The nurse station will include Anteroom/Protective Equipment Room. Review control sequences to verify systems are operating according to this guidance to maintain required ventilation, temperature and humidity conditions to occupied areas.Address or clear existing alarms from Building Automation Systems/Building Management Systems to allow for recognition of new alarms that may impact building indoor air quality and consider alarm hierarchy.Review control sequences to verify systems are operating according to this guidance to maintain required ventilation, temperature and humidity conditions to occupied areas. Review design guidance for potential system modifications to comply with this guidance. This reference provides recommendations for policies, general operations, response protocols, communications, etc. Verify filters are installed correctly. Disable Demand-Controlled Ventilation (DCV) systems using Carbon Dioxide (CO2) sensors where feasible: Either disable control sequence or adjust setpoints to be at or near ambient outdoor CO2 levels (typically between 400 and 500 ppm). Compensate for loss of capacity in winter with portable plug in elec. The COVID-19 pandemic makes this mission even more imperative. Please refer to the Centers for Disease Control and Prevention (CDC) website for the most recent updates related to COVID-19 and schools: ... ASHRAE has developed proactive guidance Exitto help address COVID-19 concerns with respect to the operation and maintenance of heating, ventilating and air-conditioning systems. INTRODUCTION . Verify proper separation between outdoor air intakes and exhaust discharge outlets to prevent/limit re-entrainment of potentially contaminated exhaust air (generally minimum of 10-foot separation - comply with local code requirements). 2020 Coronavirus advice. Refer to guidance on ICRA for renovations and creating a CX plan and well as phasing the construction. Check drain pans for cleanliness and proper slope. Overall effectiveness of reducing particle concentrations depends on several factors: Location of the filter in the HVAC system or room air cleaner. All restrooms should be thoroughly cleaned. This guidance should be applied to each unique climate zone, unique school building and HVAC system. Some filters have a static electrical charge applied to the media to increase particle removal. ASHRAE said in April that, ... President-elect Joe Biden proposed new aid for schools as part of a broader COVID-19 relief plan, which will require congressional approval. Consider upper air UV-C treatment for select spaces. This guidance has been formulated to help designers and facility managers to retrofit and plan for the improvement of indoor air quality and to slow the transmission of virus via the HVAC systems. For systems with Steam Boilers, develop a schedule that provides minimum supervision on-site. United States CDC Readiness and Planning Tool to Prevent the Spread of COVID-19 in K-12 Schools. Perform chemical testing of system water. As of April 15, 2020, the following statement from the ASHRAE Epidemic Task Force was posted on their website: On the recommendation of the ASHRAE Epidemic Task Force, ASHRAE leadership has approved the following two statements regarding transmission of SARS-CoV-2 and the operation of HVAC systems during the COVID-19 pandemic: The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has developed proactive guidance to help address coronavirus disease 2019 (COVID-19) concerns with respect to the operation and maintenance of heating, ventilating and air-conditioning systems. Check piping for leaks. Check unit ventilators for proper amounts of OA and operation. The underlying effort of the designer should be to increase outside air to the spaces, treat return air and or supply air to spaces via mechanical filtration or treating the air and maintain indoor comfort as defined by temperature and relative humidity. For systems using natural gas: Check gas pressure, gas valve operation, and combustion fan operation. This reference provides recommendations for policies, general operations, response protocols, communications, etc. This information describes how the HVAC systems should be operating to help minimize the chance of spreading SARS-Cov-2 and how to practically check/verify that operation. Professionals who operate school, office, and commercial buildings should consult guidance by ASHRAE (formerly known as American Society of Heating, Refrigerating and Air-Conditioning Engineers), and other professional and government organizations for information on ventilation and air filtration to help reduce risks from the virus that causes COVID-19. Determine if there are one or two filter banks. Reopening Schools Safely and Equitably