Tank Drawing

Checks for Modelling

• Check consistency of tank model name to Schematic / test reports
• Check all annotations /labels are present on drawing:
  • Height or volume above of all inlets and outlets (water entry/exit point on diptubes), element, thermostat, sensors, coil top and bottom.
  • Tank diameter, thickness and material.
  • Coil diameter, thickness, length and material.
  • Other requirements as per CER
  • Provide feedback to client for required changes.
• If in doubt, use “Tank Volumes” sheet in TRNSYS tool to calculate tank volumes using Excel calculator and compare with provided values
• Confirm HP, sensor and/or element positions meet Legionella requirements
  • If 45% heated to 60degC daily, daily HP sensor must have >45% volume above
  • If 90% heated to 60degC weekly, weekly HP/element sensor must have >90% volume above
  • Check AS 3498 Clause 7.i.j for more details
• Confirm fitting positions meet flow control requirements
  • AS/NZS 4234:2008 Clause H4.2

Send Client Templates to Replicate

• Send the client the Tank drawing data table (excel spreadsheet) with all the data to be added to the drawing.
• Send the client the example tank drawing that represents the client’s tank (similar design) ie microchannel condenser tank.

Checks for Audit Submission

• Confirm that the system and tank model names match the 2712 certificate.
• If there are differences, include a “read me” file in the audit stating:
  &#xNAN;“The system model name in the drawing corresponds to the tank drawing used for the system model name. The two models are identical except for the naming (see declaration/authorization letter).”
• Ensure the tank drawing:
  • Shows the height of all tank positions (inlets, outlets, sensors, elements).
  • Includes a data table with all volumes, HX dimensions, tank wall thickness, etc.