Water-Source Heat Pump



Department of Energy

The Department of Energy (DOE) regulates the energy efficiency of small, large, and very large commercial package air conditioners and heat pumps, which includes water-source heat pumps. Commercial air conditioners and heat pumps are air-cooled, water-cooled, evaporatively-cooled, or water source unitary air conditioners or heat pumps that are used for space conditioning of commercial and industrial buildings.

Ongoing Rulemakings
Water–Source Heat Pumps (WSHPs) Test Procedure

Summary: The Energy Policy and Conservation Act (EPCA), as amended, requires DOE to conduct a review of its test procedure for each covered class once every seven years to determine if amendments are needed (42 U.S.C. 6314(a)(1)(A)). If DOE determines that amended test procedures would more accurately or fully comply with the requirements under 42 U.S.C. 6314(a)(2) and (3), (related to representativeness during an average use cycle and not being unduly burdensome to conduct), DOE must prescribe amended test procedures for that equipment. Otherwise, DOE must publish a notice regarding its determination that the test procedure does not need to be amended (42 U.S.C. 6314(a)(1)(A)). DOE is initiating an effort to determine whether amendments to the WSHPs test procedure are warranted.

Type of Regulation: Test Procedure

Rulemaking Link: Rulemaking Webpage

Docket ID: EERE-2017-BT-TP-0029

Updates:

Comment Period Close Date: Closed

Where to Comment: EERE-2017-BT-TP-0029

AHRI Comments to Previous Stages of Rulemakings:




Future Regulations

N/A




Current Efficiency Standards

For the purposes of this regulation, standards cover air-cooled, evaporatively cooled, and water-cooled and water source commercial packaged air conditioners and heat pumps.

Commercial package air conditioners and heat pumps manufactured and distributed in commerce, as defined by 10 CFR 431.92, must meet the energy conservation standards specified in the Code of Federal Regulations, 10 CFR 431.97. Compliance dates and minimum efficiencies are available in the following tables.


Table 1. Minimum Cooling Efficiency Levels for Commercial Package Air Conditioners and Heat Pumps (including Variable Refrigerant Flow Systems)

Equipment Type

Cooling Capacity

Sub-Category

Heating Type

Efficiency Level

Compliance Date

Small Commercial Packaged Air-Conditioning and Heating Equipment (Air-Cooled, 3 Phase)

< 65,000 Btu/h

AC

All

SEER = 13

6/16/2008

HP

All

SEER = 13

6/16/2008

Small Commercial Packaged Air-Conditioning and Heating Equipment (Air-Cooled)

65,000 Btu/h and < 135,000 Btu/h

AC

No Heating or Electric Resistance Heating

EER = 11.2

1/1/2010

All Other Types of Heating

EER = 11.0

1/1/2010

HP

No Heating or Electric Resistance Heating

EER = 11.0

1/1/2010

All Other Types of Heating

EER = 10.8

1/1/2010

Large Commercial Packaged Air-Conditioning and Heating Equipment (Air-Cooled)

135,000 Btu/h and < 240,000 Btu/h

AC

No Heating or Electric Resistance Heating

EER = 11.0

1/1/2010

All Other Types of Heating

EER = 10.8

1/1/2010

HP

No Heating or Electric Resistance Heating

EER = 10.6

1/1/2010

All Other Types of Heating

EER = 10.4

1/1/2010

Very Large Commercial Packaged Air-Conditioning and Heating Equipment (Air-Cooled)

240,000 Btu/h and < 760,000 Btu/h

AC

No Heating or Electric Resistance Heating

EER = 10.0

1/1/2010

All Other Types of Heating

EER = 9.8

1/1/2010

HP

No Heating or Electric Resistance Heating

EER = 9.5

1/1/2010

All Other Types of Heating

EER = 9.3

1/1/2010

Small Commercial Packaged Air-Conditioning and Heating Equipment (Water-Cooled, Evaporatively-Cooled, and Water-Source)

< 17,000 Btu/h

AC

All

EER = 12.1

10/29/2003

HP

All

EER = 11.2

10/29/2003

17,000 and < 65,000

AC

All

EER = 12.1

10/29/2003

HP

All

EER = 12.0

10/29/2013

65,000 Btu/h and < 135,000 Btu/h

AC

No Heating or Electric Resistance Heating

EER = 11.3

10/29/2003

All Other Types of Heating

EER = 11.3

10/29/2003

HP

All

EER = 12.0

10/29/2003

Large Commercial Packaged Air-Conditioning and Heating Equipment (Water-Cooled, Evaporatively-Cooled, and Water-Source)

135,000 Btu/h and < 240,000 Btu/h

AC

All

EER = 11.0

10/29/2003

HP

All

EER = 11.0

10/29/2004

Very Large Commercial Packaged Air-Conditioning and Heating Equipment (Water-Cooled, Evaporatively-Cooled, and Water-Source)

