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How to start the refrigerator motor without a relay

Manual how to connect a refrigerator and its individual parts

The refrigerator, like any household appliances, can break or just become obsolete over time. As practice shows, the second option is characterized by devices that are in operation for twenty or more years. But you should not be upset. This is an occasion to purchase new modern equipment. It is distinguished by its functional abilities for the better. Therefore, such a replacement will only be on your hands.

Before throwing a refrigerator that has become unusable, assess the performance of its individual parts. Even if the freon leaks occurred, and the repair is impossible to perform, then some of its units still have value. For example, a compressor. As practice shows, it can be used not only in the refrigerator, but also to solve many other problems: to pump up the wheels, make a home.made device for painting.

When and why do you need such a connection

The compressor of refrigeration equipment is a piston machine with a drive from a collector electric engine of AC. The drive and injection mechanism are installed on the frame inside the metal closed case. The casing is attached to the refrigerator case with bolts through supports with rubber damping inserts. A special launch relay was installed on the case, in which the contacts of the windings are displayed. The relay works together with the thermostat, ensuring the maintenance of the given temperature in the freezer of the refrigerator.

The connection is directly used to verify the state of the windings of the electric motor excluding the state of the relay, thermostat and the connecting wiring. Before starting testing, the performance of the windings should be checked, as well as the lack of breakdown of electric circuits on the compressor housing.

The principle of operation of the launch relay

Despite a large number of patented products from various manufacturers, refrigerators and the principles of launch relay are almost the same. Having figured out in principle, their actions can independently find and eliminate the malfunction.

Device diagram and compressor connection

The electrical circuit of the relay has two entrances from the power source and three exits to the compressor. One entrance (conditionally. zero) passes directly.

Another entrance (conditionally. phase) inside the device is split into two:

If the relay does not have a seat, then when connecting to the compressor, you must not be mistaken with the procedure for connecting contacts. The methods of determining the types of winding by measuring resistance are not true in the general case, since some engines in the trigger and working winding are the same.

Therefore, it is necessary to find the documentation or disassemble the compressor of the refrigerator to understand the location of the passage contacts.

This can also be done if there are symbolic identifiers near the outputs:

The relay differs in the method of fastening on the frame refrigerators or on the compressor. They also have their current characteristics, so when replacing it is necessary to choose a fully identical device, and better. the same model.

Closing contacts by means of induction coil

Electromagnetic starting relay works on the principle of contact of contact for passing current through the starting winding. The main active element of the device is a solenoid coil, consistently included in the chain with the main engine winding.

start, refrigerator, motor, relay

At the time of starting the compressor, with a static rotor, a large starting current passes through the solenoid. As a result of this, a magnetic field is created, which moves the core (anchor) with a conductive bar installed on it, closing contact of the launch winding. The rotor accelerates begins.

With an increase in the rotor speed, the value of the current passing through the coil decreases, as a result of which the magnetic field voltage decreases. Under the influence of a compensating spring or gravity, the core returns to the original place and the contact opens up.

The compressor engine continues to operate in the mode of maintaining rotation rotation, passing the current through the working winding. The next time the relay will work only after the rotor stops.

Current supply regulation by the posistor

Relays produced for modern refrigerators often use the posistor. a variety of thermal resistor. For this device, there is a temperature range, below which it passes the current with a slight resistance, and above. the resistance increases sharply and the circuit is opened.

In the launch relay, the posistor is integrated into the chain leading to the starting winding. At room temperature, the resistance of this element is small, therefore, at the beginning of the compressor operation, the current passes without hindrance.

Due to the presence of resistance, the posistor gradually heats up and, upon reaching a certain temperature, the circuit is opened. It cools only after stopping the current supply to the compressor and again works on the pass when the engine is re.turned on.

Description of the starting relay device

Without relay, the old refrigerator is launched with doubts about its automation. The start.up relay usually combines two important functions in one device: ensuring the launch of the compressor electric motor and its safety during overload.

