Page 1 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Approved as Submitted
TAC Recommendation
Total Mods for  Mechanical in  Approved as Submitted
TAC: 
Mechanical
 30
SubCode:
Mechanical
Ü
2‑Definitions
Mod #
 7836 
Proponent
Amanda Hickman
202
Section
2
Chapter
Approved as Submitted
Adds definition for Large‑diameter ceiling fan
Summary
X
AS
AM

NAR

I

W
Commission Action

4‑Ventilation
Mod #
 7290 
Proponent
James Bickford
404.1
Section
4
Chapter
Approved as Submitted
Changes text of Section 404.1 “Enclosed parking garages.” It also deletes Section 404.2. Section 404.2 is being rolled into Section 404.1.  It clarifies that the exhaust system either has to run constantly or it has to run automatically.
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 8326 
Proponent
Joseph Lstiburek
403.3.2.1
Section
4
Chapter
Approved as Submitted
Provides a credit for balanced mechanical ventilation.
Summary
X
AS
AM

NAR

I

W
Commission Action

5‑Exhaust Systems
Mod #
 7294 
Proponent
James Bickford
504.4.1
Section
5
Chapter
Approved as Submitted
Adds new section 504.4.1 “Exhaust termination outlet and passageway size.”
Summary
X
AS
AM

NAR

I

W
Commission Action

Page 2 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  Approved as Submitted
TAC: 
Mechanical
 30
Mod #
 7319 
Proponent
James Bickford
506.3.13.2
Section
5
Chapter
Approved as Submitted
Modifies section 506.3.13.2 “Termination through an exterior wall.” Intent of change is fire safety related. Clarification to show that Exterior openings shall be located in accordance with section 506.3.13.3.
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7320 
Proponent
James Bickford
506.3.13.2
Section
5
Chapter
Approved as Submitted
Clarifies exhaust outlet termination location
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7321 
Proponent
James Bickford
507.2.6
Section
5
Chapter
Approved as Submitted
Modification of Section 507.2.6 “Clearances for Type I hood.”
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7323 
Proponent
James Bickford
510.8.1
Section
5
Chapter
Approved as Submitted
Adds new section requiring clean outs on ducts conveying combustible dust.
Summary
X
AS
AM

NAR

I

W
Commission Action

6‑Duct Systems

Page 3 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  Approved as Submitted
TAC: 
Mechanical
 30
Mod #
 7344 
Proponent
James Bickford
602.2.1.1
Section
6
Chapter
Approved as Submitted
Modification of text for Sections 602.2.1.1 “Wiring”, 602.2.1.2 “Fire sprinkler piping,” and 602.2.1.3 “Pneumatic tubing.” This proposal concerns consistency with the pass/fail criteria for the testing of products from in these sections, and the listing and labeling requirements.
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7346 
Proponent
James Bickford
602.2.1.6
Section
6
Chapter
Approved as Submitted
Entirely replaces Section 602.2.1.6 “Foam plastic insulation in plenums as interior finish or interior trim”. Deletes sections 602.2.1.6.1, 602.2.1.6.2, 602.2.1.6.3.
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7386 
Proponent
James Bickford
602.2.1.7
Section
6
Chapter
Approved as Submitted
Modification of text for Section 602.2.1.7 “Plastic plumbing piping and tubing.”  Adds new standard UL 2846‑14,
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7387 
Proponent
James Bickford
602.2.1.8
Section
6
Chapter
Approved as Submitted
Adds new Section 602.2.1.8 “Pipe and duct insulation within plenums.”
Summary
X
AS
AM

NAR

I

W
Commission Action

Page 4 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  Approved as Submitted
TAC: 
Mechanical
 30
Mod #
 7388 
Proponent
James Bickford
603.5.2
Section
6
Chapter
Approved as Submitted
Adds new Section 603.5.2 “Phenolic ducts.” Adds new standard “SMACNA Phenolic Duct Construction Standard 1st edition 2015.” Phenolic duct is a new air distribution material.
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7389 
Proponent
James Bickford
603.8.2
Section
6
Chapter
Approved as Submitted
Modifies Section 603.8.2 “Sealing.” Ducts shall be sealed, secured, and then tested prior to concrete encasement or direct burial.
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7394 
Proponent
James Bickford
604.11
Section
6
Chapter
Approved as Submitted
Adds exception to Section 604.11 “Vapor retarders”. Proposal adds an option to the vapor retarder requirements for duct insulation of the FMC.
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 7936 
Proponent
Amanda Hickman
607.4
Section
6
Chapter
Approved as Submitted
This modification revises language in section 607.4
Summary
X
AS
AM

