Duct heater control module
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United States of America Patent
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N/A
Issued Date -
Jan 8, 2009
app pub date -
Apr 24, 2008
filing date -
Jul 3, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A duct heater control module for controlling an electric duct heater in an air duct. The duct heater control module includes a microcontroller for receiving an air flow signal from an air flow sensor for controlling the electric duct heater in response thereto. The microcontroller controls short cycling of the current switching relays, determines the nature of the input signal from a thermostat, and drives a status display.
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