Storage water heaters Drazice. Storage water heaters Drazice Connecting drazice okc 160 to the boiler

Excellent for heating water for technical and household needs floor boiler indirect heating Drazice OKC 200 NTR with a volume of 200 liters with an enameled tank and powerful heat exchanger power 32 kW. The water heater is available with two heat exchangers to connect two sources hot water from heating system(gas boiler and alternative source).

Water heater overview

All Drazice water heaters are manufactured in the Czech Republic using the most modern technologies and reliable materials. Drazice OKC 200 NTR is a productive and durable boiler in metal case, having all the necessary side outlets of the heat exchanger for convenient maintenance or repair work.

Vertical indirect water heater heating Drazice OKC 200 NTR has very low heat loss and is designed for heating hot water in private houses, apartments, public buildings, offices, shops.

Water can be heated either by a heat exchanger, using another heat source (using a heating boiler), or by a heating element (heating element). It is necessary to take into account that the heat exchanger is designed to operate at maximum temperature heating water 110 °C and a pressure of 1 MPa.

For greater comfort, the Drazice OKC 200 NTR boiler is equipped with a thermostat that controls the operation of a three-way valve and circulation pump.

Boiler features

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Features of the Drazice OKC 200 NTR water heater:

• powerful spiral heat exchanger;
• maximum heating water temperature 110°C, pressure 1 MPa;
• thermostat;
• safety valve;
• enameled steel tank;
• built-in magnesium anode;
• high-quality polyurethane insulation;
• water heater operation alarm;
• precise control of water temperature;
• possibility of turning on circulation;
• simple installation and connection to a heating water source;
• very fast water heating.

Technical description of the water heater Drazice OKC 200 NTR

The water heater tank is made of steel sheet and tested with an overpressure of 0.9 MPa. The inner surface of the tank is enameled. A flange is welded to the bottom of the tank, to which the flange cover is screwed. An O-ring is inserted between the flange cover and the flange. There are sleeves in the flange cover
to accommodate the sensors of the control thermostat and thermometer.

An anode rod is installed on the M8 nut. The water tank is insulated with solid polyurethane foam. The electrical wiring is located under a plastic removable cover. The water temperature can be set using a thermostat. To pressure tank
heat exchanger is welded.

The shut-off valves of the heat exchanger must be open, thereby ensuring the flow of heating water from the water heating system. Together with the shut-off valve, it is recommended to install an air release valve at the inlet to the heat exchanger, with which, as necessary, especially at the beginning heating season, air is released from the heat exchanger.

Heating time boiler Drazice OKC 200 NTR is dependent on the temperature and water flow in the hot water heating system via a heat exchanger.

Connecting the boiler to the water supply

For possible shutdown of the water heater at the inlets and outlets process water needs to be mounted threaded connections Js ¾. If the hot water supply line is equipped with a circulation circuit, the “return” is connected to the input designated as
CIRCULATION.

For the Drazice OKC 200 NTR boiler, a T-shaped fitting with a drain valve must be installed at the hot water supply inlet. The water heater must be equipped with a safety valve. Safety valve is installed at the inlet cold water, which is indicated by a blue ring.

The water heater must be equipped with a drain valve. The water heater must be equipped with a diaphragm safety valve with a spring. The safety valve should be easily accessible and located as close to the water heater as possible. The supply pipeline must have inner diameter at least the same as the safety valve. The safety valve is installed at a height that allows dripping water to drain by gravity.

We recommend installing a safety valve on the branch. This will ensure
possibility of easy replacement without the need to drain the water from the water heater. For installation, safety valves with a fixed pressure set by the manufacturer are used. The response pressure of the safety valve must be equal to the maximum allowable pressure of the water heater and at least 20% higher than the maximum pressure in the water supply. If the pressure is
the water supply exceeds this value, a pressure reducing valve must be included in the system. It is prohibited to install any shut-off valves between the indirect heating boiler Drazice OKC 200 NTR and the safety valve.

When installing, follow the instructions of the safety equipment manufacturer. Before each commissioning of the safety valve, it must be checked. The test is performed by manually removing the membrane from the seat, always turning the release device button in the direction of the arrow. After turning, the button should fit back into the groove. The correct function of the separating device is indicated by the flow of water through the drain pipe of the safety valve.

