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DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> Orange County Emergency Services Building Construction Documents <br /> B. The cleanliness inspection shall be conducted without negatively impacting the indoor environment <br /> through excessive disruption of settled dust, microbial amplification or other debris. In cases where <br /> contamination is suspected, and/or in sensitive environments where even small amounts of <br /> contaminant may be of concern, environmental engineering control measures should be <br /> implemented. <br /> 1. Damaged system components found during the inspection shall be documented and brought <br /> to the attention of the owner. <br /> C. Site Evaluation and Preparations: Contractor shall conduct a site evaluation, and establish a <br /> specific, coordinated plan which details how each area of the building will be protected during the <br /> various phases of the project. <br /> D. Inspector Qualifications: Qualified personnel should perform the HVAC cleanliness inspection to <br /> determine the need for cleaning. At minimum, such personnel should have an understanding of <br /> HVAC system design, and experience in utilizing accepted indoor environmental sampling <br /> practices, current industry HVAC cleaning procedures, and applicable industry standards. <br /> E. When cleaning work might adversely affect life safety systems, including fire and smoke detection, <br /> alarm, and control, coordinate scheduling and testing and inspection procedures with authorities <br /> having jurisdiction. <br /> F. Ensure that electrical components that might be adversely affected by cleaning are de-energized, <br /> locked out, and protected prior to beginning work. <br /> G. Air-Volume Control Devices: Mark the original position of dampers and other air-directional <br /> mechanical devices inside the HVAC system prior to starting cleaning. <br /> H. Access to Concealed Spaces: Use existing service openings and make additional service <br /> openings as required to accomplish cleaning and inspection. Other openings shall be created <br /> where needed and they must be created so they can be sealed in accordance with industry codes <br /> and standards. <br /> 1. Do not cut openings in non-HVAC components without obtaining the prior approval of Owner. <br /> 2. Make new openings in HVAC components in accordance with NADCA Standard 05; do not <br /> compromise the structural integrity of the system. <br /> 3. Do not cut service openings into flexible duct; disconnect at ends for cleaning and inspection. <br /> 4. Closures must not significantly hinder, restrict, or alter the airflow within the system. <br /> 5. Closures must be properly insulated to prevent heat loss/gain or condensation on surfaces <br /> within the system. <br /> 6. Construction techniques used in the creation of openings should conform to requirements of <br /> applicable building and fire codes, and applicable NFPA, SMACNA and NADCA Standards. <br /> 7. Rigid fiber glass duct systems shall be resealed in accordance with NAIMA recommended <br /> practices. Only closure techniques that comply with UL Standard 181 or UL Standard 181 a <br /> are suitable for fiber glass duct system closures. <br /> 8. All service openings capable of being re-opened for future inspection or remediation shall be <br /> clearly marked and shall have their location reported to the owner in project report documents. <br /> I. Ceiling Tile: Lay-in ceiling tile may be removed to gain access to HVAC systems during the <br /> cleaning process; protect tile from damage and reinstall upon completion; replace damaged tile. <br /> 3.04 CLEANING <br /> A. Containment: Debris removed during cleaning shall be collected and precautions must be taken to <br /> ensure that Debris is not otherwise dispersed outside the HVAC system during the cleaning <br /> process. <br /> B. Particulate Collection: Where the Particulate Collection Equipment is exhausting inside the <br /> building, HEPA filtration with 99.97% collection efficiency for 0.3-micron size (or greater) particles <br /> shall be used. When the Particulate Collection Equipment is exhausting outside the building, <br /> Mechanical Cleaning operations shall be undertaken only with Particulate Collection Equipment in <br /> place, including adequate filtration to contain Debris removed from the HVAC system. When the <br /> Particulate Collection Equipment is exhausting outside the building, precautions shall be taken to <br /> locate the equipment down wind and away from all air intakes and other points of entry into the <br /> building. <br /> PDC Project 18102 HVAC AIR-DISTRIBUTION 23 01 30.51 - 3 <br /> 12/17/2018 SYSTEM CLEANING <br />