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A doorbell is an important attribute of any front door or gate. He notifies the owners about the arrival of guests. Proper operation of the device depends on proper connection. The doorbell circuit is very simple. However, the sequence of actions is determined by the type of device. Before connecting a bell in an apartment or private house, you need to familiarize yourself with the features and types of the element, which determines the choice of installation scheme.
The bell is the main attribute of doors to apartments or private houses
Types of doorbells to an apartment or to the gate of a house
Doorbells come in a wide range. The devices differ in operating principle, design, connection option, functionality and cost. Based on the connection option, doorbells for the home can be mechanical, electromechanical and electrical. The first type of device was used in ancient times. Such a call was presented in the form of a bell that was hung inside the house on a cord. The other end of the rope was brought out. This element is also a decorative decoration for the hallway.
Modern doorbells can be wired or wireless
The bell made a sound when the free end of the rope was pressed or when the front door was opened. This option can still be found today on the gates of houses decorated in retro style, which are framed by a low fence.
An advanced device is the electromechanical doorbell. It has a simple design, which includes a signal button installed outside the home, a resonator located inside the room, and an electrical cable connecting these two elements.
The resonator is represented by a coil that has a wire winding, which can be seen in the doorbell diagram. When voltage is applied to it, an alternating electromagnetic field appears. This causes the metal hammer to vibrate and strike the metal bowl. This action is accompanied by a characteristic sound.
The resonator coil may contain a core that will perform reciprocating movements under the influence of an electromagnetic field, striking the plates on both sides, which will be accompanied by a characteristic sound.
By type of connection, calls can be electrical, mechanical and electromechanical
For such a call one or two buttons can be used. The second option for installing a doorbell is used if it is necessary to send a signal from different places. For example, from the front door and gate in a private house, at the entrance and door of an apartment in a multi-storey cottage.
Important! The buttons work independently of each other; pressing any of them closes the circuit.
Operating principle
Once you understand this, it’s easy to understand how to connect a call. It consists of a magnetic system with a contact group. When voltage is applied by pressing the button (the circuit is closed), the armature is attracted to the core. A hammer located at the end of the movable contact, periodically striking the metal cup, initiates the appearance of sound waves.
Consequently, the bell is always connected in such a way that current flows through the winding of its magnetic system when the button contacts are closed.
It turns out, nothing special. Any doorbell connection diagram (and it is not difficult to develop it yourself) is based on this principle. And no matter what kind of signaling device is purchased, or how the wires are laid, nothing changes. If we are talking about wireless modification, it’s even simpler. Here you don’t have to think about how to connect. The main thing is not to confuse their poles (“+” and “–”) when installing batteries.
Characteristics of modern electric calls to the apartment: wired and wireless
A modern, improved design is the electric doorbell for an apartment or house. The device is assembled on the basis of microcircuits. The call is equipped with a built-in speaker that generates a variety of sound melodies. This device has advanced functionality. When closed, the bell is a plastic box from which pieces of wire for connection or terminal connections come out.
The bell is represented by a magnetic system with a contact group. At the moment the voltage is applied, which occurs as a result of pressing the button, the circuit is closed, which entails the attraction of the armature to the core. At the end of the movable contact there is a hammer, which periodically strikes the metal bowl, initiating the appearance of sound waves.
An electric doorbell is the most common option
An electric doorbell can be wired or wireless. The first version of the device is similar to the electromechanical type (they have the same connection diagram). However, there are models of wired electric calls to an apartment that will operate from a voltage of 12 V or from autonomous power sources. In the first case, before connecting the device, you must install a step-down transformer. The second option involves using the power supply included with the device.
Wireless calls for apartments and houses are more convenient to use. The device button is self-powered. For normal operation of the device, it must be located in the signal transmission area for the bell. There are wireless models that operate on a 220 V network. They are plugged into a stationary outlet, and the button runs on batteries. There are options in which the call itself functions autonomously.
Ultra-modern models of wired and wireless intercoms for an apartment or house have advanced functionality. They are equipped with video surveillance and sound recording functions that start working the moment you press the device button. Premium models are additionally equipped with remote control devices that allow opening doors or gates. This is the most convenient option for private cottages.
