Gas wall-mounted boilers Vitopend 100-W, type WH1D. Technical certificate. Language: ru | pdf 945.84 Kb
Gas wall-mounted boilers Vitopend 100-W, type WH1D. User manual. 2009 | Language: ru | pdf 402.87 Kb
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Viessmann gas wall-mounted boilers of the Vitopend 100 series type WH1B for natural and liquefied gas. Installation and service instructions. Language: RU | pdf 4.69 Mb
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Viessmann gas wall-mounted boilers of the Vitopend 100-W series type WH1D (10.7 - 24.8 kW, 13.2 - 31 kW) with an open and closed combustion chamber (from September 2013) 5793097. Installation and service instructions. Language: RU | pdf 6.23 Mb
Viessmann gas wall-mounted boilers of the Vitopend 100 series type WHOA (10.5 - 24 kW). Technical certificate. Language: RU | pdf 2.73 Mb
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The popularity of gas heating is growing every year more and more. One of the reasons for this growth is the cost of fuel, which serves as its basis. In addition, there are other advantages - it is simplicity and ease of use, there are no additional costs for the maintenance and use of such equipment, greater efficiency in work, productive heating. Read what are and what are their advantages.
Viessmann boiler connection
Installation and connection of a gas boiler is carried out in several stages. But before starting installation work, it is necessary to complete all work related to the electrical connection.
Nevertheless, the first launch should be carried out together with specialists who will once again check the entire system and give an opinion. Without the help of gas workers, it will be impossible to obtain permission from special authorities to use such equipment.
Even in case of the slightest deviations from the norms, it is impossible to turn on the boiler!
Experts, having examined the equipment, will give advice and help to correctly adjust everything. This device is dangerous in itself and misuse can result in death.
Maintenance of Viessmann boilers
In order to avoid a major overhaul of the boiler and its complete replacement, it is necessary to follow the rules for operating gas equipment. Even with the slightest and minor violations, you cannot try to fix anything on your own. Such actions can lead to additional violations and breakdowns and will only further worsen the technical condition of the gas boiler. In any case, it is necessary to contact the gas specialists.
The best option is to conclude a contract for regular maintenance of the boiler.
Repair of Viessmann boilers
No matter how reliable Viessmann equipment is, sooner or later breakdowns still occur, parts fail, spare parts wear out. Repair is inevitable. In order to be able to make repairs in a timely manner and as soon as possible, it is necessary to take into account the possibility of free access at the planning stage.
There must be free space around the device to be able to observe the operation of the unit visually. And in the event of a breakdown, quickly and without financial losses to carry out repairs. Also, this approach will avoid the dismantling of the boiler and the inevitable costs in this case.
Spare parts for Viessmann boilers
The German company "Vissmann" has been one of the world leaders in the heating equipment market for several decades. The company gained its fame, first of all, thanks to its solid fuel and gas floor boilers. And in this segment, perhaps, they have no equal at all.
In recent years, the German concern has been increasingly relying on compact and economical wall Viessmann gas boilers. Reviews for this type of equipment are not as common as, for example, for popular boilers of brands or.
This is understandable, because the equipment from the German manufacturer has never been budgetary, and the price of wall-mounted single-circuit and double-circuit gas boilers Wiesman did not allow buying and making them affordable for the average buyer.
Today we’ll talk in more detail and review the wall-mounted gas appliances of the widespread Viessmann Vitopend 100-W WH1d series. Thanks to the instruction manual, together we will determine their significant advantages and disadvantages compared to competitors, consider the main types and technical characteristics of German boilers of this brand.
The main types and models of wall-mounted gas boilers Wisman
To date, the German concern produces two main types of wall-mounted devices:
1. Traditional model boilers Viessmann Vitopend 100-W;
2. Condensing boilers Viessmann Vitodens 100(-200)-W.
Gas boiler Viessmann Vitopend 100-W
In Western Europe, the German company supplies condensing gas boilers of the model Viessmann Vitodens. In Russia, this type of equipment is not so popular due to its high price of 100 thousand rubles and more. These devices have a very good efficiency index (more than 100%), and the manufacturing country is Germany.
