Solar heating control
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United States of America Patent
Stats
-
Sep 14, 1982
Grant Date -
N/A
app pub date -
Jan 11, 1980
filing date -
Jan 11, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A solar heating control is adapted to be interconnected to a pre-existing auxiliary heating system connected to operate in response to a command signal issued by a pre-existing thermostat. The control operates in response to a first temperature sensed within the solar heating system to directly conduct the command signal from the thermostat to the auxiliary heating system to provide an auxiliary heating sequence. The control responds to a second sensed temperature at the solar heating system to respond to the command signal to operate the solar heating system. The control may be selectively deactivated to permit exclusive operation of the auxiliary heating system by the thermostat when desired. The control selectively connects an alternate impedance to the thermostat for operation in a solar heating sequence to provide similar cyclic operation in both the solar and auxiliary heating sequences. The control provides electrical isolation for its operating circuits including logic circuits and provides transient protection. The control selectively operates in different modes under different sequences for specific seasons of the year for efficient operation. The control operates in response to abnormal temperature conditions to deactivate the solar control through circuitry operating independently from the logic control circuits.
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