A direct expansion refrigerant-based heating and cooling system which includes a refrigerant pumping devise calibrated to ease or eliminate the pumping requirements placed upon the system's compressor unit when one or both of significant system height differentials between the compressor unit and the condensing unit are present and significant system refrigerant fluid transport line distances are present, or are desirable, such as in a deep well direct expansion system application.

 
Web www.patentalert.com

< Cooling system with isolation valve

< Apparatus and method for utilizing recirculated heat to cause refrigeration

> Antifreezing guard for pipes

> Vehicle heating and cooling system

~ 00201