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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	Orchard Gardens K 8
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	3
13. Max ACH	4.2
14. Avg ACH	3.8
15. eACH	0
16. Filter MERV	13
17. Percent Outside Air	100
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	6
21. sqft	430
22. cuft	4300
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 151. Diffuser air volume (cfm) 500. % Outside air 100. Calculated air volume (cfm) outside 500. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 500. ACH outside 4.1. ACH total 4.1. Room 152. Diffuser air volume (cfm) 622. % Outside air 100. Calculated air volume (cfm) outside 622. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 622. ACH outside 3.5. ACH total 3.5. Room 217. Diffuser air volume (cfm) 555. % Outside air 100. Calculated air volume (cfm) outside 555. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 555. ACH outside 4.1. ACH total 4.1. Room 218. Diffuser air volume (cfm) 540. % Outside air 100. Calculated air volume (cfm) outside 540. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 540. ACH outside 4.2. ACH total 4.2. Room 236. Diffuser air volume (cfm) 310. % Outside air 100. Calculated air volume (cfm) outside 310. Calculated air volume (cfm) return 0. Filter efficiency (decimal) 0. Combined air volume (cfm) 310. ACH outside 3. ACH total 3. Room 102. Diffuser air volume (cfm) 692. % Outside air 70. Calculated air volume (cfm) outside 484. Calculated air volume (cfm) return 208. Filter merv rating 13. Filter efficiency (decimal) 0.85. Combined air volume (cfm) 661. ACH outside 6.8. ACH merv filter return air 2.5. ACH total 9.3.

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