Amidst the COVID-19 Pandemic: School Facilities are Frontline Defense in Reducing Risk Jeff Vincent, Center for Cities + Schools, UC Berkeley As the novel coronavirus, SARS-CoV-2, rapidly spread across the globe in Spring 2020, one of the most widely implemented risk reduction measures utilized was to physically close all school buildings. Check variable frequency drive for proper operation. Check for proper evaporator and condenser fluid flow and for fluid leaks. Independent industrial hygienists tested every school’s indoor air quality to ensure it meets the American Society of Heating, Refrigerating and Air-Conditioning Engineers’s (ASHRAE) COVID-19 guidelines for school buildings (Standard 55 and 62.1) The indoor air quality report looked at the following for values: Verify control valves operate properly. SARS coronavirus (SARS-CoV) was a virus identified in 2003. This page is updated as new information becomes available. Verify control dampers operate properly. Determine if the speed increase exceeds the maximum motor power. Check variable frequency drive for proper operation. Changes to building operations, including the operation of heating, ventilating, and air-conditioning [HVAC] systems, can reduce airborne exposures.”. During the week prior to occupancy perform Checklist No. Review outdoor airflow rates compared to the most current version of ASHRAE Standard 62.1 or current state-adopted code requirements. Electric heat elements must have sufficient airflow to operate. Nurse office suite design should follow health care facilities design practices as described in standards such as ASHRAE Standard 170 and other applicable guidelines and design information. Check and fix economizer dampers and controls and maximize the economizer operation when possible (favorable outdoor conditions and outdoor air pollution). Check variable-frequency drive for proper operation. Guidance from the Centers for Disease Control and Prevention (CDC): Numerous and various locations in classrooms, washrooms, gyms, and school libraries need to be sampled to determine which microbes inhabit our schools and where and at what contamination levels. Determine if the equipment served from a Variable Frequency Drive. If filter racks can accept a minimum MERV 13 filter but were not part of the original design, the following analysis can be completed by internal staff or a consulting engineer: Provide Information previously gathered in the Gathering Stage to individual completing additional analysis. HVAC Recommendations from ASHRAE: CORONAVIRUS (COVID-19) RESPONSE RESOURCES FROM ASHRAE. Make a list by piece of equipment. May 28, 2020. Guidance from cognizant authorities should be followed to the extent possible. Check safety devices per manufacturer's recommendations. Viruses, and the diseases they cause, often have different names. Replace and Upgrade Rack if possible, to accept a filter with a higher MERV rating. Consider having airflows and system capacities reviewed by design professionals to determine if additional ventilation can be provided without adversely impacting equipment performance and building Indoor Environmental Quality (IEQ). Additional supplementary heaters or cooling devices may be required. Check for proper fluid flow and for fluid leaks. Check the control system and devices for evidence of improper operation. Share pertinent information between all appropriate groups: Maintenance, Energy, Environmental Health & Safety, Building Managers, Administration, etc. Treat as PE anteroom and combination AII/PE. Posted by mreynau on Apr. WHO announced “COVID-19” as the name of this new disease on February 11, 2020, following guidelines previously developed with the World Organization for Animal Health (OIE) and the Food and Agriculture Organization of the United Nations (FAO). Winter Nurse Station design guidelines 72 F/50-55% RH, Summer Nurse Station design guidelines 72 F/50%-60% RH, Design for a maximum of 10 Air Changes per Hour (ACH), can operate at 6 ACH, Two filter banks, MERV 7 and HEPA (MERV 14 for existing HVAC that is unable to support HEPA), Isolation Room and Nurse office will be Negative Pressure (- 0.015" to – 0.05" W.C), Protective Room will be Positive Pressure ((+ 0.015" to + 0.05" W.C). Heaters or higher discharge temps. MERV ranges from 1 to 16; higher MERV = higher efficiency, MERV ≥13 (or ISO equivalent) are efficient at capturing airborne viruses. Read More Code Advisory Committee Call for Application. PE rooms with respective to adjacent rooms should be under positive pressure. Report/track incident through defined policies. Document any unusual observations other than those that can be recorded by control systems. Cooling Towers and Evaporative-Cooled Devices Monthly. Check