Advices(s) :

The training difficulty of this lesson is NVQ Level (Vocational Certificate) to A Level (High school Diploma). This online course is useful to all technicians dealing with this type of equipment. Print the associated PDF exercise booklet before studying this lesson. It will enable you to write your answers to the HVAC learning exercises. You will thus be able to switch between reading or listening to the file online and writing in the booklet.