Gas water heaters are designed to heat water in apartments and houses that do not have a central hot water supply. The devices are easy to operate, safe, and allow you to adjust the degree of heating.

All Junkers water heaters are adapted for operation in Russia and have a number of advantages:

• adaptation to pressure in Russian gas pipelines of 13 mbar. In Europe this figure is 20 mbar. Unadapted devices in such conditions will be less productive;
• adaptation to the pressure in the water supply. Russia is characterized by low water pressure, especially in multi-storey buildings... Gas column junkers works stably at a pressure of 0.1 atm .;
• high performance. Apparatuses heat 11-16 liters of water per minute;
• cold water is mixed in the mixer;
• flame modulation - automatic power change depending on the volume of water flow;
• security;
• German build quality;
• two years warranty;
• long service life.

Types and prices

The columns are divided into three types according to the method of ignition:

Series B - there is no permanently burning igniter. The ignition comes from two batteries. The inclusion of the column is automatic, there are several safety systems: traction control, fuse, ionization flame control. Water flow and temperature are regulated depending on the water pressure in the water supply system. There is a malfunction indicator. Junkers B series are made of high quality copper and will last at least 15 years. Models: WR 13 B, WR 15 B, WR 10 B (minMAXX).

Series P - piezo ignition. The igniter burns constantly. The power and water flow are regulated separately. Thermoelectric flame control. Models: WR 13 P, WR 15 P, WR 10 P (miniMAXX)

G Series - HydroPower ignition technology. The minimum water pressure is 0.35 atm. There is no burning igniter, ignition is carried out from a hydrodynamic generator. Gas water heater G series provides hot water simultaneously 1-3 water points. Models: WR 13 G, WR 15 G, WR 10 G (miniMAXX).

All models are available in two sizes: standard and mini. The equipment of both versions is the same, the only difference is in dimensions. The price depends on the size of the device and the need for delivery and installation. The average cost in Moscow is shown in the table.

The lineup					Price, rubles
standard		Height, mm	Width, mm	Depth mm
WR 350-3 KDP	WR 13P				8 200
WR 350-3 KDB	WR 13B				10 700
WR 350-3 KDG	WR 13 G				11 400
WR 400-7 KDP	WR 15P				9 600
WR 400-7 KDB	WR 15B				12 000
WR 275-1 KDP	WR 10P				6 700
WR 275-1 KDB	WR 10B				10 100
WR 275-1 KDG	WR 10G				10 600

If buying a new model is too expensive, you can find a good used device. It costs an order of magnitude cheaper.

Possible breakdowns

Junkers' design is one of the most sophisticated to date. But breakdowns still occur due to not correct operation, voltage drops, scale formation, housing corrosion. Factory defects in all service centers are eliminated free of charge. On average, the cost of repairing a Junkers gas water heater in Moscow is 2,000 rubles. If you call the master at home, it will be more expensive, if you take the equipment to the service yourself, it will be cheaper.

Typical faults:

1. The ignition wick goes out. The reason may be a breakdown of the thermocouple, valve or flue gas sensor;

2. The water does not heat up. The reason is a breakdown of the heat exchanger;

3. The water heater is noisy and overheats. The reason is a breakdown of the radiator or blockage with scale;

4. The case is leaking. Problems with the oil seal or heat exchanger;

5. The ignition spark goes out. Cause - the flame controller is broken;

6. Spontaneous shutdown.

Can I repair myself? Of course! For this you need:

• establish the cause of the malfunction;
• have original spare parts;
• have special equipment for diagnostics and repair;
• be instructed in working with gas equipment;
• a lot of time;
• funds for a new device in case of force majeure.

Therefore, the elimination of any malfunctions of the gas column should be carried out by a specialist with special skills and knowledge in this area. Repairs must comply with GOSTs and standards for this type of work. Only in this case can one count on long-term and reliable operation, eliminating the risk of explosion and gas leakage. Genuine parts are available from Bosh dealerships. So, the new hydraulic fittings will cost about 7,000 rubles, the igniter - 500 rubles, and the electronic ignition unit - 5,000 rubles.

