Scheme and structure of the gas column. Heating systems for country and country houses. Boilers, geysers, water heaters - Repair, service, operation. Recommendations for installation and installation Installation of a water heater vpg 18 1

The Neva 4511 household gas water heater (HSV-18 water heater) is designed to provide hot water apartments, country houses. it compact model with digital display, reliable and easy to maintain, equipped with a complete set of security systems.

Designation of the water heater VPG-18-223-V11-UHL 4.2, where:

AT - water heating apparatus,
P - flowing;
G - gas;
18 - nominal heat output, kW;
223 - the device runs on natural and liquefied gases;
B11 - removal of combustion products through the chimney;
UHL 4.2 - climatic version.

Advantages of the gas column Neva 4511

It is intended for fast heating of water;

Operates at low water pressure (0.10 bar)

Automatic electronic ignition;

Compact overall dimensions;

Compact 2-tier heat exchanger;

Water-cooled combustion chamber;

Modern security systems;

Built-in temperature indicator;

1-2 tapping points;

Specifications

Common parameters

Rated thermal power, kW - 21

Productivity, l/min - 11

Gas pressure (natural / liquefied) - 1.3 / 2.9 kPa

Nominal gas consumption (natural/liquefied), m3/hour - 2.2/0.8

Minimum water pressure - 30 kPa

Maximum water pressure, kPa - 1000

Type of communication supply - Lower

Inlet pipe diameter, mm - 19.17

Chimney diameter, mm - 122.6

Water heater control functions VPG-18

Management - Mechanical

Functions - Flame adjustment, Water flow adjustment, Auto ignition

Indication - Display

Indicators - Temperature indication

Operating parameters

Rated heat output - 18 kW.

Coefficient useful action- not less than 84%.

Gas group - 2nd; H / 3rd; B/P.

Mass flow rate of combustion products of natural / liquefied gas at rated heat output - 7.4 / 8.0 g/s.

Type of ignition of the device - electronic.

Device dimensions, Dimensions (WxHxD), mm - 290 x 565 x 221 mm

Weight, kg - 10

Geyser Neva 4511 wall type (see Fig. 1) has rectangular shape formed by a removable lining 4.

On the front side linings are located: water flow adjustment knob 1, gas flow adjustment knob 2, water temperature display 3 and viewing window 5 for observing the burner flame. All main elements are mounted on the rear wall 22 (see Fig. 2).

Picture 1. Appearance and dimensions

1 - water flow adjustment knob; 2 - gas flow adjustment knob; 3 – water temperature display; 4 - facing; 5 - viewing window; 6 - supply fitting cold water, thread G 1/2; 7 - gas supply fitting, thread G 1/2; 8 - outlet fitting hot water, thread G 1/2; 9 - branch pipe of the gas outlet device; 10 - mounting holes.

Figure 2. View of the gas column Neva 4511 without a casing

1 - water flow regulator; 2 – gas flow regulator; 3 - plate; 4 - water-gas unit; 5 - burner; 6 - fitting for supplying cold water; 7 - gas supply fitting; 8 - hot water outlet; 9 - gas outlet device; 10 - candle; 11 – flame presence sensor; 12 - heat exchanger; 13 - valve
electromagnetic; 14 - battery compartment; 15 - electronic control unit; 16 - thermal relay (traction sensor); 17 – microswitch (water flow sensor); 18 – water temperature sensor; 19 - thermal relay (water overheating sensor); 20 - plug for draining water; 21 - fitting for measuring gas pressure; 22- back wall; 23 - screws for fastening the cladding.

Purpose of the main components and parts of the gas column Neva 4511

The water-gas unit 4 is designed to control the gas supply to the burner, adjust the water flow and consists of water and gas units (the design of the unit provides gas access to the burner only if there is a water flow);

Burner 5 is designed to create and supply an air-gas mixture to the place of combustion;

The exhaust device 9 is designed to remove combustion products into the chimney;

Candle 10 is designed to create a spark discharge to ignite the burner;

The flame presence sensor 11 provides control of the burner;

The heat exchanger 12 ensures the transfer of the heat obtained by burning the gas to the water flowing through its pipes;

Thermal relay 16 (draft sensor) is designed to turn off the device in the absence of draft in the chimney;

The water temperature sensor 18 is designed to determine the water temperature at the outlet of the apparatus;

Thermal relay 19 (water overheating sensor) is designed to turn off Neva 4511 when water is heated above 90°C;

Plug 20 is used to drain water from the water circuit of the device to prevent it from freezing; the safety valve built into the plug is designed to protect the water circuit of the water heater from high blood pressure water.

The working diagram of the water heater VPG-18 is shown in Figure 3.

When water begins to flow through the water unit 22 (see Fig. 3) with a flow rate of at least 2.5 l / min, the gas valve 30 opens with the membrane rod 25 and the contacts of the microswitch 17 close, after which the control unit 15 opens the solenoid valve 13 and begins to flow current pulses high voltage per candle 10.

Burner 5 is ignited by spark discharges between the spark plug electrode and the nozzle of the burner section. Further, the burner operation is controlled by the flame presence sensor 11.

The water flow regulator 1 regulates the amount and water temperature coming out of the machine: turning the knob counterclockwise increases the flow rate and lowers the water temperature; turning the knob clockwise decreases the flow and increases the water temperature.

The position of the regulator also determines the water flow at which the machine is switched on.

The gas flow regulator 2 adjusts the amount of gas entering the burner in order to obtain the required water temperature at its set flow rate: turning the regulator counterclockwise increases the gas flow and water temperature; turning the knob clockwise reduces gas flow and water temperature.

When the flow of water stops or when its flow rate decreases to less than 2.5 l / min, the contacts of the microswitch 17 open and valves 13 and 30 close. The burner goes out.

Figure 3. Scheme Neva 4511

1 - water flow regulator; 2 – gas flow regulator; 3 – water temperature display; 4 - water-gas unit; 5 - burner; 6 - cold water inlet; 7 - gas inlet; 8 - hot water outlet; 9 - gas outlet device; 10 - candle; 11 – flame presence sensor; 12 - heat exchanger; 13 - solenoid valve; 14 - battery compartment; 15 - electronic control unit; 16 - thermal relay (thrust sensor); 17 - microswitch; 18 – water temperature sensor; 19 - thermal relay (water overheating sensor); 20 - plug for draining water; 21 - fitting for measuring gas pressure; 22 - water node; 23 - water purification filter; 24 - water flow limiter; 25 - membrane; 26 - Venturi fitting; 27 - water outlet to the heat exchanger; 28 - gas unit; 29 - gas purification filter; 30 - gas valve; 31 - gas outlet to the burner.

