The English trademark of Tianjin Tiansong Air Conditioner is pamosautc and the English trademark of Panasonic Air Conditioner - Panasonic is somewhat similar. Some people may mistakenly think that there is a connection between the two, but in fact they are unrelated. Two brands. I have never heard of the Tianjin Tiansong brand before, and I cannot find corresponding information about the production company (Tianjin Tiansong Technology Co., Ltd.) on the Internet. The quality, refrigeration performance and after-sales level of the air conditioners produced in this way are worrying. I do not recommend everyone to buy it. It is recommended Everyone is buying air conditioners from first-tier brands. Here are some things to pay attention to when purchasing air conditioners. Buying air conditioners - Brand

A brand is a company that has been tempered and tested in the market for many years and is slowly condensed. It is a symbol of a company and its technology, product quality and reputation. Try to buy well-known brand products, which have larger scale and output, have a complete set of quality management systems, product quality is guaranteed, and the after-sales service system is relatively sound and complete, so there will be no lack of after-sales service. I would rather choose a brand than a no-name brand.

Domestic air conditioner brands that are relatively famous and powerful: Midea, Gree, Haier, Oaks, Chigo, etc.

Japanese air conditioner brands: Hitachi, Daikin, Panasonic, Mitsubishi Electric, etc. Choose from Air conditioner - variable frequency or? fixed frequency

Inverter air conditioner is based on the fixed frequency air conditioner and adds a frequency converter that can be used to adjust the compressor speed - the variable frequency air conditioner inverter, adding frequency conversion control system. After applying frequency conversion technology to air conditioners, the speed of the compressor motor changes, thereby making the amount of refrigerant compressed by the compressor variable, which in turn makes the speed and amount of refrigerant circulation variable. The final result is the cooling capacity or The heating capacity is variable and the temperature control is more precise.

The domestic power grid voltage is 220 volts and 50 Hz. Air conditioners working under these conditions are called "fixed frequency air conditioners". Since the power supply frequency cannot be changed, the compressor speed of traditional fixed-frequency air conditioners basically remains unchanged. They rely on relays to control the compressor, which constantly "starts and stops" the compressor to adjust the indoor temperature. It is easy to cause damage between starting and stopping. The room temperature alternates between hot and cold, and consumes more electricity.

Advantages of frequency conversion:

Fine sound

Saving power when used for a long time without shutting down

Accurate temperature control and high comfort

Advantages of fixed frequency:

Cheap

Recommendation: If it is used in areas such as living rooms/dining rooms where people frequently come in and out, you can choose fixed frequency air conditioners. Because the airtightness of this type of area is extremely poor and the use time is short, the inverter air conditioner will be at maximum power cooling and cannot take advantage of the energy-saving features of the inverter air conditioner.

If it is used in leisure spaces such as rooms and studies, if you have a generous budget, it is recommended to choose an inverter air conditioner, because you can get better comfort. If you have a tight budget, it is recommended to choose a fixed frequency air conditioner, which is not much different from an inverter air conditioner.

If it is used in commercial areas such as shopping malls and companies, it is recommended to choose inverter central air conditioners. Because of its long use time, it can save more energy consumption and expenses. Choosing an air conditioner - the number of horses

Some people may think of horses at the first moment when they see the number of horses, but in the field of air conditioners, a horse is actually a power unit, which means one horsepower. Horse does not refer to the cooling capacity, but the power of the air conditioner. The larger the number of air conditioners, the greater the cooling capacity. Generally speaking, the cooling capacity of one air conditioner is about 2,000 kcal. When converted to international units, it should be multiplied by 1.162, so The cooling capacity of one unit is 2000×1.162=2324W. You can refer to the data in the table below to select the number of units. Purchasing an air conditioner——Energy efficiency grade

Whether an air conditioner saves energy is an important reference data for us to purchase an air conditioner. When purchasing an air conditioner, in addition to comparing the grades of the "China Energy Efficiency Label", we can also compare Energy efficiency ratio, under the same energy efficiency level, the greater the value of the energy efficiency ratio, the more power the air conditioner saves. Machines with level 1 energy efficiency are the most energy-efficient, but they are also the most expensive. From a cost-effective perspective, it is usually more appropriate to buy a machine with level 2 energy efficiency. Choosing an air conditioner - Noise value

Air conditioners are used for cooling and heating, especially when sleeping. Excessive noise will disturb our good sleep, so the noise decibel value is the key factor when we choose an air conditioner. A relatively important reference indicator. We should pay attention to the noise value of the indoor unit of the air conditioner. Usually, the noise control of the inverter air conditioner is better than that of the fixed frequency air conditioner.

Summary: We first determine the brand of air conditioner we want to buy, then choose variable frequency or fixed frequency, then determine the number of units, and finally determine the purchase model based on the noise value, energy efficiency level and special functions of the air conditioner.