According to Sohu. Com, Hitachi Central Air Conditioning has a 3-year warranty, perfect after-sale, fast and convenient, and the failure rate is 0.4%, ranking first in the world. Hitachi's household central air conditioner is of good quality, and the failure rate is extremely low under normal use.
Hitachi central air conditioning is good, using Hitachi century-old advanced technology, and the quality is absolutely trustworthy. 1983, Hitachi invented the world's first scroll compressor for air conditioning and obtained a patent.