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VA 23 81 46

WATER-SOURCE UNITARY HEAT PUMPS

active, Most Current
Organization: VA
Publication Date: 1 April 2011
Status: active
Page Count: 19
scope:

DESCRIPTION

A. This section specifies the following configurations of electrically operated "Water-Source Unitary Heat Pumps"

1. Water source unitary heat pumps smaller than 21 KW (6 Tons.

2. Concealed water source heat pumps larger than 21 kW (6 Tons).

3. Vertical stack water source heat pumps.

4. Roof-top and unit ventilator types (Not specified below)

B. Definitions:

1. Coefficient of Performance (COP) - Cooling: The ratio of the rate of the heat removed to the rate of energy input in consistent units, for a complete refrigerating system or some specific portion of that system under designated operating conditions.

2. Coefficient of Performance (COP) - Heating: The ratio of the rate of heat delivered to the rate of energy input is consistent units for a complete heat pump system, including the compressor and, if applicable, auxiliary heat under designated operating conditions.

3. Energy Efficiency Ratio (EER): The ratio of net cooling capacity in Btu/h to total rate of electricity input in watts under designated operating conditions.

4. Seasonal Energy Efficiency Ratio (SEER): The ratio of net cooling capacity in Btu/h to total rate of electricity input in watts over a typical cooling season.

5. Heating Season Performance Factor (HSPF): The ratio of the net heating capacity in Btu/h to total rate of electricity input in watts over a typical heating season.

6. Energy-Star Ratings: Energy-Star is a government-backed labeling program that helps people and organizations save money and reduce greenhouse gas emissions by identifying factories, office equipment, home appliances and electronics that have superior energy efficiency.

7. Unitary Water-Cooled Heat Pump: One or more factory made assemblies that normally include an indoor conditioning coil, compressor(s) and an outdoor refrigerant-to-water heat exchanger. These units provide both heating and cooling functions.

8. FEMP: Federal Energy Management Program

9. Extended Range Heat Pumps (Ground-Source/Ground-Coupled): Heat pumps designed to use with extended operating range of entering water temperature from -1 C (30 F) to 49 C (120 F)

Document History

VA 23 81 46
April 1, 2011
WATER-SOURCE UNITARY HEAT PUMPS
DESCRIPTION A. This section specifies the following configurations of electrically operated "Water-Source Unitary Heat Pumps" 1. Water source unitary heat pumps smaller than 21 KW (6 Tons. 2....

References

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