Electric water heater storage type provides local hot water supply if centralized is not available. The design of the unit is very simple. In order for it to last for a long time, periodic maintenance is necessary. To clean the tank and during breaks in operation, it is necessary to drain the water from the tank.
There are the following main situations when draining is necessary:
Boiler in the country
For consumers connected to centralized water supply, water comes after disinfection. There are so few microbes in it that they do not have time to multiply to alarming numbers.
If the water heater is supplied from a well or a well, once a month it is necessary to refresh the water in it, then turn on and warm up the device to the maximum.
Boiler contamination
After draining the pipes, there are still several liters of liquid left in the tank. To completely drain, you will have to unscrew several nuts securing the heating element.
In this case, it becomes possible to clean the inside of the tank from mineral deposits and other contaminants accumulated there. At the same time, you should check the condition of the magnesium anode, which protects the walls of the tank and the housing of the heating element from corrosion associated with electrochemical reactions.
Deposits in the tank
A new anode must be prepared in advance. At the same time, manufacturers and repairmen recommend replacing the silicone gasket that seals the heating element mounting flange.
The general design of boilers of different brands is very similar. Despite this, there are differences between them in the procedure for draining.
The drain hose (green) is connected to the drain pipe
Draining is carried out like this:
When draining is complete, disconnect the hose and close the tap.
An equally popular brand also requires draining during a long break in operation.
Boiler drain - unscrewed connections
Before you begin, you should disconnect the device from the power supply. After this, you need to let it cool to at least 40 o C to avoid burns.
After draining is completed, the unscrewed nuts must be tightened.
Bosh boilers are connected according to one of two schemes:
Regardless of the scheme, you first need to disconnect the device from the network and wait for it to cool down.
With the usual scheme:
With a simplified scheme:
To speed up the drainage, open the valve on the outlet pipe.
Haier and Electrolux units are drained in the same order.
First you need to turn off the power to the device and let it cool.
If, when installing a system, they try to save on small things, then they do not install taps, connecting the pipes directly.
If in good working order drain valve it is opened and the water is poured into the drainage or into a substitute container.
If cut-off valves are not installed, then do this:
Exist general rules drain from the boiler, depending on the version of the wiring diagram used.
Most manufacturers recommend using this scheme. It is more difficult to install and costs more in terms of materials and components. But the liquid can be drained without using tools and with a minimum of effort and time.
Standard scheme
The scheme includes the following elements:
This installation method allows for complete drainage in 15-20 minutes.
The sequence of actions is as follows:
If the water flows out slowly, you can connect a compressor to the tap and pump air into the tank. This will significantly speed up the process.
Often, during installation, the drain pipe is immediately connected by a pipe to the drain. Then draining will be even more convenient - your hands will definitely remain dry.
When starting the water heater, open valve (8), close (5) and (4). After this, you can open the valve (2) and fill the tank, and then plug the device into the network.
Permanent drainage connection (middle tube)
Installing tees on both the cold and hot water sides significantly increases the ease of use of the system. Drainage works carried out like this:
Simplified connection
This scheme only simplifies the work of the plumber installing the device. Saving a penny on several valves, pipes and fittings will add a lot of worries to the boiler owner.
Drainage work is carried out in the following order:
Draining will take a lot of time, since the air will flow very slowly. To speed up the process, you can unscrew the nut of the boiler outlet pipe.
Simplified connection of a Haier water heater
This scheme is often used by unscrupulous plumbers sent by stores. Their main task is to get rid of them quickly. They use the cheapest materials and components, for example, an emergency valve without a lever.
Valve without lever. The spring will have to be pressed out with a screwdriver and held
With this installation, the first drain will be difficult. But if you cook necessary materials and tools, then it is better to bring the connection diagram to standard or improved. To do this, it is worth inviting an experienced master.
It is better to replace the valve without a lever with a new one.
After draining and then filling the boiler, it happens that air gets into it, forming a plug. At the same time, hot water flows in a thin stream, gurgling can be heard in the body of the device.
To remove the blockage you need to do the following:
If you managed to remove the plug, close all taps and remove the hose. If that doesn’t work, it’s better to call an experienced plumber.
If you use a storage water heater (boiler), an uninterrupted supply of hot water in the living space will be ensured all year round, regardless of any repair work. This practical device will be a good helper V country house, where there is no centralized system water supply Do I need to drain the water from the heater?
There can be many reasons for draining the contents of a water heater, but the main thing is to perform this procedure correctly. Despite the fact that the manufacturer's instructions describe in detail a diagram of how to drain water from the tank, difficulties often arise, because in some cases it is necessary to dismantle the electric heating device.
The device is a system that includes a thermally insulated container and a heat source located inside. Expensive models have a special control unit. With its help you can install the necessary temperature regime. In addition, if you have a control panel, it becomes possible to control energy consumption, since the device turns on only if the temperature of the liquid has dropped below the desired level.
The main advantages of a storage water heater:
Although a fairly simple device, the water heater is durable and economical. Its main components are an internal tank, a heating element and a heating element. True, they have now begun to produce models with more complex device. The principle of operation of a water heater is similar to the principle of operation of a thermostat. Due to this Special attention is given interior lining tank.
