Long-term commercial GSHP performance. 3. Loop temperatures.

Author(s) : KAVANAUGH S., KAVANAUGH J.

Type of article: Article

Summary

Ground loop temperatures have a significant impact on system performance. Systems with maximum average ground loop temperatures below 90°F (32°C) had an average ENERGY STAR rating of 92 while those with temperatures above 95°F (35°C) had an average rating of 53. This article is the third in a series that summarizes a data collection and analysis project to identify common characteristics of successful ground source heat pump (GSHP) systems.