Gas water heater Junkers- the technique of German engineers for cooking hot water and facilitating family life. Attractive design and compact design saves space, and make Junkers gas water heaters universal for apartments... The built-in piezo ignition will turn on the device automatically when the water tap is opened. Safe and secure. The protection is based on a thermoelectric impulse, which monitors the formation of gases and, in case of a violation, switches off the igniter.

This automation requires constant supervision by the masters. Disregard of the rules leads to the fact that the Junkers gas water heater stops heating and turns off altogether... Black soot falls, the red light flashes, does not turn on or pops on startup. Trained craftsmen should be trusted to fix these breakdowns.

Gasservice company is a service organization for heating and hot water technology. The advantage of the company is operational repair of gas water heaters Junkers ... Responding to an application within one hour.

Repair of gas water heaters Junkers in Moscow

The workshop offers an on-site cleaning service, prevention and repair of the Junkers gas water heater... We cover the districts of Moscow and the Moscow region. The list of works includes the restoration of defective units and faulty components: wick group, block of solenoid valves, safety automation. Checking the heat exchanger for wear and tear. Flushing the burner, increasing the air flow to increase the heating of the water in winter time. Repair of gas water heaters junkers within the framework of technical cleaning. Replacement Supplies and lubrication of jammed mechanisms.

We leave behind a guarantee confirming the presence of the master. We indicate the malfunction of the column, the type of repair and the cost. Repair of gas water heaters Junkers outside the Moscow Ring Road is paid separately, - 30 rubles = 1 km.

The wick ignites and goes out → Cleaning the gas column → The column does not light up → The column does not heat the water → The column turns off → The column goes out → The igniter / wick goes out → Water dripping from the column →

The Junkers gas water heater is a product of the German concern Bosch. Like all German technology, these devices are easy to use, reliable, durable and use natural gas economically.

About company

The Junkers brand merged with the giant Bosch Gruppe in 1932. And the history of the brand began back in 1895, when the German engineer Hugo Junkers, an inventor and industrialist, opened a factory for the production of water heating devices. Junkers himself patented about two hundred inventions - this is a record for his time. The company has introduced piezo ignition since 1968. Then a column with ignition from 2 batteries was released. 10 years later, Junkers launched the world's first wall-mounted combi boiler with continuous power regulation. The brand is known for its turbocharged speakers - not many manufacturers make them. Bosch Thermotechnology is the world's largest manufacturer heating equipment, occupies a leading position in Europe.

disadvantages

Even the famous German quality cannot completely eliminate the disadvantages arising from the design features of water heaters. Disadvantages of Junkers speakers:

1. Almost all modifications are distinguished by increased noise.
2. After a few years (5-6), the heat exchanger begins to fail - leaks may appear.
3. The joints have to be sealed, and the gaskets that are supplied with the Junkers models are not enough to eliminate leaks.

Masters say that the cause of problems with the heat exchanger is scale. The instruction manual recommends: for the equipment to function properly in the conditions of the Russian water supply, it is necessary to install an additional water filter. This will increase the service life of the apparatus up to 10-12 years. Not all consumers are attracted by this solution - they have to regularly change cartridges. Many users also do not want to take a bath in water that has passed through a magnetic filter.

Advantages

Despite the serious disadvantages of Junkers water heaters, they are in demand in the domestic market, as they offer potential buyers a large list of advantages:

1. Adaptation to domestic gas pipeline systems. In the Russian network, the pressure is 13 mbar, in Europe - 20 mbar.
2. Work at water pressure from 0.1 atm.
3. High productivity - water is heated at a rate of 11-17 l / min.
4. There is a flame modulation system - the power automatically changes, ensuring the stability of the temperature of the heated liquid.
5. Reliable security system.
6. Reasonable price.
7. The warranty is 1 year. The service life is 10-13 years.

