This ventilation ductwork checklist can be used and completed throughout the project and its different stages covering:
- delivery,
- storage,
- installation &
- pre-commissioning/pre-functional
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.
Delivery Inspection
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.
Ref | Inspection/Task |
---|---|
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. |
Storage Inspection
Storage Area
If the ductwork is to be placed into storage on site prior to installation there will be an inspection completed checking the following.
Ref | Inspection/Task |
---|---|
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.
Ref | Inspection/Task |
---|---|
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 |
Pre-Installation Inspection
Prior to the ducting being installed the following should be checked.
Ref | Inspection/Task |
---|---|
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. |
Maintenance/Access
Ref | Inspection/Task |
---|---|
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. |
Pre-Commissioning Inspection
Once the ducting has been installed and prior to the functional testing and commissioning phase taking place the following will be checked.
General
Ref | Inspection/Task |
---|---|
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...
We have also recently formatted this checklist to [MS Excel] and included it as a Bonus for FREE.
So get an MS Word & MS Excel for the same price.
Flexible Ductwork
Ref | Inspection/Task |
---|---|
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
Ref | Inspection/Task |
---|---|
1 | Attenuators, where installed, are clean and free from damage. |
Grilles and Terminal Diffusers
Ref | Inspection/Task |
---|---|
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. |
Documentation
Ref | Inspection/Task |
---|---|
1 | All drawings have been updated to reflect any changes made. |
Ventilation Ductwork Pre-Commissioning Checklist [PDF]
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