During normal operation, it is necessary to perform such a check at least once a month, and also after each shutdown of the water heater for more than 5 days. Water may drip from the safety valve through the outlet tube; the tube must be freely open to the atmosphere, pointing vertically downward, and installed in an environment where the temperature does not fall below freezing. When draining the water heater, use the recommended drain valve. First you need to turn off the water supply to the water heater.

To provide proper operation safety valve in the inlet
The pipeline must have a built-in check valve to prevent spontaneous emptying of the water heater and the penetration of hot water back into the water supply.

Technical characteristics of the boiler Drazice OKC 200 NTR

If you are faced with the task of choosing water heating equipment, professionals recommend paying attention to the Drazice brand boiler. The Czech company has been producing equipment for more than 60 years, constantly improving functionality and design. Buyers are offered devices that provide significant savings. Despite quite high cost, the quality of work and long service life fully justify the cost of purchase. Connection is possible to the heating system or electricity.

The Drazice indirect heating boiler is connected to the boiler, the circulating coolant maintains desired temperature. The design includes a water tank in which the coil is located. Drazice can run on coal and wood, gas, alternative sources (solar energy, biofuel). The equipment is capable of supplying water to several points simultaneously.

The devices are made of steel and coated with heat-protective enamel, which protects the body, internal walls and seams from damage and corrosion. The magnesium anode softens the water and prevents scale formation. The exterior is coated with powder paint and varnish using the hot drying method. The spraying color can be white, red, blue or silver, depending on the wishes of the buyer.

The main difference between Drazice OKC 160 NTR is the presence of a ceramic thermoelement. Its long service life is due to the protective shell made of the same steel as the body. Therefore, the device is not afraid of the destructive effect of galvanic or chemical exposure. The heating element is built into the flange, which makes it easy to replace it in case of breakdown without exposing the structure to depressurization. Thanks to the thermal insulation layer made of polyurethane, the percentage of energy loss is minimized.

Description of the model range

All types of tanks are manufactured and assembled in the Czech Republic, which confirms high quality. There are combined devices for heating from electricity and heating systems that operate only from one source, boilers with two spiral exchangers. To purchase suitable option, it is necessary to consider the features of several series:

1. Drazice OKCV, OKC combined type(80-200 l).

This hanging structures with a steel tank coated with enamel. Equipped with a water outlet tube, temperature indicator, safety thermostat. Thermal insulation made of polyurethane 40 mm thick does not contain freon, the inner surface is covered with high-quality enamel without the addition of nickel. The service hatch allows for preventive maintenance to remove scale and sediment.

This series of Drazice combination boilers includes OKCV 125, 160, 180, 200 NTR brands. Tank volume 75-147 l, operating pressure - 0.6-1 MPa. Power consumption – 2 kW. Maximum temperature is 80 °C, heating time is 2.5-5 hours. Models Drazice OKC 80, 100, 125, 160, NTR/Z are designed for vertical installation; according to reviews, they are very productive; almost all types have a dry ceramic thermoelement and circulation. Volume – 175-195 l, power consumption – 2.5-9 kW. Heating time – 5 hours, with a heat exchanger – 25-40 minutes.

2. Drazice OKCE NTR/BP, S with indirect heating.

Boilers produced by Drazice for 160-200 liters of storage type. Suitable for technical and household needs with a given volume. Powered by boilers with solid and liquid fuels, gas equipment and alternative energy sources. The model can be purchased complete with auxiliary thermoelements built into the flange. The body is coated with white powder-based paint; thermal insulation is supplied additionally; it must be installed independently.

OKCE 100-300 S/3 boilers are designed for a power of 2,506 kW. The tank volume is 160-300 l, the maximum pressure is 0.6 MPa, the temperature is 80 °C. Heating time takes from 3 to 8.5 hours. Drazice OKCE 100-250 NTR/BP have a built-in or side flange. They can work with a volume of water from 95 to 125 liters at a pressure of 0.6-1 MPa. The power of the lower and upper exchanger is 24-32 kW. The maximum water temperature is 110 °C. Network security factor IP44.

