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// CODE SNIPPET

606.2.2.1 Ground Source Heat Pumps

Green Construction Code 2012 of Maryland > 6 ENERGY CONSERVATION, EFFICIENCY AND CO2e EMISSION REDUCTION > 606 Building Mechanical Systems > 606.2 HVAC Equipment Performance Requirements > 606.2.2 Equipment Not Covered by Federal Standards > 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.

TABLE 606.2.2.1
ENERGY-EFFICIENCY CRITERIA FOR
GROUND SOURCE HEAT PUMPS

PRODUCT TYPEMINIMUM
EER
MINIMUM
COP
TEST
PROCEDURE
Water-to-Air Closed loop14.13.3ISO 13256-1
Water-to-Air Open loop16.23.6ISO 13256-1
Water-to-Water Closed loop15.13.0ISO 13256-2
Water-to-Water Open loop19.13.4ISO 13256-2
Direct Expansion (DX) or Direct GeoExchange (DGX)15.03.5AHRI 870
EER = Energy efficiency ratio, COP = Coefficient of performance.

Related Code Sections


606.2.2.1 ENERGY CONSERVATION, EFFICIENCY AND CO2e EMISSION REDUCTION, Ground Source Heat Pumps
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 ...
Green Construction Code 2012 of Maryland > 6 ENERGY CONSERVATION, EFFICIENCY AND CO2e EMISSION REDUCTION > 606 Building Mechanical Systems > 606.2 HVAC Equipment Performance Requirements > 606.2.2 Equipment Not Covered by Federal Standards > 606.2.2.1 Ground Source Heat Pumps
A106.2.2.3 Project Electives, Ground Source Heat Pumps
Ground source heat pumps shall meet the provisions of Table A106.2.2.3 based on the applicable referenced test procedure. TABLE A106.2.2.3 ENERGY ...
Green Construction Code 2012 of Maryland > A Project Electives > A106 Energy Conservation, Efficiency and Earth Atmospheric Quality > A106.2 Mechanical Systems Project Elective > A106.2.2 Mechanical Equipment > A106.2.2.3 Ground Source Heat Pumps
1210.1 Hydronic Piping, Ground-Source Heat Pump-Loop Water Piping
Ground-source heat pump ground-loop piping and tubing material for water-based systems shall conform to the standards cited in this section ...
Mechanical Code 2018 of Maryland > 12 Hydronic Piping > 1210 Plastic Pipe Ground-Source Heat Pump Loop Systems > 1210.1 Ground-Source Heat Pump-Loop Water Piping
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