1.0 Purpose Fume hoods that are candidates for temporary decommissioning are those that are not being used and can be shut off for at least 3 months. The purpose of this document is to define the temporary decommissioning (aka. "hibernation ) of a laboratory chemical hood. The intent is to reduce energy usage and the institutional carbon footprint. This procedure outlines the specific tasks to complete this operation. 2.0 Scope This standard operating procedure applies to all ducted chemical hoods on the Cornell Ithaca Campus. It incorporates the health and safety responsibilities of the Environmental Health and Safety (EHS) department and the energy conservation efforts of the University. 3.0 Definitions 3.1 Fume hood hibernation: The temporary decommissioning of a fume hood, including rebalancing of the laboratory room. 3.2 Fume hood decommission: The mechanical shutdown of a fume hood with the intent of permanent removal. 3.3 Fume hood un-hibernation: The return in operation of a fume hood after temporary shutdown. 4.0 Responsibilities 4.1 Infrastructure Properties and Planning (IPP) Director of Energy Management Provide financial and programmatic support for the management of this part of the Lab Ventilation Management Program. Consult with EHS regarding laboratory ventilation. 4.2 EHS Chemical Hygiene Office Provide programmatic support for the hibernation of fume hoods. Provide an EHS specialist to manage laboratory ventilation. 4.3 EHS Laboratory Ventilation Specialist RSS_LVMP_FH_ Page 1 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
Establish procedures for chemical hood commissioning and annual inspections and hibernation. Provide oversight of training and guidance on fume hood hibernation to EHS staff, Controls Shop or their designees. Consult with IPP Energy Management department regarding laboratory ventilation. Track chemical hood service requests to measure numbers of hoods in hibernation. 4.4 IPP Energy Outreach Coordinator Establish procedures for fume hood hibernation. Provide educational outreach to lab population about energy use of fume hoods. Track fume hood service requests to measure numbers of hoods in hibernation. 4.5 IPP Energy Engineer Establish procedures for fume hood hibernation. Track and communicate energy use reductions related to lab ventilation energy projects. Track fume hood service requests to measure numbers of hoods in hibernation. 4.6 IPP Central Zone Controls, Trades Superintendent, Zone Managers Provide FS Controls Shop Technician(s) to fill service requests related to fume hood hibernation. Oversee work done by FS Controls Shop Technicians. 4.7 IPP Controls Technician Coordinate with University Facility Representative (UFR) and lab occupants for hood shutdown. Schedule and conduct hibernation and re-commissioning of fume hoods. Complete Job Plan and enter results into MAXIMO data base. 4.8 IPP Central Zone Project Associate (Maximo Database Administrator) Maintain database information related to fume hood hibernation. Provide Laboratory Ventilation Specialist with access to test results, including building reports and full testing reports. Send out building reports to building coordinator. RSS_LVMP_FH_ Page 2 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
4.9 University Facility Representative (UFR) Facilitate on-site activities for fume hood hibernation and recommissioning. Make service requests for fume hood hibernation. 4.10 Laboratory Personnel Identify fume hoods that are candidates for hibernation. These are hoods that are not being used and can be shut off for at least 3 months. Coordinate with UFR and IPP Controls technician to safely shutdown hood. Inform UFR of need to re-commission fume hood. 5.0 Procedure Instruction 5.1 Training IPP Controls staff that perform ventilation system maintenance must receive Hazard Communication training as well as job specific training. Laboratory Personnel must receive training in proper fume hood use. This is provided in Lab Safety training as well as other methods of communication with lab occupants (ventilation assessment and inspections). 5.2 Safety 5.2.1 Chemical Contamination If there are concerns about the chemicals/equipment or contamination in a hood, do not do testing and contact the Laboratory Ventilation Specialist with the hood ID and contact information for that laboratory. 5.2.2 Guidance Documents and Forms Guidance for shop personnel performing fume hood hibernation is given in these documents: 1. ToolBox Safety Talk Safety Precautions for Fume Hood Repair 2. ToolBox Safety Talk Fume Hood Decommissioning 3. Fume Hood Notice RSS_LVMP_FH_ Page 3 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
