In our previous articles we highlighted the benefits, design, energy efficiency, and configurations of water source heat pump technology. Though heat pumps include a refrigeration cycle and air conditioner in one small package, they are only able to do this in cooperation with a few building systems that are critical for removing or delivering heat from/to the heat pump. To remove heat from the units the building system includes a cooling tower, and to add heat a boiler. The tower and boiler are connected to the heat pumps by a common water loop. Just...