METHOD FOR CLEANING PIPING OF AIR CONDITIONER

摘要

PROBLEM TO BE SOLVED: To provide a simple method for cleaning an air conditioner capable of obtaining a long-term reliability at a low cost even by utilizing exiting piping for the conditioner using an HFC refrigerant by realizing cleaning of the piping in a short time. SOLUTION: The method for cleaning the air conditioner comprises the steps of conveying a cleaning member from one piping port of inner and outer connecting piping of the conditioner via a compression gas and removing a foreign matter retained in the piping from another piping port. In this case, a pipe having bendability is connected to the piping port for discharging the member, and a leading end of the pipe is covered with a net-like bag.