6.0 Asset Management 6.1 Initiate a service request within the Maximo database system. Employees that are not a UFR go to the Facilities Services website. These will go directly to the UFR for approval. www.fs.cornell.edu 6.2 Indicate in the service request that it go directly to the Central Zone Controls Shop. See Maximo Standard Operating Procedures at this link and also in Appendices A, B, and C below: https://maximo.fs.cornell.edu.8474/sop.cfm 6.3 Enter the Energy Management budget number with additional object code for hood hibernation/ un-hibernation within the service request. See Appendices below. 6.4 Upon receipt of service request the UFR must approve it to proceed to the Central Zone Controls in order for the work to be completed. 6.5 Lab Personnel should notify the UFR when the fume hood is to be recommissioned. A service request to the Central Zone Controls must be issued requesting the hood be brought out of hibernation (un-hibernation). RSS_LVMP_FH_ Page 4 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
7.0 Mechanical Shutdown of Fume Hood 7.1 Obtain and wear proper PPE: Safety glasses when working in the lab. 7.2 Survey lab ventilation system for other exhaust sources. If no general exhaust, point exhaust or other hoods are present, hood flow can only be reduced enough to provide exhaust flow for required air changes. 7.3 Confirm that all chemicals and equipment have been removed from hood. If this is not completed then inform the lab occupants, building coordinator or EHS that this job task cannot be completed until this is done. 7.4 Take air flow FPM readings, calculate and record CFM, for entry in OneNote before and after hibernating or reducing hood flow. 7.5 Perform proper steps to decommission hood: 7.6 Hoods not connected to common header: Secure exhaust fan and damper and install lock out tag out if exhaust fan is to be turned off. 7.7 Hoods not connected to common header: Secure VAV and make necessary adjustments to mechanical components and/or controls. 7.8 Place Hood not in use sign on sash and physically secure sash closed. 7.9 Take pressure/flow reading to make certain space is properly balanced and pressurization is correct. Note: If reheat is the only heat source, supply air may have to be increased. 7.10 Have BAS graphics edited show fume hood in hibernation. 7.11 Check BAS and EMCS for alarms generated and have them temporarily taken out of service or tagged to be ignored. 7.12 Place tag on VAV and fan indicating that the fume hood is in vacant mode. See Appendix D of this. 7.13 Notify appropriate personnel (Building coordinator, General foreperson ECCT group, ECCT Manager) that hibernation sequence has been completed. 7.14 Un-: Perform process in reverse. 8.0 Reporting A report from the Maximo Asset Management database is run periodically. Tracking capabilities: RSS_LVMP_FH_ Page 5 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
Numbers of fume hood presently in hibernation Length of time hoods remain in hibernation Departmental response to using this energy conservation mechanism Appendix A Fume Hood Maximo OP1a Purpose: When: Who: A computer The triage of a Fume Hood or Un-hibernation SR sent to FM Operations A SR has been received for the hibernation or un-hibernation of a fume hood(s) FM Operations Manager Resources to Complete Tasks A Maximo account, with Zone Management Access Perform These Tasks: Do These Steps/Notes: 1. Follow OP1, steps 1-4 2. Verify the following information is provided on the SR (the zone should have already contacted the UFR or requestor if necessary information was not provided). Service Request for a Fume Hood a. Summary: Hibernate hood [with identification code] b. Long Description: An estimate of how long the fume hood will be hibernated. Contact information of the requestor (if the requestor information is not already displayed in the Requestor fields of the SR) should be here as well. Additional information as needed. c. Classification: Repair, Maintenance, Service d. Priority: 30 e. Service: HVACR f. Crew: CONTROL RSS_LVMP_FH_ Page 6 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