variable-frequency drives for proper operation. Develop maintenance policies for new/added equipment such as local air cleaners, humidifiers, additional filtration in mechanical equipment, etc. With more than 50,000 members from over 132 nations, ASHRAE is a diverse organization dedicated to advancing the arts and sciences of heating, ventilation, air conditioning and refrigeration to serve humanity and promote a sustainable world. See Filtration Upgrades. As yet another COVID-19 mitigation strategy, several Lehigh Valley school districts have purchased what the CDC still considers an "emerging technology" to purify their air: bipolar ionization units. For new installations, designer should designate a "Purge/Flush" mode for operations to minimize the virus transmission via HVAC systems. ASHRAE standards for filtration ask schools to upgrade their heating, ventilation and AC systems to MERV 13 filters, which are more likely to catch particles that could carry coronavirus. Recommend locations of nurse's office HVAC on an exterior wall. For that reason, ASHRAE (American Society … Domestic hot water systems should be flushed with all fixtures on a branch of piping opened simultaneously for a minimum period of 15 minutes – preferred approach is to have all building fixtures open at same time if possible – if not, care should be taken to ensure flow rate is adequate to flush piping mains and branch lines. But, with about 5,000 schools in the province, that means that on average there will only be about $10,000 a school to improve ventilation and help prevent the transmission of COVID-19. Customer Name: _____ Date:_____ Building Name: _____ This checklist is intended for use by a licensed mechanical contractor to review theHVAC systems in K-12 schools in the State of Michigan. Record the Model or Serial number of the air handling equipment. Ver. Verify water treatment target levels are being maintained. Create reporting methodology for tracking and reporting of critical infections. With more than 50,000 members from over 132 nations, ASHRAE is a diverse organization dedicated to advancing the arts and sciences of heating, ventilation, air conditioning and refrigeration to serve humanity and promote a sustainable world. Top of Page Check the refrigerant system for evidence of leaks. Learn how to employ DSA services and find other resources that prepare public schools for re-opening. Establish physical barrier in waiting room for screening, Require face mask and hand sanitation from a sanitizer dispenser, Increase ventilation rate six ACH clean air, Create at least one isolation exam room in waiting area (can be temporary), Use laminate or solid surface casework to improve cleaning, Negative Pressure to 0.01 inches of water, Twelve air changes (HEPA recirculation allowed), All air exhausted to outdoors (exhaust grill above exam table), Provide minimum two isolation rooms (conduct risk assessment), Normal non-isolation nurses office can become iso-room, Include Biohazard waste storage in anteroom and iso-room for PPE, Verify space has one-pass air or maximum OA capable for lab operating requirements, Modify workstations to comply with social distancing, Install hand sanitizer dispenser in entryway, Verify all fume hoods and bio-safety cabinets are up-to-date on certification, Conduct smoke tests in all spaces to verify airflow patterns, Limit occupancy to maintain social distancing guidelines and avoid unnecessary occupants, Avoid use of locker rooms but if necessary Increase airflow in locker rooms and keep negative, Verify all locker room exhaust flows exceed ANSI/ASHRAE Standard 62.1, Consider reducing occupancy in rooms, suites and common areas, Install hand sanitizer dispenser in common areas, Verify exhaust air flow in all restrooms and laundries, Verify all outdoor air flows are well distributed (> 0.16 cfm/sf), Replace filters with MERV 13 or higher where ever possible, Refer to the Filtration and Disinfection Guidance, This guidance assumes no COVID-19 cases are housed, Limit occupancy to maintain social distancing guidelines, Replace all filters with MERV 13 or higher, Verify exhaust airflows in all toilets and locker rooms, Verify exhaust airflows from all concession stands, Provide additional outdoor air and/or HEPA filter units in rehearsal rooms and green rooms, Disable demand control ventilation control. If retrofits are not possible recommend temporary nurse's station trailers. DSA is committed to helping California public schools prepare to re-open under the Centers for Disease Control’s COVID-19 requirements. Consider impact to operation and equipment sizing associated with failure of energy recovery systems or filter loading. The ASHRAE COVID-19 Preparedness Resources webpage provides