Maintenance and replacement of parts of the gas column Neva 4511

Operations to repair the Neva 4511 gas column (HSV-18 water heater), associated with the dismantling of its gas or water communications, must be performed only after it is completely turned off (the taps on the water and gas lines in front of the device must be closed).

When disassembling and assembling water and gas communications, it is recommended to install new seals. After replacing the components and parts, it is necessary to assemble in the reverse order.

Fig.A. Scheme of the water heater VPG-18

1 - Frame, 2 - Heat exchanger, 3 - Gas burner (10 sections), 4 - Electronic control unit, 5 - Water-gas unit, 6 - Pipe (from the water unit to the heat exchanger), 7 - Pipe (hot water outlet), 8 - Facing, 9 - Overlay, 10 - Handle, 11 - Battery compartment, 12 - Flame sensor, 13 - Display, 14 - Thermal relay, 15 - Candle, 16 - Water temperature sensor, 17 - Strip, 18 - Burner nozzle, 19 - Adapter, 20 - Bracket, 21 - Microswitch (water flow sensor), 22 - O-ring, 23 - Bracket, 24 - Strap, 25 - Clamp, 26 - Wire, 27 - Solenoid valve, 28 - Gasket (D19×d10×2 ), 29 - Gasket (D28×d17×1.5), 30 - Ring (D15×2.5), 31 - Water unit

Removing the lining of the gas column Neva 4511

Remove handles 10 by pulling them towards you.

Unscrew two self-tapping screws in the lower part of the product, fastening the facing 8 with the frame bracket 1.

Disconnect the wires connecting the display to the electronic control unit and to the water temperature sensor.

Pull the lower part of the lining towards you, slide it up and remove it from the device.

Burner replacement

Remove lining.

Loosen the union nut of the burner manifold 3.

Unscrew the two screws securing the burner 3 to the frame brackets 1 and remove the burner.

Install a new burner.

Check for tightness of the joints that have been disassembled on the operating apparatus by soaping.

Check the operation of the new burner on a running machine.

Exchanger replacement

Unscrew the two self-tapping screws securing the bar 17 to the gas outlet device and remove it.

Unscrew the two union nuts from the fittings of heat exchanger 2 and remove it.

Install a new heat exchanger.

Check for tightness the joints that were disassembled on the operating apparatus by washing for gas and visual inspection for water.

Replacing the battery compartment

Remove lining.

Disconnect the two conductors from the battery compartment 11.

Open the battery compartment cover.

Unscrew the two screws securing the battery compartment to the bracket and remove it.

Install a new battery compartment.

Fig.B. Knot water-gas water heater Neva VPG-18 disassembled

21 - Microswitch (water flow sensor), 27 - Solenoid valve, 31 - Water unit, 32 - Spring, 33 - Gas valve, 34 - Sleeve, 35 - Spring, 36 - Gasket, 37 - Ring D2.8×1.9 , 38 - Ring D8.8×1.9, 39 - Ring 17.4×2.65, 40 - Ring D27.5×2.65, 41 - Ring D29.5×1.8

Replacement of the water-gas unit (UVG)

Disconnect three wires from solenoid valve 27.

Disconnect the gas and water supply to the device.

Disconnect the adapter 19 from the water-gas unit 5.

Unscrew the four screws securing the water-gas unit to the frame bracket 1 and remove the water-gas unit.

Install a new water and gas unit.

After installing and connecting the water-gas unit, check the gas and water connections for leaks. Leaks of water and gas are not allowed.

Check the operation of the device with a new water-gas unit.

Replacing the valve of the electromagnetic unit of the water-gas

Remove lining.

Disconnect three wires from the solenoid valve 27 of the water-gas unit 5.

Unscrew the two screws securing the solenoid valve and remove it.

Install a new solenoid valve.

Check the performance of the device with a new solenoid valve.

Rice. B. Neva 4511 water geyser assembly

42 - Venturi fitting, 43 - Water flow regulator, 44 - Filter, 45 - Ring D7.8×2, 46 - Ring D11×1.5, 47 - Ring D11.4×d7.8, 48 - Ring D16.5 ×2.2, 49 - Ring D20.5×1.8, 50 - Membrane with a plate (water unit repair kit).

Replacing the water unit of the UVG

Disconnect the water supply to the water-gas unit.

Disconnect the nut of the cold water outlet pipe to the heat exchanger 2 from the water unit 31.

Unscrew the two screws securing the water unit 31 to the body of the water-gas unit.

Unscrew the two screws securing the water unit 31 to the frame bracket 1 and remove it.

Install a new water unit.

Check connections for tightness. Water leakage is not allowed.

Check the operation of the device with a new water unit.

Replacing the thermostat (water overheating sensor)

Remove the cladding

Disconnect the two wires from the thermostat 14 on the hot water outlet pipe 7.

Unscrew the two screws securing the thermal relay with clamp 25 and remove it.

Check the operation of the device with a new thermostat.

Replacing the water temperature sensor

Remove the cladding

Disconnect the two wires from the temperature display 13.

Unscrew the water temperature sensor 16 from the hot water outlet pipe 7.

Install a new sensor.

Check the operation of the geyser with a new sensor by comparing the water temperature readings on the display and the thermometer readings when measuring the hot water temperature at the outlet of the device.

Replacement of the cold water supply pipe to the heat exchanger

Unscrew the union nut from the fitting of the water unit.

Unscrew the union nut from the pipe fitting 6 of the heat exchanger 2 and remove the pipe together with gaskets 28.

Install new pipe with new gaskets.

Replacing the hot water outlet pipe from the heat exchanger

Disconnect the wires and remove the thermal switch 14 by unscrewing the clamp screws 25.

Unscrew the hot water temperature sensor 16.

Unscrew the two screws securing the fitting of the hot water outlet pipe 7 to the bracket on the rear wall of the frame 1.

