I recently moved into a condo in Kelowna BC Canada that has a geothermal system for heating and cooling. I have heard lots of rumors how poorly the system cools the units there are 32 units on 2 floors, we are on the second floor according to the maintenance people the unit below us is in series with our unit the cold water inlet for me comes up from their outlet. We have not experienced any issues with it being too hot but I found when we moved in that our cold ware supply valve was closed, so I opened that which helped the cooling. I also notice that our cooling coil was not hooked up in a counter flow way, the cold water inlet was on the fan side. I changed that and saw a considerable improvement in our cooling. Now to my questions - The maintenance person has said the other units he checked are also hook in a non counter flow way. Would it not make sense to have all the coils hooked in a counter flow manner so they work more efficient and this would take burden off the main system? If the unit below me is hooked non counter flow would the water coming to my coil be cooler?