Issue link: https://hi.iaq.net/i/630729
20 Section 4 ■ Description of HVAC system design and operation; set of operating instructions, manuals ■ Set of maintenance and calibration records ■ Inventory of locations where occupancy, equipment, or building have changed ■ Inventory of complaint locations ■ List of responsible staff and/or contractors; evidence of training; job descriptions ■ Identification of areas where positive or negative pressures should be maintained (sketch plan) ■ Record of locations that need monitoring or correction ■ Inventory of HVAC system components needing repair, adjustment or replacement ■ Record of control settings and operating schedules ■ Completed plan showing airflow directions or pressure differen- tials in significant areas ■ Inventory of significant pollutant sources and their locations ■ Set of Material Safety Data Sheets for supplies and hazardous substances that are stored or used in the building ■ Zone/Room Record FIGURE 4-1: Developing an IAQ Profile START Yes PRODUCTS 1. Collect and Review Existing Records Review design, construction and operating documents Check HVAC mainte- nance records against equipment lists Review complaint record 2. Conduct a Walkthrough Inspection of the Building Talk with staff and other occupants Look for IAQ problem 3. Collect Detailed Information HVAC system condition and operation Pollutant pathways Pollutant sources Occupants Develop an IAQ management plan (see Section 5) Go to Section 6 Did you find any IAQ problems ? SKILLS REQUIRED TO CREATE AN IAQ PROFILE Many of the resources necessary for the IAQ profile should already be on hand within your organization. Additional information can be collected by the staff person or persons who have the following skills: ■ basic understanding of HVAC system operating principles ■ ability to read architectural and mechani- cal plans and understandmanufacturer's catalog data on equipment ■ ability to identify items of office equipment ■ ability to work cooperatively with building occupants and gather informa- tion about space usage ■ ability to collect information about HVAC system operation, equipment condition, and maintenance schedules ■ authority to collect information from subcontractors about work schedules and materials used (particularly cleaning and pest control activities) ■ ability to understand the practical meaning of the information contained in the Material Safety Data Sheets (MSDSs) If direct measurements are to be included in the IAQ profile, the staff should have the tools and training to make the following measurements (see Appendix A for guidance on air sampling): ■ air volumes at supply diffusers and exhaust grilles ■ CO 2 concentration ■ temperature ■ relative humidity ■ pressure differentials ■ assessment of thermal and ventilation load requirements Section 8 provides guidance on hiring IAQ professionals if you prefer to use outside expertise to develop your IAQ profile. ▼ ▼ ▼ ▼ ▼ No ▼