Covered processes, commercial refrigeration, acceptance testing and documentation

Grounded in the retrieved California Energy Code — click a citation to read the verbatim passage:

• § 5.6. High relevance — show source text

  6. Supply fan variable flow controls shall be tested in accordance with NA7.5.6.

  7. Hydronic system variable flow controls shall be tested in accordance with NA7.5.7 and NA7.5.9.

  8. Boiler or chillers that require isolation controls as specified by Section 140.4(k)2 or 140.4(k)3 shall be tested in accordance with NA7.5.7.

  9. Hydronic systems with supply water temperature reset controls shall be tested in accordance with NA7.5.8.

  10. Automatic demand shed controls shall be tested in accordance with NA7.5.10.

  11. Fault Detection and Diagnostics (FDD) for Packaged Direct-Expansion Units shall be tested in accordance with NA7.5.11.

  12. Automatic fault detection and diagnostics (FDD) for air handling units and zone terminal units shall be tested in accordance with NA7.5.12.

  13. Distributed Energy Storage DX AC Systems shall be tested in accordance with NA7.5.13.

  14. Thermal Energy Storage (TES) Systems shall be tested in accordance with NA7.5.14.

  15. Supply air temperature reset controls shall be tested in accordance with NA7.5.15.

  16. Water-cooled chillers served by cooling towers with condenser water reset controls shall be tested in accordance with NA7.5.16.

  17. When an energy management control system is installed, it shall functionally meet all of the applicable requirements of Part 6.

  18. Occupant sensing zone controls shall be tested in accordance with NA7.5.17.

  19. Conductivity controls and overflow alarms for open and closed-circuit cooling towers shall be tested according to NA7.5.18.

  (b) When certification is required by Title 24, Part 1, Section 10-103.2, the acceptance testing specified by Section 120.5(a) shall be performed by a certified mechanical acceptance test technician (CMATT). If the CMATT is operating as an employee, the CMATT shall

  2025 CALIFORNIA ENERGY CODE 79

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

  be employed by a certified mechanical acceptance test employer. The CMATT shall disclose on the certificate of acceptance a valid CMATT certification identification number issued by an approved acceptance test technician certification provider. The CMATT shall complete all certificate of acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

  Note: Authority cited: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402(a)-(b), 25402.1, 25402.4, 25402.5, 25402.8 and 25943, Public Resources Code .

  SECTION 120.6—MANDATORY REQUIREMENTS FOR COVERED PROCESSES

  Nonresidential and hotel/motel buildings shall comply with the applicable requirements of Sections 120.6(a) through 120.6(k), and the applicable requirements of Sections 110.2(a) and 120.3.

  (a) Mandatory requirements for refrigerated warehouses.

• § 10-103.2 High relevance — show source text

  (b) When certification is required by Title 24, Part 1, Section 10-103.2, the acceptance testing specified by Section 120.5(a) shall be performed by a certified mechanical acceptance test technician (CMATT). If the CMATT is operating as an employee, the CMATT shall

  2025 CALIFORNIA ENERGY CODE 79

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

  be employed by a certified mechanical acceptance test employer. The CMATT shall disclose on the certificate of acceptance a valid CMATT certification identification number issued by an approved acceptance test technician certification provider. The CMATT shall complete all certificate of acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

  Note: Authority cited: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402(a)-(b), 25402.1, 25402.4, 25402.5, 25402.8 and 25943, Public Resources Code .

  SECTION 120.6—MANDATORY REQUIREMENTS FOR COVERED PROCESSES

  Nonresidential and hotel/motel buildings shall comply with the applicable requirements of Sections 120.6(a) through 120.6(k), and the applicable requirements of Sections 110.2(a) and 120.3.

  (a) Mandatory requirements for refrigerated warehouses.

  Refrigerated warehouses that are greater than or equal to 3,000 square feet and refrigerated spaces with a sum total of 3,000 square feet or more that are served by the same refrigeration system shall meet the requirements of Section 120.6(a).

  Refrigerated spaces that are less than 3,000 square feet shall meet the requirements of the Appliance Efficiency Regulations for walk-in coolers or freezers contained in the Appliance Efficiency Regulations (California Code of Regulations, Title 20, Sections 1601 through 1608).

