If the house has a gas heater, once the question arises about its maintenance. The heat exchanger of such a device gradually overgrown calcareous deposits on the burner and deposited soot particles and soot. Better to find out just how to maintain equipment in proper condition so that it did not work prematurely fail.
We'll show you how to clean the gas column with their own hands, if the call is representative of the supply gas is optional service. In the present article we describe methods for the removal of soot and other combustion products with important working bodies of flowing water heater. Give advice on the prevention of dangerous deposits.
The content of the article:
- The operating principle of instantaneous water heater
- The procedure for descaling
- Cleaning the heat exchanger without dismantling
- Removal of contaminants from combustion gases
- Prevention of scale formation
- Conclusions and useful videos on the topic
The operating principle of instantaneous water heater
Gas water heater - this is a relatively simple device for heating water. Above the heat exchanger is connected to the water supply system. Under it there is a burner which is connected to a gas pipe.
All current models of the burner ignition is automated, manual kindle only very old or faulty model. Recent best to repair, so as not to risk the health of the home and the integrity of the property.
Construction hidden protective housing, the front panel which is usually located control unit. It controls the maximum temperature of hot water, the amount of gas and other parameters of the instrument. Top cap and has a flue tube through which combustion products are removed.
When the water in the building opening, the burner is automatically activated gas heats the water to the required temperature. Avtorozzhig configured so that the heater included only at a sufficiently high water pressure in the system. Another important indicator - the presence of a good traction.
Before starting work on the household gas heater cleaning is necessary to get acquainted with the instrument device to use it properly disassemble
The process of heating the water accompanied by precipitation of hard sediment that gradually accumulates inside the heat exchanger. The tubes are hammered deposits, resulting in deteriorating quality of the heating, the work instantaneous water heater It becomes not effective.
Regular cleaning of the column will help avoid such problems. In addition to scaling within the device may be assembled and other contaminants, it all depends on the water quality.
Domestic gas water heater is arranged is not particularly difficult: the water moves through the pipe heat exchanger, it heats the burner ignition is switched on automatically
The fact that it is time to clean the column, say the following features:
- pressure tap hot-water is considerably weaker than jet of cold tap;
- head is good, but almost immediately after turning on the heater turns off;
- device is generally stopped independently from the head;
- there is an insufficient flow of warm compared to the same state;
- water is heated to the desired temperature, but too slowly.
Some problems may also occur in case of breakage shut-off valve, which is mounted at the inlet of the column. Do not interfere, first check it out, and only then start cleaning.
The procedure for descaling
To perform a normal flushing of the heat exchanger gas heaterFirst must find the valves, which overlap the intake gas and water to the device, and then rotate them.
At this stage it is recommended to get the operating instructions and to refresh the memory device information of the device, as well as the manufacturer's recommendations. This will prevent errors during dismantling.
To disassemble the column, you will need the usual tools, which are available to any experienced wizard:
- Adjustable and pipe wrenches;
- direct and Phillips screwdrivers;
- paronitovye gaskets;
- the length of the hose is not less than half a meter;
- metal clamp to secure the hose.
The hose is attached to the exit of the heat exchanger is immersed in the sink to a wastewater contaminants can be drained into the sewer. If this is not possible, it will also have to stock up on a large enough capacity to drain water. Since the column is removed a protective casing. Act should be careful not to break the control panel.
To clean the heat exchanger descaling it is usually dismounted and then mounted again in place, sealing threaded connections
Now you need to remove the filter for the water, which is usually fixed nut. The filter should be washed in the future and to set in place. If the deposits proved to be too complex, it is recommended to use chemical cleaners to remove dirt from the mesh. The washing process can be detected filter damage. In this case, it is better to replace.
Now you need to remove the heat exchanger from the water pipes, usually in these places used conventional threaded connection, which should be just unwind. The heat exchanger is removed from the loop and turn. Some masters advise on cleaning time to put it in a sufficiently large capacity to harsh chemicals is not flowed to the floor.
To qualitatively rinse the heat exchanger, it can be put into a large container of cleaning agent. The processing time depends on the package
The cleaner can be used as a suitable means, e.g., "descaling". Suitable as usual a 9% solution of vinegar and other household formulations. It is possible to make the solution of citric acid: 100 g per liter of water.
Some have a positive experience descaling using the beverage "Pepsi-Cola" or "Sprite", which contain phosphoric acid. But should not be used for these purposes, an acetic essence, it can corrode the walls of pipes, will have to spend serious repair.
The heat exchanger is inverted and it is poured into a cleaner with a blower or a large syringe. Usually, one needs at least 500 ml of the composition, but no more liters. Thereafter, vinegar or citric acid is left within about quarter of an hour. When using industrial cleaners is recommended to follow the instructions.
To remove the protective cover from the gas column must be carefully not to damage the electronic control panel and other device elements
After cleaning solution is poured off and tubes are washed out of the accumulated dirt. For this heat exchanger again input connected to the water mains, and the output capacitance pose to collect the rinse water.
Washing was performed until the pure jet. If there is serious contamination single purification procedure may not be enough, it will have to be repeated again using a fresh batch cleaner.
Upon completion, it is necessary to collect a column in the reverse order. The heat exchanger is connected to the water supply. In this case, the threaded connection should be sealed and treat graphite lubricant. All available field mounting pads need to be replaced immediately by new ones.
You must now replace the washed coarse filter, wear to the device casing and reapply to column gas, and water, by unscrewing the respective valves. It remains to perform the control of water start to make sure that the heater is working properly.
Cleaning the heat exchanger without dismantling
There is also a method of cleaning the heat exchanger without complete disassembly. For this purpose, one must first remove the cover from the device and to disconnect the feed water pipe from the heat exchanger. Inlet copper pipe coil must be slightly moved to make it easier to work with.
