In the name of columns produced in Russia, the letters VPG are often present: this is a water-heating (V) flow-through (P) gas (G) apparatus. The number after the letters VPG indicates the thermal power of the device in kilowatts (kW). For example, VPG-23 is a flow-through gas water heater with a heat output of 23 kW. Thus, the name of modern speakers does not define their design.
The VPG-23 water heater was created on the basis of the VPG-18 water heater, produced in Leningrad. In the future, VPG-23 was produced in the 90s at a number of enterprises in the USSR, and then - SIG. A number of such devices are in operation. Separate nodes, for example, the water part, are used in some models of modern Neva columns.
Main technical characteristics of HSV-23:
- thermal power - 23 kW;
- productivity when heated to 45 ° C - 6 l / min;
- minimum water pressure - 0.5 bar:
- maximum water pressure - 6 bar.
VPG-23 consists of a gas outlet, a heat exchanger, a main burner, a block valve and an electromagnetic valve (Fig. 74).
The gas outlet is used to supply combustion products to the flue pipe of the column. The heat exchanger consists of a heater and a fire chamber surrounded by a cold water coil. The height of the VPG-23 fire chamber is less than that of the KGI-56, because the VPG burner provides better mixing of gas with air, and the gas burns with a shorter flame. A significant number of HSV columns have a heat exchanger consisting of a single heater. The walls of the fire chamber in this case were made of steel sheet, there was no coil, which made it possible to save copper. The main burner is multi-nozzle, it consists of 13 sections and a manifold connected to each other by two screws. Sections are assembled into a single whole with the help of coupling bolts. There are 13 nozzles installed in the collector, each of which pours gas into its own section.
The block valve consists of gas and water parts connected by three screws (Fig. 75). The gas part of the block valve consists of a body, a valve, a valve plug, a gas valve cover. A conical insert for the gas valve plug is pressed into the body. The valve has a rubber seal on the outer diameter. A conical spring presses on top of it. The seat of the safety valve is made in the form of a brass insert pressed into the body of the gas section. The gas cock has a handle with a limiter that fixes the opening of the gas supply to the igniter. The faucet plug is pressed against the conical liner by a large spring.
The valve plug has a recess for supplying gas to the igniter. When the valve is turned from the extreme left position at an angle of 40 °, the groove coincides with the gas supply hole, and the gas begins to flow to the igniter. In order to supply gas to the main burner, the valve handle must be pressed and turned further.
The water part consists of the bottom and top caps, Venturi nozzle, diaphragm, poppet with stem, retarder, stem seal and stem clamp. Water is supplied to the water part on the left, enters the submembrane space, creating a pressure in it equal to the water pressure in the water supply system. Having created pressure under the membrane, water passes through the Venturi nozzle and rushes to the heat exchanger. The Venturi nozzle is a brass tube with four through holes in its narrowest part that open into an outer circular groove. The undercut coincides with the through holes that are in both covers of the water part. Through these holes, pressure from the narrowest part of the Venturi nozzle will be transferred to the supra-membrane space. The poppet stem is sealed with a nut that compresses the PTFE gland.
The automatic water flow works as follows. With the passage of water through the Venturi nozzle in the narrowest part, the highest speed of movement of water and, therefore, the lowest pressure. This pressure is transmitted through the through holes to the supra-membrane cavity of the water part. As a result, a pressure difference appears under and above the membrane, which bends upward and pushes the plate with the stem. The stem of the water part, resting against the stem of the gas part, lifts the valve from the seat. As a result, the gas passage to the main burner opens. When the water flow stops, the pressure under and above the membrane equalizes. The conical spring presses on the valve and presses it against the seat, the gas supply to the main burner stops.
The solenoid valve (Fig. 76) serves to turn off the gas supply when the igniter goes out.
When the solenoid valve button is pressed, its stem rests against the valve and moves it away from the seat, while compressing the spring. At the same time, the armature is pressed against the core of the electromagnet. At the same time, gas begins to flow into the gas part of the block valve. After ignition of the igniter, the flame begins to heat the thermocouple, the end of which is installed in a strictly defined position with respect to the igniter (Fig. 77).