For Russia and the CIS countries, this company has developed a more budgetary series of wall-mounted gas boilers Viessmann Vitopend 100-W. These models are characterized by a standard (for wall-mounted appliances) efficiency of about 90%, and the price of a boiler, which is already more realistic for the consumer, is 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 a thermal power of 22, 24 and 30 kW;
- single-circuit with a power of 24 and 30 kW.
Depending on the type of emission of combustion products, gas boilers are divided into devices:
- with a closed combustion chamber or "turbo boilers", with separate (80/80 mm) and, i.e. according to the "pipe in pipe" type (60/100 mm);
- with an open chamber or "atmospheric" boilers, with a chimney pipe diameter of 130-140 mm.
The device and features of gas boilers Viessmann Vitopend 100-W
In Russia, turbocharged double-circuit gas boilers have gained the greatest popularity, let's look at them in more detail in the photo below.
1. Turbine
2. Primary copper heat exchanger
3. Combustion chamber
4. Gas burner with flame modulation
5. Hydro unit "AquaBloc" with quick couplings "Multi-Stecksystem"
6. Boiler control unit
7. Expansion tank
The boilers of this model have two heat exchangers: a copper primary one, and a compact secondary one made of stainless steel for heating running water.
The three-speed circulation pump "Wilo" with an automatic air vent has been replaced with a better analogue - a pump from a German manufacturer " Grundfos"capable of lifting 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 30 kW - 10 liters.
Thanks to a special hydraulic module AquaBloc with quick connectors Multi-stack system, 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 the outside temperature is below zero.
The entire hydraulic part of the boiler of this brand is made of high-quality composite materials. Both heat exchangers, gas and three-way valve, flow and temperature, flame and draft sensors are of European production.
Vitopend boilers automatically maintain the temperature of hot water and heat carrier, thanks to an automatic modulating burner. The device also has a system for self-diagnosis and protection of the boiler from freezing and overheating, as well as a security group.
Operation control and functions of the Wisman gas boiler
On the front side of the body of the device there is a control unit, with the help of which the temperature is adjusted and the operating modes of the boiler of the Vitopend model are set. In addition, the digital LCD displays error codes when a malfunction occurs during the operation of this gas heating equipment, as well as controlling the operation of the indirect heating boiler, if necessary.
Wiesmann boiler control unit
1 - pressure gauge
2 - LCD display
3 - temperature controller for running water in the DHW circuit
4 - temperature controller of the coolant in the heating circuit
5 - button on / off the boiler
Single-circuit and double-circuit gas boilers Viessmann Vitopend 100-W have built-in weather-dependent automation. If you additionally buy a street temperature sensor, the boiler will work, taking into account the weather and the 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 Wisman 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 built-in receiver and remote radio transmitter "UTDB-RF"
Set for connecting a warm floor to a Viessmann gas boiler
To connect the underfloor heating system, the company has developed a special kit.
It consists of the following elements:
- pump for circulation;
- thermostatic mixing valve;
- thermal heads with a remote sensor;
- supply copper fittings.
This set automatically maintains the temperature required for underfloor heating and prevents the formation of condensate in the boiler.
Having bought such an installation kit for the Wiesmann boiler, you can no longer purchase an expensive collector group with a pump and mixing unit for underfloor heating.
Technical characteristics of double-circuit gas boilers Viessmann Vitopend 100-W
Double-circuit (combined) boilers of the Wiesman brand have a hot water capacity of 10 to 14 l / min., Depending on the power of a particular model. Electricity consumption is small: up to 120 W from a 220 V power supply. To avoid damage to the boiler's electronic board, experts strongly recommend buying.
Able to work on natural and liquefied gas (when replacing gas burner nozzles) at a low consumption. More detailed technical parameters are given in the table.
Wismann gas boiler: technical specifications
Advantages of wall-mounted gas boilers Viessmann Vitopend 100-W
- quality of materials;
- noiselessness;
— compact dimensions;
— modern German technologies;
is a prestigious brand.
Disadvantages of Wisman gas boilers
- high price of boilers;
- high prices for spare parts and components;
— hydraulic tubes made of composite material;
- a narrow range.
