ITI Book Refrigeration & Air Conditioning Theory Books is by Manish Sharma. Refrigeration & Air Conditioning Theory Books is according to Latest NSQF Level. Refrigeration & Air Conditioning Theory Books is according to latest syllabus of DGT(NCVT). Refrigeration & Air Conditioning Theory Books is for I Year, II Year. Refrigeration & Air Conditioning Theory Books is for ITI trade Mechanic (Refrigeration and Air-Conditioning), Refrigeration and Air Conditioning .