Design and types of electric bells
Based on the principle of operation and design features, electric models can be divided into 2 large categories: electromechanical and electronic. They are united by the principle of operation - a sound is heard when you press a button. At this moment, the contacts are closed and voltage is applied.
The sound in electromechanical bells is produced by the operation of an electromagnetic coil and the interaction of the striking mechanism with the electric plate. These models have no adjustment, and the quality and volume of the sound depend on the material and size of the plate, hammer and bowl.
Design of an electromechanical bell. The traditional monotonous sound is heard at the moment when the hammer begins to strike the bowl. Thanks to the design of the bowl, the sound is booming and loud
Electronic products differ in their internal filling. Instead of interacting metal parts, the electronics and loudspeaker are located inside the box. The advantage is that you can adjust the sound volume, and for some models you can select a melody.
Electronic models, in turn, are divided into 2 groups:
Wired, in which all parts are connected by wires. Pros: clear design, easy installation, reliability. Disadvantages: depend on the supply of electricity, require drilling and chiselling of walls.
Wireless, transmitting signals via radio waves. They operate on batteries or accumulators, less often - from the mains. Pros: do not depend on the electrical connection, the button is protected from dust and moisture, easy installation. Cons: limited distance between blocks, regular replacement of batteries.
There are also video calls with a camera, but their design, installation method and operating principle need to be discussed separately. We will focus on current electronic models, which are present in large numbers on the domestic market.
The main advantages of wireless calling models
A wireless call has specific advantages over a wired model. To install it, you do not need to perform electrical installation work, which poses a danger to life and requires increased attention and certain skills. If the device malfunctions, there is no need to look for an open circuit. Any violation of insulation can cause serious consequences. The wireless type bell is a more secure device.
Wireless calling has not only advantages, but also disadvantages
Wireless models are characterized by a simple doorbell connection scheme, which is explained by the absence of wires. This facilitates easy and simple installation, which is carried out in a matter of minutes, without the use of additional accessories and tools. This also simplifies the process of dismantling the device in case of changing the installation location.
Wireless devices have more attractive designs. They are available in a wide range of colors and can be made from different materials. As numerous reviews prove, wireless doorbells to an apartment or house have more advanced functionality compared to wired options. The most popular models are equipped with functions that allow you to download all kinds of melodies from a flash card or transfer ringtones from a mobile phone.
In addition, it is possible to install a complex system. To do this, you need to purchase additional components and speakers that are tuned to the same frequency for receiving and reproducing the signal.
Weaknesses of wireless doorbells
Despite their undeniable advantages, wireless doorbell models are not without their drawbacks. The doorbell button is attached mainly using Velcro located on its reverse side. This option is short-lived. An ill-wisher can easily damage or tear off the device. If used for a long time, the bell may fall off on its own, which will be accompanied by damage to the case and electronic filling.
As a rule, wireless calls do not have reliable mounts
If the button is far from the main unit or there are concrete or metal barriers in the signal coverage area, the device will malfunction or stop functioning altogether.
Battery-powered wireless calls consume quite a lot of power. For normal operation of the device, frequent battery replacement is required. Electronic components in wireless doorbells fail faster. As a result, the signal will disappear and the sound will stop or be distorted.
Helpful advice! To reduce the negative consequences, it is necessary to purchase a wireless call from trusted manufacturers who provide a long warranty on the operation of the device.
Radio call on the control service of household electrical appliances
Recently, many cheap, but interesting and useful electronic devices have appeared on the markets. One of them is a radio doorbell. It is a set of a single transistor transmitter operating at a frequency of about MHz, modulated by a Hz quartz oscillator and a super-regenerative receiver. For example, lamps on the ceiling, or it will be a radio channel from one of the alarm sensors, or a lift on the gate in the garage. I even saw on the Internet the use of a radio call for a radio synchronizer for a photo flash. Here is the circuit diagram of the call, the receiver is a regular super-regenerator, I don’t recommend twisting or tuning anything - it will only get worse; in extreme cases, you can slightly shift the circuit frequency so as not to exclude the accidental influence of other similar devices operating nearby. You can further increase the noise immunity from other radio calls by replacing the clock quartz with others, for example 40 kHz.
