complex HVAC/R control system design, safe working practices and relevant standards, codes and regulations, including: advanced HVAC/R control system design: control diagrams: Australian standard and non-standard symbols as used in a variety of typical HVAC/R systems control diagrams electric/electronic control diagrams electrical installation documents pneumatic diagrams direct digital control (DDC) diagrams controls/electrical power circuit interface nomographs extraction of specific information relating to the operation and control of plant from a variety of typical HVAC/R control diagrams development of control diagrams to required standards given specific system operating parameters control design requirements: standard and statutory requirements economy of operation (energy management) the desired or most appropriate system operating logic for a specified HVAC/R system appropriate mode of control for a specified HVAC/R system control system type selection for specific applications with due to regard to plant size, application, operating environment, available control power supply options, economy and computability to existing or proposed plant and control system components required to assemble and operate the control system of a specified HVAC/R system HVAC/R system energy conservation methods: HVAC/R system control: night cycle optimum stop/start purge cycles chiller/boiler/cooling tower sequencing economy cycles (based on temperature or enthalpy) supply air reset condenser water temperature reset electrical load control: power demand control load limiting load shedding set point relaxation ventilation cycles building management systems: functions of a building management system: autonomous functions input/output (I/O) general I/O installation management items energy management risk management information processing objectives building running costs smoke control as per AS 1668.1 The use of ventilation and air conditioning in buildings - Fire and smoke control in buildings building management system hardware: system architecture communication devices substations personal computers interfaces with other systems I/O functions: digital - I/O digital output with status feedback analogue input/output sensors alarms control sequences problem-solving techniques relevant job safety assessments or risk mitigation processes relevant manufacturer specifications relevant WHS/OHS legislated requirements relevant workplace budget, quality, policies and procedures relevant workplace documentation. |