Contractor shall utilize the existing service openings already installed in the HVAC

 Contractor shall utilize the existing service openings already installed in the HVAC
system where possible.
2. Other openings shall be created where needed and they must be created so they
can be sealed in accordance with industry codes and standards.
3. Closures must not significantly hinder, restrict, or alter the airflow within the
system.
4. Closures must be properly insulated to prevent heat loss/gain or condensation on
surfaces within the system.
5. Openings must not compromise the structural integrity of the system.
6. Construction techniques used in the creation of openings should conform to
requirements of applicable building and fire codes, and applicable NFPA,
SMACNA and industry standards.
7. Cutting service openings into flexible duct is not permitted. Flexible duct shall be
disconnected at the ends as needed for proper cleaning and inspection.