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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	Lyon Mary HS Upper
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	Natural Ventilation Windows and Limited Univent HVAC
12. Min ACH	1.5
13. Max ACH	2
14. Avg ACH	1.7
15. eACH	0
16. Filter MERV
17. Percent Outside Air	62.6
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	6
21. sqft	825
22. cuft	8250
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 119. % Outside air 75. Calculated air volume (cfm) outside 150. Calculated air volume (cfm) return 50. Combined air volume (cfm) 200. ACH outside 1.1. ACH merv filter return air 0.4. ACH total 1.5. ACH Copy paste check (uses total or outside) 1.1. Room 214. % Outside air 80. Calculated air volume (cfm) outside 200. Calculated air volume (cfm) return 50. Combined air volume (cfm) 250. ACH outside 1.5. ACH merv filter return air 0.4. ACH total 1.9. ACH Copy paste check (uses total or outside) 1.5. Room 216. % Outside air 55. Calculated air volume (cfm) outside 120. Calculated air volume (cfm) return 100. Combined air volume (cfm) 220. ACH outside 0.9. ACH merv filter return air 0.8. ACH total 1.7. ACH Copy paste check (uses total or outside) 0.9. Room 311. % Outside air 48. Calculated air volume (cfm) outside 100. Calculated air volume (cfm) return 110. Combined air volume (cfm) 210. ACH outside 0.8. ACH merv filter return air 0.8. ACH total 1.6. ACH Copy paste check (uses total or outside) 0.8. Room 313. % Outside air 56. Calculated air volume (cfm) outside 150. Calculated air volume (cfm) return 120. Combined air volume (cfm) 270. ACH outside 1.1. ACH merv filter return air 0.9. ACH total 2.0. ACH Copy paste check (uses total or outside) 1.1. Room 127. % Outside air 84. Calculated air volume (cfm) outside 515. Calculated air volume (cfm) return 95. Combined air volume (cfm) 610. ACH outside 3.7. ACH merv filter return air 0.7. ACH total 4.4. ACH Copy paste check (uses total or outside) 3.7.

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