Light Commercial HVAC Key Product Criteria

The tables below summarize the ENERGY STAR Light Commercial HVAC requirements.

ENERGY STAR Light Commercial HVAC – Eligible Product Types1
Central Air Conditioner

Electrically operated, unitary central air conditioner models consist of one or more factory-made assemblies that normally include an evaporator or cooling coil(s), compressor(s), and condenser(s). Air conditioners provide the function of air cooling, and may include the functions of air circulation, air cleaning, dehumidifying, or humidifying.

Heat Pump

Electrically operated, unitary central air-conditioning heat pump models consist 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.

Gas/Electric Package Unit

Single package commercial package air-conditioning and heating equipment with gas heating and electric air-conditioning that is often installed on a slab or a roof.

Variable Refrigerant Flow Multi-Split Systems

Commercial package air-conditioning and heating equipment that is configured as a split system air conditioner incorporating a single refrigerant circuit, with one or more outdoor units, at least one variable-speed compressor or an alternate compressor combination for varying the capacity of the system by three or more steps, and multiple indoor fan coil units, each of which is individually metered and individually controlled by an integral control device and common communications network and which can operate independently in response to multiple indoor thermostats. Variable refrigerant flow implies three or more steps of capacity control on common, inter-connecting piping. The system shall be capable of operating either as an air conditioner or heat pump.

ENERGY STAR Efficiency Criteria

A product shall meet all of the identified criteria if it is to earn the ENERGY STAR.

Criteria for Certified Light Commercial Air Conditioners
Equipment Type
Cooling Capacity
Heating Section Type
Minimum Energy Efficiency Criteria

Small Air-Cooled Central Air Conditioner

≥ 65,000 Btu/h –
< 135,000 Btu/h

Electric Resistance (or None)

12.2 EER; 14.0 IEER

All other

12.0 EER; 13.8 IEER

Large Air-Cooled Central Air Conditioner

≥ 135,000 Btu/h – < 240,000 Btu/h

Electric Resistance (or None)

12.2 EER; 13.2 IEER

All other

12.0 EER; 13.0 IEER

Criteria for Certified Light Commercial Heat Pumps
Equipment Type
Cooling Capacity
Heating Section Type
Minimum Energy Efficiency Criteria

Small Air-Cooled Heat Pump

≥ 65,000 Btu/h – < 135,000 Btu/h

Electric Resistance (or None)

11.8 EER; 12.8 IEER;
3.4 COP at 47°F; 2.4 COP at 17°F

All other

11.6 EER; 12.6 IEER;
3.4 COP at 47°F; 2.4 COP at 17°F

Large Air-Cooled Heat Pump

≥ 135,000 Btu/h – < 240,000 Btu/h

Electric Resistance (or None)

10.9 EER; 12.0 IEER;
3.3 COP at 47°F; 2.1 COP at 17°F

All other

10.7 EER; 11.8 IEER;
3.3 COP at 47°F; 2.1 COP at 17°F

Gas/Electric Package Units Shall meet the appropriate air conditioner or heat pump requirements.

Criteria for Certified Light Commercial VRF Multi-Split Systems
Equipment Type
Cooling Capacity
Heating Section Type
Minimum Energy Efficiency Criteria

VRF Air-Cooled Air Conditioner

≥ 65,000 Btu/h –
< 135,000 Btu/h

All

12.0 EER; 17.4 IEER

VRF Air-Cooled Air Conditioner

≥ 135,000 Btu/h – < 240,000 Btu/h

All

12.0 EER; 16.4 IEER

VRF Air-Cooled Heat Pump

≥ 65,000 Btu/h –
< 135,000 Btu/h

Without Heat Recovery

11.8 EER; 17.4 IEER; 3.4 COP at 47°F

With Heat Recovery

11.6 EER; 17.2 IEER; 3.4 COP at 47°F

VRF Air-Cooled Heat Pump

≥ 135,000 Btu/h – < 240,000 Btu/h

Without Heat Recovery

10.9 EER; 16.4 IEER; 3.3 COP at 47°F

With Heat Recovery

10.7 EER; 16.2 IEER; 3.3 COP at 47°F

Glossary

Coefficient of Performance (COP): The ratio of the produced cooling effect of an air conditioner or heat pump (or its produced heating effect, depending on the mode of operation) to its net work input, when both the cooling (or heating) effect and the net work input are expressed in identical units of measurement.

Cooling Capacity: The capacity associated with the change in air enthalpy between the air entering the unit and the air leaving the unit, which includes both the latent (change in humidity ratio) and sensible (change in dry-bulb temperature) capacities expressed in Btu/h and include the heat of circulation fan(s) and motor(s).

Energy Efficiency Ratio (EER): The ratio of the produced cooling effect of an air conditioner or heat pump to its net work input, expressed in Btu/watt-hour.

Integrated Energy Efficiency Ratio (IEER): A weighted average calculation of mechanical cooling EERs determined for four load levels and corresponding rating conditions, as measured in Appendix A to Subpart F of 10 CFR 431, expressed in Btu/watt-hour.

 

[1] Definitions of product types are based on 10 CFR 431, Subpart F § 431.92