Unscrew pipe nut 7 from heat exchanger pipe fitting 2 and remove pipe.

Install new pipe.

Check the operation of the device. Water leakage is not allowed.

Replacing the thermal relay (draft sensor)

Disconnect wires from thermostat 14.

Remove the bracket 23 from the thermal relay 14 with the GOU by depressing the latch on the bracket.

Unscrew the two screws securing the thermal relay 14 to the bracket 23 and remove the thermal relay.

Install a new thermostat.

Check the operation of the device with a new thermal relay.

Replacing the electronic control unit

Disconnect all external connecting wires and connectors of the electronic control unit 4.

Unscrew the two screws securing the electronic control unit to the bracket on the rear wall of the frame 1 and remove it.

Install a new electronic control unit.

Check the operation of the VPG-18 water heater with a new electronic unit.

Replacing the spark plug or flame sensor

Disconnect the wires from the spark plug 12 and from the flame sensor 15.

Unscrew the two screws securing the bar 24 to the bracket 20 and remove it.

Replace spark plug or flame sensor.

Check the operation of the device with new candle or a new flame detector.

Replacing the microswitch (water flow sensor)

Remove lining.

Disconnect two wires from microswitch 21.

Unscrew the two screws securing the microswitch to the UVG and remove it.

Install a new microswitch.

Check the operation of the device with a new microswitch.

Overview of the gas column Neva 4511 VPG-18

The household gas water heater Neva 4511, 4513 (water heater VPG-18) is designed to provide apartments and country houses with hot water. It is a compact model with a digital display, reliable and easy to maintain, equipped with a complete set of security systems.

Designation of the water heater VPG-18-223-V11-UHL 4.2, where:

B - water heater
P - flowing;
G - gas;
18 - nominal heat output, kW;
223 - the device runs on natural and liquefied gases;
B11 - removal of combustion products through the chimney;
UHL 4.2 - climatic version.

Advantages of the gas column Neva 4511, 4513

It is intended for fast heating of water;

Operates at low water pressure (0.10 bar)

Automatic electronic ignition;

Compact overall dimensions;

Compact 2-tier heat exchanger;

Water-cooled combustion chamber;

Modern security systems;

Built-in temperature indicator;

1-2 tapping points;

Technical characteristics of the geyser Neva 4511

Common parameters

Rated thermal power, kW - 21

Productivity, l/min - 11

Gas pressure (natural / liquefied) - 1.3 / 2.9 kPa

Nominal gas consumption (natural/liquefied), m3/hour - 2.2/0.8

Minimum water pressure - 30 kPa

Maximum water pressure, kPa - 1000

Type of communication supply - Lower

Inlet pipe diameter, mm - 19.17

Chimney diameter, mm - 122.6

Water heater control functions VPG-18

Management - Mechanical

Functions - Flame adjustment, Water flow adjustment, Auto ignition

Indication - Display

Indicators - Temperature indication

Operating parameters

Rated heat output - 18 kW.

Efficiency - not less than 84%.

Gas group - 2nd; H / 3rd; B/P.

Mass flow rate of combustion products of natural / liquefied gas at rated thermal power - 7.4 / 8.0 g / s.

Type of ignition of the device - electronic.

Device dimensions, Dimensions (WxHxD), mm - 290 x 565 x 221 mm

Weight, kg - 10

Geyser Neva 4511, 4513 wall type (see Fig. 1) has a rectangular shape formed by a removable lining 4.

On the front side of the cladding are: water flow adjustment knob 1, gas flow adjustment knob 2, water temperature display 3 and viewing window 5 for observing the burner flame. All main elements are mounted on the rear wall 22 (see Fig. 2).

Figure 1. Appearance and dimensions of the gas column Neva 4511, 4513

1 - water flow adjustment knob; 2 - gas flow adjustment knob; 3 – water temperature display; 4 - lining; 5 - viewing window; 6 - cold water inlet, thread G 1/2; 7 - gas supply fitting, thread G 1/2; 8 - hot water outlet, thread G 1/2; 9 - branch pipe of the gas outlet device; 10 - mounting holes.

Figure 2. View of the gas column Neva 4511, 4513 without a casing

1 - water flow regulator; 2 – gas flow regulator; 3 - plate; 4 - water-gas unit; 5 - burner; 6 - fitting for supplying cold water; 7 - gas supply fitting; 8 - hot water outlet; 9 - gas outlet device; 10 - candle; 11 – flame presence sensor; 12 - heat exchanger; 13 - valve
electromagnetic; 14 - battery compartment; 15 - electronic control unit; 16 - thermal relay (traction sensor); 17 – microswitch (water flow sensor); 18 – water temperature sensor; 19 - thermal relay (water overheating sensor); 20 - plug for draining water; 21 - fitting for measuring gas pressure; 22 - rear wall; 23 - screws for fastening the cladding.

The purpose of the main nodes and constituent parts geyser Neva 4511, 4513

The water-gas unit 4 is designed to control the gas supply to the burner, adjust the water flow and consists of water and gas units (the design of the unit provides gas access to the burner only if there is a water flow);

Burner 5 is designed to create and supply an air-gas mixture to the place of combustion;

The exhaust device 9 is designed to remove combustion products into the chimney;

Candle 10 is designed to create a spark discharge to ignite the burner;

The flame presence sensor 11 provides control of the burner;

The heat exchanger 12 ensures the transfer of the heat obtained by burning the gas to the water flowing through its pipes;

Thermal relay 16 (draft sensor) is designed to turn off the device in the absence of draft in the chimney;

The water temperature sensor 18 is designed to determine the water temperature at the outlet of the apparatus;

Thermal relay 19 (water overheating sensor) is designed to turn off the gas column Neva 4511, 4513 when the water is heated above 90 ° C;

Plug 20 is used to drain water from the water circuit of the device to prevent it from freezing; The safety valve built into the plug is designed to protect the water heater circuit from high water pressure.

The working diagram of the water heater VPG-18 is shown in Figure 3.

When water begins to flow through the water unit 22 (see Fig. 3) with a flow rate of at least 2.5 l / min, the gas valve 30 opens with the membrane rod 25 and the contacts of the microswitch 17 close, after which the control unit 15 opens the solenoid valve 13 and begins to flow high voltage current pulses to spark plug 10.