Today together we dismantled the double-circuit wall Wismann gas boilers and made a review about this device. In accordance with the operating instructions, we examined the technical characteristics and design of the boilers of the Viessmann Vitopend 100-W WH1d series.
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 money on a brand once and buying good, prestigious heating equipment in order to avoid problems with your boiler in the future. Let's watch the video.
Double-circuit gas boiler Viessmann Vitopend 100-W
The double-circuit gas boiler Vitopend 100-W of the German company Viessmann is an excellent solution for organizing heating and supplying hot water to both small premises (small apartments, small offices) and individual houses up to 300 square meters. Due to the fact that the boiler is mounted on the wall, the usable area is saved (especially in small apartments), and the simple and attractive appearance will allow it to fit into any interior.
The advantages of this boiler include compact dimensions - I am still surprised by the fact that a unit with such small dimensions is able to heat the room with high quality and uninterruptedly provide hot water. Another plus is the control system - simple and intuitive, requiring no special skills from the user. In addition, the boiler is equipped with a self-diagnosis system, which greatly simplifies its operation and control over its correct operation.
Viessmann specially coordinates the technical characteristics of its gas boilers, which are intended for operation in Russia, with the peculiarities of the local gas supply.
Naturally, there are also disadvantages - high sensitivity to voltage drops in the mains and some operating features, which we will discuss below.
General view and technical characteristics
Double-circuit gas boilers Viessmann Vitopend 100-W are of two types: chimney and turbocharged. The first ones will be connected to a stationary chimney, made for the installation of boilers of this type (it provides natural draft and removal of combustion products). Turbocharged boilers are installed in rooms where there are no special exhaust systems for exhaust gases: combustion products are removed using a special fan outside the room, which makes it possible to install such a boiler in almost any apartment. We will consider the chimney model.
In addition to the boiler, the delivery set includes a mounting frame and a pipeline for exhaust gases. The installation of the boiler and the installation of the chimney system are carried out by qualified craftsmen, so in this matter you will have to rely only on their level of professionalism.
The first start-up of the boiler and its adjustment is carried out by a representative of the Viessmann service center in your region, the boiler is also put under warranty.
Technical characteristics of the boiler Viessmann Vitopend 100-W:
- minimum and rated power - 10.7-23 kW;
- the power of the hot water supply system is 23 kW (this boiler has the priority of hot water supply, therefore, when this circuit is turned on, all the resources of the boiler are directed to water heating);
- maximum water pressure in the system - 3 bar;
- expansion tank - volume 6 l;
- maximum allowable temperature - 85 °C;
- water temperature range in the heating circuit - 40-80 ° C;
- temperature range in the hot water circuit - 30-57 ° C;
- minimum and maximum performance in the hot water circuit at an average water temperature of 30 ° C - 2.4-11 liters per minute;
- smoke formation temperature - up to 117 °С;
- electrical protection class - IPX4D;
- overall dimensions (width, height, depth) - 40x72.5x34 cm;
- weight - 36 kg.
Control Panel
From left to right: pressure gauge, display, hot water temperature controller, heating water temperature controller, switch
The manometer shows the water pressure in the heating circuit. After the heating system is installed (radiators, heated towel rails, underfloor heating are installed), the circuit must be filled with water. For these purposes, a special key is used that opens the water intake to the boiler heating system.
When filling the system with water, you must look at the pressure gauge so that the water pressure does not exceed 1.5 bar: this is what the manufacturer recommends. But I, for example, brought the pressure in the system to 2 bar, and after a while (the boiler did not turn on for two weeks - I connected the gas, agreed on service) it dropped to the recommended 1.5 bar - air left the system through special valves on batteries and in the boiler itself. When the heating circuit is running, the water will heat up and the pressure will rise to the normal operating rate of 1.8-2.5 bar.
The display shows the temperature of the water in the heating system, the temperature of the hot water, the intensity of the burner, and can also show fault or error codes that are deciphered in the user manual.
The illustration above shows that hot water heating is disabled; at the left, at the bottom of the display, the "light" shows that the water is being heated in the heating system (the battery icon is lit in the "house") and its current temperature.