NAR

I

W
Commission Action

Page 5 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  Approved as Submitted
TAC: 
Mechanical
 30
Mod #
 8320 
Proponent
Joseph Lstiburek
601.5
Section
6
Chapter
Approved as Submitted
Allow return air from closets
Summary
X
AS
AM

NAR

I

W
Commission Action

8‑Chimneys and Vents
Mod #
 7395 
Proponent
James Bickford
805.8
Section
8
Chapter
Approved as Submitted
Adds new Section 805.8 “Insulation shield.” the code should require insulation shields for factory‑built and metal chimneys as they require clearance to insulation and represents a fire hazard when one is not installed.
Summary
X
AS
AM

NAR

I

W
Commission Action

9‑Specific Appliances, Fireplaces and Solid Fuel‑burning Equipment
Mod #
 7839 
Proponent
Amanda Hickman
929
Section
9
Chapter
Approved as Submitted
This proposal adds language regarding the testing and labeling of Large‑diameter ceiling fans.
Summary
X
AS
AM

NAR

I

W
Commission Action

12‑Hydronic Piping
Mod #
 7572 
Proponent
James Bickford
1202.5
Section
12
Chapter
Approved as Submitted
ASSE 1061 Performance Requirements for Push Fit Fittings are already referenced in the FPC.
Summary
X
AS
AM

NAR

I

W
Commission Action

Page 6 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  Approved as Submitted
TAC: 
Mechanical
 30
Mod #
 8008 
Proponent
James Bickford
1208.1
Section
12
Chapter
Approved as Submitted
Adds exception to 1208.1 “General.” Adds language from PPFA which allows for limited air testing of plastic piping systems
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 8011 
Proponent
James Bickford
1209.3
Section
12
Chapter
Approved as Submitted
Modifies text for Section 1209 “Embedded piping.” Adds new Section 1209.3.5 “Cross‑linked polyethylene (PEX) joints.”
Summary
X
AS
AM

NAR

I

W
Commission Action

14‑Solar Systems
Mod #
 8034 
Proponent
James Bickford
1402.4
Section
14
Chapter
Approved as Submitted
Modifies text of Section 1402.4 “Roof‑mounted collectors,” and 1402.4.1 “Collectors mounted above the roof.”
Summary
X
AS
AM

NAR

I

W
Commission Action

15‑Referenced Standards
Mod #
 7842 
Proponent
Amanda Hickman
1
Section
15
Chapter
Approved as Submitted
AMCA 230‑15 Reference Standard
UL 507‑2014 Reference Standard
Summary
X
AS
AM

NAR

I

W
Commission Action

Page 7 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  Approved as Submitted
TAC: 
Mechanical
 30
Mod #
 7976 
Proponent
Amanda Hickman
1
Section
15
Chapter
Approved as Submitted
This modification updates the reference standard AMCA 550‑08 to the current version, AMCA/ANSI 550‑15 (Rev. 09/18).
Summary
X
AS
AM

NAR

I

W
Commission Action

SubCode:
Residential
Ü
14‑Heating and Cooling Equipment and Appliances
Mod #
 8360 
Proponent
Oscar Calleja
1411.6
Section
14
Chapter
Approved as Submitted
Refrigerant piping insulation minimum R‑value is shown as R‑4 in this section and is in conflict with the R‑3 shown on Energy Code R403.4. This change would resolve the conflict.
Summary
X
AS
AM

NAR

I

W
Commission Action

15‑Exhaust Systems
Mod #
 8205 
Proponent
Mike Moore
1507.3.2
Section
15
Chapter
Approved as Submitted
Requires labeling of ventilation system control.
Summary
X
AS
AM

NAR

I

W
Commission Action

Mod #
 8362 
Proponent
Oscar Calleja
1502.4.1
Section
15
Chapter
Approved as Submitted
Adds clarification by adding the corresponding metal gauge to listed duct thickness for dryer exhaust metal ducts.
Summary
X
AS
AM

NAR

I

W
Commission Action

Page 8 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  Approved as Submitted
TAC: 
Mechanical
 30
Mod #
 8364 
Proponent
Oscar Calleja
1502.4.2
Section
15
Chapter
Approved as Submitted
Removes requirement for screws in Residential Dryer exhaust ducts. The use of screws was historically prohibited in dryer ducts due to the potential for lint accumulation and fire risk.
Summary
X
AS
AM