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The engine has two stator windings: working and launch. The power supply is supplied constantly, and the starting is transferred by a short.term pulse at the moment when you need to turn on the motor. The start signal is supplied from the circuit of the temperature control of the freezer chamber. It is possible to launch a compressor from a refrigerator without a launch relay, only interfering in the scheme of its work.

The location of the relay

Most often, the part in a closed box is attached directly to the sealed body of the compressor tank next to its contacts. To access it in some models, you will need to dismantle a tray that collects melted water from the freezer.

Checking the food relay in the refrigerator for serviceability

To test the operation of the relay, an electrical measuring device will be required. When the engine winding is included in the network, a current of 0.7-1.2 A is connected to the electric motor, as well as a characteristic click of the contact of the starting circuit circuit. If the engine is jammed and does not rotate, the current through the working winding grows to 4-5 a. After a few seconds, the protective circuit of the relay overheats and turns off the power. This cycle is repeated repeatedly.

How can you start without a relay and why it is needed. Instructions

In order to run chilled engines, we will need an ordinary two.core wire capable of conducting 220 volts, with a fork for a household outlet at one end and two contacts on the other.

One contact should be inserted to a common point, the second. to the point of the working winding. We need a device capable of closing contacts, most often an ordinary screwdriver is used (a screwdriver will work instead of a starting relay). We connect the contacts of the working and starting winding with a screwdriver, after which the structure should be included in the outlet. After that, the device begins to work. If in such cases it does not start, then either the motor or 220 cable in.

It happens that the windings are charred, or the compressor simply turns out to be jammed. And then the situation is somewhat different.

Very often, such refrigerators are brought to masters and services that are included for only 5-10 seconds (occasionally it works up to 30 seconds-minutes). In such cases, the diagnostic procedure is as follows: the engine is connected directly. You must definitely look at the state of the wiring, check if there are heating. In the case of excessive heating, the chain should immediately be opened.

start, refrigerator, motor, relay

The device is connected directly, after which you should carefully observe how the refrigerator freezes (both in the freezer and in the refrigerator). From this we can conclude-a simple replacement of the motor is necessary, or you need to do something else. Most often, compressors do not burn just like that, they burn because of something: due to overstrain (the most positive outcome, because you just need to replace the motor and refueling), because of the clogged capillary (not only replacement is required, but also cleaning. ; diagnose simply. the clogged “capillary” has a place to be with an overheated capacitor).

If the refrigerator froze well, then you should just replace the engine; If within an hour the cold has never appeared anywhere (or the freezer, for example, is frozen, and the cold is not observed in the refrigerator chamber), then the question is either in a leak or in a clogged capillary system. Also, motors can burn from a faulty thermostat (the thermostat does not turn it off during the refrigerator and the device works for a very long time). It happens quite often. However, be that as it may, for a full diagnosis, it is advisable to connect the motor directly according to the instructions that we placed above.

The compressor with an electric drive installed in refrigerated machines provides a refrigerant circulation and maintain the required temperature in freezers. If the performance decreases or the problems with the launch of the motor, you should check the condition of the circuits, and then start the refrigerator compressor without a relay, which will make sure that the unit is serviceable.

Description of the starting relay device

Without relay, the old refrigerator is launched with doubts about its automation. The start.up relay usually combines two important functions in one device: ensuring the launch of the compressor electric motor and its safety during overload.

The engine has two stator windings: working and launch. The power supply is supplied constantly, and the starting is transferred by a short.term pulse at the moment when you need to turn on the motor. The start signal is supplied from the circuit of the temperature control of the freezer chamber. It is possible to launch a compressor from a refrigerator without a launch relay, only interfering in the scheme of its work.

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The location of the relay

Most often, the part in a closed box is attached directly to the sealed body of the compressor tank next to its contacts. To access it in some models, you will need to dismantle a tray that collects melted water from the freezer.