Burner 5 is ignited by spark discharges between the spark plug electrode and the nozzle of the burner section. Further, the burner operation is controlled by the flame presence sensor 11.

The water flow regulator 1 regulates the amount and temperature of the water leaving the machine: turning the regulator counterclockwise increases the flow and reduces the water temperature; turning the knob clockwise decreases the flow and increases the water temperature.

The position of the regulator also determines the water flow at which the machine is switched on.

The gas flow regulator 2 adjusts the amount of gas entering the burner in order to obtain the required water temperature at its set flow rate: turning the regulator counterclockwise increases the gas flow and water temperature; turning the knob clockwise reduces gas flow and water temperature.

When the flow of water stops or when its flow rate decreases to less than 2.5 l / min, the contacts of the microswitch 17 open and valves 13 and 30 close. The burner goes out.

R Figure 3. Scheme of the gas column Neva 4511, 4513

1 - water flow regulator; 2 – gas flow regulator; 3 – water temperature display; 4 - water-gas unit; 5 - burner; 6 - cold water inlet; 7 - gas inlet; 8 - hot water outlet; 9 - gas outlet device; 10 - candle; 11 – flame presence sensor; 12 - heat exchanger; 13 - solenoid valve; 14 - battery compartment; 15 - electronic control unit; 16 - thermal relay (thrust sensor); 17 - microswitch; 18 – water temperature sensor; 19 - thermal relay (water overheating sensor); 20 - plug for draining water; 21 - fitting for measuring gas pressure; 22 - water node; 23 - water purification filter; 24 - water flow limiter; 25 - membrane; 26 - Venturi fitting; 27 - water outlet to the heat exchanger; 28 - gas unit; 29 - gas purification filter; 30 - gas valve; 31 - gas outlet to the burner.

__________________________________________________________________________

__________________________________________________________________________

__________________________________________________________________________

_______________________________________________________________________________

__________________________________________________________________________

Despite the fact that today housing and communal services networks are being modernized everywhere, the quality of the services they provide remains at a low level. This is especially true for hot water supply. To solve this problem once and for all, you should purchase a gas water heater. However, you first need to decide which model suits you better than the others.

Modern manufacturers offer these devices in a wide range. They have certain operational and technical specifications. Columns can be classified into flow and storage. As for the former, they are smaller in size, which allows them to be installed even in small room. Accumulative gas water heaters can hold from 50 to 500 liters of water.

The container in the design has effective thermal insulation, which allows you to keep the high temperature of the water for a long time, it helps to save energy. If you still cannot decide which gas column to choose, then you can pay attention to the equipment under the Astra brand, which will be discussed below. Such devices are good not only because they are manufactured in Russia, which means they have an acceptable cost, but also because they are maintainable. This indicates that in the event of a breakdown with a malfunction, you can deal with it yourself.

Reviews about geysers of the brand "Astra"

If you want to save twice, then you should purchase a water heater domestic production. These are just geysers"Aster". Consumers choose them for an affordable cost, but this plus cannot be called the only one. Units operate on liquefied and natural gas. Buyers also like high level safety taken care of by the manufacturer. After all, if the pilot burner goes out, then the supply of water for heating will stop, this also applies automatic feeding gas.

Such water heaters act as optimal solution for domestic use. Customers also like the ease of operation and maintenance. You don't have to spend money on it. The appearance of the design is attractive, the body has a modern and stylish design. Any geyser of the manufacturer can be entered into the interior of the room. Geysers "Astra", according to buyers, are offered for sale in a wide range. That is why you can choose the most best option, which will meet the requirements and preferences of the consumer.

Specifications HSV 8910-00.02

If you are interested in Astra gas water heaters, then you should consider several models at once so that you have the opportunity to make right choice. Among others, the HSV 8910-00.02 model, which is manufactured in Russia, is on the market. Its power can reach 21 kW. The design is equipped with an open combustion chamber and manual ignition.

Productivity on hot water supply makes 12 l/min. The supply water may have a temperature that varies from 35 to 60 °C. During operation, the column consumes natural gas in a volume that is equal to 2.3 m 3 / h. The maximum water pressure can be 6 bar. The lowest operating water pressure is equivalent to 0.5 bar.

Gas connection is carried out using communications that have the following parameters: 3/4 inch. Hot and cold water connections are made using pipes with a diameter of 1/2 inch. The diameter of the chimney reaches 120 mm. If you are considering Astra gas water heaters, then you should definitely be interested in their dimensions. As for the model described in the section, its dimensions are 700x372x230 mm. The equipment weighs 15 kg.

Specifications column brand HSV 8910-08.02

In order to make the right choice, several models must be considered. Among others, the HSV 8910-08.02 variant is presented on the market, the power of which reaches 18 kW. The design has an open combustion chamber and manual view ignition. The productivity of this model is slightly less and amounts to 10 l / min. The temperature of the supplied water remains at the same level, but the fuel consumption will be somewhat less and will be 2 m 3 / h. Minimum and maximum operating pressure water remains the same. Connection is carried out with the same parameters. The diameter of the chimney remains the same. The body of the structure has identical parameters.

Technical characteristics of the geyser brand HSV 8910-15

This Astra 8910 gas water heater has a power of 18 kW. Electric ignition is carried out from batteries. The water capacity is 10 l/min. Consumption natural gas is 2 m 3 / h. The diameter of the chimney in this case is somewhat different, it is equivalent to 135 mm. On the this product a two-year warranty is provided.

Technical characteristics of the geyser brand HSV 8910-16

The power of this equipment reaches 21 kW. Electric ignition is carried out from batteries. The hot water capacity is slightly higher, it is 12 l/min. The consumption of natural gas remains the same as in the first of the models described above, this parameter reaches 2.3 m 3 / h. The chimney diameter is 135 mm. The equipment weighs 15 kg.

Why you should choose Astra gas water heaters: reviews

Among the main advantages of the equipment described in the article, consumers distinguish:

• lack of extra functionality;
• reliability;
• the ability to easily configure the operation of the equipment;
• high performance;
• simple device;
• ease of operation.

The equipment, according to consumers, is maintainable. All spare parts can be found in service workshops. Yes, and the column itself is quite cheap. Customers especially like the large combustion chambers, so the power of some models reaches 20 kW.