With the help of temperature regulators, you set the required level as you wish - everything is very individual here. You just have to try several options and settle on the one that suits you. In any case, the regulator must be between the marks "2" and "5" - in the lower position there will not be sufficient heating, and in a position greater than "5" there is a risk of overheating. It should be noted that in order to warm up the room for the desired temperature, it is necessary to set the temperature of the water in the system above 60 ° C (the position of the regulator is above the "3" mark).
Since the boiler has priority for hot water preparation, it is equipped with a special relay that is triggered when a hot water tap is opened: the burner turns on, and a special three-way valve switches to hot water preparation mode.
Attention! If you do not use hot water regularly (you do not live in an apartment, you are absent for a long time), from time to time you should turn on the hot water circuit and release a few liters - to prevent the three-way valve from working normally (so that it does not "sour").
Optional equipment
The Viessmann Vitopend 100-W boiler can be equipped with additional devices that will greatly simplify its operation.
Vitotrol 100 RT is a room thermostat on which you set the desired temperature in the room, and it takes over all control of the boiler.
Vitotrol 100 UTA - a more complex model of the thermostat, allows you to program the temperature regimes throughout the day. For example, you can program it so that at night the temperature will be maintained at, say, 17 ° C, and by the time you wake up at 7 in the morning it will already be 21 ° C. In the same way, during the working day, when there is no one in the apartment, the air temperature can be lowered, and by the time you arrive from work, the thermostat will raise it to the most comfortable level.
Vitotrol 100 RT (left) and Vitotrol 100 UTA (right)
Vitotrol 100 UTDB is an even more sophisticated device, equipped with a liquid crystal display to indicate operating modes.
Vitotrol 100 UTDB-RF - this gadget has a device for receiving and transmitting radio signals, with its help the temperature in the room can be set remotely.
Vitotrol 100 UTDB (left) and Vitotrol 100 UTDB-RF (right)
Operating tips
Be sure to check that the gas hose is connected to the boiler without distortions and mechanical stresses. It goes without saying that there should be no gas leaks.
When the master from the service center was preparing for the first start-up of the boiler, he checked for gas leaks with a special highly sensitive device. And it turned out that almost all junctions are leaking - a little, insignificantly, but they are skipping (no leaks are visible when checking with a soapy solution). I had to call the gas workers, who again "repacked" all the connections.
In order to respond in a timely manner to possible gas leaks, I recommend purchasing a household gas analyzer (without it, they may not even give gas to your apartment). Asking price $20. The device is installed at a height of 20-30 centimeters above the boiler and, in the event of a gas leak, it will give a rather unpleasant sound signal, which will be very difficult not to hear (you can check it with gas from a simple lighter).
In order to extend the life of the boiler and its combustion chamber, it is necessary to install a gas filter - there may be small abrasive particles (sand and other debris) in the gas pipeline that can clog the combustion chamber, which will necessarily affect its normal operation. Such a filter costs up to $10, and you can clean it yourself - remove the front cover and clean the foam filter, which is located between two metal meshes. After cleaning, make sure that the lid is screwed on tightly and there is no gas leakage.
The electronics in the Viessmann Vitopend 100-W boiler are very sensitive to voltage drops, so I strongly recommend purchasing a voltage stabilizer. Firstly, it will ensure the normal and uninterrupted operation of the equipment, and secondly, it will save your nerves and money - warranty obligations do not apply to the failure of the boiler due to a power outage (you can only sue the energy supply company, and how it will end in our realities, you know yourself).
I purchased such a voltage regulator for $40, which, you see, is not much compared to the cost of a boiler or how much it can cost to replace electronics. The stabilizer at the output "hardware" gives 220 V and works normally when the input is from 140 to 250 V. It is designed for a power of 500 W, which is quite enough for one boiler.
If you have a coarse water filter installed and water enters the boiler through it, then it is better to choose a mesh as a filter element (mesh size from 5 to 50 microns). The use of a filament filter or any other, the smallest parts of which can eventually get into the heater and impair its performance, should be avoided.
After the first start-up (we let the boiler run for a day and turn it off), I also recommend cleaning the "return" filter. To do this, close two taps (upper and lower), unscrew the cover and clean the filter mesh from possible debris that got into the heating system during its installation.
