05462225 is referenced by 230 patents and cites 16 patents.

An apparatus and method for controlling energy supplied to a space conditioning load and for overriding a load control operation in response to measuring certain space temperatures within a closed environment. The load control apparatus includes a control device connected to an electrical distribution network and to a space conditioning load and a temperature sensing device connected to the control device. The control device conducts a load shedding operation to control distribution of electrical energy to the space conditioning load in response to command signals supplied by a remote command center. The temperature sensing device operates to override the load shedding operation by outputting a control override signal to the control device in response to sensing certain space temperatures within the closed environment. If the temperature control device is connected to an air conditioning system, the temperature sensing device causes the control device to terminate the load shedding operation prior to expiration of a selected time period in response to measuring a space temperature that exceeds a maximum space temperature limit. In contrast, if the temperature control device is connected to a forced air heating system, the temperature sensing device causes the control device to terminate the load shedding operation when a measured space temperature drops below a minimum space temperature limit. The maximum space temperature limit is greater than the control temperature setpoint of a thermostat that controls the space conditioning operations, whereas the minimum space temperature limit is less than the control temperature setpoint.

Title
Apparatus and method for controlling distribution of electrical energy to a space conditioning load
Application Number
8/192163
Publication Number
5462225
Application Date
February 4, 1994
Publication Date
October 31, 1995
Inventor
Glenn A Davis
Lilburn
GA, US
James M Massara
Dunwoody
GA, US
Agent
Jones & Askew
Assignee
Scientific Atlanta
GA, US
IPC
G05D 23/00
H02J 1/00
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