  1. Insulation requirements. Exterior surfaces of refrigerated warehouses shall be insulated at least to the R -values in Table 120.6-A-1.

  TABLE 120.6-A-1—REFRIGERATED WAREHOUSE INSULATION	Col2	Col3
  SPACE	SURFACE	MNIMUMR-VALUE (ºF·hr·sf/Btu)
  Freezers	Roof/ceiling	R-40
  Freezers	Wall	R-36
  Freezers	Floor	R-35
  Freezers	Floor with all heating from productive refrigeration capacity1	R-20
  Coolers	Roof/ceiling	R-28
  Coolers	Wall	R-28
  1. All underslab heating is provided by a heat exchanger that provides refrigerant subcooling or other means that result in productive refrigeration capacity on the associated refrigerated system.	1. All underslab heating is provided by a heat exchanger that provides refrigerant subcooling or other means that result in productive refrigeration capacity on the associated refrigerated system.	1. All underslab heating is provided by a heat exchanger that provides refrigerant subcooling or other means that result in productive refrigeration capacity on the associated refrigerated system.

  2. **Underslab heating.
• § 120.5 High relevance — show source text

  120.5 Required Nonresidential Mechanical System Acceptance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

  120.6 Mandatory Requirements for Covered

  Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

  120.7 Mandatory Requirements for Building Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

  120.8 Nonresidential Building Commissioning. . . . . . . . . . 91

  120.9 Mandatory Requirements for Commercial Boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

  120.10 Mandatory Requirements for Fans. . . . . . . . . . . . . . . . 93

  SUBCHAPTER 4 NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—MANDATORY REQUIREMENTS FOR LIGHTING SYSTEMS AND EQUIPMENT, AND ELECTRICAL

  POWER DISTRIBUTION SYSTEMS . . . . . . . . . . . . . . . . . . . . 95

  130.0 Lighting Systems and Equipment, and Electrical Power Distribution Systems—General . . . . . . . . . . . 95

  130.1 Mandatory Indoor Lighting Controls . . . . . . . . . . . . . . 96

  130.2 Outdoor Lighting Controls and Equipment . . . . . . .100

  130.3 Sign Lighting Controls. . . . . . . . . . . . . . . . . . . . . . . . . .101

  130.4 Lighting Control Acceptance and Installation Certificate Requirements. . . . . . . . . . . . . . . . . . . . . .101

  130.5 Electrical Power Distribution Systems . . . . . . . . . . .102

  SUBCHAPTER 5 NONRESIDENTIAL AND

  HOTEL/MOTEL OCCUPANCIES—PERFORMANCE AND

  PRESCRIPTIVE COMPLIANCE APPROACHES FOR

  ACHIEVING ENERGY EFFICIENCY. . . . . . . . . . . . . . . . . . . . 105

  140.0 Performance and Prescriptive Compliance Approaches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

  140.1 Performance Approach: Energy Budgets . . . . . . . . .105

  140.2 Prescriptive Approach . . . . . . . . . . . . . . . . . . . . . . . . .105

  140.3 Prescriptive Requirements for Building Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

  140.4 Prescriptive Requirements for Space-Conditioning Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114

• § 120.5 High relevance — show source text

  (g) Functional performance testing. Functional performance tests shall demonstrate the correct installation and operation of each component, system and system-to-system interface in accordance with the acceptance test requirements in Sections 120.5, 130.4, 140.9, 160.3(d) and 160.5(e). Functional performance testing reports shall contain information addressing each of the building components tested, the testing methods utilized, and include any readings and adjustments made.

  Exception to Section 120.8(g): Healthcare facilities.

  92 2025 CALIFORNIA ENERGY CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

  (h) Documentation and training. A systems manual and systems operations training shall be completed.

