Site Evaluation

Before the initiation of the project, a walk-through of the facility will be performed.  A walk-through establishes a specific, coordinated plan, which will detail how each area of the building, will be protected during the various phases of your project.

A Site Evaluation will address the following:

• Occupant safety and protection.
• Building safety and security policies.
• Containment strategies for debris removal.
• Protection of office furnishings.
• Specific and unique building-related issues.

Protective Covering:

Protective coverings such as drop cloths (to cover electronic equipment), and plastic sheeting are placed in areas where work is to performed before each shift and removed after each shift.  All occupied spaces will be left in a clean and ready to occupy condition.

Service Openings:

Ductworks will utilize any existing service openings already installed in the HVAC system where possible. Other new service openings will be installed where necessary to facilitate inspection and cleaning. New service openings will be created and installed according to standards and codes. All metal ducting service opening plates will be sealed with a SMACNA approved sealant to prevent air loss.

Ceiling Sections:

Ductworks may remove and reinstall ceiling sections to gain access to the HVAC system during the cleaning process.

Supply and return vent diffusers:

Areas cleaned include, Supply diffusers, Return grills, Dampers, Diffuser Boots.

The Supply & Return diffusers are located, and then removed.  They are then washed and staged to dry.

Return Ducting:

Areas cleaned include, Insulated and Uninsulated duct interiors, Fiber Board ducting, Flexible ducting, Louvers, Dampers and Turning Vanes.

The first area to be cleaned is the outside air intake and return ducting.  By cleaning these sections first, dirt and debris are eliminated from re-entering the air handler unit and supply ducting.  Any duct mounted volume or zone dampers are marked to their current setting.  Controlled containment practices and zoning methods are then strategically placed to ensure debris is not dispersed outside of the HVAC system during the cleaning process.  Each duct zone is drawn into negative pressure through the use of HEPA filtered vacuum collectors.  Using pneumatic and electric agitators, the dirt and debris is removed from the internal surface of the duct, and is drawn into the negative air stream where it is captured in the HEPA filtered vacuum collectors.  All volume and zone dampers are then returned to there original settings.

Air Handler Unit & Coils:

Areas cleaned include Blowers, Fan Housings, Plenums, Blades or Vanes, Louvers, Shafts, Baffles, Dampers, Drive Assemblies and Coils

The second area to be cleaned is the air handler unit and coils.  All controls and motors will be protected with protective barriers prior to cleaning.  The fan blower and housing is cleaned and rinsed thoroughly.  Interior components of the plenum and cabinet are contact vacuumed or washed by hand.  Coils are hand vacuumed on both sides to remove any large debris that may be attached to them.  An alkaline base coil cleaner is then applied to the coil bank.  Alkaline cleaner foams on contact, and lifts any debris that is caught between the coil fins to the surface where it is vacuumed off.  A final rinse of the coils is performed to remove any remaining chemical or loose debris on the coils.

Supply Ducting:

Areas cleaned include, Insulated and Uninsulated duct interiors, Fiber Board ducting, Flexible ducting, Dampers and Turning Vanes, VAV boxes, CV boxes.

The third area to be cleaned is the supply ducting. Any duct mounted volume or zone dampers are marked to their current setting. Controlled containment practices and zoning methods are then strategically placed to ensure that debris is not dispersed outsite of the HVAC system during the cleaning process. Each zone is drawn into negative pressure through the use of HEPA filtered vacuum collectors. Using pneumatic and electric agitators, the dirt and debris is removed from the internal surface of the duct, and is drawn into the negative air stream where it is captured in the HEPA filtered vacuum collectors. Any dampers, turning vanes or screens associated with the supply will be contact vacuumed or power washed. All volume dampers are then returned to their original settings.

Daily Progress Reports

Each day a Daily Progress Report will be filled out by the foreman and turn into the Operations Manager.  This report will detail work completed, problems, work to be completed for the next shift and expected completion of your project.  This information will be available upon your request.

Post project reporting:

Upon completion of the project, Ductworks provides the following to the owner or designated representative:

• Project completion date.
• Success of the cleaning project, verified through visual inspection and/or before and after photos.
• Any system deficiencies that were noticed.
• Areas of the system found to be damaged and/or in need of repair.
• Recommendations to improve the efficiency of the system or the indoor air quality.
• Address any questions or concerns.