Refrigerator relay: device features

Many refrigerator models provide for the presence of a relay. This is not surprising. This detail plays an important role in the compressor process. She is responsible for ensuring that the part does not overheat, does not break. Wonderful relay will provide long.term and high.quality service.

To connect the refrigerator relay, it is important to determine the brand of the device. After that take a similar element. In this case, the recommendations that are in the device diagram will be required. According to them, the relay is carried out. over, the process is similar to the one that is carried out in the refrigerator.

Device diagram and compressor connection

The electrical circuit of the relay has two entrances from the power source and three exits to the compressor. One entrance (conditionally. zero) passes directly.

Another entrance (conditionally. phase) inside the device is split into two:

start, refrigerator, motor, relay

If the relay does not have a seat, then when connecting to the compressor, you must not be mistaken with the procedure for connecting contacts. The methods of determining the types of winding by measuring resistance are not true in the general case, since some engines in the trigger and working winding are the same.

Therefore, it is necessary to find the documentation or disassemble the compressor of the refrigerator to understand the location of the passage contacts.

This can also be done if there are symbolic identifiers near the outputs:

The relay differs in the method of fastening on the frame refrigerators or on the compressor. They also have their current characteristics, so when replacing it is necessary to choose a fully identical device, and better. the same model.

Closing contacts by means of induction coil

Electromagnetic starting relay works on the principle of contact of contact for passing current through the starting winding. The main active element of the device is a solenoid coil, consistently included in the chain with the main engine winding.

At the time of starting the compressor, with a static rotor, a large starting current passes through the solenoid. As a result of this, a magnetic field is created, which moves the core (anchor) with a conductive bar installed on it, closing contact of the launch winding. The rotor accelerates begins.

With an increase in the rotor speed, the value of the current passing through the coil decreases, as a result of which the magnetic field voltage decreases. Under the influence of a compensating spring or gravity, the core returns to the original place and the contact opens up.

The compressor engine continues to operate in the mode of maintaining rotation rotation, passing the current through the working winding. The next time the relay will work only after the rotor stops.

How to start. direct compressor part.2

Checking the food relay in the refrigerator for serviceability

To test the operation of the relay, an electrical measuring device will be required. When the engine winding is included in the network, a current of 0.7-1.2 A is connected to the electric motor, as well as a characteristic click of the contact of the starting circuit circuit. If the engine is jammed and does not rotate, the current through the working winding grows to 4-5 a. After a few seconds, the protective circuit of the relay overheats and turns off the power. This cycle is repeated repeatedly.

How to wedge the refrigerator compressor

The first way to blame the compressor of the refrigerator

Pi eliminating the compressor jamming using this device, the voltage is supplied to the electric motor winding for 3-5 seconds. Then repeat it after 20-30 seconds.

The crumbling effect occurs as a result of the fact that when the current is supplied through the diodes to the shaft of the electric motor, an alternate torque occurs. The engine rotor begins to vibrate with a frequency of 50Hz, vibration through the mechanics is transmitted to the chilled elements of the compressor and releases them.

It is also possible to use one diode instead of two, the wedging effect will be approximately the same. It is included in the starting winding circuit, the working winding is directly connected to the network, and not through the diode.

Glining the compressors using this device is much more effective than just supply to a higher voltage electric motor.

The action of this device when shaking the compressors can be strengthened if it is connected through an increase in a transformer 1: 1.2 1.5. The power of the transformer is not lower than 50W.

Connecting a crumbling device can be carried out using the connector from the protective device of the compressors of old refrigerators (which are still without RCT). Either with small insulated clamps. The diodes used in the wedging device must have an allowable reverse voltage of at least 400V and the permissible direct current 10A. Such characteristics are possessed, for example, D246, D247, D232A, KD203A (B, D).

The second way to split the refrigerator compressor

Carefully! Electric voltage 220 volts. It is dangerous for your life. All connection operations must be carried out with the voltage disconnected.

The operation is carried out when the motor-compressor shutters, which jams due to a low voltage of the supply power supply. If the motor-compressor is faulty, this measure will not be effective.