The household appliance consists of:
Cases when the liquid from the boiler must be drained:
In some cases, draining the water heater tank can even be harmful. Among the common situations that do not require mandatory emptying of the boiler are:
There are four options for quickly emptying a water heater:
Step-by-step instructions for draining water from a Thermex boiler:
First, make sure that the water heater is connected to plumbing system according to instructions. After checking the connection diagrams of all components with the existing boiler and making sure that the installation is correct, they begin to empty the water heater from its contents.
The correct algorithm for draining water from an Ariston boiler:
At the end, check whether the liquid has managed to drain completely. When using this simple method of ridding an Ariston water heating tank of liquid, it is important not to forget that it is important correct scheme connecting the device, otherwise you will have to face unforeseen circumstances.
The water heater is special device, which ensures an uninterrupted supply of hot water. Owners of these devices periodically face the task of draining liquid, which is not so difficult to cope with if you know the design features of boilers. However, models from different manufacturers may have certain design features. This article will discuss the rules for draining water from Thermex water heaters.
A water heater is a device that constantly heats water. Special place Thermex devices occupy the market for such equipment. The Italian company specializes only in the production of boilers and is known throughout the world as a manufacturer and supplier of high quality equipment.
The company produces several types of water heaters, which may differ in the following parameters:
The volume of Thermex boilers varies from 5 to 300 liters. The most popular on the market are devices with a volume of 80 to 100 liters. The design of the boiler may depend on the specific model, but in general it looks like this:
Draining liquid from a small-capacity boiler is the easiest. These devices are produced without a drain hole and are filled with water through the top. To empty the tank, you simply need to turn it over. It will be a little more difficult to remove water from devices with a separate drain hole.
Thermex water heaters do not require regular emptying. It is necessary to drain the water only in the following cases:
It is worth noting that certain situations do not require completely draining the water from the boiler. If the device is not used regularly, it will be enough to fill it with fresh water at least once a week. Thus, the liquid in the tank will not stagnate.
When you need to turn off the water heater for several months at once, you should not completely empty it either. It is recommended to leave at least some water in the container. Otherwise, corrosive formations may appear in the tank, and if you accidentally turn on an empty device, this may lead to a fire. When a Thermex boiler is under warranty, independent actions to repair or clean the device may lead to specialists refusing further service. At this time everything necessary actions The device should only be handled by service center technicians.
The process of draining water from boilers of different manufacturers is almost identical, with the exception of some nuances. Before emptying your Thermex water heater, it is recommended that you do some preparatory steps. First of all, the device is disconnected from the power supply. This measure is necessary for safety reasons, otherwise the equipment may fail and the person working with it may be injured.
It is also necessary to turn off the water supply taps in the house so that water does not flow into the tank. The equipment is left untouched for some time so that the water in the container cools down.
As mentioned earlier, Thermex boiler models vary in shape and size. Flat devices of large volume are equipped with two holes for the supply and outflow of water, to which tubes are connected. Before draining water from devices of this type, the tubes must be removed. Thermex water heaters of small volume and round shape work on a different principle. In order to empty this type of device, it is enough to turn off the cold water supply and pour out any remaining liquid from the tank.
There are several ways to drain water from Thermex water heaters.
A storage water heater is a vessel that is under pressure, so it will not be possible to drain water from it simply by opening the hot water tap and turning off the cold water supply. Only part of the water will flow out over the hot water pipe. To free the heater from liquid, it is necessary that air enters the tank.
General rules for draining electrical water storage water heaters Thermex, Ariston, Electrolux, Polaris, Haier, Garanterm, Oasis, Timberk, Gorenje, Aquaverso, Real, Deluxe, Atlantic, Standard are as follows:
Let's look at how to quickly drain water from some water heaters brands taking into account the manufacturer’s recommendations and the features of their device.
after completing the above steps 1 - 4 should be disconnected safety valve or open the drain valve on the tee. The valve is easy to unscrew; to do this, you need to remove the nut connecting the pipe to the valve, and use an adjustable wrench to disconnect the valve from the pipe in a few turns.
Place a rubber or plastic tube on the freed fitting, the other end of which is lowered into the sewer. Among the Termex line there are models that have a drainage pipe; in this case, you should remove the plug from it and connect a tube or rubber hose to it, through which the liquid will flow.
Heaters Ariston ABS BLU ECO 50-80-100 liters, Polaris have a drain valve on the tee, which is located between the safety device and the fitting. To drain, open the tap after connecting a drainage pipe to it, which is discharged into the sewer system.
drainage is carried out through a non-return safety valve. Using a screwdriver, unscrew the protective screw on the valve flag and lift it up. Combustion units have valves with both a lever and a rotating head, depending on the modification.
A drainage tube is placed on the spout of the device, through which water flows into the sewerage system or into some container. In this case, leakage from under the rod is allowed.
It often happens that the liquid does not drain. This means that the valve is clogged with scale from the tank. In this case, washing it will help. Is it necessary and possible to install a tee with a tap for draining water on these models?
