Electronic thermostat having high and low voltage control capability
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United States of America Patent
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Jan 14, 1997
Grant Date -
N/A
app pub date -
Apr 28, 1994
filing date -
Apr 28, 1994
priority date (Note) -
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Abstract
An electronic thermostat having high and low voltage control capability and varied functional capabilities. The thermostat is particularly suited for use with fan coil heating and cooling units. Specifically the thermostat uses relays to actuate external devices such as heating and cooling equipment, fans and dampers. The use of relays permits control voltages for these external devices to be different (e.g. 24 VAC, 208-230 VAC or 277 VAC).
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