3. Electrical types.

Drazice water heaters are storage heaters and are designed for wall mounting. Due to the fact that the distance between fasteners has not changed throughout the history of the company, replacing old equipment with more advanced equipment will not be difficult. Activities are carried out using ceramic element controlled by a thermostat. A fuse is installed for safety. Parts can be replaced without breaking the seal, thanks to the service hatch.

Drazice OKHE 80-160 are equipped with a dry heating element, an adjusting screw, and reinforced thermal insulation 55 mm thick, which protects against resource loss. Tank volume – 80-152 l, nominal pressure rise – 0.6 MPa. Power consumption is 2 kW, water heating time from electricity is 2-5 hours.

All Drazice models of this type can be equipped with elements with a rating of 4000 W, due to which the period of liquid treatment before use will be halved.

4. Boilers powered by the heating system.

This series includes Drazice OKC 200 NTR, OKCV NTR. Suitable for preparing hot water from a carrier or using solar systems. This is a hinged vertical or horizontal floor equipment round shape. The tank is covered with a steel casing treated with white varnish. Heat loss is reduced by a 40 mm thick layer of polyurethane. Equipped magnesium anodes, tubular exchanger, thermometer, service hatch. In the OKS package, insulation is supplied separately; it can be installed independently. All models have their own circulation. The volume of the tanks ranges from 150 to 245 liters in the first version and 300-1000 liters in Drazice OKCV. Water heating temperature is 80-100 °C, element power is 32-48 kW. Operating pressure– 1-1.6 MPa.

5. Boilers with two spiral heat exchangers.

Boilers from Drazice Solar, Solar Set, OKC NTRR are used for solar collectors. The system is controlled by a special regulator that activates or deactivates the pump, depending on temperature fluctuations between the solar system and the storage tank hot water. Additional heating is carried out using an electric thermoelement or a top-type heat exchanger.

The package includes a pre-mounted pump designed for a liquid flow rate of 2-15 l/min, a regulator for solar equipment. Steel tank equipped with reinforced insulation 60 mm thick. A control brake device is installed at the lower entrance, protecting against arbitrary circulation in the solar circuit. There is a vertical temperature sensor.

Owners' opinions

For those who are planning to purchase an indirect heating boiler and cannot decide on the manufacturer, it is recommended to use the reviews of owners who have already installed a Drazice device in their homes:

“Boilers from the Czech manufacturer Drazice are suitable for any apartment or house. Regardless of the model you choose, you can be sure of quality work and long service life. Thick layer thermal insulation allows you to minimize energy losses as much as possible. Better install expansion tank, taps between the tank and the safety valve are not needed. Reviews and impressions about my OKC160 NTR equipment are only positive.”

Anatoly Tokarev, Moscow.

“We have had a boiler from Drazice for 5 years, model OKCV 200 NTR. During this time, preventive maintenance was carried out only a few times, and once the anode had to be changed. Thanks to the special design and reserve hatch, this is easy to do. Since the device works flawlessly, we are not going to buy another one. Based on the principle of indirect heating, it is convenient to maintain big house, which the technology copes with excellently. It’s better to entrust the connection to professionals.”

Anna, St. Petersburg.

“Two years ago I purchased a water heater from Drazice, brand Solar Set. I had to buy this particular model, which was related to the design of the solar collector. In all this time, the boiler has never failed, even though it took a lot of effort to install. Supplies water to all points: bathroom, shower, kitchen. Copes well with heating functions. The main task is to carry out prevention on time. No matter how hard they tried to purify the water, even installing powerful filters, scale still formed. Timely measures did not allow a single part to fail.”

Maxim, Ekaterinburg.

“We bought the wall-mounted Drazice OKCE 100 NTR more than a year ago. We were attracted by its characteristics and positive reviews consumers. We have a very large family, so the entire volume is used up quite quickly. But this does not prevent the boiler from heating the water in a timely manner. the right quantity. Since there are children in the house, the temperature was set to the optimal temperature thanks to the regulator. It has two heating elements, one of which is turned off in case of downtime, which allows you to save money. The water heating time is about 4 hours, which suits us quite well. Now we give positive reviews and recommend them to all our friends.”

