Carriers’ Technical Development Program is a review of basic engineering principals and system applications in the HVAC industry. The topics to be covered include: Rooftop Units Level I – Constant Volume, Rooftop Units Level II – VAV Rooftops, Commercial Split Systems, Central Station Air Handlers, Air Cooled Chillers, Water Cooled Chillers, Psychrometrics, Load Estimating, Duct Design, Water Piping Design, Refrigeration Piping Design, and Refrigeration Cycle. Water piping and pumping is a fundamental cornerstone of HVAC design. The correct layout, selection and sizing of the piping system and associated hydronic components is required to properly deliver chilled and hot water to properly maintain comfort conditions. Piping connections at various equipment are covered, along with piping arrangements for chilled water systems. This lesson also touches on pump basics, sizing and selection.