// CODE SNIPPET
606.2.2.1 Ground Source Heat Pumps
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The efficiency of ground source heat pumps shall comply with the provisions of Table 606.2.2.1 based on the applicable referenced test procedure.
ENERGY-EFFICIENCY CRITERIA FOR
GROUND SOURCE HEAT PUMPS
|PRODUCT TYPE||MINIMUM |
|Water-to-Air Closed loop||14.1||3.3||ISO 13256-1|
|Water-to-Air Open loop||16.2||3.6||ISO 13256-1|
|Water-to-Water Closed loop||15.1||3.0||ISO 13256-2|
|Water-to-Water Open loop||19.1||3.4||ISO 13256-2|
|Direct Expansion (DX) or Direct GeoExchange (DGX)||15.0||3.5||AHRI 870|
EER = Energy efficiency ratio, COP = Coefficient of performance.
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