METHOD OF AND APPARATUS FOR MEETING HEATING DEMAND AND COOLING DEMAND AND CONTROLLER FOR SAID METHOD OF APPARATUS

摘要

Apparatus for satisfying heating and cooling demands including a cooling circuit including a mechanical refrigeration unit having a low pressure side and a high pressure side, a heating circuit including a booster compressor for drawing and further compressing refrigerant from the high pressure side of the refrigeration unit, and a heat reclaiming condenser for passing the further compressed refrigerant vapor in heat transfer relation with a heat transfer fluid to heat the fluid and condense the refrigerant vapor. Also disclosed is a control for stabilizing the vapor flow rate through the booster compressor when the pressure in the high pressure side of the refrigeration unit falls below a first predetermined value and for reducing the vapor flow rate through the booster compressor when the pressure in the high pressure side of the refrigeration unit falls below a second predetermined value less than the first predetermined value.