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| How Heat Pumps Work A Heat Pump is a reverse cycle Air Conditioner, which means the system both heats and cools. Heat pumps work in much the same way as a refrigerator. Two coils (one inside and one outside) circulate a refrigerant that draws warmth from the outside air and transfers it into your home. Nothing is actually heated, there are no glowing elements and the process is very efficient. The heat-transfer fluid used boils at -40 degrees Celsius, so even on the coldest winter's day heat is absorbed and transferred indoors. In summer, at the push of a button on the remote control, a valve simply reverses the flow of refrigerant so that the heat gained by the indoor coil is transferred outside, keeping the inside of your home or office refreshingly cool. In addition to being cooled, the air is also dehumidified when moisture in the air condenses on the cold coil. This condensate is caught in a drip tray and drained away.
There are two types of technology in the outdoor unit - conventional and inverter. Conventional heat pumps operate the compressor on the outdoor unit at a fixed speed and therefore don’t have the capability to reduce or increase their power output. During most of its life cycle, the heat pump operates under partial load conditions, during which only a fraction of the power output is required to maintain a comfortable temperature. To adjust the capacity output, conventional heat pumps continuously switch the outdoor compressor on and off, causing temperature fluctuations in the room. Inverter systems on the other hand, carefully calibrate the power output, resulting in a quantum improvement in comfort and energy efficiency. The majority of new heat pump models we sell use inverter technology. |
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