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Why a strong specification matters
Clear specifications reduce substitution risk, protect comfort and deliver predictable running costs. They also make commissioning faster and give asset owners confidence that the system will do what is required over its life.
State the target relative humidity and tolerance, the indoor and outdoor design temperatures and the calculated moisture load. Record the calculation method. Select the technology family that suits the band and climate and nominate a recognised product family as the basis of design. Allow equal only where full compliance with performance and controls is demonstrated.
Specify airflow at duty and the intended air paths. For pool rooms, require glazing wash and comfort around seating. Where the environment is corrosive, call up materials and finishes that are appropriate for long life.
If fresh air is required, state the volume and whether energy recovery is needed. Call up sensible or total recovery as suits the application and climate.
List the control strategy, sensors, alarms and the communication method where connection to a Building Management System is required. Include the points list for visibility and trending. Keep the operator interface clear and consistent.
State the supply, the maximum current, any soft start or variable speed requirements and the local wiring standard. Confirm enclosure ratings where plant is outdoors and compliance with relevant Australian standards.
Require documented testing at duty, trend samples and operator training. Include a maintenance plan and a recommended spare parts list to support the asset over its first years.
Ask DEHUM to review your project brief and provide performance wording
