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California Code of Regulations, Title 24: Section 126*
Effective August 1, 2009, California is implementing changes to the Building Energy Efficiency Standards. If an application for a building permit is submitted on or after August 1, 2009 and if the refrigerated warehouse has a total cold storage and frozen storage area exceeding 3,000 square feet, the standards outlined below must be met.
Exemption: Areas within refrigerated warehouses that are design solely for the purpose of quick chilling or freezing of products with design cooling capacities greater than 240 BTU/hr-ft² are exempt from this regulation.  

Evaporator Requirements
Fan powered evaporators used in coolers and freezers must comply with the following:

  1. Single phase fan motors less than 1 horsepower and less than 460 volts shall be electronically commutated motors
  2. Evaporator fans shall be variable speed and the speed shall be controlled in response to space conditions

Exception: Evaporators served by a single compressor without unloading capacity are exempt from this requirement.

Condensers and Condensing Units

  1. Condensing temperatures for air-cooled condensers under design conditions shall be less than or equal to the design drybulb temperature plus 10 degrees Fahrenheit for systems serving frozen storage and shall be less than or equal to the design drybulb temperature plus 15 degrees F for systems serving cold storage.
  2. All condenser fans for air-cooled condensers/condensing units shall be continuously variable speed and the condensing temperature or pressure control system shall control the speed of all condenser fans serving a common condenser loop in unison. The minimum condensing temperature setpoint shall be less than or equal to 70 degrees Fahrenheit or reset in response to ambient drybulb temperature or refrigeration system load.
  3. All single phase condenser/condensing unit fan motors less than 1 horsepower and less than 460 volts shall be either permanent split capacitor or electronically commutated motors.

Heatcraft Refrigeration Products is dedicated to providing the solutions you need to meet these regulations and will have compliant products available in advance of the effective legislation date. The entire standard is outlined in a document available on the web at:
http://www.energy.ca.gov/title24/2008standards/rulemaking/documents/index.html

If you have any questions regarding application of Heatcraft Refrigeration Products product line in regards to the new regulations, please contact your local Sales Representative or Account Engineering Staff.

* The information contained in document is provided for educational and informational purposes only. The opinions expressed are solely those of Heatcraft and should not be construed as legal advice on any subject matter. The reader should not consider this information to be dispositive of any fact and should always seek the legal advice of counsel in the appropriate jurisdiction. Heatcraft makes no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability of this interpretation for any purpose. Any reliance you place on such information is therefore strictly at your own risk. In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits, arising out of or in connection with the use of this information.