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Internal Water-Loop Heat Pumps

Energy Efficiency Regulations

Technical Requirements for Energy-Using Products

Internal water-loop heat pumps

PRODUCT CLASS
MINIMUM COP
Cooling COPc
Heating COPh
November 2006
Cooling capacity
< 5 kW
≥ 3.28°C with 30°C inlet water ≥ 4.2°C with 20°C inlet water
Cooling capacity
≥ 5 kW and ≤ 40 kW
≥ 3.52°C with 30°C inlet water ≥ 4.2°C with 20°C inlet water

Where

COP = Coefficient of performance – a ratio for both the cooling COPc and heating COPh modes calculated by dividing the capacity expressed in watts by the power input in watts, excluding any supplementary heat

Requirements for the energy efficiency report, as listed in Schedule IV of the Regulations:

  • type of product (internal water-loop heat pump);
  • brand name;
  • model number;
  • manufacturer;
  • name of the organization or province that carried out the heat pump verification and authorized the verification mark that will be affixed to the heat pump;
  • voltage;
  • cooling capacity; in kW (Btu/h);
  • heating capacity; in kW (Btu/h);
  • Air-Conditioning and Refrigeration Institute (ARI) classification;
  • cooling coefficient of performance with 30°C inlet water; and
  • heating coefficient of performance with 20°C inlet water.

APPLIES TO
water-source heat pumps that are factory-built single packages or splitsystem matching assemblies that are intended for installation in internal water-loop systems and do not exceed 40 kilowatts (135 000 Btu/h) in cooling or heating capacity.

TEST STANDARD
CAN/CSA-C13256-1

COMPLIANCE DATE
February 3, 1995

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