Danfoss GEO 250 Data sheet
Technical Paper
Geothermal Heating Surface GEO 250
Description
Heating / Cooling
Capacity
Technical Data
The geothermal surface has two functions:
•Winter: preheating the outdoor air to protect the system from icing up.
•Summer: cooling the outdoor air to freshen up the inlet air.
The typical air supply temperature will be 14-16°C, depending on the outdoor temperature, soil conditions for the brine circuit, etc.
The geothermal surface is connected to a buried ground pipe in which brine (antifreeze) is circulated.
The effect to be achieved with the geothermal surface depends on a number of variables, e.g.
•type of soil
•height of subsoil water
•laying depth of ground pipe
•how the soil is surrounding the ground pipe
The following example describes guidelines for laying ground pipe with brine (Antifreeze).
The only power consumption required for this solution is for the circulation pump.
The surface is supplied fully assembled, incl. automation, two temperature sensors for duct fitting and the required cables.
Plug’n’play installation - the system recognises and configures the surface automatically on connection.
The surface is fitted in the duct system on the outdoor side.
Prerequisites for ground pipe |
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min. depth . . . . . . . . |
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. 1.5 m |
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center distance . . . . . . |
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. .1 m |
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length for a2/w2 unit . . . . |
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. 120-150 m |
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length for a3 unit . . . . . |
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160-200 m |
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Under conditions as mentioned, an output of approx. 15W/m2 = 15W/m is to be expected (rule of thumb).
Width |
600 mm |
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Height |
335 mm |
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Depth |
250 mm |
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Weight |
6.3 kg |
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Duct system connector |
Ø 250 mm |
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Power consumption |
3-10 W |
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Electrical connection |
230 V, 50 Hz |
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Ordering |
Code no . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
089F0354 |
VFFKB102 |
© Danfoss |
10/2010 |
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