Methods for connecting a water heater. Connecting a storage water heater with your own hands. Self-installation of an electric boiler

In this article we will take a closer look boiler electrical diagram And how to connect a boiler to electricity.

First, let's look at a typical electrical circuit of a boiler - electric water heater, what main components it consists of, why they are needed and how they interact with each other. Then we will look at how to connect the boiler to electricity, i.e. To electrical network.

Electrical diagram of the boiler.

Let's look at the general electrical circuit of the boiler, when a separate knob for adjusting the water heating temperature is placed on the front panel of the tank, and the temperature regulator and thermostat (thermal relay) are made separately.

The electrical circuit of the boiler consists of the following components:

— thermostat;

- thermostat;

- indicator lamp.

Supply voltage at zero N ( of blue color) and phase L (red) wires are supplied to the boiler, in our circuit to the thermostat input terminals. Null protective wire The PE is connected to the body of the water heater tank using a screw.

From the output terminals of the thermostat, the zero is connected to the first contact of the heating element, and the phase is connected to the input connector of the thermostat. The output connector of the thermostat is connected to the second contact of the heating element. The indicator light is connected to the output zero terminal of the thermostat and to the output connector of the thermostat (phase).

IMPORTANT!

Before connecting the boiler to the electrical network, it is necessary to fill its tank with water. Otherwise, the heating element will overheat and fail.

So, we fill the water heater with water, use the temperature regulator knob to set the desired water heating temperature, turn on the electrical protection device in the electrical panel, thereby supplying supply voltage to the electrical circuit of the boiler.

Since the water is cold, the thermostat circuit is closed, the indicator light is on, indicating that the water is heating, current passes through and the water in the tank heats up.

When the set temperature is reached, which is measured by the temperature sensor of the thermostat, the thermostat breaks the power supply circuit of the heating element, the indicator light goes out, and the water begins to cool.

When the water temperature in the tank drops below a certain value, the heating element’s power circuit closes and heating begins again. This is how the process of maintaining constant temperature water in the tank.

The thermostat acts as a fuse. If for some reason the water temperature in the boiler exceeds permissible value, the thermostat breaks the zero and phase wire, turning off the power from the heating element and thereby preventing overheating of the water in the boiler.

In some models of water heaters, the thermostat and thermostat are combined in one housing, but the operating principle of the circuit does not change.

How to connect the boiler to the power supply network.

Now let's look at how to connect an electric water heater to?

In the diagram above, the boiler is connected to the electrical network through an RCD and installed in series with it circuit breaker.

RCD protects against possible damage electric shock in case of current leakage due to breakdown on the housing or damage to the insulation, and the circuit breaker protects the circuit from possible overload or short circuit.

In this scheme, the cable from the electrical panel is directly connected to the boiler input terminals, i.e. the protective casing is removed, the power cable is inserted, connected to the appropriate terminals and closed back with the protective casing.

For details on which RCD to choose, with what parameters, which circuit breaker, what rating and characteristics, how to correlate the parameters of the machine with the parameters of the RCD, how to calculate the required cable cross-section, see.

The diagram below shows an option for connecting a water heater through an electrical outlet.

Connects to the cable coming from electrical panel, and the cord with a plug from the boiler is connected to this outlet.

I would like to note that connecting directly to the boiler terminals, without using an intermediate socket (as in the first diagram) is more reliable and preferable.

Well, instead of a bunch RCD+circuit breaker you can use a difavtomat.

In this circuit, phase and zero are connected directly to the boiler input terminals. In this case, the zeros before and after the difautomat should not have common connections.

This circuit can also use a connection via a socket. The socket is installed in the line after the automatic machine, and a plug with a cord from the boiler is plugged into it.

In the connection diagram of the boiler to the electrical supply network, it is advisable to use a separate line made with a cable of the required cross-section with the installation of a separate electrical protection device.

