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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	Blackstone Elementary
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	7.6
13. Max ACH	41.9
14. Avg ACH	23.2
15. eACH	0
16. Filter MERV	---
17. Percent Outside Air	69.5
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	6
21. sqft	625
22. cuft	6250
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 A41. Diffuser air volume (cfm) 2206. % Outside air 70. Calculated air volume (cfm) outside 1544. Calculated air volume (cfm) return 662. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 2107. ACH outside 13.3. ACH merv filter return air 4.8. ACH total 18.1. ACH Copy paste check (uses total or outside) 18.1. Room A47. Diffuser air volume (cfm) 1869. % Outside air 70. Calculated air volume (cfm) outside 1308. Calculated air volume (cfm) return 561. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 1785. ACH outside 9.3. ACH merv filter return air 3.4. ACH total 12.7. ACH Copy paste check (uses total or outside) 12.7. Room B11. Diffuser air volume (cfm) 4290. % Outside air 70. Calculated air volume (cfm) outside 3003. Calculated air volume (cfm) return 1287. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 4097. ACH outside 21.7. ACH merv filter return air 7.9. ACH total 29.6. ACH Copy paste check (uses total or outside) 29.6. Room A24. Diffuser air volume (cfm) 4426. % Outside air 70. Calculated air volume (cfm) outside 3098. Calculated air volume (cfm) return 1318. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 4218. ACH outside 30.7. ACH merv filter return air 11.2. ACH total 41.9. ACH Copy paste check (uses total or outside) 41.9. Room B15. Diffuser air volume (cfm) 926. % Outside air 70. Calculated air volume (cfm) outside 648. Calculated air volume (cfm) return 278. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 884. ACH outside 5.6. ACH merv filter return air 2. ACH total 7.6. ACH Copy paste check (uses total or outside) 7.6. Room B34. Diffuser air volume (cfm) 3901. % Outside air 70. Calculated air volume (cfm) outside 2731. Calculated air volume (cfm) return 1170. Filter merv rating 85. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 3726. ACH outside 21.6. ACH merv filter return air 7.9. ACH total 29.5. ACH Copy paste check (uses total or outside) 29.5. Room A003. Diffuser air volume (cfm) 1065. % Outside air 100. Calculated air volume (cfm) outside 1065. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 1065. ACH outside 10.2. ACH total 10.2. ACH Copy paste check (uses total or outside) 10.2.

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