1. Installation of the main engine: the main engine is generally installed in the ceiling of the balcony, kitchen or bathroom, and the installation position of the main engine is selected at the place with the least required air duct length to reduce pipeline resistance.

2. The main engine should be fixed firmly to avoid running noise, and the lower ceiling should use a movable roof or leave a manhole.

3, pipeline installation, pipeline every 151cm an elevator, pipeline requirements horizontal flat vertical, each joint with glue, to ensure the reliability of pipeline connection. In the area with hoses in the pipeline, an elevator shall be installed every 71cm, and the elevator bolts shall be long bolts.

5. The air outlet is installed on the ceiling of the bathroom and kitchen. The indoor air enters the main engine through the air outlet, and then enters the flue through the main engine.