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About Us | Contact Us |
| 0. Space Type | BOS-School |
| 1. Establishment Name | O Bryant Sch of Math Science |
| 2. Address | address |
| 3. City | Boston |
| 4. State / Province | MA |
| 5. Country | USA |
| 6. Date | 03/21/2021 |
| 7. Data Source | School District |
| 8. Performed by | External Company |
| 9. Company Name Address Contact | Cashins & Associates, Inc. 599 North Ave #8, Wakefield, MA 01880 |
| 10. Requirement Source | Boston School 3 ACH guideline |
| 11. Technology | Central HVAC |
| 12. Min ACH | 1.6 |
| 13. Max ACH | 5.5 |
| 14. Avg ACH | 3.5 |
| 15. eACH | 0 |
| 16. Filter MERV | --- |
| 17. Percent Outside Air | 60 |
| 18. ON and Ventilates Entire Indoor Area | Yes |
| 19. Vent Clearance min 6 ft | Yes |
| 20. No of Rooms | 2 |
| 21. sqft | 900 |
| 22. cuft | 9000 |
| 23. No of Buildings | 1 |
| 24. Comments | Source Boston School District March 18, 2021. https://www.bostonpublicschools.org/Page/8463 . https://drive.google.com/file/d/1bzam7XeMQDjjv7Og_86PS41K78hBEOfT/view . assumed 10ft ceiling. wACH windows provided in dataset. Calculated wACH from measured CFM rates in dataset do not match. Differences due to errors. Did not use calculated wACH. Room 5104. Diffuser air volume (cfm) 1400. % Outside air 70. Calculated air volume (cfm) outside 980. Calculated air volume (cfm) return 420. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1337. ACH outside 4. ACH merv filter return air 1.5. ACH total 5.5. Room 142. Diffuser air volume (cfm) 585. % Outside air 100. Calculated air volume (cfm) outside 585. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 585. ACH outside 3.9. ACH total 3.9. |