Victoria, Nizhny Novgorod.

The nuances of installing a boiler

The connection diagram for an indirect heating boiler is to comply with the following conditions:

1. Mounted models attached to anchor bolts or staples. For floor option It is necessary to prepare the surface: it must be flat.

2. The pressure in the system corresponds to the declared parameters of the device, which are indicated in the technical data sheet.

3. To reduce heating time, it is better to place the equipment above the boiler. When stationary options a podium with a height of 10 cm is required.

4. When installing the boiler, safety precautions must be observed.

5. Inlet and return pipes are directed towards the boiler.

6. If used complex systems heating and hot water supply, a manifold, hydraulic arrow or module is mounted for distribution.

7. With two boilers, it is advisable to use two pumps and a connection check valve. In this case main role plays the circuit intended for the boiler. The operation of all systems is controlled by a temperature sensor.

Price

Prices for Drazice indirect heating boilers depend on many factors. The design of the device, tank volume, dimensions, availability additional elements. The table shows the approximate cost for different models:

Drazice water heaters are one of the best options to provide housing with hot water supply. They can operate from a heating system or electricity, and are effective when used with solar installations. Coal, firewood, gas, and alternative sources of resources are suitable for operating the equipment. Each boiler element is designed for reliability, economy and long-term operation.

IN Lately, in suburban and apartment buildings Boilers are often installed (from the English boiler). These water heaters are capable of supplying a family of several people required quantity hot water, regardless of the operation of the central line. Considering that Russian heating networks and urban water supply systems are often in poor condition, interruptions in hot water are far from uncommon.

Flow-through heaters are becoming a thing of the past: high electricity consumption with minimal efficiency. They are being replaced by indirect heating boilers, which differ high efficiency at minimum costs. Among the variety presented on the market, the products of the Czech company DRAZICE are in consistently high demand, which we will consider in more detail.

How do indirect heating boilers work?

This type of equipment is distinguished by the fact that it does not have its own heating elements. Accordingly, the consumer does not incur additional costs by paying endless bills from electricity suppliers.

The water in such a system heats up when interacting with external coolants. Therefore, indirect heating boilers can be connected to the heating systems of apartment buildings and country houses, gas boilers and even solar panels.

The system works according to this principle:

Inside the boiler there is a spiral, popularly called a coil. Coolant is supplied here from any external source.

Coolant circulation is provided by a pump.

Water is poured into the tank from home system water supply

When interacting with the coolant, cold water is heated to a given temperature.

To eliminate heat loss, the entire system is reliably insulated.

Do not worry that connecting a water heater will reduce the efficiency of the heating system. The coolant, having gone through a full turn of the spiral, returns back to the system. Thanks to the operation of the pump, constant circulation is ensured.

Advantages and disadvantages

Any hot water supply system is not without flaws. Absolutely perfect equipment does not exist in nature. To the credit of the DRAZICE company, its indirect heating boilers have virtually no drawbacks; on the contrary, if you analyze customer reviews, the system is almost ideal. However, we managed to find a fly in the ointment in this barrel of honey, but let's start traditionally with the sweet.

Advantages:

Saving. The cost of a cubic meter of cold water is much lower than hot water. At the same time, indirect heating boilers do not require connecting additional power sources and heating elements.

Benefit. Thanks to such a system, it is possible in a relatively short term provide the family with a large volume of hot water - the capacity of devices for continuous water heating varies within 10-200 liters.

Practicality. The coolant for such a system can be obtained from any external source.

Safety. The coolant is reliably protected from contact with water. In addition, the system is reliably protected from overheating and short circuits.

Convenience. The boiler delivers water to several outlets while maintaining a stable temperature. As a comparison, storage water heaters usually cannot cope with such a load. If one person is taking a shower and another opens the kitchen faucet, the first person will probably be sprayed with a stream of ice water or boiling water.

Flaws:

The cost is usually higher than any similar equipment.

It takes quite a long time to heat the water in the tank. In this regard, storage water heaters with built-in heating elements look more advantageous.

