1. Mark Hydeman, PE of Taylor Engineering
Title and 2008 Nonresidential Mechanical and Acceptance Test Requirements
Mark Hydeman, PE of Taylor Engineering
The Non-Residential HVAC Lead for the 2001, 2005 and 2008 Standards
November 2, 2006

2. Acknowledgements Acceptance Tests
CEC Codes and Standards Lead: Bill Pennington
CEC Acceptance Test Lead: Tav Commins
Lead Acceptance Consultant: Jeff Johnson, New Buildings Institute
Content Contributors 2005:
PECI: Larry Luskay (tests)
HMG: Jon McHugh (consultant)
Farnsworth Group: Chad Dorgan (forms)
Taylor Engineering: Mark Hydeman (gadfly)
Content Contributors 2008:
PECI: Larry Luskay, Kristin Heinemeier & Kirstin Pinit
HMG: Jon McHugh
Taylor Engineering: Mark Hydeman
CCC Meeting
Title 24 Acceptance Tests

3. Title 24 Acceptance Tests
Agenda
Review of Title 24 Structure
Review of Acceptance Tests
Detailed Example of an Acceptance Test
CCC role for 2008
Discussion
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Title 24 Acceptance Tests

4. Title 24 Acceptance Tests
Resources – 2005 Standard
The Standard, Title 24
The Non-Residential ACM Manual
Appendix NG (duct leakage)
Appendix NJ (acceptance tests)
The Non-Residential Compliance Manual
Examples
References
Compliance Forms
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5. Title 24 Acceptance Tests
Resources – 2008 Standard
Tav Commins
Ram Verma
Energy Efficiency Hotline
Phone: or
Phone: (toll free in Calif.)
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Title 24 Acceptance Tests

6. Title 24 Acceptance Tests
Iconographic Key
Mandatory Measure
Prescriptive Measure
Acceptance Test
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Title 24 Acceptance Tests

7. Overview of Title 24

8. Title 24 Acceptance Tests
Standards Structure
Design
Construction
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9. Title 24 Acceptance Tests
Mandatory Measures
Must be done in all projects (no trade off)
Things that can’t be modeled or shouldn’t be traded off
Examples
Equipment efficiencies
Ventilation requirements
Temperature controls
Zoning
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Title 24 Acceptance Tests

10. Prescriptive Measures
Can be traded off through the performance method of compliance
Examples
Economizers
Variable air flow
Limitations on electric resistance heat and air cooled chillers
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11. Title 24 Acceptance Tests
Performance Approach
Computer simulation of a project
Two models made:
Budget model meets the mandatory and prescriptive requirements
Design model represents your project
Project complies if TDV of design is less than or equal to TDV of budget model
Can trade off envelope, HVAC and lighting energy
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Title 24 Acceptance Tests

12. Acceptance Testing Overview

13. Title 24 Acceptance Tests
2005
Defined in various mandatory Standard’s sections
Detailed in the NR ACM appendix NJ
2008
Defined in mandatory Standards section 125
Detailed in the NR Standard’s Appendix NRA7
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Title 24 Acceptance Tests

14. 2005 HVAC Acceptance Requirements
ACM Section and Test
Standard Section
NJ 3.1 Variable Air Volume Systems Outdoor Air Acceptance
121(f)
NJ 3.2 Constant Volume Systems Outdoor Air Acceptance
NJ 4 Constant Volume Packaged HVAC Systems Acceptance
122(h)
NJ 5 Air Distribution Acceptance
125(a)
NJ 7 (Air-Side) Economizer Acceptance
125(b)
NJ 8 Demand Control Ventilation Acceptance
121(c)5
NJ 9 Supply Fan Variable Flow Controls Acceptance
125(c)
NJ 10.1 Variable (Hydronic) Flow Controls Acceptance
125(d)
NJ 10.2 Automatic Isolation Controls Acceptance
NJ 10.3 Supply Water Temperature Reset Controls Acceptance
NJ 10.4 Water-loop Heat Pump Controls Acceptance
NJ 10.5 (Pump) Variable Frequency Drive Controls Acceptance
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Title 24 Acceptance Tests

15. 2005 Lighting Acceptance Requirements
ACM Section and Test
Standard Section
NJ 6.1 Automatic Daylighting Controls Acceptance
131(f)
NJ 6.2 Occupancy Sensor Acceptance
NJ 6.3 Manual Daylighting Controls Acceptance
NJ 6.4 Automatic Time Switch Control Acceptance
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Title 24 Acceptance Tests

