Buy air conditioning-brand brand is a symbol of an enterprise and its technology, product quality and reputation, which is gradually condensed after years of market tempering and testing. Try to buy well-known brand goods, with large scale and output, a complete set of perfect quality management system, guaranteed product quality and perfect after-sales service system, and there will be no after-sales return. Choose brands instead of miscellaneous brands.
Domestic well-known and powerful air-conditioning brands: Midea, Gree, Haier, Oaks, Chigo and so on.
Japanese air-conditioning brands: Hitachi, Daikin, Panasonic, mitsubishi electric, etc.
Buy air conditioning-frequency conversion or? Fixed-frequency variable-frequency air conditioning is based on fixed-frequency air conditioning, adding a frequency converter that can be used to adjust the speed of compressor-variable-frequency air conditioning frequency converter, and adding a variable-frequency control system. After the frequency conversion technology is applied to air conditioning, the rotational speed of the compressor motor changes, thus changing the amount of refrigerant compressed by the compressor, and then changing the speed and amount of refrigerant circulation. The end result is that the cooling capacity or heating capacity can be changed, and the temperature control can be more accurate.
The voltage of domestic power grid is 220 volts and 50 hertz, and the air conditioner working under this condition is called "fixed frequency air conditioner". Because the power supply frequency cannot be changed, the compressor speed of traditional fixed frequency air conditioner is basically unchanged. The relay controls the compressor and constantly "turns on" and "turns off" the compressor to adjust the indoor temperature, which easily causes the room temperature to be hot and cold between on and off, and consumes more electricity.
Advantages of frequency conversion:
mute
Save electricity by not turning off the phone for a long time.
Accurate temperature control and high comfort.
Advantages of fixed frequency:
cheap
Suggestion: If it is used in living room/dining room and other areas where people frequently go in and out, you can choose fixed frequency air conditioning. Because the space of this kind of area is extremely airtight and the service time is short, the inverter air conditioner will be in the maximum power refrigeration state, and the energy-saving characteristics of inverter air conditioner cannot be exerted.
If it is used in rooms, study rooms and other leisure spaces, it is recommended to choose inverter air conditioner with sufficient budget, because it can get better comfort, and it is recommended to choose fixed frequency air conditioner with tight budget, which is not far from inverter air conditioner.
If it is used in shopping malls, companies and other commercial fields, it is recommended to choose variable frequency central air conditioning. Because it is used for a long time, it can save more energy consumption and expenses.
Buy air-conditioner-when people see the number of people, they may think of horses at first, but in the field of air-conditioner, a horse is actually a unit of power, that is, the power of a horse. Horse refers not to the cooling capacity, but to the power of air conditioning. The more air conditioners, the greater the cooling capacity. Generally speaking, the refrigeration capacity of 1 air conditioner is about 2,000 kcal, which is converted into international units and multiplied by 1. 162, so the refrigeration capacity of a horse is 2000× 1. 162 =
Choosing air conditioners-Whether air conditioners save electricity or not is an important reference data for us to choose air conditioners. When choosing air conditioners, we can not only compare the rating of "China Energy Label", but also compare the energy efficiency ratio. Under the same energy efficiency level, the greater the value of the energy efficiency ratio, the more energy-saving the air conditioner. 1 Energy-efficient machines are the most energy-efficient, but they are also the most expensive. From the perspective of cost performance, it is usually more appropriate to buy a level 2 machine.
Choose air conditioning-noise air conditioning is used for cooling and heating, especially when sleeping. Excessive noise will disturb our good sleep, so the noise decibel value is an important reference index for us to choose air conditioning. We should pay attention to the noise value of the indoor unit of the air conditioner. In general, the noise control of variable frequency air conditioner is better than that of fixed frequency air conditioner.
Summary: We first determine the brand of air conditioner we want to buy, then choose frequency conversion or fixed frequency, then determine the number of passengers, and finally determine the purchase model according to the noise value, energy efficiency grade and characteristic function of air conditioner.