The selection basis is as follows:

1. Choose air-conditioning equipment suitable for Shenzhen climate, such as frequency conversion multi-unit and air duct machine.

2. Choose suitable air conditioning equipment according to the area and layout of the restaurant, and ensure uniform air supply and good cooling and heating effect.

3. Choose air-conditioning equipment with high energy efficiency to reduce operating costs.

4. Choose air conditioning equipment with less noise and vibration to improve the dining experience of customers.

5. Choose air conditioning equipment that is easy to maintain and maintain, so as to reduce the later maintenance cost.