What is the difference between air conditioner 1 horse and large 1 horse Three reasons why the air conditioner does not heat

What is the difference between air conditioner 1 horse and large 1 horse Three reasons why the air conditioner does not heat

Although the air conditioner is said to be one of the indispensable electrical appliances in every household, many people do not understand the air conditioner very well. For example, if there is a problem with the air conditioner, they will immediately go to the after-sales maintenance master for repair, although this is a This is the right choice, but it is better for everyone to understand some common sense of electrical appliances, so today I want to introduce to you what is the difference between 1 HP and 1 HP, and the three reasons why the air conditioner does not heat? Friends who want to know Let's take a look together.

　　What is the difference between 1 horse and 1 horse in air conditioner

　　 One. What is the difference between an air conditioner and a large one?

Usually in the minds of consumers, 1 horse and 2 horses should be a fixed standard in the air conditioner industry. In fact, they are not. In our air conditioner market, 1 horse and 2 horses are actually a relatively broad concept. You know the usage of 1 horse and big 1 horse in the industry. If you don't understand it, it is easy to buy the wrong one.

　　"Horse" is equivalent to the international unit horsepower, which is the efficiency per unit of power. The concept of one air-conditioning standard refers to the generation of cooling capacity equivalent to 2500 watts per unit time. This is what the industry usually calls the "two-five".

Let’s take a 2-hp air conditioner as an example. The cooling capacity of a standard 2-hp air conditioner should be 5000 watts, which is “50", but the concept of 2-hp air conditioners on the market usually includes “43", “46", and “48", which means small 2 Horse, "50" refers to standard 2 horses and 51 to "58" big 2 horses. When marketers introduce air conditioners to consumers, the 2 horses mentioned actually include at least several different grades, and their prices are of course different. For example, for the air conditioner of the same brand, the "43" 2-hp machine may sell for 2,000 yuan, while the "51" 2-hp machine may sell for 4,000 yuan. Therefore, when buying an air conditioner, you must not determine its price based on the number of horses of the air conditioner alone. It must be subdivided.

What is the difference between air conditioner 1 horse and large 1 horse? Three reasons why the air conditioner does not heat up?

　　 2. Three reasons why the air conditioner does not heat up

　　 (1) Refrigeration cycle system, control system failure

　　 1. The refrigerant is insufficient. A simple self-test can be performed to determine whether fluorine is leaking.

　　2, the four-way valve string gas. The heat pump type air conditioner uses a four-way valve to switch between cooling and heating states. Part of the refrigerant that should have participated in the heat exchange is returned to the return pipe from the outlet pipe of the compressor directly at the four-way valve, which leads to the decrease of the refrigerant participating in the heat exchange and the decrease of heat exchange efficiency, which causes insufficient heating capacity.

　　 3. One-way valve (also known as check valve) is leaking. The pressure difference between the high and low pressure of the refrigeration system drops, the temperature of the outdoor heat exchanger rises, and the heat obtained from the outside is reduced, resulting in insufficient heating capacity. After detecting the operating pressure of the system, you will find that the low pressure side pressure rises, and the high and low pressure differentials drop.

　　4. The defrosting controller fails. If the air conditioner cannot be transferred to the defrosting state in time, frosting of the evaporator will occur when the heat pump is heating, which will affect the heat exchange efficiency of the air conditioner, resulting in insufficient heating capacity or even shutdown. Should pay attention to observe whether the defrosting temperature sensing device is misplaced, the contacts are sticky or poorly contacted, the fan impeller is slipping or the air duct is blocked, the solenoid valve or the starting relay is invalid.

　　 5. The auxiliary electric heating function fails. If the electric auxiliary heating control circuit or electric auxiliary heating equipment fails and cannot work normally, when the ambient temperature is relatively low, the air conditioner will not produce enough heat, and even the air conditioner will not heat at all when the environment is bad.

6. For heat pump-assisted electric-heated air conditioners, if the ambient temperature is high (above 5°C) and heating is normal, but the ambient temperature is low (below 0°C), the heating capacity is insufficient or not heating, then electric auxiliary heating should be suspected If the control circuit or electric auxiliary heating equipment fails, check these two parts when repairing.

　　 (2) Improper use

　　 1. The air conditioner fails to clean the filter in time after a long period of time, and the internal air circulation is blocked, which will affect the heating effect of the air conditioner to a certain extent.

　　2. Thick dust on the evaporator and condenser will also reduce the heat exchange effect, resulting in a decrease in heating capacity and an increase in power consumption; the heating temperature is set too low.

　　3. Unblocked door cracks and wall holes in the air-conditioned room, or frequent opening of windows and doors, causing indoor heat loss, etc., will unintentionally cause the air conditioning to be inefficient.

　　 (3) Environmental factors

Heating and cooling air conditioners are divided into three types: heat pump type, heat pump auxiliary electric heating type and electric heating type. Under the condition of equal heating capacity, the power consumption of the first two is about half less than that of the third. Taking into account the power supply capacity and electricity cost, the current family The first two types of air conditioners are generally selected (but pay attention to their use conditions, the first two are only suitable for environments above -5 ℃, obviously not applicable to northern areas).

　　 heat pump type air conditioner, when heating, the ambient temperature is too low, the energy efficiency ratio of the air conditioner is also reduced, and the heating effect is not ideal in the colder winter, which is normal. For heat pump type air conditioners without automatic defrosting, the low ambient temperature used is 5°C above zero. Below this temperature, no heat is generated or the effect is poor. This is because the frost on the external heat exchanger blocks the air. Because of the flow, heat can no longer be sucked in from the outside; for the heat pump type air conditioner with automatic defrosting, the low ambient temperature it uses is also -5°C, and it can't effectively heat under this temperature.

　　 I have introduced all the knowledge about the difference between 1 HP and 1 HP and the three reasons why the air conditioner does not heat up. I hope I can help you. Before buying an air conditioner, you must understand all aspects, and then make a choice after understanding, this will become very simple.