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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	O Bryant Sch of Math Sci
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	Univent Central HVAC
12. Min ACH	1.9
13. Max ACH	7.2
14. Avg ACH	4.1
15. eACH	0
16. Filter MERV
17. Percent Outside Air	50.5
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	4
21. sqft	886.6
22. cuft	8866
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 3-108. % Outside air 45. Calculated air volume (cfm) outside 205. Calculated air volume (cfm) return 255. Combined air volume (cfm) 460. ACH outside 1.3. ACH merv filter return air 1.7. ACH total 3.0. ACH Copy paste check (uses total or outside) 1.3. Room 3-116. % Outside air 57. Calculated air volume (cfm) outside 310. Calculated air volume (cfm) return 295. Combined air volume (cfm) 685. ACH outside 2.0. ACH merv filter return air 1.9. ACH total 4.4. ACH Copy paste check (uses total or outside) 2.5. Room 3-223. % Outside air 61. Calculated air volume (cfm) outside 445. Calculated air volume (cfm) return 290. Combined air volume (cfm) 735. ACH outside 4.3. ACH merv filter return air 2.8. ACH total 7.2. ACH Copy paste check (uses total or outside) 4.3. Room 125. % Outside air 82. Calculated air volume (cfm) outside 454. Calculated air volume (cfm) return 100. Combined air volume (cfm) 554. ACH outside 3.1. ACH merv filter return air 0.7. ACH total 3.7. ACH Copy paste check (uses total or outside) 3.1.

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