Traction adjustment for model 8910 is carried out independently. The thermostat in this embodiment is located below. The smoke exhaust track is wide enough, but the column regulator is located under the central fitting. The construction frame, according to property owners who have purchased such equipment for themselves, is very strong, so it can withstand any load.

The power supply has a protection system. Using special screws, you can easily adjust the fitting. The Astra geyser, the instruction manual for which is supplied in the kit, has, according to consumers, economical fuel consumption. The design has a high-quality pressure regulator. Traction can be checked very simply. Removal of combustion products occurs quickly. In matters of safety, the column outperforms other models.

Repair of a geyser brand "Astra"

Repair of the gas column "Astra" begins with shutting off the gas. The column may or may not be removed. The front part is dismantled with a screwdriver, but first you need to unscrew the bolts located on the sides. The first thing to check is the economizer, it is located behind the electrode. Removing the latter will be quite difficult. It is fixed with 4 bolts. Do not touch the heat exchanger.

When you repair individual components, it is important not to touch the fitting, it is used to measure pressure. If this part is damaged, then you will have to change the head. In order to remove the economizer, it is necessary to unscrew only two side bolts. The consumer may well carry out repairs with his own hands. The Astra geyser has contacts in the design that are often contaminated. If they have become unusable, then they need to be replaced. If the economizer does not work after replacement, then it will also have to be changed. These malfunctions are one of the main ones for Astra speakers.

If you encounter a problem when the Astra geyser does not light up, then this may indicate a lack of draft in the ventilation passage. It is very easy to check the tension. The geyser is turned off, and a burning match should be brought to the chimney outlet. If the flame is drawn into the chimney, then everything is in order - you can connect the column. Otherwise, the chimney should be cleaned. However, it is better to entrust this matter to a special master.

The Astra geyser, the malfunctions of which you should consider when operating this equipment, sometimes goes out immediately after ignition. In this case, the supply of cold water to the column should be adjusted. Do not try to dilute hot and cold water, this can cause the flame to die out.

Spare parts for gas water heater brand "Astra"

If you purchased the Astra 8910 gas water heater, spare parts for it may be needed during operation. You need to know what their value is. For example, a water unit will cost 1,600 rubles. The gas part costs 1,500 rubles. The magnetic stopper has more low price- 205 rubles. The membrane costs 25 rubles. The repair kit for the water part costs 155 rubles, and the adjusting unit - 55 rubles.

Conclusion

If you still do not know whether it is worth buying an Astra gas water heater, then you should consider its features in more detail. For example, copper heat exchanger all models have increased wall thickness. This ensures good heat transfer from heated gases to water, which allows saving. For more convenient operation, the manufacturer has equipped the design with a display with which you can determine the temperature of the heated water.

Gas water heaters presented on our Russian market heating equipment are divided into two categories, according to the method of heating the coolant: instantaneous heating running water coming from the central water supply, and heating water in a capacitive tank from 50 to 200 liters, with periodic replenishment during use. According to the principle of heating household water heaters divided: capacitive and flow.

Scheme of operation of a flow gas column.

Scheme instantaneous water heater : 1 - heater, 2 - igniter, 3 - gas outlet cap, 5 - coil, 6 - burner, 7 - block valve.

Household gas from the pipeline is supplied to the main burner of the column, (hereinafter referred to as the injection burner). After combustion of the gas, the product of carbon monoxide emission is discharged into ventilation duct at home, for removal to the atmosphere, its path lies through a copper heat exchanger. During the passage through the heat exchanger, the high temperature of carbon monoxide is transferred to the flowing through the tubes tap water. So that the column body is not subjected to strong heat, the heat exchanger fins create a fire chamber around the heating pad, which is cooled from the outside by the same running water.

The main working components of the geyser are: the main burner, a copper radiator, an automatic gas and water part, a gas outlet.

We develop the theme: Device and malfunctions of instant gas water heaters PROTON

To increase efficiency in work, gas water heaters have been constantly improved. The burner was mainly upgraded. Previously, Soviet gas water heaters KGI used a multi-nozzle burner with one and only gas supply. However, these burners performed poorly in operation, as they had a very low injection coefficient (up to 0.5), plus, they cannot be used when working on liquefied gas. Soon on gas HSV columns- 18 began to introduce a burner with a branched type gas supply (double). Low-pressure gas was supplied through a tee to two nozzles, which broke the flow and distributed it to two diffusers and further through distribution pipes for combustion.

Pipes for gas combustion are a metal box with numerous holes in the form of transverse slots. Gas-burner, equipped with this type of tubes, allowed the columns to work both on domestic natural gas and on liquefied gas. This burner had an injection coefficient of 0.7, which provided high heating and performance columns.

Scheme of operation of the gas-control system of the gas column.

In modern gas water heaters of domestic and foreign production, to control the work, functions have been introduced to protect the user from poisoning and the device itself from overheating. On the first Soviet columns, gas control was installed, which blocked the operation of the apparatus by sucking in an igniter instead of oxygen a large number of carbon monoxide. The igniter needs oxygen to burn. If the chimney is clogged, carbon monoxide accumulates around exhaust pipe. A suction tube is placed in this place (to this day, such a system is used in NEVA-3208 gas water heaters).

Over time, they began to implement automatic system control based on temperature readings near the chimney. Where a bimetallic sensor is placed instead of a tube (all modern speakers work according to this scheme). A thermocouple was placed in the zone of action of the pilot flame, which, when heated, became a sensor. driving force for solenoid valve. At one time, a solenoid valve controls the gas supply to the main burner.

Scheme and structure of the gas column.

The copper radiator serves to receive heat from the hot gas and transfer it to the water. The copper radiator of the column is also called the heat exchanger. The heat exchanger consists of two parts: a box - forming a fire chamber; heater - curved tubes with copper plates for receiving heat. The heat exchanger has two pipes: cold water inlet and hot water outlet to the taps. To heat up to the desired temperature, one circle of water around the heater is enough. The water receives all the heat through the tubes of the heat exchanger walls and carries it away to the consumer. The tubes get hot high temperature exhaust gases.

The gas water heater NEVA 3208 is convenient, simple and reliable. Despite the venerable age of most of the operated specimens, they quite regularly cope with their duties of heating water. But sometimes you want to clarify something in the instruction manual. And here comes the problem.

