How to wire the inside and outside units of the air conditioner? How to wire the outdoor unit of the

Midea air conditioner outdoor unit has wires, power supplies, live wires, neutral wires, fan wires or ground wires, if one of them has a ground wire, it is easy to distinguish the ground wire. Then it's easy to find. There should be thick and fine roots.

Connect the purple and red thick ones to blue and black, and then connect them casually to activate the cooling mode. After starting, the compressor must be running to see if the fan is running. There is only one case.

The rotary fan and breather valve of this compressor are not working, and the tubing of this compressor is not in the right position. Swap the position of the tester, and the fan does not work without a valve. The way a straight-through valve works is pipe heating.

It's easy to see that there is a click. Under the line position of this and, the tester is normal, and there is a direct and.

The wiring of the indoor unit and the outdoor unit of the air conditioner can be guaranteed to be no problem as long as the machinery is consistent. That is to say, the internal machine is wired together, and the external machine should also be wired.

If you don't understand this situation, it's best not to do this job, and find a professional person to connect this line, because after you connect this line in reverse, the compressor will reverse and cause damage, so it's best not to move.

How to wire the internal and external units of the air conditioner, if the internal unit of the air conditioner and the external line are called wiring, there is a special kind of wiring personnel. Generally speaking, that line is more confidential, and we ordinary people can't do it.

The line of the air conditioner is mainly composed of 4 wires and a signal line, and the signal line has a jack, as long as it is plugged in. The 4 wires are docked according to the color, and they are generally marked on the binding post, as long as they correspond.

An air conditioner is an air conditioner. It refers to the equipment that uses artificial means to regulate and control the temperature, humidity, flow rate and other parameters of the ambient air in the building or structure.

Generally, it includes cold source heat source equipment, cold and hot medium transmission and distribution system, terminal device and other major parts and other auxiliary equipment. It mainly includes refrigeration hosts, pumps, fans and piping systems. The terminal device is responsible for using the cold and heat from the transmission and distribution to specifically treat the air state and make the air parameters of the target environment meet certain requirements.

Air conditioning is an indispensable part of modern life, air conditioning provides people with coolness, but at the same time, air conditioning is always on is also easy to cause diseases, such as "air conditioning disease", etc., need to be used with caution.

How it works. Air conditioners are divided into single cooling air conditioners and cold and warm air conditioners, the working principle is the same, and most of the refrigerants used in air conditioners before were freon. The characteristic of Freon is that when it changes from a gaseous state to a liquid state, a large amount of heat is released.

When the liquid state changes from a gaseous state, it absorbs a large amount of heat. (i.e., first absorbing heat and gasification and then liquefiing and heat release) air conditioners are designed according to this principle.

The compressor compresses the gaseous refrigerant into a gaseous refrigerant with high temperature and high pressure, and then sends it to the condenser (outdoor unit) to dissipate heat and becomes a liquid refrigerant at room temperature and high pressure, so the outdoor unit blows hot air.

Then to the capillary, into the evaporator (indoor unit), because the refrigerant from the capillary to the evaporator after the space suddenly increases, the pressure decreases, the liquid refrigerant will vaporize, become a gaseous low-temperature refrigerant, thereby absorbing a lot of heat, the evaporator will become cold, the fan of the indoor unit will blow the indoor air from the evaporator, so the indoor unit blows out of the cold air.

When the water vapor in the air meets the cold evaporator, it will condense into water droplets and flow out down the water pipe, which is why the air conditioner will produce water.

There is a component called the four-way valve during heating, so that the flow direction of the refrigerant in the condenser and evaporator is opposite to that of refrigeration, so when heating, the outdoor air blows cold air, and the indoor unit blows hot air.

In fact, it is the principle of expelling heat during liquefaction (changing from a gas to a liquid state) and absorbing heat during vaporization (from a liquid to a gas) that I learned in junior high school physics.

How the eco-friendly air conditioner works:

The water in the water tank is continuously pumped out with a circulating water pump, and evenly sprayed on the evaporation filter layer through the water distribution system, and the outdoor hot air enters the evaporative cooling medium, and the heat exchange is fully carried out with the water in the evaporative cooling medium CLEDEK (honeycomb filter layer of special material, so that the cooling effect is more ideal, Sweden's high-tech patented product).

The cool and clean air cooled by water evaporation and heat absorption is pressurized into the room by a low-noise fan, so that the hot air in the room is discharged to the outside, so as to achieve the purpose of indoor cooling.

There may be two kinds of wiring: 1. The external machine has a control line, that is, there is a signal line, generally speaking, there are 4 wires and a signal line, and the signal line has a socket, which can be plugged in directly; If there are 4 wires, first look at the color, and the general mark on the binding post, as long as it corresponds. If there is no color, according to the regulations, the red live wire, the black zero line, and the yellow-green ground.

The external unit has two sets of 220V power supply, which control the fan and compressor respectively. 2. If the external unit does not have a control line, this situation is relatively rare, and it is generally the previous unit.