This circuit can be used as a radio call button, a panic button or a control panel for one command. Advantages. Transmitter button.
Features of installing a wireless bell on the door to an apartment or house
The diagram for connecting a wireless bell to an apartment is very simple. This is especially true for the option that is inserted directly into the outlet. The button is mounted on the wall or on the door frame outside the room. Fastening can be done using self-tapping screws or dowels, depending on the nature of the base. The main unit is inserted into a socket, which should be located in the hallway as close as possible to the bell key.
Wireless doorbell installation diagram
A wireless call is an ideal option for a private home or country cottage. This is explained by the fact that its installation does not require laying cable products across the entire yard.
There are some limitations when choosing a wireless doorbell for outdoor use. The device must be designed for outdoor installation. Otherwise, the button will quickly fail under constant exposure to temperature changes, high humidity, ultraviolet rays and other factors.
In order for the wireless bell button to work properly in winter at low temperatures, it is important to choose the right type of batteries in the case of a stand-alone type of device. The best are lithium batteries, which are frost-resistant. A suitable option would be a lead-acid battery, which will function for a long period even under unfavorable environmental conditions.
Between the button and the bell, it is necessary to ensure the minimum permissible distance, at which there should be no obstacles in the form of metal or concrete structures that prevent the signal from being reproduced.
Installing a wireless doorbell on your door will not be difficult
Helpful advice! The technical data sheet of the device indicates the signal reception range, which is 80-100 m, however, you should choose models with a margin of 15-20%.
Types of calls
First you need to choose the type of doorbell you need, which can be mechanical, electromechanical or electronic. Mechanical devices have long been obsolete and can be used for decorative purposes: in the form of a bell mounted on a door and set in motion when it is opened.
Electromechanical
This type of bell has become an improved mechanical device. It is very simply designed and consists of a button placed outside, a resonator located in the apartment and an electrical wire connecting them.
Electrical diagram of the doorbell device
The diagram above shows the principle of operation of an electromechanical bell: the contacts of two buttons close an electrical circuit and a sound signal is given. There can be only one button. The second is usually needed when an electrical signal needs to be supplied from two different places, for example, from the gate and the front door of a private house. The resonator is a coil that, when voltage is applied to its winding, creates vibration in the sound reproduction device.
The electromechanical bell is used mainly due to its low price and simplicity of design. It has low reliability of mechanical parts and monotonous sound tonality. If the button closes the circuit to 220 V, the contacts quickly oxidize. Those who do not have special requirements for quality are quite satisfied with the electromechanical doorbell.
Electronic
This type is more advanced and the design can also be wired or wireless. Electronic calls on chips are more compact and have more functions, the number of which is growing over time. Wireless models are much more convenient, but their transmitter button is usually self-powered and must be located in an area of reliable signal transmission. There are models that do not even need to be connected to the network. The main unit is simply plugged into a 220 V outlet, and the button is powered by batteries
Here it is important to choose their relative location so that the signal from the transmitter reliably reaches the receiver
Wireless call with connection of the main unit to a 220 V socket
Modern calls have dozens of melodies, with the ability to select and program. This affects the increase in cost. Design is also important: shape, materials, color, texture, durability. An ordinary household electric bell with a round button has turned into a complex model with a security system and special functions. It has built-in CCTV cameras, as well as voice recorders with recording. If necessary or at the request of the owner, the video call can be combined with remote control devices for doors and gates, which is required for private homes.
Modern video call in the hallway of an apartment
Subtleties of connecting a wired bell
The main difference between wired and wireless models is the presence of cable products in the first version, which connects the button directly to the main bell unit. If the device is installed in an apartment, the button is attached near the entrance door to the wall or its frame, as in the wireless version. Additionally, it is connected to a cable that is inserted into the apartment through a hole in the door frame or wall, which facilitates hidden wiring.
The main unit of the wired doorbell can be installed anywhere in the apartment. Most often it is located in the hallway. Its connection is also carried out using cable products, which should be disguised in the wall, having first made a groove in it, which must be puttyed after laying the cable.
You can also use an open mounting option. To implement this, the cable is laid in a plastic box on the wall, specially designed for laying wires. The convenience of such a cable channel is that it is equipped with a removable part, thanks to which you can monitor the condition of the wires throughout the entire period of operation of the device.
