Cross-flow fan is a commonly used local ventilation fan, with the characteristics of fluid flowing through the fan impeller twice, the direction of air intake and exhaust is in the same plane, it is widely used in air purifiers, air curtains, cold wine coolers, fireplaces, cold cabinets, solariums, subways, harvesters and other equipment. Installation and maintenance of crossflow fans require some steps and tips, here are some suggestions:

1. Preparation: Before installing a crossflow fan, you need to prepare the required tools and materials, including screwdrivers, wrenches, pliers, insulating tape, lubricating oil, and so on. At the same time, you need to make sure that the power cord and plug of the crossflow fan are intact, and that the voltage and current of the power outlet meet the requirements of the crossflow fan.

2. Installing the fan: Place the crossflow fan in the location that needs to be ventilated and make sure that the air inlet and outlet of the fan are connected to the area that needs to be ventilated. Then, use a screwdriver to secure the fan to the wall or ceiling and make sure the fan is mounted firmly and stably.

3. Connect the power supply: Plug the power cord of the crossflow fan into a power outlet and make sure that the power cord is firmly connected. Then, turn on the power switch to check if the fan is running normally and make sure the fan's running sound is normal.

4. Adjust the air speed: As needed, you can use the air speed adjustment button of the crossflow fan to adjust the air speed of the fan. Generally speaking, the wind speed of the cross-flow fan can be divided into three grades: low speed, medium speed and high speed, which can be adjusted according to the needs of users.

5. Maintenance: Regular maintenance of the crossflow fan can prolong the service life of the fan. It is recommended to clean the fan every once in a while by wiping the surface of the fan with a damp cloth and making sure that the air inlet and outlet of the fan are unobstructed. At the same time, you can use lubricant to lubricate the bearings of the fan to reduce the friction and noise of the fan.

6. CAUTION: When using a crossflow fan, the following points need to be noted:

- Do not place the crossflow fan in a humid or flammable or explosive environment.

- Do not use the crossflow fan for purposes other than ventilation, such as heating or cooling.

- Do not move the fan or unplug the power cord while the crossflow fan is running.

- If you notice any abnormality in the crossflow fan, stop using it immediately and contact a service professional for repair.

In conclusion, installing and maintaining a crossflow fan requires some tips and precautions. Through proper installation and maintenance, you can ensure the normal operation and prolong the service life of the crossflow fan.