The voltage generated during the heating of the thermocouple is supplied to the winding of the core of the electromagnet. In this case, the core holds the anchor, and with it the valve, in the open position. The time during which the thermocouple generates the necessary thermo-EMF and the electromagnetic valve begins to hold the armature is about 60 seconds. When the igniter goes out, the thermocouple cools down and stops generating voltage. The core no longer holds the anchor, under the action of the spring the valve closes. The gas supply to both the igniter and the main burner is stopped.
Draft automation turns off the gas supply to the main burner and igniter in case of violation of draft in the chimney, it works on the principle of "gas removal from the igniter". Traction automation consists of a tee, which is attached to the gas part of the block valve, a tube to the draft sensor and the sensor itself.
Gas from the tee is supplied to both the igniter and the draft sensor installed under the gas outlet. The thrust sensor (Fig. 78) consists of a bimetallic plate and a fitting, reinforced with two nuts. The top nut is also a seat for a plug that shuts off the gas outlet from the fitting. A tube supplying gas from the tee is attached to the fitting with a union nut.
With normal draft, the combustion products go into the chimney without heating the bimetallic plate. The plug is tightly pressed against the seat, the gas does not come out of the sensor. If the draft in the chimney is disturbed, the combustion products heat up the bimetallic plate. It bends up and opens the gas outlet from the fitting. The gas supply to the igniter decreases sharply, the flame ceases to heat the thermocouple normally. It cools down and stops producing voltage. As a result, the solenoid valve closes.
Repair and service
The main malfunctions of the HSV-23 column include:
1. The main burner does not light up:
- little water pressure;
- deformation or rupture of the membrane - replace the membrane;
- clogged venturi nozzle - clean the nozzle;
- the stem came off the plate - replace the stem with the plate;
- skew of the gas part in relation to the water part - align with three screws;
- the stem does not move well in the stuffing box - lubricate the stem and check the tightening of the nut. If the nut is loosened more than necessary, water may leak from under the stuffing box.
2. When the water intake is stopped, the main burner does not go out:
- dirt has got under the safety valve - clean the seat and valve;
- weakened cone spring - replace the spring;
- the stem does not move well in the stuffing box - lubricate the stem and check the tightness of the nut. In the presence of an igniter flame, the solenoid valve is not held in the open position:
3. Violation of the electrical circuit between the thermocouple and the electromagnet (open or short circuit). The following reasons are possible:
- lack of contact between the terminals of the thermocouple and the electromagnet - clean the terminals with sandpaper;
- violation of the insulation of the copper wire of the thermocouple and its short circuit with the tube - in this case, the thermocouple is replaced;
- violation of the insulation of the turns of the electromagnet coil, shorting them to each other or to the core - in this case, the valve is replaced;
- violation of the magnetic circuit between the armature and the core of the electromagnet coil due to oxidation, dirt, grease, etc. It is necessary to clean the surfaces with a piece of coarse cloth. Cleaning of surfaces with needle files, sandpaper, etc. is not allowed.
4. Insufficient heating of the thermocouple:
- the working end of the thermocouple is smoky - remove soot from the hot junction of the thermocouple;
- the igniter nozzle is clogged - clean the nozzle;
- the thermocouple is incorrectly set relative to the igniter - install the thermocouple relative to the igniter so as to provide sufficient heating.
Voted Thanks!
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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 cell phone number come across, but even there there is no instruction - only the name of the file. 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 installation and operation of the device, it is necessary to carefully read the rules and requirements set forth in this operation manual, compliance with which will ensure long-term trouble-free and safe operation of the 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-V11-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 net 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, installation, owner briefing, preventive maintenance, troubleshooting and repairs are carried out by gas operating organizations or other organizations licensed for this type of activity. 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. The owner is responsible for the safe operation of the machine and for keeping it in good condition.
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 Nominal natural gas pressure 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. Overall dimensions of the device: 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. In order to prevent the device from defrosting in winter (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. When using a faulty device or if the above operating rules are not followed, an explosion or poisoning by gas or carbon monoxide (carbon monoxide) contained in the products of incomplete combustion of the gas may occur.
