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Light Commercial Heating & Cooling Key Product Criteria

Version 2.0 Criteria, effective May 1, 2010

Table 1: Criteria for ENERGY STAR Qualified Light Commercial Air Conditioners
Equipment Type Size Category Heating Section Type SEER EER IEER
Air-Source Central Air Conditioner (3 phase — Single Package) <65,000 Btu/h All 14 11
Air-Source Central Air Conditioner (3 phase — Split System) <65,000 Btu/h All 14 12
Air-Source Central Air Conditioner >=65,000 Btu/h � Electric Resistance (or None) 11.7 11.8
<135,000 Btu/h All other 11.5 11.6
Air-Source Central Air Conditioner >=135,000 Btu/h Electric Resistance (or None) 11.7 11.8
� <240,000 Btu/h All other 11.5 11.6
Table 2: Criteria for ENERGY STAR Qualified Light Commercial Heat Pumps
Equipment Type Size Category Heating Section Type SEER EER HSPF IEER COP
Air-Source Heat Pump (3 phase — Single Package) <65,000 Btu/h All 14 11 8.0
Air-Source Heat Pump (3 phase — Split System) <65,000 Btu/h All 14 11 8.2
Air-Source Heat Pump >=65,000 Btu/h � <135,000 Btu/h Electric Resistance (or None) 11.3 11.4 3.35
Air-Source Heat Pump >=135,000 Btu/h � <240,000 Btu/h Electric Resistance (or None) 10.9 11 3.25

Notes:

Gas/Electric Package Unit Note: To qualify for ENERGY STAR, a gas/electric package unit must meet the appropriate air conditioner specification based on its size category.

VRF Multi-Split Equipment Note: To qualify for ENERGY STAR, VRF equipment must be tested in accordance to AHRI Standard 1230-2009 and meet the appropriate air conditioner or heat pump specification based on its size category.

Definitions

  1. Central Air Conditioner: A central air-conditioner model consists of one or more factory-made assemblies that normally include an evaporator or cooling coil(s), compressor(s), and condenser(s). Central air conditioners provide the function of air-cooling, and may include the functions of air circulation, air cleaning, dehumidifying, or humidifying. For the purposes of this specification, both split system (i.e., a system with components located both inside and outside of a building) and single package units (i.e., a system that has all components completely contained in one unit) rated at 65,000 Btu/h to <240,000 Btu/h are eligible for ENERGY STAR qualification. In addition, three-phase equipment rated below 65,000 Btu/h may qualify under this specification if it meets the energy efficiency criteria outlined in Section 3, below.
  2. Heat Pump: A heat pump model consists of one or more factory-made assemblies that normally include an indoor conditioning coil(s), compressor(s), and outdoor coil(s), including means to provide a heating function. Heat pumps shall provide the function of air heating with controlled temperature, and may include the functions of air-cooling, air circulation, air cleaning, dehumidifying, or humidifying. For the purposes of this specification, both split system and single package units rated at 65,000 Btu/h to <240,000 Btu/h are eligible for ENERGY STAR qualification. In addition, three-phase equipment rated below 65,000 Btu/h may qualify under this specification if it meets the energy efficiency criteria outlined in Section 3, below.
  3. Gas/Electric Package Unit: A single package unit with gas heating and electric air conditioning that is often installed on a slab or a roof. For the purposes of this specification, units rated at 65,000 Btu/h to <240,000 Btu/h are eligible for ENERGY STAR qualification assuming they meet the cooling portion of the specification in Section 3, below. In addition, three-phase equipment rated below 65,000 Btu/h may qualify under this Version 2.0 specification if it meets the energy efficiency criteria outlined in Section 3, below.
  4. Variable Refrigerant Flow (VRF) Multi-Split Systems: A split system air-conditioner or heat pump incorporating a single refrigerant circuit, with one or more outdoor units, at least one variable speed compressor or an alternative compressor combination for varying the capacity of the system by three or more steps, multiple indoor fan coil units, each of which is individually metered and individually controlled by a proprietary control device and common communications network. The system shall be capable of operating either as an air conditioner or a heat pump.
  5. Cooling Capacity: The cooling capacity is the quantity of heat in Btu (British Thermal Units) that an air conditioner or heat pump is able to remove from an enclosed space during a one-hour period.
  6. Energy Efficiency Ratio (EER): EER is a measure of efficiency in the cooling mode that represents the ratio of total cooling capacity (Btu/h) to electrical energy input (Watts).
  7. Coefficient of Performance (COP): COP is a measure of efficiency in the heating mode that represents the ratio of total heating capacity (Btu) to electrical input (also in Btu).
  8. Integrated Energy Efficiency Ratio (IEER): IEER is a measure that expresses cooling part-load EER efficiency for commercial unitary air-conditioning and heat pump equipment on the basis of weighted operation at various load capacities.
  9. Seasonal Energy Efficiency Ratio (SEER): SEER is a measure of equipment energy efficiency over the cooling season. It represents the total cooling of a central air-conditioner or heat pump (in Btu) during the normal cooling season as compared to the total electric energy input (in watt-hours) consumed during the same period.
  10. Heating Seasonal Performance Factor (HSPF): HSPF is a measure of a heat pump�s energy efficiency over one heating season. It represents the total heating output of a heat pump (including supplementary electric heat) during the normal heating season (in Btu) as compared to the total electricity consumed (in watt-hours) during the same period.