Multi-staging of supplemental heat in climate control apparatus
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United States of America Patent
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-
Mar 4, 1997
Grant Date -
N/A
app pub date -
Oct 25, 1994
filing date -
Oct 25, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved heat pump system of the type having a thermostat capable of generating at least three stages of demand signals, outdoor and indoor heat exchange coils, at least one fan, a compressor, an expansion device, with the flow of refrigerant being reversible for purposes of selecting between heating and cooling modes of operation and a supplemental heater having a plurality of supplemental heating units for further heating an air stream passing over the indoor coil through an air supply plenum to supply air to a comfort space. An improvement in this system where each of the supplemental heating units has a unique heating capacity; a combination of supplemental heating units can be selected that is responsive to a demand for heat from the thermostat; and the selected supplemental heating units are turned on appropriately so that the level of heat demand by the thermostat is provided.
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Family
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