Watch the video for more details Boiler connection diagram:

Useful materials

IN summer period, due to shutdown hot water, many of us are puzzled by buying an electric water heater or boiler for heating water. The choice of boilers on the market is quite large. They come in both flow-through and storage types. There are also enough manufacturers. Among the most popular are companies such as, Electrolux or.

Buying a water heater is not difficult, but it also needs to be installed correctly. The principle of installation and connection of the boiler is the same for most models and rarely depends on the manufacturer. Today we’ll talk about how to connect a boiler to a water supply in the apartment correctly, we will analyze all the details of the connection and the materials that are best used, as well as how to drain the water from the boiler accumulative type.

Connection storage water heater(boiler)

In order to correctly connect the water heater to central system water supply, let's look at the tank itself. For connection, any water heater has two threaded fittings.
On some models, there is also a third fitting. It is needed to drain the remaining water from the tank when dismantling it. The connection with the blue ring is the entrance cold water, with red - hot output.

Before connecting the boiler with your own hands, you need to decide in advance how you will connect it. There are three most common connection types:

- for polypropylene pipes;

- for metal plastic pipes;

- for flexible hoses.

Metal-plastic is gradually leaving the market, giving way to pipes and fittings made of polypropylene. Of course, the easiest way is to connect the tank to flexible hoses, but they have a very narrow nominal bore, and this can affect the performance of the water heater.

We recommend connecting the water heater to polypropylene. You may have to tinker a little, but the connection will be of high quality and will look much better and more pleasant from the outside. As a rule, the diameter of the fittings on most water heaters is 15 mm or half an inch 1/2.

Connecting the boiler with flexible hoses

Necessary material for connecting the boiler to the water supply

— two polypropylene couplings with American ones;

— ball valve made of polypropylene;

- tee made of brass;

- brass;

— non-return safety valve;

- meter of polypropylene pipe and steam couplings for soldering;

- apparatus for soldering pipes.

American couplings are needed to transition from metal half-inch threads to polypropylene. In addition, American women can always unscrew and dismantle the boiler. A polypropylene tap must be placed at the outlet of the water heater to shut off the flow of water from the tank.

Connecting a boiler to polypropylene

Why is a non-return safety valve needed?

This valve usually comes with the boiler; without it, the water heater will not work correctly. It has two ends with outer and internal thread. The thread diameter is standard 15 mm. We screw one end of it onto the inlet fitting of the boiler, and then screw a coupling with an American connection or a flexible line onto the other end.

The valve performs three functions:

— prevents the flow of water in the opposite direction;

— prevents a surge in excess pressure in the tank itself.

— discharge of water into the sewer through a special drain

Connection diagram of the boiler to the water supply

How to drain water from a boiler

If the tank body does not have a special outlet for draining water, then you can install a threaded tee made of brass or polypropylene at the inlet in front of the check valve, or at the hot water outlet. And we put a brass ball valve on the side of it, preferably with a “butterfly”. He will take less space than a tap with a long lever.

This tap can be pre-pulled, for example, a regular one for draining water, into a container prepared in advance for this purpose. In the event that it is necessary to completely drain the water from the boiler, simply open the tap and wait until all the water flows out of it.

After you have hung the boiler and connected everything, you need to check all connections for leaks. As you can see, connect the boiler to the water supply Living in an apartment is not as difficult as it seems at first. If you do everything correctly and slowly, you can save some money on the services of installation companies. Watch the video.

It is impossible to imagine comfortable living in an apartment or house without hot water. IN multi-storey buildings Accidents and power outages often occur hot water, planned shutdown etc. As for private houses, the provision of hot water falls entirely on the owners. Therefore, purchasing and installing a water heater is sometimes the only possible solution this question.

Connecting a boiler is one of the most difficult tasks, since it requires connecting the unit from the mains, both cold and hot water. Very important point- location of the boiler in relation to the pipes. It should be installed as close as possible, since the longevity of the system depends on it. The quality of the materials used is also very important. Flexible metal hoses, plastic pipes, tees, etc. should be as High Quality. Don't skimp on materials.

