The system is a 4.5 ton Water Furnace Envision that was brought on line last winter. I was supposed to have 4 x 200' vertical loops. A bit was broken in the drilling process so I ended up with 3 x 200', 1 x 140' and 1 x 100'. We had a spring cleaning / inspection today. The temperature of incoming water in the loop was 63F and outgoing was 70F while the unit was cooling. The system was cooling 74F air to 43F. Thanks for your advice.