However, there are also some drawbacks to air conditioners with a pipe. One limitation is that the length of the pipe can affect the efficiency of the unit. Longer pipes can decrease the airflow, which may reduce the cooling capacity of the air conditioner. Additionally, the need to expel hot air outside can be a challenge in some situations, such as in apartments or buildings with strict regulations on external modifications.

Evacuation and Charging: After installing the hoses, perform an evacuation process to remove any air and moisture from the system. Then, charge the air conditioning system with the appropriate refrigerant according to the manufacturer's guidelines.

Compatibility and Sizing: Ensure that the air conditioning hoses are compatible with the bus's air conditioning system and that they have the correct sizing and specifications. Using the wrong size or type of hose can lead to performance issues and refrigerant leaks.