The process of installing a wired call is more complex and time-consuming
A more complex option is the connection diagram for an electric bell in a private house, if its button should be located on the gate gate. In this case, wires are pulled and enclosed in a special corrugated casing-tube. Such a box provides reliable protection of cable products from moisture, ultraviolet rays, fire and other negative factors.
Important! When choosing a corrugated cable for laying cables, you should purchase a model that is designed for outdoor installation, since certain options are intended exclusively for indoor use.
When installing a bell at the stage of reconstruction of the local area, cable products can be laid underground in a corrugated pipe.
Types of calls
Electric doorbells are divided into:
- electromechanical;
- electronic.
In turn, electronic models are:
- wired;
- wireless;
- with autonomous power supply;
- with mains power supply.
The electromechanical sound detector is connected to the button via wires. This is a simple device that does not contain any electronic circuits, the operation of which only requires the presence of mains supply voltage. Electronic devices also come with a wired button connection.
The absence of wires connecting the sound emitter to the button is the privilege of electronic calls. The fact is that to transmit the signal about pressing a button on the external module, an electronic circuit is used - a transmitter. The second part, the receiver, is installed in the sound-emitting part. Such devices can be powered by a battery installed in both the external and internal units. There are models in which the battery is only in the button, and the internal unit has a plug that is inserted directly into a 220V socket.
Advantages and disadvantages
Mains-powered electromechanical wired calls require wiring and supply voltage. If there is no wiring, some effort will be required to install it. Another disadvantage is that the button directly switches 220V. If it is damaged, there is a risk of electric shock. Such calls have no restrictions on the time of use, are not afraid of low or high temperatures, and are insensitive to changing weather conditions.
Electronic wired calls have similar advantages, provided they are installed indoors. In addition, the electronic bell button is often connected to the circuit via low voltage circuits, and it is absolutely safe to use.
Electronic circuits, especially wireless external modules, are the most vulnerable part of the system. Unexpected battery drain will render the system inoperable. Most simple models do not have discharge indicators, so at some point the button will simply stop working. If a wireless button is installed in a country house, on the street, the influence of weather conditions, such as rain, snow, cold and heat, should be taken into account. Electronic components are sensitive to weather conditions, fluctuations in humidity, and in cold weather the battery life is greatly reduced. Of course, the absence of the need for wires greatly simplifies installation, while the bell itself can be placed in any convenient place. If necessary, it can be moved within the range of the button transmitter.
Choosing a model and features of installing a bell in an apartment
You can purchase any doorbell model for your apartment. The choice depends on the personal preferences of the owners. The bell button is installed at a distance of 15 cm from the door jamb. The height of the device should be 150-160 cm, but you can often find a bell at a height of 120-140 cm, which is convenient for children and the elderly.
You can purchase and connect any type of bell for your apartment door
The main unit of the device is located near the entrance to the hallway at a great distance from the floor. If you choose a wired doorbell for your apartment, the cable products are laid in a drilled hole in the door frame. You can also drill through the wall. It is necessary to insert the cable into the resulting passage and cover it on both sides. In this case, in order to minimize damage to the wall, a hole can be made opposite the installation location of the button or indoor unit.
Helpful advice! To replace the doorbell with a new device in the future (to minimize labor costs), you can insert a small diameter piece of metal or plastic pipe into the hole in the wall, into which two thin cables will fit.
A wired or wireless call button in an apartment can be attached using self-tapping screws or Velcro. The first option is more reliable. It is used to install the button on the door frame. When attaching an element to a wall, a less labor-intensive option is to use double-sided tape. The surface must first be degreased.
Related article:
Video doorbell to an apartment: types, features, selection rules
Is installation necessary? Existing types of video calls. Criteria for correct selection. Features of installation work.
Step-by-step instructions for installing a bell
Installation of the button and the internal unit is carried out according to the instructions, which are necessarily included with new products. We offer general instructions suitable for a standard wired model, consisting of 2 main working blocks - a button and the bell itself.