Connection problems in summer. At this time, the heating systems are turned off, so problems arise with coolant intake. The problem is solved with the help of built-in heating elements, which eliminates the advantage of savings.

In addition, for efficient work systems, the boiler must be installed in close proximity to the coolant source. Considering that the equipment has impressive dimensions, this can be difficult to do. For example, when connecting a boiler to gas boiler in a private house, a separate technical room will be required.

Options for connecting a device for continuous water heating

Connecting an indirect heating water heater to heating and water supply systems is carried out in two stages. First, the cold water supply is connected:

The supply is carried out through the lower pipe.

At the midpoint there is a recirculation zone.

Dispensing points are connected to the upper pipe.

Connection to the coolant is carried out in the reverse order:

Hot water enters through the top pipe.

The cooled coolant comes out from the bottom point.

Quite often, connection via a three-way valve is practiced. The result is an automatic two-circuit system:

Basic heating.

Boiler heating circuit.

The connection works like this: the valve switches the operation of the system, guided by the thermostat signals. If the temperature in the DHW system drops to the set minimum, the valve is activated, redirecting the flow of hot water to the coil (see diagram below). When the temperature reaches the set values, the valve operates in the opposite direction, directing the coolant into the heating system.

Model range of DRAZICE company

When choosing products from this manufacturer, it would be a good idea to familiarize yourself with the offered range. The company offers the following models:

DRAZICE OKC NTR/Z

Temperature indicator

Tubular heat exchanger

Working thermostat with external control unit

Electrical connection cover

Cold water inlet pipe

Warm water outlet tube

Magnesium anode

Polyurethane insulation 42 mm without freon

Water heater casing

Circulation

Other hot water outlet

This is a series of storage type boilers with the ability wall mount. The location of the tank is vertical. All models in this series do not have built-in heating elements; the heat exchanger is in contact only with external sources.

As standard, boilers are equipped with thermostats for connecting a circulation pump and a three-way valve, fuses, and circulation terminals. This series releases 5 models, which have a tank volume 80, 100, 125, 160 And 200 liters.

Accordingly, each buyer will be able to choose a boiler that fully meets individual requirements. The heating time of the tank with coolant varies within 14-50 minutes.

DRAZICE OKCV NTR

Warm water supply tube

Steel enameled tank

Polyurethane insulation

Magnesium anode

Heating water supply

Sleeve for operating and safety thermostat

Working thermostat with external control unit, safety thermostat

Electrical connection cover

Cold water inlet pipe

Heat exchanger

Heating water output

Water heater housing

A series of indirect heating boilers of the storage type with a horizontal tank arrangement. As in the previous case, heating elements are not provided for in the design; water is heated only from an external coolant.

Maximum permissible external source temperature: +110 degrees, system pressure - 0.4 MPa. For maintaining optimal temperature regime responds to the built-in thermostat, which can control a pump, two- or three-way valve.

The series is presented on the market in four models, with tank volume: 125, 160, 180 And 200 liters. Heating time varies within 26-43 minutes. Heat loss does not exceed 1.4 kW/hour.

DRAZICE OKC NTR, NTRR

A series of indirect heating boilers of storage type for floor installation. The location of the tank is vertical. It should be noted that the boiler marking indicates the number of heat exchangers: NTR- one, NTRR- two. Option with double connection to the coolant, for example: a gas boiler and any alternative source, helps to significantly increase the efficiency of the equipment.

OKC NTR

Steel enameled tank

Sleeve for operating and safety thermostat

Water heater casing

Tubular heat exchanger

Release hole

Cold water inlet pipe

Circulation

Magnesium anode

Warm water outlet pipe

Electrical connection cover

The series consists of six models, tank volume: 100, 125, 160, 200 And 250 liters It should be noted that the option of working with two heat exchangers is provided only for the series NTRR, volume 200 And 250 liters The basic package includes a thermostat, safety valve, and circulation outlet.

Heating time varies from 14 to 36 minutes. If two coolants are connected, this figure decreases by 1.5 times.