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, it is necessary to: take the victim to fresh air, unfasten clothing that restricts breathing, give ammonia a sniff, cover it warmly, but do not let it fall asleep and call a doctor.
If there is no breathing, immediately take the victim to a warm room with fresh air and perform artificial respiration, without stopping it until the doctor arrives.
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 ignition burner flame, 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 turning 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 device 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 the water system with water, and only then connect to the gas supply point. 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 using 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, enameled steel, aluminum, copper with a wall thickness of at least 0.5 mm;
- the length of the connecting pipe should not be more than 3 m, the pipe should not have more than three turns, 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 device within the "Big flame" - "Small flame" positions or by changing the flow rate of water passing through the device.
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. Do not use detergents with enhanced action and containing abrasive particles, gasoline or other organic solvents to clean the surface of the cladding and plastic parts.
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 valve fully open and the maximum water flow, close the device’s branch pipe with a metal sheet. After 10 ... 60 seconds, the device should turn off. After checking, install the flue pipe according to figure 5.
Maintenance work is not covered by the manufacturer's warranty.
9. POSSIBLE FAULTS OF THE NEVA 3208 DEVICE AND METHODS FOR THEIR ELIMINATION
Fault name | Probable Cause | Elimination Methods |
The igniter is difficult to ignite or does not ignite at all | The presence of air in gas communications. | See section 7.1 Turning on the machine |
Clogged igniter nozzle | ||
Replace LPG bottle |
||
When the solenoid valve button is released (after a control time of 60 s), the igniter goes out. | Ignition burner flame fails to heat thermocouple | Call the gas service |
Broken electrical circuit thermocouple - solenoid valve | Check the contact of the thermocouple with the solenoid valve (clean the contacts if necessary) Check the tightness of the connection of the thermocouple with the solenoid valve, while remembering: the tightening torque must ensure reliable contact, but should not exceed 1.5 N.m (0.15 kg.m) in order to avoid damage to these units. |
|
The electromagnetic plug or thermocouple is out of order | Call the gas service |
|
The main burner does not ignite or is difficult to ignite when the hot water tap is opened. | Insufficient opening of the gas cock on the device or the general cock on the gas pipeline | Turn the handle of the device to the “Big flame” position and open the common valve on the gas pipeline completely |
Low gas pressure | Call the gas service |
|
Low tap water pressure | Temporarily not using the device |
|
Clogged water filter, torn membrane or broken water block plate | Call the gas service |
|
The main burner does not go out when the hot water tap is closed | Jamming of the stem of the gas or water block | Call the gas service |
The flame of the main burner is sluggish, elongated, with yellow smoky tongues | Dust deposits on the nozzles and internal surfaces of the main burner | Call the gas service |
After a short period of operation, the device turns off spontaneously. | No draft in the chimney | Clean the chimney. |
The supply of liquefied gas in the cylinder has run out | Replace LPG bottle. |
|
The faucet plug handle turns with considerable effort | Lubricant drying out | Call the gas service |
Ingress of contaminants | Call the gas service |
|
Low water flow at the outlet of the apparatus with normal water pressure in the pipeline | Presence of scale in the heat exchanger or in the hot water outlet pipe | Call the gas service |
Insufficient water heating | Large water consumption | |
Soot deposits on the heat exchanger fins or scale in the heat exchanger tubes | Call the gas service |
|
During operation of the device, there is increased noise from flowing water. | Large water consumption | Adjust the water flow to 6.45 l/min. |
Misaligned gaskets in the water block connection | Correct misalignment or replace gaskets. |
|
The main burner ignites with a "pop" and the ejection of the flame from the casing window | The ignition burner flame is small or deviates sharply upwards and does not reach the main burner (the nozzle is clogged or the air supply channel to the igniter is clogged with dust, the groove on the valve plug is partially clogged with grease, low gas pressure) | Call the gas service |
Ignition retarder not working | Call the gas service |
|
The igniter does not ignite from the piezo ignition (it ignites normally from a match) | No spark between spark plug and igniter | Check the connection of the wires of the piezoelectric generator to the candle and to the body of the device. |
Weak spark between spark plug and igniter | Set a gap of 5 mm between the spark plug electrode and the igniter. |
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 indoors, which guarantees protection from atmospheric and other harmful influences at an air temperature of -50°C to +40°C and a relative humidity of not 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 subjected to a technical inspection, which checks for the absence of moisture and dust clogging of the components and parts of the device.