Boiler installation algorithm:

• Fasteners
• Installation of shut-off valves
• Installation of a water inlet and outlet system from the boiler
• Electrical connection

Sequence of work:

• Shutting off the water supply pipe to the apartment
• Making cuts in pipes (in the right places)
• Installation of a branch to the boiler connection point
• Installation of tees
• Installation of shut-off valve
• Connecting flexible hoses to the shut-off valve (for connection to the boiler)
• Blackout of an apartment or house
• Connecting the cable to the electrical panel
• Installation of RCD
• Installation safety switch

Boiler connection diagram

Types of boilers

Water heaters are divided according to the principle of operation:

• flow-through;
• cumulative.

Classification is also based on the following parameters:

• size;
• form;
• heating system (direct, indirect, combined).

Flow-through boilers

They have disadvantages that make them not very profitable for apartments in high-rise buildings:

• In such water heaters there is no water tank, and the water is heated by a heat exchanger using a heating element. This device requires high power and water pressure in the system. The minimum pressure in the water supply system must be no lower than 0.3 atm.
• Using instantaneous boiler The water pressure will be low and the water will not be very hot.

Storage boilers

Such water heaters are much more popular. They come in pressure and non-pressure types. The main disadvantage without pressure boiler- low water pressure. The advantage of such a unit is a supply of water in case it is not available in the water supply system. The pressure in the pressure boiler system is equal to the pressure in the water supply system.

Storage water heaters are also divided according to the water heating system:

• straight;
• indirect;
• combined.

Direct type water heaters operate on the principle of a conventional electric heater; they are equipped with a heating element (water heating element). Tautology of one sentence.

Heating elements, in turn, are:

• dry;
• wet.

An indirect type water heater operates due to heat exchange between the coolant (heating boiler) and tap water. A significant disadvantage is that it requires the operation of a heating boiler all year round, and also requires installation of a boiler in close proximity to the boiler.

The combined type of water heater combines the properties of direct and indirect types. IN winter period such a device can operate from a heating boiler, and in the summer on the principle of a conventional water heater. A combined water heater is the most profitable and convenient.

Both instantaneous and storage boilers are available in pressure and non-pressure types. In non-pressure units there is no internal pressure - the pressure inside the water heater is almost equal to atmospheric pressure.

Pressure boilers mean high pressure inside the tank. As a rule, it is equal to the pressure in the water supply system.

How to choose the right boiler

First of all, you need to decide on your needs, namely:

• with installation location;
• boiler shape (vertical or horizontal);
• volume (how much hot water you will need);
• type of water heater (instantaneous or storage).

You should also take into account the number of people in the family. How more family, the larger the required boiler volume. You should also consider the purpose of the installation: if you need a boiler for the kitchen, you can limit yourself to a small volume of 10–15 l or 30 l. If you need it in a shower or bathroom, then the volume should be at least 80–100 liters.

Connecting a storage boiler

What to look for when choosing:

• Body shape. The price depends on this. Round boilers are cheaper, but take up more space. Aggregates rectangular shape more expensive, but they are more compact and convenient.
• Case material - steel or plastic.
• Color spectrum.
• The material from which the tank is made. Such material can be enameled or stainless steel. Stainless steel tanks resist corrosion better, but at the same time great importance has the quality of seams, since even stainless steel can be subject to corrosion at welding points.
• Heating element type (dry or wet). Devices with dry heating elements are more expensive, but wet heating element has a number of significant disadvantages, since it works on the principle of a boiler. Both on the heating element and on inner surface Scale quickly forms in the tank, which leads to overheating and increased energy consumption and reduced service life.
• Warranty support. This should be noted Special attention, since providing a long warranty can be a guarantee of high quality. If there is no guarantee, then it is better to refrain from purchasing - most likely the product is defective.
• Price. You should not buy a water heater that is too cheap; there is a high probability that it will be of poor quality and will not last long.
• Massiveness. A quality product weighs quite a lot. This means that the steel from which the tank is made is thick enough, so the product is of high quality and will last a long time.

