WaterFurnace Hits the Road

摘要

WaterFurnace Intl. Inc. recently brought its Home Comfort Tour to Columbus, Ohio, to unveil two new products: a 5 Series hydronic geothermal heat pump that features vapor injection technology and the Symphony Home Comfort System. The company's patent pending OptiHeat vapor injection technology is at the heart of the new 504W11 geothermal heat pump. The system uses a Copeland scroll compressor with a third port for EVI (economized vapor injection) that incorporates a small third heat exchanger and electronic expansion valve to exchange heat with the liquid line and reinject it back into the scroll set of the compressor. This allows leaving load water temperatures of up to 150℉ and more efficient operation in a wider operating range.