  1. Systems manual. Documentation of the operational aspects of the building shall be completed within the systems manual and delivered to the building owner or representative and facilities operator. The systems manual shall include the following: A. Site information, including facility description, history and current requirements; B. Site contact information;

  C. Instructions for basic operations and maintenance, including general site operating procedures, basic troubleshooting, recommended maintenance requirements, and a site events log; D. Description of major systems; E. Site equipment inventory and maintenance notes; and F. A copy of all special inspection verifications required by the enforcing agency or the standards. 2. Systems operations training. The training of the appropriate maintenance staff for each equipment type or system shall be documented in the commissioning report. Training materials shall include the following: A. System and equipment overview (i.e., what the equipment is, what it does and with what other systems or equipment it interfaces); B. Review and demonstration of operation, servicing and preventive maintenance procedures; C. Review of the information in the systems manual; and D. Review of the record drawings on the systems and equipment.

  (i) Commissioning report. A complete report of commissioning process activities undertaken through the design, construction and reporting recommendations for post- construction phases of the building project shall be completed and provided to the owner or owner’s representative.

  Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code.

  SECTION 120.9—MANDATORY REQUIREMENTS FOR COMMERCIAL BOILERS

  (a) Combustion air positive shut-off shall be provided on all newly installed boilers as follows:

  1. All boilers with an input capacity of 2.5 MMBtu/h (2,500,000 Btu/h) and above, in which the boiler is designed to operate with a nonpositive vent static pressure.
  2. All boilers where one stack serves two or more boilers with a total combined input capacity per stack of 2.5 MMBtu/h (2,500,000 Btu/h).

  (b) Boiler combustion air fans with motors 10 horsepower or larger shall meet one of the following for newly installed boilers:

  1. The fan motor shall be driven by a variable speed drive, or
  2. The fan motor shall include controls that limit the fan motor demand to no more than 30 percent of the total design wattage at 50 percent of design air volume.
• § 4.420 High relevance — show source text

  410|≥4.420|NA|AHRI
  550/590| |Water
  source
  electri-
  cally
  operated
  positive
  displace-
  ment|<75|≤0.7885
  FL
  ≤0.6316
  IPLV.IP|≤0.7875
  FL
  ≤0.5145
  IPLV.IP|75/655|NA|NA|NA|≥3.550|NA|NA|NA|6.150|6.150| |Water
  source
  electri-
  cally
  operated
  positive
  displace-
  ment|≥75
  and
  <150|≤0.7579
  FL
  ≤0.5895
  IPLV.IP|≤0.7140
  FL
  ≤0.4620
  IPLV.IP|54/445|≥4.640|≥3.680|≥2.680|NA|≥8.330|≥6.410|≥4.420|NA|NA| |Water
  source
  electri-
  cally
  operated
  positive
  displace-
  ment|≥75
  and
  <150|≤0.7579
  FL
  ≤0.5895
  IPLV.IP|≤0.7140
  FL
  ≤0.4620
  IPLV.IP|75/655|NA|NA|NA|≥3.550|NA|NA|NA|6.150|6.150| |Water
  source
  electri-
  cally
  operated
  positive
  displace-
  ment|≥150
  and
  <300|≤0.6947
  FL
  ≤0.5684
  IPLV.IP|≤0.7140
  FL
  ≤0.4620
  IPLV.IP|54/445|≥4.640|≥3.680|≥2.680|NA|≥8.330|≥6.410|≥4.420|NA|NA| |Water
  source
  electri-
  cally
  operated
  positive
  displace-
  ment|≥150
  and
  <300|≤0.6947
  FL
  ≤0.5684
  IPLV.IP|≤0.7140
  FL
  ≤0.4620
  IPLV.IP|75/655|NA|NA|NA|≥3.550|NA|NA|NA|6.150|6.150| |Water
  source
  electri-
  cally
  operated
  positive
  displace-
  ment|≥300
  and
  <600|≤0.6421
  FL
  ≤0.5474
  IPLV.IP|≤0.6563
  FL
  ≤0.4305
  IPLV.IP|54/445|≥4.930|≥3.960|≥2.970|NA|≥8.900|≥6.

• § 802.6 High relevance — show source text

  E 802.6 Post Construction Documentation and Train- ing. A system manual and systems operations training are required.

  E 802.6.1 Systems Manual. Documentation of the operational aspects of the HVAC system shall be completed within the systems manual and delivered to the building owner and facilities operator. The systems manual shall include not less than the following:

  (1) Site information, including facility description, history, and current requirements.

  (2) Site contact information.

