o HVAC- Read and understand architectural Drawing- Project data collection ( orientation elevation walls exposure floor area no. of people lighting load electrical equipment’s load widows )- Load Estimation by ( Quick sizing (ASHRAE) - HAP software Revit )- Make a report Include ( total coil load sensible coil load cfm entering db/wb temp outdoor ventilation )- Use HAP report to make unit selection{ DX system (Decorative, Concealed, Packaged) Chilled water system ( air cold chiller water cold chiller) }- selection for (FCU AHU) Depending on Cooling Capacity, CFM, gpm- selection for Cooling tower- selection for PUMP Depending on gpm, Pressure Drop- selection for HOOKUP of all systems - Air outlet selection ( square round linear bar linear slot jet diffuser ) Depending on- ( total air flow rate no. of supply no. of return position NC air throw pressure drop )- Duct systems design (rectangular round) By Mcquay Duct Sizer Depending on (air flow rat duct fitting accessories )- External Static presser calculation- Design Drawings ( Autocad Revit)- BOQ & SpecificationsDx decorative system Dx ducted system Chilled water system Cad RevitDuct sizerashrae duct fitting Hap 4.9Designer Mechanical engineerheating, ventilating, and air conditioningAmerican Society of Heating, Refrigerating and Air-Conditioning Engineers (: American Society of Heating, Refrigerating and Air-Conditioning Engineers) (ASHRAE) (: HVAC).