by manufacturers of counterfeit goods. On Russian market Cheap counterfeits of Viessmann products have infiltrated, which are distinguished by their low price and equally low quality.

The use of such “branded” products is fraught with the occurrence of emergency force majeure circumstances associated with the use gas equipment. The money spent to eliminate these circumstances cannot be compared with the cost of true Viessmann branded products.

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

Group of companies "RANDSTROY"

is official distributor products from VIESSMANN

in Russia and CIS countries

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Gas wall-mounted boilers Viessmann series Vitopend 222-W type WHSA. Installation sequence instructions. Language: RU | pdf 736.83 Kb

The German company Wissmann has been one of the world leaders in the market for several decades. heating equipment. The company gained its fame primarily due to its solid fuel and gas floor-standing boilers. And in this segment, perhaps, they have no equal at all.

In recent years, the German concern has increasingly relied on compact and economical wall-mounted gas boilers Viessmann. Reviews for this type equipment is not as common as, for example, popular boilers of the brands or.

This is understandable, because the equipment from the German manufacturer has never been budget-friendly, and the price of wall-mounted single-circuit and double-circuit gas boilers Wisman did not allow them to be purchased and made available to the average buyer.

Today we’ll talk in more detail and review wall hangings. gas apparatus the widespread Viessmann Vitopend 100-W WH1d series. Thanks to the operating instructions, we will together determine their significant advantages and disadvantages compared to competitors, consider the main types and specifications German boilers of this brand.

Main types and models of wall-mounted gas boilers Visman

Today, the German concern produces two main types of wall-mounted devices:

1. Traditional boiler models Viessmann Vitopend 100-W;
2. Condensing boilers Viessmann Vitodens 100(-200)-W.

Gas boiler Viessmann Vitopend 100-W

To countries Western Europe German company supplies condensing gas boilers models Viessmann Vitodens. In Russia this type equipment is not so popular due to its high price of 100 thousand rubles and above. These devices have very good indicator Efficiency (more than 100%), and the country of origin is Germany.

For Russia and the CIS countries, this company has developed a more budget-friendly series of wall-mounted gas boilers Viessmann Vitopend 100-W. These models are characterized by a standard (for wall-mounted units) efficiency indicator of about 90%, and the price for a boiler is more realistic for the consumer - from 700 euros, which is already noticeably lower than, for example, for the same “”.

Boilers of the Viessmann Vitopend 100-W series are assembled in Turkey and in some countries of Eastern Europe, they are available in several versions:

— double-circuit with thermal power of 22, 24 and 30 kW;
- single-circuit with a power of 24 and 30 kW.

Depending on the type of combustion product emissions, gas boilers are divided into devices:

- with a closed combustion chamber or “turbo boilers”, with separate (80/80 mm) and, i.e. “pipe-in-pipe” type (60/100 mm);
- with an open chamber or “atmospheric” boilers, with a chimney pipe diameter of 130-140 mm.

Design and features of gas boilers Viessmann Vitopend 100-W

In Russia, turbocharged double-circuit gas boilers have gained the most popularity, let's take a closer look at them in the photo below.

1. Turbine
2. Primary copper heat exchanger
3. Combustion chamber
4. Gas burner with flame modulation
5. AquaBloc hydraulic unit with Multi-Stecksystem quick-release connections
6. Boiler control unit
7. Expansion tank

Boilers of this model have two heat exchangers: a copper primary, and a compact secondary made of stainless steel for heating running water.

The three-speed circulation pump "Wilo" with an automatic air vent was replaced with a higher quality analogue - a pump from a German manufacturer " Grundfos", capable of raising a column of water up to 6 meters. The membrane expansion tank for models with a nominal power of up to 24 kW has a volume of 6 liters, and for 30 kW - 10 liters.

Thanks to a special hydraulic module AquaBloc with quick connectors Multi-Stacksystem, it has become very convenient to diagnose and repair the main elements of a gas boiler. This is especially true if you need to quickly replace any spare parts when outside the window subzero temperature air.

The entire hydraulic part of the boiler of this brand is made of high-quality composite materials. Both heat exchangers, gas and three-way valves, flow and temperature, flame and draft sensors are made in Europe.