Step 1 - materials and tools
It is better to prepare the tools right away so as not to be distracted while working. If you plan to ditch the walls, a wall chaser, hammer drill or drill will come in handy. If necessary, you can borrow them from friends or rent them. Other devices and accessories are not so bulky.
It is better to carry out “dirty” work together with the renovation of the corridor or hallway, then the wires will be reliably “sewn” into the plaster and the appearance of the walls will not be damaged as a result
Set of tools and materials for installing a bell:
- construction knife;
- Screwdriver Set;
- indicator screwdriver;
- screws and screwdriver;
- insulating tape;
- terminals.
Connecting wires can be done not only with terminals - they are simply faster and more convenient. Some people still use soldering, then you will need a soldering iron.
We do not recommend using twists without soldering - this is an unreliable and dangerous way to connect wires.
For outdoor installation of cables, which does not require routing walls, protective cable channels are useful. This is an option for newly renovated hallways
If a cable is not included with the bell, you will need to purchase one. Before purchasing, look at the installation diagram and check which cable is required: 2- or 3-wire.
Step 2 - preparatory work
If you are installing a wireless model, no preparation is needed. It is required when it is necessary to lay a path for wires connecting circuit elements.
The most difficult thing is to drill a hole and gouge grooves in a concrete wall. To do this, make a marking, and then use a special power tool: wall chaser, hammer drill, impact drill
The hole is usually drilled near the front door. Sometimes it is carefully masked with platbands. The wires for the button are led out, approximately at a height of 150-160 cm from the floor, for the bell body - to the place of its installation. Usually this is an area under the ceiling above the door or slightly to the side of it.
If a connection to an electrical panel is required, consider the path to the grounding bus. If the bell has an adapter with a plug, choose the mounting location for the housing so that it looks natural on the wall.
The wires are laid in the grooves made and covered with plaster on top. To ensure that the walls and bell body look neat, we recommend finishing the walls only after the installation of fasteners is complete.
Step 3 – installing the bell body
First, we connect the conductors, and then install the housing on the bracket or holder. Sometimes it’s just 1-2 self-tapping screws for the “ears”.
Before connecting, remove the voltage from the involved circuit - turn off the circuit breaker in the electrical panel and warn others not to turn it on
According to the diagram, we bring the wires protruding from the wall into the housing through a special hole or unscrew the lid. We find the terminals, insert the wires stripped of insulation, and tighten them.
Often, expensive or imported products are equipped with self-clamping terminals, the wires of which are fixed with one click.
Close the lid and “fit” the housing onto screws, self-tapping screws or bolts. If a special bracket is pre-installed, simply fix it with a latch
There are products whose body needs to be screwed to the bar. Then first screw in the screws, and only then close the lid. As a result of correct installation, only the front decorative panel is visible, the fasteners are invisible.
How to choose and connect a doorbell in a private house
When choosing a doorbell for a private home, you need to take into account some features of outdoor models. Such devices must have an anti-corrosion coating. Some call buttons are additionally equipped with visors that protect from precipitation. An outdoor device equipped with a durable casing must have increased moisture and dust resistance and frost resistance.
Connection diagram for a doorbell in a private house
Helpful advice! For the street, it is better to purchase bells with a metal button, which is characterized by better protection of the mechanism from attacks by vandals, but has a higher cost.
When installing a bell in a private home, its button and the main unit are usually located at a considerable distance from each other. When connecting a wired doorbell, the degree of remoteness of the system elements does not in any way affect its performance. The only important thing here is to choose the cable of the required length. Wires can be laid through the air, fixing them on supports in the form of poles, trees or building walls. Despite the low labor intensity and quick installation, this option is unreliable, since attackers can damage or steal the cable.
The best solution is to lay wires underground. At the same time, for doorbell models that are powered by a 220 V network, the depth of the trench should be about 75-80 cm. A protective film is laid on top. If a doorbell is used, which requires 12 or 24 V power, such a cable should be laid at a depth of no more than 35-40 cm.
Helpful advice! When installing cables underground, you should mark the location of the wire to eliminate the possibility of damage if work is carried out on the site using a shovel.
