This ventilation ductwork checklist can be used and completed throughout the project and its different stages covering:
- installation &
Once the pre-functional checks have been completed, including all equipment and ancillaries related to the ventilation system, the full functional testing/commissioning can be conducted.
This checklist should be used and completed throughout the project, and its different stages, delivery, storage, installation & pre-commissioning, before the functional testing occurs.
Once the ductwork has arrived on-site, usually delivered by a transport company, and before being unloaded and accepted into storage, the following should be checked with the driver.
Any damage that is noted should be reported to the manufacturer/supplier immediately in writing supported with photographs.
|1||Supplier's consolidated delivery ticket is available, showing all equipment and ancillaries for inspection and being used to check against.|
|2||A copy of the order that was sent to the supplier is available for reference and is being used to check against|
|3||The ductwork, flexible ducting, grilles/louvers and dampers are packaged, protected, for maximum protection|
|4||The labels on the ductwork sections and technical details/sizes match the purchase order and drawing.|
|5||Delivery protection is dry|
|6||Ductwork is dry|
|7||The flanges and frames of the ductwork are undamaged|
|10||Ductwork, if ordered, is pre-insulated.|
|11||Bracketry, if ordered, is included in the delivery.|
If the ductwork is to be placed into storage on site prior to installation there will be an inspection completed checking the following.
|1||The area is internal and will not be affected by the weather.|
|2||The surface where the equipment is to be placed is level.|
|3||The equipment will be raised from the floor to allow airflow and stop the risk of water ingress.|
|4||The area is well covered and protected.|
|5||The area is well ventilated and has no risk of high humidity.|
|6||The area is clean & dust-free.|
|7||The area is secure and protected from the movement of other materials and vehicles.|
Storage of Ductwork
Prior to the ductwork being placed into storage, the following should be checked.
|1||Ductwork and ancillaries will not have materials stacked on them.|
|2||All ancillaries will be placed in a safe and secure location, so items do not go missing or get damaged.|
|3||All original packaging is intact and not removed.|
|4||Ductwork and ancillaries are covered to protect from dust and dirt|
Prior to the ducting being installed the following should be checked.
|1||The ductwork is clean and free of damage.|
|2||All holes are cut and available through walls.|
|3||All holes are cut and available through floors for risers.|
|4||The room/area is dry and watertight.|
|5||The room/area the ducting will be installed into is clean and dust-free. If there is dust/construction work, then the ducting should be protected, ends capped.|
|1||There is enough space allowed around and above any areas of the system/ductwork that will require future maintenance. [check the manufacturers maintenance instructions for requirements]|
|2||All-access doors can be fully opened to gain access to the damper and components.|
Once the ducting has been installed and prior to the functional testing and commissioning phase taking place the following will be checked.
|1||The ductwork is clean and free of damage prior to installation.|
|2||Ductwork is installed in accordance with SMACNA HVAC Duct Construction Standards.|
|3||All hat sections and standoff brackets are at the same height as the duct lining.|
|4||Access doors are installed in all casing, plenums, ductwork adjacent to fire dampers, automatic dampers, smoke dampers, and reheat coils, and as indicated on drawings.|
|5||The access doors are easily openable and not obstructed.|
|6||All galvanized sheet metal is separated from aluminum and copper with lead or felt gaskets, where required.|
|7||Ductwork is structurally sound to prevent drumming and sagging.|
|8||All transverse and longitudinal joints are sealed.|
|9||All branch and tee connections are at 45 degrees.|
|10||All medium pressure branch and tee connections are expanded 30 degrees on at least three sides.|
|11||Ductwork meets static pressure requirements specified for the system and leakage class for those pressures as defined by SMACNA HVAC Duct Construction Standards.|
|12||All ductwork except as noted in the specification is leak tested.|
|13||Elbows have an inside radius equal to a minimum of 3/4 of the width of the duct.|
|14||All square elbows and radius elbows larger than 18 inches [460mm] have turning vanes.|
|15||All wall and floor penetrations are sealed, and the fire stopped where required.|
|16||Volume dampers, grilles, terminal units, etc are provided and installed as per the ventilation drawings.|
|17||All duct openings are temporarily sealed to maintain duct system cleanliness.|
|18||Ductwork is insulated and vapor sealed|
|19||Ductwork is clearly labeled in line with project requirements|
Here is our open copy [MS Word] of the DUCTWORK Pre-Functional Checklist, for making life a little easier...
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|1||Flexible ductwork is clean and free from damage.|
|2||Flexible ducting is insulated where required|
|3||Flexible ductwork is free of sags and kinks.|
|4||Flexible ductwork is installed using extra heavy flexible duct straps.|
|5||The maximum length of flexible ductwork is 5 feet [1700m]|
|6||Flexible ductwork does not penetrate walls.|
|7||Flexible ductwork does not have 90-degree bends.|
|8||Flexible ducting is fixed with the correct methods to the ducting and grille boxes etc.|
Attenuator and Silencers
|1||Attenuators, where installed, are clean and free from damage.|
Grilles and Terminal Diffusers
|1||Grilles and diffusers, where installed, are clean and free from damage.|
|2||Grilles and diffusers, where required, have dampers for volume control.|
|3||Plenum boxes, where installed, are clean and free from damage.|
|4||Plenum boxes, where required, are insulated.|
|1||All drawings have been updated to reflect any changes made.|
Ventilation Ductwork Pre-Commissioning Checklist [PDF]
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