"Descaling" is considered very effective and safe remedy for the descaling of heat exchanger column gas, although can be used and other household facilities
At the outlet hose wear. Then you need to open the tap and pour a little water, about a liter, to release the coil from the liquid. If it is possible to specify the capacity of the heat exchanger in the data sheet gas heater, It is advisable to drain from the system that is the number of water or a little more.
For column purification process better take powder "descaling", which before use is diluted with hot water. It does not hurt to take care of the protection of the skin and eyes from accidental exposure to composition, because it contains hydrochloric acid.
Now, in the inlet pipe to insert the funnel and pour into a heat exchanger "descaling". It should be remembered that during rapid pouring inside the reaction may start that would lead to dangerous ejection of the solution in the reverse direction. Therefore, you need to fill in the composition in small portions and a thin stream.
If a gas leak has been detected in the process of cleaning the column, you need to immediately close the tube and cause masters of gas facilities
Filled with a solution of the heat exchanger should be left for about two hours. To speed up the purification process, it is possible to enable the igniter (not necessarily overlap the gas for this cleaning method). When the process is completed, open the valve and drain the water from the column with dissolved sludge.
If contamination goes a lot, and jet exhibits good pressure, cleaning can be considered satisfactory. If not - you need to carry out the procedure again, but using the "descaling" such a need does not normally arise.
This method of cleaning is recommended with the use of just such a cleaner. The use of vinegar or citric acid in this case can badly affect the state of the aluminum reducer.
Removal of contaminants from combustion gases
Soot, soot and other solid combustion products, although such devices are formed in small quantities, but it can cause serious damage.
If you need to clean this part of the device, it is necessary to recall the manufacturer's instructions again, especially if the warranty period has not yet expired. Some manufacturers require that such work was carried out only by professional gasman.
Remove grime from the surface of the heat exchanger can be by conventional scrubbing, but will need a metal wire for cleaning injectors
The easiest way to clear the column of combustion products radiator. To do this, turn off the gas and remove the protective cover from the device. Thereafter, the element surface treated by a conventional domestic vacuum cleaner.
If the gas in the column is not lit, or poorly illuminated unevenly and possibly clogging of nozzles occurs. In order to clear them of accumulated soot layers using a fine wire or a brush with bristles made of metal.
Of course, in this case you should turn off the gas and remove the cover. Cleaning to be performed carefully so as not to damage the components of the device.
When soot accumulates too fast, it makes sense to think about the presence of other failures that provoke this situation. A common cause of this phenomenon - in the joints leaked gas tubes within the column.
Burner gas column consists of narrow nozzles. If they are clogged with soot, gas will flow evenly, the water will be heated slowly
The slit may be so small that determine the leak by smell is not possible. When a fault is suspected of this type must apply soap solution at the joints, and then supplied to the gas apparatus.
If the solution became to bubble, stop working, turn off the gas and immediately call an experienced gasman. Initiative at this stage can be fatal.
Water pressure is normal, the soot is removed, but the heater still does not start? It's time to check your cravings. In modern models have special sensors normally, which fix the lack of traction and not allow you to enable the device, closing the supply of gas to the ignition device.
To check better to use thin strips of paper. Flame candles or lighters can be dangerous if the problems have arisen because of a gas leak.
If the soot particles and other combustion products accumulate in the column too quickly, you need to find the problem that leads to this result
Finding a weak draft, you must identify the cause of the situation. Usually it is sufficient to clean the chimney, to restore normal operation of the device. If this does not work, it is necessary to consult with an engineer for gas equipment, may have blemishes that occurred during the installation of the chimney construction.
Prevention of scale formation
Hard water - not the only cause of limescale within the heat exchanger tubes. For its appearance requires not only the salt contained in the water, but also the high temperature heating. The greater the burn gas, the more intense the solid precipitate falls within the device. It is considered critical temperature of 80 degrees or above.
To scale accumulated inside the heat exchanger as slowly as possible, you need to correctly set the temperature setting on the water heater control panel
It is obvious that such a strong heating is not needed for domestic use. Shower 40-42 degrees is sufficient for cleaning even the dirtiest utensils enough for 45 degrees. Automatic washing machine heats the water up to 95 degrees, if necessary, but the geyser in this process did not participate.
Therefore, if the hot water is constantly having to raise cold, should reconsider setting the gas column on heating temperature. Some amateur craftsmen reams igniter gas column. This is done to increase the speed of the heating water flow.
In older models, such alteration can eliminate the need to stir up and configure the device every time you turn. Finally, the igniter need reamed to gas fired even at very low water pressure flow.
In this case, it may be very dangerous situation, when a small amount of water in the heat exchanger boil and go into a gaseous form. As a result, the pressure in the heat exchanger will rise sharply and it just burst.
When limescale accumulates inside the narrow tube coil, is created a precipitate which prevents efficient heat circulation and normal water
Of course, such an intervention gasman considered dangerous, and producers refuse to perform the warranty for devices with similar alterations. to improve the pressure in the systemYou can pick up and deliver a regular the circulation device or boost pump. And water quality is improved, and the devices are not affected.
Conclusions and useful videos on the topic
An interesting embodiment of the gas washing column can be seen in this material:
Here it is shown cleaning the heat exchanger without disassembly procedure:
In this video interesting experiment shows dissolution of scale in the electrolyte, vinegar and citric acid. Though it is necessary to consider not only the impact of chemistry on the hard sediment, but also on the material from which the heat exchanger is made of:
Any gas water heater needs to be cleaned periodically. If maintenance is correct, the device will work long and effectively.
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