An important point - when turning off the boiler, first turn the temperature regulators to the extreme left position, let the boiler work for several minutes (so that the temperature in the heater drops) and only then turn it off from the network.
If you are going to close the boiler in a cabinet, build it into furniture, then you should take into account that its body is removed "up". Therefore, it is necessary to leave a distance of about 20 centimeters between the upper part of the boiler and the furniture, so that service can be carried out.
For normal operation of the boiler, air flow is necessary, therefore it is strictly forbidden to close the special openings intended for this.
In the room where the boiler is installed, there should not be high humidity for a long time - you should not dry clothes in the same room with this device.
It is very important to properly ventilate the premises when the boiler is running. To do this, before opening the window, completely close the thermostatic valves on the radiator. This will save gas and electricity.
When airing - set the regulator to "snowflake"
Another serious point - radiators and thermostatic valves for normal operation should not be closed or cluttered (with heavy curtains or foreign objects).
Also, to save money, you should maintain the temperature in the room at the same level (20 ° C is considered optimal) - the boiler will work stably, evenly consuming gas and electricity.
If you have blinds or shutters, you can close your windows at night to reduce heat loss.
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.
|
Wall-mounted gas-fired single-circuit boiler Viessmann VITOPEND 100-W, type WH1D |
||||||
|
Thermal power, kW |
24 .8 |
24 |
24 .8 |
24 |
||
|
Boiler type |
single-loop |
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 hot water boilers Viessmann Vitopend 100-W WH1D with an atmospheric modulated burner are designed and recommended by the manufacturer to provide individual heating and hot water preparation. The scope of single / double-circuit gas boilers wall-mounted Viessmann Vitopend 100-W is the main source of the autonomous heating system for private residential buildings and other premises, small in area and building volume.
According to the intended use, the Vitopend 100-W single/double circuit hot water boiler may only be installed and operated in closed heating systems with forced circulation of the coolant and in accordance with the relevant installation, service and operation instructions in accordance with Russian regulations and the European standard EN 12828:2014 "Systems heating in buildings. Design of water heating systems.
Boilers Vitopend 100-W with an open combustion chamber use natural draft to remove combustion products. The coaxial LAS exhaust system of the Vitopend 100-W boilers with a closed combustion chamber ensures 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 Vitopend 100-W single-circuit gas heating boiler, 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 industrial or industrial use, or for purposes other than space heating or hot water production.
Improper operation (handling) of the Vitopend 100-W gas boiler is prohibited and releases the manufacturer from liability for failure of the boiler system. Changing the elements of the 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 in small areas, for example, in wall niches.
Specifications
Table number 2.
|
Single-circuit and double-circuit boiler VIESSMANN VITOPEND 100-W WH1D |
|||||
|
The combustion chamber |
open |
closed |
|||
|
Technical Parameter |
Meaning |
||||
|
Boiler identification number |
|||||
|
Nominal heating output range for space heating/DHW heating |
|||||
|
Efficiency at full load (100%) |
|||||
|
Efficiency at partial load (30%) |
|||||
|
Nominal gas supply pressure |
|||||
|
Natural gas |
|||||
|
Natural gas with pressure sensor |
|||||
|
Liquefied gas |
|||||
|
Maximum allowable gas supply pressure |
|||||
|
Natural gas |
|||||
|
Liquefied gas |
|||||
|
Maximum electrical power consumption* |
|||||
|
Working voltage |
|||||
|
Electrical protection class |
|||||
|
Maximum boiler water temperature |
|||||
|
Permissible operating pressure |
|||||
|
Diaphragm expansion tank |
|||||
|
Inlet pressure |
|||||
|
Boiler volume Vitopend |
|||||
|
DHW indicators** |
|||||
|
Max. operating pressure |
|||||
|
Long-term performance for hot water preparation |
|||||
|
Water consumption (T = 30 K) |
|||||
|
DHW temperature control range |
|||||
|
Flow parameters at maximum load |
|||||
|
Natural gas |
|||||
|
Liquefied gas |
|||||
|
Energy efficiency and environmental friendliness |
|||||
|
Energy efficiency according to 92/42 EWG |
|||||
|
NO x emission |
__ mg _ |
||||
|
CO emissions at full load |
|||||
|
Flue gas characteristics at 20 °C air temperature (natural gas/LPG) |
|||||
|
Flue gas temperature at maximum output |
|||||
|
Flue gas temperature at minimum output |
|||||
|
Flue gas flow at maximum output |
|||||
|
Flue gas flow at minimum power |
|||||
|
Flue gas pressure: - maximum allowable pressure |
|||||
|
Required pressure |
|||||
|
Residual pressure of flue gas fan |
|||||
|
System of removal of products of combustion LAS |
|||||
|
Chimney diameter |
|||||
|
coaxial chimney |
|||||
|
Parallel chimney |
|||||
|
Note. * Maximum electrical power input including circulation pump. ** DHW values only for gas combined (two-circuit) hot water boiler. |
|||||
Device and product description
The low-temperature gas flow-type hot water boiler Viessmann Vitopend 100-W, type WH1D, is one of the most popular high-performance, economical wall-mounted boilers, and it is especially important for a potential owner: with an optimal ratio 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 of residential buildings of various sizes and construction volumes. The heat output of boilers with a closed combustion chamber for space heating and hot water preparation is 24.8/31 kW and 24/30 kW for an open combustion chamber.
