Summary of Modifications/Changes
in this Update
This Summary of Changes is for information only.
It is not a part of the referenced document, and should not be used for project documentation.
U.S. Department of Veterans Affairs♦Office of Construction & Facilities Management

DATE OF THIS VERSION (new)March 1, 2024
TITLE OF DOCUMENT (new title if applicable):
Air-To-Air Energy Recovery Equipment, 23 72 00
DATE OF VERSION BEING SUPERSEDED (old):
March 1, 2023
DESCRIPTION OF DOCUMENT (previous title, number, other identifying data):
Air-To-Air Energy Recovery Equipment, 23 72 00
SUMMARY OF CHANGES IN THIS VERSION:
1. Updated dates on standards.
2. General: Added SPEC WRITER NOTE: “There could be more than one type of refrigerant

3.
4.
5.
6.

required for the project. Edit paragraph and associated subparagraphs to suit projectrequirements in the refrigerant selection.”
Made minor updates for consistency throughout the specification.
Updated section 1.2 Related Work
Updated section 1.3 Applicable Publications
Updated equipment material and performance requirements

Summary of Modifications/Changes
in this Update
This Summary of Changes is for information only.
It is not a part of the referenced document, and should not be used for project documentation.
U.S. Department of Veterans Affairs♦Office of Construction & Facilities Management

DATE OF THIS VERSION (new)March 1, 2023
TITLE OF DOCUMENT (new title if applicable):
Air-To-Air Energy Recovery Equipment, 23 72 00
DATE OF VERSION BEING SUPERSEDED (old):
February 1, 2020
DESCRIPTION OF DOCUMENT (previous title, number, other identifying data):
Air-To-Air Energy Recovery Equipment, 23 72 00
SUMMARY OF CHANGES IN THIS VERSION:
General:Added additional spec writer note instructions.
Made minor updates for consistency throughout the specification.
2. Updated section 1.2 Related Work
3. Updated section 1.3 Applicable Publications
4. Updated equipment material and performance requirements
1.

Summary of Modifications/Changes
in this Update
This Summary of Changes is for information only.
It is not a part of the referenced document, and should not be used for project documentation.
U.S. Department of Veterans Affairs♦Office of Construction & Facilities Management

DATE OF THIS VERSION:
March 1, 2020
TITLE OF DOCUMENT:
Air-to-Air Energy Recovery Equipment, 23 72 00
DATE OF VERSION BEING SUPERSEDED (old):
May 1, 2011
DESCRIPTION OF DOCUMENT (previous title, number, other identifying data):
Air-to-Air Energy Recovery Equipment, 23 72 00
SUMMARY OF CHANGES IN THIS VERSION:
1. Provided a SPEC WRITER NOTE on the first page for updating and editing the ApplicablePublication list. (Provide the year of latest edition to each publication listed in Article 1.5
APPLICABLE PUBLICATIONS.)
2. Added ASHRAE Standard 62.1 to Applicable Publication list.
3. Added the following SPEC WRITER NOTE in Artcle 1.5 APPLICABLE PUBLICATIONS. (Insert
the year of approved latest edition of the publications between the brakets // // and delete
the brakets if applicable to this project.)
4. Updated the dates of the edition for the applicable publications.
5. Replceed the Resident Engineer with COR.
6. Corrected misspelled words and made general minor revisions.