NAR

I

W
Commission Action

2712‑Reference Standards
Mod #
 7975 
Proponent
Amanda Hickman
1
Section
2712
Chapter
Approved as Submitted
This modification updates the reference standard ANSI/AMCA 210‑ANSI/ASHRAE 51—07 to the current version ANSI/AMCA 210‑16 / ASHRAE 51‑16
Summary
X
AS
AM

NAR

I

W
Commission Action

No Affirmative Recommendation
TAC Recommendation
Total Mods for  Mechanical in  No Affirmative Recommendation
TAC: 
Mechanical
 25
SubCode:
Mechanical
Ü
2‑Definitions
Mod #
 7276 
Proponent
James Bickford
202
Section
2
Chapter
No Affirmative Recommendation
Clarifies definition of Machine Room
Summary

AS
AM

X
NAR

I

W
Commission Action

Page 9 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  No Affirmative Recommendation
TAC: 
Mechanical
 25
Mod #
 7442 
Proponent
James Bickford
202
Section
2
Chapter
No Affirmative Recommendation
The modification of the 100 HP power threshold in Item 7 clarifies that this is compressor drive power, which is the terminology used in IIAR 2 Section 4.2.3 and ASHRAE 15 Section 7.2.2(g).
Summary

AS
AM

X
NAR

I

W
Commission Action

3‑General Regulations
Mod #
 7166 
Proponent
Brad Ketner
307.2
Section
3
Chapter
No Affirmative Recommendation
We have developed a new safety control, the No Freeze Control, that prevents the evaporator coils on an ac unit from freezing up. This stops potential water in the unit and prevents mold and mildew damage to the unit and home.
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7281 
Proponent
James Bickford
303.7
Section
3
Chapter
No Affirmative Recommendation
This modification completes this section and has all the information necessary for a complete and code compliant installation.
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7282 
Proponent
James Bickford
303.9
Section
3
Chapter
No Affirmative Recommendation
Adds new section 303.9 &quot;Fireplaces in Group I‑2 Condition 2 Occupancies&quot; and 901.5 &quot;Solid fuel‑burning fireplaces and appliances in Group I‑2 Condition 2&quot;
Summary

AS
AM

X
NAR

I

W
Commission Action

4‑Ventilation

Page 10 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  No Affirmative Recommendation
TAC: 
Mechanical
 25
Mod #
 8209 
Proponent
Mike Moore
401.4
Section
4
Chapter
No Affirmative Recommendation
Aligns with 2021 IMC in approving limited applications of factory‑built intake/exhaust combination termination fittings.
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 8217 
Proponent
Mike Moore
403.3.2.5
Section
4
Chapter
No Affirmative Recommendation
Aligns with Section 301.7 of the 2017 FBC, Mechanical; the 2021 IMC; and the 2021 IRC in requiring listing and labeling of ventilation fans to ANSI/AMCA 210 ‑ ANSI/ASHRAE 51.
Summary

AS
AM

X
NAR

I

W
Commission Action

5‑Exhaust Systems
Mod #
 7292 
Proponent
James Bickford
501.2
Section
5
Chapter
No Affirmative Recommendation
Clarify the intent of these sections
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7293 
Proponent
James Bickford
504.4
Section
5
Chapter
No Affirmative Recommendation
Section 504 covers duct construction for dryers, however, it is unclear on the requirement to seal dryer ducts. Sealing is specified in 603.9.
Summary

AS
AM

X
NAR

I

W
Commission Action

Page 11 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  No Affirmative Recommendation
TAC: 
Mechanical
 25
Mod #
 7295 
Proponent
James Bickford
505
Section
5
Chapter
No Affirmative Recommendation
The code needs added coverage for domestic exhaust equipment and downdraft equipment and needs to reference the relevant product standards
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7311 
Proponent
James Bickford
505.1
Section
5
Chapter
No Affirmative Recommendation
Adds text to Section 505.1 “Domestic systems.” Modification regarding fire suppression for range hoods installation in Groups I‑1 and I‑2 occupancies.
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7322 
Proponent
James Bickford
507.6.1
Section
5
Chapter
No Affirmative Recommendation
Clarifies what a smoke generator is.
Summary

AS
AM

X
NAR

I

W
Commission Action

6‑Duct Systems
Mod #
 7341 
Proponent
James Bickford
602.1
Section
6
Chapter
No Affirmative Recommendation
Modification of text for Section 602.1 “General” to permit as a plenum framing cavities addressed in Section 602.3.
Summary

