Title 24 2005 and 2008 Nonresidential Mechanical and Acceptance Test Requirements

1. Title 24 2005 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 http://www.energy.ca.gov/title24/2005standards/index.html

2. AcknowledgementsAcceptance 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 Title 24 Acceptance Tests

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

4. Resources – 2005 Standard http://www.energy.ca.gov/title24/2005standards/index.html • 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 Title 24 Acceptance Tests

5. Resources – 2008 Standard http://www.energy.ca.gov/title24/2008standards/index.html • Tav Comminstcommins@energy.state.ca.us • Ram Vermarverma@energy.state.ca.us • Energy Efficiency Hotline • E-mail: title24@energy.state.ca.us • Phone: 916-654-5106 or • Phone: 1-800-772-3300 (toll free in Calif.) Title 24 Acceptance Tests

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

7. Overview of Title 24

8. Standards Structure Design Construction Title 24 Acceptance Tests

9. 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 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 Title 24 Acceptance Tests

11. 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 Title 24 Acceptance Tests

12. Acceptance Testing Overview

13. 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 Title 24 Acceptance Tests

14. 2005 HVAC Acceptance Requirements Title 24 Acceptance Tests

15. 2005 Lighting Acceptance Requirements Title 24 Acceptance Tests

16. 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 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 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 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 Title 24 Acceptance Tests

20. Acceptance forms end in “–A” Title 24 Acceptance Tests

21. AHU-1 MECH-2-A TAB AHU-2 MECH-2-A TAB Title 24 Acceptance Tests

22. Deleted in 2008   Title 24 Acceptance Tests

23. Air-Side Economizer Acceptance

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

25. 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 Title 24 Acceptance Tests

26. Only where 144(e) applies 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. Title 24 Acceptance Tests

27. 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 Title 24 Acceptance Tests

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 Title 24 Acceptance Tests

29. Test Procedure • Simulate cooling load with high-limit switch disabled • Simulate cooling load with high-limit switch enabled • Return system to normal Title 24 Acceptance Tests

30. Project information(typical) Constructioninspection(measurespecific) Title 24 Acceptance Tests

31. Certification(typical) In 2008 a second block with signature will be added for review of documentation by licensed contractor or engineer Title 24 Acceptance Tests

32. Equipmenttests(measurespecific) Testing results(measurespecific) Final result(typical) Title 24 Acceptance Tests

33. 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 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 Title 24 Acceptance Tests

35. 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? Title 24 Acceptance Tests

36. Questions Title 24 Acceptance Tests