easily accessible resources from ASHRAE to building industry professionals. See ASHRAE and CDC for more information on air cleaning and filtration and other important engineering controls. Perform initial air flush of all spaces prior to occupants re-entering building: Mechanical systems should operate in occupied mode for minimum period of one week prior to students returning (may be completed at same time as teachers start returning to building) while assuring the outside air dampers are open. Check conductivity and other sensors for proper readings. Domestic cold-water systems should be flushed with all fixtures on a branch of piping opened simultaneously for a minimum period of five minutes – preferred approach is to have all building fixtures open at same time if possible – if not, care should be taken to ensure flow rate is adequate to flush piping mains and branch lines. COVID-19 School Readiness. Generally, particles with an aerodynamic diameter around 0.3 μm are most penetrating; efficiency increases above and below this particle size. Shaping Tomorrow's Built Environment Today, Officers, Directors, Councils, Committees, Staff, Science and Technology for the Built Environment, Instructor-Led Training Seminar and Short Courses, Self-Directed Learning / Group Learning Texts, 2021 Virtual Design and Construction Conference, 2021 ASHRAE Building Performance Analysis Conference, IAQ 2020: Indoor Environmental Quality Performance Approaches, Criteria for Annual Conference City Selection, Winter, Annual, & Virtual Conference Sponsorship Opportunities. 2: Startup Checklist for HVAC Systems Prior to Occupancy | Equipment and System Specific Checks and Verifications During the Academic Year | New/Modified Facility Design Recommendations | Designer Guidelines – General School | Nurses Office – General Requirements | Filtration Upgrades | Filtration Basics | Filtration Target Level | Information Gathering Stage | Data Analysis & Review | Implementation & Considerations | Operation of Occupied Facilities | Controlling Infection Outbreaks in School Facilities | Higher Education Facilities | Student Health Facilities | Laboratories | Athletic Facilities | Residence Facilities | Large Assembly. Filters (disinfected or not) can be bagged and disposed of in regular trash, or applicable local health and safety standards. It should be clearly stated and understood that adherence to this guidance does not eliminate the potential for airborne transmission of the virus and should not serve as a replacement for other steps such as social distancing, use of masks or other face coverings, cleaning and disinfection of surfaces, etc. Your chance to help prepare K-12 Schools for Reopening. Read More ASHRAE resources on COVID-19. Check the control system and devices for evidence of improper operation. | COVID-19 | Where Did SARS-CoV-2 Come From? Check all lavatories and sinks for correct operation and ensure soap dispensers are functional and adequate supply of soap is available to allow for proper handwashing. Infection Control Risk Assessment (ICRA) is to be performed for new construction and renovations of nurse facilities. Calculate the increase in filter pressure drop after installing the new MERV 13 filters. Verify control valves operate properly. 1: Checklist for Unoccupied Buildings, Checklist No. Lawrence J. Schoen argued in the ASHRAE Journal Newsletter of 24 March 2020 that, because of the WHO guidance: The COVID-19 virus spreads primarily through droplets of saliva or discharge from the nose when an infected person coughs or sneezes. 11/30/2020. Develop policies for use of drinking fountains/water coolers. For the complete ASHRAE Epidemic Task Force school reopening guide and other COVID-19 resources, visit ashrae.org/COVID-19. Information on these pages is provided as a service to the public. For retrofitting or replacing an existing AHU, increase outside air to maximum allowable per Air Handling Unit (AHU) without compromising indoor thermal comfort for learning environment (due to severe thermal outdoor air conditions) or space IAQ due to poor outdoor ambient conditions (pollution). Mr. Phoenix is also an ASHRAE Certified Building Energy Modeling Professional (BEMP), and a Certified Building Energy Assessment Professional (BEAP) and is an ASHRAE Distinguished Lecturer. ASHRAE’s COVID-19 Preparedness Resources are available as guidance to building owners, operators and engineers on how to best protect occupants from exposure to the virus, in particular in relation to airborne particles that might be circulated by HVAC systems.” This may lead to DX low suction pressures which causes faults in cooling or DX high pressure trips in heating with HP's. Inspect pumps and associated electrical components for