What you need to connect

Tools and materials:

• mounting level;
• pliers;
• marker;
• Phillips screwdriver;
• 2 water hose(flexible);
• 2 dowel-nails with a hook at the end;
• tap (valve) with a diameter of 10 mm (according to the diameter of the water pipe);
• sanitary linen;
• adjustable wrench;
• roulette;
• perforator;
• safety valve (included with the boiler).

Schemes and drawings

As you know, an electric boiler has two types of connection: to the water supply system and electrical.

Boiler connection diagram

In order to correctly install the unit and at the same time comply with safety measures, there are diagrams. They are made in the form of drawings with designations of the main elements of the system. There are two types of circuits: wiring and electrical.

Wiring diagram

It schematically shows the main parts of the system, their sequence and location. IN in this example shows the installation locations of shut-off valves, tees, check valve, the water circulation in the system is schematically shown (cold water inlet and hot water outlet, its supply to the mixer). Such a diagram can be found in the factory instructions that come with the unit.

Classic wiring diagram:

• Stop valve.
• Mechanical cleaning filter.
• Tee on the water supply cold pipe(leads to the boiler and mixer).
• The second shut-off valve is on the approach to the boiler.
• Safety valve to prevent water from leaking in the opposite direction.
• Tees that connect directly to the boiler - one for cold water inlet, the second for hot water outlet to the mixer.
• Water line diagram.

Boiler connection diagram

Electrical diagram

The electrical diagram shows:

• Wiring leading to the tank (originates from the electrical panel).
• Three lines of wires (zero, phase, ground conductor). On the diagram they are always marked with different colors.
• System elements: plug, grounding socket, double circuit breaker (switch). This required element, which makes it possible to completely disconnect the water heater from electricity if necessary.
• The location of the meter, electrical panel, and grounding are also shown schematically.

All this is depicted using symbols, the decoding of which is necessarily attached to the diagram.

Installation and connection process

Fastening the boiler in stages:

1. Choosing a place where the water heater will be located. It must necessarily provide access to it for the entire period of its operation.
2. Assessing the condition of electrical wiring and pipelines. The wiring must withstand the load when the boiler is operating, and the condition of the pipeline must meet the requirements for the operation of such equipment.
3. Drilling holes for mounting the water heater, after which fasteners are installed, and the boiler is secured using anchors and dowels.

Connection to water supply

1. Before connecting the boiler to the water supply system, it is necessary to remove all the necessary tees in order to ensure the supply of water both to the boiler and from it to the mixer. If desired, a water filter can be installed.
2. Next, you should pay attention to the tubes that are located at the bottom of the water heating tank. They usually have identification rings: blue - cold water; red - hot water. A safety valve must be attached to the tube with a blue ring - it can come complete with the boiler, or can be purchased separately. Installation of such a faucet is mandatory!
3. Before attaching the safety valve, you should wrap it around the thread. sanitary linen or sealing tape.
4. A flexible hose is attached to the bottom of the safety valve.
5. The second flexible hose is attached to a tube with a red ring.
6. The next step is to secure the other end of the flexible hose that is attached to the safety valve. In this case, its second end is attached to water pipe- this line will supply water from the water supply to the tank. Before attaching the soft hose, you should install a tap so that you can turn off the water supply if necessary.
7. The free end of the flexible hose (attached to the tube with the red ring) must be connected to the pipe that leads to the faucet. This line of hot water exiting the tank and supply goes to the mixer.

Electrical connection

What you will need:

• Distribution board.
• Cable of the required length and cross-section (three-core).
• 16A circuit breaker.
• Device protective shutdown(RCD), designed to operate with a current strength of more than 16A.

Sequence of work:

1. Route the cable to the distribution panel (cable cross-section must be at least 2.5 mm, copper conductors).
2. Connecting an RCD (residual current device) - this device will protect against electric shock in the event of a boiler malfunction. The RCD often comes complete with the boiler itself.
3. Carrying out electric cable from the shield to the boiler.
4. Installation of a circuit breaker (double), which must be designed for a current of at least 16A. It protects the network from current leakage through insulation damage.