  (3) Basic O&M, including general site operating procedures, basic troubleshooting, recommended maintenance requirements, and site events log.

  (4) Major systems.

  (5) Site equipment inventory and maintenance notes.

  (6) Equipment/system warranty documentation and information.

  (7) “As-Built” design drawings.

  (8) Other resources and documentation.

  E 802.6.2 Systems Operations Training. The training of the appropriate maintenance staff for each equipment type or system shall include not less than the following:

  (1) System/Equipment overview (what it is, what it does, and what other systems or equipment it interfaces with).

  (2) Review of the information in the systems manual.

  (3) Review of the record drawings on the system/equip ment.

  E 802.7 Commissioning Report. A complete report of commissioning process activities undertaken through the design, construction, and post-construction phases of the building project shall be completed and provided to the

  owner.

  Part II

  E 803.0 Commissioning Acceptance.

  E 803.1 General. Part II of this appendix provides a means of verifying the commissioning requirements of Section E 802.1. The activities specified in Part II of this appendix includes three aspects, as described as follows:

  (1) Visual inspection of the equipment and installation.

  (2) Review of the certification requirements.

  (3) Functional tests of the systems and controls.

  E 803.2 Construction Documents. Details of commissioning acceptance requirements shall be incorporated into the construction documents, including information that describes the details of the functional tests to be performed. This information shall be permitted to be integrated into the specifications for testing and air balancing, energy management and control system, equipment startup procedures or commissioning. It is possible that the work will be performed by a combination of the test and balance (TAB) contractor,

  480 2025 CALIFORNIA MECHANICAL CODE

  ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

  APPENDIX E

  mechanical/electrical contractor, and the energy management control system (EMCS) contractor, so applicable roles and responsibilities shall be clearly called out.

  E 803.2.1 Roles and Responsibilities. The roles and responsibilities of the persons involved in commissioning acceptance are included in Section E 803.2.1.1 through Section E 803.2.1.3.

  E 803.2.1.1 Field Technician. The field technician shall be responsible for performing and documenting the results of the acceptance procedures on the certificate of acceptance forms. The field technician shall sign the certificate of acceptance to certify that the information he provides on the certificate of acceptance is true and correct.

  E 803.2.1.2 Responsible Person. The responsible person shall be the contractor or registered design professional of record. A certificate of acceptance shall be signed by a responsible person to take responsibility for the scope of work specified by the certificate of acceptance document.

• § 801.0 Medium relevance — show source text

  • I certify that the information provided on this form substantiates that the construction/installation identified on this form complies with the acceptance requirements indicated in the plans and specifications approved by the enforcement agency, and conforms to the applicable acceptance requirements and procedures specified in Section E 801.0 through Section E 806.0.

  • I have confirmed that the Installation Certificate(s) for the construction/installation identified on this form has been completed and is posted or made available with the permit(s) issued for the building.

  • I will ensure that a completed, signed copy of this Certificate of Acceptance shall be posted, or made available with the building permit(s) issued for the building, and made available to the enforcement agency for all applicable inspections. I understand that a signed copy of this Certificate of Acceptance is required to be included with the documentation the builder

  provides to the building owner at occupancy.	Col2	Col3	Col4
  Company Name:	Company Name:	Company Name:	Phone:
  Responsible Person’s Name:	Responsible Person’s Name:	Responsible Person’s Signature:	Responsible Person’s Signature:
  License:	Date Signed:	Position With Company (Title):	Position With Company (Title):

  526 2025 CALIFORNIA MECHANICAL CODE

  ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

  APPENDIX E

  CERTIFICATE OF ACCEPTANCE MECH-14A	Col2
  Distributed Energy Storage DX AC Systems Acceptance (Page 2 of 3)	Distributed Energy Storage DX AC Systems Acceptance (Page 2 of 3)
  Project Name/Address:	Project Name/Address:
  System Name or Identification/Tag:	System Location or Area Served:

  Intent: Verify that the system detects common faults in air handling units and zone terminal units.

  Construction Inspection

  1. Instrumentation to perform test includes, but not limited to: a. No special instrumentation is required to perform these tests.
  2. Installation.

  Prior to Performance Testing, verify and document the following:  The water tank is filled to the proper level.