Wall-mounted boilers Viessmann 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 of the Vitopend 100-W WH1D double-circuit boiler is a plate-type flow heat exchanger of small volume, in which cold water from the cold water supply system is heated by the 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 central heating system, 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 Vitopend 100-W WH1D single-circuit boiler is naturally not equipped with a hot water heat exchanger for the DHW system, however, it is possible to equip this type of boiler with an autonomous Viessmann DHW cylinder, for example Vitocell 100. boiler diagram (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.
The Viessmann Vitopend 100-W boiler, type WH1D, has a long service life and is reliable in operation even with significant fluctuations in gas pressure and electrical voltage. Due to its small overall and mounting dimensions, the boiler is suitable for installation even on the walls of small kitchens or in wall niches in 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;
Efficiency: 83% (Hs) / 92% (Hi);
Boiler capacity in DHW mode is 14.3 l/min;
maintaining a constant temperature of hot water thanks to an electronic temperature controller;
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 are installed (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. Therefore, a necessary element of the control system is a temperature sensor and an electronic controller. The modulating atmospheric burner of the Viessmann Vitopend 100-W gas boiler is pre-configured to operate on 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 power of the burner and the aerodynamic resistance of the 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)
Since the heating installation is a 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 to operate in standard mode at the factory. 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. The initial factory setting can be changed at the discretion of the user in order to create more comfortable living conditions. 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.
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Rice. 3. Controls and indications |
Fig.4. Display indication |
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1 - manometer; 2 - display; 3 - regulator "Hot water temperature"; 4 - regulator "Heat carrier temperature"; 5 - on / off button with the RESET function. |
A - heating; B - preparation of hot water; C - digital indication or fault code; D—temperature, °C; E – service setting is active (only for specialists); F is the current burner power; G - the burner is working; H - malfunction. |
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 the use of a remote control device (thermostat), the desired room temperature is set using the “Heat medium 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.
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Fault indication on the display |
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malfunctions |
Installation behavior |
Cause malfunctions |
Accepted measures |
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A0 |
Burner blocked |
Gas pressure too low |
Check gas pressure and gas pressure switch |
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E0 |
Burner blocked |
Thrust tipping control device activated |
Check gas duct. Instruction. If the draft tipping control device has actuated 10 times within 24 hours, the burner goes into fault mode (fault indication "F6"). |
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F2 |
Burner failure |
The temperature limiter has tripped |
Check the filling level of the heating system. Check circulation pump. Remove air from the installation. Check temperature limiter and connecting cables. Turn the knob to unlock"Coolant temperature" almost to the full to the right and then back (reset). |
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F3 |
Burner failure |
Flame signal already present at burner start |
Check ionization electrode and connecting cables. |
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F4 |
Burner failure |
No flame signal |
Check ignition electrodes / ionization electrode and connecting cables, check gas pressure, check gas control valves, ignition, ignition transformer. Switch the power switch off and on again or perform a reset, see F2. |
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F6 |
Burner failure |
Thrust tipping control device activated |
Check the tilt sensor. Switch the power switch off and on again or perform a reset, see F2. |
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F30 |
Burner blocked |
Short circuit of the boiler temperature sensor |
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F38 |
Burner blocked |
Boiler temperature sensor break |
Check the boiler water temperature sensor. |
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F50 |
Short circuit of the temperature sensor of the tank water heater (gas single-circuit boiler) |
Check sensor |
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F51 |
No hot water preparation |
Short circuit of the outlet hot water temperature sensor (gas combi boiler) |
Check sensor. |
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F58 |
No hot water preparation |
Breakage of the temperature sensor of the storage water heater (gas single-circuit boiler) |
Check sensor. |
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F59 |
No hot water preparation |
Break in outlet hot water temperature sensor (gas combi boiler) |
Check sensor. |
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b0 |
Burner blocked |
Short circuit of the traction control sensor |
Check sensor. |
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b8 |
Burner blocked |
Breakage of the traction control sensor |
Check sensor. |
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 service, 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.
