A. This project consists of providing the necessary labor, material, equipment, and supervision to complete the cleaning, rehabilitation, and testing of the ventilation systems in accordance with the requirements as specified herein. Systems to be covered under this contract will require the following: 1. Clean and adjust ventilation systems and air handling equipment including air handling units, supply fans, furnaces, supply and return air systems, supply and return air dampers, coils, mixed air plenums, and plenum walls. 2. Clean exhaust air registers and grilles and adjust exhaust and relief air systems. Exhaust and relief air ducts do not require cleaning if there is no recirculation to the building ventilation systems. Ceiling exhaust fans to be cleaned by removing ceiling grille and cleaning fan and grille without removal of fan unit. 3. Clean all acoustical lining in supply, return and transfer air ducts. 4. Clean outside air intake louvers, hoods, plenums and ducts. Repair as needed. 5. Clean all sheet metal outside air and return air ducts in crawl spaces. (Fiberglass ducts do not require cleaning.) 6. Reseal all outside air and return air ducts and plenums located in crawl spaces (applies to sheet metal ductwork only). 7. Clean and adjust supply and return air registers, grilles and diffusers. 8. Clean all unit heaters throughout the building. 9. Clean all cabinet unit heaters throughout the building. 10. Clean all baseboard fin tubes and enclosures throughout the office area. 11. Clean all convectors throughout the building. 12. Cut accesses in duct work where needed to properly clean. 13. Plenums and branch ducts. Patch or plug upon completion. 14. Clean and dust adjacent surfaces. B. Contractor shall field verify accordingly to determine actual work required. Consider minor revisions at no additional cost to the Owner. For all work to be undertaken during the term of this contract, the Owner will request a site visit with the project manager and Contractor to go over the scope of work of each individual school site. A cost estimate will be provided to the ASD project manager by the Contractor using the unit prices bid on the bid form, and reviewed as to estimated footage to be cleaned and additional work to be accomplished. A purchase order will then be issued to the Contractor for the approved not to exceed amount. The purchase order (contract task order) shall be considered the Contractor's notice to proceed. C. Contractor shall contact the Project Manager upon completion of each task order.
