Precautions for installing home elevators?

　　The elevator installation process varies depending on the type of installation—such as installation in new buildings, retrofitting in existing residential buildings, or installing home elevators—but the core stages typically include preliminary preparation, equipment installation, commissioning and acceptance testing, and putting the elevator into operation. Below is a general process and key steps compiled from publicly available information:

　　Core Processes and Steps for Elevator Installation

　　Preliminary Planning and Preparation

　　Demand Assessment and Scheme Design: Based on factors such as building height, intended use, and passenger traffic volume, determine the appropriate type of elevator (e.g., passenger elevator, freight elevator, or residential elevator) and conduct a feasibility assessment. For retrofitting elevators, it is necessary to carry out geological surveys, structural safety inspections of the building, and underground utility line detection.

　　Approval and Filing: Submit an application for elevator installation to the relevant authorities and complete procedures such as public notice of planning and safety review of construction drawing design documents. For new projects, the civil engineering drawings must be approved; for retrofitting projects, owner consensus must be obtained and the proposed plan must be publicly announced.

　　Resource Preparation: Assemble a professional installation team, verify the structural dimensions of the hoistway, machine room, landing stations, and other civil works, take inventory of elevator components, erect scaffolding, and prepare construction tools.

　　Data Center and Shaft Equipment Installation

　　Rackroom equipment installation: Install the traction machine, speed governor, control cabinet, and other core drive and control systems.

　　Rail and Carriage Installation: Install the carriage guide rail supports and the counterweight guide rail supports, and verify the verticality of the rails. Then, sequentially install components such as the carriage beam, carriage frame, guide shoes, bottom plate, and safety gear.

　　Counterweight and Buffer Installation: Install the counterweight assembly, and after suspending the car and counterweight, remove the temporary lifting devices. Install the buffers, ensuring that their centerlines are within an error of no more than 20 mm from the centerline of the bumper plate.

　　Steel Wire Ropes and Compensation Devices: Install traction steel wire ropes that meet the specified requirements, ensuring there are no sharp bends or signs of rust. When the lifting height exceeds 30 meters, install a compensation chain or compensation rope and adjust the guide shoe clearance.

　　Electrical System Wiring: Install power, control, and lighting circuits according to the drawings. Power cables and control cables must be routed separately, and all connections must be enclosed within junction boxes.

　　Installation of Door Systems and Safety Devices

　　Installation of the hall door and car door: Install the door frame, door leaves, and threshold; adjust the gap between door leaves (typically requiring a verticality tolerance of ≤1.5/1000 and uniform door gaps); ensure smooth operation with no noise during opening and closing.

　　Limit and Sensing Devices: Install upper limit switches, lower limit switches, and sensors to ensure that the elevator automatically stops at the terminal stations.

　　Electrical interlock device: Install an electrical interlock on the hall doors to ensure that the elevator cannot start if the doors are not fully closed.

　　Debugging, Testing, and Delivery

　　No-load and Load Testing: Conduct operational tests under no-load, rated load, and overload conditions to verify operational stability, noise levels, leveling accuracy, and other performance parameters.

　　Supervisory Inspection: The installation supervisory inspection shall be conducted by a special equipment inspection agency, which will issue an inspection report.

　　Registration and Labeling: Obtain the “Elevator Use Registration Certificate” from the market supervision authority, affix emergency response signage, and integrate the elevator into the emergency response platform.

　　Maintenance handover: Identify the maintenance provider, sign a maintenance contract, and provide usage training to the property management or homeowners.