The original instructions are most often lost, and downloading the operating instructions on the Internet is Neva-3208 impossible. More modern columns Neva series 4000, 5000, Neva Lux 6000, boilers Neva Lux series 8000 - please, but there are no instructions for Neva 3208.

In the search, only fraudulent sites that require a number come across cell phone, but even there there is no instruction - one file name. This is easy to check by trying to find a file on such a site with a name that obviously does not exist - for example, " qwerrasdfgfgh-$%# [email protected]$ ". He will find it, and even say that it has been downloaded several thousand times! I hope that you do not fall for such tricks and do not enter your phone number on suspicious sites. And you can find the instruction manual for the gas column Neva-3208 here.

DEVICE WATER HEATING FLOW GAS HOUSEHOLD

NEVA-3208 GOST 19910-94

NEVA-3208-02 GOST 19910-94

OPERATION MANUAL 3208-00.000-02 RE

Dear buyer!

When purchasing the device, check the completeness and presentation of the device, and also require the trading organization to fill out coupons for warranty repairs

Before installing and operating the machine, you must carefully read the rules and requirements set forth in this instruction manual, compliance with which will ensure long-term trouble-free and safe work water heater.

Improper installation and operation may result in an accident or damage the machine.

1. GENERAL INSTRUCTIONS

1.1. Apparatus flow-through gas water heating household "NEVA-3208" (NEVA-3208-02) VPG-18-223-B11-R2 GOST 19910-94, hereinafter referred to as the "apparatus", is designed to heat water used for sanitary purposes (washing dishes , washing, bathing) in apartments, cottages, country houses.

1.2. The device is designed to operate on natural gas in accordance with GOST 5542-87 with a net calorific value of 35570+/-1780 kJ/m3 (8500+/-425 kcal/m3) or liquefied gas in accordance with GOST 20448-90 with a lower calorific value of 96250+/- 4810 kJ/m3 (23000+/-1150 kcal/m3).

When manufactured at the factory, the apparatus is configured for a specific type of gas, which is indicated on the label on the apparatus and in the “Certificate of Acceptance” section of this manual.

1.3. Installation, assembly, owner briefing, preventive maintenance, troubleshooting and repairs are carried out by gas operating organizations or other organizations licensed to this species activities. Section 13 must contain the mark and stamp of the organization that installed the apparatus.

1.4. Checking and cleaning the chimney, repairing and monitoring the water supply system are carried out by the owner of the device or the building management.

1.5. Responsibility for safe operation the device and for its maintenance in proper condition is the responsibility of its owner.

2. TECHNICAL DATA

2.1. Rated heat output 23.2 kW

2.2. Rated heat output 18.0 kW

2.3. Rated heat output of the pilot burner, not more than 0.35 kW

2.4 Rated pressure natural gas 1274 Pa (130 mm w.c.)

2.5 Nominal pressure of liquefied gas 2940 Pa (300 mm w.c.)

2.6. Nominal consumption of natural gas 2.35 cubic meters. m/hour.

2.6. Nominal consumption of liquefied gas 0.87 cubic meters. m/hour.

2.7. Efficiency not less than 80%

2.8. Supply water pressure for normal operation of the device 50 ... 600 kPa

2.9. Water consumption when heated by 40 degrees (at rated power) 6.45 l / min

2.10. The temperature of the gas combustion products is not less than 110 degrees

2.11. Vacuum in the chimney not less than 2.0 Pa (0.2 mm w.c.), not more than 30.0 Pa (3.0 mm w.c.)

2.12. Ignition of the device "NEVA-3208" piezoelectric, device "NEVA-3208-02" - with a match

2.13. dimensions apparatus: height 680 mm, depth 278 mm, width 390 mm

2.14. The weight of the device is not more than 20 kg

3. SCOPE OF DELIVERY

3208-00.000 Apparatus "Neva-3208", or "NEVA-3208-02" 1 pc.

3208-00.000-02 RE Operating manual 1 copy.

3208-06.300 Package 1 pc.

3208-00.001 Handle 1 pc.

Wall fixing elements 1 set

3103-00.014 Gasket 4 pcs.

3204-00.013 Sleeve 1 pc.

4. SAFETY INSTRUCTIONS

4.1. The room where the device is installed must be constantly ventilated.

4.2. To avoid fire, do not place or hang flammable substances or materials on or near the device.

4.3. After stopping the operation of the device, it is necessary to disconnect it from the gas supply source.

4.4. To prevent the unit from defrosting during winter time(when installed in unheated rooms) it is necessary to drain the water from it.

4.5. In order to avoid accidents and damage to the device, consumers are PROHIBITED:

a) independently install and start the device into operation;

b) allow children to use the device, as well as persons who are not familiar with this instruction manual;

c) operate the device on a gas that does not correspond to that specified in the plate on the device and the "Acceptance Certificate" of this manual;

d) close the grate or gap in the lower part of the door or wall, intended for the inflow of air necessary for the combustion of gas;

e) use the device in the absence of draft in the chimney;

e) use a faulty device;

g) independently disassemble and repair the device;

h) make changes to the design of the apparatus;

i) leave the working device unattended.

4.6. During normal operation of the apparatus and with a serviceable gas pipeline, the smell of gas should not be felt in the room.

If you smell gas in the room, you MUST:

a) immediately turn off the device;

b) close the gas valve located on the gas pipeline in front of the apparatus;

c) thoroughly ventilate the room;

d) immediately call the emergency service of the gas facilities by tel. 04.

Until the gas leak is eliminated, do not perform any work related to sparking: do not light a fire, do not turn on or off electrical appliances and electric lighting, do not smoke.

4.7. If abnormal operation of the device is detected, it is necessary to contact the gas management service and, until the malfunctions are eliminated, do not use the device.

4.8. Explosion or carbon monoxide poisoning or gas or carbon monoxide poisoning ( carbon monoxide) located in the products of incomplete combustion of gas.

The first signs of poisoning are: heaviness in the head, strong heartbeat, tinnitus, dizziness, general weakness, then nausea, vomiting, shortness of breath, impaired motor functions may appear. The victim may suddenly lose consciousness.

To provide first aid, you must: take the victim to fresh air, unbutton clothing that restricts breathing, give a sniff ammonia, cover warmly, but do not let fall asleep and call a doctor.