g. GL Account: [IT-R614705-?????-6470-???-??????-000147] 3. Acknowledge the SR a. Click the Workflow button b. Select Acknowledge Receipt c. Click OK 4. Populate fields on the work order 5. Assign work order following standard procedure a. Click the Related Records tab b. In the Related Work Orders section, populate the following fields on the work order line: Work Type: GS Work Group: CZ Crew: CONTROL c. Click the Save button n 6. When work is complete: a. Contact EH&S personnel to make necessary status changes on Maximo Asset. Appendix B Fume Hood U1b Purpose: When: Who: A computer Verify correct information on a SR for a Fume Hood or Un- Reviewing a Fume Hood or Un- SR in Maximo Unit Facility Representative Resources to Complete Tasks A Maximo account, with UFR access 7. While following U1 or U2, verify the following information is provided on Service Request for a Fume Hood a. Summary: Hibernate hood [with identification code] b. Long Description: An estimate of how long the fume hood will be hibernated. RSS_LVMP_FH_ Page 7 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
the SR: Contact information of the requestor (if the requestor information is not already displayed in the Requestor fields of the SR) should be here as well. Additional information as needed. c. Classification: Repair, Maintenance, Service d. Priority: 30 e. Service: HVACR f. Crew: CONTROL g. GL Account: [IT-R614705-?????-6470-???-??????- 000147]] 8. Important: Please verify the hood has been emptied of all contents prior to sending the SR to the zone. Service Request for a Fume Hood Un- Summary: Un-hibernate hood [with identification code] 1. While following U1 b. Long Description: or U2, verify the following Contact information of the requestor (if the requestor information is provided on information is not already displayed in the Requestor the SR: fields of the SR) should be here as well. a. Additional information as needed. c. Classification: Repair, Maintenance, Service d. Priority: 40 e. Service: HVACR f. Crew: CONTROL g. GL Account: [IT-R614705-?????-6470-???-??????- 000147]] h. Target Finish Date: 48 hours after SR reported date* * There is a policy that hoods will be turned back on within 48 hours of SR submission. The Result Will Be: Appropriate information will be provided on a Maximo service request for a fume hood hibernation or un-hibernation service request before sending the SR to the zone. For a hibernation requests, hood will be emptied of all contents prior to sending the SR to the zone. RSS_LVMP_FH_ Page 8 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
Appendix C Fume Hood Z1b Purpose: When: Who: A computer The triage of a Fume Hood or Un-hibernation SR sent to the zone A SR has been received for the hibernation or un-hibernation of a fume hood(s) Zone Facility Manager Resources to Complete Tasks A Maximo account, with Zone Management Access Perform These Tasks: Do These Steps/Notes: 9. Follow Z1, steps 1-4 Service Request for a Fume Hood 10. Verify the following information is provided on the SR (revise if necessary; contact the UFR or requestor if necessary). 11. Re-route the SR to FM Operations a. Summary: Hibernate hood [with identification code] b. Long Description: An estimate of how long the fume hood will be hibernated. Contact information of the requestor (if the requestor information is not already displayed in the Requestor fields of the SR) should be here as well. Additional information as needed. c. Classification: Repair, Maintenance, Service d. Priority: 30 e. Service: HVACR f. Crew: CONTROL g. GL Account: [IT-R614705-?????-6470-???-??????- 000147]] a. Click the Workflow button b. Select Re-route to Central Zone c. Click OK Appendix C Sash Posting RSS_LVMP_FH_ Page 9 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf
Fume hood hibernation notice to be placed on sash. Appendix D Tag to hang on VSD s and fans of fume hoods that are in hibernation. The equipment is connected to A fume hood that is in. Hood ID # Lab PI: Date: Point of Contact: RSS_LVMP_FH_ Page 10 of 10 https://sp.ehs.cornell.edu/lab-research-safety/chemical-safety/lab-ventilation/documents/rss_lvmp_fh_.pdf