   The water tank is sitting on a foundation with adequate structural strength.

   The water tank is insulated and the top cover is in place.

   The DES/DXAC is installed correctly (refrigerant piping, etc.).

   Verify that the correct model number is installed and configured.

  A. Functional Testing	Results
  Step 1: Simulate no cooling load during a nighttime period by setting system time to between 9:00 p.m. and 6:00 a.m. Raise the space temperature setpoint above the current space temperature. Verify and document the following:	Step 1: Simulate no cooling load during a nighttime period by setting system time to between 9:00 p.m. and 6:00 a.m. **Raise the space temperature setpoint above the current space temperature.

• § 10-103 Medium relevance — show source text

  The building owner or owner’s representative shall include the Design Review Kickoff Certificate of Compliance form in the certificate of compliance documentation (as specified in Part 1 Section 10-103). 3. Construction documents design review. The construction documents design review Checklist Certificate of Compliance shall list the items checked by the design reviewer during the construction document review. The completed form shall be returned to the owner and design team for review and sign-off. The building owner or owner’s representative shall include this form in the certificate of compliance documentation (as specified in Part 1 Section 10-103).

  (e) Commissioning measures shown in the construction documents. Complete descriptions of all measures or requirements necessary for commissioning shall be included in the construction documents (plans and specifications). Commissioning measures or requirements shall be clear, detailed and complete to clarify the commissioning process.

  (f) Commissioning plan. Prior to permit issuance a commissioning plan shall be completed to document how the project will be commissioned and shall be started during the design phase of the building project. The commissioning plan shall include the following:

  1. General project information;
  2. Commissioning goals;
  3. Systems to be commissioned; and
  4. Plans to test systems and components, which shall include: A. An explanation of the original design intent; B. Equipment and systems to be tested, including the extent of tests; C. Functions to be tested;

  D. Conditions under which the test shall be performed; E. Measurable criteria for acceptable performance; F. Commissioning team information; and G. Commissioning process activities, schedules and responsibilities. Plans for the completion of commissioning requirements listed in Sections 120.8(g) through 120.8(i) shall be included.

  (g) Functional performance testing. Functional performance tests shall demonstrate the correct installation and operation of each component, system and system-to-system interface in accordance with the acceptance test requirements in Sections 120.5, 130.4, 140.9, 160.3(d) and 160.5(e). Functional performance testing reports shall contain information addressing each of the building components tested, the testing methods utilized, and include any readings and adjustments made.

  Exception to Section 120.8(g): Healthcare facilities.

  92 2025 CALIFORNIA ENERGY CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

  (h) Documentation and training. A systems manual and systems operations training shall be completed.

  1. Systems manual. Documentation of the operational aspects of the building shall be completed within the systems manual and delivered to the building owner or representative and facilities operator. The systems manual shall include the following: A. Site information, including facility description, history and current requirements; B. Site contact information;

  C. Instructions for basic operations and maintenance, including general site operating procedures, basic troubleshooting, recommended maintenance requirements, and a site events log; D. Description of major systems; E. Site equipment inventory and maintenance notes; and F. A copy of all special inspection verifications required by the enforcing agency or the standards. 2. Systems operations training. The training of the appropriate maintenance staff for each equipment type or system shall be documented in the commissioning report.

