Specifications include, but are not limited to: General Specifications for Cleaning a. As necessary, furnishings and equipment will be protected with plastic tarps where work is being performed. b. Upon completion of cleaning, every interior surface will have been cleaned to a point where it is visibly free of accumulated debris and dust. c. The work while in progress will be subject to random unannounced inspections by a representative of the District. As many inspections may be performed as desired to confirm and ensure that the work is being done according to these specifications. d. Any mechanical problems discovered during the course of cleaning will be reported in writing to the District representative. e. After the project has been completed, the Contractor will submit a post-project report outlining the scope of work, and include photographic documentation of the work that was performed. Contractor will be required to submit before and after pictures of each area cleaned. Cleaning of Air Handlers a. All interior surfaces shall be thoroughly brushed and vacuumed clean. As practical, all nonporous surfaces shall be washed with a paint-safe mild detergent solution. b. The interior coils will be coated with coil cleaner solution and then pressure washed from both sides. Cleaning shall be repeated until blockages are eliminated and rinse water appears clean. c. The condensate pan shall be brushed and/or pressure washed clean of loose debris. Condensate drains shall be inspected and, if necessary, cleaned as possible. d. The supply blowers and housing shall be scraped and wire brushed to remove any debris. They will then be cleaned with a mild, paint-safe detergent or degreaser and pressure washed. Precautions shall be taken to ensure no detergent or degreaser enters bearings. e. The internal components of the air handlers shall be sanitized using “Oxine”, an EPA registered biocide. f. All interior dampers, screens, filter racks, etc., shall be cleaned using a stiff bristled brush or wire brush and vacuuming; then washed with a paint-safe detergent solution and water, as practical. g. Remove any wet or severely deteriorated fiberglass liners from the air handlers, and replace with new fiberglass of the same thickness. Cover all fiberglass liners in the air handlers (new and existing) with a later of Reflectix non-fiberglass liner. All new liner will be firmly secured with welded pins, adhesive and duct sealer. All new insulation must be guaranteed for a minimum of five years. h. Brush and vacuum clean the outside air screens, louvers and dampers. i. New filters can be installed if provide by the owner at the time of cleaning. Cleaning of Ducts a. All return and supply registers and diffusers shall be removed, washed with a mild paint-safe detergent solution, and replaced. b. Access points shall be cut into the rigid metal ducts as necessary to completely access the interior for cleaning. c. Flexible ducts shall be disconnected at joints, registers, etc., for cleaning. Longer duct lengths shall be cut at intervals to allow a thorough cleaning of the interior...
