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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	Charlestown High School
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	1.8
13. Max ACH	4.1
14. Avg ACH	2.8
15. eACH	0
16. Filter MERV	---
17. Percent Outside Air	69.8
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	6
21. sqft	1056
22. cuft	10560
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 207. Diffuser air volume (cfm) 910. % Outside air 70. Calculated air volume (cfm) outside 637. Calculated air volume (cfm) return 274. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 870. ACH outside 1.9. ACH merv filter return air 0.7. ACH total 2.6. ACH Copy paste check (uses total or outside) 2.6. Room 306. Diffuser air volume (cfm) 300. % Outside air 70. Calculated air volume (cfm) outside 210. Calculated air volume (cfm) return 90. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 287. ACH outside 1.5. ACH merv filter return air 0.55. ACH total 2.05. ACH Copy paste check (uses total or outside) 2.1. Room 402. Diffuser air volume (cfm) 740. % Outside air 70. Calculated air volume (cfm) outside 518. Calculated air volume (cfm) return 222. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 707. ACH outside 2.7. ACH merv filter return air 1. ACH total 3.7. ACH Copy paste check (uses total or outside) 3.7. Room 409. Diffuser air volume (cfm) 500. % Outside air 70. Calculated air volume (cfm) outside 350. Calculated air volume (cfm) return 150. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 478. ACH outside 1.3. ACH merv filter return air 0.5. ACH total 1.8. ACH Copy paste check (uses total or outside) 1.8. Room 539. Diffuser air volume (cfm) 680. % Outside air 70. Calculated air volume (cfm) outside 476. Calculated air volume (cfm) return 204. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 649. ACH outside 1.9. ACH merv filter return air 0.69. ACH total 2.59. ACH Copy paste check (uses total or outside) 2.6. Room 200. Diffuser air volume (cfm) 185. % Outside air 100. Calculated air volume (cfm) outside 185. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 185. ACH outside 1.1. ACH total 1.1. ACH Copy paste check (uses total or outside) 1.1.

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