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 if the project documentation for the installation of the device is available and if the consumer observes 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 of the apparatus is carried out by gas facilities, the manufacturer or other organizations licensed for this type of activity.
12.4. The average service life of the device is at least 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, the warranty period is 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.
Column gas vpg 23 instruction. Download three files and get a prize! (see conditions below)
Column gas vpg 23 instruction
This site presents: All devices have a draft sensor and protective devices that turn off the gas in emergency situations, which ensures safe operation.. They are small in size and low in price.. Batteries need to be changed every half a year or once a year.. comfort during operation and the cost of a particular type of geyser .. Therefore, all work on installing a gas appliance should be carried out only by specialists with the appropriate licenses from Gosgortekhnadzor .. In two or three room apartments, geysers with a standard power of 23-24 kW and productivity 13-14 l min. two AA batteries.. The advantages of this solution are obvious s: only cold water and gas distribution is installed in the building, hot water is always available in the apartment and does not depend on preventive and repair work at the heating plant. -17, kW and output 10-11 l min.. Water pressure Italy Beretta Idrabagno, Germany bosch WR.. Geysers with piezo ignition columns, - ensuring their complete safety during operation. appliances, they also offer imported ones (Ariston, aeg, Electrolux, Demrad, Vailla nt), and Russian ("Neva", "Astra", "Avangard") products .. There are several types of gas water heaters: with manual, electronic and piezo ignition. their resource, fail.. These devices do not need a stationary chimney.. When choosing a new gas appliance, it is necessary to take into account some factors that affect the heating of hot water: Minimum water pressure at the inlet to the device.. Praise, scold gas water heaters (flowing water heaters) of different companies .. In houses where water pressure fluctuations below 1 atm are possible .. Firms manufacturing gas water heaters, both domestic and imported, are constantly improving their products and there is no longer a single modern device that you need set it on fire with matches.. When you open the tap, the column will light up, and after a few seconds hot water will begin to flow. Geysers with different types of burners In the designs of gas burners can be used: gas burners with a constant power, where constant manual adjustment of the water temperature is required depending on its flow; gas burners with variable power, where the power changes automatically depending on the flow of water; Column device 1.. It is better to install columns that turn on from a minimum water pressure of 0, atm .. We hope that you will find answers to these questions in this article. Water pressure Russia Tulachermet Proton-1m 0.5 Russia Proton-2 0, Russia Proton-3 0, Czech Republic mora. are connected to a natural draft chimney. burner, and the hydraulic valve will stop supply to the main burner if there is no water in the heat exchanger. Geysers come in various types gas water heaters, depending on how they are turned on and what type of burner is used Gas water heaters with manual ignition Such gas water heaters are practically not used today. for installation in private homes, since not all apartments have the conditions for installing these devices .. In the same mode, the gas water heater is also turned off when the water tap is closed. Electronic speakers do not burn anywhere even after the water tap is closed.Malfunctions of the column KGI-56
Insufficient water pressure;
The hole in the submembrane space is clogged - clean it;
The stem does not move well in the stuffing box - refill the stuffing box and lubricate the stem.
2. When the water intake is stopped, the main burner does not go out:
Clogged hole in the supra-membrane space - clean;
Dirt got under the safety valve - clean;
Weakened small spring - replace;
The stem does not move well in the stuffing box - refill the stuffing box and lubricate the stem.
3. Radiator clogged with soot:
Adjust the combustion of the main burner, clean the radiator from soot.
HSV-23
The name of a modern column made in Russia almost always contains letters HSV: this is a water-heating device (V) flow-through (P) gas (G). The number after the letters VPG indicates the thermal power of the device in kilowatts (kW). For example, VPG-23 is a flow-through gas water heating apparatus with a thermal power of 23 kW. Thus, the name of modern speakers does not define their design.
Water heater VPG-23 created on the basis of the water heater VPG-18, produced in Leningrad. In the future, HSV-23 was manufactured in the 80-90s. at a number of enterprises in the USSR and then in the CIS.