proper operation. Consideration must be given to climate zone and building envelope to avoid mold growth or IAQ problems. United States CDC Considerations for Institutions of Higher Education. For the "Normal Mode" the HVAC system can be (supplementary) standard HVAC system (VRF +DOAS, Fan coils, WSHP/GSHP, DOAS etc) with current design practices (. This page is updated as new information becomes available. Viruses are named based on their genetic structure to facilitate the development of diagnostic tests, vaccines and medicines. Develop policies for staff and contractor PPE requirements for completing work at facilities that follow local authority. Check P-trap on drain pan. In VAV systems maximize the total supply air flow in each VAV terminal when the system is in full economizer mode. Follow design guidelines for location of OA intakes and exhaust air from exhaust fans. and Air-Conditioning Engineers (ASHRAE) Guidance for Building Operations During the COVID-19 Pandemic, and ASHRAE guidelines for schools and universities, which includes further information on ventilation recommendations for different types of buildings. ASHRAE Offers COVID-19 Building Readiness/Reopening Guidance. School Operations: Get Ready | Information on SARS-CoV-2: General Information on SARS-CoV-2 | Why Do Viruses and Diseases Have Different Names? For HVAC systems suspected to be contaminated with SARS-CoV-2, it is not necessary to suspend HVAC system maintenance, including filter changes but additional safety precautions are warranted, The risks associated with handling filters contaminated with coronaviruses in ventilation systems under field-use conditions have not been evaluated, Workers performing maintenance and/or replacing filters on any ventilation system with the potential for viral contamination should wear appropriate personal protective equipment (PPE), When feasible, filters can be disinfected with a 10% bleach solution or another appropriate disinfectant, approved for use against SARS-CoV-2, before removal. Introduction | Background and General Recommendations | General Operations References | Determining Building Readiness and Operations for Existing Facilities to Reoccupy After Shut-Down due to Pandemic | Checklist No. Check for proper damper operation. 1 . SARS-CoV-2 = severe acute respiratory syndrome coronavirus 2. Retain in-house facility workers: clean, disinfect, maintain building systems; assess asbestos and lead paint status; pest-proof inside and out; check water and ventilation filters; assess water damage, fix leaks. During the Pandemic, increase Filtration to that recommended in the Filtration Upgrade section below. Determine if the Building was LEED or CHPS Certified. ASHRAE COVID-19 Preparedness Resources; COVID-19: Mitigating transmission via wastewater plumbing systems (Lancet article) CLSI Documents Helpful for COVID-19 Testing (Clinical & Laboratory Standards Institute) Building Health and Safety Considerations (Building Safety Journal) ACHA COVID-19 Guidelines (American College Health Association) If necessary, vent air from system high points and Verify backflow preventers and pressure regulating valves on makeup water lines are functioning properly. Address or clear existing alarms from Building Automation Systems/Building Management Systems to allow for recognition of new alarms that may impact building indoor air quality and consider alarm hierarchy. Measure/Trend all information possible, including temperature (dry bulb), relative humidity, carbon dioxide concentration, zone population, etc. Check the control system and devices for evidence of improper operation. Check expansion tanks and bladder type compression tanks have not become waterlogged. During the summer period before occupancy perform Checklist No. The underlying effort of the designer should be to increase outside air to the spaces, treat return air and or supply air to spaces via mechanical filtration and maintain indoor comfort as defined by the design temperature and relative humidity. ), Some types or configurations for energy recovery systems allow for exhaust air transfer from the exhaust airstream to the supply airstream, while others do not – depending on system configuration this may be cause for concern. Consider adjusting to maximize outdoor air or disabling operation of DCV if it will not adversely impact operation of overall system (Temporary recommendation while operating under infectious disease crisis). How can schools improve ventilation within buildings to help prevent COVID-19 spread? Consider installing portable humidifiers in each classroom for local humidity control if feasible. Schools can take HVAC survey, qualify for help to reduce harmful aerosol transmissions Jan 13, 2021 Jan 13, 