How much are? The price of the Junkers model depends on the size - all other characteristics of the models are the same. The manufacturer offers two versions: mini and standard. The cost is from 7,000 to 11,000 rubles.

How to choose?

The main difference in the Junkers models is the ignition method. Water heaters have not been kindled with matches for a long time, there are more perfect ways to get fire:

1. Piezo ignition is used in P series devices - the most popular option. The device turns on at the touch of a button. Such versions have another important plus - you can set the water temperature. The igniter burns constantly.
2. In heaters of the "B" series, electric ignition is provided - in this case, the device ignites from the batteries. This option is more expensive, but gas is also consumed more economically - you do not need a constantly burning igniter. The device turns on automatically when the coolant starts to move. These versions allow you to save fuel and comfortably use the device.
3. The devices of the "G" series for ignition use the Hydro Power technology - a special generator, there is no burning igniter.

Security

Gas is a source of increased danger. Gas equipment, having a multi-stage safety system, prevents possible emergency situations... All processes are controlled by automation, which, at the slightest hint of a problem, will prevent danger and block the flow of gas. The German speakers provide protection:

• from the extinction of the fire;
• from lack of traction;
• from reverse thrust;
• from overheating.

Model overview

BOSCH Therm 4000 O WR 10-2 B (B series)

This model provides electric ignition with two batteries, automatic start, reliable system security:

• traction controller;
• ionization flame adjustment;
• safety valve.

Water pressure and temperature are set taking into account the flow in the pipes. There is a self-diagnosis with fault indication. According to consumer reviews, this model has been serving well for 10 years or more. The cost is about 18,000 rubles. Management is mechanical. Specifications:

WR 10-2P ("P" series)

This device uses a piezo ignition, the igniter is always on. Separate setting of water pressure and flow. The WR10-P, 13-P and 15-P versions have a thermoelectric device that controls the combustion intensity. Copper radiator is installed, there is no tin and lead in the alloy. Convenient control panel. There is an indication of the state of the gas burner device. The piezo ignition button is at the bottom of the device. Water flow and power are regulated separately. The burner is made of of stainless steel... Water reinforcement material - glass fiber reinforced polyamide. The cost is 13,000 rubles. The body color is white. Specifications:

WR 15-G ("G" series)

This ignition device is equipped with a hydrodynamic generator using the Hydro Power technology. It works at a pressure of 0.35 atm. Models of the "G" series can operate on 3 points of water intake. The manufacturer offers modifications: 10-G, 13-G and 15-G. Characteristics of the WR 15-G model:

Express instruction manual

After the installation of the equipment, carried out by specialists, the buyer of the gas water heater should read the instructions. The service life of the device depends on the correct operation. Rules for the user:

• Installation and maintenance is a professional business.
• Periodic cleaning of the igniter and radiator is required.
• It is undesirable to install very high fever heating - this contributes to the accelerated formation of scale.
• If the water is very hard, the device needs a special device to prevent the formation of limescale.

What are the problems?

More than half of all breakdowns occur due to violation of operating rules. All other faults are associated with problems in the electrical network, poor water quality and corrosion. If a factory defect is found, the device is sent to service center to fix the problem for free. Paid repairs cost about 1000-2000 rubles. It is more profitable to take the water heater to the service, since calling the master will cost more. The most common malfunctions:

1. The device cannot be ignited. The igniter lights up and goes out after a couple of seconds. The reason is a breakdown of a thermocouple, valve or sensor of combustion products.
2. The water is not heated. The probable cause is a breakdown of the heat exchanger. It may have built up a lot of scale.
3. The device makes noise and overheats. The reasons are the same as in the previous paragraph.
4. Loss of water. Reasons - the heat exchanger is damaged or it's time to change the oil seal.
5. Claps are heard during operation. The reason can be either too high or too little gas pressure. In any case, professional cleaning and adjustment is required.
6. Gas smell. This problem needs to be taken into account especially carefully. The first step is to close the gas valve and immediately ventilate the room, then call the gas service.