If there is no breathing, immediately remove the victim to warm room co fresh air and produce artificial respiration without stopping it until the arrival of the doctor.

5. DEVICE AND OPERATION OF THE DEVICE

5.1. Device device

5.1.1. The apparatus (Fig. 1) of the wall-mounted type has a rectangular shape formed by a removable lining 7.

5.1.2. All main elements of the device are mounted on a frame. On the front side of the cladding are: handle 2 for controlling the gas valve, button 3 for turning on the solenoid valve, viewing window 8 for observing the flame of the pilot and main burners.

5.1.3. The apparatus (Fig. 2) consists of a combustion chamber 1 (which includes a frame 3, a gas exhaust device 4 and a heat exchanger 2), a water-gas burner unit 5 (consisting of a main burner 6, an ignition burner 7, a gas cock 9, a water regulator 10, a valve electromagnetic 11) and tube 8, designed to turn off the water heater in the absence of draft in the chimney.

NOTE: Due to the fact that OJSC continues to work on further improvement of the design of the device, the purchased device may not fully match the description or image in the "Operation Manual" in individual elements.

5.2. Description of the device

5.2.1. The gas through the pipe 4 (Fig. 1) enters the solenoid valve 11 (Fig. 2), the button 3 (Fig. 1) of which is located to the right of the gas cock enable handle.

5.2.2. When the solenoid valve button is pressed and open” (to the “Ignition” position) (Fig. 3), the tap gas flows to the pilot burner. The thermocouple, heated by the flame of the pilot burner, transmits the EMF to the valve solenoid, which automatically holds the valve disc open and provides gas access to the gas cock.

5.2.3. When turning handle 2 (Fig. 1) clockwise, the gas valve 9 (Fig. 2) performs the sequence of switching on the pilot burner to the “Ignition” position (see Fig. 3), gas supply to the main burner in the “Apparatus on” position ( see Fig. 3) and regulates the amount of gas supplied to the main burner within the "High flame" - "Small flame" positions (see Fig. 3) to obtain the desired water temperature. In this case, the main burner lights up only when water flows through the device (when a hot water tap is opened).

5.2.4 Turning off the apparatus is done by turning the control knob counterclockwise to the stop, while the main and pilot burners are instantly extinguished. The electromagnetic plug valve will remain open until the thermocouple cools down (10...15 s).

5.2.5. To ensure smooth ignition of the main burner, the water regulator is provided with an ignition retarder, which acts as a throttle when water flows out of the supra-membrane cavity and slows down the upward movement of the membrane, and, consequently, the ignition speed of the main burner.

The device is equipped with safety devices that provide:

• gas access to the main burner only in the presence of a pilot flame and water flow
• shutting off the gas valve to the main burner in case the pilot burner goes out or the water flow stops,
• shutdown of the main and pilot burners in the absence of draft in the chimney.

1 - branch pipe, 2 - handle; 3 - button: 4 - gas supply pipe; 5 - hot water outlet pipe, 6 - cold water inlet pipe; 7 - facing, 8 - viewing window

Figure 1. Apparatus water-heating flowing gas household

1 - combustion chamber; 2 - heat exchanger; 3 - frame; 4 - gas outlet device; 5 - water gas burner block; 6 - main burner; 7 - ignition burner; 8 - thrust sensor tube; 9 - gas tap: 10 - water regulator; 11 - electromagnetic valve; 12 - thermocouple; 13 - piezo ignition (NEVA-3208); 14 - plate.

Figure 2. Apparatus water-heating flowing gas household (without cladding)

Figure 3. Positions of the gas cock control knob

6. INSTALLATION PROCEDURE

6.1. Installing the machine

6.1.1. The appliance must be installed in kitchens or other non-residential premises in accordance with the Gasification Project and SNiP 2.04.08.87

6.1.2. Installation and installation of the apparatus must be carried out by the operating organization of the gas facilities or other organizations licensed for this type of activity

6.1.3. The device is hung with holes (on the frame) on a special bracket mounted on the wall. Mounting holes of the apparatus are shown in Figure 4. It is recommended to install the apparatus in such a way that viewing window 8 (see Fig. 1) is at the level of the user's eyes.

6.1.4. Connecting dimensions of pipelines for gas supply, water supply and discharge, removal of combustion products through a chimney are shown in Figure 1

6.2. Water and gas connection

6.2.1 Connection should be made with pipes with DN 15 mm. When installing pipelines, it is recommended that you first connect to the water supply and discharge points, fill the heat exchanger and water system water and only then connect to the place of gas supply. Connection should not be accompanied by mutual tension of pipes and parts of the apparatus in order to avoid displacement or breakage of individual parts and parts of the apparatus and violation of the tightness of gas and water systems.

6.2.2. After installing the apparatus, the places of its connections with communications must be checked for tightness. The tightness of the water inlet and outlet connections is checked by opening the shut-off valve (see Fig. 4) of cold water (with closed water taps). Leakage at the joints is not allowed.

Check the tightness of the gas supply connection by opening a common valve on the gas pipeline with the handle of the device in the closed position (position "Apparatus off"). The check is carried out by washing the joints or special devices. Gas leakage is not allowed.

6.3. Installing a chimney to remove combustion products

For the apparatus, a system is necessarily provided for the removal of combustion products, going from the apparatus outside the building. Flue pipes must meet the following requirements:

• must be airtight and made of non-combustible and corrosion-resistant materials, such as: stainless steel, galvanized steel, enamelled steel, aluminum, copper with a wall thickness of at least 0.5 mm;
• length connecting pipe should not be more than 3 m, there should not be more than three turns on the pipe, the slope of the horizontal section of the pipe should be at least 0.01 towards the water heater;
• the height of the vertical part of the pipe (from the water heater to the axis of the horizontal section) must be at least three diameters;
• The internal diameter of the flue pipes must be at least 125 mm.

6.3.3. The connection between the device and the flue pipe must be airtight. It is recommended to install the pipe according to the diagram in Figure 5.

6.4. After installation, installation and leak testing, the operation of the safety automation must be checked (clauses 5.2.5 and 5.2.6.).