When installing a boiler, a double circuit breaker must be installed. If we're talking about about a private house, then the presence of a grounding circuit is mandatory. This is dictated by safety regulations.

Due to the fact that water heaters are presented in a variety of options that suit any need, you don’t have to worry about being left without hot water. It is water heaters that guarantee convenience under any conditions. Their work does not depend on weather conditions, nor from utilities. Even if there is no centralized supply of hot water, if you have a boiler, it will always be in your home.

An electric boiler is usually used to heat water needed for bathing and technical needs. This type of water heater, due to its small sizes can be installed anywhere: in the bathroom, on kitchen, toilet and even under the sink, if the unit flow type. Next, we will look at where and how to properly connect the boiler to the electrical network with your own hands.

Scope of application of the water heater

People very rarely talk about using an electric boiler for heating, but such an option still exists. It is recommended to use it if the room does not have complex system heating, and the power of the unit is sufficient for normal functioning(usually 1 kW can serve 10 sq.m.). In order for it to heat a small house, it is necessary to additionally install circulation pump, otherwise hot water will not be able to effectively distribute through the radiators (there will not be enough pressure).

Please note that there are storage and flow-type devices. The first version of the electric boiler consumes less electricity for heating, but requires a certain place to place the container. The second option is more compact, but due to its increased power it consumes an order of magnitude more electricity.

Requirements for electrical installation work

So that readers of "" do not put their lives in danger and can easily connect an electric boiler to the network, we provide several simple rules things to consider:

1. Be sure to turn off the power at the main panel during installation work.
2. Connect wires only through terminal blocks or soldering. There should be no “grandfather’s” twists.
3. Take care to protect the water heater and ground it. If in the house two-wire network, be sure to make a grounding system on the site. As for apartments of the old type - Khrushchev-era apartments, in which very often there is no grounding, here you can get out of the situation by connecting the boiler through an RCD and an automatic circuit breaker. You can also connect to the power grid through, which combines two types of protection. In the event that there is no “land” at the dacha, difficulties should not arise, because... PE protection is not at all difficult to do yourself.
4. Since water will pass near electrical appliances, take care of high-quality protection of electrical wiring from moisture. Buy sockets with a degree of protection of at least IP44, and the RCD must be in a waterproof housing.
5. If the unit will be connected directly to the network (not through an outlet), use a non-flammable cable or its higher quality version - NYM.
6. Mounting to the wall must be secure. Typically, the tank capacity can reach 100 liters. The thickness of the anchor in this case must be at least 8 mm. It is not recommended to install a boiler on a plasterboard wall. In this case, it is better to place the water heater on the floor.

Main process

Instructions for connecting the boiler to the electrical network will be provided from the point when all heating system will be brought to the installation site of the unit. All that remains for you is to hang the water heater on the wall and connect it to the power supply.

Wall mount

Let's consider more difficult option, when the installation of a storage type boiler will be used, because installation of a walk-through water heater is less labor-intensive (due to the lighter weight and dimensions of the product). First you need to mark the wall in accordance with the placement of the fasteners. To do this, measure the distance required to install the mounting ears and transfer it to the wall. Be sure to use a building level so that the ears are placed strictly horizontally.

Any misalignment will affect the performance of the unit, and therefore its service life and efficiency of use. The tank must be placed perfectly level in both horizontal and vertical planes.

After marking, take a drill, drill holes in the wall and drive dowels into them. Next, we screw the anchor hooks into them and hang the boiler on the wall, as shown in the photo below.

Don't worry about decorative finishing walls Even if renovations have already been made in the apartment, with careful installation you will not damage the surface. Detailed instructions for installation and connection of the boiler wall type You can also see in the video example:

How to install a water heater on a wall

Connecting wires

Once the water heater is securely mounted on the wall, you will need to install the electrical wiring to it yourself. Let's consider two existing options connecting the wiring from the meter.