AS
AM

X
NAR

I

W
Commission Action

Page 12 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  No Affirmative Recommendation
TAC: 
Mechanical
 25
Mod #
 7343 
Proponent
James Bickford
602.2.1
Section
6
Chapter
No Affirmative Recommendation
Modification of text for Section 602.2.1 “Materials within plenums.” Concerning material installation within a plenum that should be listed for the application.
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7393 
Proponent
James Bickford
603.9
Section
6
Chapter
No Affirmative Recommendation
This proposal will reduce construction cost and still reduce energy loss that would occur due to duct leakage outside conditioned space. Low pressure longitudinal seam duct leakage is very limited and the small amount of leakage within conditioned space is still useful energy.
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 8322 
Proponent
Joseph Lstiburek
601.5
Section
6
Chapter
No Affirmative Recommendation
Allows return air to be taken from a boiler room, furnace room or mechanical room warming the room reducing relative humidity and mold.
Summary

AS
AM

X
NAR

I

W
Commission Action

11‑Refrigeration
Mod #
 7440 
Proponent
James Bickford
1104.2.2
Section
11
Chapter
No Affirmative Recommendation
Revises Section 1104.2.2 “Industrial occupancies and refrigerated rooms.”  The proposal clarifies that Section 1104.2.2 only applies when a machinery room is otherwise required.
Summary

AS
AM

X
NAR

I

W
Commission Action

Page 13 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  No Affirmative Recommendation
TAC: 
Mechanical
 25
Mod #
 7453 
Proponent
James Bickford
1104.2.2
Section
11
Chapter
No Affirmative Recommendation
Deletes item from Section 1104.2.2 “Industrial occupancies and refrigerated rooms.” The section proposed for deletion is archaic.
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7488 
Proponent
James Bickford
1104.2.2
Section
11
Chapter
No Affirmative Recommendation
Adds exceptions to Section 1104.2.2 (4) “Industrial occupancies and refrigerated rooms.”
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7489 
Proponent
James Bickford
202
Section
11
Chapter
No Affirmative Recommendation
Deletes definition in “REFRIGERATED ROOM OR SPACE.” Modifies Section 1104.2.2 “Industrial Occupancies and refrigerated rooms.”
Summary

AS
AM

X
NAR

I

W
Commission Action

Mod #
 7491 
Proponent
James Bickford
1105.6.1.1
Section
11
Chapter
No Affirmative Recommendation
Adds new Section 1105.6.1.1 “Indoor exhaust opening location.”
Summary

AS
AM

X
NAR

I

W
Commission Action

Page 14 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Total Mods for  Mechanical in  No Affirmative Recommendation
TAC: 
Mechanical
 25
Mod #
 7494 
Proponent
James Bickford
1107.5.3
Section
11
Chapter
No Affirmative Recommendation
Modifies Section 1107.5.3 “Copper tube.” Modification adds press‑connect joints to mechanical joints to 1107.5.3
Summary

AS
AM

X
NAR

I

W
Commission Action

12‑Hydronic Piping
Mod #
 8013 
Proponent
James Bickford
1209.5
Section
12
Chapter
No Affirmative Recommendation
Modifies text of Section 1209.5 “Thermal barrier required.” Deleted sections 1209.5.1 and 1209.5.2.
Summary

AS
AM

X
NAR

I

W
Commission Action

15‑Referenced Standards
Mod #
 7113 
Proponent
Michael Steele
1
Section
15
Chapter
No Affirmative Recommendation
The shown reference year of 2008 for AMCA 550 is incorrect.
Summary

AS
AM

X
NAR

I

W
Commission Action

SubCode:
Residential
Ü
3‑Building Planning
Mod #
 7645 
Proponent
John Hall
324
Section
3
Chapter
No Affirmative Recommendation
The modification provides for solar ready features to facilitate the instalation of solar PV and solar thermal systems without resort to destructive methods.
Summary

AS
AM

X
NAR

I

W
Commission Action

Search Criteria

Page 15 of 15
5/31/2019
Mechanical
TECHNICAL ADVISORY COMMITTEE
WITHOUT COMMENTS
SECOND COMMENT PERIOD
Total Mods for this report:  55
Modification #:
Code Change Cycle:
Chapter & Topic:
Date Submitted From:
TAC:
Proponent Last Name:
Affects HVHZ:
Sub Code:
Code Version:
Commission Action:
Text of Modification:
Section:
Related Modifications:
TAC Recommendation:
Modification Status:
Date Submitted To:
Proponent First Name:
2020
ALL
2020 Triennial Original Modification 11/02/2018 ‑ 12/15/2018
ALL
ALL
M
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
Verified
ALL
ALL
No
Archived: