HVAC air systems, safe working practices and relevant standards, codes and regulations, including: air distribution principles: air diffuser selection factors affecting the design of ductwork systems types of ductwork systems static, velocity and total pressure laminar and turbulent flow moody diagram parameters that control cost pressure loss: friction and dynamic colebook - White formula in ducts and friction charts in fittings and loss co-efficient fitting selection criteria diffuser pressure loss system sizing: velocity method equal friction method static regain method balanced pressure drop method circular to rectangular equivalent standard duct sizes and gauges balancing heat and leakage losses: heat gain/loss calculation bare vs. insulated leakage overview of noise in duct systems: noise sources in duct systems attenuation impact on design methods of control fans: types and characteristics fan laws system effect fan selection fan and system curves air systems: dual and single duct constant volume variable volume induction units multi-zone diversity factors HVAC systems HVAC hydronic systems, safe working practices and relevant standards, codes and regulations, including: systems operation closed/open systems pump head/lift and static head (high-rise building) system friction losses nett positive suction head system curves pumps: types selection criteria performance characteristics bladder tanks coil characteristics heat exchangers: plate, shell and tube, and tube in tube flow measurements: types flow switchers builders: types and performance characteristics cooling towers: elementary cooling thermodynamics and types valves - flow control devices: types and applications throttling characteristics flow measurements selection and applications piping systems: balancing and commissioning air venting water treatment vacuum breaking and air breaks relevant industry standards relevant job safety assessments or risk mitigation processes relevant manufacturer specifications relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace quality, policies and procedures. |