Answer how to connect the air conditioning external unit line 3 power supply load one, compressor, compressor is generally three wires, there are several lines, today we use three wires to explain, a wire directly connected to the wiring port L line, the remaining two one directly connected to the large capacitor 30uf (2 chip interface) and the other one connected to the large capacitor (four chip interface) so that it is good Second, the fan, the fan is generally three wires, there are several lines, today we use three wires to explain, one we directly connect the wiring port, The remaining two, one is connected to any interface of the small capacitor and the other is connected to the small capacitor and the other (any interface of the two-chip microcomputer) so that we can "Note, a wire will be placed on the interface of the two-chip microcomputer to connect to any interface of the four-chip microcomputer with large capacitance" Three, four-way valve, four-way valve has only two wires, regardless of left and right and positive and negative, one is directly connected to the wiring port, and the other is connected to the 30uf large capacitance (any interface of the four-chip microcomputer interface) so that it is connected.

How to connect the air conditioner outside the line 3 power supply load one, compressor, compressor is generally three wires, there are several lines, today we use three wires to explain, a wire how to directly connect the wiring port L line, the remaining two one directly connected to the large capacitor 30uf (2 chip machine interface) and the other one to connect the large capacitor (four chip machine interface) so that it is good Second, the fan, the fan is generally three wires, there are several lines, today we use three wires to explain, one we directly connect the wiring port, the remaining two, one is connected to any interface of the small capacitor two-chip microcomputer) the other is connected to the other small capacitor and the other one (any interface of the two-chip microcomputer) so that we can "Note, a wire will be placed on the two-chip microcomputer interface to connect to any interface of the four-chip microcomputer with large capacitance" Three, four-way valve, four-way valve has only two wires, regardless of left and right and positive and negative, one is directly connected to the wiring port, and the other is connected to the 30uf large capacitance (any interface of the four-chip microcomputer interface) so that it is connected.

It's best to read the manual, as different brands may not be exactly the same.

Air conditioning and heating can be divided into: ground wire, neutral line, compressor control live line, and heating control line.

Single cooling air conditioner can be divided into: ground wire, neutral line, compressor control live line.

But different brands are not absolutely in the same order.

There are also some 5-wire models, which are mostly high-power models, and the power supply first goes to the outdoor unit, and then returns to the indoor unit.

The answer added: I can't go into more detail, different machines have different statements, and the indoor unit and the outdoor unit are written on it, 1 to 2 and so on.

There are many cases that have circuit diagrams, study them slowly, and if you study them a lot, you will become a master.

<> ordinary household wall-mounted air conditioner and household cabinet air conditioner use the same one, the power socket is first introduced into the indoor unit, and then from the indoor unit to the outdoor unit.

**The air conditioner has a separate power supply for the internal and external units, and there are also power supplies to the outdoor unit, and then introduces it from the outdoor unit to the indoor unit.

A very small number of high-power three-camera can directly take power from the outdoor unit, and the indoor unit draws single-phase electricity from the outdoor unit or indoor socket, and then outputs the control signal (note that the signal is spoken here) to control the outdoor unit, which can avoid the trouble of connecting the three-phase power supply to the room.

The L, N, and G superscripts on electrical appliances represent the live wire, neutral wire, and ground wire, respectively. Where there are only two wirings, it may be that there is no ground wire. The two wires in the lighting circuit, one is called the live wire, the English abbreviation L (live), generally red or yellow or green, the other is called the neutral wire, the English abbreviation N (neutral), generally blue, in addition to the ground wire, generally yellow-green or black.

First connect the outer machine connection line to the outer machine line row, pay attention to the thickness of the line press wiring and the zero line with a thick wire (the line line outside the machine can see the wiring diagram on the terminal cover plate), and then go indoors, use the multimeter resistance gear to connect the wire, the result of the amount is best to use the note, and then determine the wiring according to the measured resistance, first look at which two resistance values are the smallest ohm of the two, one of which is the press line, the other is the zero line. The other three wires are respectively and any one of the two, the one that is not connected is the grounding wire, the one that is through, and the resistance value of 1k or more is the four-way valve line, and the European is the fan line.

Finally, it is necessary to confirm the zero line and the press line, any of the remaining two lines and the amount of the fan line, the line with a small resistance value is the zero line, and the other is the press line. In this way, the lines are clear.

This method is suitable for fixed-speed hang-up, cabinet machine, can also confirm the external machine defrost sensor, maintenance practice, often there are external machines are not very convenient to reach, through the amount of these lines can first know whether the connection channel of the internal and external machine is unblocked.

The power cord connection method of the air conditioner outdoor unit: L, N, and G on the electrical appliance are marked with live wire, neutral wire, and grounding wire respectively. Where there are only two wirings, it may be that there is no ground wire.

Another: two wires in the lighting circuit, one is called the live wire, abbreviated as L (live) in English, generally red or yellow or green; the other is called the zero line, which is abbreviated as n (neutral) in English, and is generally blue; In addition, there is a ground wire, which is generally yellow-green or black.