Vitopend boilers automatically maintain the temperature of hot water and coolant, thanks to an automatic modulating burner. The device also has a self-diagnosis system and boiler protection against freezing and overheating, as well as a safety group.

Operation control and functions of the Visman gas boiler

On front side In the body of the apparatus there is a control unit, with the help of which the temperature is adjusted and the operating modes of the Vitopend model boiler are set. In addition, the digital LCD display shows error codes if a malfunction occurs during the operation of this gas heating equipment, as well as boiler operation control indirect heating, if necessary.

Visman boiler control unit

1 - pressure gauge
2 - LCD display
3 — flow water temperature controller in the DHW circuit
4 - coolant temperature regulator in the heating circuit
5 - boiler on/off button

Single-circuit and double-circuit gas boilers Viessmann Vitopend 100-W have built-in weather-dependent automation. If you buy an additional sensor outside temperature, then the boiler will work, taking into account the weather and air temperature outside the window, on the street.

In addition, to maintain the required air temperature in the house, it is possible to install a room thermostat for the Visman boiler. The company produces several types of these control devices under the name “Vitotrol”:

— mechanical thermostat type “RT”
— programmable type “UTA”
— with digital display “UTDB”
— with a built-in receiver and remote radio transmitter “UTDB-RF”

Kit for connecting underfloor heating to a Viessmann gas boiler

To connect the system heated floors the company has developed a special kit.

It consists of the following elements:

- circulation pump;

— thermostatic mixing valve;

— thermal heads with a remote sensor;

— supply copper fittings.

This set automatically supports temperature regime, necessary for heated floors and prevents the formation of condensation in the boiler.

Having purchased such an installation kit for a Wiesmann boiler, you no longer have to purchase an expensive manifold group with a pumping and mixing unit for heated floors.

Technical characteristics of double-circuit gas boilers Viessmann Vitopend 100-W

Double-circuit (combined) boilers of the Visman brand have a hot water capacity of 10 to 14 l/min, depending on the power of the specific model. Electricity consumption is low: up to 120 W from a 220 V power supply. To avoid damage to the boiler’s electronic board, experts strongly recommend purchasing.

Capable of operating on natural and liquefied gas (when replacing injectors gas burner) at low consumption. More detailed technical parameters are given in the table.

Gas boiler Visman: technical characteristics

Advantages of wall-mounted gas boilers Viessmann Vitopend 100-W

— quality of materials;
— noiselessness;
— compact dimensions;
— modern German technologies;
- a prestigious brand.

Disadvantages of Visman gas boilers

— high price for boilers;
— high prices for spare parts and components;
— hydraulic tubes made of composite material;
- narrow range of models.

Today we together disassembled wall-mounted double-circuit gas boilers Visman and wrote your review about this device. In accordance with the operating instructions, we examined the technical characteristics and design of the Viessmann Vitopend 100-W WH1d series boilers.

Despite some shortcomings and high prices for gas boilers, this is a very high-quality and reliable heating device from a German manufacturer. It may be worth spending once on a brand and buying good, prestigious heating equipment to avoid problems with your boiler in the future. Let's watch the video.

To ensure normal heating of a house or other building, it is important that the connection of the boiler to the heating system is carried out at a high level, taking into account all existing requirements and standards.

Every year, gas heating systems are becoming increasingly widespread among domestic consumers. There are a huge number of reasons for the growth of such popularity, and the cost of the fuel itself is not the main one.

For example, they promote the spread of gas heating (including liquefied gas systems):

• Ease of use;
• no additional operating costs;
• minimal intervention in the structure of the building;
• ease of adjustment and heating efficiency.

Connecting a gas boiler: features of the stages

If we talk about such a process as connecting a gas boiler to the heating system, then it is one of the most complex and labor-intensive, requiring certain training and construction skills.

It should be noted that the design of boilers greatly complicates the installation of heating equipment - modern units will not forgive rough treatment during the installation process and will require careful study of the instructions and leaflets developed by the manufacturer.

However, it is quite possible to carry out installation and connection to the system yourself, and such work will cost much less, and you can save time.

And connecting them yourself – a process that can be divided into four main stages:

• installation of the unit (including wall mounting, if we're talking about about a wall-mounted boiler);
• connecting the heating circuit;
• heating system connection;
• connection to the gas pipeline.

Each stage has its own unique nuances, compliance with which is the basis for the safe and efficient operation of heating equipment.

