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Harding Lawson Associates Section 15010-1.7 - Temporary Heating requires that if the permanent HVAC system is used for temporary heating of the facility during construction that the coils are pressure cleaned and the ductwork is vacuumed prior to occupancy. Section 15010-3.9 - Cleaning requires that exposed portions of equipment be cleaned upon completion. To comply with the intent of this credit it is suggested that the contractor be required to do the following. Other strategies that are consistent with the intent of the credit can also be considered. Estimate the cost of completing the following tasks or other another strategy that is consistent with the intent of the credit: 1. Develop an IAQ Management Plan for the construction process (add to section 01520, Environmental Practices). 2. Protect the ventilation system components during construction or clean them after completion of construction including the inside air contact surfaces. 3. Implement construction sequencing to reduce adsorption of VOCs by materials that act as "sinks." Sequence construction as follows: The application of wet and/or odor- emitting materials such as paints, sealants, coatings, etc. shall be made before dry/sink materials such as ceiling tiles, carpets, fabric-covered furnishings, etc. are installed. 4. Include construction-related IAQ procedures in the pre-construction and construction progress meeting agendas. Credit 1: Advanced Construction IAQ Management Plan Reduce construction contaminants in the building prior to occupancy (e.g. dust, particulates, water infiltration-related contamination, VOC's). Provide a minimum of 85% filtration, as determined by ASHRAE Standard 52.1 - 1992, on return-side system components during construction and replace all filtration media prior to occupancy if the return air side of a system is used during construction. • The following is a suggested strategy to comply with the intent of this credit. Other strategies that comply with the intent of the credit can also be considered. Estimate the cost of completing the following tasks or other another strategy that is consistent with the intent of the credit: Comply with the intent of the Basic Construction IAQ Management Plan Reduce construction contaminants in the building prior to occupancy. Make temporary ventilation a requirement in the General Conditions of the construction contract. Check for possible damage to the system from high humidity. Use 100% outside air ventilation (depending on climate) with air exhausted directly to the outside during installation of finishes and other VOC emitting materials. Check that the maximum outside air ventilation rate does not exceed heating, cooling, and humidity levels. Provide a minimum of 85% filtration, if the return air side of an HVAC system is used during construction. Separate filtration media should be specified on any permanent equipment during construction. Just prior to occupancy, new clean media should be installed. All coils, air filters, and fans should be clean before testing and balancing is done and especially before baseline air quality tests are conducted. Credit 4: Design of Chemical Storage Areas Design all chemical storage and mixing areas for housekeeping products (both central storage facilities and janitors closets) to allow for secure product storage in spaces that have water in the chemical concentrate mixing areas, with drains plumbed for the appropriate disposal of liquid waste, separate outside venting, and negative pressure. <<a)