Figure 4. Installation diagram of the device

1 - smoke pipe; 2 - branch pipe; 3 - heat-resistant seal

Figure 5. Scheme of connecting the flue pipe

7. ORDER OF WORK

7.1. Turning on the machine

7.1.1. To turn on the device, it is necessary (see Fig. 4)

a) open the common valve on the gas pipeline in front of the apparatus;

b) open the cold water shut-off valve (in front of the machine);

c) set the handle of the device to the "Ignition" position (see Fig. 3),

d) press the button of the solenoid valve 3 (see Fig. 1) and repeatedly press the piezo ignition button 13 (see Fig. 2) (or bring a lighted match to the pilot burner) until the flame appears on the pilot burner;

e) release the button of the solenoid valve after turning it on (after no more than 60 s), while the flame of the pilot burner should not go out.

WARNING: to avoid burns, do not bring your eyes too close to the viewing window.

At the first ignition or after a long period of non-use of the device, in order to remove air from the gas communications, repeat the indicated operations listed d and e.

f) open the gas cock to the main burner, to do this, turn the gas cock handle to the right until it stops ("Big flame" position). In this case, the pilot burner continues to burn, but the main burner is not yet ignited.

g) open the tap, and the main burner should ignite. The degree of water heating is adjusted by turning the handle of the apparatus within the "Big flame" - "Small flame" positions or by changing the flow rate of water passing through the apparatus.

7.2. Turning off the machine

7.2.1. At the end of use, turn off the device, observing the following sequence:

a) close the water taps (see Fig. 4);

b) turn knob 2 (see Fig. 1) to the "Appliance off" position (counterclockwise to the stop);

c) close the general valve on the gas pipeline;

d) close the cold water shut-off valve.

8. MAINTENANCE

8.1. To ensure long-term trouble-free operation and maintain the performance of the machine, regular care, inspection and maintenance is required. Maintenance and inspection are the responsibility of the owner of the machine.

Maintenance is carried out at least once a year by specialists from the gas facilities or other organizations licensed for this type of activity.

8.2.1. The apparatus should be kept clean, for which it is necessary to regularly remove dust from the upper surface of the apparatus, and also to wipe the lining first with a damp and then with a dry cloth. In case of significant contamination, first wipe the lining with a wet cloth moistened with neutral detergent, and then with a dry cloth.

8.2.2. It is forbidden to apply detergents of the strengthened action and containing abrasive particles, gasoline or other organic solvents for cleaning of a surface of facing and plastic details.

8.3. Inspection

Before switching on the device, you must:

a) check the absence of combustible objects near the device;

b) check for gas leakage (by characteristic smell) and water leakage (visually);

c) check the serviceability of the burners according to the combustion pattern:

the flame of the pilot burner should be elongated, not smoky and reach the main burner (flame deviation sharply upwards indicates clogging of the air supply channels to the burner);

The flame of the main burner should be blue, even and not have yellow smoky tongues indicating contamination of the outer surfaces of the nozzles and inlets of the burner sections.

In case of detection of gas and water leaks, as well as malfunction of the burners, it is necessary to carry out repairs and maintenance of the device.

8.4. Maintenance

8.4.1. During maintenance, the following work is performed:

• cleaning and flushing the heat exchanger from scale inside the pipes and from soot outside;
• cleaning and washing of water and gas filters;
• cleaning and flushing of the main and pilot burners;
• cleaning and lubricating the conical surface of the plug and the gas valve opening;
• cleaning and lubrication of seals and rods of water and gas blocks;
• checking the tightness of the gas and water systems of the apparatus;
• checking the operation of the safety automation, including the draft sensor, for which it is necessary to remove the chimney (see Fig. 1), turn on the device and with the gas cock fully open and maximum flow close the nozzle of the device sheet metal. After 10 ... 60 seconds, the device should turn off. After checking, install the flue pipe according to figure 5.

Work related to maintenance, are not warranty obligations manufacturer.

9. POSSIBLE FAULTS OF THE NEVA 3208 DEVICE AND METHODS FOR THEIR ELIMINATION

10. STORAGE RULES

10.1. The device must be stored and transported only in the position indicated on the handling signs.

10.2. The device must be stored in a closed room that guarantees protection from atmospheric and other harmful influences at an air temperature of -50°C to +40°C and relative humidity no more than 98%.

10.3. When storing the apparatus for more than 12 months, the latter must be subjected to conservation in accordance with GOST 9.014

10.4. The openings of the inlet and outlet pipes must be closed with plugs or plugs.

10.5. Every 6 months of storage, the device must be technical inspection, at which the absence of moisture ingress and dust clogging of the units and parts of the apparatus is checked.

10.6. Apparatus should be stacked in no more than five tiers when stacked and transported.

11. ACCEPTANCE CERTIFICATE

The device is water-heating flowing gas household. NEVA - 3208 complies with GOST 19910-94 and is recognized as serviceable

12. WARRANTY

The manufacturer guarantees trouble-free operation of the device in the presence of project documentation for the installation of the apparatus and subject to the consumer observing the rules for storage, installation and operation established by this "Operation Manual".

Warranty period of operation of the device is 3 years from the date of sale through a retail network; 3 years from the date of receipt by the consumer (for off-market consumption);

12.3. Warranty repair The device is produced by gas facilities, the manufacturer or other organizations licensed for this type of activity.

12.4. Average term service of the device not less than 12 years.

12.5. When purchasing the device, the buyer must receive the "Operation Manual" with the store's mark on the purchase and check for the presence of tear-off coupons for warranty repairs.

12.6. In the absence of a store stamp in the warranty cards with a mark of the date of sale of the device guarantee period calculated from the date of its release by the manufacturer.

12.7. When repairing the device, the warranty card and the spine to it are filled in by an employee of the gas industry or an organization licensed for this type of activity. The warranty card is withdrawn by an employee of the gas industry or an organization licensed for this type of activity. The spine of the warranty card remains in the instruction manual.

12.8. The manufacturer is not responsible for the malfunction of the device and does not guarantee its operation if the Consumer's claim is presented with evidence of:

a) non-compliance with the rules of installation and operation;

b) non-compliance with the rules of transportation and storage by the Consumer, trading and transport organizations;

Evidence can be presented both in the form of an opinion of an independent Expert, and in the form of an act drawn up by a representative of the Manufacturer and signed by the Consumer.