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The engine is connected to the network through two diodes. You can use any diodes designed for a voltage of at least 400 volts and current of at least 10 amperes. The following diodes are suitable: D-232A, D-233, D-246, D-247, KD-203A, KD-206A.

The diodes are connected to the motor windings according to the following scheme:

One wire of the network cord is connected to the general output of the motor-compressor windings. On compressors of brands SK and KV (production engines “Minsk-Atlant” and “Krasnoyarsk factory of refrigerators”) the general conclusion is located above the rest.

An additional wire is connected to the wire of the network cord. Next, diodes are connected to the wires, and the entire assembly is connected to the motor-compressor, as shown in the diagram below.

The third way to remove the wedge of the refrigerator compressor

In order to run chilled engines, we will need an ordinary two.core wire capable of conducting 220 volts, with a fork for a household outlet at one end and two contacts on the other.

One contact should be inserted to a common point, the second. to the point of the working winding. We need a device capable of closing contacts, most often an ordinary screwdriver is used (a screwdriver will work instead of a starting relay). We connect the contacts of the working and starting winding with a screwdriver, after which the structure should be included in the outlet. After that, the device begins to work. If in such cases it does not start, then either the motor or 220 cable in.

It happens that the windings are charred, or the compressor simply turns out to be jammed. And then the situation is somewhat different.

Very often, such refrigerators are brought to masters and services that are included for only 5-10 seconds (occasionally it works up to 30 seconds-minutes). In such cases, the diagnostic procedure is as follows: the engine is connected directly. You must definitely look at the state of the wiring, check if there are heating. In the case of excessive heating, the chain should immediately be opened.

The device is connected directly, after which you should carefully observe how the refrigerator freezes (both in the freezer and in the refrigerator). From this we can conclude-a simple replacement of the motor is necessary, or you need to do something else. Most often, compressors do not burn just like that, they burn because of something: due to overstrain (the most positive outcome, because you just need to replace the motor and refueling), because of the clogged capillary (not only replacement is required, but also cleaning. ; diagnose simply. the clogged “capillary” has a place to be with an overheated capacitor).

If the refrigerator froze well, then you should just replace the engine; If within an hour the cold has never appeared anywhere (or the freezer, for example, is frozen, and the cold is not observed in the refrigerator chamber), then the question is either in a leak or in a clogged capillary system. Also, motors can burn from a faulty thermostat (the thermostat does not turn it off during the refrigerator and the device works for a very long time). It happens quite often. However, be that as it may, for a full diagnosis, it is advisable to connect the motor directly according to the instructions that we placed above.

HOW TO START COMPRESSOR REFRIGERATOR WITHOUT RELAY (TAGALOG TUTORIAL)

How to connect a refrigerator compressor relay?

To connect the refrigerator compressor relay, you need to perform a few simple actions. In this case, the glass gunner hose is used. Find it is not difficult. It is in almost any store that sells spare parts for cars.

As for the operation of the device, it is important to monitor the level of oil. This will avoid overheating. In this case, the duration of the device should not exceed forty.five minutes. Otherwise, it can quickly fail.

This device is electrical. Therefore, when using it, it is necessary to observe safety precautions. Before proceeding with operation, the quality of the insulation of the wires is necessarily checked. In this case, only special material is used. When using the device, the arm must be dry.

It is also worth noting that it is not worth hoping for a long service of such a device. Since no one can provide guarantees for this. This must be taken into account, so sometimes it is better to purchase a new compressor than to use a homemade.

Conclusions and useful videos

The simple design of the starting relay allows you to independently find malfunctions and easily eliminate them. This does not need deep knowledge in an electrician or a special tool.

However, it is necessary to observe punctuality, since the functionality of expensive equipment depends on the quality of the work carried out.

If you want to talk about how the starting relay was selected to restore the performance of the refrigeration unit? Make useful information of articles that you should share with visitors to the site? Please write Комментарии и мнения владельцев in the block below, place photos, ask questions.

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