To fix the problem yourself, you need:

• establish the exact cause of the breakdown;
• buy original spare parts;
• prepare the equipment needed for the repair;
• study the rules for eliminating a specific malfunction and clearly follow the instructions of specialists.

Before turning on the Junkers column after replacing a faulty part, make sure that the fasteners are firmly fixed - gas leakage must be excluded. Self repair possible if you have experience and knowledge of the design and operation of the equipment. Use only original spare parts. The purchase of new hydraulic fittings will cost 7,000 rubles, the pilot will have to pay 500 rubles, and the thrust sensor - about 1,000 rubles. The cost of an electronic ignition device is 5,500 rubles.

Dismantling the Junkers gas water heater

To repair a unit, perform a maintenance cleaning or replace a part, you need to disassemble the device in parts. The disassembly procedure is as follows:

• Remove the handle located on the water block. Set the gas regulator to the central position, unscrew the self-tapping screws - they are located at the bottom of the case. On "Junkers", instead of self-tapping screws, there may be clips. The housing can now be removed.
• Unscrew the self-tapping screws securing the flue gas hood to the body. Then - screws from the strip screwed to the cap - it is needed to fix the heat exchanger.
• Sequentially remove the traction and temperature sensors, disconnect the wires from them. The columns "Bosch" and "Junkers" have a difference: for the former, the wires from the draft sensor can be easily removed, for the latter, they are fixed by soldering and cannot be removed.
• Detach the cap from the heat exchanger and the housing and remove it. Be careful when removing the pipes. The pipes have rubber seals- when assembling, it is advisable to replace them with new ones, since they tend to age and dry out.
• Disconnect the wick tube from the burner.
• To remove the burner, you need to unscrew the self-tapping screws and, pressing the thermocouple with a screwdriver, remove it from the burner body.

The Junkers company existed until 1932. From that moment the company was bought out by the Bosch Gruppe, which, however, did not affect the name of the water heaters produced by the division of the main office.

Junkers flow-through gas columns are produced in several modifications, differing in the principle of ignition, as well as in the type of combustion chamber. Instantaneous boilers operating with an ignition burner are popular among the domestic consumer. The average service life of a Junkers column is over 15 years.

Junkers speakers

The Junkers brand is considered to be synonymous with quality and reliability all over the world. The speakers are distinguished by a well thought-out internal arrangement and design. Domestic consumers are offered water heaters of the following type:

• Semi-automatic- the company began to produce speakers back in 1968. The pilot burner is used during operation. Ignition is carried out using a piezoelectric element. The main burner turns on when the DHW tap is opened.
• Automatic - run on batteries or a hydrogenerator. The series includes simple Junkers gas water heaters with an open combustion chamber, as well as multifunctional models with modulated power. The capacity of the burner varies depending on the water pressure.

In the internal structure of Junkers gas flow columns are used exclusively quality materials... All water heaters are subject to mandatory testing and certification.

More information about technical characteristics Junkers columns can be found from the following table:

Specifications	Column model Junkers
Power and flow of water
Max. nominal thermal power Pn (kW)
Min. rated heating power Pmin (kW)
Heat output (adjustment range) (kW)
Permissible gas supply pressure
Natural gas H G20 (mbar)
Liquid gas (butane / propane) G30 / G31 (mbar)
Gas consumption
Natural gas H G20 (m³ / h)
Liquid gas (butane / propane) G30 / G31 (kg / h)
Number of nozzles
Hot water
Max. admissible delivery head pw (bar)
Water volume switch in extreme right position
Temperature rise (° C)
Flow range (l / min)
Min. working pressure pwmin (bar)
Water volume switch in the extreme left position
Temperature rise (° C)
Flow range (l / min)
Specifications flue gas
Required draft (mbar)
Flue gas flow mass (g / s)
Temperature (° C)