Installation of heating equipment: nuances of the process

As a rule, the process during which gas heating boilers are installed should not cause difficulties. In case of floor equipment It will be enough to install the equipment in full accordance with the instructions carefully prepared by the manufacturer.

At the same time, if a wall-mounted heating boiler is mounted in the house, then it is necessary to hang it on a special bracket, which is included in the kit.

Selecting the location for installing the boiler is a completely different matter - it must be chosen not only based on ease of use, but also in compliance with certain specific standards and requirements. This is the only way to guarantee the highest level of operating efficiency of the heating device, as well as its safety.

When choosing a place to install a heating gas boiler, you need to be guided by two basic rules:

• The room where the boiler is installed must be equipped with a window that opens. If there is none, then at least a small window should be available.
• In close proximity to heating unit there should not be any devices, not even a gas meter.

Installing a wall-mounted one is not a problem - all you need is a few self-tapping screws with a diameter of at least 6 millimeters (so that the fasteners do not get cut off during operation).

• Installation is preceded by careful alignment of all parts and surface preparation.
• It should be noted that when choosing an installation location, it is also necessary to take into account that a wall-mounted heating boiler operating on gas must be located at a height of at least 80 cm from the floor and 50 cm from the nearest walls.
• Such distances are defined in standards and requirements and are necessary to ensure efficient and safe operation of boilers.

Tip: It is best to install a wall-mounted gas boiler together. Thus, it will be possible not only to simplify the installation process, but also to guarantee that everything will be done correctly, without distortions and other defects.

• Connecting a wall-mounted gas boiler to a heating system is impossible to imagine without chimney equipment and a room ventilation system.

• In addition, it is very important to organize effective air inflow and outflow - this will ensure the outflow of gas and flue gases, thereby reducing the level of danger.
• If it is not possible to equip a separate forced ventilation boiler, then you can simply purchase heating equipment with a turbine. Such boilers are not uncommon today and their feature is the forced removal of combustion products through a “pipe-in-pipe” chimney. The exhaust is carried out through the internal pipe, while the external one is responsible for the air flow.
• Lack of a large number of pipes and ventilation holes allows you to significantly simplify the equipment installation process, as well as eliminate various problems.

Connecting the heating circuit to the boiler

Most modern gas heating boilers have an identical arrangement of pipes designed to connect the heating circuit, as well as the gas pipeline and water supply.

If you look at the bottom of the boiler (or at its photo in the instructions), you can see there a pipe for connecting gas (usually located in the center), to the right and left of it there are tubes for hot and cold water supply.

Closer to the ends of the boiler there are pipes to which the elements of the heating system are connected. Moreover, on the right is the return, and on the left is the supply of hot water to the heating radiators.

The return and hot water supply must be connected carefully and in compliance with all standards and requirements. It is imperative to use special sealants - materials that can effectively isolate the system and prevent water leaks during the first start-up.

For water, there are several basic types of sealants that can be used, including the more traditional tow or paint, as well as a modern thread sealant. The materials of this group are quite inexpensive, but at the same time, they are extremely effective and efficient, allowing you to get a sealed system that works without problems or failures.

It should be noted that the instructions for connecting a gas boiler also imply the exclusion of debris from entering the boiler.

It's no secret that the water itself, which constantly circulates in heating system, not too clean and if these contaminants get into the boiler, then problems may arise, even complete failure of the device.

You can eliminate such a nuisance; to do this, you just need to install it on the pipe return water pipe coarse filter. In fact, this is a mandatory step that allows you to significantly extend the trouble-free operation of the boiler and increase productivity.

Connecting the heating circuit to the boiler will be incomplete if you do not take care of the shut-off valves. Installation of such water fittings is necessary on the supply and return water pipes.

Such devices will help in the event of equipment failure to facilitate the repair process, eliminate the airing of radiators and the occurrence of unnecessary problems.

If you save money and do not install taps, then air and water residues in the pipes that arise when troubleshooting a fault in the pipeline can lead to poor heating of the premises, accelerated wear of the batteries and, as a result, unnecessary financial expenses.

Connecting a gas boiler to the water supply system

Today, the connection diagram for a gas heating boiler necessarily involves connection to a water supply circuit. The work at this stage is almost the same as connecting the heating system - the only difference is in the diameter of the pipes and the taps used.