HSV-23 has the following specifications:
thermal power - 23 kW;
water consumption when heated to 45°C - 6 l/min;
water pressure - 0.5-6 kgf / cm 2.
VPG-23 consists of a gas outlet, a radiator (heat exchanger), a main burner, a block valve and an electromagnetic valve (Fig. 23).
gas outlet serves to supply combustion products to the flue pipe of the column.
The heat exchanger consists from a heater and a fire chamber surrounded by a cold water coil. The size of the fire chamber VPG-23 is smaller than that of KGI-56, because the VPG burner provides better mixing of gas with air, and the gas burns with a shorter flame. A significant number of VPG columns have a radiator consisting of a single heater. The walls of the fire chamber in this case are made of steel sheet, which saves copper.
Main burner consists of 13 sections and a collector, interconnected by two screws. Sections are assembled into a single whole with the help of coupling bolts. There are 13 nozzles installed in the collector, each of which supplies gas to its section.
Rice. 23. HSV-23 column
Block crane consists from the gas and water parts, connected by three screws (Fig. 24).
gas part block valve consists of a body, a valve, a conical insert for a gas valve, a valve plug, a gas valve cover. The valve has a rubber seal on the outer diameter. A conical spring presses on top of it. The seat of the safety valve is made in the form of a brass insert pressed into the body of the gas section. The gas cock has a handle with a limiter that fixes the opening of the gas supply to the igniter. The faucet plug is held in the body by a large spring. The valve plug has a recess for supplying gas to the igniter. When the valve is turned from the extreme left position at an angle of 40 °, the groove coincides with the gas supply hole, and the gas begins to flow to the igniter. In order to supply gas to the main burner, it is necessary to press the handle of the valve and turn further.
Rice. 24. Block crane VPG-23
water part consists of bottom and top covers, venturi nozzle, diaphragm, poppet with stem, retarder, stem seal and stem clamp. Water is supplied to the water part on the left, enters the submembrane space, creating a pressure in it equal to the water pressure in the water supply. Having created pressure under the membrane, the water passes through the Venturi nozzle and rushes to the radiator. The Venturi nozzle is a brass tube with four through holes in its narrowest part that open into an outer circular groove. The undercut coincides with the through holes that are in both covers of the water part. Through these holes, pressure from the narrowest part of the Venturi nozzle is transferred to the supra-membrane space. The poppet stem is sealed with a nut that compresses the PTFE gland.
Water flow automatic in the following way. With the passage of water through the Venturi nozzle in the narrowest part, the highest speed of movement of water and, therefore, the lowest pressure. This pressure is transmitted through the through holes to the supra-membrane cavity of the water part. As a result, a pressure difference appears under and above the membrane, which bends upward and pushes the plate with the stem. The stem of the water part, resting against the stem of the gas part, lifts the safety valve from the seat. As a result, the gas passage to the main burner opens. When the water flow stops, the pressure under and above the membrane equalizes. The conical spring presses the safety valve and presses it against the seat, the gas supply to the main burner stops.
Solenoid valve(Fig. 25) serves to turn off the gas supply when the igniter goes out.
Rice. 25. Solenoid valve VPG-23
When the solenoid valve button is pressed, its stem rests against the valve and moves it away from the seat, while compressing the spring. At the same time, the armature is pressed against the core of the electromagnet. At the same time, gas begins to flow into the gas part of the block valve. After ignition of the igniter, the flame begins to heat the thermocouple, the end of which is installed in a strictly defined position with respect to the igniter (Fig. 26).
Rice. 26. Installation of the igniter and thermocouple
The voltage generated during the heating of the thermocouple is supplied to the winding of the core of the electromagnet. The core begins to hold the anchor, and with it the valve, in the open position. Solenoid valve response time - about 60 sec. When the igniter goes out, the thermocouple cools down and stops generating voltage. The core no longer holds the anchor, under the action of the spring the valve closes. The gas supply to both the igniter and the main burner is stopped.
Traction control turns off the gas supply to the main burner and igniter in case of violation of draft in the chimney. It works on the principle of "removal of gas from the igniter".