The labeling of the water heater indicates detailed information regarding the principle of operation and internal device... To understand abbreviations, a table with decoding of designations will help:

• W - Gas water heater
• R - Power regulator
• 10 - Max. water consumption (l / min)
• –2 - Version 2
• P - Piezoelectric ignition
• B - Electronic system ignition on batteries (1.5 V)
• G - Electronic system of ignition from a hydrogenerator
• 23 - Number of designation of work on natural gas H
• 31 - Number of designation of work on liquefied gas
• S .... - Country code

Installation of a Junkers instantaneous boiler

The operating instructions contain detailed plan connecting the water heater. In particular, the following is stipulated:

Gas pressure adjustment table
			Natural gas H	Butane / Propane
	Injector ID number		for readjustment to 20 mbar
			for readjustment to 20 mbar
			for readjustment to 20 mbar
	Connection pressure (mbar)
	Max. pressure upstream of the nozzle (mbar)
	Min. pressure upstream of the nozzle (mbar)

After connecting instantaneous water heater in the passport, a mark is put into operation. From this moment on, the Junkers column is put on warranty service.

How to light a Junkers gas flow column

Overwhelmingly water heaters Junkers offered to domestic buyers operate in a semi-automatic mode. Semi-automatic ignition gas boiler is carried out like this:

• on the front panel of the water heater there is a valve that opens the gas supply;
• the button is clamped and the wick is ignited with the help of a piezoelectric element;
• the gas valve is left clamped for another 20-30 seconds;
• now the button is released, the flame on the burner should continue to burn.

The pilot burner remains on throughout the day. When you open a hot water tap, the boiler will turn on automatically. The gas column is adjusted on its own, using two regulators-knobs: changing the pressure of gas and water.

How to clean a Junkers column with your own hands

Any renovation work gas-consuming equipment must be carried out by a specialist who has the appropriate work permit. Cleaning the ignition burner and heat exchanger is a work that must not be carried out by yourself. Service is carried out at your own risk.

To clean your Junkers speaker at home, you will need to do the following:

• turn off the gas and water supply;
• remove the cover;
• disconnect the smoke receiver and water unit;
• pull out the heat exchanger.

The water heater radiator is flushed in warm water with the addition of any non-abrasive detergent with a stiff, long-bristled brush. You can clean the wick and the main burner with a special awl. Clean each nozzle to remove carbon deposits.

Do-it-yourself repair of Junkers gas water heaters leads to the manufacturer's refusal to provide warranty service for the equipment.

Junkers columns - malfunctions and methods of their elimination

German water heaters rarely fail. With regular maintenance, the probability of breakdown is completely reduced to zero. The main malfunctions of the column are the attenuation of the wick and the main burner, failure of the membrane, the water unit. The described breakdowns are associated with the poor quality of water and gas.

A description of breakdowns and troubleshooting methods for Junkers geysers is given in the table:

Malfunction		Elimination
The ignition flame was extinguished again. The pilot flame only ignites after a few attempts. The ignition flame is yellow.	The ignition burner is blocked.	Clear. *
The ignition flame is extinguished when the hot water tap is opened. The hot water temperature is insufficient, the flame is weak.	Insufficient gas supply.	Check the pressure reducer and replace it if it is not suitable or damaged. Check if the gas (butane) cylinders freeze while the device is in operation. If the cylinders freeze, place them in a less cold place.
The water temperature is too low.		Check the position of the power regulator and set it to a higher power.
The burner switches off while the appliance is running.	Temperature limiter tripped. The traction control device has been triggered.	Switch on the device again after 10 minutes. If the fault reappears, call a specialist. Ventilate the room. Switch on the device again after 10 minutes. If the fault reappears, call a specialist.
Reduced water flow.	Insufficient water pressure. Water taps or faucets are dirty. The water fittings are clogged. Clogged (covered limescale) heat exchanger.	Check and fix. * Check and clean. Clean filter. * Clean and, if necessary, remove limescale. *
* can only be done by a service and repair technician