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Trane Inc.

The Unico System

ClimateMaster
Geothermal

The Secret To Heating And Cooling Energy $avings

Is Just Beneath Your Feet

  

Similar to an air source heat pump, a geothermal heat pump transfers heat through the refrigerant system into, or out of, the conditioned space.  A geothermal heat pump's heat transfer cycle happens underground.  Where as an air source heat pump does this in the atmosphere.  In the Mid-West, ground below the frost line maintains a constant temperature of about 52 degrees, and the outside air can drop well below 0 degrees.  Thus making an air source heat pump less efficient below 20 degrees.  The geothermal heat pump utilizes the 52 degree temperature year round to pick-up or drop-off heat to condition your home or business.  There are a few different methods available to transfer the heat to or from the earth.  The most common way is with an underground loop system that is installed up to 250 feet under ground.  Another common method is using an actual well, called a pump and dump.  We will use a loop system for demonstration purposes here, and a full examination will be made of your property to determine the right installation method for your system.  The loop system is installed via drilling holes, similar to a well, and inserting poly tubing for the water to circulate through.

  

  

During the geothermal heat pump's heating and cooling cycles, the water circulating into the heat pump crosses paths with the refrigerant system through a coil-inside of a coil.  In the cooling mode, the water circulating in the earth loop is warmer than the surrounding ground.  This causes the water to release energy, in the form of heat, into the earth.  The water, now cooler, flows to the heat exchanger inside the heat pump.  In the heat exchanger, hot refrigerant gas from the compressor releases its heat to the water.  This causes the water to increase in temperature, which it releases to the ground.  The refrigerant, which has released its energy and became a cold liquid, now travels to the air heat exchanger.  Here, the heat pump's blower circulates warm, humid return air across the cold air coil.  After blowing across the air coil, the air is cooled and dehumidified.  The air is then blown through the ductwork to cool the home.  The refrigerant in the air coil picks up the heat energy from the air, and travels to the compressor.  When the refrigerant leaves the compressor, it flows to the earth loop heat exchanger to start the cycle again.  This process is reversed in the heating stage by the touch of a button.    

  

  

 

  

  

  

 

  

  

  

  

Our Installed 

Systems Achieve 

Up To 400% 

Efficiency!  

    

  How's that for a  

  Return On Your Investment?  

  

  

  

  

  

  

 

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CityWide Heating & A/C Systems, Inc.
Email: info@citywidene.com
23912 Cedar Hollow Mall
Waterloo, NE. 68069
Office (402) 289-HVAC
Fax (402) 289-5358
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