Properties of Air (Psychrometry) This is the 4th part of the complete HVAC course. Lets start.. Types of RCP's (Reflected Ceiling Plan / False Ceiling Plan) : There are three main types of false ceiling, Flat or plain false ceiling, Step false ceiling and Tiles false ceiling. * Flat or Plain False ceiling : It can be used in cinema halls, waiting halls, theaters, seminar halls, function halls, supermarkets etc. * Step False ceiling : This type of false ceiling is used in Seminar halls, conference rooms etc. * Tiles False ceiling : Tiles false ceilings are used in offices, etc. Psychrometry : It is the science dealing with physical loss of air and water mixture (or) Atmospheric air that surround us is a mixture of dry air and water vapor called moist air. Because this gas mixture is conditioned in AC system, it is necessary to understand how it behaves ? It is the nam...