For wired calls, it is advisable to lay the cable underground
When connecting a wireless bell to the gate, the button must be in the signal reception area relative to the main unit, which should be taken into account when choosing the location for installing the elements. When using such a call, if the area is surrounded by a solid metal fence, a problem may arise. In this case, when a button is placed on it, the sheet of metal will shield the signal from the receiver, as a result of which the system will not work properly. The issue can be resolved by making a hole in the fence to attach the button.
How to connect a wired doorbell: preparatory stage
Before connecting a wired call, you need to prepare tools and materials for work. You will definitely need an indicator screwdriver to determine the zero and phase of the electrical network.
There are various modifications of the instrument: the devices differ in design and display options. Despite this, all indicator screwdrivers have the same operating principle. They show the presence of voltage in the network and the relative placement of phase and zero. To do this, apply the metal probe of a screwdriver to the protected end of the electrical cable. If the light on the indicator lights up, this indicates that a phase has been detected. The indication does not work on the zero contact.
To implement a diagram for connecting a 220 V doorbell to an apartment, you need to take a regular screwdriver, pliers with insulated handles, a terminal block or clamping terminals for connecting wires, a stripper for stripping conductors, insulating tape, and plastic clamps.
During the installation process, you will need an indicator screwdriver
An important step is choosing the optimal cable for wiring. Its cross-section should not be more than 1.5 mm². It is not advisable to use a larger diameter cable, since the power consumption of the device is small. The wire must be made of the same material as cable products for electrical wiring in the apartment. Copper wires are most often used, since aluminum cable has a number of disadvantages.
How to install a doorbell: getting started
Before connecting a 220 V bell, you must turn off the power to the house or apartment. To do this, turn off the machine on the distribution panel. If there is an old bell, it is completely dismantled, which consists of removing not only the button and the main unit, but also the cable products.
After the necessary tools and materials for the work have been prepared, at the first stage of implementing the 220 V bell connection scheme, the speaker is installed via a button. The device is usually equipped with holes for mounting and an input socket for electrical wiring. First of all, the element is placed on the wall to make holes for the conductors. The evenness of fixation is checked with a level.
The ends of the prepared sections of connecting wire are stripped. According to the diagram for connecting a bell to an apartment, one end of the cable is passed into the prepared hole and pulled to the location of the button. Both elements must meet in the junction box.
Before installing the bell, you must turn off the electricity at the distribution panel.
It is convenient to place the button at a height of no more than 1.5 m. To do this, make a hole in the wall or door frame. The cable from the bell is threaded into it so that it extends 10-15 cm from the outside. The end of the wire is stripped with a stripper, and no more than 2 cm is exposed.
How to connect a bell in an apartment or house: installation of cable products
When connecting a wired bell to an apartment, it is most convenient to work with color-coded wires. The blue cable points to zero. The yellow or green color of the wire determines the protective ground loop, and red, black, white or brown indicates the phase. If there is no color marking, the location of zero and phase is determined using an indicator screwdriver.
How to connect a bell in an apartment? The diagram will help you understand the details of installing the device. The neutral wire must be connected directly through the terminal to the cable that goes to the bell. The phase wire is connected through a terminal to a cable laid to the button. The second conductor of this cable product is also connected via a terminal with the second wire going to the bell. Both cables connected to the button must be stripped and clamped into its terminals. After this, the button is closed with a cover, which is secured with a screw.
The cable products that come out of the junction box and go towards the bell are clamped into its terminals or connected to the wires coming out of its body. Switching occurs taking into account the location of zero and phase.
Wired doorbell connection diagram
Important! For budget models, the position of zero and phases at the output is not important, however, for doorbells with advanced functionality, the placement of conductors L and N is specifically indicated on the terminals.
If you use a doorbell in a metal case or install a button outdoors, a protective grounding wire must be provided. When connecting cable products, you can not only use terminals, but also twist them. This is permitted if special contact caps are used.
How to install a bell in an apartment or house using a transformer and without it
If a bell is connected to an apartment via a transformer, it is necessary to make technological holes in the panel panel to fix it. The device is securely fastened with screws. A wire that comes from the bell is connected to it outside. It has two ends that can be fixed regardless of where the zero and phase are located, since after the transformer both contacts are equivalent to the phase.