16. Title 24 Acceptance Tests
Compliance Process
Design is checked and a signed certificate of compliance is submitted for the building permit
Tests are performed and a signed certificate of acceptance is submitted for the certificate of occupancy
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Title 24 Acceptance Tests

17. When Acceptance Testing Occurs?
Specified during the design phase
Implemented during construction
After start-up (except for duct leakage)
Before occupancy
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Title 24 Acceptance Tests

18. Who Does Acceptance Testing?
Can be done by
Engineer, or
Contractor, or
3rd Party
Different parties can do different tests, but…
Someone has to sign the final certificate of acceptance
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Title 24 Acceptance Tests

19. How to Specify the Acceptance Tests
Where do they go in the specifications?
Under TAB Section?
Under Controls?
Under Commissioning?
Throughout several sections?
Wherever you put it you must be clear about:
Who does the work (roles and responsibilities)
What work they must do
When it must be done
Submittal requirements
Who signs the forms
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Title 24 Acceptance Tests

20. Title 24 Acceptance Tests
Acceptance forms end in “–A”
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21. Title 24 Acceptance Tests
AHU-1 MECH-2-A
TAB
AHU-2 MECH-2-A
TAB
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Title 24 Acceptance Tests

22. Title 24 Acceptance Tests
Deleted in 2008  
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Title 24 Acceptance Tests

23. Air-Side Economizer Acceptance

24. Title 24 Acceptance Tests
Purpose
Check economizer installation and provision for exhaust or relief
Test economizer operation
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Title 24 Acceptance Tests

25. Title 24 Acceptance Tests
Overview (2005)
References
Standard Sections §144(e) and §125(b)
Non-Residential ACM Manual NJ 7
Scope
All new systems with air-side economizers
No testing required if economizer is factory installed and certified operational
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Title 24 Acceptance Tests

26. Base Requirement in Title 24
§144(e) Economizers. Each individual cooling fan system that has a design supply capacity over 2,500 cfm and a total mechanical cooling capacity over 75,000 Btu/hr. shall include either:
An air economizer capable of modulating outside-air and return-air dampers to supply 100 percent of the design supply air quantity as outside-air; or
A water economizer …
[Be] capable of providing partial cooling even when additional mechanical cooling is required to meet the remainder of the cooling load.
Air-side economizers shall have high limit shutoff controls complying with TABLE 144-C.
Only where 144(e) applies
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27. Title 24 Acceptance Tests
Related Tests
NJ 3.1 Variable Air Volume Systems Outdoor Air Acceptance
NJ 3.2 Constant Volume System Outdoor Air Acceptance
NJ 8 Demand Control Ventilation Acceptance
This test should be combined with minimum OSA to reduce time and costs
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28. Construction Inspection
High limit lockout switch type and setting
Location and installation of outside air sensor
Wiring of economizer controls
Provision for exhaust or relief
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29. Title 24 Acceptance Tests
Test Procedure
Simulate cooling load with high-limit switch disabled
Simulate cooling load with high-limit switch enabled
Return system to normal
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30. Title 24 Acceptance Tests
Project information (typical)
Construction inspection (measure specific)
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31. Title 24 Acceptance Tests
Certification (typical)
In 2008 a second block with signature will be added for
review of documentation by licensed contractor or engineer
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32. Title 24 Acceptance Tests
Equipment tests (measure specific)
Testing results (measure specific)
Final result (typical)
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33. Title 24 Acceptance Tests
What’s New in 2008
All tests will be in Standards
Clean up of known conflicts
New tests will be added with new measures
Economizer tests for manufacturers will be detailed
Possible testing of fenestration systems
Expansion of lighting tests to signage and outdoor lights
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Title 24 Acceptance Tests

34. Example Economizer Issue
Economizers only required for 2-stage AC units (>65,000 Btuh AND >2,500 cfm)
Testing for all economizers
Tests need to be different for one and two stage units:
Integration
High limit switches
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Title 24 Acceptance Tests

35. Title 24 Acceptance Tests
Hot Issues
How/whether to test high limit switches for electronic controllers (like the Honeywell H705)?
Defining a test that a TAB technician can do
Avoiding warranty issues with controllers/AC units
What to do when a unit fails the test
Should we require 2-stage thermostats for economizers on single stage units?
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36. Title 24 Acceptance Tests
Questions
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