Buy air conditioners, these concepts should not be confused

Buy air conditioners, these concepts should not be confused

In the hot summer, air conditioning has an irreplaceable important position in modern people's home life. From imported Daikin and Toshiba to local Carrier, Copeland and Danfoss, the gathering of numerous brands often dazzles consumers. Finding a favorite and cost-effective air conditioner among the many choices is an issue that many consumers care about. Below, the reporter will introduce several shopping concepts.

　　 What is the number of air conditioners?

　　Many consumers are very concerned about the cooling capacity of the air conditioner when they buy air conditioners, but they do not understand the names of 1 horse, 1.5 horses, 1 horse, and 1.5 horses. In fact, it is very vague to use the concept of "horse" to describe the output cooling capacity of air conditioners.

　　"Hp" originally refers to the output power of the compressor motor, and the output power of the compressor motor of 1 HP air conditioner is 735W. As far as the current market is concerned, 1 HP machine actually refers to an air conditioner with an output cooling capacity of about 2500W, a 1.5 HP machine refers to an air conditioner with an output cooling capacity of about 3500W, and a 2 HP machine means an output cooling capacity of about 5000W. Air conditioner. Note that 2500W, 3500W, and 5000W here are not the output power of the air conditioner, but the output cooling capacity.

　　 For a specific room, although many consumers want to know an accurate calculation formula, there is currently no accepted and simple calculation method. A more thoughtful and reliable suggestion is: 1 HP machine is suitable for a room of about 14 square meters; 1.5 HP is suitable for a room of about 18 square meters; 2 HP machine is suitable for a room of about 30 square meters.

　　How to choose variable frequency and fixed frequency?

　　Household air conditioners are divided into two types: variable frequency and fixed frequency, and the latter is usually more affordable. However, the ability of an air conditioner with the same horsepower to adjust the indoor temperature is greater than that of a fixed frequency air conditioner, and because the inverter air conditioner can achieve precise temperature control, it can prevent "air conditioning disease" to a certain extent.

At the same time, the continuous low-frequency operation of the inverter air conditioner has neither frequent start-up inrush current nor long-term high-power operation like the fixed-frequency air conditioner, and there is no electric auxiliary heating element that consumes electricity. Therefore, the inverter air conditioner is more energy-efficient than the fixed-frequency air conditioner. Power saving.

　　 It should be noted that although inverter air conditioners can save electricity, consumers must distinguish between "DC inverter" or "AC inverter" when purchasing. The efficiency of the DC inverter compressor is 10% to 30% higher than that of the AC inverter compressor, and the noise can be reduced by 5 to 10 decibels.

In addition, the energy-saving effects of different air conditioners are different. The energy efficiency ratio of the air conditioner = the cooling capacity ÷ the cooling power. The formula calculation shows that under the same horsepower, the air conditioner with high energy efficiency ratio is more energy-efficient and energy-saving than the air conditioner with low energy efficiency ratio. .

　　 Which indicators should be paid attention to?

　　 Cooling capacity: It is an important basis for consumers to purchase air conditioner products. If the cooling capacity is too small, the predetermined cooling effect cannot be achieved; if the cooling capacity is too large, it will cause a waste of resources. National standards stipulate that the actual measured value of the cooling capacity should not be less than 95% of the rated value.

　　 Energy efficiency ratio: refers to the ratio of the cooling capacity to the effective input power when the air conditioner is in cooling operation. The magnitude of this value reflects the energy saving of air conditioner products. The larger the value of the energy efficiency ratio, the smaller the electric power that needs to be consumed, and the lower the power consumption.

　　Noise: The noise generated when the air conditioner is running. Excessive noise will seriously affect the lives of consumers.

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　　 These signs must be recognized

　　 When consumers buy air-conditioning products, in addition to purchasing based on brand, performance, specifications, etc., various quality certification marks can also be used as reference objects.

　　 1. CCIB mark: China Import and Export Commodity Inspection Bureau inspection mark.

　　 2. "Great Wall" mark: China Electrical Products Certification (CCEE) quality certification mark.

　　3.AS mark: The Australian Standards Association (SAA) is used for electrical and non-electrical products. It is protected by the Commonwealth Commercial Regulations and is internationally used.

　　4.BEB mark: the inspection qualification mark of the British Underwriters Laboratory. This sign is common in many countries in the world and is authoritative.

　　 5. UL mark: Underwriters Laboratories certification mark.

　　6.JIB mark: The mark issued by the Japan Organization for Standardization (JIB) for its qualified electrical products and textiles.

　　 7. CECC mark: European electrician certification mark.