[Code of Federal Regulations] [Title 10, Volume 3] [Revised as of January 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 10CFR431.96] [Page 422-424] TITLE 10--ENERGY CHAPTER II--DEPARTMENT OF ENERGY PART 431_ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT--Table of Contents Subpart F_Commercial Air Conditioners and Heat Pumps Sec. 431.96 Uniform test method for the measurement of energy efficiency of small and large commercial package air conditioning and heating equipment, packaged terminal air conditioners, and packaged terminal heat pumps. (a) Scope. This section contains test procedures you must follow if, pursuant to EPCA, you are measuring the energy efficiency of any small or large commercial package air-conditioning [[Page 423]] and heating equipment, packaged terminal air conditioner or packaged terminal heat pump. (b) Testing and Calculations. Determine the energy efficiency of each covered product by conducting the test procedure(s) listed in the rightmost column of Table 1 of this section or the two rightmost columns of Table 2 of this section, that apply to the energy efficiency descriptor for that product, category, and cooling capacity. Table 1 to Sec. 431.96--Test Procedures for Certain Small Commercial Package Air Conditioning and Heating Equipment (All Water-Source Equipment and Other Equipment Less Than 65,000 Btu/h), for Large Commercial Package Air Conditioning and Heating Equipment and for Packaged Terminal Air Conditioners and Packaged Terminal Heat Pumps ---------------------------------------------------------------------------------------------------------------- Use tests, Product Category Cooling capacity Energy efficiency conditions and descriptor procedures \1\ in ---------------------------------------------------------------------------------------------------------------- Small Commercial Packaged Air Air Cooled, 3 <65,000 Btu/h..... SEER.............. ARI Standard 210/ Conditioning and Heating Phase, AC and HP 240-2003 Equipment --------------------------------------- HSPF.............. ARI Standard 210/ 240-2003 ------------------------------------------------------------------------------- Water Cooled and <65,000 Btu/h..... EER............... ARI Standard 210/ Evaporatively 240-2003 Cooled AC ------------------------------------------------------------------------------- Water-Source HP... <135,000 Btu/h.... EER............... ISO Standard 13256- 1 (1998) --------------------------------------- COP............... ISO Standard 13256- 1 (1998) ---------------------------------------------------------------------------------------------------------------- Large Commercial Packaged Air Air Cooled AC and =135,00 EER............... ARI Standard 340/ Conditioning and Heating HP. 0 Btu/h and 360-2000 Equipment <240,000 Btu/h. --------------------------------------- COP............... ARI Standard 340/ 360-2000 ------------------------------------------------------------------------------- Water Cooled AC... =135,00 EER............... ARI Standard 340/ 0 Btu/h and 360-2000 <240,000 Btu/h. ------------------------------------------------------------------------------- Evaporatively =135,00 EER............... ARI Standard 340/ Cooled AC. 0 Btu/h and 360-2000 <240,000 Btu/h. ---------------------------------------------------------------------------------------------------------------- Packaged Terminal Air AC and HP......... All............... EER............... ARI Standard 310/ Conditioners and Heat Pumps 380-2004 ------------------------------------------------------------------------------- HP................ All............... COP............... ARI Standard 310/ 380-2004 ---------------------------------------------------------------------------------------------------------------- \1\ Incorporated by reference, see Sec. 431.95. Table 2 to Sec. 431.96--Test Procedures for Small Commercial Package Air Conditioning and Heating Equipment =65,000 Btu/h and <135,000 Btu/h (Other Than Water-Source Equipment) ---------------------------------------------------------------------------------------------------------------- Energy Category efficiency Use tests, conditions and With these additional descriptor procedures \1\ in stipulations \2\ ---------------------------------------------------------------------------------------------------------------- Air Cooled AC and HP................... EER ARI Standard 340/360-2000 1. Models with a desuperheater/ COP water heating device: Establish Standard Ratings of units equipped with a refrigerant-to-water heat exchanger to heat domestic water (i.e., a desuperheater), with the desuperheater not in operation. [[Page 424]] ............ 2. Models Manufactured Without Indoor Air- Circulating Fans: (a) Establish Standard Ratings of units which do not have indoor air circulating fans furnished as part of the model, i.e., split systems with indoor coil alone, by subtracting from the total cooling capacity 1,250 Btu/h per 1,000 cfm [775 W/m\3\/s], and by adding the same amount to the heating capacity. Increase total power input for both heating and cooling by 365 W per 1,000 cfm [226 W/ m\3\/s] of indoor air circulated. ............ (b) Equipment which does not incorporate an indoor fan, but is rated in combination with a device employing a fan, shall be rated as described in 6.1.3.2a of 340/ 360-2000. For equipment of this class which is rated for general use to be applied to a variety of heating units, the indoor-coil airflow rate shall be (1) specified by the manufacturer in Standard Ratings, not to exceed 37.5 SCFM/1,000 Btu/h [0.06 m\3\/s per 1,000 W] of rated capacity, or (2) the airflow rate obtained through the indoor coil assembly when the pressure drop across the indoor coil assembly and the recommended enclosures and attachment means is not greater than 0.30 inch of water [75 Pa], whichever is less. Water Cooled AC........................ EER ARI Standard 340/360-2000 3. Models with Indoor Fans, Not Made for Use With Field Installed Duct Systems: (a) Equipment with indoor fans not made for use with field installed duct systems (free discharge) shall be rated at the indoor-coil airflow rate delivered when operating at 0 inches of water [0 Pa] external pressure as specified by the manufacturer. (b) Test indoor air-moving equipment not intended for use with field installed duct systems (free discharge) at 0 inches of water [0 Pa] external pressure. Evaporately Cooled AC.................. EER ARI Standard 340/360-2000 4. Water cooled models: For Standard Ratings of water- cooled units add a total allowance for cooling tower fan motor and circulating water pump motor power inputs in the amount of 10.0 W per 1,000 Btu/h [34.1 W per 1,000 W] cooling capacity. ---------------------------------------------------------------------------------------------------------------- \1\ Incorporated by reference, see Sec. 431.95. \2\ The content of stipulations 1, 2(a), 2(b), 3(a), 3(b), and 4 is taken from Sections 2.2.5, 6.1, 6.1.3.3 (c), 6.1.3.3 (b), 6.1.3.6, and 6.1, respectively, of ARI Standard 210/240-2003. Energy Efficiency Standards