OKC NTRR

Thermometer. Working thermostat with external control unit

Steel enameled tank

Sleeve for operating and safety thermostat

Water heater casing

Freon-free polyurethane insulation

Tubular heat exchanger

Release hole

Cold water inlet pipe

Circulation

Magnesium anode

Warm water outlet pipe

Electrical connection cover

DRAZICE OKC NTR BP, NTRR BP

Latest generation indirect heating boilers. The models are of the floor-standing type with a vertical tank arrangement. The water tank is enameled, it is possible to connect one or two coolants: marking NTR And NTRR respectively.

OKC NTR BP

Steel enameled tank

Water heater housing

Warm water outlet pipe

Cold water inlet

Magnesium anode

Adjustment panel for lower heat exchanger and temperature indicator

Circulation

Heat exchanger

OKC NTRR BP

Steel enameled tank

Water heater housing

Warm water outlet pipe

Opening for cleaning and inspection

Circulation

Tubular heat exchanger

Cold water inlet pipe

Magnesium anode

Hole for heating element 6/4"

Temperature indicator

Sleeve for temperature sensors

A key feature is the flanged manhole located at the bottom of the tank. This element is used for Maintenance boiler, can serve as a nest for installing a water heating element. In addition, to connect to the system solar panels, a special pipe is provided. This feature is available in models NTRR with tank volume from 200 liters.

How to read symbols correctly

About company

The DRAZICE brand is well known in Europe and far beyond its borders. The main specialization of the company: production and sale of water heating systems, volume from 5 to 1,000 liters. The company makes history since 1900, starting activities as a mill and bakery.

Arrival of a new leader in 1910 radically changed the development of the enterprise. DRAZICE begins a large-scale study of the energy sector and even builds a two-turbine hydroelectric power station. Later 16 years, the company already owns 8 hydroelectric power plants, providing electricity 380 settlements.

The turning point is 1956, when the development of a new direction of compact water heaters began. Already in 1972, an innovative combined type boiler was created and put into mass production.

Currently, DRAZICE is one of the largest European suppliers. The company is constantly working to expand its range, exploring new directions.

IN modern world water heating systems are quite popular products that allow you to use hot water at any time for any household needs. The Drazice OKC 200 NTR water heating boiler is a reliable and easy-to-use product that provides residents with access to hot water, regardless of the air temperature outside the window and the atmosphere inside the premises.

Device of indirect heating boiler Drazice 200

The Drazice OKC 200 NTR boiler belongs to attachments and has convenient design, which allows you to install a heat source in rooms of various sizes. Products from the Polish company Drazice are equipped with polyurethane thermal insulation 42 millimeters thick, have class B energy efficiency, a built-in thermometer and two thermostats (working and safety).

Since the boiler is entirely made of steel, the external and inner surface are reliably protected from electrochemical corrosion and the chance of galvanic effect is minimized. A convenient service hatch allows you to free time carry out work to eliminate sediment, scale and water stone.

Technical characteristics of the boiler Drazice OKC 200 NTR/Z

The presented model is designed as a mounted heater using an indirect type of water heating. The equipment is produced in a volume of 200 liters, which allows you to always have a huge amount of hot water available for household and personal use.

The Drazice OKC 200 water heater is capable of heating from 12 to 60 degrees Celsius in 28 minutes with a rated power of 24 kW. Practical dimensions of the equipment: height 130 cm, diameter 58.4 cm, while the weight of the device (empty) is only 87 kg!

Technical characteristics of the boiler Drazice OKCV 200 NTR

This model has similar characteristics to the above device:

• The volume is 200 liters;
• Diameter 58.4 cm;
• Boiler height Drazice OKCV 200 NTR 130 cm;
• Minimum temperature equal to 3 degrees, and the maximum is 80 degrees Celsius;
• Power supply is supplied from a 230 V network. operating frequency at 50 Hz.
• The pressure in the tank is 0.6 MPa;
• The operating pressure of the heat exchanger is 0.4 MPa.

The difference lies in the temperature indicators and weight - the Drazice OKCV 200 NTR weighs only 80 kg.

The Drazice OKC 200 NTR boiler and other models from this company are connected easily and simply; it is enough to have a heat generator on hand, which can be any type of hot water boiler.