Assessor Resource
CPCPGS4011C
Design and size consumer gas installations
Assessment tool
Version 1.0
Issue Date: May 2024
Site location for work application may be either domestic or commercial, and may be a new work site or an existing structure being renovated, extended, restored or maintained.
This unit of competency specifies the outcomes required to design, size and document a consumer's gas installation, including consumer piping operating up to a pressure of 200kPa, fluing, ventilation and appliance installation associated with natural gas (NG), simulated natural gas (SNG), liquefied petroleum gas (LPG) and tempered liquefied petroleum gas (TLPG) for a building of minimum four floors and multiple buildings supplied through one gas source (billing meter or storage tank).
It covers preparing for work, determining gas installation design requirements, detailed planning of the layout, and completing work finalisation processes, including records and documentation.
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