Option 1 - Powered from a wall outlet

This option is used if the unit power does not exceed 3.5 kW. In this case, it is necessary to connect the socket to the place where the boiler is connected to the electrical network, as shown in the diagram above. The minimum cable cross-section should be 2.5 mm2. (copper conductors). It is recommended to carry out this in advance so that it can withstand the resulting loads.

Option 2 - Power from the shield

If you purchased a device with a power of more than 3.5 kW, it is prohibited to use power from the outlet, because it simply will not withstand such a load. In this case, it is necessary to connect the cable to the water heater directly from the electrical distribution panel installed in the apartment or house.

Please note that connecting the boiler to single-phase network can be carried out if its power is no more than 4 kW. If the rated power is higher, the network must be three-phase (voltage 380 Volts).

After you decide on how to connect the boiler to electricity, you need to power the device yourself and move on to the next step. The video below discusses various schemes water heater connections:

Electrical installation diagrams

Setting up protection

Since when creating a heating system you will be dealing with powerful equipment, as well as the close location of water and current, you need to take care of protecting the boiler and yourself.

First of all, you need to install a circuit breaker to the line that will serve the unit. If the power will be supplied from an outlet, it is recommended to install protective equipment on switchboard. In the event that the power will come directly from the shield, the protection devices must be located near the object itself so that it can be conveniently and safely serviced. Do not forget that when placing RCDs and AVs close together, it is necessary to ensure that the devices are protected from moisture. To do this, it is recommended to place the products in a sealed box.

In a 220 V network, it is necessary to connect the electric boiler through a two-pole circuit breaker. Remember important rule— the automation is installed with an upper connection of the input phase and zero.

First start

When all electric installation work will be completed, you should proceed to starting up the equipment. The first step is to check everything and pipes for integrity and tightness. If no abnormalities are detected, you can proceed to turn on the power supply. To do this, first open the valves on the pipes (cold and hot circuit), after which you can turn on the machine and the RCD. We strongly recommend watching the video instructions, which clearly explain the entire process:

Video lesson: connection electric boiler to the network and pipeline

Finally

Installation and connection of an electric boiler for heating is recommended for small houses and apartments. In cottages and spacious private houses it is better to do this, because... it is more powerful and is able to heat the room more efficiently. If you are still determined to use of this type water heater, be sure to add a circulation pump to the system so that hot water passes under pressure into the radiators, thereby heating the rooms more efficiently.

Materials

IN Lately have become increasingly popular electric water heaters. This allows you to not depend on utilities and always be provided with hot water. To install boilers, no special permission from supervisory organizations is required and can be done with your own hands if you have at least minimal plumbing skills. So how to connect the boiler in such a way as to avoid mistakes?

Preliminary work

Depending on the type heating device the procedure for connecting the water heater to pressure pipeline. As such a device in houses and apartments they use either an electric boiler or a gas water heater. Other types of heaters, such as flow-through electric speaker or storage gas boiler are not very popular.

Preliminary work should begin with the installation of the water heater. To do this, you need to decide on the place where the boiler or column will be located.

The column should be placed not far from the free valve of the domestic gas pipeline in a room that should be well ventilated. Exactly That's why geysers most often installed in the boiler room or kitchen, where there is an exhaust hood and a branch from the gas pipeline.

A storage boiler can be installed anywhere, because water and electricity are supplied anywhere. However, before connecting, take into account the fact that a filled heater weighs a lot, as well as its accumulative nature, which limits the volume of hot water. As a result The boiler is installed on load-bearing wall , which is located at the same distance from the bathroom and kitchen. If the layout of the apartment is such that the kitchen and bathroom are “scattered” throughout the house, then you should purchase two boilers. Otherwise, the water, coming from the heater to the point of consumption, quickly cools down.

To connect storage boiler, you will need the following items:

• gas and adjustable wrench;
• tees for inserting into pipelines;
• polypropylene or metal-plastic pipes and fittings for them;
• Mayevsky crane;
• Screwdriver Set;
• shut-off valves Ball Valves;
• tow with paste;
• safety and check valve.