Rice. 27. Traction sensor
The automation consists of a tee, which is attached to the gas part of the block valve, a tube to the draft sensor and the sensor itself. Gas from the tee is supplied to both the igniter and the draft sensor installed under the gas outlet. The thrust sensor (Fig. 27) consists of a bimetallic plate and a fitting, reinforced with two nuts. The top nut is also a seat for a plug that shuts off the gas outlet from the fitting. A tube supplying gas from the tee is attached to the fitting with a union nut.
With normal draft, the combustion products go into the chimney without falling on the bimetallic plate. The plug is tightly pressed against the seat, the gas does not come out of the sensor. If the draft in the chimney is disturbed, the combustion products heat up the bimetallic plate. It bends up and opens the gas outlet from the fitting. The gas supply to the igniter decreases sharply, the flame ceases to heat the thermocouple normally. It cools down and stops producing voltage. As a result, the solenoid valve closes.
Faults
1. The main burner does not light up:
Insufficient water pressure;
Deformation or rupture of the membrane - replace the membrane;
Clogged Venturi nozzle - clean;
The rod came off the plate - replace the rod with the plate;
Distortion of the gas part in relation to the water part - align with three screws;
2. When the water intake is stopped, the main burner does not go out:
Dirt got under the safety valve - clean;
Weakened cone spring - replace;
The stem does not move well in the stuffing box - lubricate the stem and check the tightening of the nut.
3. In the presence of an igniter flame, the solenoid valve is not held in the open position:
a) electrical failure circuit between thermocouple and electromagnet - open or short circuit. Maybe:
Lack of contact between the thermocouple and electromagnet terminals;
Violation of the insulation of the copper wire of the thermocouple and its short circuit with the tube;
Violation of the insulation of the turns of the electromagnet coil, shorting them to each other or to the core;
Violation of the magnetic circuit between the armature and the core of the electromagnet coil due to oxidation, dirt, grease, etc. It is necessary to clean the surfaces with a piece of coarse cloth. Cleaning of surfaces with needle files, sandpaper, etc. is not allowed;
b) insufficient heating thermocouples:
The working end of the thermocouple is smoky;
The igniter nozzle is clogged;
The thermocouple is incorrectly installed relative to the igniter.
FAST column
Flowing water heaters FAST have an open combustion chamber, combustion products are removed from them due to natural draft. Columns FAST-11 CFP and FAST-11 CFE heat 11 liters of hot water per minute when the water is heated to 25°C
(∆T = 25°С), columns FAST-14 CF P and FAST-14 CF E - 14 l/min.
Flame control on FAST-11 CF P (FAST-14 CF P) produces thermocouple, on columns FAST-11 CF E (FAST-14 CF E) - ionization sensor. Speakers with an ionization sensor have an electronic control unit that needs power supply - a 1.5 V battery. The minimum water pressure at which the burner ignites is 0.2 bar (0.2 kgf / cm 2).
The scheme of the FAST CF water heater model E (i.e. with an ionization sensor) is shown in fig. 28. The column consists of the following nodes:
Gas outlet (traction diverter);
Heat exchanger;
Burner;
Control block;
Gas valve;
Water valve.
The gas outlet is made of 0.8 mm thick aluminum sheet. The diameter of the FAST-11 smoke outlet is 110 mm, FAST-14 is 125 mm (or 130 mm). A draft sensor is installed on the gas outlet 1 . The heat exchanger of the water heater is made of copper using the “Water cooling of the combustion chamber” technology. The copper tube has a wall thickness of 0.75 mm and an inner diameter of 13 mm. The burner model FAST-11 has 13 nozzles, FAST-14 has 16 nozzles. The nozzles are pressed into the manifold; when switching from natural gas to liquefied gas or vice versa, the manifold is replaced entirely. An ionization electrode is fixed on the burner 4, ignition electrode 2 and igniter 3.
Rice. 28. Scheme of the FAST CFE water heater
Electronic control unit powered by a 1.5 V battery. Ionization and ignition electrodes, a draft sensor, an on / off button 5, a microswitch are connected to it 6, as well as the main solenoid valve 7 and the igniter solenoid valve 8. Both solenoid valves enter the gas valve, which also has a diaphragm 9, main valve 10 and cone valve 11. The gas valve has a device for adjusting the gas supply to the burner (12). The user can adjust the gas supply from 40 to 100% of the possible value.
