- A heat pump is like a conventional air conditioner except it also can provide
heat in winter. In the summer, the heat pump collects heat from the house
and expels it outside. In the winter, the heat pump extracts heat from outside
air and circulates it inside the house. The heat pump works best when the
outdoor temperature is above freezing. Below that, supplementary heat often
is needed. A heat pump can save 30 to 60 percent less energy to supply the
same heat when compared to an electric furnace with a resistance heating
element.
- COOLING CYCLE -- Refrigerant passes through the indoor coil, evaporating
from a liquid to a vapor. As the liquid evaporates, it absorbs heat, cooling the
air around the coil. An indoor fan pushes this cooled air through ducts inside
the house. Meanwhile, the vaporized refrigerant laden with heat, passes
through a compressor which compresses the vapor, raising its temperature
and pressure. The reversing valve directs the flow of hot, high pressure vapor
to the outdoor coil where the heat released during condensation is fanned
into the outdoor air, and the cycle begins again.
- HEATING CYCLE -- Note that the slide inside the reversing valve has shifted,
causing the refrigerant flow to reverse. Liquid refrigerant now flows to the
outdoor coil picking up heat as it evaporates into a low pressure vapor. The
vapor travels through the compressor where it is compressed into a hot, high
pressure vapor, then is directed by the reversing valve to the indoor coil. The
vapor turns into liquid as it passes through the indoor coil, releasing heat that
is pushed through the ducts by the indoor fan


(918) 481-1622
9723 E. 61 St.
Tulsa, OK
© Copyright 2008 Always Air LLC All Rights Reserved
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Always Air LLC 9723 E. 61St. Tulsa, OK 74133 918.481.1622
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