Specifications include, but are not limited to: Provide all tools, materials, equipment, insurance, chemicals and incidentals to clean, decontaminate and treat existing HVAC ductwork systems in the Miller Science Building on the campus of Stephen F. Austin State University in accordance with the Specifications, and Terms and Conditions provided herein. The laboratory exhausts systems and fume hood supply and exhaust systems are not included in the scope of work. The contractor must be a TACL (Texas Air Conditioning License) licensed firm regularly engaged in air conveyance system cleaning for a minimum of five (5) years. The Contractor must include references of at least five (5) buildings with names, addresses, telephone numbers and building representative names where similar air conveyance system cleaning and sanitizing have been performed by the Contractor. The cleaning and sanitizing work shall include supply air duct systems, return air duct systems, double duct terminal boxes, air outlets, air handling units and related components. Mechanical room/air handling units shall include the following cleaning and sanitizing. A. Clean all interior and exterior of housing surfaces B. Clean coils, drain pans and frames using pressurized washers and EPA registered cleaning agents. C. Clean all fans and related components. D. Remove or treat all visible biological contaminates with EPA registered Biocide E. Mechanical room and area surrounding the units shall be vacuumed and cleaned with an EPA registered degreaser cleaning agent Supply and return ductwork shall include the following cleaning and sanitizing: 1. Fiberglass lined ductwork: a. Source removal process shall be used to clean the ductwork debris. Dust and particulates shall be removed by physical contact with a soft vacuum brush attached to a HEPA vacuum system in conjunction with a Steamatic Negative Air Machine or equal air wash device. b. Treatment of the ductwork shall include Biocide treatment before and after the removal process. c. Furnish and install access doors as needed to provide entry points for source removal, visual inspection, sights and treatment of biological contaminants. All access doors shall be constructed and installed as recommended by SMACNA. d. Where there is a common ceiling return and no ductwork, this area will be cleaned and treated as if it were duct return. 2. Equipment to be utilized shall be as follows, or equal: a. HEPA Filtered negative air vacuum b. Pneumatic duct cleaning heads c. HEPA Portable vacuums d. Max Vac (ITPA vacuum) e. WS Compressed Spray System f. Robot Camera with video documentation if required Contractor shall provide worker safety guidelines and precautionary procedures for occupant safety. Contractor shall complete the work within NIOSH and OSHA guidelines. As a minimum of Quality Assurance, the following shall be provided. All systems shall be sampled and tested for sanitization. 1. Contractor's Project Manager shall inspect the air conveyance system before, during and upon completion of decontamination with a robotic camera and Endoscope or equal devices. 2. The Contractor shall conduct a walk-through observation with the Owner at any time when so requested by the Owner. 3. Ductwork cleaning, decontamination and treatment shall comply with NADCA Standard 1992-01. The Contractor shall test Fifteen (15) different locations and results shall be certified in writing by the Contractor and delivered to the Owner. The exact location of each test shall be as instructed by the Owner. Membership in NADCA is NOT required since Texas requires a TACL licensed contractor. All re-arrangement of furniture, moving of furniture, protection and clean up within the existing building shall be included in the work. All work will be accomplished within the schedule of building availability. Supply Registers/Return Air Grilles: 1. All supply registers/return air grilles will be removed, hand cleaned, sanitized and replaced. If either is affixed to structure, then it will be cleaned in placed. 2. Area around supply register/return air grilles will be vacuumed. 3. All supply registers will be covered with a poly filter material during the treatment process. This will be removed after these processes have been completed.
