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[Air conditioning heating effect is not good, what are the common reasons?]
Release date:[2023/12/21] Is reading[155]次

1, What is the main principle of air conditioning heating?

A: The heat in the air is mainly absorbed through the outdoor unit, and the refrigerant in the pipeline is circulated to bring the absorbed heat to the indoor unit, and the heat is provided to the indoor room through the work of the indoor unit, so that the indoor temperature is increased.

2, why the colder the weather, the worse the heating effect?

A: Mainly because the colder the weather, the lower the outdoor temperature, the difficulty of air conditioning heating from the outdoor air environment to absorb the heat of the air is increased, resulting in relatively poor heating effect.

3, why below -5 degrees, it is recommended to use other equipment for heating?

A: When air conditioning heating in winter, the air conditioner absorbs the heat of the outdoor air through the outdoor heat exchanger (condenser), and then transmits the heat to the room through the heat exchanger (evaporator) of the indoor unit. At the same time, when heating, the outdoor unit heat exchanger is used as the evaporator, when the outdoor temperature is lower than -5 degrees, the heat transfer temperature difference between the condenser and the outdoor air will be close to 0. Therefore, there is no heat exchange effect, so the overall heating effect of the air conditioner is poor, or even cannot be heated. Therefore, it is necessary to start the auxiliary electric heating function of the air conditioner, or use other heating equipment.

4. Why should the air conditioner defrost?

A: When heating in winter, because the evaporation temperature of the outdoor heat exchanger (that is, the condenser) is lower than zero, the outdoor air flowing through the condenser will condense on the fin and frost, frost will affect the heat exchange area of the condenser and the air flux, thus affecting the heating effect of the air conditioner. Therefore, in order to ensure the heating effect of air conditioning, defrost work must be carried out.

5, how to judge whether an air conditioning heating is normal?

A: The standard of air conditioner refrigeration heating test: after 15-20 minutes of boot, in the indoor inlet and outlet 10-20mm with the thermometer test head to measure the temperature, refrigeration inlet and outlet temperature difference should not be less than 10℃, in the heating state (heat pump type air conditioning) inlet and outlet temperature difference should not be less than 15℃, electric auxiliary heat type air conditioning inlet and outlet temperature difference should not be less than 23℃;

6, the temperature of the outlet, why can't represent whether the machine has a problem?

A: The temperature of the air conditioner outlet can not be used to determine and measure whether an air conditioner is normal. The normal determination and measurement standards of air conditioning are mainly determined by the temperature difference between the air inlet and the air outlet when the air conditioner is heating. As long as the temperature difference between the air inlet and the air outlet reaches the standard, we can determine that the air conditioner has no problem.

There are many other factors to determine the formation of the temperature of the outlet, one is the matching problem of the machine and the environment, the second is the temperature of the air in the room itself, and other external influences. The power of the air conditioner itself is certain, the air volume is also certain, and the normal judgment of the machine is mainly judged by their ability to improve the air temperature after passing, that is, the temperature difference between the import and export to determine! If the temperature of the inlet itself is high, then the temperature of the outlet is high, and on the contrary, the temperature of the outlet will be correspondingly low. A rising tide lifts all boats. Therefore, the temperature of the outlet can not be used to evaluate and judge whether a machine is a normal sign of heating and cooling.

7, why has the air conditioner been on, to a certain extent why the temperature is difficult to rise?

A: The room temperature is low, so the air conditioning heating on the room temperature is more obvious. As the temperature of the room increases, the difference between the indoor temperature and the outdoor temperature increases, then the heat transferred from the indoor to the outdoor will be more, and the indoor temperature will rise slowly. When the temperature difference reaches a certain extent, the heat generated by the air conditioner is just transferred to the outside and neutralized, so at this level, the temperature will not rise again.

8, why the air conditioning in the heating, will often hear the bang?

Answer: Most of the exterior parts of the air conditioner indoor unit are made of plastic, when heating (refrigeration is the same), the thermal expansion and contraction of plastic parts, the sound generated by the tiny deformation of the shell, is normal, and the situation will slowly disappear after the plastic parts are shaped.


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Industrial air conditioning, chemical fiber industrial air conditioningchemical fiber industry refrigeration ,textile industrial air conditioning dust-free workshop coolingventilation pipeline, cooling tower, freezer and other air conditioning units and accessories.

Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. is a comprehensive manufacturer of special air-conditioning equipment design, production, installation, and commissioning of clean room, electricity, tobacco, civil air defense engineering, medical clean room, clean room, electricity, tobacco, civil air defense engineering, medical clean room. Mainly produce JCZK combined air conditioning unit, cooling tower, glass steel ventilated galvanized sheet pipe, stainless steel pipe, polyurethane ventilation pipe and air conditioning accessories, Jincheng air conditioner is wide, the type, the unique model, superior performance, and user Favused.


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