• § 6.44 Medium relevance — show source text

  17|6.44|6.66|6.99|7.23|7.40| |45|75|30|6.08|6.34|6.54|6.84|7.06|7.22| |44|75|31|6.00|6.24|6.43|6.71|6.90|7.05| |43|75|32|5.91|6.15|6.33|6.58|6.76|6.89| |42|75|33|5.83|6.07|6.23|6.47|6.63|6.75| |41|75|34|5.74|5.98|6.14|6.36|6.51|6.62| |46|80|34|5.74|5.98|6.14|6.36|6.51|6.62| |40|75|35|5.65|5.90|6.05|6.26|6.40|6.51| |45|80|35|5.65|5.90|6.05|6.26|6.40|6.51| |44|80|36|5.56|5.81|5.97|6.17|6.30|6.40| |43|80|37|5.46|5.73|5.89|6.08|6.21|6.30| |42|80|38|5.35|5.64|5.80|6.00|6.12|6.20| |41|80|39|5.23|5.54|5.71|5.91|6.03|6.11| |46|85|39|5.23|5.54|5.71|5.91|6.03|6.11| |40|80|40|5.10|5.44|5.62|5.83|5.95|6.03| |45|85|40|5.10|5.44|5.62|5.83|5.95|6.03| |44|85|41|4.96|5.33|5.55|5.74|5.86|5.94| |43|85|42|4.81|5.21|5.42|5.66|5.78|5.86| |42|85|43|4.63|5.08|5.31|5.56|5.69|5.77| |41|85|44|4.45|4.93|5.19|5.46|5.60|5.69| |40|85|45|4.24|4.77|5.06|5.35|5.50|5.59| |Condenser DT2|Condenser DT2|Condenser DT2|14.04|11.23|9.36|7.02|5.62|4.68| |1. LIFT = Entering Condenser Water Temperature (°F) – Leaving Chilled Water Temperature (°F)
  2.

• § 120.6 Medium relevance — show source text

  D. New screw compressors with nominal electric motor power greater than 150 HP shall include the ability to automatically vary the compressor volume ratio (Vi) in response to operating pressures. 6. Infiltration barriers. Passageways between freezers and higher-temperature spaces, and passageways between coolers and nonrefrigerated spaces, shall have an infiltration barrier consisting of strip curtains, an automaticallyclosing door or an air curtain designed by the manufacturer for use in the passageway and temperature for which it is applied. Exception 1 to Section 120.6(a)6: Openings with less than 16 square feet of opening area. Exception 2 to Section 120.6(a)6: Dock doorways for trailers. 7. Refrigerated warehouse acceptance. Before an occupancy permit is granted for a new refrigerated warehouse, or before a new refrigeration system serving a refrigerated warehouse is operated for normal use, the following equipment and systems shall be certified as meeting the acceptance requirements for code compliance, as specified by the Reference Nonresidential Appendix NA7. A certificate of acceptance shall be submitted to the enforcement agency that certifies that the equipment and systems meet the acceptance requirements: A. Electric resistance underslab heating systems shall be tested in accordance with NA7.10.1. B. Evaporators fan motor controls shall be tested in accordance with NA7.10.2. C. Evaporative condensers shall be tested in accordance with NA7.10.3.1.

  D. Air-Cooled condensers shall be tested in accordance with NA7.10.3.2.

  E. Adiabatic condensers shall be tested in accordance with NA7.10.3.3.

  F. Variable speed compressors shall be tested in accordance with NA7.10.4. G. Transcritical CO 2 refrigeration systems shall be tested in accordance with NA7.20.1. 8. Transcritical CO 2 gas coolers. New fan-powered gas coolers on all new transcritical CO 2 refrigeration systems shall conform to the following: A. Air-cooled gas coolers are prohibited in Climate Zones 9 through 15. B. Design leaving gas temperature for air-cooled gas coolers shall be less than or equal to the design dry-bulb temperature plus 6°F. Exception to Section 120.6(a)8B: Design leaving gas temperature for air-cooled gas coolers in Climate Zones 2, 4 and 8 shall be less than or equal to the design dry-bulb temperature plus 8°F.

  2025 CALIFORNIA ENERGY CODE 83

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS

  C. Design leaving gas temperature for adiabatic gas coolers necessary to reject the design total heat of rejection of a refrigeration system assuming dry mode performance shall be less than or equal to the design dry-bulb temperature plus 15°F. D. All gas cooler fans shall be continuously variable speed, with the speed of all fans serving a common condenser high side controlled in unison.

  E. While operating below the critical point, the gas cooler pressure shall be controlled in accordance with Section 120.6(a)4F.

