Heat pump systems: Versatile replacement alternatives
- Engineering Consultant, Dallas, TX (United States)
This article describes how significant reductions in energy costs can be achieved when replacing existing HVAC systems by opting for high-efficiency, year-round heat pump system. As of January 1, 1994, commercial heat pumps with rated cooling capacities of less than 135,000 Btuh are subject to the minimum efficiency requirements set forth in the Energy Policy Act (EPACT) of 1992. This includes commercial unitary heat pumps (CUHP), water-source heat pumps (WSHP), and packaged terminal heat pumps (PTHP). The rated cooling capacity range covered by this statue will be extended to less than 240,000 Btuh'' on January 1, 1995. Covered heat pumps manufactured after these dates that are intended for installation in the US must meet or exceed these minimum efficiency levels. These levels are identical to those found in the ASHRAE Standard 90.1-1989, which is the basis for many state and local energy standards. Many heat pumps currently available exceed these minimum, efficiency requirements by substantial margins, so equipment choice is not limited to heat pumps at the baseline efficiency level.
- OSTI ID:
- 7030076
- Journal Information:
- Heating, Piping and Air Conditioning; (United States), Vol. 66:4; ISSN 0017-940X
- Country of Publication:
- United States
- Language:
- English
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