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Parameter |
Unit rev. |
Pump type |
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UP 15-60 |
UP 15-50 |
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Rated heat output of the boiler |
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Hydraulic characteristic (fig.6) |
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Voltage |
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Circulation pump power |
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Installation input parameters: · Water temperature:< 85 °C. · Minimum pressure: 0.8 bar. |
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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
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24/24.8 kW boiler |
30/31 kW boiler |
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Fig.10. Overall and mounting dimensions of the Viessmann gas boiler Vitopend 100-W, type WH1D |
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A - place for electrical cables. B - the required height, taking into account the underfloor DHW cylinder. C - width (depth) of the boiler. D - reinforcing cover. |
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Table number 4. |
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Overall dimensions of the wall-mounted gas boiler Viessmann Vitopend 100-W, type WH1D |
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Parameter |
Boiler heat output |
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Height with reinforcement cover |
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Height including underfloor DHW cylinder |
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Weight of single/double circuit boiler |
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Boiler connections: |
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supply line |
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return line |
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Gas connection |
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Installation instructions
Vitopend 100-W wall-mounted gas boilers have been specially designed for quick installation and reduced maintenance time. Installation of the Viessmann Vitopend 100-W wall-mounted boiler, type WH1D, should be entrusted to a specialized service organization. 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 codes 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.
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 extends 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.
In order to avoid damage and deformation of the connecting pipes of the Vitopend 100-W boiler, it is strictly forbidden to use an improper installation tool and apply excessive forces (loads). 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).
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Fig.11. Mounting kit, straight |
Fig.12. Mounting kit under the boiler |
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1 - Hanging bar. 2 - Mounting kit for connection, straight. 3 - Reinforcing cover. |
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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 connection kit for mounting a water heater under the boiler, as well as a connection kit for mounting a water heater installed next to the boiler.
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Pre-marking with mounting template. |
Boiler installation. |
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Connection of electrical connections. |
Commissioning. |
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Fig.14. Installation and commissioning of the boiler |
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Wiring diagram for gas boiler Viessmann Vitopend 100-W, type WH1D |
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CN 8– stepper motor of the switching valve; T8– high voltage transformer and 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 shut-off gas valve; 47 – temperature limiter; 149 - relay (sensor) DHW; 100/159 – blocking of exhaust devices by means of an external extension module H3; 162 – traction control sensor; 190 - modulating coil. |
Since the Viessmann Vitopend 100-W WH1D gas boiler is supplied ready for direct operation, the main electrical installation connections are made inside the boiler at the factory. The installation of 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's sockets, so this work, as well as the connection to the mains, should be entrusted to a specialized service organization. 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 the mains, has the appropriate number of cores for external connections. The power supply network must have a neutral wire, and the mains 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 forbidden to connect additional auxiliary equipment on the controller to the boiler in a zone of high humidity. When installing the boiler outside of wet rooms, the connection of accessories to the mains can be made 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 where the chimney passes 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. Cheap fakes of Viessmann products have entered the Russian market, which are distinguished by their 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 of 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 official distributors.
RANDSTROY Group of Companies
is the official distributor of VIESSMANN products
in Russia and CIS countries
