NADCA Commercial Checklist
This checklist is designed to help the commercial/industrial community understand NADCA’s recommendations regarding the HVAC system cleaning process. NADCA advises reviewing the checklist items below BEFORE hiring an air duct cleaning company.
Why Hire a NADCA Member?
NADCA sets the industry standard for HVAC system cleaning and when done correctly, HVAC cleaning can be very beneficial for our facility. NADCA’s dedication to quality promotes a higher standard of performance for all of its members—which can help give customers peace of mind.
IN ORDER TO BECOME A NADCA MEMBER, A COMPANY MUST:
- Have at least one NADCA certified Air Systems Cleaning Specialist (ASCS) on staff.
- Maintain general liability insurance.
- Agree to clean according to ACR, the NADCA Standard.
- Comply with NADCA’s Code of Ethics.
In addition, all ASCS certified individuals must acquire continuing education credits to maintain certification.
Questions/Discussion Topics for Commercial/Industrial HVAC System Cleaning Projects
Pre-Cleaning Checklist
Yes No
1 Qualification of the HVAC System Cleaning Contractor
The HVAC system cleaning contractor will provide the following:
- Proof of NADCA membership and ASCS certification
- Proof of insurance
- Proof of proper license(s) as applicable
- A written proposal
2 Standards/Guidelines Used by the HVAC System Cleaning Contractor
The HVAC system cleaning contractor plans to follow:
- NADCA General Specifications for Cleaning of Commercial HVAC Systems
- ACR, the NADCA Standard for Assessment, Cleaning & Restoration of HVAC Systems
3 Documents Reviewed by the HVAC System Cleaning Contractor
The HVAC system cleaning contractor will:
- Review project drawings
- Review project specifications
4 Inspections (See ACR, the NADCA Standard – Section 1)
The HVAC system cleaning contractor will:
- Conduct an assessment prior to performing the work
5 Work Plans (See ACR, the NADCA Standard – Section 2)
The HVAC system cleaning contractor will:
- Provide a written work plan
- Provide a scope of work within the work plan that identifies what components will be cleaned and/or restored
- Outline any special requirements needed for cleaning (ie. power, water, lifts)
6 Engineering Controls (See ACR, the NADCA Standard – Section 3)
The HVAC system cleaning contractor will:
- Define engineering controls
- Use vacuum collection equipment utilizing HEPA filtration with 99.97% collection efficiency at 0.3 micron article size, if exhausting within the building envelope
7 Cleaning & Restoration Procedures (See ACR, the NADCA Standard – Section 4)
The HVAC system cleaning contractor will:
- Maintain the HVAC system at appropriate negative pressure differential
- Outline the cleaning methods to be used
- Clean specified components in accordance with the NADCA General Specifications
- Identify any chemical products that may be used and will provide Safety Data Sheets (SDS)
- Report pre-existing damage to HVAC components found during cleaning
8 Cleanliness Verification (See ACR, the NADCA Standard – Section 5)
The HVAC system cleaning contractor will:
- Perform cleanliness verification as outlined in the scope of work
- Identify post-project documentation