The water valve has a diaphragm with a poppet 13 and venturi tube 14. With water temperature controller 15 the consumer can change the flow of water through the water heater from the minimum (2-5 l / min) to the maximum (11 l / min or 14 l / min, respectively). The water valve has a master regulator 16 and additional regulator 17, as well as a flow regulator 18. A vacuum tube is used to provide a pressure drop across the membrane. 19.
FAST CF model E columns are automatic, after pressing the button on off" 5 further switching on and off is carried out by a hot water tap. When the water flow through the water valve is more than 2.5 l / min, the membrane with a plate 13 shifts and turns on the microswitch 6, and also opens the cone valve 11. main valve 10 before switching on, it is closed, since the pressure above and below the membrane 9 is the same. The above-membrane and sub-membrane spaces are interconnected through the normally open main solenoid valve 7. After switching on, the electronic control unit supplies sparks to the ignition electrode 2 and voltage to the igniter solenoid valve 8, which was closed. If after ignition of the igniter 3 ionization electrode 4 detects a flame, the main solenoid valve is energized 10 and it closes. Gas from under the membrane 9 goes to the fire. Pressure under the diaphragm 9 decreases, it moves and opens the main valve 10. Gas goes to the burner, it ignites. Igniter 3 goes out, the power to the igniter valve is turned off. If the burner goes out, through the ionization electrode 4 the current will stop flowing. The control unit will turn off the power to the main solenoid valve 7. It will open, the pressure under and above the membrane will equalize, the main valve 10 will close. The change in burner power is automatic and depends on the water flow. conical valve 11 due to its shape, it ensures a smooth change in the amount of gas supplied to the burner.
Water valve works in the following way. With the flow of water, the membrane with a plate 13 deviates due to changes in pressure below and above the membrane. The process occurs due to the Venturi tube 14. As water flows through the constriction of the venturi, the pressure decreases. Through a vacuum tube 19 the reduced pressure is transferred to the supra-membrane space. Main regulator 16 connected to the membrane 13. It moves depending on the water flow, as well as the position of the additional regulator 1 7. The water flow is terminated through a venturi tube and an open temperature controller 15. temperature controller 15 the consumer can change the flow of water, which allows some of the water to be supplied bypassing the venturi. The more water passes through the temperature controller 15, the lower its temperature at the outlet of the water heater.
Gas supply regulation on the burner depending on the water flow is as follows. With an increase in flow, the membrane with a plate 13 is rejected. With it, the main regulator deviates 16, the water flow decreases, i.e. the water flow depends on the position of the membrane. At the same time, the position of the cone valve 11 in the gas valve also depends on the movement of the diaphragm with the plate 13.
When you turn off the hot tap water pressure on both sides of the membrane with a plate 13 levels out. Spring closes the cone valve 11.
Thrust sensor 1 installed at the gas outlet. In case of violation of traction, it is heated by combustion products, the contact in it opens. As a result, the control unit is disconnected from the battery, the water heater turns off.
Review questions
1. What is the nominal pressure of LPG for domestic stoves?
2. What needs to be done to transfer the stove from one gas to another?
3. How is the slab faucet arranged?
4. How is the electric ignition of the stove burners carried out?
5. Describe the main malfunctions of the plates.
6. Explain the sequence of actions when igniting the burners of the stove.
7. What are the main nodes of the column?
8. What does dispenser safety automation control?
9. How is the gas part of KGI-56 arranged?
10. How does block crane KGI-56 work?
11. How is the water part of HSV-23 arranged?
12. Where is the venturi nozzle in HSV-23?
13. Describe the operation of the water part of HSV-23.
14. How does the HSV-23 solenoid valve work?
15. How does the VPG-23 automatic traction work?
16. For what reason can the main burner HSV-23 not light up?
17. What is the minimum water pressure to operate the FAST dispenser?
18. What is the supply voltage of the FAST speaker?
19. Describe the device of the FAST column gas valve.
20. Describe the operation of the FAST column.
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