Manufacturer allows additional installation tee with a tap between protective device and a bushing for faster draining. If the atmospheric pressure is sufficient for the draining process to begin, you need to lower and raise the flag from time to time. If it is not enough, you need to force air into the unit.
Boiler with tee for quick drain
To do this, you need to unscrew the output connection (American females, fittings) located as close as possible to the heater. If this is not possible, you should put a hose of the appropriate diameter on the mixer and blow forcefully into the hose or use a pump for this purpose.
Features of draining the Garanterm, Elektrolux models - disconnect from the power supply, drain the hot water through the mixer, close the cold water supply valve, connect a rubber or plastic hose to the drain valve or cold water supply pipe, first unscrew the safety device, open the hot water tap on the mixer and drain valve, and drain the water into the sewer.
the unit has a separate drain pipe located at the bottom and right of the unit. A drain is placed on the pipe with a discharge into a container or sewer. Draining can also be done using a safety device.
Experts believe that for faster and more reliable drainage, it would be correct to install a tee with a valve in front of the valve and using metal-plastic pipes connect to the sewer system.
When draining the liquid using any of the above methods - using a safety valve, a valve on a tee, or a separate pipe - it will not be possible to drain all the liquid from the tank.
Even if from drainage device nothing is drained anymore, a certain amount of water still remains there, approximately 8 liters in a 50-liter water heater. This should be taken into account if you need to change the heating element or when you drain the water from the water heater for the winter in the country.
Of course not, to do this, just unscrew the heating element and all the liquid will flow out through the mounting cavity.
When it is necessary to repair the boiler, when it is necessary to clean the tank and its heating elements from scale, when replacing the anode, when the heater remains in use for a long time unheated room for the winter, at temperatures below 0 degrees, for example, in the country.
Simple draining of water - the whole process on video:
Modern market household appliances is distinguished by great diversity. Manufacturers regularly offer their consumers new, more improved models. These include water heaters. Correct operation and compliance with all instructions specified in the instructions will help extend the life of the equipment.
Water heaters, or boilers, have taken a strong position in almost every apartment or private house. They provide housing with a regular supply of hot water, helping not to depend on central utility systems. A seemingly simple device actually has complex design and performs quite responsible functions. It automatically maintains the temperature of the water in it.
The modern market of similar household appliances presented in wide range. Each owner will be able to find a device suitable in design, size and pricing policy. Despite the external differences, all water heaters are designed according to the same principle.
Hidden inside the case is a heating element - a tubular electric heater that is directly responsible for heating. It and other parts (safety valve, magnesium anode) are protected by a thermal insulation layer that runs between the outer and inner walls of the housing.
At the bottom of the structure there is a thermostat, which is responsible for the ability to regulate the temperature. On the outer walls there are special fastenings for possible installation of the water heater on a wall or other surface.
Several simple and familiar components are responsible for executing important functions and have the convenience of using the water heater.
From time to time it may be necessary to drain the water to empty the boiler tank. Many people are interested in whether it is necessary to drain the water from the water heater for the winter. Let's consider cases when you need to drain the water.
Possible situations:
It is not recommended to carry out liquid drainage procedures unless absolutely necessary. Ideal option there will be devastation storage tank 1 time per year.
Experts identify several methods suitable for draining water from a water heater. A competent approach and compliance with safety precautions will help carry out the draining process quickly and without injury or burns.
Reference. Before carrying out the procedure for draining the liquid, you must read the instructions for a more detailed understanding of the design of the water heater.
Several ways to drain water from a water heater:
Following all the steps during operation will help empty the water heater tank.
Any of the above processes does not guarantee complete drainage of water. To thoroughly empty the boiler, it is necessary to disassemble it. To do this, carefully unscrew the cover on the bottom surface and carry out the process of disconnecting the wires.
When disconnecting the wiring, you will need to remember all the details of the initial connection to continue operation. The flange serves as a support for the tubular electric heater; it must be unscrewed counterclockwise. Slightly loosening the nut will allow the liquid remaining at the bottom to drain.
After complete emptying, you can completely unscrew the flange. When removing the heating element, difficulties may arise due to scale and rusty deposits on its surface. To do this, you can gently rock the water heater, gradually pulling the heating element up.
In the process repair work safety regulations must be followed. This will help avoid potentially dangerous injuries and burns, and also extend the life of the water heater.
First of all, experts do not recommend draining the water yourself, provided that the device is still under warranty. Even minor damage will void the warranty. In this case, it is better to turn to professionals for the service.
Before carrying out repair work, the device must be disconnected from the power supply network, and the liquid in the container must be allowed to cool to room temperature. This will prevent the possibility of burns.
It is not recommended to drain water unless absolutely necessary. IN empty state The inner casing of the boiler is more susceptible to corrosion. The ideal option would be to clean the internal walls and replace the necessary parts once a year.
Electric water heaters steel constant companion in any apartment. Timely care, compliance simple recommendations and safety precautions will help you carry out repair processes yourself and extend the life of the device.