• It should be noted that the cold water supply must be equipped with a special cleaning filter, which will prevent all kinds of contaminants from entering the boiler. If you do not install such equipment, then the unit may fail - there are more than enough such videos on the Internet.

• Taps used to cut off water supply circuits must have detachable connections - the so-called “American ones”. This is done in order to simplify the installation process, and also in case of unforeseen situations to ensure a quick replacement of a worn-out tap.
• Similarly with the heating circuit, the cold water supply pipes are located on the heating equipment on the left side (relative to the center), and hot water on the right.

Gas pipeline: boiler connection

The first thing I would like to note is that the cost of an error when connecting a gas pipeline to a heating boiler is very high. Poor execution installation work and neglect of safety precautions and the requirements of norms and rules can cause emergency situations, even an explosion.

That is why, when performing work on connecting the gas pipeline to the boiler, you should be extremely careful, and upon completion, carefully check all connections, paying attention to even the smallest points.

• So, when starting work on connecting the gas pipeline to the heating boiler, you must first connect the pipe available on the equipment to the branch of the gas pipe with the tap installed on it.

• Taking into account the presence of thin and fragile elements on heating equipment, connecting a wall-mounted gas boiler to the heating system must be combined with protection against the ingress of small debris. To do this, a special filter is installed on the tap that cuts off the gas supply from the main line.

Advice: When choosing a filter for a gas pipeline, you should not save money - this can lead to rapid wear of the element and, as a result, failure of the boiler.

• Particular attention must be paid to sealing the gas pipeline and its connections to the boiler. This important stage work, because gas is much lighter than air and can leak out of the pipeline if the threaded connections are not tight enough.

There is no need to say what neglect of such issues can lead to - the consequences are the most dire. The main materials for sealing threaded connections are tow and paint - the use of sealing thread and FUM tape is excluded, since they do not guarantee complete insulation.

• The next step towards realizing the idea of ​​connecting a gas heating boiler is the installation of a special flexible connection after the filtration element.

At the same time, it is prohibited to use rubber hoses, because over time the rubber loses its characteristics, dries out and cracks, which leads to gas leakage and the creation of an emergency situation.

• To ensure the most optimal operating parameters of the system, it is best to use flexible corrugated hoses made of inexpensive, but durable and high-quality stainless steel.

The choice of this particular material is justified by its unique qualities, in particular, durability and resistance to negative impact gas and high humidity.

• As for connecting the hoses directly to the boiler nozzle, this process is carried out simply and without much difficulty. Easy enough to install union nuts and sealing gaskets made of paranit.
• It cannot be said that the use of gaskets is mandatory, as it allows you to seal the system and eliminate the occurrence of various unpleasant situations, including gas leaks.

Finishing work on installing and connecting a gas boiler: what next?

The connection to the gas boiler heating system is almost complete, all systems are connected and normal. But you shouldn’t rush to put the boiler into operation right away - rushing in this situation is unacceptable, since not only the normal functionality of the system, but also the safety of people’s residence depends on the quality of the heating equipment.

That is why, first, you need to carefully check and make sure that all work is done correctly and taking into account existing requirements. Water should not leak anywhere, and gas should not leak - all this leads to negative consequences.

If the water is immediately visible - it simply oozes from loose connections - then the gas line will need to be wetted with a soapy solution and watch for the appearance of air bubbles.

As a rule, if all stages of connecting a gas boiler to the heating system of a house are completed correctly, then no problems should arise at all - this is a fact that has been verified by many consumers.

IMPORTANT! If at least some minor deviations from the norm and requirements for the installation process of a gas heating boiler are found, they should be eliminated immediately. Otherwise, the operation of the equipment will not only be ineffective, but also dangerous.

It is better to carry out the first start-up of a gas boiler together with gas specialists. Of course, you can do without the help of specialists, but in this case it will be impossible to obtain permission from specialized authorities.

In addition, gas specialists, having examined the entire heating system in which a gas boiler is used, will be able to indicate to the home owner exactly what was done incorrectly and explain exactly what this could lead to in the future.

Consulting qualified specialists in matters of gas heating is a necessary measure, because this in itself is dangerous equipment, neglect of which can lead to FATAL consequences.