The wires are securely fixed in the terminals. After the transformer, the supply voltage is no more than 20 V, which makes it safe. Cable products should be secured to the brush. If the wires are too short, additional pieces of cable are added to them using blocks or clamps. The ground wire is connected first. Next, the neutral and then the phase cable are connected.
The doorbell can be connected via a transformer or without it
How to connect 2 doorbell wires without using a transformer? The process is carried out on a principle similar to installing the device. However, in this case, one cable from the button goes directly into the machine and is connected to a phase. The second wire is routed to the main bell unit. Another cable comes out from here, which is connected to zero to the machine.
Non-standard doorbell connection diagrams
In practice, there are cases when it is necessary to install two buttons on one call or two main units. The implementation of the first option is carried out by parallel connection of call buttons in apartments. The installation diagram clearly shows this. The phase is supplied to the first button, from where the cable is routed to the second button. From it, from the second free contact, a conductor goes to the same input of the first key, from where it goes to the main bell block.
Important! The cable that will connect the two buttons should be the same color as the wire that comes out of the junction box.
There are situations when it is necessary to connect two doorbells. This option is often implemented for a private home. For example, calls can be on different floors, in different parts of the house: one inside the cottage, and the other outside. The simplest solution in this case is to purchase a wireless bell, the connection diagram of which was described above. The device is equipped with two elements that are tuned to the same frequency.
Wiring diagram for a doorbell with two buttons
When using wired options, parallel connection of the main units is carried out according to a similar scheme that was discussed earlier. The phase wire of the button is connected to the first block, from where it is routed to the second. A neutral cable from the junction box is connected to the free conductors of both calls.
Wired signaling installation
If you chose a device from 220 volts, it will be more difficult to build. You start with the door button. A phase is always supplied to it, and not a “zero”; they can be distinguished by a special inexpensive sensor in the form of a screwdriver. There are two wires - phase input and output, the first from the door button to the alarm device in the apartment, and extend the “zero” from the alarm unit there.
Then two wires are laid - phase input and output. The first is from the button to the signal unit installed in the apartment. The second is from the button to the junction box. The neutral wire from the signal unit is also connected there. Carry out work when the power supply is disconnected. After finishing the installation, go through the diagram again so that when you turn on the light, the plug does not get knocked out.
How to repair a doorbell yourself
The main sign of a faulty doorbell is the absence of a sound signal when you press the device button. It is also necessary to check the functionality of the device when the melody playback volume is reduced or when the signal sounds intermittently, with some pause.
The cause of malfunction of the device may be natural wear and tear of the device or incorrect installation of the doorbell resulting from an incorrect connection to the electrical network. The noise or button unit may fail, which must be checked for functionality. First of all, you need to figure out how to turn off the bell in the apartment. To do this, a number of manipulations are performed.
Before turning off the doorbell in the apartment, you should turn off the power to safely perform work. Next, you need to make sure there is no voltage. To check the serviceability of the main unit, you need to remove the top cover from it, squeeze the wires from the screw terminals and check the presence of current in them using a multimeter. If the device displays an electrical signal, the speaker should be replaced.
You can repair the doorbell yourself
To check the functionality of the button, the wires are detached from the pressure element. They should be connected to each other. If there is a sound, the button is faulty.
The reason for the malfunction of the button or the main unit may be hidden in the loose contact of the contacts. To do this, the device is disassembled and the reliability of the wire connections is checked. If necessary, they should be cleaned.
Before installing a wireless or wired bell in your apartment, you need to choose the right device, taking into account the location of its installation. You can purchase any model for an apartment. Outdoor devices are subject to special requirements, as discussed above. Connecting a doorbell in an apartment or house is a fairly simple process that requires basic knowledge and skills in electrical engineering. By following the above recommendations, any type of device can be installed in a short period.
Connecting to the network and checking functionality
After completing the installation work, it is necessary to connect to the power supply network. First, at the input panel, the power supply to the apartment is turned off using automatic switches. Then connect the neutral wire and phase to the corresponding supply wires in the junction box. A connection error may cause the main unit to break down, so you need to use the phase indicator before connecting the doorbell. If everything is done correctly, then after turning on the power the circuit should work. If the bell does not work, then you need to ring the wiring with a tester and fix the problem.
