Classification of air regulators and considerations for the purchase

An air regulator is a unit used to provide a space area (generally enclosed) to handle air temperature changes. Its function is to regulate parameters such as temperature, humidity, cleanliness, and an airflow rate of the air in the room (or enclosed space or area) to meet the requirements of human comfort or process.

Here is the content list:

• Classification of Air regulators

• Air regulator product selection considerations

Classification of Air regulators

There are various ways to classify air regulators. There are two types of air regulators, integral and split, according to their structure. The integral type has window type, through the wall type; split type is divided into two parts: an indoor unit and outdoor unit, indoor unit has ceiling type, wall type, floor type, embedded, desktop, etc. The function is divided into cold air type, heat pump type, cold air dehumidification type, cold air heat pump dehumidification type, heat pump auxiliary electric heating type, etc.; the cooling method is divided into water-cooled and air-cooled types. Home air regulators are generally air-cooled.

Air regulator product selection considerations

1. Selected room air regulator, in addition to the room design required to select the cold load, but also need to consider the air regulator circulation air volume (medium speed), to meet the room 4 times per hour the number of air changes required for the load.

2. In the selection of air regulators should pay attention to the following issues.

• Products with a higher energy efficiency ratio (performance coefficient) should be selected. The measured value of the energy efficiency ratio of the air regulator should be greater than or equal to the value specified in Table 1. According to the actual energy efficiency ratio of the product, the energy efficiency grade of the product shall be judged according to Table 2.

  
  

• When selecting equipment, the actual cooling capacity and heating capacity of the air regulator selected should be considered to be lower than the rated cooling capacity and heating capacity, which can be 5% lower according to the standard.

  
  

• The working environment of the air regulator should not exceed the range of T1 in Table 3 (domestic use is mostly T1 type).

  
  

• Products with lower noise values should be selected. The value listed in Table 4 is the measured value at 1m or 1.4m from the equipment in the semi-anechoic chamber.

3. The design should consider the installation position of the outdoor unit. The concrete platform should be reserved and condensate drainage risers and branch pipe connections should be pre-set.

4. The design of a split-type air regulator should consider the correction of the length of the refrigerant pipe when selecting the cooling capacity (general pipe length is 5m).

5. An inverter air regulator uses a variable frequency compressor, the inverter air regulator can automatically adjust the cooling and heating capacity according to the changes in the cooling and heating load of the room, reducing energy consumption and achieving the effect of energy-saving. Inverter air regulators with the same rated capacity as fixed-frequency air regulators compared to the time to reach the set temperature are about 30 ~ 40% shorter.

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