What book should I buy in the written test of HVAC technical secondary school?
Handbook of Practical Heating and Air Conditioning Design (Second Edition) (Volume I). According to the introduction of the personal library, Practical Heating and Air Conditioning Design Manual (2nd Edition) (Volumes 1 and 2) is regarded as an indispensable red book for HVAC professionals, which has greatly updated the contents of the first edition and incorporated a lot of new ideas, new technologies, new methods, new equipment and new materials, which is of great significance to the written examination of HVAC professionals.