I’m looking to replace a 2 ton 4 pipe chiller with a 2 ton open loop geothermal unit. Current set up A 2 tons 4 pipe chiller. A 41 tons hour (410 gallon) Ice Bank. Tripple 175 gallons insulated heat storage tanks. Dual 4 pipe air handlers. My current system works great until we have multiple 90*+ days with nighttime lows in the 80*’s. During the winter we do use some backup electric heating elements. I’m having issues finding any units in the 2 to 3 tons range that would fit my situation. I have a 1,600 sq’ newer tight house. Family of 4 with 2 working from home and 2 doing online school. We are off gird with a small hydro system (7,800 watt). We make ice or heat in thermal storage as dump loads. I have a gravity fed water system for irrigation that I filter that I could use for the open loop geothermal. The summer water temps stay under 65* and the winter water temps stay about 40*.