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ES+H Multifamily Building Upgrades_508c_02 09 2016

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Page 48 of 100

Energy Savings Plus Health | INDOOR AIR QUALITY GUIDELINES FOR MULTIFAMILY BUILDING UPGRADES 49 PRIORITY ISSUE 17.0 HVAC EQUIPMENT (continued) ASSESSMENT PROTOCOLS (AP) MINIMUM ACTIONS (MA) EXPANDED ACTIONS (EA) MA 17.3 Ensure There is Adequate Air Filtration For HVAC equipment that serves dwelling units, ensure new HVAC systems have air filtration with a minimum MERV 6 rating, located upstream of thermal conditioning equipment, as stated in ASHRAE Standard 62.2-2013. If nonresidential spaces are included in the scope of work, ensure new HVAC systems have air filtration with a minimum MERV 8 rating, located upstream of all cooling coils or other devices with wetted surfaces, as stated in ASHRAE Standard 62.1-2013. For existing HVAC systems, check with the manufacturers to determine whether filters with these MERV ratings can be accommodated by the equipment and, if not, install filters with the highest MERV rating that can be accommodated. There shall be no air bypass around filters, and no air cleaners designed to intentionally produce ozone shall be installed. MA 17.4 Control Bacterial Growth in HVAC Systems and Mechanical Equipment Follow ASHRAE Standard 188-2015 or OSHA Technical Manual, Section III: Chapter 7 Legionnaires' Disease to protect against bacterial growth in building water systems (e.g., cooling towers, evaporative condensers, humidifiers, hot and cold water systems, fire sprinkler systems, ice machines, eyewash stations, safety showers). MA 17.5 Train Building Staff on HVAC Operations and Maintenance After the upgrade, building staff should be trained on the operations and maintenance of the HVAC systems including the outdoor air ventilation strategy (see Priority Issues 18.0 through 20.0, as applicable); temperature, humidity and other HVAC controls; measuring and adjusting airflows; preventative maintenance; and troubleshooting problems. The training should include any needed seasonal adjustments, air filter change-out schedules, control system set point adjustments, and other maintenance and operational requirements for mechanical equipment. An operations and maintenance manual should be provided to the building staff. Discuss with the building owner or property manager the need to educate occupants about the basic operation of ventilation, heating and cooling systems in dwelling units. This should include any maintenance (e.g., air filter change-out) and adjustments that are the occupants' responsibility. References for Priority Issue 17.0 HVAC Equipment: ACCA: Manual J Residential Load Calculation ACCA: Manual N Commercial Load Calculation ACCA: Manual S Residential Equipment Selection ACCA: ANSI/ACCA Standard 5 QI-2015. HVAC Quality Installation Specification ACCA: ANSI/ACCA Standard 6 QR-2015, Restoring the Cleanliness of HVAC Systems ACCA: ANSI/ACCA Standard 9 QIvp-2011, HVAC Quality Installation Verification Protocols American Technical Publishers and the International Union of Operating Engineers: Indoor Air Quality Solutions for Stationary Engineers ASHRAE/ACCA Standard 180-2012, Standard Practice for Inspection and Maintenance of Commercial Building HVAC Systems ASHRAE/ACCA Standard 183-2007 (RA 2014), Peak Cooling and Heating Load Calculations in Buildings Except Low-Rise Residential Buildings ASHRAE Standard 188-2015, Legionellosis: Risk Management for Building Water Systems ASHRAE: Handbook – Fundamentals ASHRAE: Handbook – HVAC Systems and Equipment ASHRAE: Load Calculation Applications Manual ASHRAE Standard 62.1-2013, Ventilation for Acceptable Indoor Air Quality, Section 5.8 ASHRAE Standard 62.2-2013: Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings Section 6.7 DOE: Standard Work Specifications for Multi-Family Home Energy Upgrades, Sections 2.0702.2 and 2.0702.4, and Section 5: Heating and Cooling EPA: Residential Air Cleaners (Second Edition) A Summary of Available Information OSHA: OSHA Technical Manual, Section III: Chapter 7 Legionnaires' Disease Appendix B: Property Management and Occupant Education

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