New construction South 5 ton 2 zoned split hybrid dual fuel Geothermal mechanicals are running in good condition in heat pump multi-stage and cooling multi-stage 0 diagnostic service codes upon arrival today Ice is noticeable on both inlet and discharge lines around the non-insulated fittings at the wall and at the split Geo. Frost is also noticeable on the surface of the coax heat exchanger First floor thermostat (vision pro 8000 setup for two stage geothermal and two-stage gas heat) is at the set point of 68 however the basement T4 thermostat is reading 67 and set to 71 in heat mode Drywall in the basement is not complete causing the hot air to be drawn straight from the ceiling to the return in the ceiling and not satisfying the basement thermostat At the same time the T4110 thermostat (basement zone 2) will never energize second stage heating or cooling if zone 1 is not already running in second stage Re-insulate geothermal ground loop lines Return all equipment to thermos