As additional element filter can be used rough cleaning water.

Pipeline tapping

The storage water heater is connected to the water supply using a tie-in into existing pipelines. If the hot water distribution in the apartment is made of metal-plastic or polypropylene pipes, then it is necessary to cut the lines very close to the device and install tees at the cut points. Don't forget turn off the water before starting work.

If tees are installed in a polypropylene pipeline, then you will need a device for installing this material. If the pipes are metal-plastic, then the tees are installed using an adjustable wrench.

If in an apartment metal pipes, That welding machine may not be used. Instead, a special clamp is used for insertion. It should be secured to a previously cleaned pipe and tightened with screws, and then a hole should be drilled through the outlet pipe in the water pipe. Thanks to the protective plastic sleeve, the threads inside the pipe cannot be damaged, and the rubber backing, which is located between the fitting and the pipe, ensures a tight connection.

Shut-off valves must be connected to the installed tees, from which the connection to the boiler should be made with polypropylene or metal-plastic pipes. The use of polypropylene pipes allows them to be hidden in the wall without the risk of future leaks.

Boiler connection diagram

The water heater is connected according to a specific scheme. This boiler connection diagram provides for installation in mandatory safety and shut-off valve. You can also use the inexpensive solution included in the package, and some people assemble a security group with their own hands. In this case, the elements are installed on the inlet pipe of the water heater in the following order:

• tee;
• ball valve used to drain water from the container;
• safety and check valve;
• shut-off valve;
• pipeline.

If such a need arises, a reducer is installed on the supply pipeline, which reduces the water pressure, and a coarse filter.

A tee should be installed on the “hot” pipe. A pipeline that is laid from the hot water supply system and a shut-off valve are connected to its direct outlet. A an additional ball valve or Mayevsky valve is connected to the side outlet of the tee. Such elements are necessary so that there is no vacuum in the tank when draining water during maintenance or repair.

Thanks to this connection scheme, the water supply to the boiler can be shut off if it is necessary to remove it, without turning off other water points. However, you can continue to use centralized water supply, simply by opening the valve at the entrance to the apartment. When the storage boiler is operating, this tap must be closed, otherwise the unit will heat water for all neighbors.

How to connect a water heater to a water supply

The connection diagram of the water heater to the water supply depends on the power of the boiler, namely, how many water points it can provide. If it is used for one tap over the sink or shower head, then in this case the connection is very simple. Simply make an insertion into the pipeline with cold water, using fittings for polypropylene or metal-plastic. If the pipes are metal, then use a crimp clamp.

One end of the ball valve is connected to the tee, and the other is connected to flexible hose, thanks to which cold water will flow to the inlet pipe of the water heater.

Sometimes they buy a boiler with a low capacity and a shower head. Use it only when the hot water is turned off. In this case the device is connected directly to the corrugated shower hose, having first removed the watering can from it. Cold water is supplied by opening the mixer to the “shower” position.

If you need to connect the water heater to two or more water collection points, then it is necessary to arrange a special piping using additional locking devices and splitters.

The connection diagram for a flow-through device that supplies water to several hot water consumers is a simplified way to connect a water heater.

For the device, you should choose a location that will be located away from all water collection points. After this, follow these recommendations:

• Tees are cut into the hot and cold water supply pipelines.
• Ball valves are installed on the tees. Thanks to this, the device can be removed without cutting off the cold water supply.
• Connect the necessary outlets of the water heater to the taps using flexible wiring or using polypropylene or metal-plastic pipes.

After cold water supply it is necessary to plug in the water heater and check all connections for leaks. If the need arises, then all the seals can be made better without tightening the nuts too much.

Conclusion

Connecting a water heater to a water supply is a rather complicated process. Without correct scheme connections and necessary recommendations It's easy to make a mistake. Therefore, without having at least minimal knowledge in this area, it is better to invite a professional to do the work, who will do everything efficiently and reliably.