• § 0.249 Medium relevance — show source text

  24
  |0.249
  |0.048
  |–
  | |4.94|0.326|0.063|–| |5.65|0.413|0.080|–| |6.36|0.507|0.098|–| |7.06|0.611|0.118|0.030| |7.77|0.723|0.139|0.035| |8.47|0.843|0.162|0.041| |9.18|0.969|0.187|0.047| |9.89|1.108|0.212|0.053| |10.59|1.252|0.240|0.060| |12.36|1.647|0.315|0.079| |14.12
  |2.090
  |0.398
  |0.100
  | |15.89
  |2.580
  |0.490
  |0.123
  | |17.66|3.116|0.591|0.148| |19.42|–|0.701|0.176| |21.19|–|0.818|0.205| |22.95|–|0.944|0.236| |24.72|–|1.078|0.268| |28.25|–|1.369|0.341| |31.78|–|1.690|0.421| |35.31|–|2.043|0.509| |38.84|–|2.425|0.603| |42.37|–|2.838|0.705| |45.90
  |–
  |3.280
  |0.814
  | |49.43|–|3.751|0.929| |52.97|–|4.249|1.052| |56.50|–|–|1.181| |60.03|–|–|1.318| |63.56|–|–|1.461| |67.09|–|–|1.611| |70.62|–|–|1.768| |81.21|–|–|2.276| |88.28|–|–|2.647| |95.34|–|–|3.044|

  FLOW RATE (SCFM)1	PRESSURE DROP (psi) PER 100 FEET2	Col3	Col4
  FLOW RATE (SCFM)1	1⁄2 INCH PIPE	3⁄4 INCH PIPE	1 INCH PIPE
  5.30	0.126	0.024	–
  10.59	0.430	0.082	–
  15.89	0.886	0.168	–
  21.19	1.485	0.281	–
  26.48	2.220	0.419	–
  31.78	3.089	0.581	–
  37.08	4.087	0.766	–
  42.37	–	0.975	–
  47.67	–	1.206	–
  52.97	–	1.460	0.361
  58.26	–	1.736	0.429
  63.56	–	2.033	0.502
  68.85	–	2.

• § 110.0 Medium relevance — show source text

  (b) Mandatory requirements for commercial refrigeration.

  Retail food or beverage stores with 8,000 square feet or more of conditioned floor area, and that utilize either refrigerated display cases, or walk-in coolers or freezers shall meet all applicable state and federal appliance and equipment standards consistent with Section 110.0 and 110.1 or, for equipment not subject to such standards, the requirements of Subsections 1 through 4.

  1. Condensers serving refrigeration systems. Fan-powered condensers shall conform to the following requirements: A. All condenser fans for air-cooled condensers, evaporative-cooled condensers, adiabatic condensers, gas coolers, airor water-cooled fluid coolers or cooling towers shall be continuously variable speed, with the speed of all fans serving a common condenser high side controlled in unison. B. The refrigeration system condenser controls for systems with air-cooled condensers shall use variable- setpoint control logic to reset the condensing temperature setpoint in response to ambient drybulb temperature. C. The refrigeration system condenser controls for systems with evaporative-cooled condensers shall use variablesetpoint control logic to reset the condensing temperature setpoint in response to ambient wetbulb temperature. D. The refrigeration system condenser controls for systems with adiabatic condensers shall use variable setpoint control logic to reset the condensing temperature setpoint in response to ambient drybulb temperature while operating in dry mode. Exception 1 to Section 120.6(b)1B, C and D: Condensing temperature control strategies approved by the executive director that have been demonstrated to provide equal energy savings. Exception 2 to Section 120.6(b)1D: Systems served by adiabatic condensers in Climate Zone 16. E. The saturated condensing temperature necessary for adiabatic condensers to reject the design total heat of rejection of a refrigeration system assuming dry mode performance shall be less than or equal to: i. The design drybulb temperature plus 20°F for systems serving freezers; ii. The design drybulb temperature plus 30°F for systems serving coolers. F. The minimum condensing temperature setpoint shall be less than or equal to 70°F. G. Fan-powered condensers shall meet the specific efficiency requirements listed in Table 120.6-D. Exception 1 to Section 120.6(b)1G: Condensers with a total heat rejection capacity of less than 150,000 Btuh at the specific efficiency rating condition. Exception 2 to Section 120.6(b)1G: Stores located in Climate Zone 1. Exception 3 to Section 120.6(b)1G: Existing condensers that are reused for an addition or alteration.

  84 2025 CALIFORNIA ENERGY CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVERED PROCESSES—MANDATORY REQUIREMENTS