The following procedures are required to install the seat elevator in the corridor:

1. Entrust a design unit with corresponding qualifications to design the engineering drawings and solicit the opinions of relevant owners. According to the design requirements, the old building with elevators meets the relevant specifications and standards in terms of building spacing, building sunshine, fire safety, building graphic design and structural safety.

2. declare the above-mentioned design scheme to the planning department, and carry out a series of steps such as publicity before approval, design modification and soliciting opinions.

3. after the design scheme of the chair elevator is reviewed, the construction unit and supervision unit shall be determined, and the safety and quality supervision registration formalities shall be handled in the construction administrative department to obtain the construction permit.

for specific operation, please consult relevant departments.