240,000 Btu/h and < 760,000 Btu/h

AC

No Heating or Electric Resistance Heating

EER = 11.0

1/10/2011

All Other Types of Heating

EER = 10.8

1/10/2011

HP

No Heating or Electric Resistance Heating

EER = 11.0

1/10/2011

All Other Types of Heating

EER = 10.8

1/10/2011




Table 2. Minimum Heating Efficiency Levels for Commercial Package Heat Pumps (including Variable Refrigerant Flow Systems)

Equipment Type

Cooling Capacity

Efficiency Level

Compliance Date

Small Commercial Packaged Air-Conditioning and Heating Equipment (Air-Cooled, 3 Phase)

< 65,000 Btu/h

HSPF = 7.7

6/16/2008

Small Commercial Packaged Air-Conditioning and Heating Equipment (Air-Cooled)

65,000 Btu/h and < 135,000 Btu/h

COP = 3.3

1/1/2010

Large Commercial Packaged Air-Conditioning and Heating Equipment (Air-Cooled)

135,000 Btu/h and < 240,000 Btu/h

COP = 3.2

1/1/2010

Very Large Commercial Packaged Air-Conditioning and Heating Equipment (Air-Cooled)

240,000 Btu/h and < 760,000 Btu/h

COP = 3.2

1/1/2010

Small Commercial Packaged Air-Conditioning and Heating Equipment (Water-Source)

< 135,000 Btu/h

COP = 4.2

10/29/2003



Amended Standards

On May 16, 2012, DOE published a final rule that amended energy conservation standards for water-cooled and evaporatively-cooled commercial package air-conditioning and heating equipment and established new standards for certain variable refrigerant flow multi-split air conditioners and heat pumps.



Table 4. Energy Conservation Standards for Variable Refrigerant Flow Multi-Split Air Conditioners and Heat Pumps*

Equipment Type

Cooling Capacity

Heating Type

Efficiency Level

Compliance Date

VRF Multi-Split Air Conditioners (Air-cooled)

< 65,000 Btu/h

All

SEER = 13.0

6/16/2008

≥ 65,000 Btu/h and < 135,000 Btu/h

No Heating or Electric Resistance Heating

EER = 11.2

1/1/2010

All Other Types of Heating

EER = 11.0

1/1/2010

≥ 135,000 Btu/h and <240,000 Btu/h

No Heating or Electric Resistance Heating

EER = 11.0

1/1/2010

All Other Types of Heating

EER = 10.8

1/1/2010

≥ 240,000 Btu/h and < 760,000 Btu/h

No Heating or Electric Resistance Heating

EER = 10.0

1/1/2010

All Other Types of Heating

EER = 9.8

1/1/2010

VRF Multi-Split Heat Pumps (Air-Cooled)

< 65,000 Btu/h

All

SEER = 13.0
HSPF = 7.7

6/16/2008

≥ 65,000 Btu/h and < 135,000 Btu/h

No Heating or Electric Resistance Heating

EER = 11.0
COP = 3.3

1/1/2010

All Other Types of Heating

EER = 10.8
COP = 3.3

1/1/2010

≥ 135,000 Btu/h and < 240,000 Btu/h

No Heating or Electric Resistance Heating

EER = 10.6
COP = 3.3

1/1/2010

All Other Types of Heating

EER = 10.4
COP = 3.2

1/1/2010

≥ 240,000 Btu/h and < 760,000 Btu/h

No Heating or Electric Resistance Heating

EER = 9.5
COP = 3.2

1/1/2010

All Other Types of Heating

EER = 9.3
COP = 3.2

1/1/2010

VRF Multi-Split Air Conditioners (Air-cooled)

< 17,000 Btu/h

Without Heat Recovery

EER = 12.0
COP = 4.2

10/29/2012 (EER Level)
10/29/2003 (COP Level)

With Heat Recovery

EER = 11.8
COP = 4.2

10/29/2012 (EER Level)
10/29/2003 (COP Level)

≥ 17,000 Btu/h and < 65,000 Btu/h

All

EER = 12.0
COP = 4.2

10/29/2013

≥ 65,000 Btu/h and < 135,000 Btu/h

All

EER = 12.0
COP = 4.2

10/29/2013

≥ 135,000 Btu/h and < 760,000 Btu/h

Without Heat Recovery

EER = 10.0
COP = 3.9

10/29/2013

With Heat Recovery

EER = 10.0
COP = 3.9

10/29/2013



Links:



Current Test Procedures

To determine compliance with DOE standards, manufacturers must follow the test procedures specified at 10 CFR 431.96 for commercial package air conditioners and heat pumps manufactured or distributed into commerce on or after January 8, 2007.

For further guidance or to submit questions related to the implementation of this test procedure, visit the Guidance and Frequently Asked Questions page.




EPA Energy Star

Current Product Specifications:

Geothermal Heat Pumps Program Requirements Version 3.1 (89KB)

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In Development:

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