2021 ... MI ASHRAE Chapters’ COVID-19 Task Force chair, at email@example.com. Ensure filter rack is sealed to prevent bypass of unfiltered air. All retrofits and modifications must not contradict ASHRAE 62.1 guidelines and must continue to meet code. Ventilation Guidance for Schools: COVID-19. Select guidance that is likely applicable for educational facilities includes: These recommendations and strategies are organized in order from simple first steps, more involved next steps and then more long-term improvements. As a result, ASHRAE’s recommendation, as well as the recommendation of the CDC, highlights the use of high‐efficiency filters. When maintenance tasks are completed, maintenance personnel should immediately wash their hands with soap and water or use an alcohol-based hand sanitizer. Verify coil velocities and coil and unit discharge air temperatures required to maintain desired indoor conditions and to avoid moisture carry over from cooling coils. Develop protocol to handle air cleaning for space prior to re-occupying. This guidance is primarily focused on HVAC systems within school and higher education facilities – many organizations are likely to have challenges outside of these facilities as well – transportation systems (primarily buses) may be an area of specific concern. Select filtration levels (MERV ratings) that are maximized for equipment capabilities, use MERV 13 if equipment allows, while assuring the pressure drop is less than the fans capability. Verify filters are installed correctly. Schools and communities must make challenging decisions to support student learning and community wellbeing. Diseases are named to enable discussion on disease prevention, spread, transmissibility, severity and treatment. Operate all HVAC in occupied mode following minimum periods prior to resuming full occupancy: Any time staff or others are in the building. Determine if a 1" rack can be refitted with a larger rack. Compensate for loss of capacity in summer with lower discharge temps off of AHU – recommend 52 F (this is mainly for VAV units where supply air temperature is controlled and due to additional pressure drop associated with higher efficiency filters). Check and clean fan blades and fan housing. Verify proper operation of safety devices per manufacturer's recommendations. Gather equipment shop drawings or Operation and Maintenance Manuals. Return to Indoor Air and Coronavirus (COVID-19). If MERV 13 is not in place, change filters to MERV 13. If MERV 13 filters are installed in the existing equipment then order additional filters for future filter changes. Does ASHRAE’s guidance agree with guidance from WHO and CDC? Gloucester County Schools in Virginia completed a similar undertaking in all of its buildings in December. Chilled Water, Hot Water and Condenser Water Systems: Monthly. May need to review previous filter orders. Compensate for loss of capacity in winter with portable plug in electric heaters or higher discharge temps. Where worker safety could be at risk, defer semi-annual/ annual maintenance on the equipment up to 60 days until worker safety can be accomplished. ASHRAE Resources American Society of Heating, Refrigerating, and Air Conditioning Engineers Resource Hub This resource hub is a one-stop resource for all of ASHRAE's guidance on reopening, buildings, filtration … Check refrigerant system for leaks. Check for proper evaporator fluid flow and for fluid leaks. ASHRAE Reopening Guide for Schools and Universities On July 22, 2020, the ASHRAE Epidemic Task Force released its updated Reopening Guide for Schools and Universities related to COVID-19. Click MORE to view all general COVID-19 resource guides. Consider air treatment technology to kill/disable airborne infectious aerosols (refer to. • ASHRAE, Reopening of Schools and Universities • ASHRAE, Guidance for Building Operations During the COVID-19 Pandemic, May 2020 • CDC, Operating Schools During Covid-19: CDC’s Considerations, Sept 1 2020 (sc roll down to view Once completed, the list will provide a … School Operations: Get Ready | Information on SARS-CoV-2: General Information on SARS-CoV-2 | Why Do Viruses and Diseases Have Different Names? ... Organization This resource provides considerations for decision-makers and educators on how or when to reopen or close schools in the context of COVID-19. Collect Original Design Drawings if available. Follow up on temperature control, humidity control or elevated carbon dioxide concentration issues observed to address cause(s). 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Filtration and other COVID-19 resources, visit ashrae.org/COVID-19 control or elevated carbon dioxide concentration, zone population,..
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